1
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Ahaliabadeh Z, Miikkulainen V, Mäntymäki M, Mousavihashemi S, Yao L, Jiang H, Huotari S, Kankaanpää T, Kallio T, Colalongo M. Surface and Grain Boundary Coating for Stabilizing LiNi 0.8Mn 0.1Co 0.1O 2 Based Electrodes. CHEMSUSCHEM 2024:e202400272. [PMID: 38894598 DOI: 10.1002/cssc.202400272] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2024] [Revised: 05/31/2024] [Accepted: 06/14/2024] [Indexed: 06/21/2024]
Abstract
The widespread use of high-capacity Ni-rich layered oxides such as LiNi0.8Mn0.1Co0.1O2 (NMC811), in lithium-ion batteries is hindered due to practical capacity loss and reduced working voltage during operation. Aging leads to defective NMC811 particles, affecting electrochemical performance. Surface modification offers a promising approach to improve cycle life. Here, we introduce an amorphous lithium titanate (LTO) coating via atomic layer deposition (ALD), not only covering NMC811 surfaces but also penetrating cavities and grain boundaries. As NMC811 electrodes suffer from low structural stability during charge and discharge, We combined electrochemistry, operando X-ray diffraction (XRD), and dilatometry to understand structural changes and the coating protective effects. XRD reveals significant structural evolution during delithiation for uncoated NMC811. The highly reversible phase change in coated NMC811 highlights enhanced bulk structure stability. The LTO coating retards NMC811 degradation, boosting capacity retention from 86 % to 93 % after 140 cycles. This study underscores the importance of grain boundary engineering for Ni-rich layered oxide electrode stability and the interplay of chemical and mechanical factors in battery aging.
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Affiliation(s)
- Zahra Ahaliabadeh
- Department of Chemistry and Materials Science (CMAT), School of Chemical Engineering, Aalto University, Espoo, 02150, Finland
| | - Ville Miikkulainen
- Department of Chemistry and Materials Science (CMAT), School of Chemical Engineering, Aalto University, Espoo, 02150, Finland
| | - Miia Mäntymäki
- Department of Chemistry, University of Helsinki, Helsinki, 00014, Finland
| | - Seyedabolfazl Mousavihashemi
- Department of Chemistry and Materials Science (CMAT), School of Chemical Engineering, Aalto University, Espoo, 02150, Finland
| | - Lide Yao
- Department of Applied Physics, School of Science, Aalto University, Espoo, 02150, Finland
| | - Hua Jiang
- Department of Applied Physics, School of Science, Aalto University, Espoo, 02150, Finland
| | - Simo Huotari
- Department of Physics, University of Helsinki, Helsinki, 00014, Finland
| | | | - Tanja Kallio
- Department of Chemistry and Materials Science (CMAT), School of Chemical Engineering, Aalto University, Espoo, 02150, Finland
| | - Mattia Colalongo
- Department of Chemistry and Materials Science (CMAT), School of Chemical Engineering, Aalto University, Espoo, 02150, Finland
- European Synchrotron Radiation Facility, 71 Avenue des Martyrs, 38000, Grenoble, France
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2
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Zhou J, Wei B, Liu M, Qin Y, Cheng H, Lyu Y, Liu Y, Guo B. An effective co-modification strategy to enhance the cycle stability of LiNi 0.8Co 0.1Mn 0.1O 2 for lithium-ion batteries. RSC Adv 2023; 13:34194-34199. [PMID: 38020016 PMCID: PMC10664004 DOI: 10.1039/d3ra04145j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Accepted: 11/16/2023] [Indexed: 12/01/2023] Open
Abstract
Ni-rich cathode materials suffer from rapid capacity fading caused by interface side reactions and bulk structure degradation. Previous studies show that Co is conducive to bulk structure stability and sulfate can react with the residual lithium (LiOH and Li2CO3) on the surface of Ni-rich cathode materials and form a uniform coating to suppress the side reactions between the cathode and electrolyte. Here, CoSO4 is utilized as a modifier for LiNi0.8Co0.1Mn0.1O2 (NCM811) cathode materials. It reacts with the residual lithium on the surface of the NCM811 cathode to form Li-ion conductive Li2SO4 protective layers and Co doping simultaneously during the high-temperature sintering process, which can suppress the side reactions between the Ni-rich cathode and electrolyte and effectively prevent the structural transformation. As a result, the co-modified NCM811 cathode with 3 wt% CoSO4 exhibits an improved cycling performance of 81.1% capacity retention after 200 cycles at 1C and delivers an excellent rate performance at 5C of 187.4 mA h g-1, which is 10.2% higher than that of the pristine NCM811 cathode.
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Affiliation(s)
- Jingjing Zhou
- Materials Genome Institute, Shanghai University, Shanghai 99 Shangda Road Baoshan District Shanghai P. R. China
| | - Bingxin Wei
- Wuhan Institute of Marine Electric Propulsion Wuhan 430064 P. R. China
| | - Meng Liu
- Materials Genome Institute, Shanghai University, Shanghai 99 Shangda Road Baoshan District Shanghai P. R. China
| | - Yinping Qin
- Materials Genome Institute, Shanghai University, Shanghai 99 Shangda Road Baoshan District Shanghai P. R. China
| | - Hongyu Cheng
- Materials Genome Institute, Shanghai University, Shanghai 99 Shangda Road Baoshan District Shanghai P. R. China
| | - Yingchun Lyu
- Materials Genome Institute, Shanghai University, Shanghai 99 Shangda Road Baoshan District Shanghai P. R. China
| | - Yang Liu
- Materials Genome Institute, Shanghai University, Shanghai 99 Shangda Road Baoshan District Shanghai P. R. China
- A Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Nankai University Tianjin 300071 P. R. China
- Key Laboratory of Optoelectronic Chemical Materials and Devices of Ministry of Education, Jianghan University No. 8, Sanjiaohu Rd. Wuhan Hubei 430056 P. R. China
| | - Bingkun Guo
- Materials Genome Institute, Shanghai University, Shanghai 99 Shangda Road Baoshan District Shanghai P. R. China
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3
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Zhang X, Xiong J, Chang F, Xu Z, Wang Z, Hall P, Cheng YJ, Xia Y. Sol/Antisolvent Coating for High Initial Coulombic Efficiency and Ultra-stable Mechanical Integrity of Ni-Rich Cathode Materials. ACS APPLIED MATERIALS & INTERFACES 2022; 14:45272-45288. [PMID: 36166735 DOI: 10.1021/acsami.2c10613] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
The Ni-rich cathode holds great promise for high energy density lithium-ion batteries because of its high capacity and operating voltage. However, crucial problems such as cation disorder, structural degradation, side reactions, and microcracks become serious with increasing nickel content. Herein, a novel and facile sol/antisolvent coating modification of Ni-rich layered oxide LiNi0.85Co0.1Mn0.05O2 (NCM) is developed where we use ethanol to disperse the nanosized LiBO2 to form the sol and adopt tetrahydrofuran (THF) as antisolvent to prepare the cluster of nanoparticles to be coated on the surface of NCM. The coating thickness can be tuned through the THF addition amount. The LiBO2 nanorod deposition is formed as well over the crack of the NCM cathode, likely acting as a patch to repair the original defect of the intrinsic crack. The uniform LiBO2 nanospherical particle coating together with LiBO2 nanorod wrapping provides a double protection against electrolytes. Compared with the raw material, LiBO2-coated LiNi0.85Co0.1Mn0.05O2 (LiBO2-coated NCM) exhibits a high initial Coulombic efficiency of 90.3% at 0.2 C between 2.8 and 4.3 V vs Li+/Li, a superior rate capability, enhanced fast charge property at 3 C, and restricted microcrack formation. This simple in-site modification and repairing technology guarantees a good mechanical integrity of the polycrystalline Ni-rich cathode.
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Affiliation(s)
- Xiaoqing Zhang
- Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences (CAS), Ningbo 315201, PR China
- Department of Chemical and Environmental Engineering, Faculty of Science and Engineering, University of Nottingham, Ningbo 315100, PR China
| | - Jianwei Xiong
- Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences (CAS), Ningbo 315201, PR China
| | - Fengzhen Chang
- Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences (CAS), Ningbo 315201, PR China
| | - Zhuijun Xu
- Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences (CAS), Ningbo 315201, PR China
| | - Zheng Wang
- Department of Chemical and Environmental Engineering, Faculty of Science and Engineering, University of Nottingham, Ningbo 315100, PR China
| | - Philip Hall
- Department of Chemical and Environmental Engineering, Faculty of Science and Engineering, University of Nottingham, Ningbo 315100, PR China
- Nottingham Ningbo China Beacons of Excellence Research and Innovation Institute, Ningbo 315100, PR China
| | - Ya-Jun Cheng
- Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences (CAS), Ningbo 315201, PR China
| | - Yonggao Xia
- Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences (CAS), Ningbo 315201, PR China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, PR China
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4
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Han A, Tian R, Fang L, Wan F, Hu X, Zhao Z, Tu F, Song D, Zhang X, Yang Y. A Low-Cost Liquid-Phase Method of Synthesizing High-Performance Li 6PS 5Cl Solid-Electrolyte. ACS APPLIED MATERIALS & INTERFACES 2022; 14:30824-30838. [PMID: 35785989 DOI: 10.1021/acsami.2c06075] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Li6PS5Cl is an extensively studied sulfide-solid-electrolyte for developing all-solid-state lithium batteries. However, its practical application is hindered by the high cost of its raw material lithium sulfide (Li2S), the difficulty in its massive production, and its substandard performance. Herein we report an economically viable and scalable method, denoted as "de novo liquid phase method", which enables in synthesizing high-performance Li6PS5Cl without using commercial Li2S but instead in situ making Li2S from cheap materials of lithium chloride (LiCl) and sodium sulfide. LiCl, a raw material needed for making both Li2S and Li6PS5Cl, can be added at a full-scale in the beginning and unrequired to separate when making the intermediate Li3PS4. Such a consecutive feature makes this method time-efficient; and the excess amount of LiCl in the step of making Li2S also facilitates removing the byproduct of sodium chloride via the common ion effect. The materials cost of this method for Li6PS5Cl is ∼ $55/kg, comparable with the practical need of $50/kg. Moreover, the obtained Li6PS5Cl shows high ionic conductivity and outstanding cyclability in full battery tests, that is, ∼2 mS/cm and >99.8% retention for 400+ cycles at 1 C, respectively. Thus, this innovative method is expected to pave the way to develop practical sulfide-solid-electrolytes for all-solid-state lithium batteries.
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Affiliation(s)
- Aiguo Han
- Institute of Molecular Plus, Department of Chemistry, Tianjin University, Tianjin 300072, China
| | - Rongzheng Tian
- School of Materials Science and Engineering, Tianjin University of Technology, Tianjin 300384, China
| | - Liran Fang
- Institute of Molecular Plus, Department of Chemistry, Tianjin University, Tianjin 300072, China
| | - Fengming Wan
- Institute of Molecular Plus, Department of Chemistry, Tianjin University, Tianjin 300072, China
| | - Xiaohu Hu
- Institute of Molecular Plus, Department of Chemistry, Tianjin University, Tianjin 300072, China
| | - Zixiang Zhao
- School of Materials Science and Engineering, Tianjin University of Technology, Tianjin 300384, China
| | - Fangyuan Tu
- School of Materials Science and Engineering, Tianjin University of Technology, Tianjin 300384, China
| | - Dawei Song
- School of Materials Science and Engineering, Tianjin University of Technology, Tianjin 300384, China
| | - Xin Zhang
- Institute of Molecular Plus, Department of Chemistry, Tianjin University, Tianjin 300072, China
| | - Yongan Yang
- Institute of Molecular Plus, Department of Chemistry, Tianjin University, Tianjin 300072, China
- Haihe Laboratory of Sustainable Chemical Transformations, Tianjin 300192, China
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5
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Ma Q, Wang Y, Lai F, Meng J, Dmytro S, Zhou L, Yang M, Zhang Q, Zhong S. Induction and Maintenance of Local Structural Durability for High-Energy Nickel-Rich Layered Oxides. SMALL METHODS 2022; 6:e2200255. [PMID: 35522015 DOI: 10.1002/smtd.202200255] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Revised: 03/26/2022] [Indexed: 06/14/2023]
Abstract
Nickel-rich layered oxides are one of the most promising cathode candidates for next-generation high-energy-density lithium-ion batteries. However, due to similar ion radius between Li+ and Ni2+ (0.76 and 0.69 Å), the Li+ /Ni2+ mixing phenomenon seriously hinders the migration of Li+ and increases kinetic barrier of Li+ diffusion, resulting in limited rate capability. In this work, the introduction of Ce4+ to effectively improve electrochemical properties of Ni-rich cathode materials is proposed. The LiNi0.8 Co0.15 Al0.05 O2 (LNCA) is modified with an additional precursor oxidization process using an appropriate amount of (NH4 )2 Ce(NO3 )6 . The Ce(NO3 )6 2- easily obtains electrons and generates reduction reactions, while Ni(OH)2 is prone to electron loss and oxidation reaction. The participation of (NH4 )2 Ce(NO3 )6 can promote the oxidation of Ni2+ to Ni3+ , thereby reducing the Li+ /Ni2+ mixing and increasing the structural stability of LNCA samples. Ce4+ cation doping can impede Li+ /Ni2+ mixing of LNCA cathode materials upon the long-term cycles. Both rate performance and long-term cyclability of Li[Ni0.8 Co0.15 Al0.05 ]0.97 Ce0.03 O2 (LNCA-Ce0.03) sample are significantly improved. Besides, a practical pouch cell based on the cathode presents sufficient gravimetric energy density (≈300 Wh kg-1 ) and cycling stability (capacity retention of 81.3% after 500 cycles at 1 C).
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Affiliation(s)
- Quanxin Ma
- Key Laboratory of Power Battery and Materials, Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou, 341000, China
- Far East Battery, FEB Research Institute, Yichun, 336000, China
| | - Yuqin Wang
- Key Laboratory of Power Battery and Materials, Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou, 341000, China
| | - Fulin Lai
- Key Laboratory of Power Battery and Materials, Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou, 341000, China
| | - Junxia Meng
- School of Physics and Electronics, Gannan Normal University, Ganzhou, 341000, China
| | - Sydorov Dmytro
- Key Laboratory of Power Battery and Materials, Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou, 341000, China
- The Institute of Bioorganic Chemistry and Petrochemistry, National Academy of Sciences of Ukraine, Murmanska, 1, Kyiv-94, 02094, Ukraine
| | - Lingfei Zhou
- Key Laboratory of Power Battery and Materials, Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou, 341000, China
| | - Mengqian Yang
- Key Laboratory of Power Battery and Materials, Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou, 341000, China
| | - Qian Zhang
- Key Laboratory of Power Battery and Materials, Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou, 341000, China
| | - Shengwen Zhong
- Key Laboratory of Power Battery and Materials, Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou, 341000, China
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6
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Chu YQ, Hu Y, Lai AJ, Pan QC, Zheng FH, Huang YG, Wang HQ, Li QY. Enhancement structural stability of LiNi0.8Co0.1Mn0.1O2 via S2− doping combine with Li2SO4 coating co-modification. Electrochim Acta 2022. [DOI: 10.1016/j.electacta.2022.139966] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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7
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Chen S, Wang Z, Chen L, Liu N, Li N, Lu Y, Cao D, Fu N, Li Q, Su Y, Wu F. Sublimated Se‐Induced Formation of Dual‐Conductive Surface Layers for High‐Performance Ni‐Rich Layered Cathodes. ChemElectroChem 2021. [DOI: 10.1002/celc.202100693] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Shi Chen
- School of Materials Science and Engineering Beijing Institute of Technology Beijing 100081 China
| | - Zirun Wang
- School of Materials Science and Engineering Beijing Institute of Technology Beijing 100081 China
- Chongqing Innovation Center Beijing Institute of Technology Chongqing 401120 China
| | - Lai Chen
- School of Materials Science and Engineering Beijing Institute of Technology Beijing 100081 China
- Chongqing Innovation Center Beijing Institute of Technology Chongqing 401120 China
| | - Na Liu
- School of Materials Science and Engineering Beijing Institute of Technology Beijing 100081 China
- Chongqing Innovation Center Beijing Institute of Technology Chongqing 401120 China
| | - Ning Li
- School of Materials Science and Engineering Beijing Institute of Technology Beijing 100081 China
- Chongqing Innovation Center Beijing Institute of Technology Chongqing 401120 China
| | - Yun Lu
- School of Materials Science and Engineering Beijing Institute of Technology Beijing 100081 China
- Chongqing Innovation Center Beijing Institute of Technology Chongqing 401120 China
| | - Duanyun Cao
- School of Materials Science and Engineering Beijing Institute of Technology Beijing 100081 China
- Chongqing Innovation Center Beijing Institute of Technology Chongqing 401120 China
| | - Nuoting Fu
- School of Automation Beijing Institute of Technology Beijing 100081 China
| | - Qing Li
- School of Materials Science and Engineering Beijing Institute of Technology Beijing 100081 China
- Chongqing Innovation Center Beijing Institute of Technology Chongqing 401120 China
| | - Yuefeng Su
- School of Materials Science and Engineering Beijing Institute of Technology Beijing 100081 China
- Chongqing Innovation Center Beijing Institute of Technology Chongqing 401120 China
| | - Feng Wu
- School of Materials Science and Engineering Beijing Institute of Technology Beijing 100081 China
- Chongqing Innovation Center Beijing Institute of Technology Chongqing 401120 China
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8
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Shen Y, Xue H, Wang S, Wang Z, Zhang D, Yin D, Wang L, Cheng Y. A highly promising high-nickel low-cobalt lithium layered oxide cathode material for high-performance lithium-ion batteries. J Colloid Interface Sci 2021; 597:334-344. [DOI: 10.1016/j.jcis.2021.04.008] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Revised: 04/02/2021] [Accepted: 04/03/2021] [Indexed: 10/21/2022]
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9
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Yi H, Tan L, Xia L, Li L, Li H, Liu Z, Wang C, Zhao Z, Duan J, Chen Z. Ce-modified LiNi0.5Co0.2Mn0.3O2 cathode with enhanced surface and structural stability for Li ion batteries. ADV POWDER TECHNOL 2021. [DOI: 10.1016/j.apt.2021.05.012] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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10
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Li T, Li D, Zhang Q, Gao J, Kong X, Fan X, Gou L. Preparation and Electrochemical Performance of Macroporous Ni-rich LiNi0.8Co0.1Mn0.1O2 Cathode Material. ACTA CHIMICA SINICA 2021. [DOI: 10.6023/a21010019] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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11
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Enhanced interfacial reaction interface stability of Ni-rich cathode materials by fabricating dual-modified layer coating for lithium-ion batteries. Electrochim Acta 2021. [DOI: 10.1016/j.electacta.2020.137476] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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12
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Lu C, Sun J, Peng J, Pang H, Ding Y, Jiang Y, Li F, Jiang Y. Preparation of ultrathin carbon-coated CdS nanobelts for advanced Li and Na storage. NANOTECHNOLOGY 2020; 31:505403. [PMID: 33021223 DOI: 10.1088/1361-6528/abb42d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
In this paper, we report a simple hydrothermal method for preparation of ultrathin carbon-coated CdS (CdS@C) nanobelts. The CdS@C nanobelts show superior electrochemical properties as an anode material for Li-ion batteries. The optimized CdS@C composites deliver a reversible capacity around 910 mAhg-1 and 48 mAhg-1 at 0.1 Ag-1 and 30.0 Ag-1, respectively. Moreover, the optimized nanobelts are also potential materials for Na storage. A stable capacity around 240 mAhg-1 is obtained at 0.1 Ag-1, even after 100 cycles.
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Affiliation(s)
- Cai Lu
- Institute of Rheological Mechanics, Xiangtan University, Xiangtan 411105, People's Republic of China
| | - Jinlei Sun
- Institute of Rheological Mechanics, Xiangtan University, Xiangtan 411105, People's Republic of China
| | - Jinfeng Peng
- School of Mechanical Engineering, Xiangtan University, Xiangtan 411105, People's Republic of China
| | - Huaji Pang
- School of Chemistry, Xiangtan University, Xiangtan 411105, People's Republic of China
| | - Yanhuai Ding
- Institute of Rheological Mechanics, Xiangtan University, Xiangtan 411105, People's Republic of China
| | - Yunhong Jiang
- Institute of Rheological Mechanics, Xiangtan University, Xiangtan 411105, People's Republic of China
| | - Feng Li
- Institute of Rheological Mechanics, Xiangtan University, Xiangtan 411105, People's Republic of China
| | - Yong Jiang
- Institute of Rheological Mechanics, Xiangtan University, Xiangtan 411105, People's Republic of China
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13
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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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14
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Zhong F, Yang M, Ding M, Jia C. Organic Electroactive Molecule-Based Electrolytes for Redox Flow Batteries: Status and Challenges of Molecular Design. Front Chem 2020; 8:451. [PMID: 32637392 PMCID: PMC7317337 DOI: 10.3389/fchem.2020.00451] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Accepted: 04/30/2020] [Indexed: 12/16/2022] Open
Abstract
This is a critical review of the advances in the molecular design of organic electroactive molecules, which are the key components for redox flow batteries (RFBs). As a large-scale energy storage system with great potential, the redox flow battery has been attracting increasing attention in the last few decades. The redox molecules, which bridge the interconversion between chemical energy and electric energy for RFBs, have generated wide interest in many fields such as energy storage, functional materials, and synthetic chemistry. The most widely used electroactive molecules are inorganic metal ions, most of which are scarce and expensive, hindering the broad deployment of RFBs. Thus, there is an urgent motivation to exploit novel cost-effective electroactive molecules for the commercialization of RFBs. RFBs based on organic electroactive molecules such as quinones and nitroxide radical derivatives have been studied and have been a hot topic of research due to their inherent merits in the last decade. However, few comprehensive summaries regarding the molecular design of organic electroactive molecules have been published. Herein, the latest progress and challenges of organic electroactive molecules in both non-aqueous and aqueous RFBs are reviewed, and future perspectives are put forward for further developments of RFBs as well as other electrochemical energy storage systems.
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Affiliation(s)
- Fangfang Zhong
- College of Materials Science and Engineering, Changsha University of Science & Technology, Changsha, China
| | - Minghui Yang
- College of Materials Science and Engineering, Changsha University of Science & Technology, Changsha, China
| | - Mei Ding
- College of Materials Science and Engineering, Changsha University of Science & Technology, Changsha, China.,National Engineering Laboratory of Highway Maintenance Technology, School of Traffic & Transportation Engineering, Changsha University of Science & Technology, Changsha, China
| | - Chuankun Jia
- College of Materials Science and Engineering, Changsha University of Science & Technology, Changsha, China.,National Engineering Laboratory of Highway Maintenance Technology, School of Traffic & Transportation Engineering, Changsha University of Science & Technology, Changsha, China.,Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Nankai University, Tianjin, China
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15
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Chen H, Xiao L, Chen H, Zhu Y, Xiang K, Liao H. Construction of core-shell Li3PO4@LiNi0·5Co0·2Mn0·3O2 cathode with improved cycling stability for lithium ion batteries. Electrochim Acta 2020. [DOI: 10.1016/j.electacta.2020.136142] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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16
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Jung SK, Hwang I, Chang D, Park KY, Kim SJ, Seong WM, Eum D, Park J, Kim B, Kim J, Heo JH, Kang K. Nanoscale Phenomena in Lithium-Ion Batteries. Chem Rev 2019; 120:6684-6737. [PMID: 31793294 DOI: 10.1021/acs.chemrev.9b00405] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The electrochemical properties and performances of lithium-ion batteries are primarily governed by their constituent electrode materials, whose intrinsic thermodynamic and kinetic properties are understood as the determining factor. As a part of complementing the intrinsic material properties, the strategy of nanosizing has been widely applied to electrodes to improve battery performance. It has been revealed that this not only improves the kinetics of the electrode materials but is also capable of regulating their thermodynamic properties, taking advantage of nanoscale phenomena regarding the changes in redox potential, solid-state solubility of the intercalation compounds, and reaction paths. In addition, the nanosizing of materials has recently enabled the discovery of new energy storage mechanisms, through which unexplored classes of electrodes could be introduced. Herein, we review the nanoscale phenomena discovered or exploited in lithium-ion battery chemistry thus far and discuss their potential implications, providing opportunities to further unveil uncharted electrode materials and chemistries. Finally, we discuss the limitations of the nanoscale phenomena presently employed in battery applications and suggest strategies to overcome these limitations.
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Affiliation(s)
- Sung-Kyun Jung
- Department of Materials Science and Engineering, Research Institute of Advanced Materials (RIAM), Seoul National University, Gwanak-ro 1, Gwanak-gu, Seoul 151-742, Republic of Korea.,Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul National University, Gwanak-ro 1, Gwanak-gu, Seoul 151-742, Republic of Korea
| | - Insang Hwang
- Department of Materials Science and Engineering, Research Institute of Advanced Materials (RIAM), Seoul National University, Gwanak-ro 1, Gwanak-gu, Seoul 151-742, Republic of Korea
| | - Donghee Chang
- Department of Materials Science and Engineering, Research Institute of Advanced Materials (RIAM), Seoul National University, Gwanak-ro 1, Gwanak-gu, Seoul 151-742, Republic of Korea
| | - Kyu-Young Park
- Department of Materials Science and Engineering, Research Institute of Advanced Materials (RIAM), Seoul National University, Gwanak-ro 1, Gwanak-gu, Seoul 151-742, Republic of Korea
| | - Sung Joo Kim
- Department of Materials Science and Engineering, Research Institute of Advanced Materials (RIAM), Seoul National University, Gwanak-ro 1, Gwanak-gu, Seoul 151-742, Republic of Korea
| | - Won Mo Seong
- Department of Materials Science and Engineering, Research Institute of Advanced Materials (RIAM), Seoul National University, Gwanak-ro 1, Gwanak-gu, Seoul 151-742, Republic of Korea
| | - Donggun Eum
- Department of Materials Science and Engineering, Research Institute of Advanced Materials (RIAM), Seoul National University, Gwanak-ro 1, Gwanak-gu, Seoul 151-742, Republic of Korea
| | - Jooha Park
- Department of Materials Science and Engineering, Research Institute of Advanced Materials (RIAM), Seoul National University, Gwanak-ro 1, Gwanak-gu, Seoul 151-742, Republic of Korea
| | - Byunghoon Kim
- Department of Materials Science and Engineering, Research Institute of Advanced Materials (RIAM), Seoul National University, Gwanak-ro 1, Gwanak-gu, Seoul 151-742, Republic of Korea
| | - Jihyeon Kim
- Department of Materials Science and Engineering, Research Institute of Advanced Materials (RIAM), Seoul National University, Gwanak-ro 1, Gwanak-gu, Seoul 151-742, Republic of Korea
| | - Jae Hoon Heo
- Department of Materials Science and Engineering, Research Institute of Advanced Materials (RIAM), Seoul National University, Gwanak-ro 1, Gwanak-gu, Seoul 151-742, Republic of Korea
| | - Kisuk Kang
- Department of Materials Science and Engineering, Research Institute of Advanced Materials (RIAM), Seoul National University, Gwanak-ro 1, Gwanak-gu, Seoul 151-742, Republic of Korea.,Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul National University, Gwanak-ro 1, Gwanak-gu, Seoul 151-742, Republic of Korea.,Institute of Engineering Research, College of Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 151-742, Republic of Korea
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17
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Chen LL, Yang H, Jing MX, Han C, Chen F, Hu XY, Yuan WY, Yao SS, Shen XQ. A novel all-fiber-based LiFePO 4/Li 4Ti 5O 12 battery with self-standing nanofiber membrane electrodes. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2019; 10:2229-2237. [PMID: 31807408 PMCID: PMC6880811 DOI: 10.3762/bjnano.10.215] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/13/2019] [Accepted: 11/08/2019] [Indexed: 06/10/2023]
Abstract
Electrodes with high conductivity and flexibility are crucial to the development of flexible lithium-ion batteries. In this study, three-dimensional (3D) LiFePO4 and Li4Ti5O12 fiber membrane materials were prepared through electrospinning and directly used as self-standing electrodes for lithium-ion batteries. The structure and morphology of the fibers, and the electrochemical performance of the electrodes and the full battery were characterized. The results show that the LiFePO4 and Li4Ti5O12 fiber membrane electrodes exhibit good rate and cycle performance. In particular, the all-fiber-based gel-state battery composed of LiFePO4 and Li4Ti5O12 fiber membrane electrodes can be charged/discharged for 800 cycles at 1C with a retention capacity of more than 100 mAh·g-1 and a coulombic efficiency close to 100%. The good electrochemical performance is attributed to the high electronic and ionic conductivity provided by the 3D network structure of the self-standing electrodes. This design and preparation method for all-fiber-based lithium-ion batteries provides a novel strategy for the development of high-performance flexible batteries.
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Affiliation(s)
- Li-li Chen
- Institute for Advanced Materials, School of Materials Science & Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Hua Yang
- Institute for Advanced Materials, School of Materials Science & Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Mao-xiang Jing
- Institute for Advanced Materials, School of Materials Science & Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Chong Han
- Institute for Advanced Materials, School of Materials Science & Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Fei Chen
- Institute for Advanced Materials, School of Materials Science & Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Xin-yu Hu
- Institute for Advanced Materials, School of Materials Science & Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Wei-yong Yuan
- Institute of Clean Energy & Advanced Material, Southwest University, Chongqing, 400715, China
| | - Shan-shan Yao
- Institute for Advanced Materials, School of Materials Science & Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Xiang-qian Shen
- Institute for Advanced Materials, School of Materials Science & Engineering, Jiangsu University, Zhenjiang 212013, China
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18
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Degradation Mechanisms and Mitigation Strategies of Nickel-Rich NMC-Based Lithium-Ion Batteries. ELECTROCHEM ENERGY R 2019. [DOI: 10.1007/s41918-019-00053-3] [Citation(s) in RCA: 213] [Impact Index Per Article: 42.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Abstract
The demand for lithium-ion batteries (LIBs) with high mass-specific capacities, high rate capabilities and long-term cyclabilities is driving the research and development of LIBs with nickel-rich NMC (LiNixMnyCo1−x−yO2, $$x \geqslant 0.5$$x⩾0.5) cathodes and graphite (LixC6) anodes. Based on this, this review will summarize recently reported and widely recognized studies of the degradation mechanisms of Ni-rich NMC cathodes and graphite anodes. And with a broad collection of proposed mechanisms on both atomic and micrometer scales, this review can supplement previous degradation studies of Ni-rich NMC batteries. In addition, this review will categorize advanced mitigation strategies for both electrodes based on different modifications in which Ni-rich NMC cathode improvement strategies involve dopants, gradient layers, surface coatings, carbon matrixes and advanced synthesis methods, whereas graphite anode improvement strategies involve surface coatings, charge/discharge protocols and electrolyte volume estimations. Electrolyte components that can facilitate the stabilization of anodic solid electrolyte interfaces are also reviewed, and trade-offs between modification techniques as well as controversies are discussed for a deeper understanding of the mitigation strategies of Ni-rich NMC/graphite LIBs. Furthermore, this review will present various physical and electrochemical diagnostic tools that are vital in the elucidation of degradation mechanisms during operation to supplement future degradation studies. Finally, this review will summarize current research focuses and propose future research directions.
Graphic Abstract
The demand for lithium-ion batteries (LIBs) with high mass specific capacities, high rate capabilities and longterm cyclabilities is driving the research and development of LIBs with nickel-rich NMC (LiNixMnyCo1−x−yO2, x ≥ 0.5) cathodes and graphite (LixC6) anodes. Based on this, this review will summarize recently reported and widely recognized studies of the degradation mechanisms of Ni-rich NMC cathodes and graphite anodes. And with a broad collection of proposed mechanisms on both atomic and micrometer scales, this review can supplement previous degradation studies of Ni-rich NMC batteries. In addition, this review will categorize advanced mitigation strategies for both electrodes based on different modifications in which Ni-rich NMC cathode improvement strategies involve dopants, gradient layers, surface coatings, carbon matrixes and advanced synthesis methods, whereas graphite anode improvement strategies involve surface coatings, charge/discharge protocols and electrolyte volume estimations. Electrolyte components that can facilitate the stabilization of anodic solid-electrolyte interfaces (SEIs) are also reviewed and tradeoffs between modification techniques as well as controversies are discussed for a deeper understanding of the mitigation strategies of Ni-rich NMC/graphite LIBs. Furthermore, this review will present various physical and electrochemical diagnostic tools that are vital in the elucidation of degradation mechanisms during operation to supplement future degradation studies. Finally, this review will summarize current research focuses and propose future research directions.
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19
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Yang X, Tang Y, Shang G, Wu J, Lai Y, Li J, Qu Y, Zhang Z. Enhanced Cyclability and High-Rate Capability of LiNi 0.88Co 0.095Mn 0.025O 2 Cathodes by Homogeneous Al 3+ Doping. ACS APPLIED MATERIALS & INTERFACES 2019; 11:32015-32024. [PMID: 31407883 DOI: 10.1021/acsami.9b10558] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
To suppress capacity fading of nickel-rich materials for lithium-ion batteries, a homogeneous Al3+ doping strategy is realized through tailoring the Al3+ diffusion path from the bulk surface to interior. Specifically, the layered LiNi0.88Co0.095Mn0.025O2 cathode with the radial arrangement of primary grains is successfully synthesized through optimization design of precursors. The Al3+ follows the radially oriented primary grains into the bulk by introduction of nano-Al2O3 during the sintering process, realizing the homogeneous Al3+ distribution in the whole material. Particularly, a series of nano-Al2O3-modified LiNi0.88Co0.095Mn0.025O2 are investigated. With the 2% molar weight of Al3+ doping, the capacity retention ratio of the cathode is tremendously improved from 52.26 to 91.57% at 1 C rate after 150 cycles. Even at a heavy current density of 5 (&10) C for the LiNi0.88Co0.095Mn0.025O2-Al2% cathode, a high reversible capacity of 172.3 (&165.7) mA h g-1 can be acquired, which amount to the 84.46 (&81.25) % capacity retention at 0.2 C. Moreover, voltage deterioration is significantly suppressed by homogeneous Al3+ doping from the results of median voltage and dQ/dV curves. Therefore, homogeneous Al3+ doping benefited from the radial arrangement of primary grains provides an effective and practical way to prolong lifespan, as well as improves rate performance and voltage stability of nickel-rich ternary materials.
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Affiliation(s)
- Xing Yang
- School of Metallurgy and Environment , Central South University , Changsha , Hunan 410083 , China
| | - Yiwei Tang
- School of Metallurgy and Environment , Central South University , Changsha , Hunan 410083 , China
| | - Guozhi Shang
- School of Metallurgy and Environment , Central South University , Changsha , Hunan 410083 , China
| | - Jian Wu
- School of Metallurgy and Environment , Central South University , Changsha , Hunan 410083 , China
| | - Yanqing Lai
- School of Metallurgy and Environment , Central South University , Changsha , Hunan 410083 , China
| | - Jie Li
- School of Metallurgy and Environment , Central South University , Changsha , Hunan 410083 , China
| | - Yaohui Qu
- School of Physics, Communication and Electronics , Jiangxi Normal University , Nanchang , Jiangxi 330022 , China
| | - Zhian Zhang
- School of Metallurgy and Environment , Central South University , Changsha , Hunan 410083 , China
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20
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Chen J, Yang H, Li T, Liu C, Tong H, Chen J, Liu Z, Xia L, Chen Z, Duan J, Li L. The Effects of Reversibility of H2-H3 Phase Transition on Ni-Rich Layered Oxide Cathode for High-Energy Lithium-Ion Batteries. Front Chem 2019; 7:500. [PMID: 31380345 PMCID: PMC6646592 DOI: 10.3389/fchem.2019.00500] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2019] [Accepted: 07/01/2019] [Indexed: 11/14/2022] Open
Abstract
Although LiNi0.8Co0.1Mn0.1O2 is attracting increasing attention on account of its high specific capacity, the moderate cycle lifetime still hinders its large-scale commercialization applications. Herein, the Ti-doped LiNi0.8Co0.1Mn0.1O2 compounds are successfully synthesized. The Li(Ni0.8Co0.1Mn0.1)0.99Ti0.01O2 sample exhibits the best electrochemical performance. Under the voltage range of 2.7–4.3 V, it maintains a reversible capacity of 151.01 mAh·g−1 with the capacity retention of 83.98% after 200 cycles at 1 C. Electrochemical impedance spectroscopy (EIS) and differential capacity profiles during prolonged cycling demonstrate that the Ti doping could enhance both the abilities of electronic transition and Li ion diffusion. More importantly, Ti doping can also improve the reversibility of the H2-H3 phase transitions during charge-discharge cycles, thus improving the electrochemical performance of Ni-rich cathodes.
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Affiliation(s)
- Jie Chen
- School of Materials Science and Engineering, Changsha University of Science and Technology, Changsha, China
| | - Huiping Yang
- School of Materials Science and Engineering, Changsha University of Science and Technology, Changsha, China
| | - Tianhao Li
- School of Materials Science and Engineering, Changsha University of Science and Technology, Changsha, China
| | - Chaoyang Liu
- School of Materials Science and Engineering, Changsha University of Science and Technology, Changsha, China
| | - Hui Tong
- School of Metallurgy and Environment, Central South University, Changsha, China
| | - Jiaxin Chen
- School of Materials Science and Engineering, Changsha University of Science and Technology, Changsha, China
| | - Zengsheng Liu
- School of Materials Science and Engineering, Changsha University of Science and Technology, Changsha, China
| | - Lingfeng Xia
- School of Materials Science and Engineering, Changsha University of Science and Technology, Changsha, China
| | - Zhaoyong Chen
- School of Materials Science and Engineering, Changsha University of Science and Technology, Changsha, China
| | - Junfei Duan
- School of Materials Science and Engineering, Changsha University of Science and Technology, Changsha, China
| | - Lingjun Li
- School of Materials Science and Engineering, Changsha University of Science and Technology, Changsha, China.,Hunan Provincial Key Laboratory of Modeling and Monitoring on the Near-Earth Electromagnetic Environments, Changsha University of Science and Technology, Changsha, China
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21
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Atomically ordered and epitaxially grown surface structure in core-shell NCA/NiAl2O4 enabling high voltage cyclic stability for cathode application. Electrochim Acta 2019. [DOI: 10.1016/j.electacta.2019.01.144] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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22
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Superior lithium storage of Si/WSi2 composite prepared via one step co-reduction of multi-phase oxide. J Electroanal Chem (Lausanne) 2018. [DOI: 10.1016/j.jelechem.2018.08.035] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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23
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Hu X, Guo H, Peng W, Wang Z, Li X, Hu Q. Effects of Nb doping on the performance of 0.5Li2MnO3·0.5LiNi1/3Co1/3Mn1/3O2 cathode material for lithium-ion batteries. J Electroanal Chem (Lausanne) 2018. [DOI: 10.1016/j.jelechem.2018.05.015] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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24
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Li H, Zhang Z, Xu M, Bao W, Lai Y, Zhang K, Li J. Triclinic Off-Stoichiometric Na 3.12Mn 2.44(P 2O 7) 2/C Cathode Materials for High-Energy/Power Sodium-Ion Batteries. ACS APPLIED MATERIALS & INTERFACES 2018; 10:24564-24572. [PMID: 29972297 DOI: 10.1021/acsami.8b07577] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The application of sodium-ion batteries (SIBs) requires a suitable cathode material with low cost, nontoxic, high safety, and high energy density, which is still a big challenge; thus, a basic research on exploring new types of materials is imperative. In this work, a manganic pyrophosphate and carbon compound Na3.12Mn2.44(P2O7)2/C has been synthesized through a feasible sol-gel method. Rietveld refinement reveals that Na3.12Mn2.44(P2O7)2 adopts a triclinic structure ( P1̅ space group), which possesses spacious ion diffusion channels for facile sodium migration. The off-stoichiometric phase is able to offer more reversible Na+, delivering an enhanced reversible capacity of 114 mA h g-1 at 0.1 C, and because of the strong "inductive effect" that (P2O7)4- groups imposing on the Mn3+/Mn2+ redox couple, Na3.12Mn2.44(P2O7)2/C presents high platforms above 3.6 V, contributing a remarkable energy density of 376 W h kg-1, which is among the highest Fe-/Mn-based polyanion-type cathode materials. Furthermore, the off-stoichiometric compound also presents satisfactory rate capability and long-cycle stability, with a capacity retention of 75% after 500 cycles at 5 C. Ex situ X-ray diffraction demonstrates a single-phase reaction mechanism, and the density functional theory calculations display two one-dimensional sodium migration paths with low energy barriers in Na3.12Mn2.44(P2O7)2, which is vital for the facile sodium storage. We believe that this compound will be a competitive cathode material for large-scale SIBs.
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Affiliation(s)
- Huangxu Li
- School of Metallurgy and Environment , Central South University , Changsha 410083 , P. R. China
| | - Zhian Zhang
- School of Metallurgy and Environment , Central South University , Changsha 410083 , P. R. China
| | - Ming Xu
- School of Metallurgy and Environment , Central South University , Changsha 410083 , P. R. China
- Department of Applied Physics , Hong Kong Polytechnic University , Kowloon , Hong Kong 999077 , P. R. China
| | - Weizhai Bao
- Centre for Clean Energy Technology , University of Technology Sydney , Sydney , New South Wales 2007 , Australia
| | - Yanqing Lai
- School of Metallurgy and Environment , Central South University , Changsha 410083 , P. R. China
| | - Kai Zhang
- School of Metallurgy and Environment , Central South University , Changsha 410083 , P. R. China
| | - Jie Li
- School of Metallurgy and Environment , Central South University , Changsha 410083 , P. R. China
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25
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Cao Y, Qi X, Hu K, Wang Y, Gan Z, Li Y, Hu G, Peng Z, Du K. Conductive Polymers Encapsulation To Enhance Electrochemical Performance of Ni-Rich Cathode Materials for Li-Ion Batteries. ACS APPLIED MATERIALS & INTERFACES 2018; 10:18270-18280. [PMID: 29733185 DOI: 10.1021/acsami.8b02396] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Ni-rich cathode materials have drawn lots of attention owing to its high discharge specific capacity and low cost. Nevertheless, there are still some inherent problems that desiderate to be settled, such as cycling stability and rate properties as well as thermal stability. In this article, the conductive polymers that integrate the excellent electronic conductivity of polyaniline (PANI) and the high ionic conductivity of poly(ethylene glycol) (PEG) are designed for the surface modification of LiNi0.8Co0.1Mn0.1O2 cathode materials. Besides, the PANI-PEG polymers with elasticity and flexibility play a significant role in alleviating the volume contraction or expansion of the host materials during cycling. A diversity of characterization methods including scanning electron microscopy, energy-dispersive X-ray spectrometer, transmission electron microscopy, thermogravimetric analysis, Fourier transform infrared have demonstrated that LiNi0.8Co0.1Mn0.1O2 cathode materials is covered with a homogeneous and thorough PANI-PEG polymers. As a result, the surface-modified LiNi0.8Co0.1Mn0.1O2 delivers high discharge specific capacity, excellent rate properties, and outstanding cycling performance.
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Affiliation(s)
- Yanbing Cao
- School of Metallurgy and Environment , Central South University , Changsha 410083 , China
| | - Xianyue Qi
- School of Metallurgy and Environment , Central South University , Changsha 410083 , China
| | - Kaihua Hu
- School of Metallurgy and Environment , Central South University , Changsha 410083 , China
| | - Yong Wang
- School of Metallurgy and Environment , Central South University , Changsha 410083 , China
| | - Zhanggen Gan
- School of Metallurgy and Environment , Central South University , Changsha 410083 , China
| | - Ying Li
- School of Metallurgy and Environment , Central South University , Changsha 410083 , China
| | - Guorong Hu
- School of Metallurgy and Environment , Central South University , Changsha 410083 , China
| | - Zhongdong Peng
- School of Metallurgy and Environment , Central South University , Changsha 410083 , China
| | - Ke Du
- School of Metallurgy and Environment , Central South University , Changsha 410083 , China
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26
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Ming L, Zhang B, Cao Y, Zhang JF, Wang CH, Wang XW, Li H. Effect of Nb and F Co-doping on Li 1.2Mn 0.54Ni 0.13Co 0.13O 2 Cathode Material for High-Performance Lithium-Ion Batteries. Front Chem 2018; 6:76. [PMID: 29675405 PMCID: PMC5896303 DOI: 10.3389/fchem.2018.00076] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Accepted: 03/08/2018] [Indexed: 11/13/2022] Open
Abstract
The Li1.2Mn0.54-xNbxCo0.13Ni0.13O2-6xF6x (x = 0, 0.01, 0.03, 0.05) is prepared by traditional solid-phase method, and the Nb and F ions are successfully doped into Mn and O sites of layered materials Li1.2Mn0.54Co0.13Ni0.13O2, respectively. The incorporating Nb ion in Mn site can effectively restrain the migration of transition metal ions during long-term cycling, and keep the stability of the crystal structure. The Li1.2Mn0.54-xNbxCo0.13Ni0.13O2-6xF6x shows suppressed voltage fade and higher capacity retention of 98.1% after 200 cycles at rate of 1 C. The replacement of O2- by the strongly electronegative F- is beneficial for suppressed the structure change of Li2MnO3 from the eliminating of oxygen in initial charge process. Therefore, the initial coulombic efficiency of doped Li1.2Mn0.54-xNbxCo0.13Ni0.13O2-6xF6x gets improved, which is higher than that of pure Li1.2Mn0.54Co0.13Ni0.13O2. In addition, the Nb and F co-doping can effectively enhance the transfer of lithium-ion and electrons, and thus improving rate performance.
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Affiliation(s)
- Lei Ming
- School of Metallurgy and Environment, Central South University, Changsha, China
| | - Bao Zhang
- School of Metallurgy and Environment, Central South University, Changsha, China
| | - Yang Cao
- School of Metallurgy and Environment, Central South University, Changsha, China.,Medical Engineering Center, Xiangya Hospital of Central South University, Changsha, China
| | - Jia-Feng Zhang
- School of Metallurgy and Environment, Central South University, Changsha, China
| | - Chun-Hui Wang
- School of Metallurgy and Environment, Central South University, Changsha, China
| | - Xiao-Wei Wang
- School of Metallurgy and Environment, Central South University, Changsha, China
| | - Hui Li
- School of Metallurgy and Environment, Central South University, Changsha, China
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27
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Tan L, Li X, Wang Z, Guo H, Wang J. Lightweight Reduced Graphene Oxide@MoS 2 Interlayer as Polysulfide Barrier for High-Performance Lithium-Sulfur Batteries. ACS APPLIED MATERIALS & INTERFACES 2018; 10:3707-3713. [PMID: 29300086 DOI: 10.1021/acsami.7b18645] [Citation(s) in RCA: 76] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
The further development of lithium-sulfur (Li-S) batteries is limited by the fact that the soluble polysulfide leads to the shuttle effect, thereby reducing the cycle stability and cycle life of the batteries. To address this issue, here a thin and lightweight (8 μm and 0.24 mg cm-2) reduced graphene oxide@MoS2 (rGO@MoS2) interlayer between the cathode and the commercial separator is developed as a polysulfide barrier. The rGO plays the roles of both a polysulfide physical barrier and an additional current collector, while MoS2 has a high chemical adsorption for polysulfides. The experiments demonstrate that the Li-S cell constructed with an rGO@MoS2-coated separator shows a high reversible capacity of 1122 mAh g-1 at 0.2 C, a low capacity fading rate of 0.116% for 500 cycles at 1 C, and an outstanding rate performance (615 mAh g-1 at 2 C). Such an interlayer is expected to be ideal for lithium-sulfur battery applications because of its excellent electrochemical performance and simple synthesis process.
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Affiliation(s)
- Lei Tan
- School of Metallurgy and Environment, Central South University , Changsha 410083, China
| | - Xinhai Li
- School of Metallurgy and Environment, Central South University , Changsha 410083, China
| | - Zhixing Wang
- School of Metallurgy and Environment, Central South University , Changsha 410083, China
| | - Huajun Guo
- School of Metallurgy and Environment, Central South University , Changsha 410083, China
| | - Jiexi Wang
- School of Metallurgy and Environment, Central South University , Changsha 410083, China
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