BATTERY MODULE

A battery module (10) includes a plurality of battery cells (100), a first element (210) positioned between the adjacent battery cells (100) and having thermal conductivity of less than 1.0 W/m•K, and a second element (220) positioned between the first element (210) and the battery cell (100) and having thermal conductivity of equal to or more than 10 W/m•K. The second element (220) is thermally coupled to a first portion of a housing portion (300) covering a portion of each of battery cells (100). The portion of each of battery cells (100) is thermally insulated from the first portion of the housing portion (300). Specifically, a gap is provided between the first portion of the housing portion (300) and the portion of each of battery cells (100).