Abstract: A battery includes: a unit cell including an electrode layer, a counter electrode layer, and a solid electrolyte layer; an electrode current collector; an electrode current collector; a counter electrode current collector; and a seal disposed between the electrode current collector and the counter electrode current collector. The thickness of a first stack portion is larger than the thickness of a second stack portion. The first stack portion includes: a first sealing portion that is at least part of the seal; a part of the electrode current collector that overlaps the first sealing portion; and a part of the counter electrode current collector that overlaps the first sealing portion. The second stack portion includes: the unit cell; a part of the electrode current collector that overlaps the unit cell; and a part of the counter electrode current collector that overlaps the unit cell.

Abstract: A battery includes a unit cell, which includes an electrode layer and a counter electrode layer facing the electrode layer, an electrode current collector in contact with the electrode layer, a counter electrode current collector in contact with the counter electrode layer, and a seal between the electrode current collector and the counter electrode current collector. The unit cell is disposed between the electrode current collector and the counter electrode current collector. At least one selected from the group consisting of the electrode current collector and the counter electrode current collector has at least one recess facing the seal.

Abstract: There is provided a display device having an electrochromic element placed in the display device. The electrochromic element has: a light transmittance of 70% or more and a light reflectance of 20% or less at a central wavelength of a visible spectrum when in a transparent state; and a light reflectance of 65% or more at the central wavelength of the visible spectrum when in a mirror state. By this, the display device is not only highly effective in terms of light-shielding, heat blocking, screening, etc., but is also switchable between a transmissive type and a reflective type.

Abstract: A battery includes a first insulator, a first electrode layer, and a first counter-electrode layer. The first counter-electrode layer is a counter electrode for the first electrode layer. The first insulator includes a first electrolyte portion, a second electrolyte portion, and a first bent portion. The first bent portion is positioned between the first electrolyte portion and the second electrolyte portion. The first electrode layer is disposed in contact with the first electrolyte portion. The first counter-electrode layer is disposed in contact with the second electrolyte portion. The first insulator is bent at the first bent portion, and thereby the first electrode layer and the first counter-electrode layer are positioned facing each other.

Abstract: A battery includes a first insulator, a first electrode layer, and a first counter-electrode layer. The first counter-electrode layer is a counter electrode for the first electrode layer. The first insulator includes a first electrolyte portion, a second electrolyte portion, and a first bent portion. The first bent portion is positioned between the first electrolyte portion and the second electrolyte portion. The first electrode layer is disposed in contact with the first electrolyte portion. The first counter-electrode layer is disposed in contact with the second electrolyte portion. The first insulator is bent at the first bent portion, and thereby the first electrode layer and the first counter-electrode layer are positioned facing each other.

Abstract: A battery includes a unit cell, which includes an electrode layer and a counter electrode layer facing the electrode layer, an electrode current collector in contact with the electrode layer, a counter electrode current collector in contact with the counter electrode layer, and a seal between the electrode current collector and the counter electrode current collector. The unit cell is disposed between the electrode current collector and the counter electrode current collector. At least one selected from the group consisting of the electrode current collector and the counter electrode current collector has at least one recess facing the seal.

Abstract: A battery module includes a first liquid battery module and a first solid battery module. The first solid-state battery module has a larger volume than a volume of the first liquid battery module.

Abstract: A battery includes: a unit cell including an electrode layer, a counter electrode layer facing the electrode layer, and a solid electrolyte layer disposed between the electrode layer and the counter electrode layer; an electrode current collector in contact with the electrode layer; a counter electrode current collector in contact with the counter electrode layer; and a seal disposed between the electrode current collector and the counter electrode current collector. The unit cell is disposed between the electrode current collector and the counter electrode current collector. The seal includes at least one protrusion protruding toward the solid electrolyte layer, and at least part of the at least one protrusion is in contact with the solid electrolyte layer.

Abstract: A battery includes: a unit cell including an electrode layer, a counter electrode layer, and a solid electrolyte layer; an electrode current collector; an electrode current collector; a counter electrode current collector; and a seal disposed between the electrode current collector and the counter electrode current collector. The thickness of a first stack portion is larger than the thickness of a second stack portion. The first stack portion includes: a first sealing portion that is at least part of the seal; a part of the electrode current collector that overlaps the first sealing portion; and a part of the counter electrode current collector that overlaps the first sealing portion. The second stack portion includes: the unit cell; a part of the electrode current collector that overlaps the unit cell; and a part of the counter electrode current collector that overlaps the unit cell.

Abstract: A battery includes an electricity-generating element that includes an electrode layer and a counter-electrode layer, an electrode current collector that is disposed in contact with the electrode layer, a counter-electrode current collector that is disposed in contact with the counter-electrode layer, and a first sealing section that includes a first portion and a second portion. In the battery, the first portion is positioned within an opposing region where the electrode current collector and the counter-electrode current collector oppose each other and is in contact with the electrode current collector and the counter-electrode current collector. In addition, the second portion is positioned outside the opposing region, and the second portion is positioned outside both an edge of the electrode current collector and an edge of the counter-electrode current collector.

Abstract: A battery includes an electrode layer, a counter electrode layer, and a solid electrolyte layer between the electrode layer and the counter electrode layer. The solid electrolyte layer has a first region containing a first solid electrolyte material and a second region containing a second solid electrolyte material. The first region is within a region where the electrode layer and the counter electrode layer face each other. With respect to the first region, the second region is positioned on an outer peripheral side of the region where the electrode layer and the counter electrode layer face each other, and is in contact with the first region. A second density, which is the density of the second solid electrolyte material in the second region, is higher than a first density, which is the density of the first solid electrolyte material in the first region.

Abstract: A battery includes a first insulator, a first electrode layer, and a first counter-electrode layer. The first counter-electrode layer is a counter electrode for the first electrode layer. The first insulator includes a first electrolyte portion, a second electrolyte portion, and a first bent portion. The first bent portion is positioned between the first electrolyte portion and the second electrolyte portion. The first electrode layer is disposed in contact with the first electrolyte portion. The first counter-electrode layer is disposed in contact with the second electrolyte portion. The first insulator is bent at the first bent portion, and thereby the first electrode layer and the first counter-electrode layer are positioned facing each other.

Abstract: A battery module includes a first liquid battery and a first solid battery. The first liquid battery is a unit cell. The first solid battery is a unit cell that has a larger volume than a volume of the first liquid battery.

Abstract: An organic electroluminescence (EL) device whose organic EL layer is less likely exposed to moisture. The organic EL device includes an organic EL layer; and a hygroscopic layer disposed with respect to at least one main surface of the organic EL layer. The hygroscopic layer includes: a hygroscopic film containing a base material and a hygroscopic agent mixed in the base material; and a pair of covering films each covering a different one of surfaces of the hygroscopic film in a thickness direction of the hygroscopic film. A region of the hygroscopic film that is in contact with one covering film whose distance from the organic EL layer is smaller than a distance of the other covering film from the organic EL layer contains the hygroscopic agent at a content rate lower than an average content rate of the hygroscopic agent in the hygroscopic film.

Abstract: An organic EL device includes: an organic EL layer; and a hygroscopic layer that is disposed above and/or below the organic EL layer, and has a hygroscopic film, a first covering film, and a second covering film, the first covering film covering one of main surfaces of the hygroscopic film, the second covering film covering the other main surface of the hygroscopic film, wherein a relational expression A/B?0.2 is satisfied, where A denotes hygroscopicity indicating mass of moisture, expressed in g/m2, that is absorbable by the hygroscopic film per unit of area, and B denotes the number of defects per unit of area, expressed in pieces/mm2, that is calculated based on the number of defects in each of the first covering film and the second covering film.

Abstract: An organic electroluminescence (EL) device whose organic EL layer is less likely exposed to moisture. The organic EL device includes an organic EL layer; and a hygroscopic layer disposed with respect to at least one main surface of the organic EL layer. The hygroscopic layer includes: a hygroscopic film containing a base material and a hygroscopic agent mixed in the base material; and a pair of covering films each covering a different one of surfaces of the hygroscopic film in a thickness direction of the hygroscopic film. A region of the hygroscopic film that is in contact with one covering film whose distance from the organic EL layer is smaller than a distance of the other covering film from the organic EL layer contains the hygroscopic agent at a content rate lower than an average content rate of the hygroscopic agent in the hygroscopic film.

Abstract: A moisture sorption film including: a film of base material; zeolite grains dispersed in the film of base material, having an average diameter of 100 nm or smaller, and having a maximum moisture sorption ratio of 10 wt % or greater. The moisture sorption film has a thickness of 500 nm or greater and contains the zeolite grains at an amount of 0.13 g/cm3 or greater.

Abstract: An organic EL device includes: an organic EL layer; and a hygroscopic layer that is disposed above and/or below the organic EL layer, and has a hygroscopic film, a first covering film, and a second covering film, the first covering film covering one of main surfaces of the hygroscopic film, the second covering film covering the other main surface of the hygroscopic film, wherein a relational expression A/B?0.2 is satisfied, where A denotes hygroscopicity indicating mass of moisture, expressed in g/m2, that is absorbable by the hygroscopic film per unit of area, and B denotes the number of defects per unit of area, expressed in pieces/mm2, that is calculated based on the number of defects in each of the first covering film and the second covering film.

Abstract: There is provided a display device having an electrochromic element placed in the display device. The electrochromic element has: a light transmittance of 70% or more and a light reflectance of 20% or less at a central wavelength of a visible spectrum when in a transparent state; and a light reflectance of 65% or more at the central wavelength of the visible spectrum when in a mirror state. By this, the display device is not only highly effective in terms of light-shielding, heat blocking, screening, etc., but is also switchable between a transmissive type and a reflective type.

Abstract: Expanded composite polystyrene-based resin particles having a plurality of cells and cell membranes separating the plurality of cells, said cell membranes including a polystyrene-based resin forming a continuous phase and polyacrylic acid alkyl ester-based resin fine particles dispersed in said continuous phase to form a dispersed phase, and said polystyrene-based resin being complexed with said polyacrylic acid alkyl ester-based resin fine particles, wherein said dispersed phase is present in the form of a plurality of layers in a cell membrane thickness direction in a cell membrane cross-section of said expanded composite polystyrene-based resin particles.