1
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Liang W, Zhao Y, Shi L, Wang Z, Yuan S. Spheroidization: The Impact of Precursor Morphology on Solid-State Lithiation Process for High-Quality Ultrahigh-Nickel Oxide Cathodes. Angew Chem Int Ed Engl 2024; 63:e202407477. [PMID: 38847074 DOI: 10.1002/anie.202407477] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2024] [Indexed: 07/21/2024]
Abstract
Layered oxides with ultrahigh nickel content are considered promising high energy cathode materials. However, their cycle stability is constrained by a series of heterogeneous structural transformations during the complex solid-state lithiation process. By in-depth investigation into the solid-state lithiation process of LiNi0.92Co0.04Mn0.04O2, it is found that the protruded parts on the surface of precursor particles tend to be surrounded by locally excessive LiOH, which promotes the formation of a rigid and denseR 3 - m ${{\rm { R}}\mathrel{\mathop{{\rm { 3}}}\limits^{{\rm -}}}{\rm { m}}}$ shell during the early stage of lithiation process. The shell will hinder the diffusion of lithium and topotactic lithiation within the particles, culminating in spatially heterogeneous intermediates that can impair the electrochemical properties of the cathode material. The spheroidization of the precursor can enhance uniformity in structural evolution during solid-phase lithiation. Ultrahigh nickel cathodes derived from spherical precursors demonstrate high initial discharge specific capacity (234.2 mAh g-1, in the range of 2.7-4.3 V) and capacity retention (89.3 % after 200 cycles), significantly superior to the non-spherical samples. This study not only sheds light on the intricate relationship between precursor shape and structural transformation but also introduces a novel strategy for enhancing cathode performance through precursor spheroidization.
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Affiliation(s)
- Wenbiao Liang
- School of Materials Science and Engineering, Shanghai University, Shanghai, 200444, China
- Research Center of Nanoscience and Nanotechnology, Shanghai University, Shanghai, 200444, China
| | - Yin Zhao
- Research Center of Nanoscience and Nanotechnology, Shanghai University, Shanghai, 200444, China
| | - Liyi Shi
- Research Center of Nanoscience and Nanotechnology, Shanghai University, Shanghai, 200444, China
- Emerging Industries Institute, Shanghai University, Jiaxing, Zhejiang, 314006, China
| | - Zhuyi Wang
- Research Center of Nanoscience and Nanotechnology, Shanghai University, Shanghai, 200444, China
| | - Shuai Yuan
- Research Center of Nanoscience and Nanotechnology, Shanghai University, Shanghai, 200444, China
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2
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Zhong Y, Li Z, Zou J, Pan T, Li P, Yu G, Wang X, Wang S, Zhang J. A mild and efficient closed-loop recycling strategy for spent lithium-ion battery. JOURNAL OF HAZARDOUS MATERIALS 2024; 474:134794. [PMID: 38850929 DOI: 10.1016/j.jhazmat.2024.134794] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2024] [Revised: 05/23/2024] [Accepted: 06/01/2024] [Indexed: 06/10/2024]
Abstract
As lithium metal resource supply and demand stabilize and prices decrease, the efficient recovery of valuable metals other than lithium from spent lithium-ion batteries is receiving increasing attention. Currently, challenges remain in the selective lithium recovery efficiency and the high cost of regenerating valuable metal slag after lithium extraction, particularly for spent ternary cathode materials. To address these challenges, this study introduces a closed-loop recovery process for spent ternary cathode materials, employing sulfur-assisted roasting to achieve efficient lithium extraction and high-value direct regeneration of ternary leaching residues. At moderate temperatures (500 ℃), LiNixCoyMn1-x-yO2 (NCM) materials undergo a directional transformation of lithium to Li2SO4 in synergy with sulfur and oxygen, achieving a lithium leaching extraction rate of 98.91 %. Additionally, the relatively mild reaction conditions preserve the secondary spherical morphology and uniform distribution of NiCoMn-based oxide residue without introducing adverse impurities, ensuring the successful regeneration of high-value NCM cathode materials (R-NCM). The R-NCM material exhibits good discharge capacity (144.3 mA·h/g at 1 C) and relatively stable cycling performance, with a capacity retention rate of 80 % after 150 cycles. This work provides a viable pathway for the efficient and environmental-friendly pyrometallurgical closed-loop recovery of spent lithium-ion batteries.
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Affiliation(s)
- Yuanyuan Zhong
- National Engineering Laboratory for High-Efficiency Recovery of Refractory Nonferrous Metals, School of Metallurgy and Environment, Central South University, Changsha 410083, PR China
| | - Zongrun Li
- National Engineering Laboratory for High-Efficiency Recovery of Refractory Nonferrous Metals, School of Metallurgy and Environment, Central South University, Changsha 410083, PR China
| | - Jingtian Zou
- National Engineering Laboratory for High-Efficiency Recovery of Refractory Nonferrous Metals, School of Metallurgy and Environment, Central South University, Changsha 410083, PR China
| | - Ting Pan
- Zhejiang HeHui Ecological Environment Technology Co., Itd, Jiaxing 314201, PR China
| | - Pengfei Li
- National Engineering Laboratory for High-Efficiency Recovery of Refractory Nonferrous Metals, School of Metallurgy and Environment, Central South University, Changsha 410083, PR China
| | - Guihui Yu
- National Engineering Laboratory for High-Efficiency Recovery of Refractory Nonferrous Metals, School of Metallurgy and Environment, Central South University, Changsha 410083, PR China
| | - Xiaowei Wang
- National Engineering Laboratory for High-Efficiency Recovery of Refractory Nonferrous Metals, School of Metallurgy and Environment, Central South University, Changsha 410083, PR China.
| | - Shubin Wang
- State Environmental Protection Key Laboratory of Urban Ecological Environment Simulation and Protection, South China Institute of Environmental Sciences, Ministry of Ecology and Environment (MEE), Guangzhou 510655, PR China
| | - Jiafeng Zhang
- National Engineering Laboratory for High-Efficiency Recovery of Refractory Nonferrous Metals, School of Metallurgy and Environment, Central South University, Changsha 410083, PR China.
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3
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Qiu B, Xu F, Huang J, Wu Y, Huang K, Gao J, He C, Zhang P, Mi H. Unlocking 4.9 V Quasi-Solid-State Lithium Metal Battery via Solvent Screening and Interfacial Manipulation. NANO LETTERS 2024; 24:8872-8879. [PMID: 38989682 DOI: 10.1021/acs.nanolett.4c01453] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/12/2024]
Abstract
Parlous structure integrity of the cathode and erratic interfacial microdynamics under high potential take responsibility for the degradation of solid-state lithium metal batteries (LMBs). Here, high-voltage LMBs have been operated by modulating the polymer electrolyte intrinsic structure through an intermediate dielectric constant solvent and further inducing the gradient solid-state electrolyte interphase. Benefiting from the chemical adsorption between trimethyl phosphate (TMP) and the cathode, the gradient interphase rich in LiPFxOy and LiF is induced, thereby ensuring the structural integrity and interface compatibility of the commercial LiNi0.8Co0.1Mn0.1O2 (NCM811) cathode even at the 4.9 V cutoff voltage. Eventually, the specific capacity of NCM811|Li full cell based on TMP-modulated polymer electrolyte increased by 27.7% from 4.5 to 4.9 V. Such a universal screening method of electrolyte solvents and its derived electrode interfacial manipulation strategy opens fresh avenues for quasi-solid-state LMBs with high specific energy.
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Affiliation(s)
- Bin Qiu
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, Guangdong 518060, People's Republic of China
| | - Feng Xu
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, Guangdong 518060, People's Republic of China
| | - Jie Huang
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, Guangdong 518060, People's Republic of China
| | - Ying Wu
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, Guangdong 518060, People's Republic of China
| | - Kaiming Huang
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, Guangdong 518060, People's Republic of China
| | - Jinyu Gao
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, Guangdong 518060, People's Republic of China
| | - Chuanxin He
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, Guangdong 518060, People's Republic of China
| | - Peixin Zhang
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, Guangdong 518060, People's Republic of China
| | - Hongwei Mi
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, Guangdong 518060, People's Republic of China
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4
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Chen T, Nguyen A, Zou L, Jiang H, Meng K, Zheng S, Wang D, Wang C, Wang D. Enhancing the Structural Stability and Electrochemical Performance of High-Nickel Cathode Materials through Ti Doping with an Exothermic Non-oxide Precursor. ACS APPLIED MATERIALS & INTERFACES 2024; 16:33285-33293. [PMID: 38961568 DOI: 10.1021/acsami.4c00679] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/05/2024]
Abstract
The foreseeable global cobalt (Co) crisis has driven the demand for cathode materials with less Co dependence, where high-nickel layered oxides are a promising solution due to their high energy density and low cost. However, these materials suffer from poor cycling stability and rapid voltage decay due to lattice displacement and nanostrain accumulation. Here, we introduced an exothermic TiN dopant via a scalable coating method to stabilize LiNi0.917Co0.056Mn0.026O2 (NCM92) materials. The exothermic reaction of TiN conversion generates extra heat during the calcination process on the cathode surface, promotes the lithiation process, and tunes the morphology of the cathode material, resulting in compact and conformal smaller particle sizes to provide better particle integration and lithium diffusion coefficient. Moreover, the Ti dopant substitutes the Ni3+ site to generate stronger Ti-O bonding, leading to higher structural stability and extended cycle life. The Ti-doped NCM (NCM92_TiN) shows a remarkable cycling stability of maintaining 80% capacity retention for 400 cycles, while bare NCM92 can only reach 88 cycles. Furthermore, the NCM92_TiN cathodes demonstrate an enhanced rate capability and achieve a discharge capacity of over 168 mAh g-1 at 5C.
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Affiliation(s)
- Tianhang Chen
- Department of Materials Science and Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Au Nguyen
- Department of Materials Science and Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Lianfeng Zou
- Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, Washington 99354, United States
| | - Heng Jiang
- Department of Mechanical Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Kui Meng
- Department of Mechanical Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Shiyao Zheng
- Department of Mechanical Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Daiwei Wang
- Department of Mechanical Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Chongmin Wang
- Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, Washington 99354, United States
| | - Donghai Wang
- Department of Mechanical Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
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5
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Liang L, Su M, Sun Z, Wang L, Hou L, Liu H, Zhang Q, Yuan C. High-entropy doping promising ultrahigh-Ni Co-free single-crystalline cathode toward commercializable high-energy lithium-ion batteries. SCIENCE ADVANCES 2024; 10:eado4472. [PMID: 38905349 PMCID: PMC11192087 DOI: 10.1126/sciadv.ado4472] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2024] [Accepted: 05/16/2024] [Indexed: 06/23/2024]
Abstract
The development of advanced layered Ni-rich cathodes is essential for high-energy lithium-ion batteries (LIBs). However, the prevalent Ni-rich cathodes are still plagued by inherent issues of chemomechanical and thermal instabilities and limited cycle life. For this, here, we introduce an efficient approach combining single-crystalline (SC) design with in situ high-entropy (HE) doping to engineer an ultrahigh-Ni cobalt-free layered cathode of LiNi0.88Mn0.03Mg0.02Fe0.02Ti0.02Mo0.02Nb0.01O2 (denoted as HE-SC-N88). Thanks to the SC- and HE-doping merits, HE-SC-N88 is featured with a grain-boundary-free and stabilized structure with minimal lattice strain, preventing mechanical degradation, reducing surface parasitic reactions, and mitigating oxygen loss. Accordingly, our HE-SC-N88 cathode demonstrates exceptional electrochemical properties particularly with prolonged cycling stability under strenuous conditions in both half and full cells, and the delayed O loss-induced phase transitions upon heating. More meaningfully, our design of HE doping in redefining the ultrahigh-Ni Co-free SC cathodes will make a tremendous progress toward industrial application of next-generation LIBs.
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Affiliation(s)
- Longwei Liang
- School of Material Science and Engineering, University of Jinan, Jinan 250022, People’s Republic of China
| | - Maoshui Su
- School of Material Science and Engineering, University of Jinan, Jinan 250022, People’s Republic of China
| | - Zhefei Sun
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Materials, Xiamen University, Xiamen, Fujian 361005, China
| | - Lixian Wang
- School of Material Science and Engineering, University of Jinan, Jinan 250022, People’s Republic of China
| | - Linrui Hou
- School of Material Science and Engineering, University of Jinan, Jinan 250022, People’s Republic of China
| | - Haodong Liu
- Center for Memory and Recording Research Building, UC San Diego, La Jolla, CA 92093, USA
| | - Qiaobao Zhang
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Materials, Xiamen University, Xiamen, Fujian 361005, China
| | - Changzhou Yuan
- School of Material Science and Engineering, University of Jinan, Jinan 250022, People’s Republic of China
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6
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Huang M, Wang M, Yang L, Wang Z, Yu H, Chen K, Han F, Chen L, Xu C, Wang L, Shao P, Luo X. Direct Regeneration of Spent Lithium-Ion Battery Cathodes: From Theoretical Study to Production Practice. NANO-MICRO LETTERS 2024; 16:207. [PMID: 38819753 PMCID: PMC11143129 DOI: 10.1007/s40820-024-01434-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2024] [Accepted: 04/30/2024] [Indexed: 06/01/2024]
Abstract
Direct regeneration method has been widely concerned by researchers in the field of battery recycling because of its advantages of in situ regeneration, short process and less pollutant emission. In this review, we firstly analyze the primary causes for the failure of three representative battery cathodes (lithium iron phosphate, layered lithium transition metal oxide and lithium cobalt oxide), targeting at illustrating their underlying regeneration mechanism and applicability. Efficient stripping of material from the collector to obtain pure cathode material has become a first challenge in recycling, for which we report several pretreatment methods currently available for subsequent regeneration processes. We review and discuss emphatically the research progress of five direct regeneration methods, including solid-state sintering, hydrothermal, eutectic molten salt, electrochemical and chemical lithiation methods. Finally, the application of direct regeneration technology in production practice is introduced, the problems exposed at the early stage of the industrialization of direct regeneration technology are revealed, and the prospect of future large-scale commercial production is proposed. It is hoped that this review will give readers a comprehensive and basic understanding of direct regeneration methods for used lithium-ion batteries and promote the industrial application of direct regeneration technology.
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Affiliation(s)
- Meiting Huang
- National-Local Joint Engineering Research Center of Heavy Metals Pollutants Control and Resource Utilization, Nanchang Hangkong University, Nanchang, 330063, People's Republic of China
| | - Mei Wang
- National-Local Joint Engineering Research Center of Heavy Metals Pollutants Control and Resource Utilization, Nanchang Hangkong University, Nanchang, 330063, People's Republic of China
| | - Liming Yang
- National-Local Joint Engineering Research Center of Heavy Metals Pollutants Control and Resource Utilization, Nanchang Hangkong University, Nanchang, 330063, People's Republic of China.
| | - Zhihao Wang
- National-Local Joint Engineering Research Center of Heavy Metals Pollutants Control and Resource Utilization, Nanchang Hangkong University, Nanchang, 330063, People's Republic of China
| | - Haoxuan Yu
- National-Local Joint Engineering Research Center of Heavy Metals Pollutants Control and Resource Utilization, Nanchang Hangkong University, Nanchang, 330063, People's Republic of China
| | - Kechun Chen
- National-Local Joint Engineering Research Center of Heavy Metals Pollutants Control and Resource Utilization, Nanchang Hangkong University, Nanchang, 330063, People's Republic of China
| | - Fei Han
- National-Local Joint Engineering Research Center of Heavy Metals Pollutants Control and Resource Utilization, Nanchang Hangkong University, Nanchang, 330063, People's Republic of China
| | - Liang Chen
- Key Laboratory of Hunan Province for Advanced Carbon-based Functional Materials, School of Chemistry and Chemical Engineering,, Hunan Institute of Science and Technology, Yueyang, 414006, People's Republic of China.
| | - Chenxi Xu
- College of Materials Science and Engineering, Central South University of Forestry and Technology, Changsha, 410004, People's Republic of China
| | - Lihua Wang
- Key Laboratory of Hunan Province for Advanced Carbon-based Functional Materials, School of Chemistry and Chemical Engineering,, Hunan Institute of Science and Technology, Yueyang, 414006, People's Republic of China
- School of Life Science, Jinggangshan University, Ji'an, 343009, People's Republic of China
| | - Penghui Shao
- National-Local Joint Engineering Research Center of Heavy Metals Pollutants Control and Resource Utilization, Nanchang Hangkong University, Nanchang, 330063, People's Republic of China
| | - Xubiao Luo
- National-Local Joint Engineering Research Center of Heavy Metals Pollutants Control and Resource Utilization, Nanchang Hangkong University, Nanchang, 330063, People's Republic of China.
- School of Life Science, Jinggangshan University, Ji'an, 343009, People's Republic of China.
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7
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Park JY, Choi J, Lee S, Jeong JS, Min KS, Lee JS, Kim H, Park JS, Park J, Yoon S. Controlling Surface Structure and Primary Particle Size to Enhance Performance and Reduce Gas Evolution in Lithium- and Manganese-Rich Layered Oxide Cathodes. ACS APPLIED MATERIALS & INTERFACES 2024; 16:22048-22054. [PMID: 38632122 DOI: 10.1021/acsami.4c03009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/19/2024]
Abstract
Practical application of lithium- and manganese-rich layered oxide cathodes has been hindered despite their high performance and low cost owing to high gas evolution accompanying capacity loss even in a conservative voltage window. Here, we control the surface structure and primary particle size of lithium- and manganese-rich layered oxide cathodes not only to enhance the electrochemical performance but also to reduce gas evolution. Sulfur-coated Fm3̅m/R3̅m double reduced surface layers and Mo doping dramatically reduce gas evolution, which entails the improvement of electrochemical performance. With the optimization, we prove that it is competitive enough to conventional high-nickel cathodes in the aspects of gas evolution as well as electrochemical performance in the conservative voltage window of 2.5-4.4 V. Our findings provide invaluable insights on the improvement of electrochemical performance and gas evolution properties in lithium- and manganese-rich layered oxide cathodes.
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Affiliation(s)
- Jae Yeol Park
- Sciences Center, LG Chem Ltd., 30, Magokjungang 10-ro, Gangseo-gu, Seoul 07796, Republic of Korea
| | - Jonghyun Choi
- Battery Materials R&D, LG Chem Ltd., 30, Magokjungang 10-ro, Gangseo-gu, Seoul 07796, Republic of Korea
| | - Sangwon Lee
- Sciences Center, LG Chem Ltd., 30, Magokjungang 10-ro, Gangseo-gu, Seoul 07796, Republic of Korea
| | - Jong Seok Jeong
- Sciences Center, LG Chem Ltd., 30, Magokjungang 10-ro, Gangseo-gu, Seoul 07796, Republic of Korea
| | - Kyung Suk Min
- Sciences Center, LG Chem Ltd., 30, Magokjungang 10-ro, Gangseo-gu, Seoul 07796, Republic of Korea
| | - Jae Sang Lee
- Sciences Center, LG Chem Ltd., 30, Magokjungang 10-ro, Gangseo-gu, Seoul 07796, Republic of Korea
| | - Hoeyeon Kim
- Sciences Center, LG Chem Ltd., 30, Magokjungang 10-ro, Gangseo-gu, Seoul 07796, Republic of Korea
| | - Je Seob Park
- Sciences Center, LG Chem Ltd., 30, Magokjungang 10-ro, Gangseo-gu, Seoul 07796, Republic of Korea
| | - Jungwon Park
- Sciences Center, LG Chem Ltd., 30, Magokjungang 10-ro, Gangseo-gu, Seoul 07796, Republic of Korea
| | - Seokhyun Yoon
- Battery Materials R&D, LG Chem Ltd., 30, Magokjungang 10-ro, Gangseo-gu, Seoul 07796, Republic of Korea
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8
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Zhang Q, Wang Y, Deng Q, Chu Y, Dong P, Chen C, Wang Z, Xia Z, Yang C. In situ and Real-time Monitoring the Chemical and Thermal Evolution of Lithium-ion Batteries with Single-crystalline Ni-rich Layered Oxide Cathode. Angew Chem Int Ed Engl 2024; 63:e202401716. [PMID: 38372050 DOI: 10.1002/anie.202401716] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Revised: 02/17/2024] [Accepted: 02/17/2024] [Indexed: 02/20/2024]
Abstract
High-capacity Ni-rich layered oxides are promising cathode materials for fabrication of lithium-ion batteries (LIBs) with high energy density. However, thermal runaway of LIBs with these cathodes leads to great safety concerns. In this study, single crystalline LiNi0.9Co0.05Mn0.05O2 (NCM-SC) has been prepared and a flexible optical fiber was buried inside the pouch-type LIBs with NCM-SC cathode to in situ study its real-time temperature evolution during charge/discharge process. NCM-SC exhibits an enhanced Li+ ions transportation efficiency and electrode reaction kinetics, which can effectively reduce the generation of polarization heat and mitigate the internal temperature rise of the pouch-type battery. Meanwhile, solid-electrolyte interface (SEI) film decomposition and gas accumulation are effectively alleviated, due to the enhanced thermal stability of SEI film formed on NCM-SC. Moreover, the single crystal architecture can effectively retard layered to spinal and rock-salt phase transition, mitigate the crack formation and structural collapse. Consequently, NCM-SC exhibits an excellent electrochemical performance and enhanced thermal stability.
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Affiliation(s)
- Qimeng Zhang
- Guangzhou Key Laboratory for Surface Chemistry of Energy Materials, New Energy Research Institute, School of Environment and Energy, South China University of Technology, Guangzhou, 510006, P. R. China
| | - Yuzhen Wang
- School of Physics and Optoelectronics, South China University of Technology, Guangzhou, 510641, P. R. China
| | - Qiang Deng
- Guangzhou Key Laboratory for Surface Chemistry of Energy Materials, New Energy Research Institute, School of Environment and Energy, South China University of Technology, Guangzhou, 510006, P. R. China
| | - Youqi Chu
- Guangzhou Key Laboratory for Surface Chemistry of Energy Materials, New Energy Research Institute, School of Environment and Energy, South China University of Technology, Guangzhou, 510006, P. R. China
| | - Pengyuan Dong
- Guangzhou Key Laboratory for Surface Chemistry of Energy Materials, New Energy Research Institute, School of Environment and Energy, South China University of Technology, Guangzhou, 510006, P. R. China
| | - Changdong Chen
- Guangzhou Key Laboratory for Surface Chemistry of Energy Materials, New Energy Research Institute, School of Environment and Energy, South China University of Technology, Guangzhou, 510006, P. R. China
| | - Ziming Wang
- Guangzhou Key Laboratory for Surface Chemistry of Energy Materials, New Energy Research Institute, School of Environment and Energy, South China University of Technology, Guangzhou, 510006, P. R. China
| | - Zhiguo Xia
- School of Physics and Optoelectronics, South China University of Technology, Guangzhou, 510641, P. R. China
| | - Chenghao Yang
- Guangzhou Key Laboratory for Surface Chemistry of Energy Materials, New Energy Research Institute, School of Environment and Energy, South China University of Technology, Guangzhou, 510006, P. R. China
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9
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Butt A, Jamil S, Fasehullah M, Ahmad H, Tufail MK, Sharif R, Ali G. An effective tellurium surface modification strategy to enhance the capacity and rate capability of Ni-rich LiNi 0.8Co 0.1Mn 0.1O 2 cathode material. Heliyon 2024; 10:e28039. [PMID: 38560109 PMCID: PMC10979152 DOI: 10.1016/j.heliyon.2024.e28039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2023] [Revised: 02/15/2024] [Accepted: 03/11/2024] [Indexed: 04/04/2024] Open
Abstract
LiNi0.8Co0.1Mn0.1O2 (NCM) layered oxide is contemplated as an auspicious cathode candidate for commercialized lithium-ion batteries. Regardless, the successful commercial utilization of these materials is impeded by technical issues like structural degradation and poor cyclability. Elemental doping is among the most viable strategies for enhancing electrochemical performance. Herein, the preparation of surface tellurium-doped NCM is done by utilizing the methodology solid-state route at high temperatures. Surface doping of the Te ions leads to structural stability owing to the inactivation of oxygen at the surface via the binding of slabs of transition metal-oxygen. Remarkably, 1 wt% of Te doping in NCM exhibits enhanced electrochemical characteristics with an excellent discharge capacity, i.e., 225.8 mAh/g (0.1C), improved rate-capability of 156 mAh/g (5C) with 82.2% retention in capacity (0.5C) over 100 cycles within 2.7-4.3V as compared to all other prepared electrodes. Hence, the optimal doping of Te is favorable for enhancing capacity, cyclability along with rate capability of NCM.
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Affiliation(s)
- Annam Butt
- Department of Physics, University of Engineering and Technology, Lahore, 54890, Pakistan
| | - Sidra Jamil
- Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, School of Materials and Energy, Southwest University, Chongqing, 400715, PR China
| | - Muhammad Fasehullah
- State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University, Chongqing, 400044, PR China
| | - Haseeb Ahmad
- U.S.-Pakistan Center for Advanced Studies in Energy (USPCAS-E), National University of Science and Technology (NUST), Sector H-12, Islamabad, 44000, Pakistan
| | - Muhammad Khurram Tufail
- College of Materials Science and Engineering, College of Physics, Qingdao University, Qingdao, 266071, PR China
| | - Rehana Sharif
- Department of Physics, University of Engineering and Technology, Lahore, 54890, Pakistan
| | - Ghulam Ali
- U.S.-Pakistan Center for Advanced Studies in Energy (USPCAS-E), National University of Science and Technology (NUST), Sector H-12, Islamabad, 44000, Pakistan
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10
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Wang B, Cai F, Chu C, Fu B, Świerczek K, Li L, Zhao H. Modification of the Ni-Rich Layered Cathode Material by Hf Addition: Synergistic Microstructural Engineering and Surface Stabilization. ACS APPLIED MATERIALS & INTERFACES 2024. [PMID: 38437708 DOI: 10.1021/acsami.3c18865] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/06/2024]
Abstract
The rapid decline of the reversible capacity originating from microcracks and surface structural degradation during cycling is still a serious obstacle to the practical utilization of Ni-rich LiNixCoyAl1-x-yO2 (x ≥ 0.8) cathode materials. In this research, a feasible Hf-doping method is proposed to improve the electrochemical performance of LiNi0.9Co0.08Al0.02O2 (NCA90) through microstructural optimization and structural enhancement. The addition of Hf refines the primary particles of NCA90 and develops them into a short rod shape, making them densely arranged along the radial direction, which increases the secondary particle toughness and reduces their internal porosity. Moreover, Hf-doping stabilizes the layered structure and suppresses the side reactions through the introduction of robust Hf-O bonding. Multiple advantages of Hf-doping allowed significant improvement of the cycling stability of LiNi0.895Co0.08Al0.02Hf0.005O2 (NCA90-Hf0.5), with a reversible capacity retention rate of 95.3% after 100 cycles at 1 C, as compared with only 82.0% for the pristine NCA90. The proposed synergetic strategy combining microstructural engineering and crystal structure enhancement can effectively resolve the inherent capacity fading of Ni-rich layered cathodes, promoting their practical application for next-generation lithium-ion batteries.
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Affiliation(s)
- Bo Wang
- School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China
- Energy Research Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, China
- School of Energy and Power Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, China
| | - Feipeng Cai
- Energy Research Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, China
- School of Energy and Power Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, China
| | - Chenxiao Chu
- Energy Research Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, China
- School of Energy and Power Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, China
| | - Boyang Fu
- Faculty of Energy and Fuels, AGH University of Krakow, al. A. Mickiewicza 30, Krakow 30-059, Poland
| | - Konrad Świerczek
- Faculty of Energy and Fuels, AGH University of Krakow, al. A. Mickiewicza 30, Krakow 30-059, Poland
| | - Linsen Li
- Department of Chemical Engineering, Shanghai Electrochemical Energy Device Research Center (SEED), School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Hailei Zhao
- School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China
- Beijing Municipal Key Laboratory for Advanced Energy Materials and Technologies, Beijing 100083, China
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11
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Zhou Y, Sun M, Cao M, Zeng Y, Su M, Dou A, Hou X, Liu Y. Simultaneously promoting the surface/bulk structural stability of Fe/Mn-based layered cathode for sodium ion batteries. J Colloid Interface Sci 2024; 657:472-481. [PMID: 38070333 DOI: 10.1016/j.jcis.2023.12.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Revised: 11/12/2023] [Accepted: 12/01/2023] [Indexed: 01/02/2024]
Abstract
Layered sodium iron manganese oxide cathodes have attracted great interest owing to their high specific capacity and cost-effective metal resources, while the detrimental phase transitions and surface structural degradation severely limit their commercial applications. In this work, the bulk and surface structure stability of a P2-Na0.67Fe0.5Mn0.5O2 cathode can be synergically enhanced by a one-step Li/Nb co-doping strategy. Structural characterizations reveal that Li doping promotes the formation of P2/O3 biphasic structure and makes the unfavorable P2-OP4 phase transition convert into a smooth solid-solution reaction. Nb doping enhances the mobility of sodium ions and forms strong Nb-O bonds, thereby enhancing the stability of the TMO2 layer structure. In particular, the Nb element induces the surface reorganization of an atomic-scale NaNbO3 coating layer, which could effectively prevent the dissolution of metals and surface side reactions. The synergistic mechanism of enhanced electrochemical performance is proved by multiple characterizations during cycling. As a result, the as-prepared Na0.67Li0.1Fe0.5Mn0.38Nb0.02O2 exhibits improved capacity retention of 85.4 % than raw material (45.7 %) after 100 cycles at 0.5C (1C = 174 mA g-1) within 2.0-4.0 V. This co-regulating strategy provides a promising approach to designing highly stable sodium-ion battery cathodes. Furthermore, a full cell of Na0.67Li0.1Fe0.5Mn0.38Nb0.02O2 with hard carbon displays excellent cycling stability (85.1 % capacity retention after 100 cycles), making its commercial operation possible. This synergistic strategy of biphasic structure and surface reorganization is a critical route to accelerate the application of layer oxide cathodes.
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Affiliation(s)
- Yu Zhou
- School of Material Science and Engineering, Jiangsu University, Zhenjiang 212013, China; Zhejiang New Era Zhongneng Technology Co., Ltd., Shaoxing 312369, China
| | - Molin Sun
- School of Material Science and Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Meilan Cao
- School of Material Science and Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Yijin Zeng
- School of Material Science and Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Mingru Su
- School of Material Science and Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Aichun Dou
- School of Material Science and Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Xiaochuan Hou
- Zhejiang New Era Zhongneng Technology Co., Ltd., Shaoxing 312369, China
| | - Yunjian Liu
- School of Material Science and Engineering, Jiangsu University, Zhenjiang 212013, China.
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12
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Gao X, Hai F, Chen W, Yi Y, Guo J, Xue W, Tang W, Li M. Improving Fast-Charging Capability of High-Voltage Spinel LiNi 0.5 Mn 1.5 O 4 Cathode under Long-Term Cyclability through Co-Doping Strategy. SMALL METHODS 2024:e2301759. [PMID: 38381109 DOI: 10.1002/smtd.202301759] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Revised: 01/27/2024] [Indexed: 02/22/2024]
Abstract
Co-free spinel LiNi0.5 Mn1.5 O4 (LNMO) is emerging as a promising contender for designing next generation high-energy-density and fast-charging Li-ion batteries, due to its high operating voltage and good Li+ diffusion rate. However, further improvement of the Li+ diffusion ability and simultaneous resolution of Mn dissolution still pose significant challenges for their practical application. To tackle these challenges, a simple co-doping strategy is proposed. Compared to Pure-LNMO, the extended lattice in resulting LNMO-SbF sample provides wider Li+ migration channels, ensuring both enhanced Li+ transport kinetics, and lower energy barrier. Moreover, Sb creating structural pillar and stronger TM─F bond together provides a stabilized spinel structure, which stems from the suppression of detrimental irreversible phase transformation during cycling related to Mn dissolution. Benefiting from the synergistic effect, the LNMO-SbF material exhibits a superior reversible capacity (111.4 mAh g-1 at 5C, and 70.2 mAh g-1 after 450 cycles at 10C) and excellent long-term cycling stability at high current density (69.4% capacity retention at 5C after 1000 cycles). Furthermore, the LNMO-SbF//graphite full cell delivers an exceptional retention rate of 96.9% after 300 cycles, and provides a high energy density at 3C even with a high loading. This work provides valuable insight into the design of fast-charging cathode materials for future high energy density lithium-ion batteries.
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Affiliation(s)
- Xin Gao
- Shaanxi Key Laboratory of Energy Chemical Process Intensification, School of Chemical Engineering and Technology, Xi'an Jiaotong University, No. 28, Xianning West Road, Xi'an, Shannxi, 710049, China
| | - Feng Hai
- Shaanxi Key Laboratory of Energy Chemical Process Intensification, School of Chemical Engineering and Technology, Xi'an Jiaotong University, No. 28, Xianning West Road, Xi'an, Shannxi, 710049, China
| | - Wenting Chen
- Shaanxi Key Laboratory of Energy Chemical Process Intensification, School of Chemical Engineering and Technology, Xi'an Jiaotong University, No. 28, Xianning West Road, Xi'an, Shannxi, 710049, China
| | - Yikun Yi
- Shaanxi Key Laboratory of Energy Chemical Process Intensification, School of Chemical Engineering and Technology, Xi'an Jiaotong University, No. 28, Xianning West Road, Xi'an, Shannxi, 710049, China
| | - Jingyu Guo
- Shaanxi Key Laboratory of Energy Chemical Process Intensification, School of Chemical Engineering and Technology, Xi'an Jiaotong University, No. 28, Xianning West Road, Xi'an, Shannxi, 710049, China
| | - Weicheng Xue
- Shaanxi Key Laboratory of Energy Chemical Process Intensification, School of Chemical Engineering and Technology, Xi'an Jiaotong University, No. 28, Xianning West Road, Xi'an, Shannxi, 710049, China
| | - Wei Tang
- Shaanxi Key Laboratory of Energy Chemical Process Intensification, School of Chemical Engineering and Technology, Xi'an Jiaotong University, No. 28, Xianning West Road, Xi'an, Shannxi, 710049, China
| | - Mingtao Li
- Shaanxi Key Laboratory of Energy Chemical Process Intensification, School of Chemical Engineering and Technology, Xi'an Jiaotong University, No. 28, Xianning West Road, Xi'an, Shannxi, 710049, China
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13
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Qiao L, You Q, Wu X, Min H, Liu X, Yang H. Mo Doping to Modify Lattice and Morphology of the LiNi 0.9Co 0.05Mn 0.05O 2 Cathode toward High-Efficient Lithium-Ion Storage. ACS APPLIED MATERIALS & INTERFACES 2024; 16:4772-4783. [PMID: 38243846 DOI: 10.1021/acsami.3c16475] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/22/2024]
Abstract
The Ni-rich Co-poor layered cathode (LiNixCoyMn1-x-yO2, x ≥ 0.9) is a candidate for the next-generation lithium-ion batteries due to its high specific capacity and low cost. However, the inherent structural instability and slow kinetics of Li+ migration hinder their large-scale application. Mo doping is proposed to enhance the crystal structure stability of LiNi0.9Co0.05Mn0.05O2 and to ensure the preservation of the spherical secondary particles after the cycle. The characterization results indicate that Mo doping not only significantly relieves the lattice strain accompanied by H2 → H3 phase transition but also alleviates particle stress accumulation to avoid pulverization. The Mo-modification allows the generation of uniform fine primary particulates and further agglomeration into the smooth secondary particles to inhibit electrolyte penetration. Hence, the Mo-modified sample NCM90-1%Mo displays an excellent capacity retention of 85.9% after 200 cycles at 0.5 C current density, which is 23.8% higher than that of the pristine NCM90. In addition, with the expansion of the Li slab to accelerate Li+ diffusion and the fine primary particles to shorten the Li+ pathway, the NCM90-1%Mo sample exhibits a high discharge capacity of 150 mAh g-1 at 5 C current density. This work provides a new thought for the design and construction of high-capacity cathode materials for the next-generation lithium-ion batteries.
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Affiliation(s)
- Liang Qiao
- College of Materials Science and Engineering, Nanjing Tech University, Nanjing 211816, Jiangsu, China
| | - Qi You
- College of Materials Science and Engineering, Nanjing Tech University, Nanjing 211816, Jiangsu, China
| | - Xinyuan Wu
- College of Materials Science and Engineering, Nanjing Tech University, Nanjing 211816, Jiangsu, China
| | - Huihua Min
- Electron Microscope Lab, Nanjing Forestry University, Nanjing 210037, Jiangsu, China
| | - Xiaomin Liu
- College of Materials Science and Engineering, Nanjing Tech University, Nanjing 211816, Jiangsu, China
| | - Hui Yang
- College of Materials Science and Engineering, Nanjing Tech University, Nanjing 211816, Jiangsu, China
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