Kabushiki Kaisha Toyota Jidoshokki

Toyota Jidosha Kabushiki Kaisha

Hirokazu Kotake

Motoyoshi Okumura

Naoto Morisaku

Satoshi Morioka

Satoshi Hamaoka

Takuro Kikuchi

Kojiro Tamaru

Taku Inoue

Takafumi Yamasaki

Hiroki Maeda

Tsuyoshi Mariya

Daiki Terashima

Akihito Tsuge

Yusuke Hase

A power storage device includes a module laminate including a plurality of power storage modules arranged in one direction; a pair of end plates respectively arranged at both ends of the module laminate in the one direction; a fastening bolt configured to fasten the pair of end plates together around the module laminate and apply a predetermined restraint load to the module laminate via the end plate; and a collar member including a through-hole allowing the fastening member to be inserted therethrough, the collar member being sandwiched by the pair of end plates around the module laminate. The through-hole of the collar member is eccentric with respect to a center axis of the collar member so as to approach a side where the module laminate is arranged.

Power storage device

A power storage device includes a pair of holding plates, several ribs and thin-walled portions. The ribs includes first ribs inclined to an extending direction of a first edge and an extending direction of a second edge and extending along straight lines connecting first engaging portions and second engaging portions, and second ribs extending along a facing direction in which the first edge and the second edge face each other. At least first ribs extend in different directions from each other and form an intersection where the at least two first ribs intersect with each other. At least one of the second ribs has opposite ends connected to the first ribs intersecting with each other.

A power storage device includes a plurality of laminated power storage modules, a flow path member disposed in contact with the power storage modules and having flow paths for allowing a cooling medium to flow along a first direction intersecting a laminating direction of the power storage modules, a pair of restraining plates disposed to sandwich the power storage modules and the flow path member in the laminating direction, fastening members applying a restraining load to the power storage modules and the flow path member via the pair of restraining plates by fastening the restraining plates to each other, and a lead-in duct disposed at one end portion of the flow path member in the first direction and leading the cooling medium into each of the flow paths.

A power storage moduleaccording to a first aspect includes: a laminated bodyin which bipolar electrodesincluding an electrode plate, a positive electrode, and a negative electrode, are laminated; a frame bodyprovided with an openingcommunicated with a plurality of internal spaces V; and a pressure adjustment valveconnected to the opening. The pressure adjustment valveincludes a base memberconnected to the openingand provided with a plurality of communication holesrespectively communicated with the plurality of internal spaces V, a valve bodyarranged to shut opening endsof the plurality of communication holes, and a cover memberpressing the valve bodyagainst the base member

Power storage module and method for manufacturing power storage module

A power storage module includes a laminate constituted of a plurality of laminated bipolar electrodes, each of the bipolar electrodes including an electrode plate, a positive electrode provided on one surface of the electrode plate, and a negative electrode provided on the other surface of the electrode plate, wherein a plurality of internal spaces is formed between the bipolar electrodes adjacent to each other in the laminate; a frame body holding an edge portion of the electrode plate and provided with an opening communicating with at least one of the plurality of internal spaces; and a pressure regulating valve attached to the frame body.

Growing community of inventors

Kariya, Japan

Hirokazu Kotake