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20250183321. Copper-gra (GM GLOBAL TECHNOLOGY OPERATIONS LLC)

From WikiPatents

COPPER-GRAPHENE MULTILAYER COMPOSITE COATED COPPER FOIL FOR ANODE CURRENT COLLECTOR

Abstract: aspects of the disclosure include copper-graphene (cu-gr) multilayer composite (cgmc) current collectors and methods of manufacturing the same. an exemplary vehicle includes an electric motor and a battery pack electrically coupled to the electric motor. the battery pack includes a battery cell with a cell pouch having therein a plurality of stacked anode current collectors alternating with a plurality of stacked cathode current collectors, and an active material dispersed within the cell pouch to cover the current collectors. each of the anode current collectors is a cgmc current collector including a copper foil substrate having a top surface and a bottom surface. the copper foil substrate is pure copper. a graphene layer is directly on at least one of the top surface and the bottom surface of the copper foil substrate and a plated copper layer is directly on the graphene layer.

Inventor(s): Yi Liu, Masoud MohammadPour, Qigui Wang, Kestutis A. Sonta, Ronald C. Daul

CPC Classification: H01M4/667 (PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY)

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