Abstract: Provided is an air electrode/separator assembly including a hydroxide ion conductive separator including a hydroxide ion conductive solid electrolyte; and an air electrode layer having a thickness of 1,000 nm or smaller that is provided on one side of the hydroxide ion conductive separator and that includes a hydroxide ion conductive material, an electron conductive material, and an air electrode catalyst, provided that the hydroxide ion conductive material may be the same material as the hydroxide ion conductive solid electrolyte or the air electrode catalyst, and provided that the electron conductive material may be the same material as the air electrode catalyst.

Abstract: A layered double hydroxide is represented by the following formula (I): Ni2+1?(x+y+z)Fe3+xV3+yCo3+z(OH)2An?(x+y+z)/n·mH2O . . . (I). In one embodiment, in the formula (I), (x+y+z) is from 0.2 to 0.5, “x” represents more than 0 and 0.3 or less, “y” represents from 0.04 to 0.49, and “z” represents more than 0 and 0.2 or less.

Abstract: Provided is an air electrode/separator assembly including: a hydroxide ion conductive dense separator; an interface layer containing a hydroxide ion conductive material and an electron conductive material and covering one side of the hydroxide ion conductive dense separator; and an air electrode layer provided on the interface layer and including an outermost catalyst layer composed of a porous current collector and a layered double hydroxide (LDH) covering a surface thereof. The outermost catalyst layer has a porosity of 60% or more.

Abstract: Provided is an air electrode/separator assembly including: a hydroxide ion conductive separator, an interface layer containing a hydroxide ion conductive material and an electron conductive material and covering one side of the hydroxide ion conductive separator; an air electrode layer provided on the interface layer and including a catalyst layer composed of a porous current collector and a layered double hydroxide (LDH) covering a surface thereof, and a water repellent porous layer covering a surface of the air electrode opposite to the hydroxide ion conductive separator.

Abstract: Provided is an air electrode/separator assembly including a hydroxide ion conductive separator including an inner space, a pair of catalyst layers covering both surfaces of the hydroxide ion conductive separator and containing a catalyst for an air electrode, a hydroxide ion conductive material, and an electron conductive material, a pair of gas diffusion electrodes provided on the pair of catalyst layers on a side opposite to the hydroxide ion conductive separator, and a water absorption/desorption layer provided so as to contact both of the pair of catalyst layers, having water absorbability and desorbability. One of the pair of catalyst layers is a catalyst layer for discharge and the other of the pair of catalyst layers is a catalyst layer for charge; and the hydroxide ion conductive separator, the catalyst layer, and the gas diffusion electrode are arranged vertically, and the water absorption/desorption layer is positioned below the catalyst layer.

Abstract: Provided is an air electrode/separator assembly including a hydroxide ion conductive separator, a catalyst layer including a catalyst for an air electrode, a hydroxide ion conductive material, an electron conductive material, a binder, and a humidity conditioning material and covering one side of the hydroxide ion conductive separator, and a gas diffusion electrode provided on the catalyst layer on a side opposite to the hydroxide ion conductive separator.

Abstract: A layered double hydroxide is represented by the following formula (I): Ni2+1?(x+y+z)Fe3+xV3+yCo3+z(OH)2An?(x+y+z)/n·mH2O . . . (I). In one embodiment, in the formula (I), (x+y+z) is from 0.2 to 0.5, “x” represents more than 0 and 0.3 or less, “y” represents from 0.04 to 0.49, and “z” represents more than 0 and 0.2 or less.

Abstract: Provided is an air electrode/separator assembly including: a hydroxide ion conductive dense separator; an interface layer containing a hydroxide ion conductive material and an electron conductive material and covering one side of the hydroxide ion conductive dense separator; and an air electrode layer provided on the interface layer and including an outermost catalyst layer composed of a porous current collector and a layered double hydroxide (LDH) covering a surface thereof. The outermost catalyst layer has a porosity of 60% or more.

Abstract: Provided is an air electrode/separator assembly including a hydroxide ion conductive dense separator and an air electrode layer provided on one side of the hydroxide ion conductive dense separator. The air electrode layer includes: an internal catalyst layer provided closer to the hydroxide ion conductive dense separator and filled with a mixture containing a hydroxide ion conductive material, an electron conductive material, an organic polymer, and an air electrode catalyst (provided that the hydroxide ion conductive material may be the same material as the air electrode catalyst, and provided that the electron conductive material may be the same material as the air electrode catalyst); and an outermost catalyst layer provided away from the hydroxide ion conductive dense separator having a porosity of 60% or more, composed of a porous current collector and a layered double hydroxide (LDH) covering a surface thereof.

Abstract: Provided is a secondary battery including a positive electrode, a negative electrode, an alkaline electrolytic solution, a separator structure, and a resin container. The separator structure includes a ceramic separator composed of an inorganic solid electrolyte exhibiting hydroxide ion conductivity and optionally a resin frame and/or resin film disposed to surround the periphery of the ceramic separator. The separator structure is bonded to the resin container with an adhesive, and/or the ceramic separator is bonded to the resin frame and/or the resin film with the adhesive. The adhesive is selected from an epoxy resin adhesive, a natural resin adhesive, a modified olefin resin adhesive, and a modified silicone resin adhesive, and the adhesive exhibits a variation in weight of 5% or less after immersed, in a solidified form, in a 9 mol/L aqueous KOH solution at 25° C. for 672 hours.

Abstract: Provided is a secondary battery including a positive electrode, a negative electrode, an alkaline electrolytic solution, a separator structure, and a resin container. The separator structure includes a ceramic separator composed of an inorganic solid electrolyte exhibiting hydroxide ion conductivity and optionally a resin frame and/or resin film disposed to surround the periphery of the ceramic separator. The separator structure is bonded to the resin container with an adhesive, and/or the ceramic separator is bonded to the resin frame and/or the resin film with the adhesive. The adhesive is selected from an epoxy resin adhesive, a natural resin adhesive, a modified olefin resin adhesive, and a modified silicone resin adhesive, and the adhesive exhibits a variation in weight of 5% or less after immersed, in a solidified form, in a 9 mol/L aqueous KOH solution at 25° C. for 672 hours.

Abstract: A bag with a port member according to the present invention includes a bag having an opening and a port member attached to the opening. In addition, the port member has a tubular insertion portion and a bag side connection portion that is connected to a container side connection portion of other container, and the bag is positioned on the innermost circumferential face side of the bag with a port member on an inner face of the insertion portion. According to the bag with a port member, the bag with a port member that can reduce a residual amount of contents to be as small as possible when the contents inside the bag are taken out can be provided.

Abstract: An all-solid-state cell contains at least a positive electrode layer, a solid electrolyte layer, and a negative electrode layer, which are arranged in a stack. The positive electrode layer contains only a positive electrode active material, and a predetermined crystal plane of the positive electrode active material is oriented in a direction of lithium ion conduction. The negative electrode layer contains a carbonaceous material, and the volume ratio of the carbonaceous material to the negative electrode layer is 70% or greater.

Abstract: A bag with a port member according to the present invention includes a bag having an opening and a port member attached to the opening. In addition, the port member has a tubular insertion portion and a bag side connection portion that is connected to a container side connection portion of other container, and the bag is positioned on the innermost circumferential face side of the bag with a port member on an inner face of the insertion portion. According to the bag with a port member, the bag with a port member that can reduce a residual amount of contents to be as small as possible when the contents inside the bag are taken out can be provided.