Battery unit with a plurality of battery cells and battery module with a plurality of such battery units

Abstract

The present invention relates to a battery unit (1) comprising a plurality of battery cells (2) each having a first electrode (3) and a second electrode (4) for electrically contacting the respective battery cell (2), wherein the battery cells (2) through cell connectors (5) are electrically connected to each other and the interconnected battery cells (2) are enclosed by an outer casing (6) integrating the battery cells (2) together, the cell connectors (5) comprise at least one flexible molded portion and the outer casing (6) at least partially is flexible, such that the battery unit (1) is deformable according to the change of the relative structure of the battery cells (2). Furthermore, the invention relates to a battery module having a plurality of electrically connected battery units (1).

Description

technical field [0001] The invention relates to a battery unit comprising a plurality of battery cells each having a first electrode and a second electrode for making electrical contact with a corresponding battery cell, wherein the battery cells are connected via a cell The cell connection means are electrically connected to each other, and the interconnected battery cells are surrounded by a housing that brings the battery cells together. [0002] The invention also relates to a battery module having a plurality of battery cells electrically connected to one another. Background technique [0003] Battery cells having a plurality of electrochemical cells electrically connected to one another are known in various configurations from the prior art. Furthermore, battery modules are known which have a plurality of interconnected battery cells, wherein the battery cells are usually arranged in a housing as a housing. In particular, lithium-ion cells are preferably used as batt...

AI Technical Summary

Problems solved by technology

[0005] A disadvantage of the battery cells and battery modules known from the prior art, in particular in terms of design, is the installation space for the means of electrical consumers, which are to be operated with the electrical energy provided by the battery cells or battery modules mechanism

[0006] In addition, especially for hybrid vehicles, plug-in hybrid vehicles or electric vehicles, there is the difficulty that the installation space provided for the battery cells and battery modules necessary for supplying electrical energy should be as small as possible without impairing the Usable Space for Passengers and Luggage

Furthermore, there is the further difficulty of avoiding as much as possible an unfavorable weight distribution for the vehicle by means of the battery cells or battery modules used

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