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구분 출원국
출원년도 ~ 키워드

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등록 리튬 이차 전지용 양극 활물질 및 그 제조 방법

리튬 이차 전지용 양극 활물질 및 그 제조 방법
이미지 확대
발명자
홍영식, 류광선, 박남규, 박용준, 오향란, 김광만, 이영기, 장순호, 강만구
출원번호
10323731 (2002.12.20)
공개번호
20040072069 (2004.04.15)
등록번호
6986968 (2006.01.17)
출원국
미국
협약과제
02MB1100, 리튬금속 고분자 2차전지 기술개발, 장순호
초록
A cathode active material for a lithium secondary cell used in a cellular phone is disclosed. The cathode active material for the lithium secondary cell and the method the same having a high capacity and a long lifetime, different from LiCoO2 and LiMn2O4, Li(Ni, Co)O2, and V-system oxide that has been researched as the active material for substituting LiCoO2 are provided. The cathode active material for the lithium secondary cell in the next formula 1 is obtained by heating or chemically treating diadochite [Fe2(PO4)(SO4)(OH).6H2O] that is the mineral containing PO43−, SO42−, and OH−.LiaFebMc(PO4)x(SO4)y(OH)z   (1)In the formula, M is at least one element selected from a radical consisting of Mg, Ti, Cr, Mn, Co, Ni, Cu, Zn, Al, and Si, with 0≦a, c≦0.5, 1≦b≦2, 0.5≦x, y, z≦1.5.
KSP 제안 키워드
Active materials, Formula 1, High-capacity, Lithium secondary cell, Long Lifetime, Secondary cell, cathode active material, cellular phone