한국전기전자재료학회:학술대회논문집 (Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference)

한국전기전자재료학회 (The Korean Institute of Electrical and Electronic Material Engineers)
권호 표지

리튬2차전지용 층상계 $LiNi_{1/3}Mn_{1/3}Co_{1/3}O_2$의 표면개질에 따른 전지특성 변화

Battery Performances of with Surface Treatment of Layered $LiNi_{1/3}Mn_{1/3}Co_{1/3}O_2$ Materials in Lithium Secondary Batteries

  • 김현수 (한국전기연구원 전지연구그룹) ;
  • 공명철 (한국전기연구원 전지연구그룹) ;
  • 김기택 (한국전기연구원 전지연구그룹) ;
  • 문성인 (한국전기연구원 전지연구그룹) ;
  • 윤문수 (한국전기연구원 전지연구그룹) ;
  • 김우성 (대정화금 중앙연구소)
  • 발행 : 2006.06.22
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

$LiNi_{1/3}Mn_{1/3}Co_{1/3}O_2$ cathode material was synthesized by a mixed hydroxide methode. The surface of the $LiNi_{1/3}Mn_{1/3}Co_{1/3}O_2$ was coated with a carbon by using a sol-gel method to improve further its electrochemical properties. Electrochemical studies were performed by assembling 2032 coin cells with lithium metal as an anode. OSC (differential scanning calorimetry) data showed that exothermic reactions of charged to 4.3V vs. Li was suppressed in the carbon-coated materials. The carbon-coated $LiNi_{1/3}Mn_{1/3}Co_{1/3}O_2$ showed the improved rate capability and thermal stability.

키워드