Method and apparatus for evaluating a weld junction between a terminal and an electrode element of a battery cell

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United States of America Patent

PATENT NO 10274448
APP PUB NO 20170322168A1
SERIAL NO

15294111

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Abstract

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A method and a test fixture for evaluating a weld seam joining an electrode foil element and a terminal of a battery cell include segmenting the weld seam joining the electrode foil element and the terminal into a plurality of zones. For each of the zones, an electrical current is applied between the terminal and the electrode foil element in the zone, and a resistance is determined across the terminal and the electrode foil element in the zone. Integrity of the weld seam is evaluated for each of the zones based upon the resistance between the terminal and the electrode foil element in the zone.

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Patent Owner(s)

  • GM GLOBAL TECHNOLOGY OPERATIONS LLC

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chalfant, Robert W Berkley, US 9 61
Kettlewell, James E Windsor, CA 1 1
Lupienski, Jason A Birmingham, US 7 9

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