초록 ▼

A fuel cell includes a solid polymer ion exchange membrane having a thickness which is set to be within a range of 20 μm to 60 μm. The fuel cell comprises a fuel gas flow passage for supplying a non-humidified fuel gas from a side of a first surface of the ion exchange membrane, and an oxygen-contai

A fuel cell includes a solid polymer ion exchange membrane having a thickness which is set to be within a range of 20 μm to 60 μm. The fuel cell comprises a fuel gas flow passage for supplying a non-humidified fuel gas from a side of a first surface of the ion exchange membrane, and an oxygen-containing gas flow passage for supplying a non-humidified oxygen-containing gas from a side of a second surface of the ion exchange membrane. A portion of the fuel gas flow passage, which is disposed in the vicinity of a fuel gas inlet, is arranged closely to a portion of the oxygen-containing gas flow passage disposed in the vicinity of an oxygen-containing gas outlet. Accordingly, the oxygen-containing gas and the fuel gas can be supplied without humidification, and it is possible to perform efficient and smooth operation.

대표청구항 ▼

A fuel cell includes a solid polymer ion exchange membrane having a thickness which is set to be within a range of 20 μm to 60 μm. The fuel cell comprises a fuel gas flow passage for supplying a non-humidified fuel gas from a side of a first surface of the ion exchange membrane, and an oxygen-contai

A fuel cell includes a solid polymer ion exchange membrane having a thickness which is set to be within a range of 20 μm to 60 μm. The fuel cell comprises a fuel gas flow passage for supplying a non-humidified fuel gas from a side of a first surface of the ion exchange membrane, and an oxygen-containing gas flow passage for supplying a non-humidified oxygen-containing gas from a side of a second surface of the ion exchange membrane. A portion of the fuel gas flow passage, which is disposed in the vicinity of a fuel gas inlet, is arranged closely to a portion of the oxygen-containing gas flow passage disposed in the vicinity of an oxygen-containing gas outlet. Accordingly, the oxygen-containing gas and the fuel gas can be supplied without humidification, and it is possible to perform efficient and smooth operation. ving a surface, with said polymer material having said phosphorescent dye agent distributed therein formed as a coating thereon. 13. A pressure sensor as defined in claim 5 further comprising a substrate having a surface, with said polymer material having said phosphorescent dye agent distributed therein formed as a coating thereon. 14. A pressure sensor comprising a polymeric material having a backbone containing nitrogen, sulfur and phosphorous, the polymeric material having a phosphorescent dye agent distributed therein to detect changes in pressure, each of said sulfur and phosphorous having side groups selected from the group consisting of oxygen, a halogen, an aryloxy group, an alkoxy group, an arylamine group and an alkylamine group. 15. A pressure sensor as defined in claim 14 wherein said sulfur has a first side group including oxygen. 16. A pressure sensor as defined in claim 15 wherein said sulfur has a second side group that is a halogen. 17. A pressure sensor as defined in claim 16 wherein said sulfur has a second side group, and said phosphorous has first and second side groups which are the same as the second side group on sulfur. 18. A pressure sensor as defined in claim 14 wherein said phosphorous has first and second side groups and said sulfur has at least one side group, and the first and second side groups on phosphorous and the at least one side group on sulfur are selected from NHBun,OBun,OC6H4,OC6H4CF3--m, OCH2CH=CH2,OC6H4CF3--m and OC6H4CF3--p. 19. A pressure sensor as defined in claim 18 wherein the first and second side groups on phosphorous and the second side group on sulfur are the same. 20. A pressure sensor as defined in claim 19 wherein said dye agent includes platinum or ruthenium. 21. A pressure sensor as defined in claim 20 wherein said dye agent includes Pt octaethylporphyrin, a RuIIbipyridyl, or RuIIphenanthroline. 22. A pressure sensor comprising a copolymeric material having a first polymer block having a backbone containing nitrogen and either sulfur or phosphorous or a combination thereof, the copolymeric material having a phosphorescent dye agent distributed therein, the pressure sensor being operable in an environment to sense changes in pressure therein. 23. A pressure sensor as defined in claim 22 wherein the first polymer block contains sulfur and wherein said sulfur is sulfur VI. 24. A pressure sensor as defined in claim 23, wherein said first polymer block terminates at said sulfur in an electron deficient state, said copolymeric material further comprising a second polymer block which includes at least one electron rich site. 25. A pressure sensor as defined in claim 24 wherein said at least one electron rich site includes oxygen or nitrogen. 26. A pressure sensor as defined in claim 25 wherein said second polymer block is formed by a ring opening polymerization of a cyclic group in the presence of said first polymer block, wherein said cyclic group is selected from the group consisting of a substituted or unsubstituted C3-20cycloalkyl group, a substituted or unsubstituted C6-20aryl group and a substituted or unsubstituted C6-20aralkyl group. 27. A pressure sensor as defined in claim 26 wherein said cyclic group is a C3-5cyclic group with an oxygen or nitrogen substituent in the ring. 28. A pressure sensor as defined in claim 26 wherein said cyclic group is tetrahydrofuran, ethylene oxide or propylene oxide. 29. A method of forming a pressure sensor, comprising the steps of: forming a mixture including a polymer having a backbone containing nitrogen and either sulfur or phosphorous or a combination thereof, together with a phosphorescent dye agent, said sensor being operatively characterized by a Stern Volmer plot having a linearity ranging from 0.