Hitachi Automotive Systems, Ltd.

Hitachi Vehicle Energy, Ltd.

Michihiro Kimura

Naoki Kojima

Yuki Ejiri

Takashi Suzuki

Osamu Kubota

Hidekazu Fujimura

Naoya Tokoo

The present invention addresses the problem of obtaining a battery capable of achieving a uniform temperature among a plurality of battery cells in a simple configuration while achieving size and weight reductions, and a battery module using the battery block. The battery block of the present invention has a structure such that a pair of end plates is disposed at both ends of a plurality of battery cells in an arranged direction; first spacers are disposed between the plurality of battery cells; and second spacers are disposed between the battery cells and the end plates. The first spacers have a space for allowing a flow of cooling gas. The second spacers block the flow of the cooling gas between the battery cells and the end plates and have a thermal insulating property for suppressing heat transmission between the battery cells and the end plates.

Battery block and battery module having same

The present invention proposes a structure of a battery module in which a spacer can slide by means of a guide member constituting the battery module and can be positioned. A battery module according to the present invention is a battery moduleprovided with a battery blockin which a plurality of rectangular battery cellsare arranged and laminated, and includes a spacerwhich intervenes between the plurality of battery cells, guide membersandwhich slidably support the spaceralong a laminating direction of the battery cells, and end platesas a pair which are respectively arranged on one side and the other side of the guide membersandin a sliding direction and which sandwich the battery blockfrom both sides in the sliding direction.

Battery module

Assembled battery

Growing community of inventors

Hitachi, Japan

Michihiro Kimura