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Detail
Journal Article
Multi-Functional Dual-Layer Polymer Electrolytes for Lithium Metal Polymer Batteries
- Authors
- Young Gi Lee, Kwang Sun Ryu, Soon Ho Chang
- Issue Date
- 2004-08
- Citation
- ETRI Journal, v.26, no.4, pp.285-291
- ISSN
- 1225-6463
- Publisher
- 한국전자통신연구원 (ETRI)
- Language
- English
- Type
- Journal Article
- 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.
- KSP Keywords
- Ambient Temperature, Collaborative Optimization(CO), Dimethyl carbonate(DMC), Dual layer, First layer, Initial value, Interconnected pores, Liquid electrolyte, Lithium hexafluorophosphate, Lithium metal polymer batteries, Microporous polyethylene