Vehicle Energy Japan Inc.

Hiroaki Masuda

Osamu Kubota

Kazuaki Urano

Tatsuhiko Kawasaki

Provided is a battery module capable of keeping a joint strength high at a joint between dissimilar metals of a busbar. A battery moduleof the present invention includes a plurality of battery cells each having cell terminalsand, and a busbarA joining the terminals of the battery cells. The busbarA has a plurality of connection face portionsandeach connected to a corresponding one of the terminalsandof the battery cells; a plurality of rising portions each rising from a corresponding one of the plurality of connection face portionsand; and a connection portion connecting the plurality of rising portions. The busbar includes a copper portionincluding copper and an aluminum portionincluding aluminum, and a joint between the copper portionand the aluminum portionare located on the connection face portion

Growing community of inventors

Hitachinaka, Japan

Hiroaki Masuda