CYLINDRICAL BATTERY CELL, BATTERY AND METHOD FOR FORMING CYLINDRICAL BATTERY CELL

A cylindrical battery cell, a battery and a method for forming cylindrical battery cell are provided. In the cylindrical battery cell, a copper plate is forged with the cell housing to form a bi-metal plate on the bottom side of the cell housing, and the copper plate is welded with the jellyroll str...

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Bibliographic Details
Main Authors DARBANDI, Azad, SCHMIEG, Tobias, LI, Chen, CHENG, Qian
Format Patent
LanguageEnglish
Published 31.10.2024
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRICITY
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
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Summary:A cylindrical battery cell, a battery and a method for forming cylindrical battery cell are provided. In the cylindrical battery cell, a copper plate is forged with the cell housing to form a bi-metal plate on the bottom side of the cell housing, and the copper plate is welded with the jellyroll structure. Therefore, joining/welding the cell housing with the jellyroll structure is achieved by using a laser from outside of the cell housing, while risk of corrosion of cell housing is not introduced.
Bibliography:Application Number: US202118287871