The Electrochemical Performance of the Spinel LiMn₂O₄

Authors

Shi-gang LU, General Research Institute of Non ferrous Metals, Beijing 100088, China
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 LiMn₂O₄ 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 LiMn₂O₄ structure. It was found that the spinel LiMn₂O₄, treated with layer compound LiCoO₂ at 850 ℃ showed poor electrochemical lithium insertion/extraction, and the XRD structure of both LiMn₂O₄ and LiCoO₂ changed after the treatment.

Keywords

Lithium ion battery, Spinel LiMn2O4, 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

2000-04-14

Received Date

1999-10-18

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 LiMn₂O₄[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