Abstract: An energy storage device includes: an electrode assembly formed by winding a plurality of plates; and a case housing the electrode assembly. The electrode assembly includes: a body including a flat portion and a pair of curved portions sandwiching the flat portion; and a plurality of tabs, each tab formed by stacking a plurality of pieces of plates with the same polarity out of the plurality of plates, and protrude as a pair from each of both end faces of the body in a winding-axis direction. At least one tab of the plurality of tabs includes a bent portion continuous with the curved portion, and a pair of extended portions extended from the bent portion and continuous with the flat portion.

Abstract: An energy storage device includes a wound electrode assembly containing lithium manganese oxide as a main component in a positive active material, and a case that houses the wound electrode assembly. The wound electrode assembly includes a mixture layer forming portion in which a mixture layer is formed, and a mixture layer non-forming portion located at least at one end in a first direction parallel to a winding axis. In the wound electrode assembly, a ratio of a dimension in the first direction to a dimension in a second direction orthogonal to the first direction in plan view is 1.45 or more.

Abstract: An energy storage apparatus includes an energy storage unit including a first energy storage device and a second energy storage device that are arranged in a first direction. The first energy storage device includes a concave part in which a surface of the first energy device, the surface opposite to the second energy storage device is recessed. The energy storage unit further includes: a first adhesive body that is disposed in the concave part between the first energy storage device and the second energy storage device and adheres to the first energy storage device and the second energy storage device; and a spacer that is disposed between the first energy storage device and the second energy storage device at a position different from the first adhesive body in a second direction intersecting with the first direction.

Abstract: An abnormality detection method detects abnormality of an assembled battery including energy storage devices by an abnormality detection device. Each energy storage device contains, as a positive active material, lithium iron phosphate and lithium transition metal oxide that allows insertion and extraction reaction of a lithium ion in a potential range higher than that of the lithium iron phosphate. A ratio of an amount of charge based on a total amount of the lithium transition metal oxide to an amount of charge based on a total amount of the positive active material in a charge-discharge range, in which the energy storage device is used, is 5% or more. The abnormality detection device acquires voltage of each of the energy storage devices near a charge end point in the charge-discharge range where the energy storage device is used and detects abnormality in the assembled battery using the acquired voltage of the energy storage devices.

Abstract: [PROBLEM] In space-conservative fashion, at low cost, and with high efficiency, to carry out absorption of gas produced at the interior of a battery. [SOLUTION MEANS] Secondary battery 21 is provided with case 3 in which positive electrode 10 and negative electrode 11 are sealed together with electrolyte, and with explosion prevention valve 4 for allowing escape of high-pressure gas present at the interior of case 3 when pressure within case 3 rises; and is further provided with gas absorber 13 or 14 for absorbing high-pressure gas. Gas absorber 13, includes gas-absorbent material 6 and capsule 5, which comprises hot-melt material, and is provided within case 3, this capsule 5 including, at the interior thereof, gas-absorbent material 6.

Abstract: The present invention aims to provide a hydrogen generating method for generating hydrogen-containing gas little contaminated with nitrogen, CO, etc., by decomposing fuel containing an organic compound at low temperature while requiring the supply of no or little electric energy from an external source, and a hydrogen generating system based on the method. A hydrogen generating system based on the method can work under multiple conditions: (a) it works under a condition where electric energy is withdrawn from the hydrogen generating cell with the fuel electrode (12) serving as a negative electrode and the oxidizing electrode (14) as a positive electrode; and (b) it works under another condition where external electric energy is provided to the hydrogen generating cell with the fuel electrode (12) serving as cathode and the oxidizing electrode (14) as anode.

Abstract: A hydrogen generating device for generating a gas containing hydrogen by decomposing a fuel containing an organic compound which includes a partition membrane, a fuel electrode provided on one surface of the partition membrane, a fuel supply unit supplying a fuel containing organic compound and water to the fuel electrode, an oxidizing electrode provided on the other surface of the partition membrane, an oxidizing agent supply unit supplying an oxidizing agent to the oxidizing electrode, and a gas generating and collecting unit generating and collecting the gas containing hydrogen from the fuel electrode. A low oxidizing agent supply region where supply of the oxidizing agent is substantially lower than the other region is present on an oxidizing electrode side of the hydrogen generating device.

Abstract: [PROBLEM] In space-conservative fashion, at low cost, and with high efficiency, to carry out absorption of gas produced at the interior of a battery. [SOLUTION MEANS] Secondary battery 21 is provided with case 3 in which positive electrode 10 and negative electrode 11 are sealed together with electrolyte, and with explosion prevention valve 4 for allowing escape of high-pressure gas present at the interior of case 3 when pressure within case 3 rises; and is further provided with gas absorber 13 or 14 for absorbing high-pressure gas. Gas absorber 13, includes gas-absorbent material 6 and capsule 5, which comprises hot-melt material, and is provided within case 3, this capsule 5 including, at the interior thereof, gas-absorbent material 6.

Abstract: An electric automobile includes a fuel cell for power generation by supply of hydrogen and oxidizing agent, a hydrogen generating device for generating a gas containing hydrogen to be supplied to the fuel cell, and a motor driven by electricity generated by the fuel cell. The hydrogen generating device generates gas containing hydrogen by decomposing an organic compound-containing fuel, and includes a proton conductive partition membrane, a fuel electrode provided on one surface of the partition membrane to directly generate the gas containing hydrogen, a device for supplying, to the fuel electrode, water and organic compound-containing fuel capable of producing a proton as a result of electrochemical oxidization which can pass through the partition membrane, an oxidizing electrode provided on the other surface of the partition membrane, a device for supplying the oxidizing agent to the oxidizing electrode, and a device for generating and collecting the gas containing hydrogen.

Abstract: A hydrogen supply system includes at least a hydrogen supply device for supplying hydrogen to a hydrogen storing device, and a hydrogen generating device producing hydrogen containing gas to be supplied to the hydrogen supply device. The hydrogen generating device produces the hydrogen containing gas by decomposing a fuel containing an organic compound, and includes a partition membrane, a fuel electrode provided on one surface of the partition membrane for generating hydrogen containing gas, a device for supplying a fuel containing the organic compound and water to the fuel electrode, an oxidizing electrode provided on the other surface of the partition membrane, a device for supplying an oxidizing agent to the oxidizing electrode, and a device for collecting the hydrogen containing gas directly from the fuel electrode.

Abstract: A hydrogen generating device can decompose fuel containing an organic compound at low temperature to generate hydrogen-containing gas that scarcely contains nitrogen and carbon monoxide without providing electric energy from outside or by providing only a small amount of electric energy from outside.

Abstract: A hydrogen generating device capable of generating a gas containing hydrogen at a low temperature, as well as a fuel cell power generating device, an electric automobile, a submergible ship and a hydrogen supply system using the hydrogen generating device are provided.

Abstract: A submarine boat provided with a fuel cell (30) for power generation by supply of hydrogen and oxidizing agent, a hydrogen generating device (10) for generating a gas containing hydrogen to be supplied to the fuel cell, and propelling device driven by electricity generated by the fuel cell, characterized in that the hydrogen generating device is to generate a gas containing hydrogen by decomposing a fuel containing an organic compound, comprising a partition membrane (11), a fuel electrode (12) provided on one surface of the partition membrane, means (16) for supplying a fuel containing the organic compound and water to the fuel electrode, an oxidizing electrode (14) provided on the other surface of the partition membrane, means (17) for supplying an oxidizing agent to the oxidizing electrode, and means for generating and collecting the gas containing hydrogen from the fuel electrode.

Abstract: A standalone hydrogen generating system is provided using a hydrogen generating device which can generate a hydrogen-containing gas at a low temperature and can be operated only by electric energy supplied from a fuel cell and does not require large electric energy.

Abstract: A hydrogen supply system is provided which can supply hydrogen easily to a hydrogen storing means, can generate a gas containing hydrogen at a low temperature and uses a hydrogen generating device which does not require a large quantity of electric energy.

Abstract: A fuel cell power generating device is provided in which a hydrogen generating device which can supply hydrogen easily to a fuel cell and can continuously generate a hydrogen-containing gas at a low temperature and does not require large electric energy is used.

Abstract: A submarine boat is provided on which a hydrogen generating device which can supply hydrogen easily to a hydrogen storing means and can generate a hydrogen-containing gas at a low temperature is loaded.

Abstract: An electric automobile is provided on which a hydrogen generating device which can supply hydrogen easily to a hydrogen storing means and can generate a hydrogen-containing gas at a low temperature is loaded.

Abstract: The present invention aims to provide a hydrogen generating method for generating hydrogen-containing gas little contaminated with nitrogen, CO, etc., by decomposing fuel containing an organic compound at low temperature while requiring the supply of no or little electric energy from an external source, and a hydrogen generating system based on the method. The hydrogen generating method provided by the present invention comprises providing a fuel electrode (12) in contact with one surface of a partition membrane (11), supplying fuel containing an organic compound and water to the fuel electrode (12), providing an oxidizing electrode (14) in contact with the other surface of the partition membrane (11), and supplying an oxidizing agent to the oxidizing electrode (14), wherein fuel containing the organic compound is decomposed and hydrogen is generated on the fuel electrode (12).

Abstract: A dye is added into a methanol/water fuel of a direct methanol fuel cell, and the dye is adsorbed and removed by a filter cartridge provided in the upstream of a cell stack. Carbon black, etc. may be added instead of the dye. Alternatively, a scenting agent such as formic acid and methyl formate, or an antiseptic may be added.