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公开(公告)号：US10557832B2
公开(公告)日：2020-02-11
申请号：US15499957
申请日：2017-04-28
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Megan E. McGovern , Wayne Cai , Jeffrey A. Abell
Abstract: An apparatus for in-situ monitoring of a welded joint in a workpiece includes an ultrasonic sending transducer and a receiving transducer. The ultrasonic sending transducer includes a probe head disposed on a plurality of individually-activatable piezoelectric elements, and a plurality of waveguide probes projecting orthogonally from a planar surface. A wave attenuator is disposed between individual ones of the waveguide probes. A receiving transducer is disposed therein. The workpiece is insertable between the waveguide probes of the ultrasonic sending transducer and the receiving transducer. The ultrasonic sending transducer urges the probe head towards the receiving transducer such that the waveguide probes physically contact the welded joint in the workpiece. The piezoelectric elements individually excite the waveguide probe that is in physical contact with the welded joint in the workpiece. The acoustic receiving transducer is disposed to monitor the welded joint in the workpiece.
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公开(公告)号：US20180313790A1
公开(公告)日：2018-11-01
申请号：US15499957
申请日：2017-04-28
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Megan E. McGovern , Wayne Cai , Jeffrey A. Abell
CPC classification number: G01N29/2437 , G01N29/043 , G01N29/0654 , G01N29/221 , G01N29/262 , G01N29/265 , G01N29/28 , G01N2291/0234 , G01N2291/0235 , G01N2291/048 , G01N2291/102 , G01N2291/106 , G01N2291/2638 , G01N2291/267 , G01N2291/2677
Abstract: An apparatus for in-situ monitoring of a welded joint in a workpiece includes an ultrasonic sending transducer and a receiving transducer. The ultrasonic sending transducer includes a probe head disposed on a plurality of individually-activatable piezoelectric elements, and a plurality of waveguide probes projecting orthogonally from a planar surface. A wave attenuator is disposed between individual ones of the waveguide probes. A receiving transducer is disposed therein. The workpiece is insertable between the waveguide probes of the ultrasonic sending transducer and the receiving transducer. The ultrasonic sending transducer urges the probe head towards the receiving transducer such that the waveguide probes physically contact the welded joint in the workpiece. The piezoelectric elements individually excite the waveguide probe that is in physical contact with the welded joint in the workpiece. The acoustic receiving transducer is disposed to monitor the welded joint in the workpiece.
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13.发明授权公开(公告)号：US12005532B2
公开(公告)日：2024-06-11
申请号：US17405433
申请日：2021-08-18
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Debejyo Chakraborty , Miguel Arturo Saez , John Patrick Spicer , Pei-chung Wang , Spyros P Mellas , Wayne Cai , James M Ward
CPC classification number: B23K9/0956 , B23K9/0953 , B23K9/125
Abstract: Systems, methods, and apparatuses of a welding system are disclosed and include a first stage of a scanning device for scanning weld parts to generate a three-dimensional (3D) profile of a weld target wherein the 3D profile captures matching imperfections of a meeting together of the set of weld parts when performing the weld operation; and the second stage of a monitoring device to monitor the weld operation and to generate a data of high-resolution measurements of the weld operation; wherein the first stage further includes the monitoring device determining a weld schedule based on the 3D profile, and to adjust the weld schedule while the weld operation progresses to adapt to predicted distortion based on the 3D profile and to sensed distortion; wherein the second stage further includes a plurality of sensors to sense a set of components associated with the weld operation to generate high-resolution data of measurements.
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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.
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公开(公告)号：US20230241705A1
公开(公告)日：2023-08-03
申请号：US17587132
申请日：2022-01-28
Applicant: GM Global Technology Operations LLC
Inventor： Wayne Cai , Teresa Jean Rinker , Jennifer Therese Bracey , Shunyi Zhang
IPC: B23K11/04 , H01M50/566 , H01M10/0525
CPC classification number: B23K11/04 , H01M50/566 , H01M10/0525
Abstract: A method comprises deforming one or more metal foils of a battery between a punch and a die to form bent metal foils. The one or more bent metal foils are disposed in a foil holding fixture with a battery lead disposed next to the one or more bent metal foils such that a bent portion of the one or more bent metal foils are separated from the battery lead by a distance of 0.1 to 2 millimeters. The one or more bent metal foils are impact welded by causing the foils to impact one another or to impact a battery lead at a velocity of speeds of 300 to 900 meters per second.
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Patent Agency Ranking
公开(公告)号：US20210237212A1
公开(公告)日：2021-08-05
申请号：US16778861
申请日：2020-01-31
Applicant: GM Global Technology Operations LLC
Inventor： Miguel A Saez , Debejyo Chakraborty , Richard J. Skurkis , John P. Spicer , Wayne Cai
Abstract: A welding block for a welding system secures together first and second components of a workpiece for a motor vehicle to reduce distortion of the first and second components during a welding process. The welding block includes a jig mechanism that has a proximal surface for receiving a load from an arm of the welding system. The jig mechanism further includes a distal surface for engaging the first component and securing the first and second components to one another during the welding process. The jig mechanism defines a passage, such that heat flows from the distal surface to a coolant flowing through the passage. The welding block further includes a sensor coupled to the jig mechanism for detecting a measured variable associated with at least one of the first and second components.
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公开(公告)号：US20190064277A1
公开(公告)日：2019-02-28
申请号：US15692766
申请日：2017-08-31
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Wayne Cai , Debejyo Chakraborty , Teresa J. Rinker , Megan E. McGovern , Ryan C. Sekol , Diana M. Wegner , Kevin B. Rober
Abstract: A method and an apparatus for evaluating a battery cell. The battery cell may include a hermetically sealed outer casing, a plurality of electrically conductive components enclosed within the outer casing, an electrically conductive terminal having a proximal end that extends within the outer casing and a distal end that extends in a longitudinal direction relative to the battery cell outside the outer casing, and a solid electrical and mechanical joint formed between one or more of the electrically conductive components and the proximal end of the electrically conductive terminal. Evaluation of the battery cell may include measuring the impedance of the battery cell while applying a longitudinal pulling force or a transverse bending force to the electrically conductive terminal and the solid electrical and mechanical joint.
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公开(公告)号：US20250007111A1
公开(公告)日：2025-01-02
申请号：US18342201
申请日：2023-06-27
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Feng Feng , Sam T. Liu , Teresa Jean Rinker , Wayne Cai , Mansu Park
IPC: H01M50/533 , B60L50/64 , H01M50/534
Abstract: Some embodiments disclosed herein are directed to battery cells with corrugated foil tabs. Some embodiments may include a battery cell comprising a cathode, an anode and a corrugated foil tab coupled to the cathode or the anode, wherein the corrugated foil tab has a length in a first plane, includes alternating peaks and troughs in a second plane along the length of the corrugated foil tab, and has a width in a third plane, and wherein the first plane, second plane, and third plane are orthogonal to each other. Other embodiments may be disclosed or claimed.
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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
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.
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公开(公告)号：US11167381B2
公开(公告)日：2021-11-09
申请号：US16778885
申请日：2020-01-31
Applicant: GM Global Technology Operations LLC
Inventor： Miguel A Saez , John P. Spicer , Spyros P Mellas , Richard J Skurkis , Pei-chung Wang , James W Wells , Wayne Cai , Dooil Hwang
IPC: B23K37/04 , G05B19/402 , B23K101/00
Abstract: A clamp system and method for measurement and control of welding a first substrate to a second substrate is provided. The system comprises a squeeze clamp having to a first end and a second end. The system further comprises a motor connected to the squeeze clamp such that the first and second ends are movable to clamp the first substrate to the second substrate. The system further comprises at least one of an electromagnetic flux sensor, a current sensor, a position sensor, and a gap sensor disposed on one of the first and second ends for determining a first measured variable between the first and second substrates. The system further comprises a controller to control the motor to clamp the first substrate to the second substrate based on the first measured variable. The controller is in communication with the electromagnetic flux sensor, the current sensor, and the gap sensor.
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