公开(公告)号：US20220344634A1

公开(公告)日：2022-10-27

申请号：US17662456

申请日：2022-05-09

Applicant: BASF SE

Inventor： Manuel Alejandro MENDEZ AGUDELO ,  Johannes David HOECKER ,  Sven HOLZMANN ,  Bernd FIECHTER ,  Marion KOCH ,  Lucas MONTAG ,  Patrick KRIEG ,  Volker SCHMITT

IPC: H01M4/1391 ,  H01M4/36 ,  H01M4/525 ,  H01M4/583 ,  H01M4/62 ,  H01M4/66 ,  H01M10/0525 ,  H01M10/0569 ,  C08G79/04

Abstract: Process for making a cathode comprising the following steps (a) Providing a cathode active material selected from layered lithium transition metal oxides, lithiated spinels, lithium transition metal phosphate with olivine structure, and lithium nickel-cobalt aluminum oxides, (b) treating said cathode active material with an oligomer bearing units according to general formula (I a), wherein R1 are the same or different and selected from hydrogen and C1-C4-alkyl, aryl, and C4-C7-cycloalkyl, R2 and R3 are selected independently at each occurrence from phenyl and C1-C8-alkyl, C4-C7-cycloalkyl, C1-C8-haloalkyl, OPR1(O)—*, and —(CR92)p—Si(R2)2—* wherein one or more non-vicinal CR92-groups may be replaced by oxygen, R9 is selected independently at each occurrence from H and C1-C4-alkyl, and p is a variable from zero to 6, and wherein the overall majority of R2 and R3 is selected from C1-C8-alkyl, and, optionally, at least one of carbon in electrically conductive form and, optionally, a binder, (c) applying a slurry of said treated cathode active material to a current collector, and (d) at least partially removing solvent used in step (c).

公开(公告)号：US20200303724A1

公开(公告)日：2020-09-24

申请号：US16769414

申请日：2018-12-04

Applicant: BASF SE

Inventor： Manuel Alejandro MENDEZ AGUDELO ,  Johannes David HOECKER ,  Sven HOLZMANN ,  Bernd FIECHTER ,  Marion KOCH ,  Lucas MONTAG ,  Patrick KRIEG ,  Volker SCHMITT

IPC: H01M4/1391 ,  H01M4/36 ,  H01M4/525 ,  H01M4/62 ,  H01M4/583 ,  H01M4/66 ,  H01M10/0525 ,  H01M10/0569

Abstract: Process for making a cathode comprising the following steps (a) Providing a cathode active material selected from layered lithium transition metal oxides, lithiated spinels, lithium transition metal phosphate with olivine structure, and lithium nickel-cobalt aluminum oxides, (b) treating said cathode active material with an oligomer bearing units according to general formula (I a), wherein R1 are the same or different and selected from hydrogen and C1-C4-alkyl, aryl, and C4-C7-cycloalkyl, R2 and R3 are selected independently at each occurrence from phenyl and C1-C8-alkyl, C4-C7-cycloalkyl, C1-C8-haloalkyl, OPR1(O)—*, and —(CR92)p—Si(R2)2—* wherein one or more non-vicinal CR92 groups may be replaced by oxygen, R9 is selected independently at each occurrence from H and C1-C4-alkyl, and p is a variable from zero to 6, and wherein the overall majority of R2 and R3 is selected from C1-C8-alkyl, and, optionally, at least one of carbon in electrically conductive form and, optionally, a binder, c) applying a slurry of said treated cathode active material to a current collector, and d) at least partially removing solvent used in step (c).