公开(公告)号：US20240133962A1

公开(公告)日：2024-04-25

申请号：US17971774

申请日：2022-10-23

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Robin JAMES ,  Megan E. Mcgovern ,  Dmitriy Bruder ,  Whitney Ann Poling ,  Erik Damon Huemiller ,  Shaomao Xu ,  Caleb Reese

IPC: G01R31/385 ,  H01M10/0525

CPC classification number: G01R31/3865 ,  H01M10/0525

Abstract: A method for validating non-destructive, electromagnetic methods in atmospheric conditions of a battery cell intended to include a lithium metal layer includes selecting a lithium mimic metal layer to replace the lithium metal layer; and creating a mock-up sample including one or more layers of the battery cell. One or more layers comprise the lithium mimic metal layer. The method includes performing electromagnetic testing of the mock-up sample.

公开(公告)号：US20240230773A9

公开(公告)日：2024-07-11

申请号：US17971774

申请日：2022-10-24

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Robin JAMES ,  Megan E. Mcgovern ,  Dmitriy Bruder ,  Whitney Ann Poling ,  Erik Damon Huemiller ,  Shaomao Xu ,  Caleb Reese

IPC: G01R31/385 ,  H01M10/0525

CPC classification number: G01R31/3865 ,  H01M10/0525

Abstract: A method for validating non-destructive, electromagnetic methods in atmospheric conditions of a battery cell intended to include a lithium metal layer includes selecting a lithium mimic metal layer to replace the lithium metal layer; and creating a mock-up sample including one or more layers of the battery cell. One or more layers comprise the lithium mimic metal layer. The method includes performing electromagnetic testing of the mock-up sample.

公开(公告)号：US20240136533A1

公开(公告)日：2024-04-25

申请号：US17972063

申请日：2022-10-23

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Robin JAMES ,  Megan E. MCGOVERN ,  Dmitriy BRUDER ,  Whitney Ann POLING ,  Erik Damon HUEMILLER ,  Shaomao XU ,  Caleb REESE

IPC: H01M4/62 ,  H01M4/04 ,  H01M4/66

CPC classification number: H01M4/626 ,  H01M4/0404 ,  H01M4/661

Abstract: The present disclosure provides electrode assemblies for safe nondestructive testing in ambient conditions. In certain variations, the electrode assembly includes a current collector and a non-reactive lithium mimic material disposed on or near one or more surfaces of the current collector or embedded in the current collector. In other variations, the electrode assembly includes include a current collector, a lithium metal material disposed on or near one or more surfaces of the current collector or embedded in the current collector to form an electrode assembly, and a non-conductive pouch holding the electrode assembly.

公开(公告)号：US20250130033A1

公开(公告)日：2025-04-24

申请号：US18381267

申请日：2023-10-18

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC ,  IOWA STATE UNIVERSITY RESEARCH FOUNDATION, INC.

Inventor： Megan E. MCGOVERN ,  Robin JAMES ,  Shaomao XU ,  Dmitriy BRUDER ,  Yuan JI

IPC: G01B7/06 ,  G01B7/02

Abstract: An eddy current non-destructive evaluation system for an electrode film material includes: at least one control module configured to generate a transmission signal; and a first pair of coils. The first pair of coils includes: a first coil disposed adjacent the electrode film material and configured to operate in a transmit mode, and, based on the transmission signal, to generate an electromagnetic field that passes through the electrode film material; and a second coil disposed adjacent and on an opposite side of the electrode film material as the first coil and configured to operate in a receive mode. The second coil is configured to generate a electromagnetic field voltage based on the electromagnetic field. The at least one control module is configured, based on the electromagnetic field voltage, to at least one of determine a thickness of the electrode film material and detect a defect of the electrode film material.

公开(公告)号：US20240234738A9

公开(公告)日：2024-07-11

申请号：US17972063

申请日：2022-10-24

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Robin JAMES ,  Megan E. MCGOVERN ,  Dmitriy BRUDER ,  Whitney Ann POLING ,  Erik Damon HUEMILLER ,  Shaomao XU ,  Caleb REESE

IPC: H01M4/62 ,  H01M4/04 ,  H01M4/66

CPC classification number: H01M4/626 ,  H01M4/0404 ,  H01M4/661

Abstract: The present disclosure provides electrode assemblies for safe nondestructive testing in ambient conditions. In certain variations, the electrode assembly includes a current collector and a non-reactive lithium mimic material disposed on or near one or more surfaces of the current collector or embedded in the current collector. In other variations, the electrode assembly includes include a current collector, a lithium metal material disposed on or near one or more surfaces of the current collector or embedded in the current collector to form an electrode assembly, and a non-conductive pouch holding the electrode assembly.

公开(公告)号：US20240201061A1

公开(公告)日：2024-06-20

申请号：US18084091

申请日：2022-12-19

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Dmitriy BRUDER ,  Robin JAMES ,  Megan E. McGOVERN ,  Robert H. DIETZE, JR. ,  Christopher BRADY

IPC: G01N11/02

CPC classification number: G01N11/02 ,  G01N2011/0073

Abstract: A system for measuring effects of vibration on rheometric properties of a fluid sample. The system includes a receptacle configured to hold the fluid sample and receive a probe extending from a rheometric measuring device. A vibration generator is configured to vibrate the fluid sample within the receptacle while the rheometric measuring device measures the rheometric properties of the fluid sample. A vibration control module is configured to control frequency at which the vibration generator vibrates.

公开(公告)号：US20240194958A1

公开(公告)日：2024-06-13

申请号：US18078927

申请日：2022-12-10

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Robin JAMES ,  Stephen J. Andersen ,  James Joseph Deininger ,  Raffaello Ardanese

IPC: H01M10/42

CPC classification number: H01M10/4285

Abstract: A fixture assembly for testing or measuring a portion of a battery electrode includes a top plate, a baseplate, a connector and a support member. The top plate includes holes for creating a low-pressure region along a top surface of the top plate to hold the portion of the battery electrode to the top plate. The baseplate includes a bottom plate and side walls. The side walls extend upward from the bottom plate and define a vacuum chamber with the top plate. The connector is attached to the baseplate and configured to be connected to a vacuum hose for drawing air from the vacuum chamber to pull the portion of the battery electrode to the top plate. The support member is attached to the baseplate and configured to hold the fixture assembly in place relative to a measuring device that measures a physical characteristic of the battery electrode.