公开(公告)号：US20250122095A1

公开(公告)日：2025-04-17

申请号：US18693203

申请日：2022-10-05

Applicant: BASF SE

Inventor： Philipp KURZHALS ,  Heino SOMMER ,  Felix Florian RIEWALD

IPC: C01G53/50 ,  H01M10/0525

Abstract: Disclosed herein is a process for making an electrode active material. The process includes the following steps: (a) providing an (oxy)hydroxide of TM, where TM is a transition metal and includes nickel and, optionally, at least one of cobalt and manganese, (b) mixing the (oxy)hydroxide of TM with 75 to 85 mol-% of a lithium source, referring to TM, and at least one compound of Mg or Al, (c) treating the resultant mixture at a temperature in the range of from 400 to 700° C., thereby obtaining a powder, (d) mixing the powder from step (c) with a source of lithium and with at least one compound of Mg or Al and with at least one compound of Nb, Ta, W, Ti or Zr, and (e) treating the mixture obtained from step (d) thermally at a temperature in the range of from 550 to 800° C.

公开(公告)号：US20240279077A1

公开(公告)日：2024-08-22

申请号：US18565365

申请日：2022-06-15

Applicant: BASF SE

Inventor： Robert Matthew LEE ,  Felix Florian RIEWALD ,  Philipp KURZHALS ,  Heino SOMMER

IPC: C01G53/00 ,  H01M4/02 ,  H01M4/131 ,  H01M4/62

CPC classification number: C01G53/50 ,  H01M4/131 ,  H01M4/625 ,  H01M2004/028

Abstract: Disclosed herein is a particulate material of the composition LiaMgb)i+x(NicM1dM2e)1−xO2 where M1 is selected from Ti, Zr, Nb, Mo, and W, and combinations of at least two thereof; M2 is selected from Al, Co, Mn, and combinations of at least two thereof; a:b is in the range of from 100:1 to 400:1, and a+b=1; c:d is in the range of from 40:1 to 250:1, and c:e is in the range of from 12:1 to 50:1; and c+d+e=1; the total molar ratio of (Li+Mg) to (Ni+M1+M2) is in the range of from 1:1 to 1.05:1; and 0.00≤x≤0.05, where the particulate material has an average particle diameter (D50) in the range of from 2 to 20 μm.

公开(公告)号：US20230249982A1

公开(公告)日：2023-08-10

申请号：US18001273

申请日：2021-06-18

Applicant: BASF SE

Inventor： Heino SOMMER ,  Felix Florian RIEWALD

IPC: C01G53/00

CPC classification number: C01G53/50 ,  C01P2002/85 ,  C01P2004/03 ,  C01P2004/32 ,  C01P2004/50 ,  C01P2004/61 ,  C01P2006/40 ,  C01P2006/12

Abstract: Particulate materials of the composition Li1+xTM1−xO2 wherein x is in the range of from −0.02 to +0.05, TM comprises at least 94 mol-% nickel and up to 6 mol-% of at least three metals M1 selected from Co, Mn, Cu, Mg, Fe, B, Al, Ce, Sn, Zr, Zn, Nb, Ta, Y, Mo and W, wherein said metals M1 are enriched at the outer surface of the secondary particles of said particulate material, and wherein said particulate material has an average particle diameter (D50) in the range of from 2 to 20 μm.