Abstract: To provide a coating liquid for release layer with which a release layer having a small variation in the performance difference can be stably formed, to provide a method for producing a thermal transfer sheet using this coating liquid for release layer, and to provide a thermal transfer sheet having stable releasability. A thermal transfer sheet having a substrate, a release layer provided on the substrate, and a transfer layer provided on the release layer, wherein the transfer layer is provided peelably from the release layer, and the release layer contains a silsesquioxane.

Abstract: A sealer for use in an all-solid-state secondary battery provided with a sulfur-containing solid electrolyte, characterized in that the sealer contains a resin and a particulate fatty acid metal salt dispersed in the resin, and the particulate fatty acid metal salt is a particulate fatty acid metal salt in which a fatty acid is coordinated on the surfaces of the metal particles having a mean particle diameter of not more than 1000 nm. The all-solid-state secondary battery is capable of suppressing the generation of the hydrogen sulfide.

Abstract: In, for example, a direct methanol type fuelcell, fuel is allowed to be injected little by little when the fuel is injected and supplied from the outside to a fuel receiving part reduced in the amount of remaining fuel on the fuelcell body side and an electromotive part can be prevented from being damaged by keeping the pressure in the fuel receiving part at a fixed level or less when the fuel is injected. Specifically, when a fuel CL filled in a refuelling container C is injected into a fuel receiving part T in several lots, a fuel injecting operation is repeated in which the volume of the refuelling container C is shrunk and reduced to supply the fuel into the fuel receiving part T in a proper amount and then the original volume of the refuelling container is restored to thereby absorb the atmospheric gas in the fuel receiving part T, which makes it possible to inject fuel continuously without any hindrance to the injection of the fuel.

Abstract: Disclosed is a fuel for fuel cells which contains at least one organic compound selected from the group consisting of methanol, ethanol, dimethyl ether and formic acid, and 1-200 ppm of a hydrocarbon compound in terms of a single component as determined by gas chromatography mass spectrometry. Also disclosed are a fuel cartridge for fuel cells and a fuel cell.

Abstract: A stainless steel material for a fuel cell, used for a fuel cell or a cartridge for the fuel cell, having a magnetic permeability of 1.000 to 2.500, and forming a layer having a value of chromium atomic %/iron atomic % of not less than 3.0 in the most surface thereof, and/or the layer of thickness of not less than 12 nm calculated as SiO2 having an oxygen atomic % of not less than 20%. Even when brought into contact with the content solution exhibiting acidity of the fuel cell, the stainless steel material reliably suppresses the elution of metal ions thereof.

Abstract: In, for example, a direct methanol type fuelcell, fuel is allowed to be injected little by little when the fuel is injected and supplied from the outside to a fuel receiving part reduced in the amount of remaining fuel on the fuelcell body side and an electromotive part can be prevented from being damaged by keeping the pressure in the fuel receiving part at a fixed level or less when the fuel is injected. Specifically, when a fuel CL filled in a refuelling container C is injected into a fuel receiving part T in several lots, a fuel injecting operation is repeated in which the volume of the refuelling container C is shrunk and reduced to supply the fuel into the fuel receiving part T in a proper amount and then the original volume of the refuelling container is restored to thereby absorb the atmospheric gas in the fuel receiving part T, which makes it possible to inject fuel continuously without any hindrance to the injection of the fuel.

Abstract: A coil spring for fuel cells, used for a fuel cell or a cartridge for the fuel cell, comprising an austenite type stainless steel without any nickel layer formed on the surface thereof, and having a cationic index I of not more than 60 as expressed by the following formula (1), I=A+2B+3C??(1) wherein A, B and C represent, respectively, a concentration (ppb) of monovalent metal ions, a concentration (ppb) of metal ions which are neither monovalent nor trivalent, and a concentration (ppb) of trivalent metal ions per the coil spring in a methanol solution of when the coil spring is dipped in the methanol solution (containing 1% of water+4000 ppm of formic acid) and preserved therein at 60° C. for one week. Even when brought into contact with the content solution exhibiting acidity of the fuel cell, the coil spring reliably suppresses the elution of metal ions thereof.

Abstract: A fuel cartridge 5 for a fuel cell includes a cartridge body 8 containing liquid fuel for the fuel cell, and a nozzle part 9 supplying the liquid fuel to a fuel cell body. The nozzle part 9 has a nozzle head 12 provided on the cartridge body 8 and an insertion portion 14 which is inserted in a socket part 6 of the fuel cell body, and a valve mechanism (19, 20, 21, 22) arranged in the nozzle head 12. A recess portion 15 is provided in a tip of the insertion portion 14 of the nozzle head 12. Liquid fuel remaining on the tip of the nozzle part 9 is accommodated in the recess portion 15.

Abstract: A stainless steel material for a fuel cell, used for a fuel cell or a cartridge for the fuel cell, having a magnetic permeability of 1.000 to 2.500, and forming a layer having a value of chromium atomic %/iron atomic % of not less than 3.0 in the most surface thereof, and/or the layer of thickness of not less than 12 nm calculated as SiO2 having an oxygen atomic % of not less than 20%. Even when brought into contact with the content solution exhibiting acidity of the fuel cell, the stainless steel material reliably suppresses the elution of metal ions thereof.

Abstract: The present invention is to provide an oxygen barrier cap with pull ring that maintains the opening easiness by tearing off with a pull ring, and the high productivity of one-piece molding by injection molding, and enhances significantly the gas barrier property, particularly oxygen barrier property. Further, in order to prevent conventional contamination of stored content caused by metal dust generated by tearing off the metal foil, or use of gas barrier resin molding material, the oxygen barrier cap with pull ring is molded from thermoplastic resin, and fixed to an opening of a container, and an oxygen barrier agent is coated on a score surface of a cap with pull ring, to form a coating film with oxygen barrier property.

Abstract: This invention provides an elastic member for a methanol fuel cell cartridge, comprising an elastomer having a compression set of 1 to 80 and a hardness (type A) of 40 to 70 and having an operating limit time of 10,000 hours or more determined by a DMFC performance test for the fuel cell. The elastic member can prevent leakage of methanol from a methanol fuel cell cartridge, or a connection part between the cartridge and a fuel cell body and, at the same time, can realize long-term operation of the fuel cell without causing deterioration of power generation performance.

Abstract: Disclosed is a fuel for fuel cells which contains at least one organic compound selected from the group consisting of methanol, ethanol, dimethyl ether and formic acid, and 1-200 ppm of a hydrocarbon compound in terms of a single component as determined by gas chromatography mass spectrometry. Also disclosed are a fuel cartridge for fuel cells and a fuel cell.

Abstract: The present invention provides a cartridge for a methanol fuel cell at low cost, which does not show deterioration in electric power generation performance, can be operated for a prolonged period of time, and can be reduced in size and weight. In the present invention, the cartridge for a methanol fuel cell has an inner resin layer containing a resin having such a property that, after a film of the resin is immersed in methanol at 60° C. for 7 days, the methanol is diluted twice in terms of a volume ratio with distilled water at room temperature to give a liquid, the liquid shows a light transmittance of 10% or higher at 300 nm.

Abstract: Provided is a methanol fuel cell cartridge formed of a container comprising a polyester-based resin layer which has a methanol vapor permeability coefficient at 40° C. of 3 ?g·mm/m2·hr or less and a cation index in a methanol immersion test of 30 or less, and is produced by using a titanium-based catalyst. According to the present invention, the methanol fuel cell cartridge can be produced at low cost, which is excellent in impermeability (barrier performance) to methanol and oxygen, can be downsized, reduced in weight, and increased in transparency, and does not cause deterioration in battery performance of the fuel cell during operation.

Abstract: Disclosed is a small-sized, light-weighted, low-cost cartridge for methanol fuel cells which has excellent permeation-preventing performance (barrier properties) against methanol and oxygen. This cartridge is suitably used as a fuel tank or refill container for a direct methanol fuel cell (DMFC). Specifically disclosed is a cartridge for methanol fuel cells comprising at least one methanol impermeable layer having a methanol vapor permeability coefficient of not more than 15 ?g·mm/m2·hr at 40° C. The methanol impermeable layer of the cartridge is preferably made of a cyclic olefin resin, a polyester resin, a resin coated with an inorganic film or the like.

Abstract: A fuel cell cartridge for containing fuel for fuel cells, comprising a polyester resin, wherein after the fuel is contained and preserved at 60° C. for one week, a change of density at the bottom portion and the mouth portion is 0.01 g/cm3 or less. Even when methanol of a high concentration is contained, the fuel cell cartridge maintains excellent appearance effectively preventing the occurrence of whitening in the container and, particularly, at the mouth portion and the bottom portion thereof, and effectively suppressing a decrease in the shock resistance.

Abstract: A nozzle part 9 provided in a fuel cartridge is inserted in a socket part 6 provided in a fuel cell body, and the nozzle part 9 and the socket part 6 are coupled. The nozzle part 9 has a nozzle head 12 provided on the cartridge body 8 and a valve mechanism arranged in this nozzle head 12. On a tip of the nozzle head 12, a spherical portion 15 is provided so as to detach from the socket part 6 without being interfered when a bending load is applied to the fuel cartridge 5 coupled to the fuel cell body.

Abstract: An easily unsealable container closure having re-sealing performance and comprising a closure member having an opening portion that has been formed in advance, and an unsealing tab which is so fitted to the outer surface side of the closure member as to cover the opening portion and is hermetically adhered to the periphery of the opening portion, wherein the unsealing tab includes a flexible tab member and a plug member integrally adhered to the tab member and is so formed as to be fitted to the opening portion of the closure member, and the flexible tab member is hermetically fixed to the periphery of the opening portion in the closure member so as to be torn off. The container closure offers re-sealing performance which can be repetitively effected to temporarily seal again the once unsealed opening, and further offers excellent re-sealing performance, unseal indication function and easy-to-unseal performance.