期刊
JOURNAL OF HAZARDOUS MATERIALS
卷 167, 期 1-3, 页码 1209-1214出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jhazmat.2009.01.125
关键词
Lithium ion battery; Solvent; Graphite; Thermal stability; C80
资金
- National Science Foundation of China [20603034]
- National Key Technologies RD Program [2006BAK06B02]
The thermal stability of lithiated graphite in the presence of solvents, electrolytes and LiPF6 salt was studied using C80 micro-calorimeter. The presence of cyclic carbonates or linear carbonates increases the activity of LixC6-solvent coexisting system, especially for the LixC6-linear carbonates one. LiPF6 was detected that it increases the activity greatly of its coexisting system with lithiated graphite. The coexisting system of LixC6 with the electrolyte of LiPF6/ethylene carbonate + diethyl carbonate shows less thermal stability, which is attributed to the activity between diethyl carbonate and LixC6. This also agrees with the experiment result of LixC6-diethyl carbonate coexisting system. (C) 2009 Elsevier B.V. All rights reserved.
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