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Optimization Study on Polymerization of Crosslink-type Gel Polymer Electrolyte for Lithium-ion Polymer Battery

리튬이온폴리머전지용 가교형 겔폴리머전해질의 중합조건 최적화 연구

  • 김현수 (한국전기연구원 전지연구그룹) ;
  • 문성인 (한국전기연구원 전지연구그룹) ;
  • 김상필 ((주)나래나노텍 기술연구소)
  • Published : 2005.01.01

Abstract

In this work, polymerization conditions of the gel polymer electrolyte (GPE) were studied to obtain better electrochemical performances in a lithium-ion polymer battery. When the polymerization temperature and time of the GPE were 70$^{\circ}C$ and 70 min, respectively, the lithium polymer battery showed excellent a rate capability and cycleability. The TMPETA (trimethylolpropane ethoxylate triacrylate)/TEGDMA (triethylene glycol dimethacrylate)-based cells prepared under optimized polymerization conditions showed excellent rate capability and low-temperature performances: The discharge capacity of cells at 2 Crate showed 92.1 % against 0.2C rate. The cell at -20 $^{\circ}C$ also delivered 82.4 % of the discharge capacity at room temperature.

Keywords

References

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