Non-aqueous electrolyte secondary battery, positive electrode active material and method of manufacturing the same
    1.
    发明申请
    Non-aqueous electrolyte secondary battery, positive electrode active material and method of manufacturing the same 审中-公开
    非水电解质二次电池,正极活性物质及其制造方法

    公开(公告)号:US20040191628A1

    公开(公告)日:2004-09-30

    申请号:US10801655

    申请日:2004-03-17

    摘要: As a positive electrode active material, a lithium transition metal complex oxide having a layered rock-salt structure containing lithium (Li) and containing magnesium atoms (Mg) substituted for part of lithium atoms (Li) is used. The lithium transition metal complex oxide is formed by chemical or electrochemical substitution of Mg atoms for part of Li atoms in LiCoO2, LiMnO2, LiFeO2, LiNiO2, or the like. A cell is prepared in which a negative electrode 2 and a positive electrode 1 including the lithium transition metal complex oxide (positive electrode active material) are disposed in a non-aqueous electrolyte 5 including a lithium salt, and part of Li in the lithium transition metal complex oxide is extracted by discharging the cell. Then, the electrolyte including Li is replaced with an electrolyte including Mg; and the cell is discharged, so that Mg atoms are substituted for the part of Li atoms in the lithium transition metal complex oxide.

    摘要翻译: 作为正极活性物质,使用具有锂(Li)层状岩盐结构并含有镁原子(Mg)取代部分锂原子(Li)的锂过渡金属络合物氧化物。 锂过渡金属复合氧化物通过Mg原子在LiCoO 2,LiMnO 2,LiFeO 2,LiNiO 2等中的部分Li原子的化学或电化学取代而形成。 制备电池,其中将包含锂过渡金属络合物(正极活性物质)的负极2和正极1设置在包含锂盐的非水电解质5中,并且在锂转变中的一部分Li 通过排出电池提取金属复合氧化物。 然后,将包含Li的电解质替换为包含Mg的电解质; 并且电池被放电,使得Mg原子代替锂过渡金属复合氧化物中的部分Li原子。