公开(公告)号：US20250023092A1

公开(公告)日：2025-01-16

申请号：US18352096

申请日：2023-07-13

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Gongshin QI ,  Chuanlong Wang ,  Devendrasinh Darbar ,  Wei Li

IPC: H01M10/0525 ,  H01M4/36 ,  H01M4/505 ,  H01M4/583 ,  H01M10/0567 ,  H01M10/0568 ,  H01M10/0569

Abstract: A battery that cycles lithium ions includes a positive electrode and an electrolyte infiltrating the positive electrode. The positive electrode includes an electroactive material comprising a lithium-and manganese-rich oxide. The electrolyte includes an organic solvent, an inorganic lithium salt, and a functional additive comprising lithium fluoride (LiF), lithium phosphate (Li3PO4), or a combination thereof.

公开(公告)号：US20240360003A1

公开(公告)日：2024-10-31

申请号：US18306910

申请日：2023-04-25

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Gongshin QI ,  Devendrasinh Darbar ,  Raneen Taha ,  Wei Li

IPC: C01G53/00

CPC classification number: C01G53/50 ,  C01G53/006 ,  C01P2004/90 ,  C01P2006/40

Abstract: A positive electrode material including a layered lithium- and manganese-rich nickel oxide (LMR) doped with an alkali metal and/or an alkaline earth metal. The positive electrode material may be manufactured by preparing a mixture comprising a transition metal carbonate, a dopant metal carbonate, and a lithium source, and then calcining the mixture to form the alkali metal and/or alkaline earth metal-doped LMR.

公开(公告)号：US20250105270A1

公开(公告)日：2025-03-27

申请号：US18471510

申请日：2023-09-21

Applicant: GM Global Technology Operations LLC

Inventor： Vamakshi Yadav ,  Devendrasinh Darbar ,  Raneen Taha ,  Wei Li

IPC: H01M4/505 ,  H01M4/04 ,  H01M10/0525

Abstract: A cathode active particles for use in a cathode of a lithium ion battery comprising a core includes a lithium-manganese-rich oxide and a coating on the core, wherein the coating includes a lithium manganese spinel. The cathode active particle can be made by preparing a dispersion of particles comprising a lithium-manganese-rich metal oxide in an aqueous solution of a salt of a transition metal oxide. The dispersion is mixed, and heated to a temperature in a range of 60 to 125° C. The solids are separated from the dispersion, and calcined. The cathode active particles can be used in cathode and in a battery comprising such cathode.