Cooling device for an electric battery

A cooling device (30) for an electric battery (10), the cooling device (30) comprising:

• a casing (32) formed from two sheets (36) of flexible material which extend facing one another, the casing (32) having weld regions (38) where the sheets (36) are secured to one another and separation regions (40) where the sheets (36) are able to extend at a distance from one another, the casing (32) defining lateral edges (47),
• at least one fluid circulation channel (52) extending between the sheets (36) through at least one of the separation regions (40), and
• at least one inlet fluidic connector (50) and at least one outlet fluidic connector (50) of the casing (32), open to the at least one fluid circulation channel (52),
• characterized in that the cooling device (30) further comprises:
• a rigid support structure (34), the support structure (34) comprising a first part (54) and a second part (56) as well as means for assembly (58) of the second part (56) and the first part (54), the second part (56) and the first part (54) being shaped to clasp at least one of the lateral edges (47) of the casing (32) between them, the second part (56) defining at least hollowed-out portion (68) intended to provide an opening at at least one of the separation regions (40) of the casing (32) so as to allow the casing (32) to protrude from the support structure (34) through said hollowed-out portion (68).