公开(公告)号：US20230343917A1

公开(公告)日：2023-10-26

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

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.

公开(公告)号：US20250149536A1

公开(公告)日：2025-05-08

申请号：US18502239

申请日：2023-11-06

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Chuanlong WANG ,  Xiaowei YU ,  Ming WANG ,  Xiaosong HUANG ,  Ryan Curtis SEKOL

IPC: H01M4/04 ,  H01M4/02

Abstract: A method for manufacturing patterned electrodes includes extruding a mixture including an active material, a conductive additive, a binder, and a solvent from an extruder to form an active material layer; laminating the active material layer and a current collector; and patterning the active material layer using a patterned roller including a plurality of projections that form a plurality of features extending into the active material layer.

公开(公告)号：US20240290950A1

公开(公告)日：2024-08-29

申请号：US18115429

申请日：2023-02-28

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC ,  THE REGENTS OF THE UNIVERSITY OF MICHIGAN

Inventor： Shaomao XU ,  Ming WANG ,  Ryan Curtis SEKOL ,  Xiaowei YU ,  Erik Damon HUEMILLER ,  Catherine HASLAM ,  Jeffrey S. SAKAMOTO

IPC: H01M4/36 ,  H01M4/04 ,  H01M4/40

CPC classification number: H01M4/366 ,  H01M4/0435 ,  H01M4/0471 ,  H01M4/0483 ,  H01M4/405

Abstract: A method for simultaneously forming alkali metal layers includes heating a laminate structure including a top layer, a bottom layer, and an alkali metal layer sandwiched between opposing facing surfaces of the top layer and the bottom layer. The laminate structure is heated to a peel temperature to at least partially melt the alkali metal layer and form a volume of molten alkali metal at the location of a peel site within the alkali metal layer. The top layer and the bottom layer apart from each other such that the alkali metal layer splits internally at the location of the peel site and is divided between the top layer and the bottom layer.

公开(公告)号：US20250149532A1

公开(公告)日：2025-05-08

申请号：US18500339

申请日：2023-11-02

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Ming WANG ,  Mary GILLIAM ,  Shaomao XU ,  Diptak BHATTACHARYA ,  Xiaowei YU

IPC: H01M4/04 ,  C23C2/00 ,  C23C2/02 ,  C23C2/04 ,  C23C24/10 ,  H01M4/02 ,  H01M4/1395 ,  H01M4/38 ,  H01M4/66

Abstract: A method for manufacturing an anode electrode includes supplying an anode current collector; coating a first portion of the anode current collector with a precursor coating; not coating a second portion of the anode current collector with the precursor coating; treating the anode current collector with plasma to at least one of decrease lithium wettability of the first portion and to increase lithium wettability of the second portion; and coating the anode current collector with lithium metal to form an anode active material layer.

公开(公告)号：US20240154151A1

公开(公告)日：2024-05-09

申请号：US17983612

申请日：2022-11-09

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Xiaowei YU ,  Erik Damon Huemiller ,  Shaomao Xu ,  Wayne Cai ,  Yaoyu Ren

IPC: H01M10/0525 ,  H01M4/04 ,  H01M4/134

CPC classification number: H01M10/0525 ,  H01M4/0402 ,  H01M4/134

Abstract: A lithium addition system includes: a lithium addition head configured to receive a filament of lithium; and a fill control module configured to: identify a defect in a layer of lithium; actuate an actuator and move the lithium addition head to a location of the defect and vertically above the defect; and apply one of power and energy to the filament thereby (a) at least one of softening, melting, and deforming the filament and (b) depositing lithium from the filament into the defect in the layer of lithium.