公开(公告)号：US12283689B2

公开(公告)日：2025-04-22

申请号：US17595862

申请日：2020-06-29

Applicant: BASF SE

Inventor： Zhenji Han ,  Junji Kashiwagi ,  Suhao Wei ,  Jumpei Nakayama ,  Daisuke Morita

IPC: H01M4/36 ,  H01M4/04 ,  H01M4/505 ,  H01M4/525 ,  H01M4/02

Abstract: Process for making a partially coated electrode active material wherein said process comprises the following steps: (a) Providing an electrode active material according to general formula Li1+xTM1−xO2, wherein TM is Ni and, optionally, at least one of Co and Mn, and, optionally, at least one element selected from Al, Mg, Ba and B, transition metals other than Ni, Co, and Mn, and x is in the range of from zero to 0.2, wherein at least 50 mole-% of the transition metal of TM is Ni, (b) treating said electrode active material with an aqueous medium, (c) partially removing water by solid-liquid separation method, (d) treating the residue with a compound of Me, Me being selected from at least one of aluminum, boron, phosphorus, antimony, magnesium, vanadium, and tellurium, and (e) treating the residue thermally.

公开(公告)号：US12119475B2

公开(公告)日：2024-10-15

申请号：US17250955

申请日：2019-09-20

Applicant: BASF SE

Inventor： Zhenji Han ,  Junji Kashiwagi ,  Suhao Wei ,  Jumpei Nakayama ,  Daisuke Morita ,  Martin Schulz-Dobrick

IPC: H01M4/1391 ,  H01M4/04 ,  H01M4/131 ,  H01M4/36 ,  H01M4/505 ,  H01M4/525 ,  H01M4/62 ,  H01M10/0525

CPC classification number: H01M4/0402 ,  H01M4/1391 ,  H01M4/366 ,  H01M4/505 ,  H01M4/525 ,  H01M4/623 ,  H01M10/0525 ,  H01M4/0416 ,  H01M4/0471 ,  H01M4/131

Abstract: Process for making an at least partially coated electrode active material wherein said process comprises the following steps: (a) Providing an electrode active material according to general formula Li1−xTM1−xO2, wherein TM is Ni and, optionally, at least one of Co and Mn, and, optionally, at least one element selected from Al, Mg, Ba and B, transition metals other than Ni, Co, and Mn, and x is in the range of from zero to 0.2, wherein at least 50 mole-% of the transition metal of TM is Ni, (b) treating said electrode active material with an aqueous formulation containing a compound of Me wherein Me is selected from Sb, Mg, Zn, Sn, and Te, (c) separating off the water, (d) treating the residue thermally.