公开(公告)号：US20190252671A1

公开(公告)日：2019-08-15

申请号：US15894368

申请日：2018-02-12

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Yan WU ,  Leah NATION ,  Raghunathan K

IPC: H01M4/131 ,  H01M10/0525 ,  C01G53/00

CPC classification number: H01M4/131 ,  C01G53/50 ,  C01P2002/54 ,  C01P2002/72 ,  C01P2002/82 ,  C01P2004/03 ,  C01P2006/40 ,  H01M10/0525 ,  H01M2004/028

Abstract: A lithium ion battery has a positive electrode or cathode having a silicon modified mixed metal oxide including a compound having empirical formula Li[LiyMna-xSixMIIIbMIIc]O2  (I) wherein y=0.01-0.33; x=0.001-0.15; a, b, and c are each greater than zero; MIII is a trivalent metal or a combination of metals with an average valence of +3; MII is a divalent metal or a combination of metals with an average valence of +2; and y+4a+3b+2c is equal to 3 or about 3. Such a silicon modified mixed metal oxide may be exemplified by formula: Li [Li0.2 Mn0.49 Si0.05 Ni0.13 Co0.13]O2.

公开(公告)号：US20250158039A1

公开(公告)日：2025-05-15

申请号：US18915027

申请日：2024-10-14

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Dewen KONG ,  Meiyuan WU ,  Yan WU ,  Jingyuan LIU ,  Haijing LIU

IPC: H01M4/36 ,  H01M4/02 ,  H01M4/131 ,  H01M4/1391 ,  H01M4/525 ,  H01M4/62 ,  H01M10/42

Abstract: A cathode electrode includes a cathode current collector and a cathode active material layer comprising a plurality of cathode active material particles including nickel and a plurality of nano-particles that are mechanically inlaid on outer surfaces of the plurality of cathode active material particles to form a plurality of inlaid cathode active material particles.