Abstract: The battery module includes: battery stack including a plurality of batteries that are stacked, each of the plurality of batteries having valve portion; duct plate configured to cover a surface of battery stack on which a plurality of valve portions are disposed, duct plate having gas discharge duct that temporarily stores a gas blown off from valve portions of respective batteries; cover plate placed on duct plate; and a flow path portion defined by duct plate and cover plate, the flow path portion extending from gas discharge duct and allowing leaking of the gas in gas discharge duct to an outside of the battery module. Cover plate includes first vertical wall portion at an end portion of cover plate in stacking direction of batteries, first vertical wall portion extending in a second direction along which cover plate and duct plate are arranged and overlapping with duct plate as viewed in stacking direction of batteries.

Abstract: Battery module includes: battery stack including a plurality of batteries that are stacked, each of the plurality of batteries having valve portion; duct plate configured to cover a first surface of battery stack on which a plurality of valve portions are disposed, duct plate having gas discharge duct that temporarily stores a gas blown off from valve portions of respective batteries; cover plate placed on duct plate; flow path portion defined by duct plate and cover plate, flow path portion being connected to gas discharge duct through opening, flow path portion extending in a first direction that intersects with stacking direction of the batteries, flow path portion allowing leaking of the gas in gas discharge duct to an outside of battery module; and gas restricting wall portion disposed in gas discharge duct between valve portion and opening.

Abstract: The battery module includes: battery stack including a plurality of batteries that are stacked, each of the plurality of batteries having valve portion; duct plate configured to cover a surface of battery stack on which the plurality of valve portions are disposed, duct plate having gas discharge duct that is connected to valve portions of the respective batteries, and temporarily stores a blown-off gas; cover plate placed on duct plate; and flow path portion defined by duct plate and cover plate, flow path portion extending from gas discharge duct in a first direction that intersects with stacking direction and allowing leaking of the gas in gas discharge duct to an outside of battery module. Cover plate has opening through which a midst portion of flow path portion is communicable with the outside of the battery module.