Abstract: A method for producing an aluminum film by electrodepositing aluminum on a base in an electrolytic cell to which a liquid electrolyte containing a molten salt is fed includes adjusting a concentration of an additive in such a manner that a measured value of an overvoltage is within a predetermined range on the basis of a predetermined relationship between the overvoltage and the concentration of the additive added to the molten salt upon electrodepositing aluminum in the liquid electrolyte.

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 is disclosed. 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: The electrode for the power storage device includes carbon nanotubes, an ionic liquid, and a three-dimensional network metal porous body having a plurality of pore portions filled with the carbon nanotubes and the ionic liquid, wherein, in pore portions exposed at a surface of the three-dimensional network metal porous body, of the plurality of pore portions, a ratio (d/D) between a pore portion diameter (D) in a first direction within the surface of the three-dimensional network metal porous body and a pore portion diameter (d) in a second direction orthogonal to the first direction within the surface of the three-dimensional network metal porous body is in a range of 0<d/D<1, and pore portions in said range account for more than or equal to 95% and less than or equal to 100% of the pore portions exposed at the surface.

Abstract: It is an object of the present invention to provide a sheet-shaped three-dimensional network aluminum porous body for a current collector which is suitably used for electrodes for nonaqueous electrolyte batteries and electrodes for capacitors, an electrode and a capacitor each using the same. In such a three-dimensional network aluminum porous body for a current collector, the aluminum porous body has been made to have a compressive strength in a thickness direction of 0.2 MPa or more in order to efficiently fill an active material into the sheet-shaped three-dimensional network aluminum porous body.

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: An electrode active material for capacitors contains a porous carbon material. The porous carbon material has a BET specific surface area of 800 m2/g or more. An X-ray diffraction image of the porous carbon material with CuK?rays has a peak Pk at 2?=40° to 50°, and the peak Pk includes a component of a peak Pd111 attributed to a (111) plane of diamond crystals. When the X-ray diffraction image has a peak PG002 attributed to a (002) plane of graphite, a ratio of an intensity IG002 of PG002 to an intensity Ik of Pk (IG002/Ik) is 3.0 or less.

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: Provided is a lithium-ion capacitor having increased capacity, while also having suppression of the falling away of an active material from a current collector. The lithium-ion capacitor includes: a positive electrode and a negative electrode, both including the active material and the current collector holding the active material; and a non-aqueous electrolyte having lithium ion conductivity. At least one of the current collectors is a porous body having interconnected pores and a porosity of over 30% and 98% or less, the pores filled with either one of the active materials that can reversibly carry lithium. At least one of the active materials is pre-doped with lithium. The lithium pre-doped into the negative electrode active material is, in part or in whole, pre-doped from lithium electrochemically connected to the negative electrode, directly or after passing through at least one or more of the positive electrodes.

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: 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.