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An effective co-modification strategy to enhance the cycle stability of LiNi(0.8)Co(0.1)Mn(0.1)O(2) for lithium-ion batteries

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 Li(2)CO(3)) on the surface of Ni-rich cathod...

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Autores principales: Zhou, Jingjing, Wei, Bingxin, Liu, Meng, Qin, Yinping, Cheng, Hongyu, Lyu, Yingchun, Liu, Yang, Guo, Bingkun
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society of Chemistry 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10664004/
https://www.ncbi.nlm.nih.gov/pubmed/38020016
http://dx.doi.org/10.1039/d3ra04145j
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author Zhou, Jingjing
Wei, Bingxin
Liu, Meng
Qin, Yinping
Cheng, Hongyu
Lyu, Yingchun
Liu, Yang
Guo, Bingkun
author_facet Zhou, Jingjing
Wei, Bingxin
Liu, Meng
Qin, Yinping
Cheng, Hongyu
Lyu, Yingchun
Liu, Yang
Guo, Bingkun
author_sort Zhou, Jingjing
collection PubMed
description 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 Li(2)CO(3)) on the surface of Ni-rich cathode materials and form a uniform coating to suppress the side reactions between the cathode and electrolyte. Here, CoSO(4) is utilized as a modifier for LiNi(0.8)Co(0.1)Mn(0.1)O(2) (NCM811) cathode materials. It reacts with the residual lithium on the surface of the NCM811 cathode to form Li-ion conductive Li(2)SO(4) 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% CoSO(4) 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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spelling pubmed-106640042023-11-22 An effective co-modification strategy to enhance the cycle stability of LiNi(0.8)Co(0.1)Mn(0.1)O(2) for lithium-ion batteries Zhou, Jingjing Wei, Bingxin Liu, Meng Qin, Yinping Cheng, Hongyu Lyu, Yingchun Liu, Yang Guo, Bingkun RSC Adv Chemistry 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 Li(2)CO(3)) on the surface of Ni-rich cathode materials and form a uniform coating to suppress the side reactions between the cathode and electrolyte. Here, CoSO(4) is utilized as a modifier for LiNi(0.8)Co(0.1)Mn(0.1)O(2) (NCM811) cathode materials. It reacts with the residual lithium on the surface of the NCM811 cathode to form Li-ion conductive Li(2)SO(4) 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% CoSO(4) 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. The Royal Society of Chemistry 2023-11-22 /pmc/articles/PMC10664004/ /pubmed/38020016 http://dx.doi.org/10.1039/d3ra04145j Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by/3.0/
spellingShingle Chemistry
Zhou, Jingjing
Wei, Bingxin
Liu, Meng
Qin, Yinping
Cheng, Hongyu
Lyu, Yingchun
Liu, Yang
Guo, Bingkun
An effective co-modification strategy to enhance the cycle stability of LiNi(0.8)Co(0.1)Mn(0.1)O(2) for lithium-ion batteries
title An effective co-modification strategy to enhance the cycle stability of LiNi(0.8)Co(0.1)Mn(0.1)O(2) for lithium-ion batteries
title_full An effective co-modification strategy to enhance the cycle stability of LiNi(0.8)Co(0.1)Mn(0.1)O(2) for lithium-ion batteries
title_fullStr An effective co-modification strategy to enhance the cycle stability of LiNi(0.8)Co(0.1)Mn(0.1)O(2) for lithium-ion batteries
title_full_unstemmed An effective co-modification strategy to enhance the cycle stability of LiNi(0.8)Co(0.1)Mn(0.1)O(2) for lithium-ion batteries
title_short An effective co-modification strategy to enhance the cycle stability of LiNi(0.8)Co(0.1)Mn(0.1)O(2) for lithium-ion batteries
title_sort effective co-modification strategy to enhance the cycle stability of lini(0.8)co(0.1)mn(0.1)o(2) for lithium-ion batteries
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10664004/
https://www.ncbi.nlm.nih.gov/pubmed/38020016
http://dx.doi.org/10.1039/d3ra04145j
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