리튬 이차 전지용 양극 활물질 및 그 제조 방법
홍영식, 류광선, 박남규, 박용준, 오향란, 김광만, 이영기, 장순호, 강만구
- 6986968 (2006.01.17)
- 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