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公开(公告)号：US10103415B2
公开(公告)日：2018-10-16
申请号：US15014567
申请日：2016-02-03
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Anthony Ottomano , Pablo Valencia, Jr. , Andrew H. Leutheuser
IPC: H01M10/6553 , H01M10/6557 , H01M10/0525 , H01M10/613 , H01M2/02 , H01M10/647 , H01M10/654
Abstract: A battery cell includes a pouch, an electrolyte material, positive and negative electrodes, and one or more heat conducting members. The pouch has an inner surface defining an internal volume, within which is contained the electrolyte material. The electrodes form current collectors that are positioned within the internal volume of the pouch. The electrode terminals are connected to a respective one of the positive and negative electrodes. Each heat conducting member is in thermal communication with a respective electrode terminal fully within the internal volume of the pouch, and extends between the electrodes and the inner surface of the pouch. The heat conducting members form a parallel heat transfer path within the battery cell. A battery pack includes a housing containing multiple such battery cells.
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公开(公告)号：US10241090B2
公开(公告)日：2019-03-26
申请号：US15142408
申请日：2016-04-29
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Wayne W. Cai , Debejyo Chakraborty , Qian Lin , John M. Moote , Anthony Ottomano , Teresa J. Rinker
Abstract: A method and a test fixture for evaluating a battery cell composed of a cell body having a plurality of electrode foils, a positive terminal and a negative terminal, wherein the positive terminal and the negative terminal are each joined to the cell body at weld junctions. This includes retaining the cell body of the battery cell in a first clamping device. The terminal is grasped in a terminal gripper. A dynamic stress end effector coupled to the terminal gripper applies a vibrational excitation load to the terminal. A static stress end effector applies a static load to the terminal. Integrity of the weld junction is evaluated based upon the applied static load.
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公开(公告)号：US20170348804A1
公开(公告)日：2017-12-07
申请号：US15174288
申请日：2016-06-06
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Wayne W. Cai , Debejyo Chakraborty , Qian Lin , John M. Moote , Anthony Ottomano , Teresa J. Rinker
IPC: B23K31/12 , G01N27/416 , G01N25/72
CPC classification number: B23K31/125 , B23K20/10 , G01N25/72 , G01N27/416 , G01R31/36
Abstract: A method and a test fixture for evaluating a battery cell are described, wherein the battery cell is composed of a cell body having a plurality of electrode foils that are joined to both a positive terminal and a negative terminal at weld junctions. The method includes retaining the cell body of the battery cell in a first clamping device and gripping one of the positive and negative terminals in a terminal gripper. A dynamic stress end effector coupled to the terminal gripper is employed to apply a vibrational excitation load to the one of the positive and negative terminals. Impedance between the positive terminal and the negative terminal is monitored via a controller, and integrity of the weld junction of the one of the positive and negative terminals is evaluated based upon the impedance.
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公开(公告)号：US20170222284A1
公开(公告)日：2017-08-03
申请号：US15014567
申请日：2016-02-03
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Anthony Ottomano , Pablo Valencia, JR. , Andrew H. Leutheuser
IPC: H01M10/6553 , H01M2/02 , H01M10/6557 , H01M10/0525 , H01M10/613
CPC classification number: H01M10/6553 , H01M2/0287 , H01M10/0525 , H01M10/613 , H01M10/647 , H01M10/654 , H01M10/6557
Abstract: A battery cell includes a pouch, an electrolyte material, positive and negative electrodes, and one or more heat conducting members. The pouch has an inner surface defining an internal volume, within which is contained the electrolyte material. The electrodes form current collectors that are positioned within the internal volume of the pouch. The electrode terminals are connected to a respective one of the positive and negative electrodes. Each heat conducting member is in thermal communication with a respective electrode terminal fully within the internal volume of the pouch, and extends between the electrodes and the inner surface of the pouch. The heat conducting members form a parallel heat transfer path within the battery cell. A battery pack includes a housing containing multiple such battery cells.
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Patent Agency Ranking
公开(公告)号：US20190152001A1
公开(公告)日：2019-05-23
申请号：US16251755
申请日：2019-01-18
Applicant: GM Global Technology Operations LLC
Inventor： Wayne W. Cai , Debejyo Chakraborty , Qian Lin , John M. Moote , Anthony Ottomano , Teresa J. Rinker
IPC: B23K31/12 , G01R31/36 , G01N25/72 , G01N27/416
Abstract: A method and a test fixture for evaluating a battery cell are described, wherein the battery cell is composed of a cell body having a plurality of electrode foils that are joined to both a positive terminal and a negative terminal at weld junctions. The method includes retaining the cell body of the battery cell in a first clamping device and gripping one of the positive and negative terminals in a terminal gripper. A dynamic stress end effector coupled to the terminal gripper is employed to apply a vibrational excitation load to the one of the positive and negative terminals. Impedance between the positive terminal and the negative terminal is monitored via a controller, and integrity of the weld junction of the one of the positive and negative terminals is evaluated based upon the impedance.
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公开(公告)号：US10189118B2
公开(公告)日：2019-01-29
申请号：US15174288
申请日：2016-06-06
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Wayne W. Cai , Debejyo Chakraborty , Qian Lin , John M. Moote , Anthony Ottomano , Teresa J. Rinker
Abstract: A method and a test fixture for evaluating a battery cell are described, wherein the battery cell is composed of a cell body having a plurality of electrode foils that are joined to both a positive terminal and a negative terminal at weld junctions. The method includes retaining the cell body of the battery cell in a first clamping device and gripping one of the positive and negative terminals in a terminal gripper. A dynamic stress end effector coupled to the terminal gripper is employed to apply a vibrational excitation load to the one of the positive and negative terminals. Impedance between the positive terminal and the negative terminal is monitored via a controller, and integrity of the weld junction of the one of the positive and negative terminals is evaluated based upon the impedance.
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公开(公告)号：US10759006B2
公开(公告)日：2020-09-01
申请号：US16251755
申请日：2019-01-18
Applicant: GM Global Technology Operations LLC
Inventor： Wayne W. Cai , Debejyo Chakraborty , Qian Lin , John M. Moote , Anthony Ottomano , Teresa J. Rinker
Abstract: A method and a test fixture for evaluating a battery cell are described, wherein the battery cell is composed of a cell body having a plurality of electrode foils that are joined to both a positive terminal and a negative terminal at weld junctions. The method includes retaining the cell body of the battery cell in a first clamping device and gripping one of the positive and negative terminals in a terminal gripper. A dynamic stress end effector coupled to the terminal gripper is employed to apply a vibrational excitation load to the one of the positive and negative terminals. Impedance between the positive terminal and the negative terminal is monitored via a controller, and integrity of the weld junction of the one of the positive and negative terminals is evaluated based upon the impedance.
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公开(公告)号：US20170315100A1
公开(公告)日：2017-11-02
申请号：US15142408
申请日：2016-04-29
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Wayne W. Cai , Debejyo Chakraborty , Qian Lin , John M. Moote , Anthony Ottomano , Teresa J. Rinker
CPC classification number: G01N29/4445 , B23K20/10 , B23K31/125 , B23K2101/38 , G01N3/08 , G01N29/04 , G01N29/045 , G01N29/34 , G01N2203/0073 , G01N2291/025 , G01N2291/0258 , G01R31/3641
Abstract: A method and a test fixture for evaluating a battery cell composed of a cell body having a plurality of electrode foils, a positive terminal and a negative terminal, wherein the positive terminal and the negative terminal are each joined to the cell body at weld junctions. This includes retaining the cell body of the battery cell in a first clamping device. The terminal is grasped in a terminal gripper. A dynamic stress end effector coupled to the terminal gripper applies a vibrational excitation load to the terminal. A static stress end effector applies a static load to the terminal. Integrity of the weld junction is evaluated based upon the applied static load.
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公开(公告)号：US20160351865A1
公开(公告)日：2016-12-01
申请号：US14722893
申请日：2015-05-27
Applicant: GM Global Technology Operations LLC
Inventor： Anthony Ottomano , Qian Lin , Yan Wu
CPC classification number: H01M2/06 , B32B7/02 , B32B7/12 , B32B15/08 , B32B15/20 , B32B27/08 , B32B27/32 , B32B27/34 , B32B27/36 , B32B2307/206 , B32B2307/546 , B32B2307/732 , B32B2457/10 , H01M2/0275 , H01M2/0277 , H01M2/0285 , H01M2/0287
Abstract: Methods and battery cells formed thereby are provided that minimize issues with an exposed metallic layer at the peripheral edge of a flexible laminate forming a battery cell pouch. Sealing the periphery of the pouch is optimized projecting terminals of the electrochemical cell through perforations in the flexible laminate at a folded edge thereof. The folded edge does not present an exposed metallic layer and does not require a sealing material or use of sealing operation complicated by the terminals.
Abstract translation: 提供了方法和由此形成的电池单元，其使形成电池单元袋的柔性层压体的周缘处的暴露的金属层的问题最小化。 密封袋的周边是通过在其折叠边缘处的柔性层压体中的穿孔来优化电化学电池的突出端子。 折叠边缘不存在暴露的金属层，并且不需要密封材料或使用由端子复杂的密封操作。
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