Abstract: A cathode composition is provided. The cathode composition includes at least one electroactive metal, wherein the electroactive metal is at least one selected from the group consisting of titanium, vanadium, niobium, molybdenum, nickel, iron, cobalt, chromium, manganese, silver, antimony, cadmium, tin, lead and zinc; a first alkali metal halide; an electrolyte salt comprising a reaction product of a second alkali metal halide and a metal halide, wherein the electrolyte salt has a melting point of less than about 300 degrees Centigrade; and a metal chlorosulfide compound having a formula (I) M1M2p+1SnCl4+3p?2n wherein “M1” is a metal selected from group IA of the periodic table, “M2” is a metal selected from group IIIA of the periodic table, “p” is 0 or 1, and “n” is equal to or greater than 0.5. An article and an energy storage device comprising the cathode composition is provided. A method of forming the energy storage device is provided.

Abstract: A fuel cell stack in accordance with the invention has a cell laminate obtained by stacking multiple plates with at least one of functions of a power generation assembly and a separator, and a pair of end plates located outside and on both ends of the cell laminate in a stacking direction. The fuel cell stack further includes a displacement preventing member extended along the stacking direction of the cell laminate and fastened to the pair of end plates, and a deformable intermediate material located between the cell laminate and the displacement preventing member over an area of two or more plates among the multiple plates. At least either one of the two or more plates and the displacement preventing member is designed to have a concavo-convex shape formed at least partially on a face in contact with the intermediate material.

Abstract: A polymer electrolyte fuel cell (10) includes: a polymer electrolyte membrane (20); an electrode catalyst layer (90c) provided on one surface of the polymer electrolyte membrane (20); a separator (80c) having electrical conductivity, and shielding gas; and an electrode member (50c) interposed between the electrode catalyst layer (90c) and the separator (80c) and constituting an electrode together with the electrode catalyst layer (90c). The electrode member (50c) includes: first contact portions (111) in direct contact with the electrode catalyst layer (90c); second contact portions (112) in direct contact with the separator (80c); and gas diffusion paths (121) through which the gas flows. The electrode member (50c) is provided with a large number of pores (131) formed therein, and constituted by a plate member (100) having electrical conductivity and bent into a wave shape.

Abstract: A fuel cell system includes a power supply controller. In response to input of a first command prior to a start of fuel cells in a state of power supply from a power source to fuel cell-related auxiliary machinery, the power supply controller reduces an amount of electric power supplied to the fuel cell-related auxiliary machinery until input of a start instruction to start the fuel cells. In response to input of a second command, the power supply controller instructs to continue the power supply from the power source to the fuel cell-related auxiliary machinery without reducing the electric power level of the power supply, irrespective of the input or non-input of the first command. The fuel cell system of this arrangement effectively reduces the amount of electric power consumed by an electricity storage device before a start of the fuel cells.

Abstract: A battery cover latching structure comprises a housing, a cover, a button and a follower. The housing has a catch positioned thereon. The cover is mounted to housing. The button is rotatably mounted to the cover. The follower is slidably mounted to cover, the follower has a latch releasably latched with the catch. When the button is rotated relative to the cover, the button pushes the follower away from the catch to release the latch and the catch.

Abstract: An electrically conductive plate for fuel cell applications comprises a plate body having at least one channel-defining surface and an electrically conductive hydrophilic layer disposed over at least a portion of the channel-defining surface. The electrically conductive layer includes residues of a silane coupling agent and electrically conductive hydrophilic carbon.

Abstract: A reversible solid oxide fuel cell obtainable by a method comprising the steps of: providing a metallic support layer; forming a cathode precursor layer on the metallic support layer; forming an electrolyte layer on the cathode precursor layer; sintering the obtained multilayer structure; in any order conducting the steps of: forming a cathode layer by impregnating the cathode precursor layer, and forming an anode layer on the electrolyte layer; characterised in that the method further comprises prior to forming said cathode layer, impregnating a precursor solution or suspension of a barrier material into the metallic support layer and the cathode precursor layer and subsequently conducting a heat treatment.

Abstract: The pressure-adjusting valve provided in the cathode outlet of a fuel cell stack constituting a fuel cell system has a function of adjusting the oxidizing gas pressure in the fuel cell stack according to the adjustment of the valve opening degree. When the exhaust pipe is flooded with water, the pressure inside the exhaust pipe varies from the atmospheric pressure and the opening degree of the pressure-adjusting valve changes. The flooding estimation signal output processing unit of the control unit outputs a flooding estimation signal indicating that the exhaust pipe is flooded when an opening degree difference that is a difference between the opening degree of the pressure-adjusting valve and a preset opening degree corresponding to the operation directed pressure is equal to or greater than a preset threshold opening degree difference. The processing of inhibiting the flowing is performed based on this signal.

Abstract: A battery (100) includes a flat wound electrode body (10) that is obtained by winding a first electrode sheet (20) and a second electrode sheet (30) in a flat shape via separator sheets (40a, 40b). The first electrode sheet (20) is disposed in the flat wound electrode body (10) so as to be wound on the outer peripheral side with respect to the second electrode sheet (30). The first electrode sheet (20) is wound so as to enfold a winding end portion (38) of the second electrode sheet (30). A winding end portion (28) of the first electrode sheet (20) is disposed so as to pass either of the straight portions (12a, 12b) or rounded portions (14a, 14b) where the winding end portion (38) of the second electrode sheet (30) is disposed and reach the next straight portion (12a, 12b) or pass through the next straight portion.

Abstract: There is provided an electric energy storage device which has a connection structure with a high connection reliability and which can suppress any contact of an outer package body with a connection terminal with a simple structure. The electric energy storage device comprises a battery element 10 retained in an outer package body 20 having a metal layer 21b, a tabular internal lead 31 connected to the battery element 10, a tabular external lead 32, a connection terminal 33 electrically connecting the internal lead 31 with the external lead 32, an internal insulating member 41, and an external insulating member 43. Flanges 33T, 33B at both ends of the connection terminal 33 depress the external insulating member 43, the outer package body 20, and the internal insulating member 41 between the tabular external lead 32 and internal lead 31, and the external insulating member 43 and/or internal insulating member 41 is pressed in between a penetration shaft 33S of the connection terminal 33 and the metal layer 21b.

Abstract: An electric storage device has positive and negative electrode systems. The positive electrode system includes a positive electrode having a current collector and a positive-electrode mixture layer. The negative electrode system includes a negative electrode having a current collector and a negative-electrode mixture layer. The negative electrode system further includes a first negative-electrode mixture layer and a second negative-electrode mixture layer, which are connected to each other and which include at least one different material or have different material composition ratios. The first negative-electrode mixture layer and the second negative-electrode mixture layer have different charge/discharge characteristics. A through-hole is formed in the current collector arranged between the first negative-electrode mixture layer and the second negative-electrode mixture layer.

Abstract: A system for preparing particulate carbon fuel and using the particulate carbon fuel in a fuel cell. Carbon particles are finely divided. The finely dividing carbon particles are introduced into the fuel cell. A gas containing oxygen is introduced into the fuel cell. The finely divided carbon particles are exposed to carbonate salts, or to molten NaOH or KOH or LiOH or mixtures of NaOH or KOH or LiOH, or to mixed hydroxides, or to alkali and alkaline earth nitrates.

Abstract: A fuel cell includes a plurality of fuel cell units, each fuel cell unit including an electrode assembly formed by disposing electrodes on both sides of an electrolyte, a pair of separators that sandwich the electrode assembly, and gas sealing members that are disposed at an outer peripheral portion of the electrode assembly, and that seal respective reaction gas flow passages that are formed between each separator and the electrode assembly. In one of the separators of each of the fuel cell units, a through path is formed that penetrates the separator in the thickness direction thereof, and the through path formed in one of the separators of one of the fuel cell units and the through path formed in one of the separators of adjacent one of the fuel cell units are offset with each other as viewed in the thickness direction of the separators.

Abstract: A fuel cell system includes: a fuel cell stack configured to have a plurality of unit fuel cells arranged on an identical plane; a chassis configured to cover at least one side of said fuel cell stack via an air flow space; and a condensation water holding member configured to be provided in at least a part between said fuel cell stack and said chassis, have a mesh shape and have a function for keeping moisture.

Abstract: A method of operating a fuel cell electrochemical system includes receiving at least one of a cost of electricity and a cost of fuel and adjusting at least one of an operating efficiency and throughput of the fuel cell based on the at least one of the received cost of electricity and the received cost of fuel.

Abstract: The effective ionic conductivity in a composite structure is believed to decrease rapidly with volume fraction. A system, such as a bipolar device or energy storage device, has structures or components in which the diffusion length or path that electrodes or ions must traverse is minimized and the interfacial area exposed to the ions or electrons is maximized. The device includes components that can be reticulated or has a reticulated interface so that an interface area can be increased. The increased interfacial perimeter increases the available sites for reaction of ionic species. Many different reticulation patterns can be used. The aspect ratio of the reticulated features can be varied. Such bipolar devices can be fabricated by a variety of methods or procedures. A bipolar device having structures of reticulated interface can be tailored for the purposes of controlling and optimizing charge and discharge kinetics.

Abstract: An electrochemical energy generation system includes plural electrochemical cells connected electrically in series that utilize a common electrolyte that can be delivered to each of the cells and/or collected from each of the cells using one or more manifolds. The system provides a possibility for reducing shunt currents by applying a shunt-current minimizing voltage to terminals of the manifolds from the terminal electrodes of the cells connected in series.

Abstract: In a fuel cell stack, gas channels and heat medium channels are disposed on one surface and the other surface of one plate, respectively. Gas channels are disposed on the other plate such that they face the gas channels in the one plate. A gas inlet header is disposed at the upper part of the gas channel in the plate and a heat medium inlet header is disposed at the upper part of the heat medium channels such that they face the gas inlet header on the other side. Cooling water as a heat medium is supplied from a heat medium supply manifold hole to a heat medium inlet header. Water vapor in the reaction gas (wet fuel gas) is prevented from being condensed in the inlet area of the gas channels by heating the gas inlet header by heat conduction.

Abstract: The present invention relates to a secondary battery and a method of fabricating the same. In a secondary battery according to an embodiment of the invention, holding members for holding a molded resin member are formed on a cap plate of a bare cell, which prevents the molded resin member from being distorted or detached from the cap plate of the bare cell when battery parts, such as a protection circuit board and a secondary protection element, are coupled to the bare cell by the molded resin member.

Abstract: The present invention relates to a unit set having a plurality of lithium rechargeable batteries, which can receive and protect a plurality of lithium rechargeable batteries comprised of an pouch and an electrode tap and facilely change a voltage and a capacity thereof according to a degree of freedom in a stack structure of the lithium rechargeable batteries, and a set having a plurality of the unit sets.