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Electrochemical Performance of Tricredyl Phosphate and Trispentafluorophenly Phosphine as Flame Retardant Additives for Lithium-ion Batteries

리튬이온전지용 난연성 첨가제(TCP, TFPP)의 전기화학적 특성

  • 안세영 (한국전기연구원 전지연구그룹) ;
  • 김기택 (한국전기연구원 전지연구그룹) ;
  • 김현수 (한국전기연구원 전지연구그룹) ;
  • 남상용 (경상대학교 고분자공학과 나노규브 사업단)
  • Published : 2007.09.01

Abstract

Flame retardant(FR) properties were investigated with tricredyl phosphate(TCP) and tris(pentafluorophenyl)phosphine(TFPP) as additives for lithium-ion batteries. Thermal stability was improved with additives in $Li/LiNi\frac{1}{3}Mn\frac{1}{3}Co\frac{1}{3}O_2$ cells comparing to non-additive electrolytes. Oxygen evolution reaction of the cathode material was delayed to up $55^{\circ}C$, from $275^{\circ}C\;to\;330^{\circ}C$. Electrolytes with the 1 wt.% additives provided good FR properties while the resonable battery performance is maintained.

Keywords

References

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