Abstract: A fuel cell in a fuel cell stack is provided with a gas seal projection and a coolant seal projection projecting from at least one of two separators toward a membrane electrode assembly. The gas seal projection and the coolant seal projection are provided with recesses serving as coolant passages on the side opposite to the membrane electrode assembly. At least one of the gas seal projection and the coolant seal projection is provided with a resistance portion for suppressing a flow of a coolant out of a power generation portion cooling portion.

Abstract: A method for creating a formed-in-place seal on a fuel cell plate is disclosed. The method includes first dispensing a flowable seal material along a first sealing area of a fuel cell plate requiring the seal material. Next, a preformed template is located adjacent to at least a portion of the fuel cell plate, the template including predetermined apertures corresponding with a second sealing area of the plate, such that the apertures are coextensive with at least a portion of the first sealing area. Flowable seal material is applied into the apertures, and is then cured to a non-flowable state.

Abstract: The fuel cell catalyst layer has: a catalyst including a carbon support having pores with a pore diameter of from 1 nm to 5 nm and a catalyst metal supported within the pores of the carbon support; and an ionomer having a glass transition temperature equal to or greater than 160° C.

Abstract: Disclosed herein are embodiments of compositions comprising polyols and cationic group-functionalized polyphenylene polymers suitable for use in electrochemical systems. The disclosed composition exhibit improved dispersion properties and further provide anion exchange polymer membranes exhibited improved chemical and mechanical properties. Also disclosed herein are methods of making and using the disclosed compositions.

Abstract: First, a passive film is removed from a surface of a separator sheet. For example, the separator sheet may be immersed in an acidic liquid to remove the passive film. Then, the separator sheet is washed with water, taken out from the water, and heated. After the heating, the separator sheet is subjected to an electrolytic treatment to obtain a separator for a fuel cell. The resultant separator has a seal forming portion, and the outermost surface of the seal forming portion contains, based on 100% by weight of the total of a Cr oxide, an Mo oxide, an Fe oxide, Fe, and Ni, 5% by weight or less of the sum of the Fe and Ni and 60% by weight or more of the Cr oxide.

Abstract: A fuel cell assembly with at least one proton exchange membrane (PEM) fuel cell for generating electrical energy from the reactant gases hydrogen and oxygen, which includes at least one membrane/electrode unit having a membrane that is coated with platinum electrodes and, respectively positioned on each side thereof, a porous gas diffusion layer, or which has a membrane and, respectively positioned on each side thereof, a porous gas diffusion layer that is coated with a platinum electrode, and which includes bipolar plates that lie against the gas diffusion layers and through which, during operation, a coolant flows, where access by at least one of the reactant gases to the membrane is blocked by a mechanical block for a part of an edge region of the membrane/electrode unit In order to prevent damage to the membrane.

Abstract: A porous solid oxide fuel cell (PSOFC) system for electricity and syngas co-generation. The system has a porous layer, a porous electrolyte layer with catalyst, a porous anode layer, and a porous catalyst layer. A fuel air/O2 mixture is introduced from through the porous cathode layer so that it next passes through the porous electrolyte layer with catalyst, then the porous anode layer, and finally the porous catalyst layer. Syngas exits the porous catalyst layer with electricity being produced across the anode and cathode layers.

Abstract: The purpose of the present invention is to provide a redox flow secondary battery which has low electrical resistance and excellent current efficiency in addition to durability. The present invention relates to: an electrolyte membrane for redox flow secondary batteries, which contains an ion exchange resin composition containing a fluorine-based polymer electrolyte; and a redox flow secondary battery which uses the electrolyte membrane for redox flow secondary batteries.

Abstract: A resin-framed membrane-electrode assembly for a fuel cell includes a stepped membrane-electrode assembly, a resin frame, and a water-impermeable layer. The stepped membrane-electrode assembly includes a solid polymer electrolyte membrane having a first surface and a second surface opposite to the first surface, a first electrode provided on the first surface, and a second electrode provided on the second surface. The second surface has an exposed surface on an area outside of an outer periphery of the second electrode. The water-impermeable layer is disposed on the exposed surface of the solid polymer electrolyte membrane so that the exposed surface is bonded to an inner protruding portion of the resin frame via the water-impermeable layer and an adhesive and so that a region of the exposed surface where the water-impermeable layer is disposed is larger than a region of the water-impermeable layer where the adhesive is applied.

Abstract: A polymer electrolyte composition is excellent in practicality which has such an excellent chemical stability as to be able to withstand a strong oxidizing atmosphere during operation of a fuel cell and is capable of achieving excellent proton conductivity under a low-humidified condition and excellent mechanical strength and physical durability as well as a polymer electrolyte membrane, a membrane electrode assembly, and a polymer electrolyte fuel cell which use the polymer electrolyte composition. The polymer electrolyte membrane is a polymer electrolyte membrane that contains at least an ionic group-containing polymer electrolyte and a polyazole, which is a polymer electrolyte membrane in which a phase separation of 2 nm or larger in which the polyazole is a main component is not observed in transmission type electron microscopic observation.

Abstract: A charge-transporting thin film having excellent flatness can be obtained with good repeatability using the charge-transporting varnish of the present invention, which contains: a charge transportation substance comprising a charge-transporting monomer or a charge-transporting oligomer or polymer having a number-average molecular weight of 200-50,000, or a charge transporting material comprising the charge transportation substance and a dopant substance; and a mixed solvent including at least one type of good solvent and at least one type of poor solvent; the absolute value of the boiling point difference ?T° C. of the good solvent and the poor solvent satisfying the relation |?T|<20° C.; the viscosity at 25° C. being 7.5 mPa·s or less; the surface tension at 23° C. being 30.0-40.0 mN/m; and the charge-transporting material being dissolved or uniformly dispersed in the mixed solvent.

Abstract: A process for producing a separator material suitable for fuel cells, wherein the separator includes a pure titanium or a titanium alloy as a base material. The method comprises an application step and a heat treatment step. The application step is a step of applying a carbon black to a surface of the base material which has a carbon concentration, at a position located at a depth of 10 nm from an outermost surface, of 10 atom % or less. The heat treatment step subjects the base material, which has undergone the application step, to a heat treatment in a low-partial-oxygen-pressure atmosphere having a partial oxygen pressure of 0.0667 Pa or more and 25 Pa or less.

Abstract: To provide a process for forming a polymer electrolyte membrane having good durability and few wrinkles, a polymer electrolyte membrane capable of forming a catalyst layer, or a catalyst layer; a process for producing a fluorinated ion exchange resin fluid, or a paste for forming a catalyst layer, which can be used for such a forming process; and a process for producing a membrane/electrode assembly for a polymer electrolyte fuel cell having good durability and power generation properties. A fluorinated ion exchange resin fluid obtained by subjecting a powder or pellets of a fluorinated ion exchange resin having cation exchange groups to hydrogen peroxide treatment, followed by mixing with a solvent, is used.

Abstract: An apparatus for manufacturing a membrane electrode assembly includes a suction roller, a porous base material supply roller, a porous base material collection roller, a laminated base material supply roller, an assembly collection roller, an application part disposed around the suction roller and a maintenance space for the maintenance of the application part. The porous base material supply roller and the porous base material collection roller are disposed on the opposite side of the suction roller from the maintenance space as seen in a horizontal direction. The porous base material supply roller and the porous base material collection roller are collectively disposed on one side of the suction roller. This configuration ensures the maintenance space on the opposite side of the suction roller, and lowers the height dimension of the manufacturing apparatus.

Abstract: According to one embodiment, a reduction catalyst includes a charge collector having a metal layer on a surface; and a modified organic molecule bound to a surface of the metal layer and containing a quaternary nitrogen cation.

Abstract: Disclosed is a reinforced membrane-seal assembly, the reinforced membrane-seal assembly including: an inner region and a border region and wherein the inner region includes ion-conducting component and the border region includes seal component; wherein first and second planar porous reinforcing components each extend across the inner region into the border region and wherein the pores of each of the first and second planar porous reinforcing components in the inner region are impregnated with ion-conducting component and the pores of each of the first and second planar porous reinforcing components in the border region are impregnated with seal component is disclosed. Also disclosed is a catalyst-coated reinforced membrane-seal assembly, a reinforced membrane-seal electrode assembly and an electrochemical device including the reinforced membrane-seal assembly.

Abstract: A method is provided for determining a spatial distribution (Wcx,yf) of a parameter of interest (Wc) representative of a catalytic activity of an active layer of at least one electrode among two electrodes of an electrochemical cell, including steps of providing the cell, within which the parameter of interest (Wc) has an initial spatial distribution (Wcx,yi) of one or more values of catalytic load; defining a spatial distribution (Tx,yc) of a set-point temperature (Tc) within the cell in operation; measuring a spatial distribution (Dx,yr) of a first thermal quantity (Dr) within the cell in operation; estimating a spatial distribution (Wcx,ye) of a second thermal quantity (Qe) within the cell in operation, depending on the spatial distribution (Tx,yc) and on the measured spatial distribution (Dx,yr); and determining the spatial distribution (Wcx,yf) of the parameter of interest (Wc) depending on the estimated spatial distribution (Qx,ye) of the second thermal quantity (Qe).

Abstract: Provided herein are methods of forming solid-state ionically conductive composite materials that include particles of an inorganic phase in a matrix of an organic phase. The methods involve forming the composite materials from a precursor that is polymerized in-situ after being mixed with the particles. The polymerization occurs under applied pressure that causes particle-to-particle contact. In some embodiments, once polymerized, the applied pressure may be removed with the particles immobilized by the polymer matrix. In some implementations, the organic phase includes a cross-linked polymer network. Also provided are solid-state ionically conductive composite materials and batteries and other devices that incorporate them. In some embodiments, solid-state electrolytes including the ionically conductive solid-state composites are provided. In some embodiments, electrodes including the ionically conductive solid-state composites are provided.

Abstract: A separator for a fuel cell includes a plurality of channels; and an inlet hole and an outlet hole formed in a first side and a second side of the plurality of channels, respectively, such that a reaction gas flows into and out from the separator to be exposed to a reaction surface including a membrane electrode assembly. The inlet hole is larger in size than the outlet hole.

Abstract: In an organic electroluminescence device (100), a hole transport layer (22) is formed of a cured resin obtained by a ring opening polymerization of a polymerizable compound (a) containing a ring opening polymerizable group in the presence of a polymerization initiator (b). In addition, both of a maximum peak height Rp and a maximum valley depth Rv in an upper surface of the hole transport layer (22) are less than or equal to 14 nm. Accordingly, an organic electroluminescence device having excellent mass productivity and high luminescent efficiency is realized.

Abstract: The present invention includes a solvent system comprising a pristine nanoparticle solute suspended in a liquid solvent. The solute is selected from the group consisting of a metal oxide, a mixed metal oxide, a chalcogenide, and a mixed metal chalcogenide; and the solvent system is characterized by a value of chi less than about 0.00.

Abstract: An object of the present invention is to provide a membrane-electrode-frame assembly which suppresses reductions in power generation properties due to gas cross leakage of a polymer electrolyte fuel cell, which improves durability of a polymer electrolyte membrane and which exhibits superior productivity. In the membrane-electrode-frame assembly, an unwoven fabric which has two domains each having different pore sizes and which is formed with fibers of PVDF is disposed as a reinforcing membrane in a polymer electrolyte membrane for a polymer electrolyte fuel cell, and a domain having a smaller pore size and protruding from the polymer electrolyte membrane and a frame are formed into an integrated structure by welding, thereby improving a gas sealing capability.

Abstract: An activated carbon composition having a relatively high transition metal content and a low covalent oxygen as defined herein. Also disclosed is a method of making and using the disclosed activated carbon composition, and an EDLC article incorporating the activated carbon composition.

Abstract: Disclosed is a nanotubular intermetallic compound catalyst for a positive electrode of a lithium air battery and a method of preparing the same. In particular, a porous nanotubular intermetallic compound is simply prepared using electrospinning in which a dual nozzle is used, and, by using the same as a catalyst, a lithium air battery having enhanced discharge capacity, charge/discharge efficiency and lifespan is provided.

Abstract: A system with a non-thermal, repetitively-pulsed gliding discharge reactor for converting gaseous hydrocarbons into liquid fuels efficiently. The system optionally contains a gas separator for removing non-hydrocarbon components from the gaseous hydrocarbon feed to improve efficiency of the system. The system may optionally reclaim hydrogen gas from the product gas for storage, transportation or power generation.

Abstract: To provide a method for producing a liquid composition or a coating liquid for forming a catalyst layer, which can make cracking less likely to occur at the time of forming a solid polymer electrolyte membrane or a catalyst layer; and a method for producing a membrane electrode assembly, which can make cracking less likely to occur at the time of forming the catalyst layer or the solid polymer electrolyte membrane.

Abstract: The invention relates to a curable composition for dental use comprising polyoxymetalates and/or derivatives thereof in an amount of at least about 5 wt.-% with respect to the weight of the composition.

Abstract: A fuel cell includes a membrane electrode assembly and separators, an inner sealing member and an outer sealing member, a coolant channel, a base seal, an inner protrusion and an outer protrusion, and a middle protrusion. The membrane electrode assembly and the separators are stacked in a stacking direction. The inner sealing member and the outer sealing member are disposed between a first separator and a second separator. The base seal is disposed on at least one of separator surfaces between the second separator and a third separator. The inner protrusion and the outer protrusion are provided on the base seal so as to respectively overlap the inner sealing member and the outer sealing member when viewed in the stacking direction and so as to protrude between the second separator and the third separator in the stacking direction.

Abstract: A solid oxide fuel cell or a solid oxide electrolyzing cell, including a plurality of cathode-anode-electrolyte units, each CAE-unit having a first electrode for an oxidizing agent, a second electrode for a combustible gas, and a solid electrolyte between the first electrode and the second electrode and an interconnect between the CAE-units. The interconnect including oxidant inlet and outlet sides defining an oxidant flow direction of the oxidizing agent flow, a first gas distribution element. The first gas distribution element contacts the second electrode of the CAE-unit, and a second gas distribution element with oxidizing agent has channels connecting the oxidant inlet and outlet sides. The oxidizing agent channels are in contact with the first electrode of an adjacent CAE-unit, and a least one bypass channel for the oxidant flow arranged such that the bypass channel is not in contact with the first electrode.

Abstract: A fuel cell stack includes bonding members for joining projecting sections of adjacent frames in cell modules, an inter-cell module seal member forming a seal between the cell modules, and supporting members disposed between adjacent frames in the cell modules. As viewed from above in the direction in which the cell modules are layered, the supporting members overlap at least a part of a section of the inter-cell module seal member that contacts the cell modules.

Abstract: The present invention has an object to provide a catalyst having excellent oxygen reduction reaction activity. The present invention relates to a catalyst comprising a catalyst support and a catalyst metal supported on the catalyst support, wherein a specific surface area of the catalyst per support weight is 715 m2/g support or more or a covering ratio of the catalyst metal with an electrolyte is less than 0.5, and an amount of an acidic group of the catalyst per support weight is 0.75 mmol/g support or less.

Abstract: Modified fluoropolymers, and methods for manufacturing modified fluoropolymers are provided. According to at least one embodiment, chemically modified fluoropolymers, via radical generation and subsequent reaction, produce fluoropolymers having fluorinated moieties and/or non-fluorinated moieties, disrupting highly coherent polar domains, wherein the non-fluorinated moieties include, for example, at least one of carbonyl, hydroxyl, alkoxy, alkyl, and/or aromatic chemical groups.

Abstract: The description relates to fuel cells and fuel cell systems. One example includes at least one multi cell membrane electrode assembly (MCMEA). Individual MCMEAs can include multiple serially interconnected sub-cells.

Abstract: This redox flow secondary battery has an electrolyte tank (6) containing: a positive electrode cell chamber (2) containing a positive electrode (1) comprising a carbon electrode; a negative electrode cell chamber (4) containing a negative electrode (3) comprising a carbon electrode; and an electrolyte membrane (5) as a barrier membrane that separates/isolates the positive electrode cell chamber (2) and the negative electrode cell chamber (4). The positive electrode cell chamber (2) contains a positive electrode electrolyte containing an active substance, the negative electrode cell chamber (4) contains a negative electrode electrolyte containing an active substance, and the redox flow secondary battery charges and discharges on the basis of the change in valency of the active substances in the electrolytes.

Abstract: A fuel cell is disclosed with a self-regulated oxygen supply used in conjunction with a self-pumping fuel supply (e.g., a self-pumping anode). The cathode side of the fuel cell includes a gas diffusion electrode interposed between the fuel chamber and the oxidant chamber (e.g., H2O2), the gas diffusion electrode having a catalyst layer formed thereon. An oxygen gas capturing substrate is disposed in the oxidant chamber and is spaced apart from the gas diffusion electrode. The gas capturing substrate has first and second sides containing a plurality of holes extending there between. The first side of the substrate faces the oxidant and the second side faces the gas diffusion electrode. The substrate contains a catalyst on the second side of the substrate or within an inner surface of the holes.

Abstract: Nitride stabilized metal nanoparticles and methods for their manufacture are disclosed. In one embodiment the metal nanoparticles have a continuous and nonporous noble metal shell with a nitride-stabilized non-noble metal core. The nitride-stabilized core provides a stabilizing effect under high oxidizing conditions suppressing the noble metal dissolution during potential cycling. The nitride stabilized nanoparticles may be fabricated by a process in which a core is coated with a shell layer that encapsulates the entire core. Introduction of nitrogen into the core by annealing produces metal nitride(s) that are less susceptible to dissolution during potential cycling under high oxidizing conditions.

Abstract: A reinforced catalyst layer assembly, suitably for use in a fuel cell, said reinforced catalyst layer assembly comprising: (i) a planar reinforcing component consisting of a porous material having pores extending through the thickness of the material in the z-direction, and (ii) a first catalyst component comprising a first catalyst material and a first ion-conducting material, characterised in that the first catalyst component is at least partially embedded within the planar reinforcing component, forming a first catalyst layer having a first surface and a second surface is disclosed.

Abstract: An active material layers for a fuel cell membrane electrode assembly includes metal oxide particles, a non-ionomer proton conductor and active catalyst particles supported on the metal oxide particles.

Abstract: A vehicle control device operates an electric generator by an internal combustion engine and can intermittently drive an electric motor. The vehicle control device includes an electric storage unit and a control unit. The electric storage unit supplies electric power to the electric motor and can be charged by regenerative electric power from the electric generator. The control unit stops the intermittent driving mode provided that the vehicle speed is equal to or smaller than a predetermined speed and a status amount corresponding to an electric storage state of the electric storage unit is equal to or smaller than a predetermined value.

Abstract: A polymer electrolyte membrane fuel cell is provided. The polymer electrolyte membrane fuel cell includes a phosphoric acid-doped polyimidazole electrolyte membrane and a complex catalyst. In the complex catalyst, an alloy or mixture of a metal and a chalcogen element is supported on a carbon carrier. The polymer electrolyte membrane fuel cell exhibits further improved long-term operation, power generation efficiency, and operational stability at high temperature. The complex catalyst can be produced by a simple method.

Abstract: A metal mask is used in applying a printing material to an object to be printed by the sliding of a squeegee across a first surface of the metal mask. The metal mask has a plurality of openings extending from the first surface to a second surface facing the object. The metal mask has a bridge section and a filling section. The bridge section is disposed between first and second openings, and is recessed from the second surface. The filling section is provided on the second surface-side of the bridge section for being filled with printing material. The filling section communicates with the respective ends of the first and second openings. When viewed from the second surface, the filling section has a width that is larger than a width of the openings in a direction that intersects with a direction extending between the first and second openings.

Abstract: A fuel cell separator obtained by: roughening the surface of a compact formed by molding a composition containing graphite powder, an epoxy resin, and a phenol resin; treating the compact with infrared laser irradiation; and then performing a hydrophilizing treatment, wherein a fuel cell separator is provided having the characteristics that (1) the initial static contact angle is no greater than 20°, and (2) after manufacture, the static contact angle after being stored in atmospheric air for 3000 hours is no greater than 30°. This fuel cell separator has high hydrophilicity, allowing water generated during the electrical generation of the fuel cell to be easily discharged, and the hydrophilicity is maintained over a long period of time.

Abstract: This electrode catalyst layer for fuel cells is provided with: an electrode catalyst that comprises a conductive carrier and platinum-containing metal particles supported on the surface of the conductive carrier; and an ionomer that covers the electrode catalyst. This electrode catalyst layer for fuel cells is characterized in that the average thickness of the ionomer is 2.4 nm or less. This electrode catalyst layer for fuel cells is capable of having a good balance between proton transport properties and transport properties for a gas such as an oxidant gas or a fuel gas even in cases where the amount of supported platinum is decreased. In addition, an electrode for fuel cells, a membrane electrode assembly for fuel cells, and a fuel cell, each having good current-voltage characteristics, can be obtained using the above-described electrode catalyst layer for fuel cells.

Abstract: A catalyst layer material, a method for fabricating the same, and a fuel cell are provided. The catalyst layer material utilized for the fuel cell includes a catalyst support and a catalyst distributed on the catalyst support. The catalyst support contains TixM1?xO2, wherein M is selected from the group consisting of a Group IB metal, a Group IIA metal, a Group IIB metal, a Group IIIA, a Group VB metal, a Group VIB metal, a Group VIIB metal and a Group VIIIB metal, and 0<X?0.9. By applying the non-carbonaceous catalyst support containing high conductivity metal elements to the fuel cell, stability and performance of the cell can be effectively enhanced.

Abstract: An object is to suppress interference with the flow of a reactive gas or an off-gas in a fuel cell. There is provided a fuel cell comprising a stacked body that includes at least a power generation body configured by stacking a plurality of unit cells; and an end plate that is placed on at least one end in a stacking direction of the stacked body. The stacked body includes a manifold that is formed to pass through at least the power generation body in the stacking direction and is configured to cause a reactive gas or an off-gas to flow through. The end plate comprises a through hole that is formed to communicate with the manifold; and a plate portion that is placed inside of the through hole at a position corresponding to an outer circumference of an opening of the manifold formed in an end face on the one end of the stacked body and is arranged away from the end face of the stacked body across a clearance.

Abstract: A membrane, suitable for use in a fuel cell comprises: (a) a central region comprising an ion-conducting polymeric material; (b) a border region which creates a frame around the central region and which consists of one or more non-ion-conducting materials wherein at least one of the one or more non-ion-conducting materials forms a layer; wherein the non-ion-conducting material of the border region overlaps the ion-conducting polymeric material of the central region by 0 to 10 mm in an overlap region.

Abstract: A noble metal-based electrocatalyst comprises a bimetallic particle comprising a noble metal and a non-noble metal and having a polyhedral shape. The bimetallic particle comprises a surface-segregated composition where an atomic ratio of the noble metal to the non-noble metal is higher in a surface region and in a core region than in a sub-surface region between the surface and core regions. A method of treating a noble metal-based electrocatalyst comprises annealing a bimetallic particle comprising a noble metal and a non-noble metal and having a polyhedral shape at a temperature in the range of from about 100° C. to about 1100° C.

Abstract: An electrode catalyst for a fuel cell, an electrode, a fuel cell, and a membrane electrode assembly (MEA), the electrode catalyst including a carbonaceous support, and a catalyst metal loaded on the carbonaceous support, wherein the carbonaceous support includes a functional group bound on a surface thereof, the functional group being represented by one of Formula 1 or Formula 2, below,

Abstract: An electrolyte membrane-electrode assembly comprises a polymer electrolyte membrane; a cathode catalyst layer and a cathode gas diffusion layer including a cathode micro porous layer and a cathode gas diffusion layer substrate, arranged in order on one side of the polymer electrolyte membrane, and an anode catalyst layer and an anode gas diffusion layer including an anode micro porous layer and an anode gas diffusion layer substrate, arranged in order on the other side of the polymer electrolyte membrane. A relative gas diffusion coefficient of the anode micro porous layer is smaller than a relative gas diffusion coefficient of the cathode micro porous layer by an amount equal to or greater than 0.05[?].

Abstract: A membrane electrode assembly includes an MEA structure unit and a resin frame member. The MEA structure unit includes a cathode, an anode, and a solid polymer electrolyte membrane interposed between the cathode and the anode. The resin frame member is formed around the MEA structure unit, and joined to the MEA structure unit. An adhesive layer is provided between an outer marginal portion of the solid polymer electrolyte membrane extending outward beyond an outer end of a second gas diffusion layer and an inner extension of the resin frame member. The adhesive layer includes an overlapped portion overlapped on an outer marginal end of the second gas diffusion layer.