Honda Motor Co., Ltd.

Daisuke Inoue

Satoshi Aoki

Yukihito Tanaka

Kensuke Umezawa

A fuel cell stack at least includes a stack body including a plurality of power generation cells each having a membrane electrode assembly stacked in a stacking direction, and a first dummy cell provided at one end of the stack body in the stacking direction. A dummy structural body of the first dummy cell is joined to a dummy resin frame member through an adhesive layer which adheres a first outer peripheral portion and a second outer peripheral portion, and inner periphery of the dummy resin frame member to each other.

Fuel cell stack and method of producing dummy cell

In a joining method in a method of producing a dummy cell, a dummy structural body and a dummy resin frame member are stacked together into a dummy stack body in a state where an adhesive is interposed between the dummy structural body and the dummy resin frame member, and heat and pressure are applied to the dummy stack body to harden the adhesive to join components of the dummy stack body together into a single piece of the dummy stack body. In the joining step, in a state where a limitation projection is brought into contact with an outer peripheral end surface of the dummy resin frame member to limit outward deformation of the dummy resin frame member, heat and pressure are applied to the dummy stack body.

Method of producing dummy cell and apparatus for producing dummy cell

A fuel cell stack at least includes a stack body formed by stacking a plurality of power generation cells in a stacking direction and a first dummy cell provided at one end of the stack body in the stacking direction. The power generation cell includes a membrane electrode assembly. The first dummy cell includes a dummy assembly formed by stacking together three electrically conductive porous bodies each having a different surface size, a dummy resin frame member formed around the dummy assembly, and dummy separators.

Fuel cell stack, fuel cell stack dummy cell, method of producing dummy cell

A fuel cell stack at least includes a first dummy cell provided at one end of a stack body formed by stacking a plurality of power generation cells in a stacking direction. A dummy assembly of the first dummy cell includes a first electrically conductive porous body, a second electrically conductive porous body, and a third electrically conductive porous body, which are stacked in this order. A first joint layer is interposed between the first electrically conductive porous body and the second electrically conductive porous body to join the first and second electrically conductive porous bodies together, and a second joint layer is interposed between the second electrically conductive porous body and the third electrically conductive porous body to join the second and third electrically conductive porous bodies together. The first joint layer and the second joint layer are provided at different positions in the stacking direction.

Growing community of inventors

Wako, Japan

Daisuke Inoue