Multi-Functional Dual-Layer Polymer Electrolytes for Lithium Metal Polymer Batteries

We prepared a novel multi-functional dual-layer polymer electrolyte by impregnating the interconnected pores with an ethylene carbonate (EC)/dimethyl carbonate (DMC)/lithium hexafluorophosphate $(LiPF_6)$ solution. The first layer, based on a microporous polyethylene, is incompatible with a liquid e...

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Published in:ETRI journal 2004, 26(4), , pp.285-291
Main Authors: Lee, Young-Gi, Ryu, Kwang-Sun, Chang, Soon-Ho
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Language:Korean
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전자/정보통신공학
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Ryu, Kwang-Sun
Chang, Soon-Ho
description We prepared a novel multi-functional dual-layer polymer electrolyte by impregnating the interconnected pores with an ethylene carbonate (EC)/dimethyl carbonate (DMC)/lithium hexafluorophosphate $(LiPF_6)$ solution. The first layer, based on a microporous polyethylene, is incompatible with a liquid electrolyte, and the second layer, based on poly (vinylidenefluoride-co-hexafluoropropylene), is submicroporous and compatible with an electrolyte solution. The maximum ionic conductivity is $7{\times}10^{-3}S/cm$ at ambient temperature. A unit cell using the optimum polymer electrolyte showed a reversible capacity of 198 mAh/g at the 500th cycle, which was about 87% of the initial value.
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title Multi-Functional Dual-Layer Polymer Electrolytes for Lithium Metal Polymer Batteries
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