Honda Motor Co., Ltd.

Shoshi Hidaka

Ryu Tate

Kyosuke Miyoshi

Satoshi Takada

Hideaki Sakai

Yoshiatsu Asai

Itsuki Shimazaki

Yohei Azuma

A power storage apparatus includes: a tubular casing extending in a first direction; a cell group configured by stacking a plurality of battery cells in the first direction; opening parts arranged at both ends of the tubular casing in the first direction; a housing part arranged inside the tubular casing and housing the cell group; an end plate fixed to the tubular casing so as to close the opening party; and a reinforcement member fixed across the tubular casing and the end plate, wherein one end part of the reinforcement member is fixed to a first fixation part provided on an outer wall part, of the tubular casing, the outer wall part being arranged in a second direction perpendicular to the first direction, and another end part of the reinforcement member is fixed to a second fixation part provided on an outer part of the end plate.

Power storage apparatus

A power storage device comprises: a cell group in which a plurality of battery cells are stacked; a cylindrical housing part that houses the cell group and has an opening at each end in a stacking direction of the battery cells; an end plate that covers the opening in the housing part; a vehicle body fastening member that is formed separately from the housing part and fastens the housing part to a vehicle body; and a bolt that fastens the end plate to the housing part, wherein the vehicle body fastening member has a threaded portion to be threadedly engaged with the bolt, and is fixed to the housing part by threadedly engaging the threaded portion with the bolt provided through the end plate and the housing part.

Power storage device

A battery device is provided with: an exterior body having two outer side walls; a plurality of battery cell groups that are arranged in parallel between the two outer side walls and that are each composed of a plurality of laminated battery cells; and holding mechanisms that are arranged between the plurality of battery cell groups and that hold the plurality of respective battery cell groups in the exterior body by applying, to the plurality of battery cell groups, a pressing force in a direction in which the battery cell groups are separated from each other and are pressed towards the two opposite outer side walls.

Battery device and method for manufacturing battery device

A power storage device comprises: a cell group in which a plurality of battery cells each having a terminal on a first surface are stacked; a cylindrical housing part that houses the cell group; a first plate member extending from the first surface of each of the battery cells in the cell group to side surfaces of each of the battery cells, the side surfaces being adjacent to the first surface, the first plate member being housed in the housing part together with the cell group; a cell side protrusion portion protruding from a portion extending on each of the side surfaces of each of the battery cells toward an inner wall surface of the housing part in the first plate member; and an insertion member that is press-fitted to contact both of the cell side protrusion portion and the inner wall surface disposed closer to the first surface side than the cell side protrusion portion, and presses the cell group against an opposite side of a side facing the first surface via the cell side protrusion portion.

A battery device is provided with: an exterior body having two outer side walls; at least one battery cell group that is arranged between the two outer side walls of the exterior body and that is composed of a plurality of laminated battery cells; a first temperature-adjusting medium flow path that is provided in at least one of the two outer side walls of the exterior body and in which a temperature-adjusting medium capable of exchanging heat with the battery cells via the outer side wall flows; and a holding mechanism that brings the battery cell group into contact with the outer side wall so that heat can be exchanged and that holds the battery cell group in the exterior body by applying, to the battery cell group in the exterior body, a pressing force in a direction towards the outer side wall having the first temperature-adjusting medium flow path.

Battery device including battery cell group configured by a plurality of laminated battery cells in outer packaging and method for manufacturing the battery device

A battery case of an electric vehicle includes a drain hole for discharging water in the interior to the outside and a water detection device disposed in the vicinity of the drain hole. At least part of an upper face of a case bottom wall of the battery case is inclined downward toward the drain hole. Accordingly, not only is it possible to mold the downward inclination of the upper face of the case bottom wall of the battery case easily at the time of die casting without increasing the number of components, but it is also possible to guide water that has entered the interior of the battery case smoothly toward the drain hole, detect it reliably by the water detection device, and discharge it quickly via the drain hole.

Growing community of inventors

Wako, Japan

Shoshi Hidaka