Abstract: The invention relates to primary electrochemical cells, in addition to methods for manufacturing and discharging the same, having a jellyroll electrode assembly that includes a positive electrode with a coating comprising iron disulfide deposited on a current collector situated on the outermost circumference of the jellyroll, a lithium-based negative electrode and a polymeric separator. More particularly, the invention relates to a cell design which optimizes cell capacity and substantially eliminates premature voltage drop-off on intermittent service testing by eliminating the edge effect through, for example, deliberately relieving stack pressure and/or extending the distance lithium ions proximate to the terminal end of the positive electrode must travel to undergo an electrochemical reaction in that region.

Abstract: According to one embodiment, there is provided an electrode material. The electrode material includes an active material which includes a titanium oxide compound having a monoclinic titanium dioxide crystal structure. The electrode material further includes a compound which exists on the surface of the active material and has a trialkylsilyl group represented by the formula (I). wherein R1, R2 and R3, which may be the same or different, respectively represent an alkyl group having 1 to 10 carbon atoms.

Abstract: An all solid state battery having high output performance and a manufacturing method thereof are provided. The all solid state battery of the present invention comprises a negative electrode layer, a positive electrode layer, and a solid electrolyte layer having a lithium ion conductivity. At least one layer of the solid electrolyte, the positive electrode layer, and the negative electrode layer includes a lithium ion conductive crystal and AxByOz (A is one or more selected from the group consisting of Al, Ti, Li, Ge, and Si. B is one or more selected from the group consisting of P, N, and C, wherein 1?X?4, 1?Y?5, and 1?Z?7). The solid electrolyte material to which a preferable sintering additive is added in a predetermined ratio is densified by firing at relatively low temperature in the manufacturing process. The ion conductivity thereof is also high.

Abstract: Disclosed herein is a folding device to manufacture a stacked/folded type electrode assembly having unit cells sequentially stacked in a state in which a separation film is disposed between the respective unit cells, the folding device including a web supply unit to supply a web having plate-shaped unit cells arranged at the top of a separation film at predetermined intervals, a winding jig to rotate the unit cells while holding a first one of the unit cells of the web so that the unit cells are sequentially stacked in a state in which the separation film is disposed between the respective unit cells, and a Y-axis directional rotary shaft compensation unit to compensate for a position of a rotary shaft of the winding jig in a direction (Y-axis direction) perpendicular to an advancing direction of the web, wherein the Y-axis directional rotary shaft compensation unit periodically changes the position of the rotary shaft in the direction (Y axis) perpendicular to the advancing direction (X axis) of the web to m

Abstract: An object of the present invention is to provide a biaxially oriented film suitable as a reinforcing member for an electrolyte membrane of a polymer electrolyte fuel cell, the film having excellent hot water resistance in a high-temperature and high-humidity use environment and being capable of maintaining the reinforcing effect for a prolonged period of time. The invention resides in a biaxially oriented film for reinforcing an electrolyte membrane of a polymer electrolyte fuel cell, the film being characterized in that the film (i) contains syndiotactic polystyrene as a major component and (ii) has a Young's modulus in at least one of the machine direction and the transverse direction ranging from 4,500 to 8,000 MPa.

Abstract: An electric storage module includes: a cooling plate with a predetermined thickness between a front surface and a rear surface, with the front surface and the rear surface functioning as cooling surfaces by a coolant flowing in the cooling plate; a first battery row made up with a plurality of battery cells, to be cooled by the cooling plate, arrayed along a predetermined direction, with one end surfaces of the battery cells being coupled with the front surface of the cooling plate so as to achieve thermal conduction; and a second battery row made up with a plurality of battery cells, to be cooled by the cooling plate, arrayed along a predetermined direction, with one end surfaces of the battery cells being coupled with the rear surface of the cooling plate so as to achieve thermal conduction.

Abstract: A fuel cell system may have at least one sensor including a pair of electrodes disposed on a substrate. The sensor may be configured to produce an output signal having a magnitude that is proportional to a relative humidity in a vicinity of the sensor and, if liquid water is on the sensor, proportional to an amount of the liquid water on the sensor.

Abstract: Catalysts are provided which can catalyze both the oxygen reduction during the discharge of a secondary air battery and the oxygen production in the recharging of the battery and which are stable at a high potential in the recharging. The invention has been accomplished based on the finding that a catalyst including an oxycarbonitride of a specific transition metal selected from, for example, titanium, zirconium, hafnium, vanadium, niobium and tantalum can catalyze both the oxygen reduction during the discharge of a secondary air battery and the oxygen production in the recharging of the battery and is also stable at a high potential in the recharging.

Abstract: An on-board battery assembly includes a cell stack, a blowing member, and a control component. The cell stack includes a plurality of cell modules. The cell stack has one side face that extends generally along a width axis orthogonal to a longitudinal axis of the plurality of cell modules. The blowing member having a blow-out port that has a dimension generally equivalent to a dimension of the one side face. The blowing member includes a casing having a suction port and a flow channel. The flow channel has a width that becomes greater toward the blow-out port. The control component is provided in a space defined between the casing and a plane, which is perpendicular to the width axis, and which includes an end portion of the one side face.

Abstract: A fuel cell system includes: a secondary cell; a voltage converter provided between the secondary cell and a load; a fuel cell; an FC relay that turns on and off electrical connection between the fuel cell and the shared electrical path; an electrical leakage detector that detects electrical leakage in an electrical system; and a control portion that performs determination regarding electrical leakage. The control portion has: start means for starting the fuel cell by raising voltage of the fuel cell from a starting voltage to an operation voltage that is lower than an open-circuit voltage; and electrical leakage determination means for performing the determination regarding electrical leakage after a predetermined time elapses, when the FC relay is closed while a voltage difference between the voltage of the fuel cell and voltage supplied from the voltage converter to the load is greater than a predetermined threshold value.

Abstract: A method for distributing power includes identifying a value of a variable in a fuel cell system, where the fuel cell system is configured to provide electrical power to a load. Based at least in part on the identified value of the variable, it is determined that the variable has exceeded a threshold. A first portion of the electrical power is determined for use in correcting the variable, and the first portion of the electrical power is used to correct the variable.

Abstract: The present invention relates to a solid oxide fuel cell stack modular structure, in that, being an integration of a plurality of fuel cell modules, it can determine the amount of fuel cell modules to be stacked in the modular structure according to an actual power output demand while ensuring airtightness in the modular structure, and moreover, with the modularization design, each fuel cell module in the modular structure that is malfunctioning can be detached and removed easily from the stack individually so as to be replaced by another operative fuel cell module.

Abstract: A power source apparatus having an assembled battery including a plurality of batteries of cylindrical shape arranged in a diameter direction of the battery within a case includes a holding member which holds the plurality of batteries from the diameter direction and is in contact with the inner face of the case to divide the internal space of the case into a cooling path in which a coolant flows and a gas discharge path in which gas is discharged from the battery in a battery abnormality, wherein the holding member is a solid plate member conducting heat of the battery.

Abstract: The invention relates to an interconnector arrangement for a fuel cell stack, which can be brought into electrical contact with at least one membrane electrode assembly and which is arranged to separate a cathode flow field of the fuel cell stack from an anode flow field of the fuel cell stack. The invention is characterized in that the interconnector arrangement comprises a hollow space separated from the anode flow field and from the cathode flow field such that a flow of gas through the hollow space may not be more than five percent of flow-off gas through the cathode flow field or the anode flow field. The invention also relates to a fuel cell stack and to a method for manufacturing an interconnector arrangement.

Abstract: A device includes a first electrode compartment, the anode compartment, and a second electrode compartment, the cathode compartment, with a quantity of an anode fluid including an electrochemically oxidizable substrate and optional further compounds in the anode compartment, a quantity of a cathode fluid including an electrochemically reducible substrate and optional further compounds in the cathode compartment, and further an anode at least partially in contact with the anode fluid in the anode compartment and a cathode at least partially in contact with the cathode fluid in the cathode compartment.

Abstract: The present invention is concerned with improved fuel cell stack assemblies, and methods of operation of a fuel cell stack assembly, particularly with improved gas flow and thermal management.

Abstract: A method is provided for manufacturing an electrode that has a porous inorganic layer on the surface of an active material layer and is suitable for constructing a nonaqueous secondary battery with excellent input-output performance. In this manufacturing method, an electrode perform, which has an active material layer (344) consisting primarily of active material particles (42) and supported on a collector (342), is prepared. The water concentration of at least the surface (344a) of the active material layer (344) is adjusted to 100 ppm to 500 ppm. A slurry (S) containing inorganic particles (44), a binder and an organic solvent is coated on the surface (344a) of the active material layer with the water concentration thus adjusted, to form a porous inorganic layer.

Abstract: A membrane electrode assembly includes a proton exchange membrane, an anode and a cathode. The proton exchange membrane has two opposite surfaces, a first surface and a second surface. The anode is located adjacent to the first surface of the proton exchange membrane, and the cathode is located adjacent to the second surface of the proton exchange membrane. The anode includes a carbon nanotube structure. The carbon nanotube structure has a plurality of carbon nanotubes and a catalyst material dispersed on the carbon nanotubes. A biofuel cell using the membrane electrode assembly is also provided.

Abstract: A membrane electrode assembly includes a proton exchange membrane, an anode and a cathode. The proton exchange membrane has two opposite surfaces, a first surface and a second surface. The anode is located adjacent to the first surface of the proton exchange membrane, and the cathode is located adjacent to the second surface of the proton exchange membrane. The anode includes a diffusion layer and a catalyst layers. The diffusion layer includes a carbon nanotube structure. A biofuel cell using the membrane electrode assembly is also provided.

Abstract: Provided is fuel cell system capable of eliminating any failure caused by freezing of a discharge valve during a low temperature while preventing an increase in size of the system. A fuel cell system is provided, the system including: a fuel cell; a diluter that dilutes a fuel-off gas discharged from the fuel cell with an oxidant-off gas discharged from the fuel cell to discharge the resulting gas to the outside; a fuel-off gas flow path that connects the fuel cell and the diluter; and a discharge valve that is provided to the fuel-off gas flow path to discharge a fuel-off gas flowing through the fuel-off gas flow path to the outside during a valve opening operation. In the fuel cell system, the discharge valve is integrally attached to the diluter.