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Wang Z, Wang Y, Xin Y, Zhou Q, Ding X, Liu L, Song T, Wu F, Wei Z, Gao H. Simultaneous modulation of cathode/anode and electrolyte interfaces via a nitrile additive for high-energy-density lithium-metal batteries. Chem Sci 2024:d4sc04122d. [PMID: 39323519 PMCID: PMC11417946 DOI: 10.1039/d4sc04122d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2024] [Accepted: 09/12/2024] [Indexed: 09/27/2024] Open
Abstract
Nickel-rich layered oxides have great potential for commercial development applications, so it is critical to address their stability over long cycles. Ensuring long-term cycle stability relies heavily on the stability of the interface between the electrode and electrolyte in Li|LiNi0.8Co0.1Mn0.1O2 (NCM811) batteries. In this work, a denser, more stable and thinner nickel-rich cathode/electrolyte interface was constructed by electrolyte engineering with succinonitrile (SN) as an additive. The increase of organic compound content in the formed Ni-rich cathode/electrolyte interface can fully release the stress and strain generated during repetitive charge-discharge processes, and significantly reduce the irreversible phase transition during the nickel-rich cathode charge-discharge processes. Additionally, this interface impedes the breakdown of electrolytes and the dissolution of transition metals. Furthermore, the addition of SN additives also forms a more stable lithium metal anode/electrolyte interface. Notably, batteries containing SN additives (0.5, 1.0 and 1.5 wt%) show excellent electrochemical performance compared to base electrolytes. Particularly, the improvement is most significant with an SN addition of 1.0 wt%. After 250 cycles at 1C rate, the capacity retention rate of the battery improved by 32.8%. Thus, this work provides a new perspective for simultaneously constructing a stable interface of nickel-rich cathode and lithium metal anode with a high energy density in lithium metal batteries.
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Affiliation(s)
- Ziye Wang
- School of Materials Science & Engineering, Beijing Institute of Technology Beijing 100081 P.R. China
| | - Yingshuai Wang
- School of Materials Science & Engineering, Beijing Institute of Technology Beijing 100081 P.R. China
| | - Yuhang Xin
- School of Materials Science & Engineering, Beijing Institute of Technology Beijing 100081 P.R. China
| | - Qingbo Zhou
- School of Materials Science & Engineering, Beijing Institute of Technology Beijing 100081 P.R. China
| | - Xiangyu Ding
- School of Materials Science & Engineering, Beijing Institute of Technology Beijing 100081 P.R. China
| | - Lei Liu
- School of Materials Science & Engineering, Beijing Institute of Technology Beijing 100081 P.R. China
| | - Tinglu Song
- School of Materials Science & Engineering, Beijing Institute of Technology Beijing 100081 P.R. China
| | - Feng Wu
- School of Materials Science & Engineering, Beijing Institute of Technology Beijing 100081 P.R. China
| | - Zhongbao Wei
- School of Mechanical Engineering, Beijing Institute of Technology Beijing 100081 P.R. China
| | - Hongcai Gao
- School of Materials Science & Engineering, Beijing Institute of Technology Beijing 100081 P.R. China
- Yangtze Delta Region Academy of Beijing Institute of Technology Jiaxing 314019 P.R. China
- Beijing Institute of Technology Chongqing Innovation Center Chongqing 401120 P.R. China
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2
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Li H, Wang L, Song Y, Zhang Z, Du A, Tang Y, Wang J, He X. Why the Synthesis Affects Performance of Layered Transition Metal Oxide Cathode Materials for Li-Ion Batteries. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2312292. [PMID: 38216139 DOI: 10.1002/adma.202312292] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Revised: 12/28/2023] [Indexed: 01/14/2024]
Abstract
The limited cyclability of high-specific-energy layered transition metal oxide (LiTMO2) cathode materials poses a significant challenge to the industrialization of batteries incorporating these materials. This limitation can be attributed to various factors, with the intrinsic behavior of the crystal structure during the cycle process being a key contributor. These factors include phase transition induced cracks, reduced Li active sites due to Li/Ni mixing, and slower Li+ migration. In addition, the presence of synthesis-induced heterogeneous phases and lattice defects cannot be disregarded as they also contribute to the degradation in performance. Therefore, gaining a profound understanding of the intricate relationship among material synthesis, structure, and performance is imperative for the development of LiTMO2. This paper highlights the pivotal role of structural play in LiTMO2 materials and provides a comprehensive overview of how various control factors influence the specific pathways of structural evolution during the synthesis process. In addition, it summarizes the scientific challenges associated with diverse modification approaches currently employed to address the cyclic failure of materials. The overarching goal is to provide readers with profound insights into the study of LiTMO2.
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Affiliation(s)
- Hang Li
- School of Automotive Studies, Tongji University, Shanghai, 201804, China
- Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing, 100084, China
| | - Li Wang
- Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing, 100084, China
| | - Youzhi Song
- Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing, 100084, China
| | - Zhiguo Zhang
- Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing, 100084, China
| | - Aimin Du
- School of Automotive Studies, Tongji University, Shanghai, 201804, China
| | - Yaping Tang
- Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing, 100084, China
| | - Jianlong Wang
- Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing, 100084, China
| | - Xiangming He
- Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing, 100084, China
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3
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Wu D, Zhu C, Wang H, Huang J, Jiang G, Yang Y, Yang G, Tang D, Ma J. Mechanically and Thermally Stable Cathode Electrolyte Interphase Enables High-temperature, High-voltage Li||LiCoO 2 Batteries. Angew Chem Int Ed Engl 2024; 63:e202315608. [PMID: 38083796 DOI: 10.1002/anie.202315608] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Indexed: 01/11/2024]
Abstract
The development of high-energy-density Li||LiCoO2 batteries is severely limited by the instability of cathode electrolyte interphase (CEI) at high voltage and high temperature. Here we propose a mechanically and thermally stable CEI by electrolyte designing for achieving the exceptional performance of Li||LiCoO2 batteries at 4.6 V and 70 °C. 2,4,6-tris(3,4,5-trifluorophenyl)boroxin (TTFPB) as the additive could preferentially enter into the first shell structure of PF6 - solvation and be decomposed on LiCoO2 surface at low oxidation potential to generate a LiBx Oy -rich/LiF-rich CEI. The LiBx Oy surface layer effectively maintained the integrity of CEI and provided excellent mechanical and thermal stability while abundant LiF in CEI further improved the thermal stability and homogeneity of CEI. Such CEI drastically alleviated the crack and regeneration of CEI and irreversible phase transformation of the cathode. As expected, the Li||LiCoO2 batteries with the tailored CEI achieved 91.9 % and 74.0 % capacity retention after 200 and 150 cycles at 4.6 and 4.7 V, respectively. Moreover, such batteries also delivered an unprecedented high-temperature performance with 73.6 % capacity retention after 100 cycles at 70 °C and 4.6 V.
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Affiliation(s)
- Daxiong Wu
- School of Chemistry, Tiangong University, 300387, Tianjin, P. R. China
- School of Physics and Electronics, Hunan University, 410082, Changsha, P. R. China
| | - Chunlei Zhu
- School of Physics and Electronics, Hunan University, 410082, Changsha, P. R. China
| | - Huaping Wang
- School of Physics and Electronics, Hunan University, 410082, Changsha, P. R. China
| | - Junda Huang
- School of Physics and Electronics, Hunan University, 410082, Changsha, P. R. China
| | - Gaoxue Jiang
- School of Physics and Electronics, Hunan University, 410082, Changsha, P. R. China
| | - Yulu Yang
- School of Physics and Electronics, Hunan University, 410082, Changsha, P. R. China
| | - Gaojing Yang
- School of Chemistry, Tiangong University, 300387, Tianjin, P. R. China
| | - Dongliang Tang
- School of Physics and Electronics, Hunan University, 410082, Changsha, P. R. China
| | - Jianmin Ma
- School of Chemistry, Tiangong University, 300387, Tianjin, P. R. China
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4
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Dong Y, Li J. Oxide Cathodes: Functions, Instabilities, Self Healing, and Degradation Mitigations. Chem Rev 2023; 123:811-833. [PMID: 36398933 DOI: 10.1021/acs.chemrev.2c00251] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Recent progress in high-energy-density oxide cathodes for lithium-ion batteries has pushed the limits of lithium usage and accessible redox couples. It often invokes hybrid anion- and cation-redox (HACR), with exotic valence states such as oxidized oxygen ions under high voltages. Electrochemical cycling under such extreme conditions over an extended period can trigger various forms of chemical, electrochemical, mechanical, and microstructural degradations, which shorten the battery life and cause safety issues. Mitigation strategies require an in-depth understanding of the underlying mechanisms. Here we offer a systematic overview of the functions, instabilities, and peculiar materials behaviors of the oxide cathodes. We note unusual anion and cation mobilities caused by high-voltage charging and exotic valences. It explains the extensive lattice reconstructions at room temperature in both good (plasticity and self-healing) and bad (phase change, corrosion, and damage) senses, with intriguing electrochemomechanical coupling. The insights are critical to the understanding of the unusual self-healing phenomena in ceramics (e.g., grain boundary sliding and lattice microcrack healing) and to novel cathode designs and degradation mitigations (e.g., suppressing stress-corrosion cracking and constructing reactively wetted cathode coating). Such mixed ionic-electronic conducting, electrochemically active oxides can be thought of as almost "metalized" if at voltages far from the open-circuit voltage, thus differing significantly from the highly insulating ionic materials in electronic transport and mechanical behaviors. These characteristics should be better understood and exploited for high-performance energy storage, electrocatalysis, and other emerging applications.
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Affiliation(s)
- Yanhao Dong
- State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing100084, China
| | - Ju Li
- Department of Nuclear Science and Engineering and Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts02139, United States
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5
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Zhu Z, Cao S, Ge X, Xi S, Xia H, Zhang W, Lv Z, Wei J, Chen X. Enabling the High-Voltage Operation of Layered Ternary Oxide Cathodes via Thermally Tailored Interphase. SMALL METHODS 2022; 6:e2100920. [PMID: 35243830 DOI: 10.1002/smtd.202100920] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Revised: 12/13/2021] [Indexed: 06/14/2023]
Abstract
Layered ternary oxides LiNix Mny Coz O2 are promising cathode candidates for high-energy lithium-ion batteries (LIBs), but they usually suffer from the severe interfacial parasitic reactions at voltages above 4.3 V versus Li+ /Li, which greatly limit their practical capacities. Herein, using LiNi1/3 Mn1/3 Co1/3 O2 (NMC111) as the model system, a novel high-temperature pre-cycling strategy is proposed to realize its stable cycling in 3.0-4.5 V by constructing a robust cathode/electrolyte interphase (CEI). Specifically, performing the first five cycles of NMC111 at 55 °C helps to yield a uniform CEI layer enriched with fluorine-containing species, Li2 CO3 and poly(CO3 ), which greatly suppresses the detrimental side reactions during extended cycling at 25 °C, endowing the cell with a capacity retention of 92.3% at 1C after 300 cycles, far surpassing 62.0% for the control sample without the thermally tailored CEI. This work highlights the critical role of temperature on manipulating the interfacial properties of cathode materials, opening a new avenue for developing high-voltage cathodes for Li-ion batteries.
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Affiliation(s)
- Zhiqiang Zhu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, China
- Innovative Centre for Flexible Devices (iFLEX), School of Materials Science and Engineering, Nanyang Technological University, Singapore, 639798, Singapore
| | - Shengkai Cao
- Innovative Centre for Flexible Devices (iFLEX), School of Materials Science and Engineering, Nanyang Technological University, Singapore, 639798, Singapore
| | - Xiang Ge
- Innovative Centre for Flexible Devices (iFLEX), School of Materials Science and Engineering, Nanyang Technological University, Singapore, 639798, Singapore
| | - Shibo Xi
- Institute of Chemical and Engineering Sciences, Jurong Island, Singapore, 627833, Singapore
| | - Huarong Xia
- Innovative Centre for Flexible Devices (iFLEX), School of Materials Science and Engineering, Nanyang Technological University, Singapore, 639798, Singapore
| | - Wei Zhang
- Innovative Centre for Flexible Devices (iFLEX), School of Materials Science and Engineering, Nanyang Technological University, Singapore, 639798, Singapore
| | - Zhisheng Lv
- Innovative Centre for Flexible Devices (iFLEX), School of Materials Science and Engineering, Nanyang Technological University, Singapore, 639798, Singapore
| | - Jiaqi Wei
- Innovative Centre for Flexible Devices (iFLEX), School of Materials Science and Engineering, Nanyang Technological University, Singapore, 639798, Singapore
| | - Xiaodong Chen
- Innovative Centre for Flexible Devices (iFLEX), School of Materials Science and Engineering, Nanyang Technological University, Singapore, 639798, Singapore
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6
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Tao XS, Sun YG, Xu YS, Liu Y, Luo JM, Cao AM. Construction of Li 3PO 4 nanoshells for the improved electrochemical performance of a Ni-rich cathode material. Chem Commun (Camb) 2022; 58:2556-2559. [PMID: 35103727 DOI: 10.1039/d1cc06131c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A Li3PO4 nanocoating around a nickel-rich cathode material was successfully constructed via controlling the reaction between the electrode material and a preformed phosphorus-containing polymeric nanoshell; this not only effectively tackles the alkali residue challenge, but it also contributes to much-improved electrochemical performance being shown by a high-energy cathode.
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Affiliation(s)
- Xian-Sen Tao
- CAS Key Laboratory of Molecular Nanostructure and Nanotechnology, and Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences (CAS), Beijing 100190, China. .,The Talent Culturing Plan for Leading Disciplines of Shandong Province, School of Chemistry, Chemical Engineering and Materials, Jining University, Qufu, Shandong, 273155, China
| | - Yong-Gang Sun
- CAS Key Laboratory of Molecular Nanostructure and Nanotechnology, and Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences (CAS), Beijing 100190, China. .,School of Chemistry & Chemical Engineering, Yancheng Institute of Technology, Yancheng, 224051, China
| | - Yan-Song Xu
- CAS Key Laboratory of Molecular Nanostructure and Nanotechnology, and Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences (CAS), Beijing 100190, China.
| | - Yuan Liu
- CAS Key Laboratory of Molecular Nanostructure and Nanotechnology, and Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences (CAS), Beijing 100190, China.
| | - Jin-Min Luo
- CAS Key Laboratory of Molecular Nanostructure and Nanotechnology, and Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences (CAS), Beijing 100190, China. .,University of Chinese Academy of Sciences, Beijing 100049, China
| | - An-Min Cao
- CAS Key Laboratory of Molecular Nanostructure and Nanotechnology, and Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences (CAS), Beijing 100190, China. .,University of Chinese Academy of Sciences, Beijing 100049, China
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7
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Fang C, Yoon I, Hubble D, Tran TN, Kostecki R, Liu G. Recent Applications of Langmuir-Blodgett Technique in Battery Research. ACS APPLIED MATERIALS & INTERFACES 2022; 14:2431-2439. [PMID: 34985860 DOI: 10.1021/acsami.1c19064] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
The Langmuir-Blodgett (LB) technique, in which monolayers are commonly transferred from a liquid/gas interface to a solid surface, allows convenient fabrication of highly ordered thin films with molecular-level precision. This method is widely applicable to substances ranging from organic molecules to nanomaterials. Therefore, LB methods have provided a critical toolbox for researchers to engineer nanoarchitectures. The LB fabrication process is also compatible with numerous substrate materials over large areas, which is advantageous for practical application. Despite its wide applicability, the LB strategy has not been extensively employed in battery studies. The versatility of LB film, along with the accumulated knowledge associated with this technique, makes it a promising platform for promoting battery chemistry evolution. This Review summarizes recent advances of LB methods for high-performance battery development, including preparation of electrode materials, fabrication of functional layers, and battery diagnosis and thus illustrates the high utility of LB approaches in battery research.
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Affiliation(s)
- Chen Fang
- Energy Storage and Distributed Resources Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Insun Yoon
- Energy Storage and Distributed Resources Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Dion Hubble
- Energy Storage and Distributed Resources Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Thanh-Nhan Tran
- Energy Storage and Distributed Resources Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Robert Kostecki
- Energy Storage and Distributed Resources Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Gao Liu
- Energy Storage and Distributed Resources Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
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8
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Zhang H, Liu H, Piper LFJ, Whittingham MS, Zhou G. Oxygen Loss in Layered Oxide Cathodes for Li-Ion Batteries: Mechanisms, Effects, and Mitigation. Chem Rev 2022; 122:5641-5681. [PMID: 35025511 DOI: 10.1021/acs.chemrev.1c00327] [Citation(s) in RCA: 46] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Layered lithium transition metal oxides derived from LiMO2 (M = Co, Ni, Mn, etc.) have been widely adopted as the cathodes of Li-ion batteries for portable electronics, electric vehicles, and energy storage. Oxygen loss in the layered oxides is one of the major factors leading to cycling-induced structural degradation and its associated fade in electrochemical performance. Herein, we review recent progress in understanding the phenomena of oxygen loss and the resulting structural degradation in layered oxide cathodes. We first present the major driving forces leading to the oxygen loss and then describe the associated structural degradation resulting from the oxygen loss. We follow this analysis with a discussion of the kinetic pathways that enable oxygen loss, and then we address the resulting electrochemical fade. Finally, we review the possible approaches toward mitigating oxygen loss and the associated electrochemical fade as well as detail novel analytical methods for probing the oxygen loss.
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Affiliation(s)
- Hanlei Zhang
- Materials Science and Engineering Program & Department of Mechanical Engineering, State University of New York, Binghamton, New York 13902, United States.,NorthEast Center for Chemical Energy Storage, State University of New York, Binghamton, New York 13902, United States
| | - Hao Liu
- NorthEast Center for Chemical Energy Storage, State University of New York, Binghamton, New York 13902, United States
| | - Louis F J Piper
- NorthEast Center for Chemical Energy Storage, State University of New York, Binghamton, New York 13902, United States.,WMG, University of Warwick, Coventry CV4 7AL, United Kingdom
| | - M Stanley Whittingham
- NorthEast Center for Chemical Energy Storage, State University of New York, Binghamton, New York 13902, United States
| | - Guangwen Zhou
- Materials Science and Engineering Program & Department of Mechanical Engineering, State University of New York, Binghamton, New York 13902, United States.,NorthEast Center for Chemical Energy Storage, State University of New York, Binghamton, New York 13902, United States
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9
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Reduction of Surface Residual Lithium Compounds for Single-Crystal LiNi0.6Mn0.2Co0.2O2 via Al2O3 Atomic Layer Deposition and Post-Annealing. COATINGS 2022. [DOI: 10.3390/coatings12010084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Surface residual lithium compounds of Ni-rich cathodes are tremendous obstacles to electrochemical performance due to blocking ion/electron transfer and arousing surface instability. Herein, ultrathin and uniform Al2O3 coating via atomic layer deposition (ALD) coupled with the post-annealing process is reported to reduce residual lithium compounds on single-crystal LiNi0.6Mn0.2Co0.2O2 (NCM622). Surface composition characterizations indicate that LiOH is obviously reduced after Al2O3 growth on NCM622. Subsequent post-annealing treatment causes the consumption of Li2CO3 along with the diffusion of Al atoms into the surface layer of NCM622. The NCM622 modified by Al2O3 coating and post-annealing exhibits excellent cycling stability, the capacity retention of which reaches 92.2% after 300 cycles at 1 C, much higher than that of pristine NCM622 (34.8%). Reduced residual lithium compounds on NCM622 can greatly decrease the formation of LiF and the degree of Li+/Ni2+ cation mixing after discharge–charge cycling, which is the key to the improvement of cycling stability.
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10
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Li Z, Cao S, Xie X, Wu C, Li H, Chang B, Chen G, Guo X, Zhang X, Wang X. Boosting Electrochemical Performance of Lithium-Rich Manganese-Based Cathode Materials through a Dual Modification Strategy with Defect Designing and Interface Engineering. ACS APPLIED MATERIALS & INTERFACES 2021; 13:53974-53985. [PMID: 34732051 DOI: 10.1021/acsami.1c16743] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Low Coulombic efficiency, severe capacity fading and voltage attenuation, and poor rate performance are currently great obstacles for the industrial application of lithium-rich manganese-based cathode materials (LRMCs) in lithium-ion batteries (LIBs). Herein, a dual modification strategy combining defect designing with interface engineering is reported to solve the above problems synchronously. Oxygen vacancies, a carbon nitride protective layer, and a fast ion conductor are simultaneously introduced in the LRMCs. It has been found that oxygen vacancies can suppress the release of irreversible oxygen, which is in favor of improving the initial Coulombic efficiency, the carbon nitride protective layer can improve the structural stability and alleviate the attenuation of capacity and voltage, and the fast ion conductor can promote the diffusion rate of Li+ and electron conductivity and thus enhance the rate capability. The modified material exhibits significantly enhanced electrochemical performances, including a favorable capacity retention rate of 94.2% over 120 cycles at 1C (1C = 200 mAh g-1) and excellent rate capabilities of 173.1 and 136.9 mAh g-1 can be maintained at 5 and 10C after 100 cycles, respectively. Hence, the well-designed dual modification strategy with defect design and interface engineering provides significant exploration for the development and industrialization of LRMCs with high performance.
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Affiliation(s)
- Zhi Li
- National Base for International Science & Technology Cooperation, National Local Joint Engineering Laboratory for Key Materials of New Energy Storage Battery, Hunan Province Key Laboratory of Electrochemical Energy Storage & Conversion, School of Chemistry, Xiangtan University, Xiangtan 411105, China
| | - Shuang Cao
- National Base for International Science & Technology Cooperation, National Local Joint Engineering Laboratory for Key Materials of New Energy Storage Battery, Hunan Province Key Laboratory of Electrochemical Energy Storage & Conversion, School of Chemistry, Xiangtan University, Xiangtan 411105, China
| | - Xin Xie
- National Base for International Science & Technology Cooperation, National Local Joint Engineering Laboratory for Key Materials of New Energy Storage Battery, Hunan Province Key Laboratory of Electrochemical Energy Storage & Conversion, School of Chemistry, Xiangtan University, Xiangtan 411105, China
| | - Chao Wu
- National Base for International Science & Technology Cooperation, National Local Joint Engineering Laboratory for Key Materials of New Energy Storage Battery, Hunan Province Key Laboratory of Electrochemical Energy Storage & Conversion, School of Chemistry, Xiangtan University, Xiangtan 411105, China
| | - Heng Li
- National Base for International Science & Technology Cooperation, National Local Joint Engineering Laboratory for Key Materials of New Energy Storage Battery, Hunan Province Key Laboratory of Electrochemical Energy Storage & Conversion, School of Chemistry, Xiangtan University, Xiangtan 411105, China
| | - Baobao Chang
- Key laboratory of Materials Processing and Mold of Ministry of Education, Zhengzhou University, Zhengzhou, Henan 450001, China
| | - Gairong Chen
- School of Chemistry & Materials Engineering, Xinxiang University, Xinxiang, Henan 453003, China
| | - Xiaowei Guo
- School of Chemistry & Materials Engineering, Xinxiang University, Xinxiang, Henan 453003, China
| | - Xiaoyan Zhang
- National Base for International Science & Technology Cooperation, National Local Joint Engineering Laboratory for Key Materials of New Energy Storage Battery, Hunan Province Key Laboratory of Electrochemical Energy Storage & Conversion, School of Chemistry, Xiangtan University, Xiangtan 411105, China
| | - Xianyou Wang
- National Base for International Science & Technology Cooperation, National Local Joint Engineering Laboratory for Key Materials of New Energy Storage Battery, Hunan Province Key Laboratory of Electrochemical Energy Storage & Conversion, School of Chemistry, Xiangtan University, Xiangtan 411105, China
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11
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Zhu C, Cao M, Zhang H, Lv G, Zhang J, Meng Y, Shu C, Fan W, Zuo M, Xiang W, Guo X. Synergistic Effect of Microstructure Engineering and Local Crystal Structure Tuning to Improve the Cycling Stability of Ni-Rich Cathodes. ACS APPLIED MATERIALS & INTERFACES 2021; 13:48720-48729. [PMID: 34612626 DOI: 10.1021/acsami.1c14239] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Ultrahigh Ni-rich layered oxides have been regarded as one of the most promising cathode candidates. However, cycling instability induced by interfacial reactions and irreversible H2-H3 lattice distortion is yet to be demonstrated by an effective strategy that could construct a stable grain interface and microstructure. Here, Ni-rich cathode LiNi0.92Co0.05Mn0.03O2 is modified by B and Ti to realize the synchronous regulation of a microstructure and the oxygen framework robustness. Compared with the large equiaxed crystalline grains for the pristine cathode, highly elongated grains with a strong radially oriented crystallographic texture in which the (003) facet is maximized are produced for Ti and B-modified LiNi0.92Co0.05Mn0.03O2. With the suppressed H2-H3 phase transition and cation mixing provided by radially oriented grains and turned local crystal oxygen framework robustness during cycling, the co-modified cathode exhibits enhanced Li+ diffusion kinetics and a capacity retention of 78.3% after 100 cycles, which outperformed the 38.5% for the pristine cathode. The improved cycling performance suggests the significance of the turned microstructure and local crystal structure in suppressing internal strain and crystal structure degradation. The synchronous realization of microstructure engineering and local crystal structure turning by optimal element combination would provide a heuristic solution for the construction of high perform Ni-rich cathodes.
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Affiliation(s)
- Chaoqiong Zhu
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, Chengdu 610059, PR China
| | - Mengyuan Cao
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, Chengdu 610059, PR China
| | - Haiyan Zhang
- Sichuan Tobacco Quality Supervision and Testing Station, Chengdu 610041, China
| | - Genpin Lv
- Shaoguan HEC Technology R & D Co., Ltd., Ruyuan, 512000 Guangdong, PR China
| | - Jun Zhang
- Shaoguan HEC Technology R & D Co., Ltd., Ruyuan, 512000 Guangdong, PR China
| | - Yan Meng
- Sichuan Yahua Industrial Group Co. Ltd, Chengdu 610041, PR China
| | - Chaozhu Shu
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, Chengdu 610059, PR China
| | - Weifeng Fan
- Yibin Tianyuan Grp Co., Ltd., Yibin 644200, PR China
| | - Meihua Zuo
- Yibin Tianyuan Grp Co., Ltd., Yibin 644200, PR China
| | - Wei Xiang
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, Chengdu 610059, PR China
- Yibin Tianyuan Grp Co., Ltd., Yibin 644200, PR China
| | - Xiaodong Guo
- School of Chemical Engineering, Sichuan University, Chengdu 610065, PR China
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12
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Rational design of mechanically robust Ni-rich cathode materials via concentration gradient strategy. Nat Commun 2021; 12:6024. [PMID: 34654811 PMCID: PMC8520018 DOI: 10.1038/s41467-021-26290-z] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2021] [Accepted: 09/24/2021] [Indexed: 12/02/2022] Open
Abstract
Mechanical integrity issues such as particle cracking are considered one of the leading causes of structural deterioration and limited long-term cycle stability for Ni-rich cathode materials of Li-ion batteries. Indeed, the detrimental effects generated from the crack formation are not yet entirely addressed. Here, applying physicochemical and electrochemical ex situ and in situ characterizations, the effect of Co and Mn on the mechanical properties of the Ni-rich material are thoroughly investigated. As a result, we successfully mitigate the particle cracking issue in Ni-rich cathodes via rational concentration gradient design without sacrificing the electrode capacity. Our result reveals that the Co-enriched surface design in Ni-rich particles benefits from its low stiffness, which can effectively suppress the formation of particle cracking. Meanwhile, the Mn-enriched core limits internal expansion and improve structural integrity. The concentration gradient design also promotes morphological stability and cycling performances in Li metal coin cell configuration.
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13
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Boron-doped sodium layered oxide for reversible oxygen redox reaction in Na-ion battery cathodes. Nat Commun 2021; 12:5267. [PMID: 34489437 PMCID: PMC8421359 DOI: 10.1038/s41467-021-25610-7] [Citation(s) in RCA: 50] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Accepted: 08/12/2021] [Indexed: 11/08/2022] Open
Abstract
Na-ion cathode materials operating at high voltage with a stable cycling behavior are needed to develop future high-energy Na-ion cells. However, the irreversible oxygen redox reaction at the high-voltage region in sodium layered cathode materials generates structural instability and poor capacity retention upon cycling. Here, we report a doping strategy by incorporating light-weight boron into the cathode active material lattice to decrease the irreversible oxygen oxidation at high voltages (i.e., >4.0 V vs. Na+/Na). The presence of covalent B-O bonds and the negative charges of the oxygen atoms ensures a robust ligand framework for the NaLi1/9Ni2/9Fe2/9Mn4/9O2 cathode material while mitigating the excessive oxidation of oxygen for charge compensation and avoiding irreversible structural changes during cell operation. The B-doped cathode material promotes reversible transition metal redox reaction enabling a room-temperature capacity of 160.5 mAh g-1 at 25 mA g-1 and capacity retention of 82.8% after 200 cycles at 250 mA g-1. A 71.28 mAh single-coated lab-scale Na-ion pouch cell comprising a pre-sodiated hard carbon-based anode and B-doped cathode material is also reported as proof of concept.
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14
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Xie Q, Cui Z, Manthiram A. Unveiling the Stabilities of Nickel-Based Layered Oxide Cathodes at an Identical Degree of Delithiation in Lithium-Based Batteries. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2100804. [PMID: 34219283 DOI: 10.1002/adma.202100804] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2021] [Revised: 04/11/2021] [Indexed: 06/13/2023]
Abstract
Bulk, surface, and interfacial instabilities that impact the cycle and thermal performances are the major challenges with high-energy-density LiNi1- x - y Mnx Coy O2 (NMC) cathodes with high nickel contents. It is generally believed that the instabilities and performance losses become exponentially aggravated as the nickel content increases. Disparate from this prevailing belief, it is herein demonstrated that NMC cathodes with higher Ni contents may imply better overall stability than "lower-Ni" cathodes under an identical degree of delithiation (charging) conditions. With two representative cathodes, LiNi0.8 Mn0.1 Co0.1 O2 and LiNiO2 , a systematic investigation into their stabilities with control of the degree of delithiation is presented. Electrochemical tests indicate that LiNiO2 displays better cyclability than LiNi0.8 Mn0.1 Co0.1 O2 at the same delithiation state. Comprehensive structural and interphase investigations unveil that the inferior cyclability of LiNi0.8 Mn0.1 Co0.1 O2 predominantly results from aggravated parasitic reactions, and the interphase stability may be more critical than lattice stability in dictating cyclability. Also, LiNiO2 delivers similar or better thermal behavior than LiNi0.8 Mn0.1 Co0.1 O2 . The findings demonstrate a strong correlation of the stability of NMC cathodes to the degree of delithiation state rather than the Ni content itself, highlighting the importance of reassessing the true implications of Ni content and structural and interphasial tuning on the stabilities of NMC cathodes.
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Affiliation(s)
- Qiang Xie
- Materials Science and Engineering Program & Texas Materials Institute, The University of Texas at Austin, Austin, TX, 78712, USA
| | - Zehao Cui
- Materials Science and Engineering Program & Texas Materials Institute, The University of Texas at Austin, Austin, TX, 78712, USA
| | - Arumugam Manthiram
- Materials Science and Engineering Program & Texas Materials Institute, The University of Texas at Austin, Austin, TX, 78712, USA
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15
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Kim Y, Park H, Dolocan A, Warner JH, Manthiram A. Wet-CO 2 Pretreatment Process for Reducing Residual Lithium in High-Nickel Layered Oxides for Lithium-Ion Batteries. ACS APPLIED MATERIALS & INTERFACES 2021; 13:27096-27105. [PMID: 34061491 DOI: 10.1021/acsami.1c06277] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
As the push for inexpensive vehicle electrification grows, high-energy-density cathodes for lithium-ion batteries, such as high-nickel layered oxides, have received a great deal of attention in both industry and academia. These materials, however, suffer from severe residual lithium formation, which causes slurry gelation during electrode fabrication and gas evolution during cycling. Herein, a novel cobalt hydroxide coating method on wet-CO2 gas-treated LiNi0.91Mn0.03Co0.06O2 (Co-CO2-NMC91) is presented. Notably, the wet-CO2 treatment prior to a dry cobalt hydroxide coating plays a critical role in improving the coating uniformity and ultimately decreases the effective residual lithium content. Furthermore, full cells of Co-CO2-NMC91 exhibit excellent capacity retention of 91% after 200 cycles. This study highlights how a wet-CO2 treatment can be used to improve a typical dry coating and provides new insights toward the development of cathodes for high-energy-density LIBs without severe slurry gelation or gas evolution.
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Affiliation(s)
- Youngjin Kim
- Department of Mechanical Engineering and Texas Materials Institute, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Hyoju Park
- Department of Mechanical Engineering and Texas Materials Institute, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Andrei Dolocan
- Department of Mechanical Engineering and Texas Materials Institute, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Jamie H Warner
- Department of Mechanical Engineering and Texas Materials Institute, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Arumugam Manthiram
- Department of Mechanical Engineering and Texas Materials Institute, The University of Texas at Austin, Austin, Texas 78712, United States
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16
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Su Y, Li L, Chen G, Chen L, Li N, Lu Y, Bao L, Chen S, Wu F. Strategies of Removing Residual Lithium Compounds on the Surface of
Ni‐Rich
Cathode Materials
†. CHINESE J CHEM 2020. [DOI: 10.1002/cjoc.202000386] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Yuefeng Su
- Beijing Key Laboratory of Environmental Science and Engineering, School of Materials Science and Engineering Beijing Institute of Technology Beijing 100081 China
- Beijing Institute of Technology Chongqing Innovation Center Chongqing 401120 China
| | - Linwei Li
- Beijing Key Laboratory of Environmental Science and Engineering, School of Materials Science and Engineering Beijing Institute of Technology Beijing 100081 China
| | - Gang Chen
- Beijing Key Laboratory of Environmental Science and Engineering, School of Materials Science and Engineering Beijing Institute of Technology Beijing 100081 China
- Beijing Institute of Technology Chongqing Innovation Center Chongqing 401120 China
| | - Lai Chen
- Beijing Key Laboratory of Environmental Science and Engineering, School of Materials Science and Engineering Beijing Institute of Technology Beijing 100081 China
- Beijing Institute of Technology Chongqing Innovation Center Chongqing 401120 China
| | - Ning Li
- Beijing Key Laboratory of Environmental Science and Engineering, School of Materials Science and Engineering Beijing Institute of Technology Beijing 100081 China
- Beijing Institute of Technology Chongqing Innovation Center Chongqing 401120 China
| | - Yun Lu
- Beijing Key Laboratory of Environmental Science and Engineering, School of Materials Science and Engineering Beijing Institute of Technology Beijing 100081 China
- Beijing Institute of Technology Chongqing Innovation Center Chongqing 401120 China
| | - Liying Bao
- Beijing Key Laboratory of Environmental Science and Engineering, School of Materials Science and Engineering Beijing Institute of Technology Beijing 100081 China
| | - Shi Chen
- Beijing Key Laboratory of Environmental Science and Engineering, School of Materials Science and Engineering Beijing Institute of Technology Beijing 100081 China
| | - Feng Wu
- Beijing Key Laboratory of Environmental Science and Engineering, School of Materials Science and Engineering Beijing Institute of Technology Beijing 100081 China
- Beijing Institute of Technology Chongqing Innovation Center Chongqing 401120 China
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17
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Abstract
The aim of this article is to examine the progress achieved in the recent years on two advanced cathode materials for EV Li-ion batteries, namely Ni-rich layered oxides LiNi0.8Co0.15Al0.05O2 (NCA) and LiNi0.8Co0.1Mn0.1O2 (NCM811). Both materials have the common layered (two-dimensional) crystal network isostructural with LiCoO2. The performance of these electrode materials are examined, the mitigation of their drawbacks (i.e., antisite defects, microcracks, surface side reactions) are discussed, together with the prospect on a next generation of Li-ion batteries with Co-free Ni-rich Li-ion batteries.
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18
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Su Y, Chen G, Chen L, Li Q, Lu Y, Bao L, Li N, Chen S, Wu F. Advances and Prospects of Surface Modification on
Nickel‐Rich
Materials for
Lithium‐Ion
Batteries
†. CHINESE J CHEM 2020. [DOI: 10.1002/cjoc.202000385] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Yuefeng Su
- Beijing Key Laboratory of Environmental Science and Engineering, School of Materials Science and Engineering, Beijing Institute of Technology Beijing 100081 China
- Beijing Institute of Technology Chongqing Innovation Center Chongqing 401120 China
| | - Gang Chen
- Beijing Key Laboratory of Environmental Science and Engineering, School of Materials Science and Engineering, Beijing Institute of Technology Beijing 100081 China
- Beijing Institute of Technology Chongqing Innovation Center Chongqing 401120 China
| | - Lai Chen
- Beijing Key Laboratory of Environmental Science and Engineering, School of Materials Science and Engineering, Beijing Institute of Technology Beijing 100081 China
- Beijing Institute of Technology Chongqing Innovation Center Chongqing 401120 China
| | - Qing Li
- Beijing Key Laboratory of Environmental Science and Engineering, School of Materials Science and Engineering, Beijing Institute of Technology Beijing 100081 China
- Beijing Institute of Technology Chongqing Innovation Center Chongqing 401120 China
| | - Yun Lu
- Beijing Key Laboratory of Environmental Science and Engineering, School of Materials Science and Engineering, Beijing Institute of Technology Beijing 100081 China
- Beijing Institute of Technology Chongqing Innovation Center Chongqing 401120 China
| | - Liying Bao
- Beijing Key Laboratory of Environmental Science and Engineering, School of Materials Science and Engineering, Beijing Institute of Technology Beijing 100081 China
| | - Ning Li
- Beijing Key Laboratory of Environmental Science and Engineering, School of Materials Science and Engineering, Beijing Institute of Technology Beijing 100081 China
- Beijing Institute of Technology Chongqing Innovation Center Chongqing 401120 China
| | - Shi Chen
- Beijing Key Laboratory of Environmental Science and Engineering, School of Materials Science and Engineering, Beijing Institute of Technology Beijing 100081 China
| | - Feng Wu
- Beijing Key Laboratory of Environmental Science and Engineering, School of Materials Science and Engineering, Beijing Institute of Technology Beijing 100081 China
- Beijing Institute of Technology Chongqing Innovation Center Chongqing 401120 China
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19
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Hofmann M, Nagler F, Kapuschinski M, Guntow U, Giffin GA. Surface Modification of LiNi 0.8 Co 0.15 Al 0.05 O 2 Particles via Li 3 PO 4 Coating to Enable Aqueous Electrode Processing. CHEMSUSCHEM 2020; 13:5962-5971. [PMID: 32969581 PMCID: PMC7756629 DOI: 10.1002/cssc.202001907] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Revised: 09/17/2020] [Indexed: 06/11/2023]
Abstract
The successful implementation of an aqueous-based electrode manufacturing process for nickel-rich cathode active materials is challenging due to their high water sensitivity. In this work, the surface of LiNi0.8 Co0.15 Al0.05 O2 (NCA) was modified with a lithium phosphate coating to investigate its ability to protect the active material during electrode production. The results illustrate that the coating amount is crucial and a compromise has to be made between protection during electrode processing and sufficient electronic conductivity through the particle surface. Cells with water-based electrodes containing NCA with an optimized amount of lithium phosphate had a slightly lower specific discharge capacity than cells with conventional N-methyl-2-pyrrolidone-based electrodes. Nonetheless, the cells with optimized water-based electrodes could compete in terms of cycle life.
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Affiliation(s)
- Michael Hofmann
- Fraunhofer Institute for Silicate Research ISCFraunhofer R&D Center ElectromobilityNeunerplatz 297082WürzburgGermany
| | - Felix Nagler
- Fraunhofer Institute for Silicate Research ISCFraunhofer R&D Center ElectromobilityNeunerplatz 297082WürzburgGermany
| | - Martina Kapuschinski
- Fraunhofer Institute for Silicate Research ISCFraunhofer R&D Center ElectromobilityNeunerplatz 297082WürzburgGermany
| | - Uwe Guntow
- Fraunhofer Institute for Silicate Research ISCFraunhofer R&D Center ElectromobilityNeunerplatz 297082WürzburgGermany
| | - Guinevere A. Giffin
- Fraunhofer Institute for Silicate Research ISCFraunhofer R&D Center ElectromobilityNeunerplatz 297082WürzburgGermany
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20
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Li S, Ji J, Li Z, Yan L, Jiang W, Ling M, Lin Z, Liang C. Pre‐activation and Defects Introduced via Citric Acid to Mitigate Capacity and Voltage Fading in Li‐rich Cathode. Z Anorg Allg Chem 2020. [DOI: 10.1002/zaac.202000222] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Siyuan Li
- Zhejiang Provincial Key Laboratory of Advanced Chemical Engineering Manufacture Technology College of Chemical and Biological Engineering Zhejiang University 310027 Hangzhou P. R. China
| | - Jiapeng Ji
- Zhejiang Provincial Key Laboratory of Advanced Chemical Engineering Manufacture Technology College of Chemical and Biological Engineering Zhejiang University 310027 Hangzhou P. R. China
| | - Zeheng Li
- Zhejiang Provincial Key Laboratory of Advanced Chemical Engineering Manufacture Technology College of Chemical and Biological Engineering Zhejiang University 310027 Hangzhou P. R. China
| | - Lijing Yan
- Zhejiang Provincial Key Laboratory of Advanced Chemical Engineering Manufacture Technology College of Chemical and Biological Engineering Zhejiang University 310027 Hangzhou P. R. China
| | - Wei Jiang
- Zhejiang Provincial Key Laboratory of Advanced Chemical Engineering Manufacture Technology College of Chemical and Biological Engineering Zhejiang University 310027 Hangzhou P. R. China
| | - Min Ling
- Zhejiang Provincial Key Laboratory of Advanced Chemical Engineering Manufacture Technology College of Chemical and Biological Engineering Zhejiang University 310027 Hangzhou P. R. China
| | - Zhan Lin
- School of Chemical Engineering and Light Industry Guangzhou University of Technology 510006 Guangzhou P. R. China
| | - Chengdu Liang
- Zhejiang Provincial Key Laboratory of Advanced Chemical Engineering Manufacture Technology College of Chemical and Biological Engineering Zhejiang University 310027 Hangzhou P. R. China
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21
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Sun YY, Hou PY, Zhang LC. Mitigating the Microcracks of High-Ni Oxides by In Situ Formation of Binder between Anisotropic Grains for Lithium-Ion Batteries. ACS APPLIED MATERIALS & INTERFACES 2020; 12:13923-13930. [PMID: 32150372 DOI: 10.1021/acsami.9b23470] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Increasing attention has been paid to layered high-Ni oxides with high capacity as a promising cathode for high-energy lithium-ion batteries. However, the undesirable microcracks in secondary particles usually occur due to the volume changes of anisotropic primary grains during cycles, which lead to the decay of electrochemical performance. Here, for the first time, a functional electrolyte with di-sec-butoxyaluminoxytriethoxysilane additive integrating the functions of silane and aluminate is proposed to in situ form the binder-like filler between anisotropic primary grains for mitigating the microcracks of high-Ni oxides. It is demonstrated that Li-containing aluminosilicate as a glue layer between the gaps of grains and as a coating layer on the surface of the grains is generated, and these features further enhance the interfacial bonding and surface stability of anisotropic primary grains. Consequently, the microcracks along with side reactions and phase transitions of high-Ni oxides are mitigated. As anticipated, the electrochemical performance and thermal stability of high-Ni oxides are improved, and there is also a capacity retention of 75.4% even after 300 cycles and large reversible capacity of ∼160 mA h g-1 at 5 C. The functional electrolyte offers a simple, efficient, and scalable method to promote the electrochemical properties and applicability of high-Ni oxide cathodes in high-energy lithium-ion batteries.
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Affiliation(s)
- Yan-Yun Sun
- School of Automobile and Traffic Engineering, Jiangsu University of Technology, Jiangsu Province, 213001, China
| | - Pei-Yu Hou
- School of Physics and Technology, University of Jinan, Jinan, Shandong Province 250022, China
- Department of Applied Physics, The Hong Kong Polytechnic University, Hong Kong, China
| | - Lan-Chun Zhang
- School of Automobile and Traffic Engineering, Jiangsu University of Technology, Jiangsu Province, 213001, China
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22
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Si M, Wang D, Zhao R, Pan D, Zhang C, Yu C, Lu X, Zhao H, Bai Y. Local Electric-Field-Driven Fast Li Diffusion Kinetics at the Piezoelectric LiTaO 3 Modified Li-Rich Cathode-Electrolyte Interphase. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2020; 7:1902538. [PMID: 32042568 PMCID: PMC7001634 DOI: 10.1002/advs.201902538] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Indexed: 05/27/2023]
Abstract
As one of the most promising cathodes for next-generation lithium ion batteries (LIBs), Li-rich materials have been extensively investigated for their high energy densities. However, the practical application of Li-rich cathodes is extremely retarded by the sluggish electrode-electrolyte interface kinetics and structure instability. In this context, piezoelectric LiTaO3 is employed to functionalize the surface of Li1.2Ni0.17Mn0.56Co0.07O2 (LNMCO), aiming to boost the interfacial Li+ transport process in LIBs. The results demonstrate that the 2 wt% LiTaO3-LNMCO electrode exhibits a stable capacity of 209.2 mAh g-1 at 0.1 C after 200 cycles and 172.4 mAh g-1 at 3 C. Further investigation reveals that such superior electrochemical performances of the LiTaO3 modified electrode results from the additional driving force from the piezoelectric LiTaO3 layer in promoting Li+ diffusion at the interface, as well as the stabilized bulk structure of LNMCO. The supplemented LiTaO3 layer on the LNMCO surface herein, sheds new light on the development of better Li-rich cathodes toward high energy density applications.
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Affiliation(s)
- Mengting Si
- School of Physics & ElectronicsHenan UniversityKaifeng475004P. R. China
| | - Dandan Wang
- School of Physics & ElectronicsHenan UniversityKaifeng475004P. R. China
| | - Rui Zhao
- School of Physics & ElectronicsHenan UniversityKaifeng475004P. R. China
| | - Du Pan
- School of Physics & ElectronicsHenan UniversityKaifeng475004P. R. China
| | - Chen Zhang
- School of Physics & ElectronicsHenan UniversityKaifeng475004P. R. China
| | - Caiyan Yu
- School of Physics & ElectronicsHenan UniversityKaifeng475004P. R. China
- National Demonstration Center for Experimental Physics and Electronics EducationSchool of Physics & ElectronicsHenan UniversityKaifeng475004P. R. China
| | - Xia Lu
- School of MaterialsSun Yat‐sen UniversityGuangzhou510275P. R. China
| | - Huiling Zhao
- School of Physics & ElectronicsHenan UniversityKaifeng475004P. R. China
| | - Ying Bai
- School of Physics & ElectronicsHenan UniversityKaifeng475004P. R. China
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23
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Huang J, Du K, Peng Z, Cao Y, Xue Z, Duan J, Wang F, Liu Y, Hu G. Enhanced High‐Temperature Electrochemical Performance of Layered Nickel‐Rich Cathodes for Lithium‐Ion Batteries after LiF Surface Modification. ChemElectroChem 2019. [DOI: 10.1002/celc.201901505] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Jinlong Huang
- School of Metallurgy and EnvironmentCentral South University Changsha 410083 China
| | - Ke Du
- School of Metallurgy and EnvironmentCentral South University Changsha 410083 China
| | - Zhongdong Peng
- School of Metallurgy and EnvironmentCentral South University Changsha 410083 China
| | - Yanbing Cao
- School of Metallurgy and EnvironmentCentral South University Changsha 410083 China
| | - Zhichen Xue
- School of Metallurgy and EnvironmentCentral South University Changsha 410083 China
| | - Jianguo Duan
- Faculty of Metallurgical and Energy EngineeringKunming University of Science and Technology Kunming 650093 China
| | - Fei Wang
- School of Materials Science and EngineeringHenan University of Science and Technology Luoyang 471023 P. R. China
| | - Yong Liu
- School of Materials Science and EngineeringHenan University of Science and Technology Luoyang 471023 P. R. China
| | - Guorong Hu
- School of Metallurgy and EnvironmentCentral South University Changsha 410083 China
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24
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Lee H, Oh P, Kim J, Cha H, Chae S, Lee S, Cho J. Advances and Prospects of Sulfide All-Solid-State Lithium Batteries via One-to-One Comparison with Conventional Liquid Lithium Ion Batteries. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2019; 31:e1900376. [PMID: 31140636 DOI: 10.1002/adma.201900376] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2019] [Revised: 03/18/2019] [Indexed: 06/09/2023]
Abstract
Owing to the safety issue of lithium ion batteries (LIBs) under the harsh operating conditions of electric vehicles and mobile devices, all-solid-state lithium batteries (ASSLBs) that utilize inorganic solid electrolytes are regarded as a secure next-generation battery system. Significant efforts are devoted to developing each component of ASSLBs, such as the solid electrolyte and the active materials, which have led to considerable improvements in their electrochemical properties. Among the various solid electrolytes such as sulfide, polymer, and oxide, the sulfide solid electrolyte is considered as the most promising candidate for commercialization because of its high lithium ion conductivity and mechanical properties. However, the disparity in energy and power density between the current sulfide ASSLBs and conventional LIBs is still wide, owing to a lack of understanding of the battery electrode system. Representative developments of ASSLBs in terms of the sulfide solid electrolyte, active materials, and electrode engineering are presented with emphasis on the current status of their electrochemical performances, compared to those of LIBs. As a rational method to realizing high energy sulfide ASSLBs, the requirements for the sulfide solid electrolytes and active materials are provided along through simple experimental demonstrations. Potential future research directions in the development of commercially viable sulfide ASSLBs are suggested.
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Affiliation(s)
- Hyomyung Lee
- Department of Energy Engineering, School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Republic of Korea
| | - Pilgun Oh
- Department of Graphic Arts Information Engineering, Pukyong National University, Busan, 485471, Republic of Korea
| | - Junhyeok Kim
- Department of Energy Engineering, School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Republic of Korea
| | - Hyungyeon Cha
- Department of Energy Engineering, School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Republic of Korea
| | - Sujong Chae
- Department of Energy Engineering, School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Republic of Korea
| | - Sanghan Lee
- Department of Energy Engineering, School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Republic of Korea
| | - Jaephil Cho
- Department of Energy Engineering, School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Republic of Korea
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25
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Chen J, Zhu L, Jia D, Jiang X, Wu Y, Hao Q, Xia X, Ouyang Y, Peng L, Tang W, Liu T. LiNi0.8Co0.15Al0.05O2 cathodes exhibiting improved capacity retention and thermal stability due to a lithium iron phosphate coating. Electrochim Acta 2019. [DOI: 10.1016/j.electacta.2019.04.153] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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26
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Sun YY, Wang YY, Li GR, Liu S, Gao XP. Metalophilic Gel Polymer Electrolyte for in Situ Tailoring Cathode/Electrolyte Interface of High-Nickel Oxide Cathodes in Quasi-Solid-State Li-Ion Batteries. ACS APPLIED MATERIALS & INTERFACES 2019; 11:14830-14839. [PMID: 30945528 DOI: 10.1021/acsami.9b02440] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
High-Ni layered oxides are potential cathodes for high energy Li-ion batteries due to their large specific capacity advantage. However, the fast capacity fade by undesirable structural degradation in liquid electrolyte during long-term cycling is a stumbling block for the commercial application of high-Ni oxides. In this work, a functional gel polymer electrolyte, grafted with sodium alginate, is introduced to increase the stability of high-Ni oxide cathodes at the levels of both the particle and electrode. An in situ generated ion-conducting layer appears on the interface through the chemical interaction between transition-metal cations of the cathode and the metalophilic reticulum group in sodium alginate. Such a tailoring layer can not only enhance the interfacial compatibility on the cathode/electrolyte interface, reducing the interfacial resistance, but also inhibit the HF corrosion, suppressing the dissolution of transition-metal cations and harmful gradient distribution of components through the oxide cathode at the electrode level. Meanwhile, detrimental microcracks in oxide microspheres and between primary crystallites are impressively inhibited at the particle level. The high-Ni oxide cathode with the metalophilic gel polymer electrolyte shows excellent cycle stability with large initial capacity of 204.9 mA h g-1 at a 1.0 C rate and high discharge capacity retention within 300 cycles at high temperature.
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Affiliation(s)
- Yan-Yun Sun
- Institute of New Energy Material Chemistry, School of Materials Science and Engineering , Nankai University , Tianjin 300350 , China
| | - Yang-Yang Wang
- Institute of New Energy Material Chemistry, School of Materials Science and Engineering , Nankai University , Tianjin 300350 , China
| | - Guo-Ran Li
- Institute of New Energy Material Chemistry, School of Materials Science and Engineering , Nankai University , Tianjin 300350 , China
| | - Sheng Liu
- Institute of New Energy Material Chemistry, School of Materials Science and Engineering , Nankai University , Tianjin 300350 , China
| | - Xue-Ping Gao
- Institute of New Energy Material Chemistry, School of Materials Science and Engineering , Nankai University , Tianjin 300350 , China
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28
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Wu Y, Ben L, Yu H, Qi W, Zhan Y, Zhao W, Huang X. Understanding the Effect of Atomic-Scale Surface Migration of Bridging Ions in Binding Li 3PO 4 to the Surface of Spinel Cathode Materials. ACS APPLIED MATERIALS & INTERFACES 2019; 11:6937-6947. [PMID: 30525422 DOI: 10.1021/acsami.8b18280] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Spinel cathode materials (e.g., LiMn2O4 and LiNi0.5Mn1.5O4) with strongly bonded surface coatings are desirable for delivering improved electrochemical performance in long-term cycling. Here, we report that the introduction of bridging ions such as Fe and Co, which can diffuse into both the spinel cathode materials and Li3PO4, the latter is found to cover the spinel surface in the form of dense and uniform particles (∼2-3 nm). Detailed structural analysis of the surface reveals that the bridging ions diffuse into the 16c site of the spinel structure to form ion-doped spinel cathode materials, which contribute to the formation of strong bonds between the surface and Li3PO4, possibly via spinel-(surface bridging ions)-Li3PO4 bonds. The critical role of the surface bridging ions is further investigated by heating the as-formed Li3PO4-coated spinel cathode materials (with bridging ions) to high temperatures, resulting in further diffusion of bringing ions from the surface to the interior of the spinel materials and consequently depletion of the surface spinel-(surface bridging ions)-Li3PO4 bonds. This leads to the gradual growth of surface Li3PO4 particles (∼20 nm) and the exposure of the spinel surface.
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Affiliation(s)
- Yida Wu
- Key Laboratory for Renewable Energy, Beijing Key Laboratory for New Energy Materials and Devices, Institute of Physics , Chinese Academy of Sciences , Beijing , 100190 , China
- Songshan Lake Mat Lab, Dongguan 523808 , Guangdong , People's Republic of China
| | - Liubin Ben
- Key Laboratory for Renewable Energy, Beijing Key Laboratory for New Energy Materials and Devices, Institute of Physics , Chinese Academy of Sciences , Beijing , 100190 , China
- Songshan Lake Mat Lab, Dongguan 523808 , Guangdong , People's Republic of China
| | - Hailong Yu
- Key Laboratory for Renewable Energy, Beijing Key Laboratory for New Energy Materials and Devices, Institute of Physics , Chinese Academy of Sciences , Beijing , 100190 , China
- Songshan Lake Mat Lab, Dongguan 523808 , Guangdong , People's Republic of China
| | - Wenbin Qi
- Key Laboratory for Renewable Energy, Beijing Key Laboratory for New Energy Materials and Devices, Institute of Physics , Chinese Academy of Sciences , Beijing , 100190 , China
- Songshan Lake Mat Lab, Dongguan 523808 , Guangdong , People's Republic of China
| | - Yuanjie Zhan
- Key Laboratory for Renewable Energy, Beijing Key Laboratory for New Energy Materials and Devices, Institute of Physics , Chinese Academy of Sciences , Beijing , 100190 , China
- Songshan Lake Mat Lab, Dongguan 523808 , Guangdong , People's Republic of China
| | - Wenwu Zhao
- Key Laboratory for Renewable Energy, Beijing Key Laboratory for New Energy Materials and Devices, Institute of Physics , Chinese Academy of Sciences , Beijing , 100190 , China
- Center of Materials Science and Optoelectronics Engineering , University of Chinese Academy of Sciences , Beijing 100049 , China
- Songshan Lake Mat Lab, Dongguan 523808 , Guangdong , People's Republic of China
| | - Xuejie Huang
- Key Laboratory for Renewable Energy, Beijing Key Laboratory for New Energy Materials and Devices, Institute of Physics , Chinese Academy of Sciences , Beijing , 100190 , China
- Center of Materials Science and Optoelectronics Engineering , University of Chinese Academy of Sciences , Beijing 100049 , China
- Songshan Lake Mat Lab, Dongguan 523808 , Guangdong , People's Republic of China
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Dong H, Liu G, Li S, Deng S, Cui Y, Liu H, Liu H, Sun X. Design of a 3D-Porous Structure with Residual Carbon for High-Performance Ni-Rich Cathode Materials. ACS APPLIED MATERIALS & INTERFACES 2019; 11:2500-2506. [PMID: 30507137 DOI: 10.1021/acsami.8b17800] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Recently, LiNi0.8Co0.1Mn0.1O2 has drawn much attention because of its high energy density. Here, 3D-porous LiNi0.8Co0.1Mn0.1O2 and the one with residual carbon have been synthesized using a resorcinol-formaldehyde-assisted sol-gel approach. Scanning electron microscopy images verify that the synthesized LiNi0.8Co0.1Mn0.1O2 possesses a 3D-porous morphology. X-ray photoelectron spectroscopy analysis and transmission electron microscopy-mapping images indicate the existence of residual carbon in the secondary particle of 3D-porous LiNi0.8Co0.1Mn0.1O2. Furthermore, 3D-porous LiNi0.8Co0.1Mn0.1O2 with residual carbon exhibits outstanding electrochemical properties. At a current density of 1900 mA g-1, the 3D-porous LiNi0.8Co0.1Mn0.1O2 with residual carbon can still deliver a reversible capacity of 113 . Moreover, after 150 cycles at 0.2 C, the capacity retention of 3D-porous LiNi0.8Co0.1Mn0.1O2 with residual carbon reaches to 95%. The excellent electrochemical properties can be ascribed to the unique 3D-porous morphology and residual carbon in the secondary particle.
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Affiliation(s)
- Hang Dong
- Chengdu Green Energy and Green Manufacturing Technology R&D Center, Chengdu Development Center of Science and Technology , China Academy of Engineering Physics , Chengdu 610200 , China
- College of Materials Science and Engineering , Sichuan University , Chengdu 610064 , China
| | - Guobiao Liu
- Department of Materials Science , Sichuan Engineering Technical College , Deyang 618000 , China
| | - Shaomin Li
- Chengdu Green Energy and Green Manufacturing Technology R&D Center, Chengdu Development Center of Science and Technology , China Academy of Engineering Physics , Chengdu 610200 , China
| | - Sixu Deng
- Department of Mechanical and Materials Engineering , University of Western Ontario , London , Ontario N6A 5B9 , Canada
| | - Yanhua Cui
- Institute of Electronic Engineering , China Academy of Engineering Physics , Mianyang 621000 , PR China
| | - Heng Liu
- College of Materials Science and Engineering , Sichuan University , Chengdu 610064 , China
| | - Hao Liu
- Chengdu Green Energy and Green Manufacturing Technology R&D Center, Chengdu Development Center of Science and Technology , China Academy of Engineering Physics , Chengdu 610200 , China
| | - Xueliang Sun
- Department of Mechanical and Materials Engineering , University of Western Ontario , London , Ontario N6A 5B9 , Canada
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30
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Fan W, Li N, Zhang X, Zhao S, Cao R, Yin Y, Xing Y, Wang J, Guo Y, Li C. A Dual-Salt Gel Polymer Electrolyte with 3D Cross-Linked Polymer Network for Dendrite-Free Lithium Metal Batteries. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2018; 5:1800559. [PMID: 30250798 PMCID: PMC6145227 DOI: 10.1002/advs.201800559] [Citation(s) in RCA: 68] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2018] [Revised: 05/24/2018] [Indexed: 05/19/2023]
Abstract
Lithium metal batteries show great potential in energy storage because of their high energy density. Nevertheless, building a stable solid electrolyte interphase (SEI) and restraining the dendrite growth are difficult to realize with traditional liquid electrolytes. Solid and gel electrolytes are considered promising candidates to restrain the dendrites growth, while they are still limited by low ionic conductivity and incompatible interphases. Herein, a dual-salt (LiTFSI-LiPF6) gel polymer electrolyte (GPE) with 3D cross-linked polymer network is designed to address these issues. By introducing a dual salt in 3D structure fabricated using an in situ polymerization method, the 3D-GPE exhibits a high ionic conductivity (0.56 mS cm-1 at room temperature) and builds a robust and conductive SEI on the lithium metal surface. Consequently, the Li metal batteries using 3D-GPE can markedly reduce the dendrite growth and achieve 87.93% capacity retention after cycling for 300 cycles. This work demonstrates a promising method to design electrolytes for lithium metal batteries.
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Affiliation(s)
- Wei Fan
- Beijing Institute of Nanoenergy and NanosystemsChinese Academy of SciencesBeijing100083P. R. China
- School of Nanoscience and TechnologyUniversity of Chinese Academy of SciencesBeijing100049P. R. China
| | - Nian‐Wu Li
- Beijing Institute of Nanoenergy and NanosystemsChinese Academy of SciencesBeijing100083P. R. China
- School of Nanoscience and TechnologyUniversity of Chinese Academy of SciencesBeijing100049P. R. China
| | - Xiuling Zhang
- Beijing Institute of Nanoenergy and NanosystemsChinese Academy of SciencesBeijing100083P. R. China
- School of Nanoscience and TechnologyUniversity of Chinese Academy of SciencesBeijing100049P. R. China
| | - Shuyu Zhao
- School of Energy and Environmental EngineeringUniversity of Science and Technology BeijingBeijing100083China
| | - Ran Cao
- Beijing Institute of Nanoenergy and NanosystemsChinese Academy of SciencesBeijing100083P. R. China
- School of Nanoscience and TechnologyUniversity of Chinese Academy of SciencesBeijing100049P. R. China
| | - Yingying Yin
- Beijing Institute of Nanoenergy and NanosystemsChinese Academy of SciencesBeijing100083P. R. China
- School of Nanoscience and TechnologyUniversity of Chinese Academy of SciencesBeijing100049P. R. China
| | - Yi Xing
- School of Energy and Environmental EngineeringUniversity of Science and Technology BeijingBeijing100083China
| | - Jiaona Wang
- School of Materials Science and EngineeringBeijing Institute of Fashion TechnologyBeijing100029China
- Beijing Key Laboratory of Clothing Materials R&D and AssessmentBeijing100029China
| | - Yu‐Guo Guo
- CAS Key Laboratory of Molecular Nanostructure and NanotechnologyCAS Research/Education Center for Excellence in Molecular SciencesInstitute of ChemistryChinese Academy of Sciences (CAS)Beijing100190P. R. China
| | - Congju Li
- Beijing Institute of Nanoenergy and NanosystemsChinese Academy of SciencesBeijing100083P. R. China
- School of Nanoscience and TechnologyUniversity of Chinese Academy of SciencesBeijing100049P. R. China
- School of Energy and Environmental EngineeringUniversity of Science and Technology BeijingBeijing100083China
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31
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Neudeck S, Walther F, Bergfeldt T, Suchomski C, Rohnke M, Hartmann P, Janek J, Brezesinski T. Molecular Surface Modification of NCM622 Cathode Material Using Organophosphates for Improved Li-Ion Battery Full-Cells. ACS APPLIED MATERIALS & INTERFACES 2018; 10:20487-20498. [PMID: 29812899 DOI: 10.1021/acsami.8b04405] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Surface coating is a viable strategy for improving the cyclability of Li1+ x(Ni1- y- zCo yMn z)1- xO2 (NCM) cathode active materials for lithium-ion battery cells. However, both gaining synthetic control over thickness and accurate characterization of the surface shell, which is typically only a few nm thick, are considerably challenging. Here, we report on a new molecular surface modification route for NCM622 (60% Ni) using organophosphates, specifically tris(4-nitrophenyl) phosphate (TNPP) and tris(trimethylsilyl) phosphate. The functionalized NCM622 was thoroughly characterized by state-of-the-art surface and bulk techniques, such as attenuated total reflection infrared spectroscopy, X-ray photoelectron spectroscopy, and time-of-flight secondary ion mass spectrometry (ToF-SIMS), to name a few. The comprehensive ToF-SIMS-based study comprised surface imaging, depth profiling, and three-dimensional visualization. In particular, tomography is a powerful tool to analyze the nature and morphology of thin coatings and is applied, to our knowledge, for the first time, to a practical cathode active material. It provides valuable information about relatively large areas (over several secondary particles) at high lateral and mass resolution. The electrochemical performance of the different NCM622 materials was evaluated in long-term cycling experiments of full-cells with a graphite anode. The effect of surface modification on the transition-metal leaching was studied ex situ via inductively coupled plasma optical emission spectroscopy. TNPP@NCM622 showed reduced transition-metal dissolution and much improved cycling performance. Taken together, with this study, we contribute to optimization of an industrially relevant cathode active material for application in high-energy-density lithium-ion batteries.
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Affiliation(s)
| | - Felix Walther
- Institute of Physical Chemistry & Center for Materials Research , Justus-Liebig-University Giessen , Heinrich-Buff-Ring 17 , 35392 Giessen , Germany
| | | | - Christian Suchomski
- Institute of Physical Chemistry & Center for Materials Research , Justus-Liebig-University Giessen , Heinrich-Buff-Ring 17 , 35392 Giessen , Germany
| | - Marcus Rohnke
- Institute of Physical Chemistry & Center for Materials Research , Justus-Liebig-University Giessen , Heinrich-Buff-Ring 17 , 35392 Giessen , Germany
| | | | - Jürgen Janek
- Institute of Physical Chemistry & Center for Materials Research , Justus-Liebig-University Giessen , Heinrich-Buff-Ring 17 , 35392 Giessen , Germany
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32
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Zhang XD, Shi JL, Liang JY, Yin YX, Zhang JN, Yu XQ, Guo YG. Suppressing Surface Lattice Oxygen Release of Li-Rich Cathode Materials via Heterostructured Spinel Li 4 Mn 5 O 12 Coating. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2018; 30:e1801751. [PMID: 29808533 DOI: 10.1002/adma.201801751] [Citation(s) in RCA: 139] [Impact Index Per Article: 23.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2018] [Revised: 04/13/2018] [Indexed: 06/08/2023]
Abstract
Lithium-rich layered oxides with the capability to realize extraordinary capacity through anodic redox as well as classical cationic redox have spurred extensive attention. However, the oxygen-involving process inevitably leads to instability of the oxygen framework and ultimately lattice oxygen release from the surface, which incurs capacity decline, voltage fading, and poor kinetics. Herein, it is identified that this predicament can be diminished by constructing a spinel Li4 Mn5 O12 coating, which is inherently stable in the lattice framework to prevent oxygen release of the lithium-rich layered oxides at the deep delithiated state. The controlled KMnO4 oxidation strategy ensures uniform and integrated encapsulation of Li4 Mn5 O12 with structural compatibility to the layered core. With this layer suppressing oxygen release, the related phase transformation and catalytic side reaction that preferentially start from the surface are consequently hindered, as evidenced by detailed structural evolution during Li+ extraction/insertion. The heterostructure cathode exhibits highly competitive energy-storage properties including capacity retention of 83.1% after 300 cycles at 0.2 C, good voltage stability, and favorable kinetics. These results highlight the essentiality of oxygen framework stability and effectiveness of this spinel Li4 Mn5 O12 coating strategy in stabilizing the surface of lithium-rich layered oxides against lattice oxygen escaping for designing high-performance cathode materials for high-energy-density lithium-ion batteries.
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Affiliation(s)
- Xu-Dong Zhang
- CAS Key Laboratory of Molecular Nanostructure and Nanotechnology, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences (CAS), Beijing, 100190, P. R. China
- School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Ji-Lei Shi
- CAS Key Laboratory of Molecular Nanostructure and Nanotechnology, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences (CAS), Beijing, 100190, P. R. China
- School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Jia-Yan Liang
- CAS Key Laboratory of Molecular Nanostructure and Nanotechnology, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences (CAS), Beijing, 100190, P. R. China
- School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Ya-Xia Yin
- CAS Key Laboratory of Molecular Nanostructure and Nanotechnology, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences (CAS), Beijing, 100190, P. R. China
- School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Jie-Nan Zhang
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences (CAS), Beijing, 100190, P. R. China
| | - Xi-Qian Yu
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences (CAS), Beijing, 100190, P. R. China
| | - Yu-Guo Guo
- CAS Key Laboratory of Molecular Nanostructure and Nanotechnology, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences (CAS), Beijing, 100190, P. R. China
- School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
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33
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Wang L, Chen B, Ma J, Cui G, Chen L. Reviving lithium cobalt oxide-based lithium secondary batteries-toward a higher energy density. Chem Soc Rev 2018; 47:6505-6602. [DOI: 10.1039/c8cs00322j] [Citation(s) in RCA: 261] [Impact Index Per Article: 43.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
This review summarizes the key challenges, effective modification strategies and perspectives regarding reviving lithium cobalt oxide-based lithium secondary batteries-toward a higher energy density.
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Affiliation(s)
- Longlong Wang
- Qingdao Industrial Energy Storage Research Institute
- Qingdao Institute of Bioenergy and Bioprocess Technology
- Chinese Academy of Sciences
- Qingdao
- P. R. China
| | - Bingbing Chen
- Qingdao Industrial Energy Storage Research Institute
- Qingdao Institute of Bioenergy and Bioprocess Technology
- Chinese Academy of Sciences
- Qingdao
- P. R. China
| | - Jun Ma
- Qingdao Industrial Energy Storage Research Institute
- Qingdao Institute of Bioenergy and Bioprocess Technology
- Chinese Academy of Sciences
- Qingdao
- P. R. China
| | - Guanglei Cui
- Qingdao Industrial Energy Storage Research Institute
- Qingdao Institute of Bioenergy and Bioprocess Technology
- Chinese Academy of Sciences
- Qingdao
- P. R. China
| | - Liquan Chen
- Qingdao Industrial Energy Storage Research Institute
- Qingdao Institute of Bioenergy and Bioprocess Technology
- Chinese Academy of Sciences
- Qingdao
- P. R. China
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