Abstract: The present invention provides a method of producing a solid oxide fuel cell, comprising the steps of: forming an anode support layer; applying an anode layer on the anode support layer; applying an electrolyte layer on the anode layer; and sintering the obtained structure; wherein the anode support layer and/or the anode layer comprises a composition comprising doped zirconia, doped ceria and/or a metal oxide with an oxygen ion or proton conductivity, NiO and at least one oxide selected from the group consisting of Al2O3, TiO2, Cr2O3, Sc2O3, VOx, TaOx, MnOx, NbOx, CaO, Bi2O3, LnOx, MgCr2O4, MgTiO3, CaAl2O4, LaAlO3, YbCrO3, ErCrO4, NiTiO3, NiCr2O4, and mixtures thereof. According to the invention, a combination of nickel coarsening prevention due to specific Ni-particle growth inhibitors, and, at the same time, a strengthening of the ceramic structure of the anode support layer and/or the anode layer is achieved.

Abstract: An electrochemical device having an electrode matrix including a multilayer structure laminating positive and negative electrodes with a separator interposed therebetween; wherein at least one of the positive and negative electrodes has a resistance control layer at least at an edge part exposed when the separator thermally shrinks on a surface on the separator side; and wherein the resistance control layer has a resistance value as a total resistance value of the electrode matrix falling in such a range that an estimated internal short circuit current between the positive and negative electrodes is equivalent to 0.09 C to 1 C.

Abstract: A fuel cell system includes: a fuel cell that generates an electric power and heat by a reaction of a reaction gas; a heat exchanger; a coolant circuit for a coolant between the fuel cell and the heat exchanger; a coolant circulating pump for circulating the coolant in the coolant circuit; and a drive motor for driving the coolant circulating pump, the coolant receiving and carrying the heat to the heat exchanger by the coolant circuit, the coolant circulating pump, and the drive motor. A rotational speed of the drive motor is controlled according to an upper limit of the rotational speed of the drive motor which may be determined on the basis of a cooling capacity of the heat exchanger, a speed of the vehicle mounting the fuel cell system, a generated electric power, and a flow rate of the reaction gas.

Abstract: A board assembly for a rechargeable battery includes a cover case including a cover plate, and side walls disposed on a circumference of the cover plate and including respective openings that are offset from each other; and a circuit board mounted between the side walls of the cover case.

Abstract: The invention relates to a method for operating a direct oxidation fuel cell in which the fuel cell is supplied generally with methanol via a transport device for the fuel. The invention likewise relates to a corresponding arrangement comprising a direct oxidation fuel cell, a fuel reservoir and at least one device for transporting the fuel through the fuel cell.

Abstract: An interconnector is made of ferritic chromium steel, on which a cupriferous layer is disposed. This layer prevents interdiffusion between the chromium steel and additional components with which the interconnector has direct contact. According to the state of the art, such diffusion occurs particularly if these additional components contain nickel. In addition, the interconnector may comprise a chromium-containing oxide layer as a barrier against interdiffusion. For this purpose, the interconnector steel can also be preoxidized before applying the cupriferous layer. The interconnector has a significantly longer service life than interconnectors according to the state of the art, and it has improved electrical conductivity because the electrical contact surface thereof is free of oxides and has high transverse conductivity.

Abstract: A hybrid lead acid electric storage battery uses conventional lead-acid secondary battery chemistry. The battery is a sealed battery or an unsealed battery. The battery has a set of positive battery grids (plates) having cores of thin titanium expanded metal with a thickness, if flattened, preferably in the range 0.2 mm to 0.7 mm and most preferably 0.3 mm to 0.4 mm. The grid cores are of a titanium alloy containing a platinum group metal. The cores are coated with hot dip lead and are not lead electroplated. The negative plates are carbon based assemblies. Each such assembly has a metal core, preferably a sheet of expanded copper, a corrosion shield sealing the metal core, and an outer layer primarily of activated carbon covering the shield.

Abstract: A storage battery is provided comprising a positive electrode of lead, a negative electrode of palladium, and an electrolyte consisting of an aqueous solution of at least one sulfate salt. Upon charging, lead is converted to lead dioxide and atomic hydrogen is absorbed by the palladium. During discharge, lead dioxide is reduced to the plumbous state and hydrogen is oxidized to hydrogen ions.

Abstract: A separator having at least: a base material layer made of a microporous membrane of a polyolefin resin; and a functional resin layer which is made of a resin different from the polyolefin resin and has a porous interconnected structure in which many holes are mutually interconnected. A diameter of a narrowest portion of through-holes of said functional resin layer is larger than a diameter of a narrowest portion of through-holes of said base material layer.

Abstract: A fuel cell stack including an electricity generating unit for generating electrical energy by electrochemically reacting a fuel and an oxidizing agent, the electricity generating unit including: a first separator; a second separator; a membrane electrode assembly (MEA) between the first separator and the second separator, each of the first and second separators including a channel on a surface facing the MEA and a manifold in the surface facing the MEA, the manifold communicating with the channel; and a gasket, positioned at an outer circumference portion of an area where the MEA is positioned, for sealing a space between the first and second separators and for covering an open area of a channel extension area of at least one of the first and second separators where the manifold communicates with the channel.

Abstract: A fuel cell (100) has an electrical generation section (24) including an anode, an electrolyte, and a cathode; a porous-body flow passage (50, 60) disposed on at least one side of the anode side of the electrical generation section and the cathode side thereof; and a separator (10) disposed on the opposite side of the porous-body flow passage from the electrical generation section; wherein the porous-body flow passage includes a high porosity location (51, 61) having a higher porosity than an average porosity thereof and a low porosity location having a lower porosity than the average porosity thereof, wherein the high porosity location communicates with a gas discharging-side manifold (41b, 42b) via the low porosity location.

Abstract: Fuel cell devices and fuel cell systems, methods of using same, and methods of making same are provided. In certain embodiments, the fuel cell devices may include one or more active layers containing active cells that are connected electrically in parallel and/or series. In certain embodiments, the fuel cell devices include an elongate ceramic support structure the length of which is the greatest dimension such that the coefficient of thermal expansion has only one dominant axis coextensive with the length. In certain embodiments, a reaction zone is positioned along a first portion of the length for heating to a reaction temperature, and at least one cold zone is positioned along a second portion of the length for operating below the reaction temperature. There are one or more gas passages, each having an associated anode or cathode. In some embodiments, ceramic end tubes are permanently attached to the ceramic support structure to supply gases to the passages.

Abstract: The present invention relates to a negative active material for a lithium ion battery and a lithium ion battery including the negative active material. The negative active material for a lithium ion battery includes a hexagonal lithium vanadium composite oxide including lithium, vanadium, and magnesium. The lithium and the vanadium are included in a mole ratio within a range of 1.15?Li/V?1.35, and the magnesium and the vanadium are included in a mole ratio within a range of 0.01?Mg/V?0.06. The present invention provides a negative active material for a lithium ion battery having a stable crystal structure, excellent high rate of charge and discharge, and good charge and discharge cycle characteristics.

Abstract: A secondary battery includes collector electrodes, a contact area of the collector electrode in contact with a cathode or a anode, a terminal portion formed in the collector electrode and not in contact with the cathode or anode, and a connecting portion to which a conductive member is connected. As compared with cross-sectional area of the terminal portion forming a first current path between the connecting portion and a first portion of the contact area closest to the connecting portion in the contact area, cross-sectional area of a terminal portion forming a second current path between the connecting portion and a second portion positioned in a region of the periphery of the contact area and extending along the terminal portion, of which length to the connection portion is longer than path length of said current path, is made larger.

Abstract: A fuel cell, having improved sealing against leakage, includes a sealant disposed over the peripheral portions a membrane electrode assembly such that the cured sealant penetrates a gas diffusion layer of the membrane electrode assembly. The sealant is applied through liquid injection molding techniques to form cured sealant composition at the peripheral potions of the membrane electrode assembly. The sealant may be thermally cured at low temperatures, for example 130° C. or less, or may be cured at room temperature through the application of actinic radiation.

Abstract: A fuel cell, having improved sealing against leakage, includes a fuel cell component having a cured sealant, wherein the cured sealant includes a telechelic-functional polyisobutylene, an organhydrogenosilane crosslinker, a platinum catalyst and a photoinitiator. The fuel cell component may be a cathode flow field plate, an anode flow field plate, a resin frame, a gas diffusion layer, an anode catalyst layer, a cathode catalyst layer, a membrane electrolyte, a membrane-electrode-assembly frame, and combinations thereof.

Abstract: A benzoxazine-based monomer includes a halogen atom-containing functional group and a nitrogen-containing heterocyclic group. A polymer formed from the benzoxazine-based monomer may be used in an electrode for a fuel cell and electrolyte membrane for a fuel cell.

Abstract: An electrochemical energy store, including at least one electrochemical cell as well as at least one latent heat storage unit, which includes at least one phase change material. The at least one electrochemical cell is a lithium ion accumulator. The exemplary embodiments and/or exemplary methods of the present invention also includes the use of the electrochemical energy store in an electric vehicle or a hybrid vehicle. Furthermore, the exemplary embodiments and/or exemplary methods of the present invention relates to a method for temperature regulation of an electrochemical energy store.

Abstract: An alkaline dry battery of this invention includes: a cylindrical battery case with a bottom; a cylindrical positive electrode having a hollow, being in contact with an inner face of the battery case, and containing a manganese dioxide powder and a graphite powder; a negative electrode disposed in the hollow of the positive electrode; a separator interposed between the positive electrode and the negative electrode; and an alkaline electrolyte. The positive electrode has cracks therein, and the cracks are substantially arc-shaped in a cross-section perpendicular to the axial direction of the positive electrode and extend in the axial direction of the positive electrode. The positive electrode has a manganese dioxide density of 2.15 to 2.30 g/cm3.

Abstract: Water passageways (67; 78, 85; 78a, 85a) that provide water through reactant gas flow field plates (74, 81) to cool the fuel cells (38) may be grooves (76, 77; 83, 84) or may comprise a plane of porous hydrophilic material (78a, 85a), may be vented to atmosphere (99) by a porous plug (69), or pumped (89, 146) with or without removing any water from the passageways. A condenser (59, 124) receives exhaust of reactant air that evaporatively cools the stack (37), and may have a contiguous reservoir (64, 128), be vertical (a vehicle radiator, FIG. 2), be horizontal across the top of the stack (37, FIG. 5), or below (124) the stack (120). Condenser air flow may be controlled by shutters (155), or by a controlled, freeze-proof heat exchanger (59a). A deionizer (175) may be used. Sensible heat transferred into the water is removed by a heat exchanger 182; a controller (185) controls water flow (180) and temperature as well as air flow to provide predetermined allocation of cooling between evaporative and sensible.