A fuel cell system component includes a glass ceramic composite.

A radical-curable seal member for fuel cell 4 having a glass transition temperature of −40° C. or lower made from a crosslinked product of a radical-curable composition containing (A) (Meth)acrylic polymer having a (meth)acryloyl group at a molecular chain end, (B) Monofunctional (meth)acrylic monomer, (C) Polyfunctional (meth)acrylic monomer and (D) Radical polymerization initiator, wherein the radical-curable composition contains 20 to 90 weight parts of component (B), 1 to 10 weight parts of component (C), 0.01 to 10 weight parts of component (D) with respect to 100 weight parts of component (A), a weight ratio [(B)/(C)] of the component (B) with respect to the component (C) being 4 to 24, and a content [(C)/{(A)+(B)+(C)}] of the component (C) with respect to a total of 100 wt % of the component (A), the component (B), and the component (C) being 1 to 7 wt %.

A fuel cell includes: an electrolyte membrane; a cathode positioned on a first surface of the electrolyte membrane; an anode positioned on a second surface of the electrolyte membrane; a cathode-side sealant positioned on a surface of the cathode different from the electrolyte membrane side of the cathode; an anode-side sealant positioned on a surface of the anode different from the electrolyte membrane side of the anode; a cathode-side separator positioned on a surface of the cathode-side sealant different from the cathode side of the cathode-side sealant; and an anode-side separator positioned on a surface of the anode-side sealant different from the anode side of the anode-side sealant. The anode-side separator has a projection on a surface stacked on the anode-side sealant, or the cathode-side separator has a projection on a surface stacked on the cathode-side sealant.

A fuel cell includes: an electrolyte membrane; a cathode positioned on a first surface of the electrolyte membrane; an anode positioned on a second surface of the electrolyte membrane; a cathode-side sealant positioned on a surface of the cathode different from the electrolyte membrane side of the cathode; an anode-side sealant positioned on a surface of the anode different from the electrolyte membrane side of the anode; a cathode-side separator positioned on a surface of the cathode-side sealant different from the cathode side of the cathode-side sealant; and an anode-side separator positioned on a surface of the anode-side sealant different from the anode side of the anode-side sealant. The anode-side separator has a projection on a surface stacked on the anode-side sealant, or the cathode-side separator has a projection on a surface stacked on the cathode-side sealant.

A join is provided that has an electrically insulating component and two joining partners secured to one another and electrically insulated from one another by the electrically insulating component. The electrically insulating component has a surface that extends between the two joining partners. The surface defines a structure selected from a group consisting of an elevation, a depression, and any combinations thereof. The structure elongates a direct path along the surface. The structure completely surrounds at least one of the two joining partners. The electrically insulating component and/or the structure includes a glass that is at least partially crystallized.

The disclosure relates to a brazing method for joining substrates, in particular where one of the substrates is difficult to wet with molten braze material. The method includes formation of a porous metal layer on a first substrate to assist wetting of the first substrate with a molten braze metal, which in turn permits joining of the first substrate with a second substrate via a braze metal later in an assembled brazed joint. Ceramic substrates can be particularly difficult to wet with molten braze metals, and the disclosed method can be used to join a ceramic substrate to another substrate. The brazed joint can be incorporated into a solid-oxide fuel cell, for example as a stack component thereof, in particular when the first substrate is a ceramic substrate and the joined substrate is a metallic substrate.

The disclosure relates to a brazing method for joining substrates, in particular where one of the substrates is difficult to wet with molten braze material. The method includes formation of a porous metal layer on a first substrate to assist wetting of the first substrate with a molten braze metal, which in turn permits joining of the first substrate with a second substrate via a braze metal later in an assembled brazed joint. Ceramic substrates can be particularly difficult to wet with molten braze metals, and the disclosed method can be used to join a ceramic substrate to another substrate. The brazed joint can be incorporated into a solid-oxide fuel cell, for example as a stack component thereof, in particular when the first substrate is a ceramic substrate and the joined substrate is a metallic substrate.

A solid oxide fuel cell stack having a metallic layer and a glass layer, and a method for preventing or reducing a chemical reaction between the metallic layer and the glass layer are disclosed. The solid oxide fuel cell stack has a barrier layer disposed between the metallic layer and the glass layer. The barrier layer includes alumina and a phosphate. The phosphate includes an aluminum dihydrogen phosphate, an aluminum-containing phosphate, a phosphate of an element of the metallic layer, a phosphate of an element of the glass layer, or combinations thereof. The method includes disposing a barrier layer between the metallic layer and the glass layer.

A solid oxide fuel cell stack having a metallic layer and a glass layer, and a method for preventing or reducing a chemical reaction between the metallic layer and the glass layer are disclosed. The solid oxide fuel cell stack has a barrier layer disposed between the metallic layer and the glass layer. The barrier layer includes alumina and a phosphate. The phosphate includes an aluminum dihydrogen phosphate, an aluminum-containing phosphate, a phosphate of an element of the metallic layer, a phosphate of an element of the glass layer, or combinations thereof. The method includes disposing a barrier layer between the metallic layer and the glass layer.

A metal frame for sealing a solid oxide fuel cell. The metal frame comprises both a metal top frame positioned on top of a middle frame and a metal bottom frame that is positioned below a middle frame.