Abstract: An electrode structure includes a first electrode unit, a second electrode unit and a first insulating frame, in which the electrode units are adjacent to each other. The first insulating unit has an airflow space therein and includes an electrically conducive base with an airflow plane and an air cell cathode disposed on an outer surface of the airflow plane. The second insulating unit includes an electrically conductive base and an air cell anode disposed on an outer surface of the electrically conductive base. The first insulating frame spaces and joins the adjacent electrode units to each other such that the air cell cathode and the air cell anode of the adjacent electrode units are opposed to each other. The first insulating frame together with the adjacent electrode units forms an electrolytic solution container.

Abstract: An air cell includes a positive electrode layer, an electrolyte layer stacked on the positive electrode layer, a negative electrode layer stacked on the electrolyte layer and an electroconductive liquid-tight ventilation layer stacked on the positive electrode layer, the electroconductive liquid-tight ventilation layer being positioned on the opposite side of the positive electrode from the electrolyte layer. The assembled battery is provided with a plurality of the air cells described above. The assembled battery is provided with a flow path through which oxygen-containing gas flows interposed between the electrically-conductive liquid-tight ventilation layer of a first air cell and the negative electrode layer of a second air cell adjacent to the first air cell. The first air cell is electrically connected to the negative electrode layer of the second air cell via the electrically-conductive liquid-tight ventilation layer.

Abstract: Provided are a liquid activated air battery and an assembled liquid activated air battery, which can be reduced in size, as well as a method of using the liquid activated air battery and the assembled liquid activated air battery. The liquid activated air battery includes: an electrode assembly comprising a cathode and an anode; and a space that serves as a liquid container to store a liquid component of an electrolyte of the air battery before injection and also serves as a gas flowing member through which oxygen-containing gas of an active material of the air battery flows after injection. The assembled liquid activated air battery includes a plurality of the liquid activated air battery.

Abstract: In air cells which are stacked on one another and used as an assembled battery, an electrolytic solution layer is formed between a positive electrode material and a negative electrode material, and one or two or more deformation prevention materials are arranged for preventing deformation by abutting the positive electrode material or the negative electrode material or abutting both of them.

Abstract: In an air battery system, a decrease in power output and an increase in inner pressure during discharge are prevented even when deposition of the reaction product increases with the discharge and the volume of the electrolytic solution increases with progress of the reaction. The air battery system includes an air battery a reservoir tank to reserve electrolytic solution to be supplied to the air battery and a reaction product sump to store reaction product produced in the air battery, the reaction product sump provided between the air battery and the reservoir tank.

Abstract: The present invention is an air battery B1 in which a cathode assembly 40, including a porous cathode layer 41, and an anode assembly 30 are disposed on mutually opposite sides of an electrolytic solution layer ?. It includes an electrically conductive cathode support plate 42 that supports the porous cathode layer 41 and includes a ventilation area, wherein the porous cathode layer 41 covers the ventilation area and further extends to a non-ventilation area outside the ventilation area, and includes a dense portion 41a at an outer edge part facing the non-ventilation area.

Abstract: An air battery has a cathode layer, an anode layer and an electrolyte layer interposed between the cathode and anode layers. At least one of the cathode and anode layers has a passage forming member such that, when the air battery is adjacently stacked to another air battery, the passage forming member is situated between the air battery and the adjacent air battery so as to form an air passage to cathode layer. The passage forming member has conductivity and the ability to be elastically deformed according to expansion of the electrolyte layer. It is possible by this structure to, when there occurs increase in internal resistance due to expansion of the electrolyte layer, compensate such increase in internal resistance by decrease in contact resistance, maintain the cross-sectional area of the air passage at a predetermined size and prevent decrease in the output of the air battery.

Abstract: An air cell includes a positive electrode and a negative electrode, and an outer frame member located at outer peripheries of the positive electrode and the negative electrode. The positive electrode and the outer frame member are integrally joined together. An assembled battery includes a plurality of air cells, the air cells being stacked on top of each other. This configuration can increase mechanical strength and improve sealing performance for an electrolysis solution in the positive electrode. In addition, a reduction in thickness of the entire air cell can be achieved so that the assembled battery suitable for use in a vehicle can be provided.

Abstract: A positive electrode (10) for an air cell of the present invention includes: a catalyst layer (11) composed of a porous layer containing electrical conductive carbon (1), a binder (2), and a catalyst component (3); and a fluid-tight gas-permeable layer (12) composed of a porous layer containing an electrical conductive carbon (1a) and a binder (2). The fluid-tight gas-permeable layer is stacked on the catalyst layer. This configuration can facilitate series connection of the air cells while preventing electrolysis solution from leaking out of a positive electrode. It is therefore possible to enhance the manufacturing efficiency and handleability of the air cells.

Abstract: An air cell includes a plurality of electrode structures each including a filling chamber for an electrolyte liquid interposed between an air electrode and a metal negative electrode; an electrode housing portion individually housing the plural electrode structures; and a liquid supply unit which supplies the electrolyte liquid to the plural electrode structures. The electrode housing portion includes a plurality of liquid injection holes to inject the electrolyte liquid into the filling chambers of the respective electrode structures and a plurality of liquid junction prevention portions each dividing a space between the liquid injection holes adjacent to each other. The liquid supply unit includes a liquid injection device allowing the electrolyte liquid to flow into the plural liquid injection holes.

Abstract: An air battery for use by being stacked in a battery pack has a cathode constituting member and an anode material adapted such that at least a part of the anode material is brought into direct contact with a cathode constituting member of another air battery. In this configuration, it is possible to eliminate the need to use an anode cap for sealing on the anode side and thereby possible to achieve not only reduction in weight and size but also reduction in cost.

Abstract: An air cell includes a positive electrode layer, an electrolyte layer stacked on the positive electrode layer, a negative electrode layer stacked on the electrolyte layer and an electroconductive liquid-tight ventilation layer stacked on the positive electrode layer, the electroconductive liquid-tight ventilation layer being positioned on the opposite side of the positive electrode from the electrolyte layer. The assembled battery is provided with a plurality of the air cells described above. The assembled battery is provided with a flow path through which oxygen-containing gas flows interposed between the electrically-conductive liquid-tight ventilation layer of a first air cell and the negative electrode layer of a second air cell adjacent to the first air cell. The first air cell is electrically connected to the negative electrode layer of the second air cell via the electrically-conductive liquid-tight ventilation layer.

Abstract: An air battery includes a cathode layer and an anode layer sandwiching an electrolyte layer, and an electrically insulative outer case. The cathode layer has a cathode member, a cathode current collector and a liquid tight/gas permeable member. The cathode layer is provided with a contact member between the outer case and the cathode layer, in which the inner end thereof is in contact with the periphery of the cathode current collector, and the outer end thereof is exposed on a cathode-side surface. The outer end of the contact member protrudes outward with respect to a surface of the liquid tight/gas permeable member to an extent reaching at least a plane including an end face of the outer case. Therefore, this air battery can be directly connected to another battery in series, and is suitable for an on-vehicle power source.

Abstract: A liquid activated air battery includes: an electrode assembly that includes an air electrode and a metal anode; a battery container that is capable of holding the electrode assembly and electrolytic solution; a supply tank for the electrolytic solution to be supplied to the battery container; a drainage tank for the electrolytic solution discharged from the battery container; and pumps as an electrolytic solution flow mechanism that runs the electrolytic solution from the supply tank to the drainage tank through the battery container. The composition of the electrolytic solution supplied to the battery container is kept constant, and stable power output is ensured.

Abstract: Provided are a liquid activated air battery and an assembled liquid activated air battery, which can be reduced in size, as well as a method of using the liquid activated air battery and the assembled liquid activated air battery. The liquid activated air battery includes: an electrode assembly comprising a cathode and an anode; and a space that serves as a liquid container to store a liquid component of an electrolyte of the air battery before injection and also serves as a gas flowing member through which oxygen-containing gas of an active material of the air battery flows after injection. The assembled liquid activated air battery includes a plurality of the liquid activated air battery.

Abstract: A composite electrode for an electricity storage device of the present invention includes: a substrate; a whisker or a fiber which is made of at least one of a metal and a metal compound and is formed on the substrate; and a coating layer which contains an active material and is formed on at least a part of a surface of the whisker or the fiber.

Abstract: An electrode for an electricity storage device (10) of the present invention includes a porous layer (1) having either fibers or whiskers (1a) containing tungsten oxide. A valence band photoelectron spectrum of the fibers or whiskers (1a) obtained by an X-ray photoelectron spectroscopic analysis has a peak within 1 eV from a Fermi level of the tungsten oxide.

Abstract: A composite electrode for an electricity storage device of the present invention includes: a substrate; a whisker or a fiber which is made of at least one of a metal and a metal compound and is formed on the substrate; and a coating layer which contains an active material and is formed on at least a part of a surface of the whisker or the fiber.