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    Methods for manufacturing a pouch-type battery cell having polymeric conformal edge coatings
    5.
    发明授权
    Methods for manufacturing a pouch-type battery cell having polymeric conformal edge coatings 有权

    公开(公告)号：US11545708B2

    公开(公告)日：2023-01-03

    申请号：US16686806

    申请日：2019-11-18

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Kestutis A. Sonta ,  James W. Boswell, III

    IPC: H01M50/124 ,  C08G59/18 ,  C08F2/50 ,  B32B7/023

    Abstract: Methods for manufacturing a pouch-type battery cell include disposing one or more electrode pairs between a first aluminum pouch layer and a second aluminum pouch layer, sealing the first pouch layer and the second pouch layer to form a peripheral seal joining the first pouch layer and the second pouch layer to form a pouch with an outer edge encasing the anode and the cathode, applying a photocatalytic polymer coating precursor to the outer edge of the pouch, and photo-curing the photocatalytic polymer coating precursor to form a conformal edge coating. The photocatalytic polymer coating precursor includes one or more photo-initiators, one or more acrylates, and one or more polyamines. The polyamines can include tertiary amines including α-CH functional groups, diamines represented by the formula H2N—R—NH2, wherein R represents saturated and unsaturated aliphatic moieties, and N,N′-(2,2-dimethylpropylidene) hexamethylenediamine. The photo-initiators can include Diphenyl(2,4,6-trimethylbenzoyl) phosphine oxide, 2,2-Dimethoxy-2-phenylacetophenone, and p-tert-butylphenyl 1-(2,3)-epoxy)propyl ether.

    ELECTRONIC POWER MODULE ASSEMBLIES AND CONTROL LOGIC WITH DIRECT-COOLING VAPOR CHAMBER SYSTEMS
    6.
    发明申请
    ELECTRONIC POWER MODULE ASSEMBLIES AND CONTROL LOGIC WITH DIRECT-COOLING VAPOR CHAMBER SYSTEMS 有权

    公开(公告)号：US20210195808A1

    公开(公告)日：2021-06-24

    申请号：US16724998

    申请日：2019-12-23

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Ming Liu ,  Anthony M. Coppola ,  Kestutis A. Sonta

    IPC: H05K7/20 ,  B60L50/51 ,  B60L50/60

    Abstract: Presented are electronic power module assemblies with direct-cooling vapor chamber systems, methods for making/using such power module assemblies, and vehicles equipped with such power module assemblies. A power module assembly includes an outer housing with an internal coolant chamber that circulates therethrough a coolant fluid. A power semiconductor switching device is mounted to the module's housing, separated from the coolant chamber and isolated from the coolant fluid. The power device selectively modifies electric current transmitted between a power source and an electrical load. A two-phase, heat-spreading vapor chamber device includes an outer casing with a casing segment that is mounted to the module housing, fluidly sealed to the internal coolant chamber and exposed to the coolant fluid. Another casing segment includes an inboard-facing casing surface that is mounted to an outboard-facing surface of the power device, and an outboard-facing casing surface mounted to an inboard-facing surface of the power device.

    PRODUCTION AND USE OF COMPOSITE GRAPHENE-COPPER POWDERS
    8.
    发明申请
    PRODUCTION AND USE OF COMPOSITE GRAPHENE-COPPER POWDERS 有权

    公开(公告)号：US20250122595A1

    公开(公告)日：2025-04-17

    申请号：US18486468

    申请日：2023-10-13

    Applicant: GM Global Technology Operations LLC

    Inventor： Qigui Wang ,  Yi Liu ,  Ronald C. Daul ,  Ali Shabbir ,  Kestutis A. Sonta ,  Daniel J. Wilson

    IPC: C22C1/10 ,  B33Y80/00 ,  C01B32/19 ,  C22C9/00

    Abstract: Systems, methods, and devices for forming and implementing a graphene-copper composite powder are disclosed. The graphene-copper composite powder may be formed by providing an inert environment, introducing a first mist to the inert environment, introducing a second mist to the inert environment, and mixing the first mist and the second mist within the inert environment to thereby produce a graphene-copper composite powder. The first mist being atomized copper with a negative charge, and the second mist including graphene flakes with a positive charge. The graphene-copper composite powder may be used to form components via additive manufacturing or traditional powder metallurgy processes.

    CONDUCTIVE CABLE FOR A BATTERY ELECTRIC VEHICLE
    9.
    发明申请
    CONDUCTIVE CABLE FOR A BATTERY ELECTRIC VEHICLE 有权

    公开(公告)号：US20240395438A1

    公开(公告)日：2024-11-28

    申请号：US18322211

    申请日：2023-05-23

    Applicant: GM Global Technology Operations LLC

    Inventor： Yi Liu ,  Qigui Wang ,  Huaxin Li ,  Kestutis A. Sonta ,  Daniel J. Wilson

    IPC: H01B1/02 ,  H01B1/04 ,  H01B5/08

    Abstract: A conductive cable for a battery electric vehicle is provided. The conductive cable comprises a plurality of first members in alignment to define a longitudinal axis of the conductive cable. Each first member comprises a first conductive wire about which a first outer layer is disposed for electric current to flow therethrough relative to the longitudinal axis. The first outer layer comprises a first metal substrate having a first side and an opposite second side. The first outer layer comprises a first copper-graphene (Cu-Gr) multilayer composite disposed on the first side and a second Cu-Gr multilayer composite disposed on the second side of the first metal substrate. Each first conductive wire comprises a first metallic material. The plurality of first members is disposed together along the longitudinal axis to define a cable bundle. The conductive cable further comprises a non-conductive layer disposed about the cable bundle.

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