摘要:
The present invention relates to an electrolytic solution excellent in stability, and also relates to a battery excellent in battery performance and having an outer structure having light weight. The electrolytic solution contains a supporting electrolyte and a gas formation inhibitor in the solvent. The gas formation inhibitor contains a decomposition product of the supporting electrolyte with formation of a gas in the solvent. It functions as controlling to solution equilibrium in the electrolytic solution participating in decomposition reaction of the supporting electrolyte. A battery is obtained by filling the electrolytic solution between a positive electrode and a negative electrode.
摘要:
A fuel cell includes an electrolyte membrane, an anode on one surface of the electrolyte membrane and having an anode catalyst layer that is supplied with fuel and contains a platinum-ruthenium alloy catalyst, and a cathode on the other surface of the electrolyte membrane and having an cathode catalyst layer that is supplied with air and contains a platinum catalyst. The anode catalyst layer and the cathode catalyst layer include divided catalyst segments, and gaps between the divided catalyst segments that are adjacent to each other.
摘要:
Conventional separators had a function that their melting made minute holes inside the separator smaller, leading to cut off of ion conductivity in temperature increase due to unusual conditions such as short circuit. However, there was a problem that, at a temperature higher than a certain degree, not only the minute holes were closed but also the separator itself was melted to cause deformation of the separator such as shrink and generation of holes due to melting and insulation was broken. The present invention has been carried out in order to solve the above problems. The separator for batteries of the present invention comprises a first porous layer (3a) containing a thermoplastic resin as a main component and a second porous layer (3b) laminated on the first porous layer (3a), which has higher heat resistance than that of the first porous layer (3a).
摘要:
A switch comprising a switch case, contacts adapted to be opened and closed, an arc extinguishing chamber disposed in the vicinity of the contacts, and an arc extinguishing material capable of reducing the amount of metal particles and free carbons to be scattered from components disposed within the switch by an arc generated when the contacts are opened or closed or capable of insulating the metal particles and the free carbons to convert into an insulator, thereby inhibiting a decrease in arc resistance expected to occur upon the generation and extinction of the arc and a decrease in insulation resistance expected to occur within and around the arc extinguishing chamber and at inner wall surfaces of the switch case upon and after the extinction of the arc. The switch according to the present invention is applicable to a switch expected to generate an arc upon interruption of electric current flowing therethrough such as a circuit breaker, current-limiting device or electromagnetic contactor and is capable of immediately extinguishing the arc and inhibiting the decrease in insulation resistance within and around the arc extinguishing chamber and at inner wall surfaces of the switch case.
摘要:
A fuel cell that prevents gas slippage, with minimal reduction in effective area for electrode reaction. At least one of a fuel gas flow path and an oxidizing gas flow path is configured with flow channels having bends and so that gas flows between ends of the flow channels, and, among ridges between a neighboring upstream-side portion of a flow channel and a downstream-side portion of the flow channel, a gas diffusion layer touching at least a ridge between an upstream region of the flow channel on the upstream side and a downstream region of the flow channel on the downstream side, has a lower porosity than the gas diffusion layer touching other ridges and touching the flow channels.
摘要:
A fuel cell includes a membrane electrode composite body in which a cathode catalyst layer and an anode catalyst layer are joined to central portions of two surfaces of a solid polymer electrolyte membrane and further held from two sides between a fuel electrode substrate having a surface area that is larger than that of the cathode catalyst layer and an oxidizer electrode substrate having a surface area that is larger than that of the anode catalyst layer, wherein: pores of a fuel-sealing support portion surrounding the cathode catalyst layer in the fuel electrode substrate are partially or wholly filled with a resin; pores of an oxidizer-sealing support portion surrounding the anode catalyst layer in the oxidizer electrode substrate are partially or wholly filled with the resin; and the fuel-sealing support portion and the oxidizer-sealing support portion are bonded to the solid polymer electrolyte membrane by the resin.
摘要:
A switch containing a switch case, contacts adapted to be opened and closed, an arc extinguishing chamber disposed in the vicinity of the contacts, and an arc extinguishing material capable of reducing the amount of metal particles and free carbons to be scattered from components disposed within the switch by an arc generated when the contacts are opened or closed or capable of insulating the metal particles and the free carbons to convert into an insulator, thereby inhibiting a decrease in arc resistance expected to occur upon the generation and extinction of the arc and a decrease in insulation resistance expected to occur within and around the arc extinguishing chamber and at inner wall surfaces of the switch case upon and after the extinction of the arc. The switch is applicable to a switch expected to generate an arc upon interruption of electric current flowing therethrough such as a circuit breaker, current-limiting device or electromagnetic contactor and is capable of immediately extinguishing the arc and inhibiting the decrease in insulation resistance within and around the arc extinguishing chamber and at inner wall surfaces of the switch case.
摘要:
A fuel cell includes a solid polymer electrolyte membrane and cathode and anode catalyst layers held between a fuel electrode substrate having a surface area larger than that of the cathode catalyst layer and an oxidizer electrode substrate having a surface area larger than that of the anode catalyst layer. The fuel electrode substrate includes a fuel-sealing support portion surrounding the cathode catalyst layer. The oxidizer electrode substrate includes an oxidizer-sealing support portion surrounding the anode catalyst layer. The fuel-sealing and oxidizer-sealing support portions each include pores partially or wholly filled with a resin. The fuel-sealing support portion is bonded to the membrane by the resin at a position closer to an outer edge of the membrane than is the cathode catalyst. The oxidizer-sealing support portion is bonded to the membrane by the resin at a position closer to the outer edge of the membrane than is the anode catalyst.
摘要:
A fuel cell in which gas short-cutting is prevented without reducing effective area for electrode reaction. At least one of a fuel gas flow path and an oxidizing gas flow path includes flow grooves having bends and fluid flowing between ends of the flow grooves. The effective reaction area of the flow grooves on a separator plate is rectangular, having a first side in the direction along which the bends are aligned longer than a second side in the direction along their main extents, located upstream and downstream of the bends, where the fluid flows in opposing directions.