Abstract: A fuel cell stack includes a stack body formed by stacking a plurality of fuel cells together in a stacking direction. A second end plate is provided at one end of the stack body in the stacking direction. A pair of coolant supply passages are provided at upper and lower positions of the second end plate for allowing a coolant to flow into the fuel cells. A coolant supply manifold member is attached to the second end plate, and an insulating plate is provided between the second end plate and the coolant supply manifold member.

Abstract: A fuel cell stack includes a stack body formed by stacking a plurality of fuel cells together in a stacking direction. A second end plate is provided at one end of the stack body in the stacking direction. A pair of coolant supply passages are provided at upper and lower positions of the second end plate for allowing a coolant to flow into the fuel cells. A coolant supply manifold member is attached to the second end plate, and an insulating plate is provided between the second end plate and the coolant supply manifold member.

Abstract: A first end plate that constitutes a fuel cell stack is provided with an oxidant gas supply manifold member that connects an oxidant gas inlet communication hole and a circular external pipe. The oxidant gas supply manifold member has a non-circular opening portion that communicates with the oxidant gas inlet communication hole and a circular opening portion that communicates with the circular external pipe. The non-circular opening portion is disposed within an area covered by the circular opening portion.

Abstract: A fuel cell stack includes a stack body formed by stacking a plurality of fuel cells together in a stacking direction. A second end plate is provided at one end of the stack body in the stacking direction. A pair of coolant supply passages are provided at upper and lower positions of the second end plate for allowing a coolant to flow into the fuel cells. A coolant supply manifold member is attached to the second end plate, and an insulating plate is provided between the second end plate and the coolant supply manifold member.

Abstract: A fuel cell stack includes a stack body formed by stacking a plurality of fuel cells together in a stacking direction. A second end plate is provided at one end of the stack body in the stacking direction. A pair of coolant supply passages are provided at upper and lower positions of the second end plate for allowing a coolant to flow into the fuel cells. A coolant supply manifold member is attached to the second end plate, and an insulating plate is provided between the second end plate and the coolant supply manifold member.

Abstract: A fuel cell vehicle includes a fuel cell stack and a housing that has first and second end plates and four side plates connecting the sides of the first and second end plates. Projections provided on the first and second end plates have openings communicating with a space formed between an inner wall of the housing and a fuel cell laminate.

Abstract: A unit cell of a fuel cell includes a membrane electrode assembly and a cathode side separator and an anode side separator sandwiching the membrane electrode assembly. An oxygen-containing gas supply passage connected to an oxygen-containing gas flow field is formed in the cathode side separator. The oxygen-containing gas supply passage has a rectangular shape extending in a flow field width direction of the oxygen-containing gas flow field. The width of the opening of the oxygen-containing gas supply passage on the short side is increased from the end side to the central side in the flow field width direction.

Abstract: A first end plate of a fuel cell stack has a coolant supply manifold and a coolant discharge manifold. The coolant supply manifold includes a pair of manifold sections and a supply coupling section coupling upper portions of the pair of supply manifold sections. The pair of supply manifold sections communicate with a pair of coolant supply passages of the first end plate. A coolant supply pipe is coupled to a lower end of one of the supply manifold sections with an inclination of a predetermined angle from a vertical direction toward a horizontal direction.

Abstract: A fuel cell stack has an asymmetrical triangular inlet buffer. An inlet connection channel connects a coolant supply passage on the upper side and the inlet buffer, and an inlet connection channel connects a coolant supply passage on the lower side and the inlet buffer. The number of flow grooves in the inlet connection channel is different from the number of flow grooves in the inlet connection channel.

Abstract: A fuel cell stack includes a plurality of fuel cells each including a first separator, a second separator and a membrane electrode assembly. A first reactant gas manifold of the first separator has an elongated opening extending along a ridge line of a first buffer portion and has an end wall surface that is located at an end of the first reactant gas manifold of the first separator near a middle portion of the first buffer portion and that is a convex curved surface. The convex curved surface and the first buffer portion are connected to each other through a channel that is bent or curved.

Abstract: A fuel cell includes a solid polymer electrolyte membrane, and a cathode separator and an anode separator sandwiching a solid polymer electrolyte membrane therebetween. The fuel cell includes an oxidant gas channel including a plurality of wave-shaped channel portions extending in a horizontal direction. Part of one of the plurality of wave-shaped channel portions that is disposed at the lower end in the vertical direction protrude downward from a planar region of electrode catalyst layers, i.e. a power generation region, in the vertical direction.

Abstract: A first end plate that constitutes a fuel cell stack is provided with an oxidant gas supply manifold member that connects an oxidant gas inlet communication hole and a circular external pipe. The oxidant gas supply manifold member has a non-circular opening portion that communicates with the oxidant gas inlet communication hole and a circular opening portion that communicates with the circular external pipe. The non-circular opening portion is disposed within an area covered by the circular opening portion.

Abstract: A fuel cell vehicle includes a fuel cell stack and a housing that has first and second end plates and four side plates connecting the sides of the first and second end plates. Projections provided on the first and second end plates have openings communicating with a space formed between an inner wall of the housing and a fuel cell laminate.

Abstract: A fuel cell stack includes a stack body formed by stacking a plurality of power generation cells. At one end of the stack body, a terminal plate, an insulating member, and an end plate are stacked. At the other end of the stack body, a terminal plate, an insulating member, and an end plate are stacked. A coolant channel is formed between the insulating member and the end plate for allowing a coolant to flow along a surface of the end plate.

Abstract: A fuel cell stack includes a stack body formed by stacking a plurality of fuel cells together in a stacking direction. A second end plate is provided at one end of the stack body in the stacking direction. A pair of coolant supply passages are provided at upper and lower positions of the second end plate for allowing a coolant to flow into the fuel cells. A coolant supply manifold member is attached to the second end plate, and an insulating plate is provided between the second end plate and the coolant supply manifold member.

Abstract: In a fuel cell stack, coolant supply passages are provided on both sides in the width direction of a coolant flow field. At an inlet of the coolant flow field, a substantially triangular inlet buffer is provided. A recess protruding inward of the substantially triangular shape is provided adjacent to a vertex of the inlet buffer protruding in a horizontal direction.

Abstract: A composition for cosmetics is provided, which has a UV shielding effect and which can produce a cosmetic having good dispersibility, an excellent UV shielding effect and excellent use feeling, cosmetic effect, long-lasting cosmetic performance. The cosmetic obtained by using the same is provided. The composition for cosmetics includes (A) microparticulate titanium dioxide, (B) one kind or two or more kinds of magnesium hydroxide and calcium hydroxide. The composition for cosmetics preferably contains further (C) a clay mineral. The compounding weight ratio among (A): (B): (C) is preferably 20 to 60: 3 to 40: 0 to 77. In addition, the composition for cosmetics is preferably one in which a mixed powder of (A), (B) and (C) is lipophilically treated.

Abstract: An end plate of a fuel cell stack is directly fixed to a humidifier. A resin pipe is attached to an oxygen-containing gas outlet of an end plate through a resin coupling pipe. The resin pipe includes one end having a large diameter and the other end having a small diameter. The other end is provided at an off gas supply channel of the humidifier. The off gas supply channel includes an inclined channel. The other end extends up to an end of the inclined channel where inclination of the inclined channel is started. An off gas ejection port is formed at the other end. The off gas ejection port is opened to the end of the inclined channel where inclination is started. Condensed water returned along the inclined channel flows from the off gas ejection port into the resin pipe.

Abstract: A fuel cell stack includes a stack body formed by stacking a plurality of power generation cells. At one end of the stack body, a terminal plate, an insulating member, and an end plate are stacked. At the other end of the stack body, a terminal plate, an insulating member, and an end plate are stacked. A coolant channel is formed between the insulating member and the end plate for allowing a coolant to flow along a surface of the end plate.

Abstract: A unit cell of a fuel cell includes a membrane electrode assembly and a cathode side separator and an anode side separator sandwiching the membrane electrode assembly. An oxygen-containing gas supply passage connected to an oxygen-containing gas flow field is formed in the cathode side separator. The oxygen-containing gas supply passage has a rectangular shape extending in a flow field width direction of the oxygen-containing gas flow field. The width of the opening of the oxygen-containing gas supply passage on the short side is increased from the end side to the central side in the flow field width direction.