Effects of Eelectrolyte Salt to the SEI Layer of LiCoO₂ Material

Authors

Ming-sen ZHENG, 1.Department of Chemistry and The state Key Laboratory for Physical Chemistry of Solid Surface,College of Chemistry and Chemical Engineering,Xiamen University,Xiamen,Fujian 361005,Fujian,China,2.Xiamen Univ-PowerLong Battery Institute,Xiamen Fujian 361005,Fujian,China;
Quan-feng DONG, 1.Department of Chemistry and The state Key Laboratory for Physical Chemistry of Solid Surface,College of Chemistry and Chemical Engineering,Xiamen University,Xiamen,Fujian 361005,Fujian,China,2.Xiamen Univ-PowerLong Battery Institute,Xiamen Fujian 361005,Fujian,China;Follow
Ya-wei ZHU, 1.Department of Chemistry and The state Key Laboratory for Physical Chemistry of Solid Surface,College of Chemistry and Chemical Engineering,Xiamen University,Xiamen,Fujian 361005,Fujian,China,
Ya-ding ZHAN, 1.Department of Chemistry and The state Key Laboratory for Physical Chemistry of Solid Surface,College of Chemistry and Chemical Engineering,Xiamen University,Xiamen,Fujian 361005,Fujian,China,
Zu-geng LIN, 1.Department of Chemistry and The state Key Laboratory for Physical Chemistry of Solid Surface,College of Chemistry and Chemical Engineering,Xiamen University,Xiamen,Fujian 361005,Fujian,China,

Corresponding Author

Quan-feng DONG(qfdong@xmu.edu.cn)

Abstract

The character of the solid electrolyte interface(SEI layer) on the surface of LiCoO₂ formed in the electrolytes contained different salt such as LiPF₆、LiClO₄ and LiBF₄ were studied in this paper.The results showed that the SEI film exists in all three electrolytes after the processes of charge and discharge.The morphological character and the formation voltage of the SEI layer of LiCoO₂ were different in different electrolytes.The electrochemical performance of the battery such as reversible capacity,average discharge voltage and electrochemical impedance were affected significantly by SEI film formed in different electrolytes.

Keywords

Lithium ion battery, Electrolyte salt, SEI film

DOI Link

https://doi.org/10.61558/2993-074X.1727

Publication Date

2006-05-28

Online Available Date

2006-05-28

Revised Date

2006-05-20

Received Date

2006-01-22

Recommended Citation

Ming-sen ZHENG, Quan-feng DONG, Ya-wei ZHU, Ya-ding ZHAN, Zu-geng LIN. Effects of Eelectrolyte Salt to the SEI Layer of LiCoO₂ Material[J]. Journal of Electrochemistry, 2006 , 12(2): 223-226.
DOI: 10.61558/2993-074X.1727
Available at: https://jelectrochem.xmu.edu.cn/journal/vol12/iss2/19