摘要:
Provided are a fuel cell that employs a fuel-electrode collector excellent in terms of thermal conductivity and the like, so that it is excellent in terms of power generation efficiency and cost effectiveness; and a method for operating the fuel cell. Included are a membrane electrode assembly (MEA), a fuel-electrode collector that is a porous metal body disposed in contact with a fuel electrode and performing current collection, and a heating device operated by electric power, wherein a solid electrolyte is a proton-permeable electrolyte, a fuel-gas channel is provided to cause a fuel gas to pass through the fuel-electrode collector, and the porous metal body constituting the fuel-electrode collector is formed of aluminum or aluminum alloy.
摘要:
A capacitor has a positive electrode 10, a negative electrode 20, and a solid electrolyte layer arranged between the electrode layers 10 and 20. At least one 10 (20) of the electrode layers of this capacitor 100 has an Al porous body 11, and an electrode body 12 (13) held in this Al porous body 11 to polarize the electrolyte. The oxygen content in the surface of the Al porous body 11 is 3.1% by mass or less. The matter that the oxygen content in the surface of the Al porous body 11 is 3.1% by mass or less is equal to the matter that a high-resistance oxide film is hardly formed on the surface of the Al porous body 11. Thus, this Al porous body 11 makes it possible to make the current collector area of the electrode layer 10 (20) large so that the capacitor 100 can be improved in capacity.
摘要:
Provided is a porous aluminum body capable of being used as a heat transfer material having a very large specific surface area, a good heat-exchange efficiency, and a low pressure drop of a gas. The porous aluminum body contains aluminum as a main component. The porous aluminum body has a three-dimensional network structure and has a specific surface area (Y) represented by a (Formula) below. (In the (Formula), Y represents a specific surface area [m 2 /m 3 ], X represents the number of cells [per inch], and a represents a number of 100 or more and 1,000 or less.)
摘要:
There is provided a metal laminated structure (100) in which a first metal layer (1) containing tungsten is provided on a first surface (2a) of a second metal layer (2) containing copper and a third metal layer (3) containing tungsten is provided on a second surface (2b) of the second metal layer (2) opposite to the first surface (2a), and the first metal layer (1) contains crystal grains of tungsten in a form of a columnar crystal extending in a direction perpendicular to the first surface (2a) of the second metal layer (2) and the third metal layer (3) contains crystal grains of tungsten in a form of a columnar crystal extending in a direction perpendicular to the second surface (2b) of the second metal layer (2), and a method for producing the metal laminated structure (100).