Abstract: A positive electrode for nonaqueous electrolyte secondary batteries having a positive electrode current collector and a positive electrode mixture layer that is formed on the positive electrode current collector.

Abstract: A bipolar plate structure for a fuel cell includes a cathode bipolar plate having a first flow field section to form cathode channels between the first flow field section and a first gas diffusion layer and a first land section to form coolant channels. An anode bipolar plate has a second flow field section to form anode channels between the second flow field section and a second gas diffusion layer and a second land section to form coolant channels. The cathode channels have an interdigitated channel structure, and the anode channels have a parallel channel structure. An air inlet manifold hole is formed along one of two long-side edge portions of a reaction region in the cathode and anode bipolar plates. An air outlet manifold hole is formed along the other of the two long-side edge portions of the reaction region.

Abstract: A hydrogen generator, a fuel pellet assembly for use in the hydrogen generator and a fuel cell system are disclosed. The hydrogen generator includes a housing having a lid pivotally connected to a base and a strip having a plurality of heaters on one side and a second plurality of heaters on the opposite side. A first cartridge is disposed on one side of the strip and a second cartridge is disposed on the opposite side. Each of the first and second cartridges has a plurality of fuel pellets, each including a hydrogen-containing material that will release hydrogen gas when heated. The heaters are selectively activated to heat one or more fuel pellets to initiate the release of hydrogen gas.

Abstract: A battery electrode assembly includes a current collector with conduction barrier regions having a conductive state in which electrical conductivity through the conduction barrier region is permitted, and a safety state in which electrical conductivity through the conduction barrier regions is reduced. The conduction barrier regions change from the conductive state to the safety state when the current collector receives a short-threatening event. An electrode material can be connected to the current collector. The conduction barrier regions can define electrical isolation subregions. A battery is also disclosed, and methods for making the electrode assembly, methods for making a battery, and methods for operating a battery.

Abstract: The present invention relates to zinc electrode and to methods of producing zinc electrode and particularly to a method of producing zinc electrode providing dimensional/geometrical stability during a battery charge/discharge operation. The invention provides methods of use of batteries comprising the zinc electrode of this invention. Applications of batteries of this invention include electric vehicles, portable electronics and drones.

Abstract: The present invention provides a lithium secondary battery, wherein a peak at 167 to 171 eV and a peak at 160 to 164 eV are present in XPS analysis of sulfur on a negative electrode surface (S2p), and P169/P162 is in the range of 0.7 to 2.0 wherein the P169/P162 is the ratio between the intensity of the peak at 167 to 171 eV (P169) and the intensity of the peak at 160 to 164 eV (P162).

Abstract: According to the present invention, a porous electrode substrate with greater sheet strength, lower production cost, and excellent gas permeability and conductivity as well as its manufacturing method are provided. Also provided are a precursor sheet for forming such a substrate, and a membrane electrode assembly and a polymer electrolyte fuel cell containing such a substrate. The method for manufacturing such a porous electrode substrate includes the following steps [1]˜[3]: [1] a step for manufacturing a sheet material in which short carbon fibers (A) are dispersed; [2] a step for manufacturing a precursor sheet by adding a water-soluble phenolic resin and/or water-dispersible phenolic resin to the sheet material; and [3] a step for carbonizing the precursor sheet at a temperature of 1000° C. or higher.

Abstract: The present invention provides a fuel cell system capable of suppressing the accumulation of impurities in a hydrogen system even when a hydrogen pump stops. A fuel cell system 100 includes a hydrogen pump 4, which is provided in a hydrogen gas circulation flow path 3 and which circulates a hydrogen off-gas discharged from the outlet side of a hydrogen electrode 1a of a fuel cell 1 to the inlet side of the hydrogen electrode 1a, a discharge valve 61, through which the hydrogen off-gas flowing in the hydrogen gas circulation flow path 3 is discharged out of the hydrogen gas circulation flow path 3, a determination section 81, which determines whether the hydrogen pump 4 is stopped, and a control unit 80, which controls the opening/closing of the discharge valve 61.

Abstract: A positive electrode for a non-aqueous electrolyte secondary battery, comprising: a positive electrode current collector and a positive electrode active substance layer formed upon the positive electrode current collector. The positive electrode active substance layer has a positive electrode active substance and a melamine-acid salt being a salt comprising melamine and acid.

Abstract: A battery pack comprises a plurality of batteries which store electric power for activating an electric utility vehicle; a battery case which accommodates the plurality of batteries therein; and an external frame unit which is provided on an outer surface of the battery case and supports the batteries from below, wherein the external frame unit includes a lower support section placed on a lower surface of the battery case, an upper support section placed on an upper surface of the battery case, and a coupling section which couples the lower support section and the upper support section to each other. This allows the battery case to ensure a required stiffness while providing insulation between the batteries and an outside of the batteries, without increasing a thickness of the battery case.

Abstract: An electric storage device includes an electrolyte and an electric storage unit including a positive electrode including a positive-electrode collector electrode and a positive-electrode active-material layer disposed on the positive-electrode collector electrode; a negative electrode including a negative-electrode collector electrode and a negative-electrode active-material layer disposed on the negative-electrode collector electrode and facing the positive-electrode active-material layer; a first insulating layer bonded to the positive electrode and the negative electrode to isolate the positive electrode and the negative electrode from each other; and a region that is sealed with the first insulating layer in plan view and that holds the electrolyte between the positive electrode and the negative electrode, wherein an air permeability P of the first insulating layer satisfies the formula 1250 s/100 cc<P<95000 s/100 cc.

Abstract: A polymer gel electrolyte containing at least a lithium salt and an aprotic solvent, in which an amorphous polymer layer is formed on the surface of an electrode active material.

Abstract: A solid state lithium carbon monofluoride battery includes an anode comprising Li, a solid electrolyte, and a cathode including CFx and LPS. The cathode can also include a carbon compound. The solid electrolyte can include LPS. The LPS can include ?-Li3PS4. The cathode LPS can include ?-Li3PS4. A method of making a battery is also disclosed.

Abstract: An electrochemical device is claimed and disclosed, including a method of manufacturing the same, comprising an environmentally sensitive material, such as, for example, a lithium anode; and a plurality of alternating thin metallic and ceramic, blocking sub-layers. The multiple metallic and ceramic, blocking sub-layers encapsulate the environmentally sensitive material. The device may include a stress modulating layer, such as for example, a Lipon layer between the environmentally sensitive material and the encapsulation layer.

Abstract: Electrodes made with a matrix selectively loaded with particular active particles provide uniform distribution and reduce issues due to particle expansion. The electrode has a current collector, a separator and a matrix having first pores having a first size and second pores having a second size, the first size being larger than the second size, the second pores being uniformly distributed throughout the matrix; first active particles deposited in the first pores, the first active particles having a first particle size smaller than the first pores and larger than the second pores; and second active particles deposited in the second pores, the second active particles having a second particle size smaller than the second pores.

Abstract: The present teachings provide apparatus and methods for mixing a reformable fuel and/or steam with an oxygen-containing gas and/or steam to provide a gaseous reforming reaction mixture suitable for reforming with a reformer and/or a fuel cell stack of a fuel cell unit and/or fuel cell system.

Abstract: A fuel cell stack assembly comprises a plurality of fuel cells in a stack, the stack defining two opposing parallel end faces. An end plate is disposed at each opposing end face of the stack. Each end plate defines a compression surface adjacent to and in compressive relationship with a respective one of the two opposing parallel end faces. A coupling mechanism is attached to the end plates to thereby maintain the fuel cells in the stack under compression. At least one, preferably both, of the end plates comprise a preformed element defining the compression surface, the preformed element being configured with a predetermined curvature such that the compression surface is a convex surface when the preformed element is not under load whereas, under the application of the load to maintain the fuel cells under compression, flexure of the preformed element between elements of the coupling mechanism causes the compression surface to become a substantially planar surface.

Abstract: The object of the present invention is to provide a battery pack that can reduce the thickness of the entire battery while ensuring that the film-packaged batteries adhere to each other. The battery pack of the present invention includes: film-packaged battery assembly 12 of multiple laminated film-packaged batteries 12, each film-packaged battery including power generation element 11 and film-wrapping 12 forming an interior space 13 that can house power generation element 11 along with electrolyte; and, at least one fixing member 3 that faces the side face of film-packaged battery assembly 2. Film wrapping 12 includes casing part 14 that forms interior space 13 and sealing part 15 that extends from casing part 14 to fixing member 3 to seal interior space 13. Sealing part 15 is inserted in slit 4 that is formed in fixing member 3 and that is fixed therein to fixing member 3.

Abstract: A battery assembly including: a plurality of prismatic battery cells; first and second fluid manifolds; and a plurality of corrugated flow plates interleaved with the plurality of battery cells, each the flow plates extending from the first manifold to the second manifold and providing an array of flow channels for carrying fluid from the first manifold to the second manifold, wherein each plate of the plurality of corrugated flow plates is an extruded plastic structure comprising first and second fluid impermeable sheets and a plurality of parallel ribs between and connecting the first and second sheets, said plurality of ribs forming the array of flow channels.

Abstract: Provided is a sodium secondary battery including: a sodium ion conductive solid electrolyte separating an anode space and a cathode space from each other; an anode positioned in the anode space and containing sodium; a cathode solution positioned in the cathode space; and a cathode immersed in the cathode solution and including graphite felt formed with open pore channel of which an opening part is formed on a surface of the graphite felt facing the solid electrolyte.