Sumitomo Electric Industries, Limited

Sumitomo Electric Toyama Co., Ltd.

Primearth Ev Energy Co., Ltd.

Toyota Battery Co., Ltd.

Junichi Nishimura

Kazuki Okuno

Akihisa Hosoe

Kengo Goto

Koutarou Kimura

Hajime Ota

Hideaki Sakaida

Hitoshi Tsuchida

Masatoshi Majima

Koji Nitta

Tomoyuki Awazu

Nobuhiro Ota

Koutaro Kimura

Yusuke Shimizu

Takahiro Higashino

Masahiro Kato

Hidetoshi Saito

Seiji Mabuchi

Keiji Shiraishi

Tomoharu Takeyama

Mitsuyasu Ogawa

Jin-Joo Park

Junichi Motomura

Kengo Tsukamoto

Tadashi Omura

Toshitaka Nakagawa

Akihiro Fujimaki

A metal porous body includes: a metal framework; and a separation wall formed in one piece with the metal framework, the separation wall being composed of the same material as a material of the metal framework. A plurality of cells each having a polyhedral shape exist inside the metal porous body. A side of the polyhedral shape is constituted of the metal framework. A location in which an opening of a cell of the plurality of cells is closed by the separation wall exists inside the metal porous body, the opening being defined by a side of a polyhedral shape of the cell.

Metal porous body

A metal porous material according to an aspect of the present disclosure is a metal porous material in sheet form that includes a frame having a three-dimensional network configuration, wherein the frame includes an alloy including at least nickel (Ni) and chromium (Cr), the frameis a solid solution with iron (Fe), the frame includes a chromium oxide (CrO) layer as an outermost layer and includes a chromium carbide layer located under the chromium oxide layer, the chromium oxide layer has a thickness not less than 0.1 &#x3bc;m and not more than 3 &#x3bc;m, and the chromium carbide layer has a thickness not less than 0.1 &#x3bc;m and not more than 1 &#x3bc;m.

Metal porous material, fuel cell, and method of producing metal porous material

A fuel cell according to the present disclosure includes a flat plate-shaped metal porous body having a framework of a three-dimensional network structure as a gas diffusion layer. The framework is made of metal or alloy. In the metal porous body, a ratio of an average pore diameter in a direction parallel to a gas flow direction to an average pore diameter in a direction perpendicular to the gas flow direction is greater than or equal to 1.4 and less than or equal to 2.5.

Fuel cell and method of manufacturing metal porous body

A metal porous body is a metal porous body mainly composed of nickel and having a framework of a three-dimensional network structure, Ni(OH)being present in a surface of the framework, when the metal porous body is subjected to at least 30 potential scans between a lower limit potential of &#x2212;0.10 V and an upper limit potential of +0.65 V with respect to a hydrogen standard potential in not less than 10% by mass and not more than 35% by mass of a potassium hydroxide aqueous solution, at least oxygen being detected within a depth of 5 nm from the surface, and hydrogen being detected at least in the surface.

Metal porous body and current collector for nickel-metal hydride battery

A metal porous body having a connection portion where end portions in a longitudinal direction X of at least two long sheet-shaped metal porous materials are connected in a manner overlapping with each other, each of the metal porous materials having a frame with a three-dimensional network structure, the metal porous body having a recess with a thickness thinner than a thickness of each of the metal porous materials, in the connection portion, the frames of the at least two metal porous materials being entangled with each other, in the recess.

Metal porous body and method for manufacturing metal porous body

Provided are a porous metal body that is excellent in terms of corrosion resistance and that is suitable for a collector for batteries such as lithium-ion batteries, capacitors, or fuel cells; and methods for producing the porous metal body. A production method includes a step of coating a porous nickel body with an alloy containing at least nickel and tungsten or a metal containing at least tin; and a subsequent step of a heat treatment. Another production method includes a step of forming a nickel-plated layer on a porous base and then continuously forming an alloy-plated layer containing at least nickel and tungsten or tin, a step of removing the porous base, and a step of reducing metal. Such a method can provide a porous metal body in which tungsten or tin is diffused in a porous nickel body or a nickel-plated layer.

Method for producing a porous metal body

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.

Three-dimensional network aluminum porous body, electrode using the aluminum porous body, and nonaqueous electrolyte battery, capacitor and lithium-ion capacitor with nonaqueous electrolytic solution, each using the electrode

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.

Method for producing aluminum film

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, a regionand a regionin this order, the average cell diameter of the regionsandis preferably different from the cell diameter of the region

Three-dimensional net-like aluminum porous body, electrode using the aluminum porous body, nonaqueous electrolyte battery using the electrode, and nonaqueous electrolyte capacitor using the electrode

The invention offers an electrode material that can accomplish both high capacity and high output and a battery, a nonaqueous-electrolyte battery, and a capacitor all incorporating the electrode material. The electrode material has a sheet-shaped aluminum porous body carrying an active material. The above-described aluminum porous body has a skeleton structure that is formed of an aluminum layer and that has a vacant space at the interior. When observed by performing cutting in a direction parallel to the direction of thickness of the sheet, the above-described vacant space in the skeleton structure has an average area of 500 &#x3bc;mor more and 6,000 &#x3bc;mor less.

Electrode material; and battery, nonaqueous-electrolyte battery, and capacitor all incorporating the material

It is an object of the present invention to provide a method for producing an electrode for an electrochemical element, which can easily adjust a capacity and can produce the electrochemical element at low cost. The method for producing an electrode for an electrochemical element of the present invention includes a thickness adjustment step of compressing an aluminum porous body having continuous pores to adjust the thickness of the aluminum porous body to a predetermined thickness, and a filling step of filling the aluminum porous body, the thickness of which is adjusted, with an active material.

Method for producing electrode for electrochemical element

It is an object of the present invention to provide a current collector including an aluminum porous body suitable for an electrode for a nonaqueous electrolyte battery and an electrode for a capacitor electrode, and an electrode using the current collector. In the three-dimensional network aluminum porous body for a current collector of the present invention, when a sheet-shaped three-dimensional aluminum porous body is divided in the width direction into a central region and two end regions with the central region situated therebetween, the weight per unit area of aluminum in the aluminum porous body at the two end regions is larger than the weight per unit area of aluminum in the aluminum porous body at the central region.

Three-dimensional network aluminum porous body for current collector, and current collector, electrode, nonaqueous electrolyte battery, capacitor and lithium-ion capacitor, each using aluminum porous body

It is an object of the present invention to provide an electrochemical element which has a high capacity and is low in cost. The electrochemical element of the present invention is an electrochemical element including an electrode for an electrochemical element, wherein a current collector of positive electrode and/or a current collector of negative electrode is a metal porous body having continuous pores and a mixture containing an active material is filled into the continuous pores.

Electrochemical element

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.

Method for producing aluminum film and method for producing aluminum foil

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.

Three-dimensional network aluminum porous body for current collector, electrode using the aluminum porous body, and battery, capacitor and lithium-ion capacitor each using the electrode

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Imizu, Japan

Junichi Nishimura