Effect of Sm2O3 modification on Li[Li 0.2Mn0.56Ni0.16Co0.08]O2 cathode material for lithium ion batteries

Shaojun Shi,Jiangping Tu,Yu Zhang,Yan Zhang,Xuyang Zhao,Xiuli Wang,Changdong Gu

Electrochimica Acta（2013）

引用 99|浏览3

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摘要

•Sm2O3 is well coated on Li[Li0.2Mn0.56Ni0.16Co0.08]O2 by simple wet chemical method.•The coated sample exhibits high capacity of 234.5mAhg−1 at 1C.•Capacity retention of 91.5% is obtained at 1C (200mAg−1) after 80 cycles 25°C.•EIS shows the thin Sm2O3 layer mainly reduces the charge transfer resistance.

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关键词

Lithium-rich manganese nickel cobalt oxide,Samarium oxide,Surface modification,Cyclic stability,Lithium ion battery

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