公开(公告)号：US20220320496A1

公开(公告)日：2022-10-06

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 ,  H01M4/505 ,  H01M4/525 ,  H01M4/04

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：US20230060044A1

公开(公告)日：2023-02-23

申请号：US17758776

申请日：2021-03-05

Applicant: BASF SE

Inventor： Zhenji HAN ,  Suhao WEI ,  Martin SCHULTZ-DOBRICK ,  Hitoshi FUKUMITSU ,  Masatoshi MATSUMOTO ,  Jumpei NAKAYAMA ,  Junji KASHIWAGI ,  Daisuke MORITA

IPC: H01M4/36 ,  H01M4/505 ,  H01M4/525 ,  H01M4/04 ,  C01G53/00

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, and Ba, 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 solid residue with an aqueous formulation of at least one heteropolyacid or its respective ammonium or lithium salt, (e) treating the residue thermally.

公开(公告)号：US20210367222A1

公开(公告)日：2021-11-25

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

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.

公开(公告)号：US20210328218A1

公开(公告)日：2021-10-21

申请号：US17250954

申请日：2019-09-20

Applicant: BASF SE

Inventor： Christoph ERK ,  Zhenji HAN ,  Junji KASHIWAGI ,  Suhao WEI ,  Takayuki YAMAMURA ,  Daisuke MORITA ,  Martin SCHULZ-DOBRICK

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

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+1TM1−xO2, wherein TM comprises Ni and, optionally, at least one transition metal selected from 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 −0.05 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 an inorganic aluminum compound dispersed or slurried in water, (c) separating off the water, (d) thermal treatment of the material obtained from step (c).