For manufacturing a Zn-air battery, a semi-liquid hydrogel including a polymer component comprising an irradiation activatable crosslinking initiator, and including an electrolyte component is deposited on a zinc anode. At least parts of the semi-liquid hydrogel are irradiated to activate the irradiation activatable crosslinking initiator for crosslinking the polymer component such as to transform the semi-liquid hydrogel into a drop-free yet sticky hydrogel. An air cathode is stuck to the drop-free yet sticky hydrogel.

A process for producing a solid oxide reactor. The process begins by separately preparing an anode slurry and an electrolyte slurry. The electrolyte slurry is then tape casted onto a support layer to produce an electrolyte layer situated above the support layer. The anode slurry is then tape casted onto the electrolyte layer to produce a first multilayer structure comprising an anode layer situated above the electrolyte layer situated above the support layer. The support layer is then removed from the first multilayer structure to produce a second multilayer structure comprising the anode layer situated above the electrolyte layer. The second multilayer structure is then sintered to produce a solid oxide reactor.

The present invention provides a method for producing a fuel cell electrode which is configured to be able to deliver stable electricity generation performance even if the humidity condition of the external environment is changed. Disclosed is a method for producing a fuel cell electrode comprising a catalyst layer that contains a catalyst composite-carried carbon containing platinum, a titanium oxide and an electroconductive carbon, wherein the method comprises: a first step of decreasing an amount of acidic functional groups on a surface of the catalyst composite-carried carbon by firing the catalyst composite-carried carbon at 250 C. or more; a second step of producing a catalyst ink by mixing the catalyst composite-carried carbon obtained in the first step, an ionomer, and a solvent; and a third step of forming the catalyst layer using the catalyst ink obtained in the second step.

An electrode for a fuel cell system is provided. The electrode includes a carbon support. The carbon support includes carbon particles each functionalized with one or more sulfur and oxygen-containing moieties. Platinum-based catalyst particles are disposed on the carbon support. Ionomer is disposed on the carbon support. A weight ratio of the ionomer to the carbon support is about 0.4 or less.

A method for producing a fuel cell catalyst layer configured to prevent an increase in cell resistance, have excellent IV characteristic, and be even. The method includes the steps of: preparing a catalyst composite that comprises a titanium oxide support and platinum or a platinum alloy supported on a surface thereof, and an ionomer; mixing the catalyst composite, the ionomer, and a dispersion medium containing at least water and a tertiary alcohol having from 4 to 6 carbon atoms where a content ratio of the tertiary alcohol is the highest; and, while pulverizing aggregates comprising the catalyst composite and the ionomer, dispersing a mixture obtained by the pulverization in the dispersion medium.

This invention relates to a single-phase perovskite-based solid electrolyte, a solid oxide fuel cell including the same, and a method of manufacturing the same. The method of the invention includes stirring and pulverizing a mixed oxide including lanthanum oxide (La.sub.2O.sub.3), strontium carbonate (SrCO.sub.3), gallium oxide (Ga.sub.2O.sub.3) and magnesium oxide (MgO); and obtaining an LSGM powder by subjecting the pulverized mixed oxide to primary calcination at a first temperature and then secondary calcination at a second temperature that is higher than the first temperature.

The present invention relates to a production method for a support type ceramic membrane using tape casting, wherein, when producing a multifunctional membrane comprising a membrane structure such as a general electrochemical device or electrolysis cell or fuel cell, a dense-structure coating membrane or porous functional (separation) membrane is produced on one or more surfaces of a porous support.

Disclosed are a nickel/nickel hydroxide electrode catalyst, a preparation method thereof and an application thereof, the catalyst includes a porous matrix structure and a nanosheet, where the nanosheet is doped in the porous matrix structure, a mass percentage of the porous matrix structure is 95%-99%, a mass percentage of the nanosheet is 1%-5%, and a mass density of the nanosheet is 12-15 mg/cm.sup.2; and the porous matrix structure is nickel, and the nanosheet is nickel hydroxide in configuration. The present disclosure develops an electrode catalyst with higher catalytic efficiency and a simpler preparation method based on the Ni-based catalysts to achieve efficient application of hydrogen energy.

A proton exchange composite membrane (PECM) and a method of synthesizing the membrane are disclosed. The PECM may include a PBI membrane doped with an acid, an imidazolium-based dicationic ionic liquid, and a mesoporous material. This PECM can be used as an improved high-temperature polymer electrolyte membrane (HT-PEM) fuel cell. The disclosed fuel cell can provide improved proton conductivity, acid uptake, and thermal stability.

The invention provides a permeable metal substrate and its manufacturing method. The permeable metal substrate includes a substrate body and a permeable powder layer. The permeable powder layer is located on the top of the substrate body. The substrate body can be a thick substrate or formed of a thick substrate and a thin substrate that are welded together. Both the thick and thin substrates have a plurality of permeable straight gas channels. In addition, a metal-supported solid oxide fuel cell and its manufacturing method are also provided.