公开(公告)号：US20240313190A1

公开(公告)日：2024-09-19

申请号：US18121345

申请日：2023-03-14

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Xiaowei Yu ,  Ming Wang ,  Ryan Curtis Sekol ,  Diptak Bhattacharya ,  Thomas E. Moylan ,  Jennifer Therese Bracey

IPC: H01M4/04 ,  H01M4/62 ,  H01M4/66 ,  H01M4/74 ,  H01M4/75

CPC classification number: H01M4/0404 ,  H01M4/623 ,  H01M4/662 ,  H01M4/742 ,  H01M4/75

Abstract: A method for manufacturing electrodes for a battery cell includes providing a first free-standing electrode; providing a current collector including holes; providing a second free-standing electrode; and laminating the current collector between the first free-standing electrode and the second free-standing electrode using at least one of heat and pressure and without using a solvent.

公开(公告)号：US20240250233A1

公开(公告)日：2024-07-25

申请号：US18100199

申请日：2023-01-23

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Ming WANG ,  Mary Gilliam ,  Xiaowei Yu ,  Ryan Curtis Sekol ,  Graham Garner

IPC: H01M4/04 ,  H01J37/32 ,  H01M4/62

CPC classification number: H01M4/0435 ,  H01J37/3277 ,  H01M4/0404 ,  H01M4/0471 ,  H01M4/623

Abstract: A method for fabricating an electrode for a battery cell includes supplying a first electrode film from a first roll. The first electrode film comprises an active material for exchanging lithium ions and a binder. The method includes treating a first side of the first electrode film using a first plasma treatment system; supplying a current collector, and heating and pressing the first side of the first electrode film to a first side of the current collector together using first and second rollers.

公开(公告)号：US11942619B2

公开(公告)日：2024-03-26

申请号：US17725117

申请日：2022-04-20

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Erik Damon Huemiller ,  Shaomao Xu ,  Ryan Curtis Sekol ,  Wayne Cai ,  Michael P. Balogh ,  Xiaowei Yu

IPC: H01M4/04 ,  H01M4/38 ,  H01M4/02

CPC classification number: H01M4/0404 ,  H01M4/0409 ,  H01M4/382 ,  H01M2004/021

Abstract: In various aspects, the present disclosure provides a method of manufacturing an electrode for an electrochemical cell. The method includes contacting a solid electrode material and a substrate at an interface. The method further includes preparing a liquid electrode material at the interface by heating at least a portion of the solid electrode material to a first temperature. The first temperature is greater than or equal to a melting point of the solid electrode material. The method further includes creating a layer of the liquid electrode material on the substrate by moving at least one of the solid electrode material and the substrate with respect to the other of the solid electrode material and the substrate. The method further includes forming the electrode by cooling the liquid electrode material to a second temperature. The second temperature is less than or equal to the melting point.