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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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Patent Agency Ranking
公开(公告)号：US20180312154A1
公开(公告)日：2018-11-01
申请号：US15497301
申请日：2017-04-26
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Chih-hung Yen , Richard A. Kaatz , Steven J. Weber , John M. Moote , Patrick M. Hanley , Xiaoyu Huang
CPC classification number: B60T17/221 , B60T13/662 , B60T17/225 , B60T2210/30 , F16D66/00 , F16D2066/001
Abstract: According to aspects of the present disclosure, a vehicle includes a braking system, at least one controller, and at least one memory. The braking system includes a brake fluid therein and a brake pedal. The at least one memory stores instructions that, when executed by the at least one controller, are configured to: determine, via a boiling-point module, a boiling point of a brake fluid within a braking system of a vehicle; determine, via a fluidic-properties module, fluidic properties of the brake fluid; determine, via a corrosion-inhibitor module, an amount of corrosion inhibitors within the brake fluid; determine, via a reserve-alkalinity module, a reserve alkalinity of the brake fluid; estimate, a brake-fluid life module, a remaining effective life of the brake fluid using the boiling point, the fluidic properties, the amount of corrosion inhibitors, and the reserve alkalinity; and adjust a response curve of the braking system.
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公开(公告)号：US11183721B2
公开(公告)日：2021-11-23
申请号：US16595737
申请日：2019-10-08
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Elaine E. Parkanzky , Karl C. Dorgan , Faruk Sohag , Rajesh K. Bhagirath , Edgar P. Calderon , John M. Moote
IPC: H01M10/38 , H01M10/6569 , H01M10/658 , H01M10/613 , H05K7/20
Abstract: A thermal barrier for use in a power module assembly having at least one battery cell and corresponding method of forming. The thermal barrier includes at least one compressible member having one or more pockets. A first layer and a second layer are positioned adjacent to the compressive member at a first side and a second side, respectively. The thermal barrier includes one or more phase change materials configured to be deposited into the pockets. The phase change materials are configured to undergo an endothermic phase change reaction when a temperature is at or above an activation temperature. The first layer and the second layer may be configured to at least partially reflect radiant heat. In one example, the phase change materials include a bicarbonate salt.
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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：US20190131669A1
公开(公告)日：2019-05-02
申请号：US15800608
申请日：2017-11-01
Applicant: GM Global Technology Operations LLC
Inventor： Daniel R. Thompson , John M. Moote , Michael P. Balogh , Mark A. Hughes, JR.
Abstract: A method of detecting metallic lithium present on an electrode of a lithium ion secondary battery includes depositing a lithium-reactive solution including an oxidized fluorescent dye onto the electrode to form a coated electrode. Concurrent to depositing, the method includes reducing the oxidized fluorescent dye to form a reduced dye and a plurality of lithium ions. The method further includes, after reducing, drying the coated electrode to again form the oxidized fluorescent dye. After drying, the method includes exposing the oxidized fluorescent dye to ultraviolet radiation having a wavelength of from 100 nm to 500 nm to thereby illuminate and detect the metallic lithium. A lithium ion secondary battery system is also disclosed.
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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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