DOI QR코드

DOI QR Code

Cross-linkable Polymer Matrix for Enhanced Thermal Stability of Succinonitrile-based Polymer Electrolyte in Lithium Rechargeable Batteries

  • Ryou, Myung-Hyun ;
  • Lee, Dong-Jin ;
  • Lee, Je-Nam ;
  • Lee, Hong-Kyeong ;
  • Seo, Myung-Won ;
  • Lee, Hye-Won ;
  • Shin, Weon-Ho ;
  • Lee, Yong-Min ;
  • Choi, Jang-Wook ;
  • Park, Jung-Ki
  • Received : 2011.12.03
  • Accepted : 2011.12.27
  • Published : 2011.12.31

Abstract

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 $80^{\circ}C$.

Keywords

Cross-linking polymer;Lithium ion batteries;Polymer electrolyte;Plastic crystal;Succinonitrile

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Cited by

  1. Effect of LiFePO 4 cathode density and thickness on electrochemical performance of lithium metal polymer batteries prepared by in situ thermal polymerization vol.154, 2015, https://doi.org/10.1016/j.electacta.2014.12.051

Acknowledgement

Grant : Human Resource Training Project for Regional Innovation

Supported by : National Research Foundation of Korea, Korea Science & Engineering Foundation (KOSEF)