Synthesis of Li_xCoO₂ and Its Behaviour in Rechargeable Lithium Battery

Authors

Mingfeng Guo, Tianjin Institute of Power Sources, Tianjin 300381
Ruimin Yang, Tianjin Institute of Power Sources, Tianjin 300381
Zebo Zhang, Tianjin Institute of Power Sources, Tianjin 300381
Jincao Ye, Tianjin Institute of Power Sources, Tianjin 300381

Corresponding Author

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Abstract

The Variations of crystal lattice parameters of Li_xCoO₂ during charge anddischarge have been st ud ied by XRD and AAR spectroscopy. It was found that the Li_xCoO₂ crystalvolume expanded during charge and contracted during discharge. The crystal lattice structure was broken because of the formation of Co₃O₄ when deeply charge.The variation of lattice parameter C₀ value in cycling process was similar to that in charge process.The variation of 006 peak was the mostsensitive in every case. In case of preheating for 20 hours at 700℃ before operating high temperature, the 006 peak obtained an enhancement obviously. It has had the good rechargeability in measurement of the cyclic voltammograms, the CV curve at 1000th was same as that of first one. This material could have cvcled more than 270 times at 100% DOD.The AA size cells of rechargeable lithium battery and Li-Ion battery both are being tested now.

Keywords

Lithium-ion battery, LixCoO2, Lattice parameter

DOI Link

https://doi.org/10.61558/2993-074X.1266

Publication Date

1995-02-28

Online Available Date

1995-02-28

Revised Date

1995-02-20

Received Date

1994-11-14

Recommended Citation

Mingfeng Guo, Ruimin Yang, Zebo Zhang, Jincao Ye. Synthesis of Li_xCoO₂ and Its Behaviour in Rechargeable Lithium Battery[J]. Journal of Electrochemistry, 1995 , 1(1): 70-77.
DOI: 10.61558/2993-074X.1266
Available at: https://jelectrochem.xmu.edu.cn/journal/vol1/iss1/11