摘要:
The present invention provides a method for manufacturing a membrane electrode assembly which improves the reliability of seal, mechanical strength, and handling ability of a solid polymer type fuel cell. The manufacturing method includes: preparing a membrane electrode assembly which differs in the size of the gas diffusion layers at the anode side and the cathode side; and providing a resin frame at the outer peripheral edge of the membrane electrode assembly by molding; wherein the molding includes the use of a mold that keeps penetration of the resin frame material into the gas diffusion layers and/or electrode layers to a minimum and prevents warping of the outer peripheral edges.
摘要:
To provide a manufacturing method of a membrane electrode assembly which improves the reliability of seal, mechanical strength, and handling ability of a solid polymer type fuel cell.The manufacturing method of a membrane electrode assembly according to the present invention prepares a membrane electrode assembly which differs in size of gas diffusion layers at an anode side and cathode side, provides the outer peripheral edge of the membrane electrode assembly with a resin frame by molding, and, at that time, provides projections or a concave part and convex part at a top mold and bottom mold used for the molding so as to keep to a minimum the penetration of the resin frame material to the gas diffusion layers and/or electrode layers and prevent warping of the outer peripheral edges of the larger gas diffusion layer etc.
摘要:
An AC superconducting cable with an insulating layer on the external circumference of a conductor, and wherein: the insulating layer includes a first insulating layer, a second insulating layer and a third insulating layer, from the inside layer to the outside layer; the insulating layer is impregnated with liquid nitrogen; the product of the dielectric constant ∈1 of the first insulating layer and the dielectric loss tangent tan δ1 and the product of the dielectric constant ∈2 of the second insulating layer and the dielectric loss tangent tan δ2 fulfilling the relationship ∈1×tan δ1>∈2×tan δ2; and the product of the dielectric constant ∈2 of the second insulating layer and the dielectric loss tangent tan δ2 and the product of the dielectric constant ∈3 of the third insulating layer and the dielectric loss tangent tan δ3 fulfilling the relationship ∈2×tan δ2
摘要:
A cryogenic cable termination connector having a small heat inflow from the outside and stable electrical insulation properties. The cryogenic cable termination connector includes a lead-out conductor led out from a site at a very low temperature to a site at room temperature via a liquid refrigerant layer, a refrigerant gas layer, and an oil layer. The lead-out conductor includes a capacitor-cone insulator in which plural metal foils for dividing an electric field from a high voltage level down to the ground voltage level are stacked through an insulator. Among electric field tilting portions in which voltage changes gradually from the high voltage level to the ground voltage level, an electric field tilting portion positioned at a lower part is located in the liquid refrigerant layer and an electric field tilting portion positioned at an upper part is located in the oil layer.
摘要:
In a terminal structure of a superconducting cable conductor, a terminal portion of the superconducting cable conductor is connected with a terminal member of a good conductor. The terminal portion includes a superconducting layer disposed on an outer periphery of a central support; and an insulating layer surrounding the superconducting layer. The insulating layer and the superconducting layer are partially removed to expose the central support and the superconducting layer in this order from an end of the superconducting cable conductor. The terminal member includes a metal sleeve which includes a first cylindrical portion whose inner surface is in close contact with an exposed portion of the central support; a second cylindrical portion which is soldered around an exposed portion of the superconducting layer; and a third cylindrical portion into which the insulating layer is inserted.
摘要:
In a terminal structure of a superconducting cable conductor, a terminal portion of the superconducting cable conductor is connected with a terminal member of a good conductor. The terminal portion includes a superconducting layer disposed on an outer periphery of a central support; and an insulating layer surrounding the superconducting layer. The insulating layer and the superconducting layer are partially removed to expose the central support and the superconducting layer in this order from an end of the superconducting cable conductor. The terminal member includes a metal sleeve which includes a first cylindrical portion whose inner surface is in close contact with an exposed portion of the central support; a second cylindrical portion which is soldered around an exposed portion of the superconducting layer; and a third cylindrical portion into which the insulating layer is inserted.
摘要:
In a superconducting cable line in which a superconducting cable is connected to a terminal connecting part or an intermediate connecting part, an offset part in which a superconducting cable is laid in a curved-shape is provided near the terminal connecting part or the intermediate connecting part. Further, when it is assumed that the superconducting cable is movable in the offset part, an external tube of the superconducting cable is fixed such that a maximum amplitude part which maximizes the amount of movement of the superconducting cable following thermal expansion and contraction of a cable core becomes immovable.
摘要:
An AC superconducting cable with an insulating layer on the external circumference of a conductor, and wherein: the insulating layer includes a first insulating layer, a second insulating layer and a third insulating layer, from the inside layer to the outside layer; the insulating layer is impregnated with liquid nitrogen; the product of the dielectric constant ∈1 of the first insulating layer and the dielectric loss tangent tan δ1 and the product of the dielectric constant ∈2 of the second insulating layer and the dielectric loss tangent tan δ2 fulfilling the relationship ∈1×tan δ1>∈2×tan δ2; and the product of the dielectric constant ∈2 of the second insulating layer and the dielectric loss tangent tan δ2 and the product of the dielectric constant ∈3 of the third insulating layer and the dielectric loss tangent tan δ3 fulfilling the relationship ∈2×tan δ2
摘要:
A thermal insulation tube has a double-structure including a thermal insulation internal tube and a thermal insulation external tube, an intermediate connecting part has a double-structure including an outer container and an inner container, the internal tube and the external tube penetrate through a wall surface of the outer container and are introduced at least up to a wall surface of the inner container, a region between the internal tube and the external tube is sealed by joining an end to be introduced of the internal tube and an end to be introduced of the external tube, at an introduction portion of the external tube to be positioned on an inner side of a wall surface of the outer container, and a corrugated tubular part has a tube wall thinner than the external tube outside of the wall surface.
摘要:
In a superconducting cable line in which a superconducting cable is connected to a terminal connecting part or an intermediate connecting part, an offset part in which a superconducting cable is laid in a curved-shape is provided near the terminal connecting part or the intermediate connecting part. Further, when it is assumed that the superconducting cable is movable in the offset part, an external tube of the superconducting cable is fixed such that a maximum amplitude part which maximizes the amount of movement of the superconducting cable following thermal expansion and contraction of a cable core becomes immovable.