Citation:
Tang Zhi-uan, WANG Zhan-Liang, XUE Jian-Jun, LIU Chun-Yan. Influence of Plasticizers on Polymer Electrolyte Lithium Ion Battery[J]. Chinese Journal of Applied Chemistry,
;2002, 19(6): 560-563.
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The influences of plasticizers EC(ethylene carbonate), DME(dimethoxy ethane), DEC(diethyl-carbonate), EMC(methyl ethyl carbonate) and PC(propylene carbonate) in various combination on the conductivity and performance of gelled polymer electrolytes at different temperatures have been investigated as functions of charge-discharge properties of LiCoO2 and graphitized carbon fiber. The highest conductivity of gel polymer electrolyte was obtained with plasticizers EC-DME as 0.188 S/m at room temperature. The first discharge specific capacity of LiCoO2 with combination plasticizer was about 145 mA·h/g, and the effect of plasticizer is not obvious. The discharge specific capacity of graphitized carbon fiber in EC DEC EMC was 300 mA·h/g, with the initial coulomb efficiency being about 95%.
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Keywords:
- polymer electrolyte,
- lithium ion battery,
- carbon fiber,
- LiCoO2
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