Fluid-temperature-controllable traction battery and battery housing assembly having a feed-through for a heat transmission device

A battery housing assembly, in particular a battery housing assembly of a vehicle traction battery which can be temperature-controlled by a fluid, comprising a battery housing which encloses an interior space for receiving a plurality of battery cells;

• and a heat transmission device which has an inlet tube, an outlet tube and a heat exchanger element arranged fluidically therebetween, the fluid being able to flow through the heat transmission device from the inlet tube via the heat exchanger element to the outlet tube;
• it being possible for the heat exchanger element to be accommodated in the battery housing;
• and
• wherein the heat transmission device is designed as a unit with the inlet tube, the outlet tube and the heat exchanger element, the battery housing has at least one through-opening for feeding through the inlet tube and the outlet tube;
• the battery housing has at least one closure element which is inserted into the at least one through-opening and forms a closure between the inlet tube and/or the outlet tube and the at least one through-opening;
• and the at least one closure element is deformable in an axial direction relative to a passage direction of the inlet tube and/or the outlet tube.