Energy storage cell and method for the production thereof
AssigneeBayerische Motoren Werke Aktiengesellschaft
InventorsFranz Fuchs, Kevin Gallagher, Martin Hiller, Florian Kopp, Christophe Mille, Frederik Morgenstern, Nikolaos Tsiouvaras, Seokyoon Yoo
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Abstract
A method for producing an energy storage cell is provided. According to the method, a housing having a base, a tapping plate, and a wound electrode assembly are provided. The wound electrode assembly is connected to the tapping plate, and the tapping plate, which is connected to the wound electrode assembly, is arranged in the housing. The tapping plate and the base of the housing are connected to each other via laser beam welding.
Claims12
A method for producing an energy storage cell comprising:
- providing a housing having a base;
- providing a lead plate;
- providing a wound electrode arrangement;
- connecting the wound electrode arrangement to the lead plate;
- arranging the lead plate connected to the wound electrode arrangement at a bottom of the housing, the lead plate including a projection projecting downward toward the bottom of the housing and at least one bulge projecting downward toward the bottom of the housing;
- wherein a hole is provided in the base of the housing, and the projection of the lead plate is inserted at least in sections into the hole of the base of the housing;
- and
- connecting the lead plate and the base of the housing by laser beam welding.
An energy storage cell comprising:
- a housing having a base;
- a lead plate disposed at a bottom of the housing and including a projection projecting downward toward the bottom of the housing and at least one bulge projecting downward toward the bottom of the housing;
- a wound electrode arrangement;
- wherein the wound electrode arrangement is connected to the lead plate, the lead plate having the wound electrode arrangement connected thereto is arranged in the housing, and the lead plate and the base of the housing are connected by laser beam welding;
- and
- wherein a hole is provided in the base of the housing, and the projection of the lead plate is inserted at least in sections into the hole of the base of the housing.
Dependencies are inferred from the claim text.