Method for Producing a Cover Assembly for a Cell Housing of a Prismatic Battery Cell Having a Sealing Element, and Battery Cell
AssigneeBayerische Motoren Werke Aktiengesellschaft
InventorsNiclas EMRICH, Seokyoon YOO
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Abstract
A method produces a cover assembly for a cell housing of a prismatic battery cell. In the method, a cell terminal consisting of three portions is arranged on a cover plate in such a way that one portion is arranged in a through-opening of the cover plate, another portion and the cover plate overlap to form a first interspace, and a further portion and the cover plate overlap to form a second interspace. A sealing element is provided in one of the interspaces and is preloaded by compressing the interspace. The cell terminal is connected to the cover plate by introducing a plastic into the interspace without the sealing element.
Claims11
-10. (canceled)
A method for producing a cover assembly for a cell housing of a prismatic battery cell, the method comprising the steps of:
- a) providing at least one multi-part cell terminal having a plate-shaped first contact portion for electrically connecting to a cell-external connector, a second contact portion for electrically connecting to a galvanic element of the battery cell, and a connecting portion which mechanically and electrically connects the first contact portion and the second contact portion;
- b) providing a cover plate for covering the cell housing, the cover plate having at least one through opening;
- c) disposing the cell terminal on the cover plate such that the connecting portion is disposed in the through opening, the first contact portion and an upper side of the cover plate overlap while configuring a first intermediate space, and the second contact portion and a lower side of the cover plate overlap while configuring a second intermediate space;
- d) providing a sealing element in one of the first and second intermediate spaces;
- e) prestressing the sealing element by compressing the one intermediate space in which the sealing element is disposed;
- and
- f) connecting the cell terminal to the cover plate and holding the sealing element in the prestressed state by incorporating a plastics material into the other intermediate space.
Dependencies are inferred from the claim text.