A method of making a solid oxide fuel cell (SOFC) includes the steps of providing a first SOFC layer laminate tape comprising a first SOFC layer composition attached to a flexible carrier film layer, providing a second SOFC laminate tape comprising a second SOFC layer composition attached to a flexible carrier film layer, and providing a third SOFC layer laminate tape comprising a third SOFC layer composition attached to a flexible carrier film layer. The first SOFC layer laminate tape, the second SOFC layer laminate tape, and the third SOFC layer laminate tape are assembled on rolls positioned along a roll-to-roll assembly line. The laminate tapes are sequentially laminated and calendered and the flexible carrier films removed to provide a composite SOFC precursor laminate that can be sintered and combined with a cathode to provide a completed SOFC. An assembly for making composite SOFC precursor laminates is also disclosed.

A cell structure includes a cathode, an anode, and a solid electrolyte layer interposed between the cathode and the anode, the cathode being in the form of a sheet, the anode being in the form of a sheet, the solid electrolyte layer being in the form of a sheet, the solid electrolyte layer being disposed on the anode, the cathode being disposed on the solid electrolyte layer, the cathode having a resistance Rc, the anode and the solid electrolyte layer having a resistance Ra, the resistance Rc and the resistance Ra satisfying a relationship of Rc/Ra0.3, the cathode including a first metal oxide having a perovskite crystal structure, the cathode having a thickness larger than 15 m and equal to or less than 30 m.

Provided is an electrolyte layer-anode composite member for a fuel cell, the electrolyte layer-anode composite member including an anode and a solid electrolyte layer having ion conductivity, the anode being an aggregate of granules including a composite metal, the composite metal including a nickel element and an iron element, the granules including a plurality of pores, the composite metal accounting for 80% by mass or more of the anode, the anode having a bulk density of 75% or less of a real density of the composite metal. Also provided is a cell structure including the electrolyte layer-anode composite member for a fuel cell described above, and a cathode arranged on a side of the solid electrolyte layer.

The invention relates to a method for manufacturing a membrane-electrode assembly for a fuel cell, the method comprising the following steps: A first step during which a chemical catalyst element is deposited on a first face of an ion-exchanging membrane, the membrane being held on a support film, A second step during which the membrane is unglued from the support film, A third step during which the membrane is inserted between two reinforcing elements, and A fourth step during which a chemical catalyst element is deposited on the part left free of the second face of the membrane.

A method for manufacturing a membrane-electrode assembly for a fuel cell comprises the following steps: a first step during which a reinforcement (2) is deposited on a first face of an ion-exchanging membrane (1), the membrane being held on a support film; a second step during which the membrane is unglued from the support film; a third step during which the reinforcement (2) is deposited on the second face of the ion-exchanging membrane; and a fourth step during which a chemical catalyst element is deposited on the parts left free of the first and second faces of the membrane.

Disclosed is a method of manufacturing a membrane electrode assembly with minimized interfacial resistance between an electrode and an electrolyte membrane. For instance, a catalyst admixture including a catalyst composite including a catalyst and a first binder, and a second binder may be applied to a porous substrate and the porous substrate may be impregnated with the second binder, thereby minimizing interfacial resistance between the electrode and the electrolyte membrane and reducing a thickness of the electrolyte membrane.

This invention relates to a method for preparing of a submicro/nano-porous NiO/apatite-type lanthanum silicate anode functional layer. In the method a functional layer nanopowder, ethyl cellulose and terpineol are added into a rotary evaporation bottle containing anhydrous ethanol, and a suspension obtained after mixing is dispersed ultrasonically. The anhydrous ethanol in the suspension is removed by a rotary evaporator. When the suspension becomes a viscous paste, the paste is taken out and ground to complete the preparation of a functional layer paste. The functional layer paste is applied onto an anode substrate by screen printing, and 3 sublayers are screen printed. After dried, the sublayers are heat treated and sintered. The heating rate, the cooling rate and the holding time are controlled in the heating and cooling processes to complete the preparation of the anode functional layer.

A gas diffusion layer, a preparation method therefor, a membrane electrode assembly and a fuel cell. The gas diffusion layer comprises gas diffusion layer substrates (41, 42) and a microporous layer slurry coated on the gas diffusion layer substrates (41, 42). An additive that contains catechol or contains a catechol structure compound is specifically added into the microporous layer slurry, and the additive is specifically dopamine hydrochloride.

A fuel cell may include a fuel supply unit for supplying hydrogen to a fuel cell stack; an air supply unit for supplying air to the fuel cell stack; and the fuel cell stack that generates energy using hydrogen and air supplied from the fuel supply unit and the air supply unit, wherein the fuel cell stack has a mesh structure and comprises a conductive polymer electrode containing about 0.1 to 1 wt % of polyethylene oxide (PEO) having a molecular weight of about 1,000 to 6,000 kg/mol.

A membrane electrode assembly (MEA) includes an ionically-conductive proton exchange membrane. Further, the MEA includes an anode contacting a first side of the membrane. The anode includes an anode gas diffusion layer (GDL). Further, the anode includes a first anode catalyst layer containing first catalyst particles, a hydrophobic polymer bonding agent, and a first ionomer bonding agent that lacks functional chains on a molecular backbone. The anode also includes a second anode catalyst layer containing second catalyst particles and a second ionomer bonding agent that includes functional chains on a molecular backbone. The MEA also includes a cathode contacting a second side of the membrane and comprising third catalyst particles and a cathode GDL.