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Improvement of Cyclic Stability of Cathode Material LiNi0.8Co0.1Mn0.1O2 by Dual SiO2@Li2SiO3 Coating
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Kuiyuan CHEN1, Kaiqiang LI2, Yanpu LI3
Mining and Metallurgical Engineering | 2024, 44(4) : 36 - 41
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Mining and Metallurgical Engineering | 2024, 44(4): 36-41
• SPECIAL ISSUE: BATTERY MATERIALS •
Improvement of Cyclic Stability of Cathode Material LiNi0.8Co0.1Mn0.1O2 by Dual SiO2@Li2SiO3 Coating
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Kuiyuan CHEN1, Kaiqiang LI2, Yanpu LI3
Affiliations
  • 1.Zhengzhou Railway Vocational & Technical College, Zhengzhou 450018, Henan, China
  • 2.Luoyang Railway Information Engineering School, Luoyang 471000, Henan, China
  • 3.Guizhou Minzu University, Guiyang 550025, Guizhou, China
Published: 2024-08-01 doi: 10.3969/j.issn.0253-6099.2024.04.007
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With an increase in Ni content, the capacity of high-nickel layered metal oxides (LiNixMnyCo1-x-yO2 (0.8≤x<1, NCM) greatly decreases. In view of such problem, it is proposed that singly-crystal NCM cathode material be modified by dual SiO2@Li2SiO3 coating to improve its electrochemical performance. During the synthesis process, the reaction of can consume the residue lithium on the material surface, thus improving diffusion kinetics of interface lithium ions and inhibiting side reaction at the interface. It is shown that the modified cathode material delivers a specific discharge capacity of 156.88 mAh/g after 120 cycles, with capacity retention rate of 70.52%.

lithium-ion battery  /  ternary cathode material  /  modification  /  high nickel layered metal oxide  /  surface coating  /  high energy density  /  cyclic stability
Kuiyuan CHEN, Kaiqiang LI, Yanpu LI. Improvement of Cyclic Stability of Cathode Material LiNi0.8Co0.1Mn0.1O2 by Dual SiO2@Li2SiO3 Coating[J]. Mining and Metallurgical Engineering, 2024 , 44 (4) : 36 -41 . DOI: 10.3969/j.issn.0253-6099.2024.04.007
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Year 2024 volume 44 Issue 4
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Article Info
doi: 10.3969/j.issn.0253-6099.2024.04.007
  • Receive Date：2024-05-08
  • Online Date：2026-03-18
  • Published：2024-08-01
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  • Received：2024-05-08
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Affiliations
    1.Zhengzhou Railway Vocational & Technical College, Zhengzhou 450018, Henan, China
    2.Luoyang Railway Information Engineering School, Luoyang 471000, Henan, China
    3.Guizhou Minzu University, Guiyang 550025, Guizhou, China
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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