Battery module with battery module housing and battery cells

Abstract

A battery module comprises a battery module housing with parts made of plastic and a plurality of prismatic battery cells that have a cell housing with four side walls. Two parallel side walls are larger than the two other side walls. The electrolyte of the battery cells is preferably SO-based. The battery module housing () has a cooling system with a channel structure () and a fluid coolant. The channel structure () has a fluid connection with a coolant inlet () and a coolant outlet () of the battery module housing (). An intermediate wall () made of plastic is located between two adjacent battery cells () essentially parallel to the larger side walls () of the battery cell (). One channel () of the channel structure () runs at least partially in the intermediate wall () and is formed by means of a recess () in the intermediate wall () that is open at least to one adjacent side wall () of the battery cell (). A plastic separating layer (), whose material is preferably different to the material of the intermediate wall () and whose thickness is less than the thickness of the intermediate wall (), is arranged between the side wall () of the battery cell () and the intermediate wall () in such a manner that the channel () of the cooling system formed by the recess () is closed by the plastic separating layer ().