公开(公告)号：WO2022078980A1

公开(公告)日：2022-04-21

申请号：PCT/EP2021/078103

申请日：2021-10-12

Applicant: BASF SE

Inventor： TAKEUCHI, Ryosuke ,  SHIN, Ji-Yong ,  ERI, Numata ,  SEITARO, Ito ,  ERK, Christoph

IPC: H01M4/525 ,  C01G53/00 ,  H01M10/052

Abstract: The present invention is directed towards a process for making an electrode active material according to general formula Li1+(TM1-yM1y)1-xO2, wherein TM includes a combination of Ni and at least one of Co, Mn and Al, M1 is selected from Nb and Ta, and at least one of Co, Mn and Al, and optionally at least one more metal selected from Mg, Al, Ti, Zr, and W, y is in the range of from 0.001 to less than 0.01, and x is in the range of from zero to 0.2, said process comprising the following steps: (a) mixing (A) a mixed oxide or (oxy)hydroxide of Mn, Co and Ni, and (B) at least one lithium compound selected from lithium hydroxide, lithium oxide and lithium carbonate, and (C) an amorphous compound of Nb or Ta, (b) Subjecting said mixture to heat treatment at a temperature in the range of from 700 to 1000°C, wherein at least 60 mole-% of the transition metal of TM is Ni.