| Cross-linkable Polymer Matrix for Enhanced Thermal Stability of Succinonitrile-based Polymer Electrolyte in Lithium Rechargeable Batteries |
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Myung-Hyun Ryou, Dong-Jin Lee, Je-Nam Lee, Hong-Kyeong Lee, Myung-Won Seo, Hye-Won Lee, Weon-Ho Shin, Yong-Min Lee, Jang-Wook Choi, Jung-Ki Park |
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Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology;Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology;Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology;Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology;Department of Applied Chemistry, Hanbat National University;Department of Applied Chemistry, Hanbat National University;Graduate School of EEWS (WCU), Korea Advanced Institute of Science and Technology;Department of Applied Chemistry, Hanbat National University;Graduate School of EEWS (WCU), Korea Advanced Institute of Science and Technology;Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology; |
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| Abstract |
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A polymer electrolyte was prepared by using polyvinylidenefluoride-co-hexafluoropropylene (PVdF-HFP) or poly(ethylene glycol) dimethacrylate (PEGDMA) as polymer matrices, succinonitrile as an additive, and lithium perchlorate as a lithium salt. Compared to the polymer electrolyte employing PVdF-HFP, the PEGDMA-based polymer electrolyte exhibits substantially superior thermal stability when exposed to high temperatures. Nonetheless, the ionic conductivity of the PEGDMA-based polymer electrolyte was preserved in a wide temperature range between $-20^{circ}C$ and $80^{circ}C$. |
| Key Words:
Cross-linking polymer, Lithium ion batteries, Polymer electrolyte, Plastic crystal, Succinonitrile |
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