Failure Reaction Mechanism of Internal Short-Circuit for Lithium-ion Batteries

Authors

He LI, Tianjin Lishen Battery Joint-Stock CO. ,LTD,Tianjin 300384,China;
Shen-jun YU, Tianjin Lishen Battery Joint-Stock CO. ,LTD,Tianjin 300384,China;
Zhi-kui CHEN, Tianjin Lishen Battery Joint-Stock CO. ,LTD,Tianjin 300384,China;
Guang-chuan LIANG, Hebei University of Technology,Tianjin 300130,China;

Abstract

In this work,the battery impact testing machine has been used to study the failure progress of internal short-circuit ( ISC) for lithium ion batteries. The reaction mechanisms between cathode/anode and electrolyte in the battery at different temperatures were characterized by differential scanning calorimetry ( DSC) ,gas chromatography/mass spectrometry ( GC/MS) and X-ray diffraction ( XRD) . The experimental results show that the ISC failure of the battery was mainly due to the reaction between cathode Li0.5CoO2 and electrolyte. The decomposition and oxygen evolution reactions of cathode occurred when the temperature reached a certain value. At the same time a fierce oxidation reaction occurred between oxygen and electrolyte,giving out a large quantity of CO2 gas,and breaking aluminum can,thus causing the battery exploded. And the decomposition of SEI film and the initial reaction between anode and electrolyte were mainly to accumulating heat for the reaction between cathode and electrolyte.

Keywords

lithium ion battery, internal short-circuit, failure mechanism, impact

DOI Link

https://doi.org/10.61558/2993-074X.3341

Publication Date

2010-05-28

Online Available Date

2010-05-28

Revised Date

2010-05-28

Received Date

2010-05-28

Recommended Citation

He LI, Shen-jun YU, Zhi-kui CHEN, Guang-chuan LIANG. Failure Reaction Mechanism of Internal Short-Circuit for Lithium-ion Batteries[J]. Journal of Electrochemistry, 2010 , 16(2): Article 13.
DOI: 10.61558/2993-074X.3341
Available at: https://jelectrochem.xmu.edu.cn/journal/vol16/iss2/13

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