Battery module

Abstract

A battery module includes elongated battery cells each formed by sealing an electrode body with a laminate film, and a case capable of accommodating a battery cell group in which a plurality of the battery cells are arranged, wherein the case is configured to include a pair of short side wall portions extending along a lamination direction of the battery cells, and a pair of long side wall portions that connect the short side wall portions to each other, and the long side wall portions are formed in a shape that is more difficult to deform in a plate thickness direction than the short side wall portions.

Dependencies are inferred from the claim text.