Battery module, in particular for a motor vehicle, having at least one battery cell subjected to force and at least one deformable interlayer

A battery module, encompassing at least one battery cell that is received, in a manner impinged upon by a compressive force along a spacing axis, between two pressure surfaces arranged with a spacing from one another along the spacing axis and clamped toward one another by the compressive force;

• at least one deformable interlayer additionally being provided along the spacing axis between the two pressure surfaces,
• wherein the at least one deformable interlayer is pre-stressed by the compressive force and encompasses a porous material having a porous thermoplastically bonded fiber angle that exhibits both plastic and elastic deformation behavior when externally loaded;
• the at least one deformable interlayer being elastically deformed in response to cyclic changes in volume of the at least one battery cell during use of the battery module and the at least one deformable interlayer being plastically deformed in response to a steady increase in volume of the at least one battery cell that proceeds slowly compared with the cyclic changes in volume and that proceeds over a service life of the at least one battery cell, the plastic and elastic deformation behavior of the at least one deformable interlayer allowing to maintain the compressive force along the spacing axis while dissipating a mechanical load caused by the steady increase in volume by plastic flow and while at the same time allowing the at least one battery cell to execute its cyclic volume changes.