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Co3(PO4)2로 표면 코팅한 Li[Co0.1Ni0.15Li0.2Mn0.55]O2의 리튬 2차 전지용 양극재 특성
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- Issue Date
- 2008-02
- Citation
- 한국세라믹학회지, v.45, no.2, pp.112-118
- ISSN
- 1229-7801
- Publisher
- 한국세라믹학회
- Language
- Korean
- Type
- Journal Article
- Project Code
- 07MB2600, Components/Module technology for Ubiquitous Terminals, Kim Jongdae
- Abstract
- To prepare the high-capacity cathode material with improved electrochemical performances, nanoparticles of Co3(PO4)2 were coated on the powder surface of Li[Co0.1Ni0.15Li 0.2Mn0.55]O2, which was already synthesized by simple combustion method. The coated powders after the heat treatment at > 700°C surely showed well-structured crystalline property with nanoscale surface coating layer, which was consisted of LiCoPO4 phase formed from the reaction bwtween Co3(PO4)2 and lithium impurities. In addition, cycle performance was particularly improved by the Co3(PO4)2-coating for the cathode material for lithium rechargeable batteries.
- KSP Keywords
- Cathode materials, Coated powders, Crystalline properties, Cycle performance, Electrochemical performance, High-capacity cathode, Powder surface, coating layer, combustion method, heat treatment, lithium rechargeable battery