Suppression of O2 evolution from oxide cathode for lithium-ion batteries: VOx-impregnated 0.5Li2MnO3-0.5LiNi0.4Co0.2Mn0.4O2 cathode

被引:36
作者
Park, Kyu-Sung [1 ]
Benayad, Anass [2 ]
Park, Min-Sik [1 ]
Choi, Wonchang [1 ]
Im, Dongmin [1 ]
机构
[1] Samsung Adv Inst Technol, Battery Grp, Yongin 446712, South Korea
[2] Samsung Adv Inst Technol, Analyt Engn Grp, Yongin 446712, South Korea
关键词
ELECTRODES; XPS; MN;
D O I
10.1039/c0cc00281j
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
A VOx-impregnated oxide cathode for lithium ion batteries exhibits a substantial drop in oxygen evolution during high voltage operation. An electrolyte was found to catalyze the gas evolution, and the VOx layer could protect the cathode oxide surface from the electrolyte and stabilize the surface oxide ions during their electrochemical oxidation.
引用
收藏
页码:4190 / 4192
页数:3
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