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US 2025/0062447 A1Published application
Enclosure for battery cells
AssigneeGM Global Technology Operations LLC
InventorsDiptak BHATTACHARYA, Anil K. SACHDEV, Seung-Woo CHU, Mark W. VERBRUGGE, Ryan Patrick HICKEY
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Abstract
A battery cell including a can body of an enclosure comprising a sheet of metal that is folded into an open cylindrical shape and welded. The can body includes a first opening and a second opening at opposite ends of the can body. The can body is configured to receive a battery cell stack. A lid portion of the enclosure is attached to the first opening of the can body. A bottom portion of the enclosure is attached to the second opening of the can body.
Claims20
A battery cell comprising:
- a can body of an enclosure comprising a sheet of metal that is folded and welded,
- wherein the can body includes a first opening and a second opening at opposite ends of the can body, and
- wherein the can body is configured to receive a battery cell stack;
- a lid portion of the enclosure attached to the first opening of the can body;
- and
- a bottom portion of the enclosure attached to the second opening of the can body.
3 more elements
A method for manufacturing a battery cell, comprising:
- using first and second rollers to create a first pattern of stiffening portions and a second pattern of stiffening portions on a sheet of metal;
- folding the sheet of metal into an open cylindrical shape to form a can body of an enclosure,
- wherein the first pattern of stiffening portions is located on one side of the enclosure and the second pattern of stiffening portions is located on another side of the enclosure;
- welding a non-stressed side of the enclosure;
- attaching a lid portion to a first opening of the can body;
- and
- attaching a bottom portion to a second opening of the can body.
4 more elements
Dependencies are inferred from the claim text.