Abstract: A method for producing a button cell with a housing includes a cell cup with a base region, a lateral region, an edge region lying therebetween and a cut edge, and a cell cover with a cover region, a lateral region, an edge region lying therebetween and a cut edge, connected to one another via a seal. The method includes at least applying the seal to the lateral region, inserting the cell cover with the seal into the cell cup, wherein a region is formed in which the lateral regions and overlap one another, and exerting a pressure on the lateral region of the cell cup. The heights of the lateral regions and are matched to one another such that the cut edge is pressed against the lateral region by pressure. The cell cup of button cells have an inner radius which is essentially constant in the region in the direction of the cut edge.

Abstract: The present invention relates to a battery module including an aggregation comprising unit cells and a housing for housing the aggregation and circulating a coolant therein. The housing includes an inlet part disposed on an upper side of the aggregation, through which the coolant can flow into and along the housing in a length direction, and an outlet part connected to the inlet part, through which the coolant can be released out of the housing after cooling the unit cells while passing the aggregation.

Abstract: An energy storage device includes a first electrode comprising a first material and a second electrode comprising a second material, at least a portion of the first and second materials forming an interpenetrating network when dispersed in an electrolyte, the electrolyte, the first material and the second material are selected so that the first and second materials exert a repelling force on each other when combined. An electrochemical device, includes a first electrode in electrical communication with a first current collector; a second electrode in electrical communication with a second current collector; and an ionicaily conductive medium in ionic contact with said first and second electrodes, wherein at least a portion of the first and second electrodes form an interpenetrating network and wherein at least one of the first and second electrodes comprises an electrode structure providing two or more pathways to its current collector.

Abstract: An energy storage device includes a first electrode comprising a first material and a second electrode comprising a second material, at least a portion of the first and second materials forming an interpenetrating network when dispersed in an electrolyte, the electrolyte, the first material and the second material are selected so that the first and second materials exert a repelling force on each other when combined. An electrochemical device, includes a first electrode in electrical communication with a first current collector; a second electrode in electrical communication with a second current collector; and an ionically conductive medium in ionic contact with said first and second electrodes, wherein at least a portion of the first and second electrodes form an interpenetrating network and wherein at least one of the first and second electrodes comprises an electrode structure providing two or more pathways to its current collector.

Abstract: Provided is an electrochemical device comprising multi-stacked unit cells of full cells or bicells and a separation film disposed therebetween, whereby the separation film and separators are alternately stacked between electrode layers with an opposite polarity. Herein, as the separation film is formed of a material having a higher thermal shrinkage rate than that of the separator, the thermal stability of the device can be secured by stable induction of shutdown via thermal behavior of the separation film, without causing short-circuiting due to thermal shrinkage of the separator even when a temperature of a battery suddenly rises by internal or external factors.

Abstract: A fuel cell system comprising a fuel cell having plural membrane-electrode assemblies and plates, fuel and oxidant humidifiers and heater exchanger. Heat exchange between a supply inlet and discharge outlet is carried out between first and second heat exchange mediums. Fuel gas and oxidant gas are directed to flow parallel to each other in the fuel cell. A circulation path is established through the fuel and oxidant humidifiers and the heat exchanger by interconnection among discharge outlet, heat exchanger, fuel and oxidant humidifiers, and inlet.

Abstract: A fuel cell vehicle is provided. The voltage of a fuel cell is fixed, by a DC/DC converter, to a voltage outside an oxidation reduction progress voltage range of the fuel cell. In this state, oxygen concentration or hydrogen concentration is decreased by a gas supply unit, and electric power outputted from the fuel cell is decreased. In this state, regenerative electric power generated by regeneration is collected into a battery.

Abstract: Fuel cell fuel supplies having single and multiple compartments for storing and containing fuel cell fuel precursor reagents. These fuel supplies allow storage and packaging of precursors for in situ production and use of fuel cell fuel. A method for making fuel cell fuel and a fuel cell system is also disclosed.

Abstract: An electric power storage system 10 of the present invention includes a lithium secondary battery; a detection device to detect the temperature of the lithium secondary battery; and a control device to decrease a remaining capacity of the lithium secondary battery based on an increase of the detected temperature and a temperature Tbx of the lithium secondary battery. When a self-heating rate of the lithium secondary battery at a temperature T (K) and a remaining capacity x (%) is represented by Hs(x, T) (K/min), and a heat dissipation rate at a temperature T (K) of the lithium secondary battery is represented by Hd(T) (K/min), the temperature Tbx is a temperature at which Hs(x,Tbx)>Hd(Tbx) holds. That is, this temperature Tbx is a temperature at which the heat generating rate is higher than the heat dissipation rate and at which the battery temperature T starts to increase.

Abstract: A rechargeable battery is disclosed. In one embodiment, the battery includes i) a current collecting plate, ii) a plurality of electrode assemblies electrically connected in parallel with each other via the current collecting plate, wherein each of the electrode assemblies comprises two opposing ends and an outer side formed between the two ends, and wherein the current collecting plate is electrically connected to one of the two ends of the electrode assemblies. The battery may further includes 1) a spacer and 2) a can configured to accommodate i) the current collecting plate, ii) the plurality of electrode assemblies and iii) the spacer, wherein the spacer is positioned i) between adjacent electrode assemblies and/or ii) between an inner surface of the can and at least one of the electrode assemblies, and wherein the spacer comprises at least one non-linear portion which contacts the outer side of at least one of the electrode assemblies.

Abstract: A process for operating a fuel cell system (1), especially in a motor vehicle. The fuel cell system (1) includes at least one fuel cell (3) as well as at least one reformer (2). To improve the possibility of warm start, a warm-holding mode, in which heat transfer takes place from the fuel cell (3) to the reformer (2), is activated after switching off the fuel cell system (1).

Abstract: A rechargeable lithium battery includes a positive electrode including a positive active material; a negative electrode including a negative active material; an electrolyte including a lithium salt and a non-aqueous organic solvent; and a separator interposed between the positive and negative electrodes and including a ceramic material having a first metal oxide-containing core and a second metal oxide shell disposed on the surface of the core.

Abstract: A fuel container according to the present invention includes a container body (15), a fuel (10) provided in the container body (15), a draining port (9) provided to the container body (15) for supplying the fuel (10) to the outside of the container body (15), a fluid introduction unit (19) which introduces into the container body (15) a fluid corresponding to flow-out of the fuel (10) from the draining port (9), and a swelling member (17) which connects to the fluid introduction unit (19) and swells in the container body (15) by absorbing the fluid.

Abstract: It is an object to provide a cathode for a secondary lithium battery in which adhesiveness and flexibility thereof are simultaneously achieved and the thickness thereof is made large, and the secondary lithium ion battery that has a large capacity and is excellent in safety and cycle life using the cathode. The cathode includes a current collector and a cathode mixture layer formed on the surface of the current collector. The cathode mixture layer is formed by stacking two layers one on another, each of which contains a cathode active material, a conductive material and a binder, and the cathode active material contains a lithium-containing composite oxide that forms a polyanion.

Abstract: The present invention provides a non-aqueous electrolyte secondary battery including: a positive electrode including a first active material capable of occluding and releasing a lithium ion and a second active material capable of occluding and releasing an anion; a negative electrode including a negative electrode active material capable of occluding and releasing a lithium ion; and an electrolyte containing a salt of a lithium ion and the anion. The second active material is a polymer having a tetrachalcogenofulvalene skeleton in a repeating unit. According to the present invention, provided is a non-aqueous electrolyte secondary battery with improved output characteristics, in particular, a pulse discharge characteristic, without a significant decrease in energy density.

Abstract: A fuel cell system includes a fuel cell, a circulation path, a water reservoir, a water level detector, a water discharger and a controller. The fuel cell generates electric power using fuel gas supplied to an anode and oxidant gas supplied to a cathode. Off-gas discharged from the fuel cell is returned to the fuel cell again through the circulation path. The water reservoir is disposed in the circulation path and stores water separated from the off-gas. During monitoring after stop of the fuel cell system or at startup of the fuel cell system, the controller operates the water discharger to discharge the water stored in the water reservoir when the controller determines that a level of the water detected or estimated by the water level detector is equal to or higher than a predetermined reference water level.

Abstract: An energy storage system comprising at least one energy storage module implemented as a sealed or submersible unit and adapted to supply electrical energy to a hybrid vehicle. The energy storage module comprises an enclosure and at least one battery array located within the enclosure. The energy storage module includes a pressure relief panel held in place by springs that allows battery gases to escape if gas pressures reach a predetermined threshold. Pressure in the enclosure compresses the springs causing the pressure relief panel to temporarily move outward until pressure is relieved at which time the springs force the pressure relief panel to reseal the enclosure.

Abstract: The present invention discloses a hydrogen-recyclable fuel cell comprising anode set, cathode set, catalytic layer, proton exchange membrane, hydrogen delivering device, hydrogen-storage complex metal layer and hydrogen drawing device. The hydrogen delivering device delivers hydrogen to the catalytic layer which ionizes hydrogen into electrons and hydrogen ions. After the hydrogen ions pass through the proton exchange membrane, they react with the hydrogen-storage complex metal layer and the electrons to produce complex metal hydrides. The hydrogen drawing device draws hydrogen from the complex metal hydrides into the storage tank for further reuse.

Abstract: A fuel cell system including a fuel cell, includes: a heater core used by a heating device; a first circulation circuit arranged to circulate a heat medium through the fuel cell; a second circulation circuit arranged to circulate the heat medium through the heater core; a connection channel arranged to connect the first circulation circuit with the second circulation circuit and thereby circulate the heat medium between the first circulation circuit and the second circulation circuit; and a first temperature regulator located on the second circulation circuit and downstream of the heater core and configured to regulate temperature of the heat medium after flowing out of the heater core and before flowing into the fuel cell.

Abstract: The invention relates to proton-conducting composites comprising a polymer matrix within which inorganic particles are dispersed, grafted to the surface of which particles are polymers comprising repeat units that comprise at least one acid proton-exchange group, optionally in the form of salts, or a precursor group of said acid group, said particles being chosen from particles of zeolites, of zirconium phosphates or phosphonates, or of oxides. Application to the field of fuel cells.