Abstract: An electrode-separator assembly is provided that can drastically facilitate assembly of a LDH separator-equipped nickel-zinc battery without work, structure, or component for complete separation of a positive-electrode chamber from a negative-electrode chamber. The electrode-separator assembly includes a positive-electrode plate; a negative-electrode plate; a layered double hydroxide (LDH) separator for separation of the positive-electrode plate from the negative-electrode plate; and a resin frame having an opening to which the LDH separator and the positive-electrode plate are fitted or joined. The positive-electrode plate has a smaller face than the negative-electrode plate. The negative-electrode plate has a clearance area that does not overlap with the positive-electrode plate over a predetermined width from the outer peripheral edge of the negative-electrode plate.

Abstract: Provided is a highly reliable nickel-zinc battery including a separator exhibiting hydroxide ion conductivity and water impermeability.

Abstract: Provided is a highly reliable nickel-zinc battery including a separator exhibiting hydroxide ion conductivity and water impermeability. The nickel-zinc battery includes a positive electrode containing nickel hydroxide and/or nickel oxyhydroxide; a positive-electrode electrolytic solution in which the positive electrode is immersed, the electrolytic solution containing an alkali metal hydroxide; a negative electrode containing zinc and/or zinc oxide; a negative-electrode electrolytic solution in which the negative electrode is immersed, the electrolytic solution containing an alkali metal hydroxide; a hermetic container accommodating the positive electrode, the positive-electrode electrolytic solution, the negative electrode, and the negative-electrode electrolytic solution; and the separator exhibiting hydroxide ion conductivity and water impermeability and disposed in the hermetic container so as to separate a positive-electrode chamber from a negative-electrode chamber.

Abstract: Provided is a highly reliable nickel-zinc battery including a separator exhibiting hydroxide ion conductivity and water impermeability. The separator is disposed in a hermetic container to separate a positive-electrode chamber accommodating a positive electrode and a positive-electrode electrolyte from a negative-electrode chamber accommodating a negative electrode and a negative-electrode electrolyte. The positive-electrode chamber has an extra positive-electrode space having a volume that meets a variation in amount of water in association with reaction at the positive electrode during charge and discharge of the battery, and the negative-electrode chamber has an extra negative-electrode space having a volume meeting a variation in amount of water in association with reaction at the negative electrode during charge and discharge of the battery.

Abstract: Provided is a separator structure for use in a zinc secondary battery. The separator structure includes a ceramic separator composed of an inorganic solid electrolyte and having hydroxide ion conductivity and water impermeability, and a peripheral member disposed along the periphery of the ceramic separator and composed of at least one of a resin frame and a resin film. The separator structure exhibits water impermeability as a whole. The separator structure of the present invention can reliably separate the positive electrode side from the negative electrode side in a zinc secondary battery, is readily sealed and bonded to a resin battery container, and exhibits significantly improved handleability during the assembly of the battery.

Abstract: Provided is a highly reliable nickel-zinc battery, which includes a separator exhibiting hydroxide ion conductivity and water impermeability. The separator is disposed in a hermetic container to separate a positive-electrode chamber from a negative-electrode chamber. The positive-electrode chamber has an extra positive-electrode space having a volume that meets part of a variation in amount of water in association with the positive electrode reaction, and the negative-electrode chamber has an extra negative-electrode space having a volume that meets part of a variation in amount of water in association with the negative electrode reaction.

Abstract: Provided is a highly reliable nickel-zinc battery including a separator exhibiting hydroxide ion conductivity and water impermeability. The nickel-zinc battery includes a positive electrode containing nickel hydroxide and/or nickel oxyhydroxide; a positive-electrode electrolytic solution in which the positive electrode is immersed, the electrolytic solution containing an alkali metal hydroxide; a negative electrode containing zinc and/or zinc oxide; a negative-electrode electrolytic solution in which the negative electrode is immersed, the electrolytic solution containing an alkali metal hydroxide; a hermetic container accommodating the positive electrode, the positive-electrode electrolytic solution, the negative electrode, and the negative-electrode electrolytic solution; and the separator exhibiting hydroxide ion conductivity and water impermeability and disposed in the hermetic container so as to separate a positive-electrode chamber from a negative-electrode chamber.

Abstract: Provided is a hydroxide-ion-conductive dense membrane having a He permeability per unit area of 10 cm/min·atm or less. The present invention provides a highly-densified hydroxide-ion-conductive membrane that can significantly reduce permeation of substances other than hydroxide ions (in particular, Zn, which may cause growth of dendritic zinc in a zinc secondary battery) and that is particularly suitable for use in, for example, a separator for a battery (in particular, a zinc secondary battery, which may cause growth of dendritic zinc).

Abstract: Provided is a hydroxide-ion-conductive dense membrane having a He permeability per unit area of 10 cm/min·atm or less. The present invention provides a highly-densified hydroxide-ion-conductive membrane that can significantly reduce permeation of substances other than hydroxide ions (in particular, Zn, which may cause growth of dendritic zinc in a zinc secondary battery) and that is particularly suitable for use in, for example, a separator for a battery (in particular, a zinc secondary battery, which may cause growth of dendritic zinc).

Abstract: There is disclosed an electrode material for cells. The electrode material includes carbon, and a crystalline material composed of a layered double hydroxide and/or a cation-deficit metal oxide having a rock-salt structure. Carbon is complexed with the cation-deficit metal oxide and/or the layered double hydroxide.

Abstract: Provided is a highly reliable nickel-zinc battery including a separator exhibiting hydroxide ion conductivity and water impermeability.

Abstract: There is disclosed an electrode cartridge for use in a hermetic zinc secondary battery comprising a separator structure including a separator exhibiting hydroxide ion conductivity and water impermeability; a counter member liquid-tightly sealed to the separator structure so as to form an internal space and constituting an open-top water impermeable case together with the separator structure; and an electrode that is accommodated in the internal space of the water impermeable case and is a negative electrode containing zinc and/or zinc oxide or a positive electrode. According to the present invention, there is provided an electrode built-in component that can reliably isolate the positive and negative electrodes from each other with a hydroxide ion conductive separator, in the form of an electrode cartridge that is easy to handle and manufacture and that is more advantageous for assembling a stacked-cell battery, while reducing the number of sealing joints.

Abstract: The air electrode for a metal air battery includes carbon nanotubes and an electron conductive material. A content amount of the carbon nanotubes in the air electrode is greater than or equal to 0.1 vol % and less than or equal to 50 vol %. A content amount of the electron conductive material in the air electrode is greater than or equal to 30 vol % and less than or equal to 99 vol %.

Abstract: The present invention provides a unit cell for a nickel-zinc battery in the form of a cell pack having positive and negative electrodes reliably separated by a hydroxide ion-conductive separator, which can be readily handled and is very advantageous for forming an assembled battery. The nickel-zinc cell pack of the invention includes: a flexible bag comprising flexible films; a separation sheet liquid-tightly connected to the interior of the flexible bag to separate a positive-electrode chamber and a negative-electrode chamber for inhibiting liquid communication therebetween; a positive electrode and a positive-electrode electrolytic solution disposed in the positive-electrode chamber; a negative electrode and a negative-electrode electrolytic solution disposed in the negative-electrode chamber, wherein the separation sheet comprises a separator structure comprising a separator exhibiting hydroxide-ion conductivity and water impermeability.

Abstract: The present invention provides a sequential and efficient method of assembling a battery with a desired number of layers while reliably separating positive and negative electrode sides from each other with one or more separator structures. According to the invention, the method of assembling a battery includes stacking one or multiple combinations each comprising a frame and a positive electrode plate to be disposed in a region defined by the frame and one or multiple combinations each comprising a frame and a negative electrode plate to be disposed in a region defined by the frame, once or alternately, such that the positive and adjacent negative electrode plates are separated from each other by a separator structure and the periphery of the separator structure is held between the adjacent frames. The separator structure includes a separator exhibiting hydroxide ion conductivity and water impermeability.

Abstract: Provided is an air electrode or water electrolysis anode showing a higher catalytic activity than carbon black and not having a risk of oxidative degradation, in particular, an air electrode or water electrolysis anode for a metal-air battery or a water electrolysis apparatus. The air electrode or water electrolysis anode includes an electron-conductive material represented by LaNi1?x?yCuxFeyO3?? (where x>0, y>0, x+y<1, and 0???0.4).

Abstract: Provided is a zinc-air secondary battery including an air electrode; a negative electrode containing zinc, a zinc alloy, and/or a zinc compound; an aqueous electrolytic solution in which the negative electrode is immersed; a container having an opening and accommodating the negative electrode and the electrolytic solution; and a separator disposed to cover the opening and having hydroxide ion conductivity, water impermeability, and gas impermeability, the separator being in contact with the electrolytic solution and defining a hermetic space with the container such that the air electrode is separated from the electrolytic solution by the separator through which hydroxide ions pass. The hermetic space has an extra space having a volume that meets a variation in amount of water in association with reaction at the negative electrode during charge and discharge of the battery. The present invention provides a highly reliable zinc-air secondary battery.

Abstract: Provided is a secondary battery including a positive electrode, a negative electrode, an alkaline electrolytic solution, a separator structure exhibiting water impermeability and separating the positive electrode from the negative electrode, and a container accommodating at least the negative electrode and the alkaline electrolytic solution. The separator structure includes a porous substrate-supported ceramic separator, and a reinforcement having a lattice structure having openings and reinforcing the periphery and/or at least one surface of the porous substrate-supported ceramic separator. The porous substrate-supported ceramic separator includes a ceramic separator composed of an inorganic solid electrolyte having hydroxide ion conductivity in the form of a membrane or layer densified enough to have water impermeability, and a porous substrate disposed on at least one surface of the separator.

Abstract: Provided is a battery-equipped device including a substrate, a device disposed on the substrate, an all-solid-state battery disposed such that the planar shape conforms to the periphery of the device on the substrate and at least partially having a complementary outer edge shape that conforms to the entire or a part of the outer edge shape of the device, and interconnections connecting the device and the all-solid-state battery. The all-solid-state battery includes a positive electrode layer containing an oriented polycrystalline positive-electrode active material composed of lithium transition metal oxide particles oriented in a certain direction, a solid electrolyte layer composed of a lithium-ion conductive material, and a negative electrode layer containing a negative-electrode active material. The present invention can provide a battery-equipped device that can significantly increase the degree of freedom of design and can output necessary electric power in a minimum space.

Abstract: Provided is a secondary battery including a hydroxide-ion-conductive ceramic separator. The secondary battery includes a positive electrode; a negative electrode; an alkaline electrolytic solution; a ceramic separator that is composed of a hydroxide-ion-conductive inorganic solid electrolyte and separates the positive electrode from the negative electrode; a porous substrate disposed on at least one surface of the ceramic separator; and a container accommodating at least the negative electrode and the alkaline electrolytic solution, wherein the inorganic solid electrolyte is in the form of a membrane or layer densified enough to have water impermeability, and the porous substrate has a thickness of 100 to 1,800 ?m. According to the secondary battery of the present invention, the thickness and resistance of the ceramic separator are decreased without concern for reduced strength, and a reduction in energy density and an increase in internal resistance are effectively prevented.