Abstract: Provided is a low-cost electrochemical element that has excellent performance, reliability, and durability. Also, provided is a manufacturing method for an electrochemical element including a metal substrate (metal support) and an electrode layer formed on/over the metal substrate. The method includes an electrode layer forming step of forming an electrode layer having a region with a surface roughness of 1.0 ?m or less on/over the metal substrate, and an electrolyte layer forming step of forming an electrolyte layer by spraying aerosolized metal oxide powder onto the electrode layer.

Abstract: As a hydrocarbon production system that synthesizes hydrocarbons using water and carbon dioxide as raw materials, a hydrocarbon production system capable of producing hydrocarbons by securing hydrogen and carbon monoxide required for hydrocarbon synthesis is provided. In a hydrocarbon production system that produces hydrocarbons from at least water and carbon dioxide, the hydrocarbon production system includes at least an electrolytic reaction unit, a reverse water-gas shift reaction unit, and a hydrocarbon synthesis reaction unit.

Abstract: An electrolysis cell unit capable of efficiently electrolyzing water and carbon dioxide is obtained. An electrolysis cell unit includes at least an electrolysis cell in which an electrode layer and a counter electrode layer are formed with an electrolyte layer interposed therebetween and a discharge path for discharging hydrogen generated in the electrode layer, in which the electrolysis cell being formed in a thin layer on a support and a reverse water-gas shift reaction unit that generates carbon monoxide using carbon dioxide and the hydrogen by a reverse water-gas shift reaction being provided in at least a portion of the discharge path.

Abstract: 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.

Abstract: Provided is a solid oxide electrolysis cell in which the electrode layer thereof is prevented from peeling, and that has excellent strength (reliability), durability, and performance. A solid oxide electrolysis cell E includes at least: a first electrode layer 6; a second electrode layer 2; and an electrolyte layer 4 disposed between the first electrode layer 6 and the second electrode layer 2, wherein the first electrode layer 6 has at least a plurality of pores each having an area of 0.75 ?m2 or more in a vertical cross section thereof.

Abstract: 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.

Abstract: 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.

Abstract: A highly efficient fuel cell capable of reasonably and effectively utilizing an internal reforming reaction is obtained even when an anode layer provided in a fuel cell element has a thickness of several tens of micron order. A fuel cell single unit is configured to include a reducing gas supply path for supplying a gas containing hydrogen to an anode layer, a steam supply path for supplying steam generated in a fuel cell element to the reducing gas supply path, and an internal reforming catalyst layer for producing hydrogen from a raw fuel gas by a steam reforming reaction are provided in the fuel cell single unit, and at least one steam supply path is provided on an upstream side of the internal reforming catalyst layer in a flow direction of the reducing gas supplied to the anode layer.

Abstract: 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.

Abstract: A metal support-type fuel cell that has a configuration in which a fuel cell element is supported by a metal support, and is capable of reasonably and effectively utilizing an internal reforming reaction even when an anode layer provided in the fuel cell element has a thickness of several tens of micron order is obtained. A fuel cell element is formed in a thin layer shape on a metal support, an internal reforming catalyst layer for producing hydrogen from a raw fuel gas by a steam reforming reaction is provided in a cell unit, and an internal reformed fuel supply path for discharging steam generated by a power generation reaction from an anode layer to lead the steam to the internal reforming catalyst layer, and leading the produced hydrogen to the anode layer is provided.

Abstract: A metal support for an electrochemical element has a plate shape as a whole, and is provided with a plurality of penetration spaces 1c that pass through the metal support from a front face 1a to a back face. The front face 1a is a face to be provided with an electrode layer. A region of the front face 1a provided 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.

Abstract: 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.

Abstract: A method for manufacturing a metal plate including a rolling step for rolling a metal material provided with a penetration space passing through the metal material in a thickness direction to reduce the thickness of the metal material and reduce the area of a surface opening formed in the surface of the metal material by the penetration space, thereby producing a plate-like metal plate.

Abstract: Provided is a low-cost electrochemical element that has excellent performance, reliability, and durability. Also, provided is a manufacturing method for an electrochemical element including a metal substrate (metal support) and an electrode layer formed on/over the metal substrate. The method includes an electrode layer forming step of forming an electrode layer having a region with a surface roughness of 1.0 ?m or less on/over the metal substrate, and an electrolyte layer forming step of forming an electrolyte layer by spraying aerosolized metal oxide powder onto the electrode layer.

Abstract: An electrochemical module including: a stack obtained by stacking, in a predetermined stacking direction, a plurality of electrochemical elements having a configuration in which an electrode layer, an electrolyte layer, and a counter electrode layer are formed along a substrate, via an annular sealing portion through which first gas that is one of reducing component gas and oxidative component gas flows; a container that includes an upper cover for pressing a first flat face in the stacking direction of the stack and a lower cover for pressing a second flat face on a side opposite to the first flat face, the stack being sandwiched between the upper cover and the lower cover; and a pressing mechanism that presses a portion to which the annular sealing portion is attached against the container in the stacking direction.

Abstract: A reverse water-gas shift catalyst that can be used at high temperatures is obtained. A reverse water-gas shift catalyst (cat1) is produced by executing an impregnation-supporting step of impregnating a carrier (cb1) containing alumina as a main component with nickel as a catalytically active component (ca1) to be supported on the carrier, and calcinating a precursor obtained in the impregnation-supporting step at a temperature of 500° C. or higher.

Abstract: An electrochemical element (Q) has a metal substrate (1) and multiple electrochemical reaction portions. The metal substrate (1) has gas flow allowing regions that allow the flowing of a gas between the upper side (4) and the lower side (5) of the metal substrate (1). 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 (4) of the metal substrate (1). 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).

Abstract: A small-size and light-weight electrochemical module in which, when a stack expands the stack can be clamped appropriately. The electrochemical module includes: an electrochemical element stack obtained by stacking, in a predetermined stacking direction, a plurality of electrochemical elements having a configuration in which an electrolyte layer, and a first electrode and a second electrode that are respectively arranged on two sides of the electrolyte layer, are formed along a substrate; an elastic plate-like member arranged along at least one of a first flat face and a second flat face of the electrochemical element stack; and a clamp that includes a first clamping portion extending along the first flat face and a second clamping portion extending along the second flat face and clamps the electrochemical element stack via the plate-like member.

Abstract: 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.

Abstract: A metal support for an electrochemical element where the metal support includes a plate face, has a plate shape as a whole, and has a warping degree of 1.5×10?2 or less determined by calculating a least square value through the least squares method using at least three points in the plate face of the metal support, calculating a first difference between the least square value and a positive-side maximum displacement value on a positive side with respect to the least square value and a second difference between the least square value and a negative-side maximum displacement value on a negative side that is opposite to the positive side with respect to the least square value, and dividing the sum of the first difference and the second difference by a maximum length of the plate face of the metal support that passes through a center of gravity.