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Citation: WANG Qing-Song, SUN Jin-Hua, YAO Xiao-Lin, CHEN Chun-Hua. Thermal Behavior Inside Lithium-ion Batteries[J]. Chinese Journal of Applied Chemistry, ;2006, 23(5): 489-493. shu

Thermal Behavior Inside Lithium-ion Batteries

1.
a State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei 230026;
2.
b Department of Materials Science & Engineering, University of Science and Technology of China, Hefei 230026

Corresponding author: WANG Qing-Song,
Received Date: 20 October 2005
Available Online: 8 January 2006
Fund Project:

In order to study the thermal behavior in lithium-ion battery,the main heat generation process in the battery was studied by means of a C80 calorimeter.The main heat output processes including the thermal decomposition of electrolyte and electrodes,the reactions between electrolyte and electrodes,were analysed in this paper.The results show that the lithiated carbon reacted with electrolyte even at 40℃,and delithiated Li_0.5CoO₂ reacted with electrolyte at 132℃ with heat generation.In normal usage,the heat is mainly contri-buted by the impedance.When the temperature is over 72℃,exothermic reaction occurs inside the battery,with heat generation of 1 036.7 J/g.
- lithium-ion battery,
- battery material,
- thermal decomposition,
- C80 micro calorimeter
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