Invention Grant
- Patent Title: Battery cell with increased tab area and method and apparatus for manufacturing same
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Application No.: US16529112Application Date: 2019-08-01
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Publication No.: US11171330B2Publication Date: 2021-11-09
- Inventor: Chih-Cheng Hsu , Sherman H. Zeng
- 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
- Agency: Quinn IP Law
- Main IPC: H01M4/36
- IPC: H01M4/36 ; H01M4/70 ; H01M2/26 ; H01M10/0525 ; H01M4/13 ; B60L50/64 ; H01M10/46 ; H01M4/04 ; H01M4/139 ; H02J7/14 ; H01M4/66 ; B60L53/24 ; H01M50/531

Abstract:
A method of forming batteries includes feeding a foil through a coating machine. The movement of the foil defines a foil direction. The method applies a first coating band and a second coating band to the foil. The second coating band is spaced from the first coating band by a first tab gap. The foil is cut substantially perpendicular to the foil direction to separate a first coated blank. The first coated blank is cut separate the first coating band and a first portion of the first tab gap, and to separate the second coating band and a second portion of the first tab gap. A first electrode is formed from the first coating band and the first portion of the first tab gap, and a second electrode is formed from the second coating band and the second portion of the first tab gap.
Public/Granted literature
- US20190355987A1 BATTERY CELL WITH INCREASED TAB AREA AND METHOD AND APPARATUS FOR MANUFACTURING SAME Public/Granted day:2019-11-21
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