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

다국어 초록 (Multilingual Abstract)

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 (LiPF6) 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 7×10-3 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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