Osaka Gas Company Limited

Liquid Gas Co., Ltd.

Other

Fuji Electric Co., Ltd.

National Institute of Advanced Industrial Science and Technology

Mitsubishi Denki K.k.

Noritsu Koki Co., Ltd.

International Superconductivity Technology Center

Figaro Engineering Inc.

Hisao Ohnishi

Mitsuaki Echigo

Kazuyuki Minami

Osamu Yamazaki

Yuji Tsuda

Kyohei Manabe

Masamichi Ippommatsu

Shuzo Kudo

Minoru Suzuki

Shoji Otoshi

Akira Hirano

Hirokazu Sasaki

Masashi Nishigaki

Tsuyoshi Tsurutani

Atsushi Nonaka

Masahide Tsujishita

Takuya Suzuki

Naoyoshi Murata

Hisashi Sakai

Makoto Okamura

Tsuyoshi Kamioka

Katsuki Higaki

Tomohiro Inoue

Shoji Tanaka

Jun Akedo

Toshio Suzuki

Osamu Okada

Hisao Yamauchi

Akio Nakashiba

Masamichi Ipponmatsu

Norihisa Shinke

Tetsuya Mori

Hidemasa Nonaka

Yuki Kato

Mitsunobu Wakata

Kimio Ishimaru

Tadayuki Sogi

Masahiro Koga

Horikazu Sasaki

Hideaki Kawahara

Yosuke Nagasawa

Soichi Tabata

Satoshi Takano

Toshiro Nakayama

In a metal support mostly used for a metal-supported solid oxide fuel cell (SOFC), a SOFC system that improves the power generation efficiency by allowing a gas to smoothly flow into or flow out from the through-holes is achieved. A metal support is formed in a plate shape as a whole and has a plurality of through-holes penetrating from a front surface on which an electrode layer is provided to a back surface, and the metal support has inclined through-holes, as the through-holes each of which has a central axis inclined with respect to a thickness direction.

Metal support, electrochemical element, electrochemical module, electrochemical device, energy system, solid oxide fuel cell, solid oxide electrolysis cell, and method for producing metal support

An electrochemical element including a conductive plate-like support provided with an internal passage therein. The plate-like support includes, in at least a portion of a metal support included in the plate-like support: a gas-permeable portion through which gas is permeable between the internal passage, which is located inside the plate-like support, and the outside; and an electrochemical reaction portion that entirely or partially covers the gas-permeable portion and includes at least a film-like electrode layer, a film-like electrolyte layer, and a film-like counter electrode layer in the stated order. The plate-like support is provided with a plurality of passages in the internal passage.

Electrochemical element, electrochemical module, electrochemical device, and energy system

In the electrochemical element, a plate-like support includes an internal passage through which a first gas flows, a gas-permeable portion, and an electrochemical reaction portion in which a film-like electrode layer, a film-like electrolyte layer, and a film-like counter electrode layer are stacked so as to entirely or partially cover the gas-permeable portion. The internal passage includes a plurality of auxiliary passages through which the first gas flows in a predetermined flowing direction, and a distribution portion provided on the upstream side of the plurality of auxiliary passages in the flowing direction of the first gas. The plate-like support includes a supply structure that is located between the distribution portion and the auxiliary passages in the flowing direction. The first gas is temporarily stored in the distribution portion and supply of the first gas from the distribution portion to the plurality of auxiliary passages is limited.

An electrochemical element stack that includes a plurality of stacked electrochemical elements, each of the electrochemical elements including a plate-like support provided with an internal passage. The plate-like support includes: a gas-permeable portion through which gas passes between the internal passage located inside the plate-like support and the outside; an electrochemical reaction portion covering the gas-permeable portion; and a first penetrated portion forming a supply passage through which fuel gas flows from the outside of the plate-like support to the internal passage. The plate-like supports of two adjacent electrochemical elements are opposed, an outer face of the first electrochemical element on which the electrochemical reaction portion is arranged is electrically connected to an outer face of the second electrochemical element on which the electrochemical reaction portion is not arranged, and a flowing portion through which air flows along the two adjacent outer faces is formed between the two outer faces.

Electrochemical element stack, electrochemical element, electrochemical module, electrochemical device, and energy system

A metal support for an electrochemical element has a plate shape as a whole, and is provided with a plurality of penetration spacesthat pass through the metal support from a front faceto a back face. The front faceis a face to be provided with an electrode layer. A region of the front faceprovided with the penetration spaces is a hole region, and openings of the penetration spaces formed in the front face are front-side openings. An aperture ratio that is a ratio of the front-side openings to the hole region is 0.1% or more and 7.0% or less.

Metal support for electrochemical element, electrochemical element, electrochemical module, electrochemical device, energy system, solid oxide fuel cell, solid oxide electrolytic cell, and method for manufacturing metal support

Provided is an alloy material including a metal oxide thin layer that can be formed using a simple method at low cost and can further suppress volatilization of Cr, which causes deterioration of a fuel cell, compared with a case where conventional expensive materials are used. Disclosed is a manufacturing method for an alloy material including a coating treatment step for coating a substrate made of a Fe—Cr based alloy with Co, and an oxidation treatment step for performing oxidation treatment on the substrate in a moisture-containing atmosphere after the coating treatment step.

Manufacturing method for alloy material, alloy material, electrochemical element, electrochemical module, electrochemical device, energy system and solid oxide fuel cell

An electrochemical element (Q) has a metal substrate () and multiple electrochemical reaction portions. The metal substrate () has gas flow allowing regions that allow the flowing of a gas between the upper side () and the lower side () of the metal substrate (). The electrochemical reaction portions each have at least an electrode layer (A), an electrolyte layer (B), and a counter electrode layer (C), and are arranged on the upper side () of the metal substrate (). The electrolyte layer (B) is arranged between the electrode layer (A) and the counter electrode layer (C), and the gas flowing through the gas flow allowing regions is supplied to the electrode layer (A).

An electrochemical element including a plate-like support provided with an internal passage therein. The plate-like support includes a gas-permeable portion through which gas is permeable between the internal passage and the outside of the plate-like support and an electrochemical reaction portion that is formed by stacking at least a film-like electrode layer, a film-like electrolyte layer, and a film-like counter electrode layer in the stated order in a predetermined stacking direction on an outer face of the plate-like support so as to entirely or partially cover the gas-permeable portion. A first gas, that is one of reducing component gas and oxidative component gas, flows through the internal passage, and the internal passage is provided with a turbulence forming body that forms a turbulence state of the first gas.

Electrochemical element, electrochemical element stack, electrochemical module, electrochemical device, and energy system

Provided is an alloy material including a metal oxide thin layer that can be formed using a simple method at low cost and can further suppress volatilization of Cr, which causes deterioration of a fuel cell, compared with a case where conventional expensive materials are used. Disclosed is a manufacturing method for an alloy material including a coating treatment step for coating a substrate made of a Fe&#x2014;Cr based alloy with Co, and an oxidation treatment step for performing oxidation treatment on the substrate in a moisture-containing atmosphere after the coating treatment step.

Provided are a metal plate configured such that sufficient strength and performance are ensured and the workability and cost of mass production are improved, and an electrochemical element and the like including the metal plate. A metal plateincludes a thick portion, and a thin portionthat is thinner than the thick portion. The thin portionis provided with a penetration spacepassing through the thin portionin the thickness direction.

Metal plate, electrochemical element, electrochemical module, electrochemical device, energy system, solid oxide fuel cell, and method for manufacturing metal plate

Provided is a low-cost electrochemical element that includes a high-performance electrode layer. The electrochemical element includes an electrode layer, and the electrode layer contains small particles and large particles. The small particles have a particle diameter of 200 nm or less in the electrode layer, and the large particles have a particle diameter of 500 nm or more in the electrode layer.

Electrochemical element, electrochemical module, solid oxide fuel cell and manufacturing method

A metal support for an electrochemical element has a plate shape as a whole, and is provided with a plurality of penetration spaces that pass through the metal support from a front face to a back face. The front face is a face to be provided with an electrode layer. Each of front-side openings that are openings of the penetration spaces formed in the front face has an area of 3.0&#xd7;10mmor more and 3.0&#xd7;10mmor less.

Provided are an electrochemical element and the like that have both durability and high performance as well as excellent reliability. The electrochemical element includes a metal support, and an electrode layer formed on/over the metal support. The metal support is made of any one of a Fe&#x2014;Cr based alloy that contains Ti in an amount of 0.15 mass % or more and 1.0 mass % or less, a Fe&#x2014;Cr based alloy that contains Zr in an amount of 0.15 mass % or more and 1.0 mass % or less, and a Fe&#x2014;Cr based alloy that contains Ti and Zr, a total content of Ti and Zr being 0.15 mass % or more and 1.0 mass % or less.

Electrochemical element, electrochemical module, electrochemical device, energy system, solid oxide fuel cell and manufacturing method for electrochemical element

Provided are a low-cost electrochemical device and the like that have both durability and high performance as well as excellent reliability. The electrochemical device includes at least one metal material, and the metal material is made of a Fe&#x2014;Cr alloy that contains Ti in an amount of more than 0.10 mass % and 1.0 mass % or less.

Electrochemical device, energy system and solid oxide fuel cell

Realized is an element having an electrolyte layer that is dense and has high gas barrier characteristics. A metal-supported electrochemical element includes at least a metal substrate as a support, an electrode layer formed on/over the metal substrate, a buffer layer formed on the electrode layer, and an electrolyte layer formed on the buffer layer. The electrode layer is porous and the electrolyte layer is dense. The buffer layer has density higher than density of the electrode layer and lower than density of the electrolyte layer.

Metal-supported electrochemical element, solid oxide fuel cell and method of manufacturing such metal-supported electrochemical element

Growing community of inventors

Osaka, Japan

Hisao Ohnishi