公开(公告)号：US20230087183A1

公开(公告)日：2023-03-23

申请号：US17906278

申请日：2021-03-22

Applicant: BASF SE

Inventor： Xiaohan WU ,  Doron AURBACH ,  Hadar SCLAR ,  Boris MARKOVSKY ,  Sandipan MAITI

IPC: H01M4/485 ,  H01M4/04 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0525

Abstract: Process for making a cathode active material for a lithium ion battery, said process comprising the following steps: (a) treating a mixed oxide according to general formula Li1+xTM1−xO2 with at least one aromatic di-, tri- or tetracarboxylic acid or with a combination of at least two of the foregoing, wherein TM is a combination of Mn and Ni and, optionally, at least one more metal selected from Ba, Al, Co, Ti, Zr, W, Fe, Cr, K, Mo, Nb, Ta, Mg and V, and x is in the range of from zero to 0.2, (b) subjecting said precursor to heat treatment a temperature in the range of from 500 to 800° C.