Abstract: The dye-sensitized solar cell comprises a first electrode including a porous semiconductor layer supporting a dye; and a second electrode serving as a counter electrode of the first electrode. The second electrode includes a counter electrode conductive layer containing an absorbent supporting a dye that is the same as or different from the dye supported by the porous semiconductor layer.

Abstract: An aqueous rechargeable battery includes: a positive electrode including a positive electrode current collector and a positive electrode active material layer provided on a surface of the positive electrode current collector; a negative electrode including a negative electrode current collector and a negative electrode active material layer provided on a surface of the negative electrode current collector; and an aqueous electrolyte solution containing a lithium salt and water. The positive electrode active material layer contains one or more positive electrode active materials and one or more lithium ion-conducting solid electrolytes; and the positive electrode active materials include a lithium transition metal oxide.

Abstract: A positive electrode, a negative electrode containing lithium, and a nonaqueous electrolyte having lithium ion conductivity are installed. The nonaqueous electrolyte contains a nonaqueous solvent and a solute. The positive electrode contains a positive electrode active material containing at least manganese dioxide, a conductive agent, and a binding agent and further contains an oxide and sulfate of a rare-earth element.

Abstract: An optical multiplexer includes: incident surface on which a plurality of incident light beams having different wavelengths are incident; first reflection portion that reflects the plurality of incident light beams; and emission surface that emits a plurality of reflected light beams reflected by the first reflection surface. The incident surface is provided with a plurality of adjacent condenser lenses corresponding to respective incident light beams. The first reflection surface has a plurality of adjacent reflection surfaces that reflect the light beams condensed by the condenser lenses. The plurality of reflection surfaces are respectively disposed so that angle ? formed by the respective reflected light beams reflected by the adjacent reflection surfaces is smaller than angle ? formed by the respective incident light beams condensed by the adjacent condenser lenses.

Abstract: A metal-air battery comprises a casing including a first surface having breathability and second surface different from the first surface; and a positive electrode housed in the casing, a negative electrode housed in the casing, a positive-electrode terminal electrically connected to the positive electrode and exposed from the casing, a negative-electrode terminal electrically connected to the negative electrode and exposed from the casing, and an adhesive layer containing an adhesive and provided on a portion of the second surface.

Abstract: A rechargeable battery including a positive electrode, a negative electrode, and an electrolyte solution is provided. The electrolyte solution contains water and one or more lithium salts, and the lithium salts include lithium fluorophosphate.

Abstract: A positive electrode for a secondary battery includes a positive electrode current collector and a positive electrode active material layer that contains a positive electrode active material particle and that is disposed on the surface of the positive electrode current collector. The positive electrode active material particle includes a positive electrode active material particle, a first coating that contains oxide X of metal element M1 and that is attached to the surface of the positive electrode active material particle, and a second coating having lithium-ion permeability that is attached to the surface of the first coating. The second coating contains oxide Y represented by LixM2Oy (0.5?x<4, 1?y<6), M2 being at least one selected from a group consisting of B, Al, Si, P, S, Ti, V, Zr, Nb, Ta, and La.

Abstract: There are provided a photoelectric conversion element and a photoelectric conversion element module including the photoelectric conversion element, the photoelectric conversion element including a transparent substrate, a first and second transparent conductive layer arranged on the transparent substrate, a photoelectric conversion layer arranged on the first transparent conductive layer, a porous insulating layer covering the photoelectric conversion layer, a reflective layer arranged on the porous insulating layer, and a counter conductive layer that are arranged on the reflective layer, in which the photoelectric conversion layer contains a porous semiconductor, a carrier-transport material, and a photosensitizer, and in which an area of the orthogonal projection of the porous insulating layer onto the transparent substrate and an area of the orthogonal projection of the reflective layer onto the transparent substrate are each larger than an area of the orthogonal projection of the photoelectric conversion

Abstract: A nonaqueous electrolyte includes a lithium salt, a trifluoropropionate ester of the formula (1), and a fluorinated carboxylate ester of the formula (2). The amount of (1) is not less than 10 mass % of the nonaqueous electrolyte. In the formulae, R1 is a C1-3 alkyl group, one or two of X1 to X4 are fluorine atoms, R2 is a hydrogen atom, a C1-3 alkyl group or a fluorinated C1-3 alkyl group, and R3 is a C1-3 alkyl group or a fluorinated C1-3 alkyl group.

Abstract: A lithium primary battery including: a battery case; an electrode group; and a nonaqueous electrolyte; the nonaqueous electrolyte contains a nonaqueous solvent, a solute, and an additive; the electrode group includes a positive electrode, a negative electrode, and a separator interposed therebetween; the negative electrode includes foil composed of metal lithium or a lithium alloy, has a shape extending in a longitudinal direction and a short direction, and provided with a long tape adhered to at least one main surface of the negative electrode along the longitudinal direction thereof; the tape includes a resin substrate and an adhesive layer and has a width of 0.5 to 3 mm; and the additive is a lithium salt represented by the following formula (1): LixMCyOzF? (1?x?2, 0?y?6, 0?z?8, 0???6, and 1?y+z+? are satisfied, and y and z are not simultaneously 0), and the element M includes at least one of phosphorus and boron.

Abstract: An alkaline dry battery includes a battery case, a hollow cylindrical positive electrode accommodated in the battery case, a negative electrode disposed in the hollow portion of the positive electrode, a separator disposed between the positive electrode and the negative electrode, and an electrolytic solution contained in the positive electrode, the negative electrode and the separator. The alkaline dry battery further includes a layer principally including a compound containing a polyoxyethylene group between the positive electrode and the inner surface of the battery case.

Abstract: An alkaline dry battery includes a positive electrode, a negative electrode, a separator disposed between the positive electrode and the negative electrode, and an alkaline electrolytic solution contained in the positive electrode, the negative electrode and the separator. The negative electrode includes a negative electrode active material including zinc, and an additive. The additive includes at least one selected from the group consisting of maleic acid, maleic anhydride and maleate salts.

Abstract: A negative electrode active material for a nonaqueous electrolyte secondary battery includes secondary particles each formed of primary particles bonded to each other, and the primary particles contain carbon material particles and a lithium ion-conductive solid electrolyte which covers the surfaces of the carbon material particles.

Abstract: Light emitted from laser light source is divided by prism into two light flux and light flux corresponding to light emitted from slope and slope. Light flux and light flux are diffused by diffusion plate and diffusion plate to become light flux and light flux. By overlapping light flux and light flux, a radiation distribution with a wide angle and high light intensity can be obtained.

Abstract: The dye-sensitized solar cell comprises a first electrode including a porous semiconductor layer supporting a dye; and a second electrode serving as a counter electrode of the first electrode. The second electrode includes a counter electrode conductive layer containing an absorbent supporting a dye that is the same as or different from the dye supported by the porous semiconductor layer.

Abstract: A positive electrode current collector, a positive electrode active material layer disposed on a surface of the positive electrode current collector, and a first film having lithium-ion permeability are included. The first film contains a lithium-ion permeable oxide X represented by LixM1Oy (0.5?x<4, 1?y<6) and a fluorine-containing compound Y, covers at least part of a surface of the positive electrode active material layer, and partially covers the surface of the positive electrode current collector. The compound Y contains a bond between a metal element M2 and a fluorine element, M1 is at least one selected from the group consisting of B, Al, Si, P, S, Ti, V, Zr, Nb, Ta, and La, and M2 is at least one selected from the group consisting of Li, Na, Al, Mg, and Ca.

Abstract: A light projection lens includes: an inner surface which light emitted from a light source enters, and includes a first concave portion; and an outer surface from which the light exits. In a cross section parallel to an optical axis of the light emitted from the light source, the outer surface and the first concave portion have a difference in radius of curvature in at least a portion of the outer surface and the first concave portion. In a cross section perpendicular to the optical axis of the light emitted from the light source, the first concave portion has an elliptical shape. The light which exits from the outer surface is lesser in amount in an optical axis direction of the light emitted from the light source than in a direction different from the optical axis direction.

Abstract: The dye-sensitized solar cell comprises a first electrode including a porous semiconductor layer supporting a dye, a second electrode serving as the counter electrode of the first electrode, and an electrolytic solution filled between the first electrode and the second electrode. The second electrode includes a counter electrode conductive layer containing carbon microparticles and supporting a dye that is the same as that supported by the porous semiconductor layer.