公开(公告)号：US11621416B2

公开(公告)日：2023-04-04

申请号：US16754670

申请日：2018-09-27

申请人： CSIR

发明人： Hongze Luo ,  Nomasonto Rapulenyane ,  Bonani Seteni ,  Mkhulu Mathe

IPC分类号： H01M4/505 ,  H01M10/0525 ,  H01M4/04

摘要： A process for producing a lithium-manganese-rich layered oxide cathode material or a lithium-manganese-rich layered oxide cathode material precursor includes co-precipitating a dissolved Li compound and a dissolved Mn salt selected from the group consisting of Mn(CH3COO)2, Mn(NO3)2, MnSO4, and mixtures thereof, from an aqueous solution, in the presence of a precipitator which reacts at least with the dissolved Mn salt to form a carbonate, thereby providing a precipitate which includes MnCO3 and a lithium compound as a lithium-manganese-rich layered oxide cathode material precursor. The invention extends to a lithium-manganese-rich layered oxide cathode material or a lithium-manganese-rich layered oxide cathode material precursor, to an electrochemical cell, and to methods of making and operating an electrochemical cell.