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학술지 Co3(PO4)2로 표면 코팅한 Li[Co0.1Ni0.15Li0.2Mn0.55]O2의 리튬 2차 전지용 양극재 특성
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저자
이상효, 김광만, 구본급
발행일
200802
출처
한국세라믹학회지, v.45 no.2, pp.112-118
ISSN
1229-7801
출판사
한국세라믹학회
DOI
https://dx.doi.org/10.4191/KCERS.2008.45.2.112
협약과제
07MB2600, 유비쿼터스 단말용 부품 모듈, 김종대
초록
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.
키워드
Cathode material, Co (PO ) 3 4 2, Electrochemical property, Lithium rechageable battery
KSP 제안 키워드
Cathode materials, Coated powders, Crystalline properties, Cycle performance, Electrochemical performance, High-capacity cathode, Powder surface, coating layer, combustion method, electrochemical property, heat treatment