Abstract: The present invention relates to a cooling module (1) for electrical battery cells, comprising a main body (3) in the form of a composite plate and incorporating at least one circuit (4) for the circulation of a heat transfer fluid, between a base plate (6) made of a rigid material with low thermal conductivity and at least one covering plate (8) made of a material with high thermal conductivity, which is intended to come into surface contact with cells of the battery to be cooled, each assembly [cover plate (8)/duct circuit (4)] forming a temperature-controlled reception site.