Abstract: Provided are a three-dimensional net-like aluminum porous body in which the diameter of cells in the porous body is uneven in the thickness direction of the porous body; a current collector and an electrode each using the aluminum porous body; and methods for producing these members. The porous body is a three-dimensional net-like aluminum porous body in a sheet form, for a current collector, in which the diameter of cells in the porous body is uneven in the thickness direction of the porous body. When a cross section in the thickness direction of the three-dimensional net-like aluminum porous body is divided into three regions of a region 1, a region 2 and a region 3 in this order, the average cell diameter of the regions 1 and 3 is preferably different from the cell diameter of the region 2.

Abstract: A three-dimensional network aluminum porous body which enables to produce an electrode continuously, an electrode using the aluminum porous body, and a method for producing the electrode. A long sheet-shaped three-dimensional network aluminum porous body is provided to be used as a base material in a method for producing an electrode including at least winding off, a thickness adjustment step, a lead welding step, an active material filling step, a drying step, a compressing step, a cutting step and winding-up, wherein the three-dimensional network aluminum porous body has a tensile strength of 0.2 MPa or more and 5 MPa or less.

Abstract: A molten-salt electrolysis plating apparatus that uses a molten salt for a liquid electrolyte satisfies any one of (i) to (iv) below. (i) At least a portion that is in contact with the liquid electrolyte contains a vinyl chloride resin, and the vinyl chloride resin has a chlorine content of 51% by mass or more. (ii) At least a portion that is in contact with the liquid electrolyte contains a vinyl chloride resin, and the vinyl chloride resin contains titanium oxide. (iii) At least a portion that is in contact with the liquid electrolyte contains a polyethylene resin, and the polyethylene resin has a density of 0.940 g/cm3 or more. (iv) At least a portion that is in contact with the liquid electrolyte contains a polyethylene resin, and the polyethylene resin has a tensile strength of 15 MPa or more.

Abstract: Provided is a method of producing an aluminum structure using a porous resin molded body having a three-dimensional network structure, with which it is possible to form an aluminum structure having a low oxide content in the surface of aluminum (i.e., having an oxide film with a small thickness), and in particular, it is possible to obtain an aluminum porous body that has a large area. The method includes a step of preparing an aluminum-coated resin molded body in which an aluminum layer is formed, directly or with another layer therebetween, on a surface of a resin molded body composed of urethane, and a heat treatment step in which the aluminum-coated resin molded body is subjected to heat treatment at a temperature equal to or higher than 270° C. and lower than 660° C. to decompose the resin molded body.

Abstract: The method for producing an electrode for an electrochemical element of the present invention includes a slurry filling step of filling a slurry containing an active material into continuous pores of an aluminum porous body having the continuous pores, and a slurry drying step of drying the slurry filled, and in this method, after the slurry drying step, an electrode for an electrochemical element is produced without undergoing a compressing step of compressing the aluminum porous body having the slurry filled therein and dried. In the electrode, a mixture containing an active material is filled into continuous pores of an aluminum porous body having the continuous pores, and porosity (%) of the aluminum porous body, the porosity being represented by the following equation, is 15 to 55%.

Abstract: By producing a positive electrode having a large capacity commensurate with the negative electrode capacity, a lithium ion capacitor having an increased capacity can be provided. A lithium ion capacitor includes a positive electrode including a positive electrode active material mainly composed of activated carbon and a positive electrode current collector, a negative electrode including a negative electrode active material capable of occluding and desorbing lithium ions and a negative electrode current collector, and a nonaqueous electrolyte containing a lithium salt, in which the positive electrode current collector is an aluminum porous body having a three-dimensional structure, the positive electrode active material is filled into the positive electrode current collector, and the negative electrode current collector is a metal foil or a metal porous body.

Abstract: 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.

Abstract: Provided are a three-dimensional net-like aluminum porous body in which the diameter of cells in the porous body is uneven in the thickness direction of the porous body; a current collector and an electrode each using the aluminum porous body; and methods for producing these members. The porous body is a three-dimensional net-like aluminum porous body in a sheet form, for a current collector, in which the diameter of cells in the porous body is uneven in the thickness direction of the porous body. When a cross section in the thickness direction of the three-dimensional net-like aluminum porous body is divided into three regions of a region 1, a region 2 and a region 3 in this order, the average cell diameter of the regions 1 and 3 is preferably different from the cell diameter of the region 2.

Abstract: Provided is a method for producing an aluminum film, which is capable of continuously mass-producing aluminum films having excellent surface smoothness and a mirror surface. A method for producing an aluminum film includes electrodepositing aluminum on a surface of a substrate in an electrolyte solution, in which the electrolyte solution contains, as components, (A) an aluminum halide, (B) at least one compound selected from the group consisting of an alkyl pyridinium halide, an alkyl imidazolium halide, and a urea compound, and (C) 1,10-phenanthroline monohydrate; in which the mixing ratio (molar ratio) of the component (A) to the component (B) is in the range of 1:1 to 3:1; and in which the concentration of the 1,10-phenanthroline monohydrate in the electrolyte solution is controlled to be in the range of 0.05 to 7.5 g/L.

Abstract: Provided is a method for producing an aluminum film having a mirror surface and reduced residual stress. A method for producing an aluminum film includes electrodepositing aluminum on a surface of a substrate in an electrolyte solution, in which the electrolyte solution is obtained by adding, to a molten salt composed of aluminum chloride and an alkylimidazolium chloride, at least one compound A selected from the group consisting of an organic solvent, an organic polymer compound having a number-average molecular weight of 200 to 80,000, and a nitrogen-containing heterocyclic compound having 3 to 14 carbon atoms, and a compound B having an amino group.

Abstract: The invention offers an aluminum-plating apparatus that can satisfactorily form an aluminum plating even on the surface of a base body that has a surface on which an insulating or poorly conductive metal oxide film or the like is formed. The aluminum-plating apparatus electrodeposits aluminum onto a base body by conveying the base body in a plating bath. The plating bath is divided into a first electrolysis chamber and a second electrolysis chamber by a partition plate in this order from the upstream side in the conveying direction for the base body. In the first electrolysis chamber, a negative electrode provided in the chamber is electrically connected with the base body such that the base body acts as a positive electrode. In the second electrolysis chamber, a positive electrode provided in the chamber is electrically connected with the base body such that the base body acts as a negative electrode.

Abstract: An electrode for an electric storage device includes at least an active material selected from the group consisting of a carbon nanotube, activated carbon, hard carbon, graphite, graphene and a carbon nanohorn; an ionic liquid; and a three-dimensional network metal porous body.

Abstract: 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. Y=a×exp(0.06X)??(Formula) (In the (Formula), Y represents a specific surface area [m2/m3], X represents the number of cells [per inch], and a represents a number of 100 or more and 1,000 or less.

Abstract: An electrode material that is used as an electrode in an electric double layer capacitor, a lithium ion capacitor, and a lithium secondary battery and has a reduced internal resistance for improving output is provided. The electrode material is characterized in that a metal is filled into pores in a surface portion at one surface of a powder molded body containing at least an active material powder and a metal film is formed on the one surface. The electrode material can be formed by performing a plating treatment on the powder molded body.

Abstract: There is provided a metal laminated structure in which a first metal layer containing tungsten is provided on a first surface of a second metal layer containing copper and a third metal layer containing tungsten is provided on a second surface of the second metal layer opposite to the first surface, and the first metal layer contains crystal grains of tungsten in a form of a columnar crystal extending in a direction perpendicular to the first surface of the second metal layer and the third metal layer contains crystal grains of tungsten in a form of a columnar crystal extending in a direction perpendicular to the second surface of the second metal layer, and a method for producing the metal laminated structure.

Abstract: Provided is a lithium secondary battery with three-dimensional network porous bodies as current collectors in which the internal resistance does not increase even after repeated charging and discharging. A lithium secondary battery including a positive electrode and a negative electrode each having as a current collector a three-dimensional network porous body, the positive electrode and the negative electrode being formed by filling at least an active material into pores of the three-dimensional network porous bodies, wherein the three-dimensional network porous body for the positive electrode is a three-dimensional network aluminum porous body having a hardness of 1.2 GPa or less, and the three-dimensional network porous body for the negative electrode is a three-dimensional network copper porous body having a hardness of 2.6 GPa or less.

Abstract: Provided an all-solid lithium secondary battery hardly gives rise to internal resistance even if charging and discharging are repeated. The all-solid lithium secondary battery including a positive electrode and a negative electrode, each of electrodes being an electrode in which a three-dimensional network porous body is used as a current collector and pores of the three-dimensional network porous body are filled with at least an active material, wherein the three-dimensional network porous body of the positive electrode includes an aluminum alloy with a Young's modulus of 70 GPa or higher and the three-dimensional network porous body of the negative electrode includes a copper alloy with a Young's modulus of 120 GPa or higher.

Abstract: Provided are a current collector, an electrode, and a nonaqueous electrolyte secondary battery, each of which capable of reducing internal resistance and producing cost. More specifically, provided are: a three-dimensional network metal porous body for a current collector, comprising a sheet-shaped three-dimensional network metal porous body, wherein a degree of porosity of the sheet-shaped three-dimensional network metal porous body is 90% or more and 98% or less, and a 30%-cumulative pore diameter (D30) of the sheet-shaped three-dimensional network metal porous body calculated from a fine pore diameter measurement conducted by a bubble point method is 20 ?m or more and 100 ?m or less; an electrode using the three-dimensional network metal porous body; and a nonaqueous electrolyte secondary battery including the electrode.

Abstract: A three-dimensional network aluminum porous body in which the amount of aluminum forming a skeleton of the three-dimensional network aluminum porous body is uneven in the thickness direction, and a current collector and an electrode each using the aluminum porous body, and a manufacturing method thereof. In such a sheet-shaped three-dimensional network aluminum porous body for a current collector, the amount of aluminum forming a skeleton of the three-dimensional network aluminum porous body is uneven in the thickness direction. For example, in the case where a cross section in the thickness direction of the three-dimensional network aluminum porous body is divided into three regions of a region 1, a region 2 and a region 3 in this order, each region is configured so that the average of the amounts of aluminum in the region 1 and the region 3 differs from the amount of aluminum in the region 2.

Abstract: A capacitor has a positive electrode, a negative electrode, and a solid electrolyte layer arranged between the electrode layers. At least one of the electrode layers of this capacitor has an Al porous body, and an electrode body held in this Al porous body to polarize the electrolyte. The oxygen content in the surface of the Al porous body is 3.1% by mass or less. The matter that the oxygen content in the surface of the Al porous body 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. Thus, this Al porous body makes it possible to make the current collector area of the electrode layer large so that the capacitor can be improved in capacity.