Battery system and battery module

Abstract

The invention relates to a battery module having a cooling apparatus, comprising at least one first line and at least one second line, wherein the first line and the second line conduct a fluid and absorb heat from cells of the battery module and transfer said heat to the fluid, wherein the first line and the second line extend perpendicular to the cells of the battery module, the first line and the second line are arranged parallel to one another, a flow direction of the fluid in the first line is opposite a flow direction of the fluid in the second line.

Description

technical field [0001] The invention relates to a battery module with which electric energy can be stored. Furthermore, the invention relates to a battery system which in particular comprises a plurality of such battery modules. Finally, the invention relates to a vehicle comprising a battery module or a battery system. Background technique [0002] In particular, battery systems are used in electric vehicles and hybrid vehicles in order to be able to supply electrical energy to the electrical components of the vehicle. In order to ensure range, service life and power availability, defined temperature management of the battery system and battery modules is required. In this case, it is necessary to keep the temperature differences between the individual battery modules or the individual battery cells of the battery modules as small as possible. [0003] In order to maintain a defined temperature, various solutions are possible. On the one hand, the battery modules can be...

AI Technical Summary

Problems solved by technology

However, the problem arises here that at low ambient temperatures the differential pressure in the refrigeration circuit drops, so that the mass flow of the refrigerant is not sufficient to cool the battery system and / or the battery modules sufficiently.

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