한국세라믹학회지 (Journal of the Korean Ceramic Society)

  • 제45권2호
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  • Pages.112-118
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  • 2008
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  • 1229-7801(pISSN)
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  • 2234-0491(eISSN)
한국세라믹학회 (The Korean Ceramic Society)
권호 표지
DOI QR코드

DOI QR Code

Co3(PO4)2로 표면코팅한 Li[Co0.1Ni0.15Li0.2Mn0.55]O2의 리튬 2차전지용 양극재 특성

Cathode Characteristics of Co3(PO4)2-Coated [Co0.1Ni0.15Li0.2Mn0.55]O2 for Lithium Rechargeable Batteries

  • 이상효 (한밭대학교 재료공학과) ;
  • 김광만 (한국전자통신연구원 IT-NT 그룹 이오닉스소자팀) ;
  • 구본급 (한밭대학교 재료공학과)
  • Lee, Sang-Hyo (Department of Materials Engineering, Hanbat National University) ;
  • Kim, Kwang-Man (Ionics Devices Team, IT-NT Group, Electronics and Telecommunications Research Institute (ETRI)) ;
  • Koo, Bon-Keup (Department of Materials Engineering, Hanbat National University)
  • 발행 : 2008.02.29
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초록

To prepare the high-capacity cathode material with improved electrochemical performances, nanoparticles of $C0_3(PO_4)_2$ were coated on the powder surface of $Li[Co_{0.1}Ni_{0.15}Li_{0.2}Mn_{0.55}]O_2$, which was already synthesized by simple combustion method. The coated powders after the heat treatment at >$700^{\circ}C$ surely showed well-structured crystalline property with nanoscale surface coating layer, which was consisted of $LiCOPO_4$ phase formed from the reaction bwtween $CO_3(PO_4)_2$ and lithium impurities. In addition, cycle performance was particularly improved by the $CO_3(PO_4)_2$-coating for the cathode material for lithium rechargeable batteries.

키워드

참고문헌

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