Synthesis of Li2Si2O5-coated LiNi0.6Co0.2Mn0.2O2 cathode materials with enhanced high-voltage electrochemical properties for lithium-ion batteries
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- 作者：Shengjie Liu ; Hao Wu ; Ling Huang ; Mingwu Xiang ; Heng Liu ; Yun Zhang ; y_zhang@scu.edu.cn" class="auth_mail" title="E-mail the corresponding author
- 关键词：LiNi0.6Co0.2Mn0.2O2 ; Lithium residuals ; Li2Si2O5 ; Cathode materials ; Lithium-ion batteries
- 刊名：Journal of Alloys and Compounds
- 出版年：2016
- 出版时间：25 July 2016
- 年：2016
- 卷：674
- 期：Complete
- 页码：447-454
- 全文大小：2480 K
文摘
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H2SiO3 is used as a remover to react with lithium residues on LiNi0.6Co0.2Mn0.2O2 surface.
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A surface coating layer of Li+-conductive Li2Si2O5 is formed.
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Coating layer improves the velocity of Li+ migration on electrode surface.
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Erosion from the HF and CO2 on electrode is greatly suppressed.
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