Patent application number | Description | Published |
20090081520 | METAL SEPARATOR FOR FUEL CELLS AND FABRICATING METHOD THEREOF - A metal separator for fuel cells formed with a metal plate and provided between cells accumulated, in which the metal plate is formed like trapezoidal irregularities to separate channels for a fuel gas from ones for an oxidant gas. Slope portions are formed after forming uniformly and thinly wall thickness of both upper and lower flat portions or either of the upper or the lower flat portion to 90% or less of that of the metal plate to be formed to obtain trapezoidal irregularities by forming flat portions which contact upper and lower cells and slope portions which interconnect the upper and the lower flat portions. | 03-26-2009 |
20090081522 | Metal composite for fuel cell and fuel cell bipolar plate using same, and fabrication method for same - A metal composite for fuel cells according to the present invention, which includes: a core of a metal; cladded layers of a corrosion resistant metal covering both surfaces of the core; and a through-hole formed through the core and cladded layers. The through-hole has, on a hole wall of the core region of the through-hole, a concave portion which is recessed relative to hole walls of the cladded layer regions of the through-hole. | 03-26-2009 |
20090092878 | CURRENT-COLLECTING COMPOSITE PLATE FOR FUEL CELL AND FUEL CELL FABRICATED USING SAME - A current-collecting composite plate for a fuel cell configured with unit cells according to the present invention, which comprises: an insulator layer; and a plurality of pairs of conductor layers, the conductor layers being bonded to the insulator layer to be spaced apart from each other by a predetermined distance, each pair being used for adjacently disposed anode and cathode electrodes for a different one of the unit cells by sandwiching an electrolyte assembly therebetween. And, each conductor layer includes: a first conductor layer of a corrosion resistant metal treated with an electrically conductive surface treatment; a second conductor layer of a metal with low electrical resistivity; a through-hole penetrating the first conductor layer and the insulator layer; and a connecting portion formed of the second conductor layer for connecting the unit cells. | 04-09-2009 |
20090312187 | Method for fabricating a superconducting wire - A metallic thin film is wound around a core material made of a first metallic material in a predetermined number of windings to provide a first wire rod having a diameter which is applicable for roll forming in a longitudinal direction of the core material. The metallic thin film is formed by rolling a second metallic material and carrying out an annealing heat treatment on the rolled second metallic material. The first wire rod is cut to provide second wire rods, and the second wire rods are filled into a billet for multi-wires to provide a multi billet. The multi billet is extruded and drawn. Thereafter, a heat treatment is carried out on the drawn material to provide a superconducting wire. | 12-17-2009 |
20100096117 | RADIATOR PLATE, PERFORATED PLATE AND METHODS OF MAKING THE SAME - A radiator plate includes a core having core surfaces and holes whose hole axes are directed in a direction along a normal direction of the core surface, and heat transfer plates joined to the core surfaces and filled in the holes. A multilayer radiator plate includes a first radiator plate including a first core having first core surfaces and first holes whose hole axes are directed in a direction along a normal direction of the first core surface and first heat transfer plates joined to the first core surfaces and filled in the first holes, a second radiator plate including a second core having second core surfaces and second holes whose hole axes are directed in a direction along a normal direction of the second core surface and second heat transfer plates joined to the second core surfaces and filled in the second holes, and the first radiator plate and the second radiator plate are joined to each other. | 04-22-2010 |
20110190139 | METHOD OF PRODUCING Nb3Sn SUPERCONDUCTING WIRE ROD, AND Nb3Sn SUPERCONDUCTING WIRE ROD - A method of producing a Nb | 08-04-2011 |