US 12,334,520 B2
Electrode testing fixture and system for material characterization and standardization
Robin James, Rochester Hills, MI (US); Stephen J. Andersen, Madison Heights, MI (US); James Joseph Deininger, Wyandotte, MI (US); and Raffaello Ardanese, Bloomfield Hills, MI (US)
Assigned to GM GLOBAL TECHNOLOGY OPERATIONS LLC, Detroit, MI (US)
Filed by GM GLOBAL TECHNOLOGY OPERATIONS LLC, Detroit, MI (US)
Filed on Dec. 10, 2022, as Appl. No. 18/078,927.
Prior Publication US 2024/0194958 A1, Jun. 13, 2024
Int. Cl. H01M 10/42 (2006.01)
CPC H01M 10/4285 (2013.01) 20 Claims
OG exemplary drawing
 
1. A fixture assembly for testing or measuring at least a portion of a battery electrode, the fixture assembly comprising:
a top plate comprising a plurality of holes for creating a low-pressure region along a top surface of the top plate to hold the at least a portion of the battery electrode to the top plate;
a baseplate comprising
a bottom plate, and
a plurality of side walls extending upward from the bottom plate and defining a vacuum chamber with the top plate;
a connector attached to the baseplate and configured to be connected to a vacuum hose for drawing air from the vacuum chamber to pull the at least a portion of the battery electrode to the top plate; and
a support member attached to the baseplate and configured to hold the fixture assembly in place relative to a measuring device that measures a physical characteristic of the at least a portion of the battery electrode,
wherein at least one of
the plurality of side walls comprise an inner ledge on which the top plate is disposed such that the top surface of the top plate is flush with top surfaces of the plurality of side walls, and
the baseplate comprises a plurality of support pegs for supporting the top plate relative to the bottom plate, the plurality of support pegs extending within the vacuum chamber and from the bottom plate.