ELECTROCHEMICAL ENERGY STORAGE CELL HAVING A METAL HOUSING, AND METHOD FOR PRODUCING AN ELECTROCHEMICAL ENERGY STORAGE CELL HAVING A METAL HOUSING

摘要

An electrochemical energy storage device according to the invention, henceforth referred to as a secondary cell, has an electrode subassembly. The electrode subassembly has at least one separator and two electrodes of different polarity. The separator is arranged between two electrodes. The electrode subassembly is intended to provide electrical energy, at least from time to time. Furthermore, the secondary cell has one, two or more current collectors. One current collector is intended to be connected, in particular electrically conductively connected, to the electrode subassembly, preferably to one of the electrodes, preferably by means of an integral connection, particularly preferably by means of a welded connection. Furthermore, the secondary cell has at least two in particular metal housing preforms. The housing preforms are intended to delimit the electrode subassembly with respect to the surroundings of the secondary cell. In addition, the housing preforms are intended to be connected to one another, in particular in a form-fitting and/or integral manner, wherein the connected housing preforms preferably form a housing around the electrode subassembly. At least one current collector, preferably two current collectors, are connected to a housing preform, in particular in a form-fitting and/or integral manner, in particular to the same housing preform. At least one of the housing preforms is intended to receive the electrode subassembly, in particular in a form-fitting and/or force-fitting manner, and preferably to brace the electrode subassembly.