The Electrochemical Performance of the Spinel LiMn_2O_4

Authors

Shi gang LU, Corrosion and Protection Center, School of Material Science and Engineering, University of Science and Technology Beijing 10083) LU Min?xu, YAN Mi lin, ZHAO Guo xi;
Yu cheng SUN, General Research Institute of Non ferrous Metals, Beijing 100088, China;
Ren min LIU, General Research Institute of Non ferrous Metals, Beijing 100088, China;
Wei-hua JIN, General Research Institute of Non ferrous Metals, Beijing 100088, China;
Wen-zhong LI, General Research Institute of Non ferrous Metals, Beijing 100088, China;
Cang HAN, General Research Institute of Non ferrous Metals, Beijing 100088, China;

Corresponding Author

Shi gang LU

Abstract

The cathode material spinel LiMn 2O 4 of lithium ion battery was synthesized by making use of solid state reaction at 750～850 ℃. The discharge capacity was 115～125 mAh g -1 . It was observed that the capacity loss increase at the elvated 55 ℃ temperature. A little excess Li content and the Co doped spined could improved the cycle capability of the cathode material. The dissolution of the spined in the electrolyte was measured. The treatment method was used to stabilize the LiMn 2O 4 structure. It was found that the spinel LiMn 2O 4, treated with layer compound LiCoO 2 at 850 ℃ showed poor electrochemical lithium insertion/extraction, and the XRD structure of both LiMn 2O 4 and LiCoO 2 changed after the treatment.

Keywords

Lithium ion battery, Spinel LiMn 2O 4, Solid state reaction, Electrochemical reaction

DOI Link

https://doi.org/10.61558/2993-074X.1405

Publication Date

2000-11-28

Online Available Date

2000-11-28

Revised Date

2000-11-28

Received Date

2000-11-28

Recommended Citation

Shi gang LU, Yu cheng SUN, Ren min LIU, Wei-hua JIN, Wen-zhong LI, Cang HAN. The Electrochemical Performance of the Spinel LiMn_2O_4[J]. Journal of Electrochemistry, 2000 , 6(4): 442-450.
DOI: 10.61558/2993-074X.1405
Available at: https://jelectrochem.xmu.edu.cn/journal/vol6/iss4/7