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PRODUCTION METHOD FOR POSITIVE ELECTRODE ACTIVE MATERIAL USED IN LITHIUM SECONDARY BATTERIES 发明申请

2023-04-03 1510 1352K 0

专利信息

申请日期 2025-07-11 申请号 WOJP12074515
公开(公告)号 WO2013047495A1 公开(公告)日 2013-04-04
公开国别 WO 申请人省市代码 全国
申请人 SHOWA DENKO K K
简介 This production method for positive electrode active material used in lithium secondary batteries is characterized in that an olivine LiMPO4 is produced by : mixing lithium phosphate having a particle diameter D90 of 100μm or smaller, an M-element-containing compound (therein M represents 1 or more elements selected from the group consisting of Mg, Ca, Fe, Mn, Ni, Co, Zn, Ge, Cu, Cr, Ti, Sr, Ba, Sc, Y, Al, Ga, In, Si, B, and the rare earth elements) having a particle diameter D90 of 100μm or smaller, and water; adjusting the concentration of M in the water to 4 mol/L or higher to obtain a starting material; and conducting hydrothermal synthesis using the starting material.


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