Invention Publication
- Patent Title: BATTERY CELLS WITH ASYMMETRIC ELECTRODE TABS AND METHOD FOR MANUFACTURING
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Application No.: US17988953Application Date: 2022-11-17
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Publication No.: US20240170810A1Publication Date: 2024-05-23
- Inventor: Jeffrey A. ABELL , Wayne CAI , Jennifer Therese BRACEY
- Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Applicant Address: US MI Detroit
- Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Current Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Current Assignee Address: US MI Detroit
- Main IPC: H01M50/54
- IPC: H01M50/54 ; H01M50/105 ; H01M50/178 ; H01M50/533 ; H01M50/534 ; H01M50/536 ; H01M50/548 ; H01M50/55 ; H01M50/553 ; H01M50/562

Abstract:
A battery cell includes cathode electrodes including cathode electrode coatings arranged on cathode current collectors, and anode electrodes including anode electrode coatings arranged on anode current collectors. The cathode electrodes and the anode electrodes are arranged in a predetermined order in a stack. The cathode current collectors include first external tabs in a first asymmetric position and second external tabs in a second asymmetric position. The first external tabs and the second external tabs of the cathode electrodes are welded to a cathode lead tab. The anode current collectors include first external tabs in a first asymmetric position and second external tabs in a second asymmetric position. The first external tabs and the second external tabs of the anode electrodes are welded to an anode lead tab.
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