• 제목/요약/키워드: Lithium rechageable battery

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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;김광만;구본급
    • 한국세라믹학회지
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    • 제45권2호
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    • pp.112-118
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    • 2008
  • 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.