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US 2025/0132374 A1Published application
Method for post-forming of stiffening portions in enclosures for battery cells
AssigneeGM Global Technology Operations LLC
InventorsAndrew Clay BOBEL, Michael Apone, Diptak Bhattacharya
Life of this patent
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Abstract
An enclosure body and a method for manufacturing an enclosure includes one of extruding and deep drawing an enclosure including a plurality of side walls defining a first cavity. The plurality of side walls are formed without stiffening portions. After extruding and deep drawing of the enclosure, forming a plurality of stiffening portions on the enclosure using an expandable punch, a hydraulic punch, and/or hydroforming.
Claims20
A method for manufacturing an enclosure comprising:
- one of extruding and deep drawing an enclosure body, wherein the enclosure body includes a plurality of side walls defining a first cavity, and wherein the plurality of side walls are formed without stiffening portions;
- and
- after the one of the extruding and deep drawing of the enclosure body, forming a plurality of stiffening portions on the enclosure body.
An enclosure for a battery cell comprising:
- an enclosure body formed by one of extruding and deep drawing and including a plurality of side walls defining a first cavity;
- and
- a plurality of stiffening portions formed in at least one of the plurality of side walls of the enclosure body after the one of extruding and deep drawing.
Dependencies are inferred from the claim text.