Abstract: Provided is a gas adsorption sheet for a secondary battery, which contains gas adsorbent particles excellent in gas adsorption property, and allows the gas adsorption performance of the gas adsorbent particles to be sufficiently exhibited. According to one embodiment of the present invention, there is provided a gas adsorption sheet for a secondary battery, including: a heat-resistant base material; and a gas adsorption layer arranged on at least one surface of the heat-resistant base material, wherein the gas adsorption layer contains: a binder resin; and gas adsorbent particles each of which is formed of an inorganic porous material having pores, and is capable of adsorbing a gas.

Abstract: A lithium ion battery comprises a positive electrode terminal and a negative electrode terminal, a battery case, and an electrode body housed inside the battery case. The electrode body has a positive electrode current collector and a positive-electrode electrode plate and a negative electrode current collector and a negative-electrode electrode plate, and has a structure in which the positive-electrode electrode plate and the negative-electrode electrode plate are laminated via a separator. A carbon-based porous material in a battery case has a methane gas absorption capacity and preferably has a carbon dioxide gas absorption capacity and has a pore volume of 0.3 mL/g or less, for pores having a pore size of 4.5 ? or more. Such a gas absorber for a lithium ion battery generates no gas from reaction with an electrolytic solution of the lithium ion battery and can suitably absorb methane gas generated at the time of abnormality.

Abstract: A lithium ion battery includes a positive electrode terminal, a negative electrode terminal, and a battery case, which is an airtight container. An electrode body is housed inside the battery case. The electrode body has a positive electrode current collector, a positive-electrode electrode plate, a negative electrode current collector, and a negative-electrode electrode plated. The positive-electrode electrode plate and the negative-electrode electrode plated are laminated via a separator. A hydrofluoric acid absorber is placed in a gap portion in the battery case. This hydrofluoric acid absorber preferably is one having a moisture removal capability, such as zeolite. A lithium ion battery using such a hydrofluoric acid absorber has excellent hydrofluoric acid absorption properties, and in particular can suppress the production per se of hydrofluoric acid.

Abstract: As an electrolyte for a lithium ion battery, there is used one in which an inorganic adsorbent is dispersed in a non-aqueous electrolyte. The non-aqueous electrolyte is one having lithium ion conductivity, preferably a mixed solution of a cyclic carbonate such as propylene carbonate (PC) and ethylene carbonate (EC), and a chain carbonate such as dimethyl carbonate (DMC), ethyl methyl carbonate (EMC), diethyl carbonate (DEC) and the like. This solution may optionally be a solution in which a lithium salt, such as lithium hexafluorophosphate or the like, is dissolved as an electrolyte. The inorganic adsorbent to be dispersed in the non-aqueous electrolyte is preferably a Ca-exchanged A-type zeolite or an activated carbon. Such an electrolyte for a lithium ion battery is suitably used for a non-aqueous electrolyte secondary battery such as a lithium ion battery and is capable of highly maintaining the capability of absorbing moisture and gases.

Abstract: A lithium ion battery E comprises a positive electrode terminal, a negative electrode terminal, and a battery case, which is an airtight container, and an electrode body is accommodated inside the battery case. The electrode body has a positive electrode current collector, a positive-electrode electrode plate, a negative electrode current collector, and a negative-electrode electrode plate, and the positive-electrode electrode plate and the negative-electrode electrode plate form a laminated structure via a separator. Further, a metal ion removal agent is placed in a gap portion in the battery case. The metal ion removal agent has a transition metal ion adsorption capability, and preferably has a moisture removal capability, and is preferably made of a zeolite, in particular, an A-type zeolite ion-exchanged with Ca. Such a lithium ion battery is capable of capturing transition metal ions dissolved from a positive electrode active material, which improves battery lifetime properties.

Abstract: A nonaqueous electrolytic solution lithium ion battery comprises a positive electrode terminal, a negative electrode terminal and a battery case, and an electrode body is contained within the battery case. The electrode body comprises a positive electrode collector, an electrode plate for positive electrodes, a negative electrode collector and an electrode plate for negative electrodes. The electrode plate for positive electrodes and the electrode plate for negative electrodes are laminated with a separator being interposed therebetween. A CO and CO2 adsorbent is disposed within the battery case of this lithium ion battery. A lithium ion battery according to the present invention is capable of reducing deformation of an airtight container accompanying increase of the internal pressure due to a gas component such as CO or CO2, which is generated within the battery at the time of abnormality or during a long period of use.

Abstract: A metal electrolytic capacitor capable of quickly absorbing and immobilizing a belching vapor of a driving electrolyte and widely reducing leakage when an explosion-proof valve operates. An aluminum electrolytic capacitor body is configured by housing a capacitor element in a cylindrical aluminum case, a pair of leads extend from the capacitor body, an explosion-proof valve. is formed on a top panel portion of the metal case, a cylindrical cap as a casing is attached from above to the capacitor body, a plurality of small openings are formed on a top panel portion (bottom portion) of the cap, and an absorbent or a mixture of an absorbent and a water molecular compound wrapped in a permeable fiber material, such as unwoven fabric and filter paper, is placed in a space between the cap and the top panel portion of the capacitor body.

Abstract: A fuel cartridge has a pair of flat faces in which holes are formed. A net is stretched within the holes, and solid methanol is packed inside the fuel cartridge. A fuel cell unit, shaped as a flat box, comprises a pair of flat wall portions, a pair of long-side wall portions, and a pair of short-side wall portions. Each flat wall portion is provided with two MEAs-4, as fuel cells that are arranged so that the fuel electrodes (not shown) face inward. One of the long-side wall portions has an opening provided with, on the edge thereof, an elastic packing serving as a sealing member. An opening and closing lid is pivotably provided to the opening by a pivot as a pivot member. The resulting reduced size methanol fuel cell system has sufficient air-tightness and good power generation efficiency, and is simple in structure.

Abstract: A metal electrolytic capacitor capable of quickly absorbing and immobilizing a belching vapor of a driving electrolyte and widely reducing leakage when an explosion-proof valve operates. An aluminum electrolytic capacitor body is configured by housing a capacitor element in a cylindrical aluminum case, a pair of leads extend from the capacitor body, an explosion-proof valve is formed on a top panel portion of the metal case, a cylindrical cap as a casing is attached from above to the capacitor body, a plurality of small openings are formed on a top panel portion (bottom portion) of the cap, and an absorbent or a mixture of an absorbent and a water molecular compound wrapped in a permeable fiber material, such as unwoven fabric and filter paper, is placed in a space between the cap and the top panel portion of the capacitor body.

Abstract: A fuel cell comprises a fuel electrode, an electrolyte membrane and an air electrode 4. The fuel electrode and the air electrode 4 are electrically connected by way of an electric circuit L. A solid-state methanol storage container serving as a fuel container is disposed in the vicinity of the fuel cell on the side of the fuel electrode. The storage container comprises a rectangular box-like casing, the interior of which is packed with solid-state methanol. An opening serving as an air-permeable portion is formed on the lower face side of the storage container. By dividing the opening by a synthetic resin mesh, which is a permeable material, the solid-state methanol is held with secured air permeability. The resulting direct methanol fuel cell system uses extremely safe solid-state methanol in a fuel cartridge.

Abstract: A fuel cartridge has a pair of flat faces in which holes are formed. A net is stretched within the holes, and solid methanol is packed inside the fuel cartridge. A fuel cell unit, shaped as a flat box, comprises a pair of flat wall portions, a pair of long-side wall portions, and a pair of short-side wall portions. Each flat wall portion is provided with two MEAs, as fuel cells that are arranged so that the fuel electrodes (not shown) face inward. One of the long-side wall portions has an opening provided with, on the edge thereof, an elastic packing serving as a sealing member. An opening and closing lid is pivotably provided to the opening by a pivot as a pivot member. The resulting reduced size methanol fuel cell system has sufficient air-tightness and good power generation efficiency, and is simple in structure.

Abstract: A direct methanol fuel cell system comprises a fuel storage portion that stores solid-state methanol resulting from making methanol into a solid state, a fuel cell, and carrier gas circulation means. The fuel storage portion is provided with a carrier gas supply path communicating with the carrier gas circulation means and a fuel gas flow path 4 communicating with a fuel electrode side of the fuel cell, while the fuel cell is provided with a circulation flow path communicating with the carrier gas circulation means. When a carrier gas is supplied by the carrier gas circulation means into the fuel storage portion via the carrier gas supply path, a fuel gas is supplied to a fuel electrode and is refluxed thereafter towards the carrier gas circulation means. The resulting direct methanol fuel cell system uses extremely safe solid-state methanol in a fuel cartridge.

Abstract: There are provided a packing material capable of removing an odor, and preventing deterioration in quality of the contents, due to an odor, excellent in mechanical strength and environmental conservation, and available at a low cost, a flexible container using the packing material, a method of forming the flexible container, a method of enclosing a liquid in the flexible container, capable of removing an odor, and preventing deterioration in quality of the contents, due to an odor, and the liquid enclosed in the flexible container. The packing material (a flexible material 2, laminated film 12) has tearableness, and is a laminate or includes the laminate, the laminate comprising a heat seal layer 4 (for example, a PE film 14) having heat seal property, a gas shut-out layer 6 (for example, a CPET film 16) having gas shut-out property, and a protective layer 8 (for example, an NY film 18) having a mechanical strength, wherein the heat seal layer is exposed in the surface of the laminate.