Abstract: A long-life battery whose properties do not deteriorate after charge-discharges cycles is provided. A non-aqueous electrolyte secondary battery includes a cathode, an anode, and a non-aqueous electrolytic solution containing an electrolyte. At least one of the cathode and the anode includes a binder. The binder includes a layer having electron conductivity on a surface thereof. The binder improves the contact property between particles of the active materials of the battery and the conductivity in the electrode without impairing the binding property of the binder. Preferably, the binder includes a metal on the surface thereof and the metal does not form an alloy with lithium to further improve the lifetime of the battery.

Abstract: In a positive electrode active material for a magnesium secondary battery and a magnesium secondary battery using it, there is contained a powder particle containing a crystal phase having a structure formed with aggregation of a plurality of crystallites, and amorphous phases formed between the crystallites themselves; the amorphous phases contain at least one kind of a metal oxide selected from a vanadium oxide, an iron oxide, a manganese oxide, a nickel oxide and a cobalt oxide; and the crystal phase and the amorphous phases use the positive electrode active material enabling to store and release magnesium ions.

Abstract: A separator for fuel cell comprising an electrolyte with ionic conductivity, a pair of electrodes with the electrolyte sandwiched therebetween, and a separator 10 for individually supplying a fuel gas and an oxidizing agent gas to the pair of the electrodes, respectively, wherein the separator 10 is provided with a multilayered metal sheet with at least the outermost layer thereof, and a corrosion-resistant film covering the whole surface of the metal sheet in order to form a metal separator, and the metal separator is further provided with a reacting gas sealing unit 21, a reacting gas manifold junction unit 22, and a reacting gas rectification unit 23, formed of an elastic body.

Abstract: A fuel cell system for power generation comprising a solid polymer type fuel cell having a solid polymer electrolyte membrane for separating an anode gas and a cathode gas, a resistor, an inverter, a switch for switching the inverter and the resister with respect to the fuel cell, the switch and the inverter, a supply conduit and discharge conduit for the anode gas and the cathode gas, and a supply vale and a discharge valve. When a molar ratio of the hydrogen contained in the anode gas to oxygen contained in the cathode gas becomes 2/1 or less at the time of the stop of the fuel cell, the supply valve for air is closed.

Abstract: A secondary battery module comprises a casing in which vents are formed so as to allow outside air to flow in a vertical direction and one or more partition walls partition an internal space of the casing into a plurality of cell chambers. The partition wall comprises the pipe member as communication path to communicate between the cell chambers and the outside of the casing so as to allow outside air to be introduced into the internal space of the cell chambers. The secondary battery module further comprises a plurality of rod-shaped battery cells housed in the cell chambers and beams to support the battery cells along a horizontal direction and at predetermined intervals in the vertical direction in the cell chambers such that a cell axis direction is perpendicular to the vertical direction and extends along the partition wall.

Abstract: The assembled battery system according to the present invention includes at least two non-aqueous electrolyte secondary cells, each including a positive electrode that occludes and emits lithium ions, a negative electrode that occludes and emits lithium ions, and a non-aqueous electrolyte comprising an electrolyte dissolved in a non-aqueous solvent, all received in a parallelepiped cell case. These cells are arranged so that each larger area side of an adjacent pair of the parallelepiped cell case faces in parallel one another. A cooling member with a cooling medium flow conduit is provided between each opposing pair of larger area cell case sides, and cooling medium flowing in this conduit directly contacts the sides of the parallelopiped cell cases that define the two opposite sides of the cooling conduit.

Abstract: A lithium-ion secondary battery system is provided which can improve the cycle life and the storage property of a lithium-ion secondary battery and can decrease a discharge capacity which cannot be recharged. The lithium-ion secondary battery system includes a lithium-ion secondary battery having a cathode, an anode including carbon, and a non-aqueous electrolyte; a charge/discharge circuit for putting the lithium-ion secondary battery on charge according to a charge control parameter; and an arithmetic processing section for controlling the charge/discharge circuit.

Abstract: The present invention suppresses a decrease in the capacity of a lithium ion battery. A polymer forming agent or a sacrificial reducing agent is added to a nonaqueous electrolytic solution. A voltage is then applied to between a battery container and an anode. Thus, lithium ions can be inserted into the anode to recover the capacity of the battery.

Abstract: A fuel cell stack start method is to provide in which without relying on oxidation and reduction condition of an anode, an output reduction of the fuel cell stack can be avoided. In the start method of a solid polymer type fuel cell stack that is comprised of a separator including an anode flow channel for flowing a fuel, another separator including a cathode flow channel for feeding an oxidant and electrodes and an electrolyte interposed between the separators, the method is characterized by performing successively a first step of feeding the fuel to the fuel cell stack under a condition that a cathode is covered by generated water, a second step of forming an oxide layer on the cathode, a third step of feeding the oxidant gas to the fuel cell stack and a fourth step of extracting load current from the fuel cell stack.

Abstract: A fuel cell is provided which can control an optimum fuel concentration according to an output without a sensor for measuring the fuel concentration. The fuel cell uses a liquid organic compound for fuel and includes a membrane-electrode assembly, a passage for allowing fuel or oxidant to flow, a fuel supply unit for supplying the fuel to the fuel cell and intermittently or periodically changing a rate of fuel supply, and a computation processor for measuring a signal of a voltage or an output of the fuel cell, computing the rate of the fuel supply and the signal, and correcting the rate of the fuel supply. In the fuel cell, the optimum fuel concentration can be easily controlled according to the output by periodically varying the fuel concentration from a reference fuel concentration, measuring a voltage or an output and a variation range of the voltage or the output, and then determining whether the reference fuel concentration is appropriate or not.

Abstract: A lithium ion secondary battery includes: a cathode that stores/releases lithium ion at a potential not lower than an oxidation-reduction equilibrium potential between halogen ion and halogen; an anode that stores/releases lithium ion, preferably containing carbon; and a non-aqueous electrolytic solution composed of a non-aqueous solvent having dissolved therein an electrolyte. The non-aqueous electrolytic solution contains lithium halide or a halogen molecule. Instead of the non-aqueous electrolytic solution, a polymer solid electrolyte containing lithium halide or halogen molecule may be used.

Abstract: There is provided a fuel cell system capable of minimizing the formation of a local cell even if the start and the stop are repeated, thereby substantially reducing a degradation in performance of the fuel cell. The fuel cell system includes a fuel cell; a hydrogen supply unit for supplying hydrogen to an anode channel of the fuel cell; an air-amount adjusting unit for adjusting the amount of air supplied to a cathode channel of the fuel cell and discharged from the cathode channel; an external load connected to the fuel cell; and a control unit for controlling an operation of the hydrogen supply unit, the air-amount adjusting unit, and the external load; in which the control unit controls the fuel cell system such that the cathode channel of the fuel cell is filled with air whose pressure is not higher than a saturated vapor pressure at the time of starting the fuel cell system, thereafter, the air is continuously led through the cathode channel of the fuel cell, and a load is drawn from the fuel cell.

Abstract: The fuel cell assembly disclosed includes at least one unit fuel cell comprising a separator having flow channels for oxidizing gas, a cathode to which the oxidizing gas is fed, a membrane electrolyte of proton conductivity, an anode to which fuel gas is fed, and a separator having flow channels for the fuel gas, the above members being arranged in order. The fuel cell assembly further comprises a humidifier having a porous member to humidify at least the fuel gas to be fed to the anode. The porous member of the humidifier is so disposed as to face at least the flow channels for the oxidizing gas so that water is supplied to the flow channels from part of the surface of the porous member opposite to the water supplying face and/or from the outer periphery of the porous member.

Abstract: A polymer electrolyte fuel cell comprises a fuel cell stack and a humidifier. The fuel cell stack includes plural cells in which each cell has a pair of electrodes and a proton-conductive electrolyte membrane arranged between the pair of electrodes, wherein an oxidant gas or a fuel gas passes through the humidifier before being fed to the fuel cell stack, and wherein a wet gas containing water or water vapor also passes through the humidifier. In the fuel cell, the humidifier includes a porous separating layer and a hydrophilic water-releasing layer, wherein the separating layer is configured to separate the wet gas from the oxidant gas or the fuel gas in the humidifier, and wherein the hydrophilic water-releasing layer is disposed in a side of the oxidant gas or the fuel gas to the separating layer in the humidifier.

Abstract: A part of cell stack portions constituting a part of a fuel cell stack is used as a voltage detection portion, the size of a frequency component belonging to a predetermined specific frequency range is extracted from a voltage signal detected and the existence/absence of abnormality of a fuel cell system is diagnosed on the basis of the frequency component extracted.

Abstract: This invention provides an electrode for a polymer electrolyte fuel cell which fuel cell contains: a solid polymer electrolyte membrane; electrode layers formed respectively on both faces of the electrolyte membrane; two reinforcing members which cover respective outer surfaces of the electrode layers; and a sealing member which covers, extending from respective end faces to respective end parts of the reinforcing members, whole peripheries of the two reinforcing members, wherein the electrolyte membrane, the electrode layers and the reinforcing members are integrally formed by the sealing member.

Abstract: The present invention relates to a liquid preparation containing crude drug extracts in an amount of 5 to 50 w/v % in terms of a dry extract weight based on the whole amount of the liquid preparation, characterized by containing saccharides in an amount of 5 to 40 w/v % based on the whole amount of the liquid preparation and adjusting a pH to 4.5 to 5.5. This liquid preparation is suppressed in generating precipitate and suspended content with the course of time even if the crude drug extracts are contained in a high concentration and which is stable over a long period of time.

Abstract: A fuel cell system for power generation comprising a solid polymer type fuel cell having a solid polymer electrolyte membrane for separating an anode gas and a cathode gas, a resistor, an inverter, a switch for switching the inverter and the resister with respect to the fuel cell, the switch and the inverter, a supply conduit and discharge conduit for the anode gas and the cathode gas, and a supply vale and a discharge valve. When a molar ratio of the hydrogen contained in the anode gas to oxygen contained in the cathode gas becomes 2/1 or less at the time of the stop of the fuel cell, the supply valve for air is closed.

Abstract: The object of this invention is to provide an electrode for a polymer electrolyte fuel cell, a separator therefor, a polymer electrolyte fuel cell and a generating system, which electrode is simplified in structure, have high handling property, can be transferred precisely to a predetermined position, and enables automation of a production process. This invention provides an electrode for a polymer electrolyte fuel cell which electrode contains: a solid polymer electrolyte membrane; electrode layers formed respectively on both faces of the electrolyte membrane; two reinforcing members which cover respective outer surfaces of the electrode layers; and a sealing member which covers, extending from respective end faces to respective end parts of the reinforcing members, whole peripheries of the two reinforcing members, wherein the electrolyte membrane, the electrode layers and the reinforcing members are integrally formed by the sealing member.

Abstract: In an accounting system, an user 1, by the use of a terminal 2, transmits a transmission packet P1 to a reception destination 3, that is a server of an information service provider, and receives a reception packet P2 therefrom by way of a packet communication network 4. The accounting apparatus 6 receives numbers of transmitted and received packets 51 from an exchange 5 and also receives the accounting amendment information 71 from the accounting amendment apparatus 7 at an adequate timing. The accounting apparatus 6 thereby decides the account fees for the user 1 of the terminal 2 and for the reception destination 3, respectively. In other words, the information service provider is charged with a part of the numbers of transmitted and received packets 51.