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Citation: WANG Hong, ZHANG Weide. Surface-coating Modification of Li-rich Cathode Materials Li[Li_0.2Mn_0.4Fe_0.4]O₂[J]. Chinese Journal of Applied Chemistry, ;2013, 30(6): 705-709. doi: 10.3724/SP.J.1095.2013.20364 shu

Surface-coating Modification of Li-rich Cathode Materials Li[Li_0.2Mn_0.4Fe_0.4]O₂

WANG Hong ^a, ,
ZHANG Weide ^b

a. School of Chemistry and Chemical Engineering, Mianyang Normal University, Mianyang 621000, China;
b. College of Chemistry, South China University of Technology, Guangzhou 510006, China

Received Date: 23 August 2012
Revised Date: 14 September 2012

Li-rich cathode material of Li[Li_0.2Mn_0.4Fe_0.4]O₂ was prepared by co-precipitation,and was modified by surface coating with Al₂O₃. The modified samples were characterized by X-ray diffraction,scanning electron microscopy,and electrochemical tests. It was found that the 4.0% Al₂O₃ coated Li[Li_0.2Mn_0.4Fe_0.4]O₂ exhibited a good cycling performance compared with the bare Li[Li_0.2Mn_0.4Fe_0.4]O₂. The discharge capacity loss of the surface coated Li[Li_0.2Mn_0.4Fe_0.4]O₂ after 50 cycling was about 9%.
- lithium ion batteries,
- surface coated Li[Li_0.2Mn_0.4Fe_0.4]O₂,
- Li-rich cathode materials
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Surface-coating Modification of Li-rich Cathode Materials Li[Li0.2Mn0.4Fe0.4]O2

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通讯作者: 陈斌, bchen63@163.com

Surface-coating Modification of Li-rich Cathode Materials Li[Li_0.2Mn_0.4Fe_0.4]O₂