Abstract: A water electrolysis cell includes an anode-side porous channel, a membrane electrode assembly, a cathode-side porous channel, and a separator disposed on at least any one of a side of the anode-side porous channel opposite to the membrane electrode assembly side and a side of the cathode-side porous channel opposite to the membrane electrode assembly side. The anode-side porous channel, the membrane electrode assembly, and the cathode-side porous channel are provided in this order. The membrane electrode assembly includes an anode catalyst layer, an electrolyte membrane, and a cathode catalyst layer in order from the anode-side porous channel side. An area in a plane direction of the anode-side porous channel is greater than an area in the plane direction of the cathode-side porous channel in a plan view.

Abstract: A water electrolysis cell includes an anode disposed on one side across a solid polymer electrolyte membrane and a cathode disposed on another side. The anode is configured of an anode catalyst layer, an anode gas diffusion layer, and an anode separator, laminated in that order from a side of the solid polymer electrolyte membrane, a channel is provided in the anode separator, and the channel extends in a wave shape.

Abstract: A water electrolysis cell includes an anode disposed on one side across a solid polymer electrolyte membrane and a cathode disposed on the other side. The anode is configured of an anode catalyst layer, an anode gas diffusion layer, and an anode separator, laminated in that order from a side of the solid polymer electrolyte membrane. The cathode is configured of a cathode catalyst layer, a cathode gas diffusion layer, and a cathode separator, laminated in that order from the side of the solid polymer electrolyte membrane. A first channel is provided in the anode separator, and a wall face of the first channel in the anode separator is imparted with water repellency. A second channel is provided in the cathode separator, and a wall face of the second channel in the cathode separator is imparted with hydrophilicity.

Abstract: The anode-side separator of the present disclosure is an anode-side separator used in a water electrolyzer, and includes a metal substrate made of titanium or stainless steel, and a conductive oxide film containing indium-tin-oxide (ITO) provided on the surface of the metal substrate.

Abstract: To enhance water electrolysis efficiency by supporting a catalyst on an oxide carrier at a high density. A catalyst layer includes a carrier and a catalyst. The carrier is a nanosheet made of an oxide containing at least one element selected from Ti, Mn, Co, Mo, Ru, W, Nb, and Ta. The catalyst is supported on the carrier.

Abstract: Provided is a water electrolysis cell capable of suppressing a deterioration in performance even when a microporous layer is provided. A water electrolysis cell includes a solid polymer electrolyte membrane, a catalyst layer, a microporous layer, and a gas diffusion layer. The microporous layer includes a carrier made of an oxide containing at least one element selected from Ti, Mn, Co, Mo, Ru, W, Nb, and Ta, and a conductive material supported on the carrier.

Abstract: A manufacturing method for a catalyst layer for a fuel cell includes: preparing a nozzle group to output ultrasonically-vibrated air, the nozzle group being formed of an aggregate of unit nozzles each controlled in at least one of the temperature of the ultrasonically-vibrated air to be output from the unit nozzle, an internal pressure in the unit nozzle, and the position of the unit nozzle in an output direction in which the ultrasonically-vibrated air is to be output; coating a sheet-like base material with catalyst ink containing a solvent, an ionomer, and a catalyst supporting material on which a catalyst is supported; and drying the catalyst ink by blowing the ultrasonically-vibrated air from the nozzle group on the catalyst ink applied to the base material. The drying includes controlling at least one of the temperature, the internal pressure, and the position for each of the unit nozzles independently.

Abstract: A manufacturing method for a catalyst layer for a fuel cell includes: preparing a nozzle group to output ultrasonically-vibrated air, the nozzle group being formed of an aggregate of unit nozzles each controlled in at least one of the temperature of the ultrasonically-vibrated air to be output from the unit nozzle, an internal pressure in the unit nozzle, and the position of the unit nozzle in an output direction in which the ultrasonically-vibrated air is to be output; coating a sheet-like base material with catalyst ink containing a solvent, an ionomer, and a catalyst supporting material on which a catalyst is supported; and drying the catalyst ink by blowing the ultrasonically-vibrated air from the nozzle group on the catalyst ink applied to the base material. The drying includes controlling at least one of the temperature, the internal pressure, and the position for each of the unit nozzles independently.

Abstract: A method of manufacturing a fuel cell catalyst layer includes: coating a top surface of a sheet with a catalyst ink, wherein the catalyst ink includes an ionomer; and drying the catalyst ink on the sheet being conveyed along a conveying direction by spraying a center of an ultrasonic airflow toward a direction opposite to the conveying direction, wherein the ultrasonic airflow is obtained by applying ultrasonic waves to an airflow.

Abstract: A current interrupt mechanism includes a partition wall defining a second space that is independent from a first space, and the partition wall includes a current path portion serving as a current path of a sealed battery. The current interrupt mechanism interrupts the current path in response to an internal pressure of the second space that is higher than a predetermined pressure. One conductive path passes through the current path of the current interrupt mechanism, and is in contact with the second electrolyte solution enclosed in the second space. Another conductive path includes a potential application line that is wired to the second electrolyte solution enclosed in the second space.

Abstract: A current interrupt mechanism includes a partition wall defining a second space that is independent from a first space, and the partition wall includes a current path portion serving as a current path of a sealed battery. The current interrupt mechanism interrupts the current path in response to an internal pressure of the second space that is higher than a predetermined pressure. One conductive path passes through the current path of the current interrupt mechanism, and is in contact with the second electrolyte solution enclosed in the second space. Another conductive path includes a potential application line that is wired to the second electrolyte solution enclosed in the second space.

Abstract: Disclosed is a stator capable of reducing stress generated in the resin mold of the stator. A stator is provided with a coil formed by coiling a flat conductor, a split stator core provided with a teeth unit for inserting the coil, and a resin mold, which has resin covering the coil ends of the coil inserted into the split stator core. In the stator, an insulator is formed between the split stator core and the coil by way of insert molding, and the resin mold has a cavity, formed in the radial direction of the stator, in between the coil and the end face of the split stator core.

Abstract: A stator structure and a stator manufacturing method which are configured so that the stress occurring in resin-molded sections or insulators of the stator can be reduced. The structure of the stator is provided with coils formed by winding conductors, and also with stator cores provided with teeth to which the coils are mounted through the insulators. The coils mounted to the insulators are resin-molded and integrated with the insulators. Spaces which continue in the radial direction of the stator cores are formed between the insulators and end surface of the stator cores in the axial direction thereof. The insulators and the side surfaces of the teeth of the stator cores are adhered or welded (fusion bonded) to each other.

Abstract: A first process in which a fiber reinforced base is placed in a cavity of a molding die and then resin is injected into the cavity of the molding die in a state where the molding die is opened by a sum of a distance X1 and a distance at the time of completion of molding; a second process in which the molding die is closed to a state where the molding die is opened by a sum of a distance X2 and the distance at the time of completion of molding while resin in the cavity is being drained; and a third process in which the drain of the resin from the cavity is stopped and then the molding die is closed to the distance at the time of completion of molding while a die clamping pressure is maintained at a predetermined value to cure the resin, are carried out sequentially.

Abstract: In a stator manufacturing method to manufacture a stator in which divided-core assemblies are arranged in a cylindrical shape, each of which includes a divided-core member having a teeth portion on which a coil is wound. In this method, the divided-core assemblies are inserted in the cylindrical shape into a fixed mold, resin sheets containing glass fibers or carbon fibers are disposed on coil-end portions of the cylindrically-arranged divided-core assemblies, and a slide part of a movable mold applies pressure to and molds the resin sheets, thereby combining the divided core assemblies into a single unit. The movable mold is operated to position the divided-core assemblies in place by a cylindrical part and then apply pressure to and mold the resin sheets by the slide part.

Abstract: A resin composition includes 0.1 to 40% by mass of a carbon-based nanofiller, 5 to 90% by mass of a resin, and 5 to 90% by mass of calcium fluoride.

Abstract: Disclosed are a split stator and a manufacturing method thereof with which insulation reliability can be improved by preventing deformation or cracking of the insulator by eliminating slippage of the insulator at the coil end face. A slip prevention mechanism that prevents slippage of the insulator is provided at the coil end face, and using insert molding, the insulator is integrally molded to a split stator core provided with the slip prevention mechanism.

Abstract: A resin composition includes 0.1 to 40% by mass of a carbon-based nanofiller, 5 to 90% by mass of a resin, and 5 to 90% by mass of calcium fluoride.

Abstract: In a stator manufacturing method to manufacture a stator in which divided-core assemblies are arranged in a cylindrical shape, each of which includes a divided-core member having a teeth portion on which a coil is wound. In this method, the divided-core assemblies are inserted in the cylindrical shape into a fixed mold, resin sheets containing glass fibers or carbon fibers are disposed on coil-end portions of the cylindrically-arranged divided-core assemblies, and a slide part of a movable mold applies pressure to and molds the resin sheets, thereby combining the divided core assemblies into a single unit. The movable mold is operated to position the divided-core assemblies in place by a cylindrical part and then apply pressure to and mold the resin sheets by the slide part.

Abstract: A stator structure and a stator manufacturing method which are configured so that the stress occurring in resin-molded sections or insulators of the stator can be reduced. The structure of the stator is provided with coils formed by winding conductors, and also with stator cores provided with teeth to which the coils are mounted through the insulators. The coils mounted to the insulators are resin-molded and integrated with the insulators. Spaces which continue in the radial direction of the stator cores are formed between the insulators and end surface of the stator cores in the axial direction thereof. The insulators and the side surfaces of the teeth of the stator cores are adhered or welded (fusion bonded) to each other.