Abstract: A pressure relief feature for a fuel cell stack is disclosed, wherein the pressure relief feature relieves excess pressure from the fuel cell stack and facilitates control of a maximum pressure reached within the fuel cell stack.

Abstract: A lead-acid battery comprising: at least one lead-based negative electrode; at least one lead dioxide-based positive electrode; at least one capacitor electrode; and electrolyte in contact with the electrodes; wherein a battery part is formed by the lead based negative electrode and the lead dioxide-based positive electrode; and an asymmetric capacitor part is formed by the capacitor electrode and one electrode selected from the lead based negative electrode and the lead-dioxide based positive electrode; and wherein all negative electrodes are connected to a negative busbar, and all positive electrodes are connected to a positive busbar. The capacitor electrode may be a capacitor negative electrode comprising carbon and an additive mixture selected from oxides, hydroxides or sulfates of lead, zinc, cadmium, silver and bismuth, or a capacitor negative electrode comprising carbon, red lead, antimony in oxide, hydroxide or sulfate form, and optionally other additives.

Abstract: The object of the invention is to provide a separator for fuel cells which is of improved strength and corrosion resistance and facilitates the assembling of unit cells. The separator comprises an electrically conductive resin layer formed by electrodeposition in such a way as to cover a metal substrate and a gasket component. The resin layer contains an electrically conductive material. The separator of the invention has thus an enhanced corrosion resistance, makes some considerable improvements in the assembling work efficiency of unit cells, and makes sure higher strength because of the use of the metal substrate.

Abstract: An all-solid-state battery having a high output power and a long life, exhibiting high safety, and being produced at a low cost is provided. The all-solid-state battery has a cathode comprising a cathode material, an anode comprising an anode material, and a solid electrolyte layer comprising a solid electrolyte, wherein the cathode material, the anode material, and the solid electrolyte are a compound shown by the following formulas (1), (2), and (3), respectively: MaN1bX1c ??(1) MdN2eX2f ??(2) MgN3hX3i ??(3) wherein M represents H, Li, Na, Mg, Al, K, or Ca and X1, X2, and X3 are polyanions, each of N1 and N2 is at least one atom selected from the group consisting of transition metals, Al, and Cu, and N3 is at least one atom selected from the group consisting of Ti, Ge, Hf, Zr, Al, Cr, Ga, Fe, Sc, and In.

Abstract: A battery holder comprises a collapsible frame configured to receive at least one battery, the frame couplable to an electronic device to provide power from the at least one battery to the electronic device.

Abstract: A direct type fuel cell power generator comprises an anode electrode including an anode catalyst layer, a cathode electrode including a cathode catalyst layer, a fuel container comprising at least two electromotive portion units, each of which comprises an electrolyte film disposed between the anode electrode and the cathode electrode, the fuel container housing a fuel therein, and a fuel flow path to supply a fuel in the electromotive portion unit. In the power generator, the fuel flow path has a flow path which produces flow-back again from the fuel container to the first electromotive portion unit via the first electromotive portion unit and the second electromotive portion unit, and which is not branched during the flow-back.

Abstract: A system comprising a first battery cavity and a second battery cavity adjacent to the first battery cavity. Both of the first and second battery cavities are oriented in a common direction. The system also comprises a third battery cavity which comprises at least part of the first battery cavity and at least part of the second battery cavity. The third battery cavity is oriented in a different direction than the common direction.

Abstract: This fuel cell system is equipped with a fuel cell having a reaction gas flow passage, generating power by the reaction gas being supplied to the reaction gas flow passage, having a refrigerant flow passage, and cooled by the refrigerant being supplied to the refrigerant flow passage; a reaction gas supply device for supplying the reaction gas to the reaction gas flow passage; a refrigerant supply device for supplying the refrigerant to the refrigerant flow passage; a refrigerant supply restriction device for restricting a refrigerant supply amount to the refrigerant flow passage; and a controller for controlling the refrigerant supply restriction device, wherein the reaction gas refrigerant supply devices have a drive device in common and are integrally driven, and wherein when warming up the fuel cell, the controller controls the refrigerant supply restriction device and reduces the refrigerant supply amount to the refrigerant flow passage.

Abstract: A unit consisting of a fuel cell, provided with a first ion-exchange membrane, and an electrolysis cell, equipped with a second ion-exchange membrane, capable of operating as an electrochemical hydrogen pump in which the electrolysis cell sucks in the discharge gas of the fuel cell anodic compartment which contains hydrogen as the main component, ionizes the hydrogen on a suitable anodic catalyst, sends the so formed protons across the second ion-exchange membrane to a suitable cathodic catalyst where the protons are reconverted to hydrogen which is mixed to the fuel cell hydrogen feed.

Abstract: A first metal separator of a fuel cell comprises a metal plate, and a first seal member is formed integrally on both surfaces of an outer edge of the metal plate. A first rib having a frame shape is provided around an oxygen-containing gas supply passage or the like of the metal plate. The first rib has a rib surface spaced away from an inner end surface of the metal plate around the oxygen-containing gas supply passage or the like, toward the oxygen-containing gas supply passage or the like.

Abstract: Disclosed is a secondary battery which can prevent twist or bend of a mold resin part of the battery. In one embodiment, a side wall extension part is formed on a top edge of a side wall of a can of the battery. The side wall extension part protrudes upwardly from the top edge of the side wall, and partially encloses a mole resin part that is formed on the top of the can. In another embodiment, a protrusion part is formed on an edge of an upper plane of a cap plate that covers the can of the battery. The protrusion part protrudes upwardly from the upper plane of the cap plate, partially encloses a mole resin part that is formed on the upper plane of the cap plate. In both embodiments, the protruded part adheres to the mold resin part, and supports the mold resin part to prevent mechanical distortion that can be caused by external force. Therefore, the protruded part improves the reliability of the battery.

Abstract: A latching mechanism of a battery cover assembly (100) is provided. The battery cover assembly includes a battery cover (20) and a housing (10). The latching mechanism includes a limiting mechanism, a hinged mechanism, at least one latching portion (133), and at least one latching arm (28). The limiting mechanism is configured to prevent the battery cover from accidentally detaching from the housing. The hinged mechanism is configured to facilitate both rotation and sliding of the battery cover relative to the housing. Each latching portion is formed on the housing, and each latching arm is formed on the battery cover. The latching arm elastically engages with a respective latching portion in such manner that the battery cover is latched to the housing.

Abstract: Provided is a lead-based alloy for a lead-acid battery, comprising not less than 0.02% and less than 0.05% by weight of calcium, not less than 0.4% and not more than 2.5% by weight of tin, not less than 0.005% and not more than 0.04% by weight of aluminum, not less than 0.002% and not more than 0.014% by weight of barium, and the balance of lead and unavoidable impurities.

Abstract: A system includes a fuel cell stack, a power communication path, a first controller and a second controller. The fuel cell stack generates electrical power, and the power communication path is coupled between the fuel cell stack and a load of the system to communicate the electrical power to the load. The power communication path includes a switch, which is operable to selectively couple the fuel cell stack to the load and isolate the fuel cell stack from the load. The first controller has a first response time to control the fuel cell stack and control the power communication path. The second controller has a second response time, which is significantly less than the first response time to monitor the power communication path for a fault condition and take corrective action in response to detecting the fault condition.

Abstract: The present invention relates to and provides a fuel cell in which sealing can be reliably made for each unit cell, thereby, enabling thinning, facilitating maintenance, and enabling miniaturization and weight reduction, and enabling free shape design. A fuel cell of the present invention is characterized by comprising a sheet-like solid polymer electrolyte 1 and a pair of electrode plates 2, 3 arranged on both sides of the solid polymer electrolyte 1, and further comprising a pair of metallic plates 4, 5 arranged on both sides of the electrode plates 2, 3, and provided flow path grooves 9, and inlets 4c, 5c and outlets communicating with the flow path grooves, wherein the peripheral edges of the metallic plates 4, 5 are mechanically sealed with an insulation material 6 interposed between the metallic plates.

Abstract: The present invention is related to an electrode and a method for preparing the same, and is particularly related to an electrode that has an intricate structure of active material layer, conductive material layer, or mixture layer of active material and conductive material that displays superior electrochemical properties despite being thin, and a method for preparing an electrode using the coating method of SIC.

Abstract: The present invention provides a fuel cell stack and a method of operating the same that allows for removal of liquid water and minimizes the impact of liquid water on the performance of the fuel cells. By selectively blocking the cathode reactant flow from exiting the fuel cell stack improved water management can be achieved. The selective blocking of the cathode reactant from exiting the fuel cell stack also helps to increase the partial pressure of the oxygen toward the exit side of the fuel cell stack which improves the chemical kinetics and the voltage produced by the fuel cells.

Abstract: A fuel cell system includes a fuel cell stack; a diluted fuel tank for storing diluted fuel; a diluted fuel conduit for supplying the diluted fuel from the fuel dilution tank to the fuel cell stack; a differential pressure sensor in the diluted fuel conduit to sense a differential pressure resulting from a fuel flow inside the diluted fuel conduit and to transmit an electric signal; and a controller for receiving the electric signal from the differential pressure sensor and for determining whether or not fuel is flowing inside the diluted fuel conduit.

Abstract: A non-aqueous electrolyte for a secondary battery, including a non-aqueous solvent in which a solute is dissolved, a first additive and a second additive, wherein the first additive is a vinyl monomer having an electron donating group, the second additive is a carbonic acid ester having at least one carbon-carbon unsaturated bond, and an e value, which is a polarization factor of the vinyl monomer having an electron donating group, is a negative value.

Abstract: A method of operating a fuel cell system includes providing a fuel inlet stream into a fuel cell stack, operating the fuel cell stack to generate electricity and a hydrogen containing fuel exhaust stream, separating at least a portion of hydrogen contained in the fuel exhaust stream using a cascaded electrochemical hydrogen pump, such as a high temperature, low hydration ion exchange membrane cell stack having at least two membrane cells arranged in process fluid flow series, and providing the hydrogen separated from the fuel exhaust stream into the fuel inlet stream.