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公开(公告)号：US20240418610A1
公开(公告)日：2024-12-19
申请号：US18334676
申请日：2023-06-14
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Erik Damon HUEMILLER , Thomas A. YERSAK , James R. SALVADOR , Dmitriy BRUDER , Thaddeus EZEH
IPC: G01N1/22 , G01N1/24 , H01M10/48 , H01M50/317
Abstract: A battery cell gas analysis system including a degas chamber, a vacuum pump in fluid communication with the degas chamber to remove air from the degas chamber, a venting port configured to selectively vent the degas chamber, a battery cell enclosed in the degas chamber, and a gas detector in fluid communication with the degas chamber. The gas detector is configured to detect, with gas species separation, at least one parameter of a gas released from the battery cell into the degas chamber, and the at least one parameter of the gas of the battery cell is indicative of a manufacturing quality of the battery cell. The system includes at least one valve coupled between the degas chamber and the gas detector to selectively control a flow of the gas of the battery cell to the gas detector.
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Patent Agency Ranking
公开(公告)号：US20240097215A1
公开(公告)日：2024-03-21
申请号：US17948841
申请日：2022-09-20
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Diana M. WEGNER , Megan E. MCGOVERN , Dmitriy BRUDER , Sean Robert WAGNER , Tanjina AHMED , Evan William SCHMITZ
IPC: H01M10/42 , G01N23/083 , G01N23/18
CPC classification number: H01M10/4285 , G01N23/083 , G01N23/18 , G01N2223/1016 , G01N2223/646
Abstract: A method for detecting defects in battery cells includes receiving an X-Ray radiographic image of a battery cell and segmenting the X-Ray radiographic image into regions of interest using a classifier. The method includes processing the segmented X-Ray radiographic image using the classifier to identify features of the battery cell, detecting whether one or more of the features in the processed X-Ray radiographic image is defective using the classifier, and determining using the classifier whether the battery cell is defective based on whether one or more of the features in the processed X-Ray radiographic image is defective.
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3.发明公开公开(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
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.
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4.发明申请公开(公告)号：US20250130033A1
公开(公告)日：2025-04-24
申请号：US18381267
申请日：2023-10-18
Inventor： Megan E. MCGOVERN , Robin JAMES , Shaomao XU , Dmitriy BRUDER , Yuan JI
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.
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5.发明公开公开(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
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.
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6.发明公开公开(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.
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