Abstract: A fuel cell includes (1) a stack including (a) an assembly of overlaid electrochemical generators, which are disposed along a stack axis, and (b) end plates axially clasping the assembly, and (2) at least one holding winding. Each holding winding includes at least one taut wire wound around the stack in a plurality of turns. Each holding winding surrounds the stack and bears on the end plates. Each taut wire is formed of at least one layer or sheet, and ends of each taut wire are fixed on at least one of the end plates.

Abstract: There is provided an electrode for a rechargeable lithium battery including a current collector, and an active material layer on the current collector, the active material layer including a plurality of active material patterns having a band shape and a plurality of carbon layers between the neighboring active material patterns, wherein neighboring ones of the carbon layers have a gap of greater than about 1 mm and less than about 10 mm.

Abstract: A heat exchanger for a battery unit having at least a first battery module and a second battery module is disclosed wherein the first and second battery modules each include a plurality of battery cell containers each housing at least one battery cell. The first and second battery modules are spaced apart from each other with the heat exchanger being arranged between the spaced apart first and second battery modules. The heat exchanger is a laminated plate structure defining a plurality of fluid flow chambers each located within a respective fluid flow region for transmitting a heat exchanger fluid. Each of the fluid flow regions is dimensionally compliant independent of the other fluid flow regions to conform to the spacing of the respective battery cell containers in the first and second modules between which the specific fluid flow region is positioned when arranged between the first and second battery modules.

Abstract: A fuel cell oxidation reduction reaction catalyst comprising a carbon substrate, an amorphous metal oxide intermediate layer on the substrate, and an intertwined matrix of platinum and elemental niobium arranged to form a surface metal layer covering the intermediate layer such that upon oxidation, the niobium binds with oxygen resulting in strengthened bonds between the platinum and the intermediate layer.

Abstract: A gas diffusion electrode substrate that is used in a fuel cell and is constituted by an electrode substrate and microporous parts, in which a microporous part (A) is formed on one surface of the electrode substrate with a thickness in the range of 10 ?m or more and 60 ?m or less, and in the gas diffusion electrode substrate, the pore volume of pores with a pore size of 0.1 ?m or more and less than 10 ?m is within the range of 0.9 times or more and 5 times or less of the pore volume of pores with a pore size of 10 ?m or more and less than 100 ?m.

Abstract: A system for measuring a stack cell voltage of a fuel cell according to the present invention comprises: a stack voltage measuring unit which measures a stack voltage of a stack cell battery for each channel; a correction variable calculating unit which calculates a correction variable by using the stack voltage value measured by the stack voltage measuring unit; and a stack voltage value correcting unit which corrects the stack voltage measured by the stack voltage measuring unit on driving by using the correction variable.

Abstract: The present invention provides a lithium-ion battery, including: a housing and a separator located inside the housing, where the separator separates internal space of the housing into a plurality of accommodation cavities, battery core sets are disposed inside the accommodation cavities, the battery core sets each include at least one pole shank, and the battery core sets are connected in series; and at least one separator is provided with a liquid injection hole, and the liquid injection hole is used to connect two adjacent accommodation cavities on two sides of the separator; and a block mechanism, where the block mechanism is located inside the housing, the block mechanism enables the liquid injection hole to be in a predetermined state, and the predetermined state includes an open state and a closed state. The battery provided in the present invention ensures isolation and safety of each battery core set while facilitating liquid injection.

Abstract: A solid oxide fuel cell (SOFC) stack including a plurality of SOFCs and a plurality of interconnects. Each interconnect is located between two adjacent SOFCs, and each interconnect contains a Mn or Co containing, electrically conductive metal oxide layer on an air side of the interconnect. The SOFC stack also includes a barrier layer located between the electrically conductive metal oxide layer and an adjacent SOFC. The barrier layer is configured to prevent Mn or Co diffusion from the electrically conductive metal oxide layer to the adjacent SOFC.

Abstract: The present disclosure provides a cap assembly for a secondary battery and a secondary battery. The cap assembly includes a cap plate, a fixing member, a connecting member and an electrode terminal, wherein the cap plate has an electrode lead-out hole; the fixing member is fixed to the cap plate through the connecting member and provided with a weakened portion that is close to a center line of the cap plate in a width direction of the cap plate; and the electrode terminal includes a terminal board, wherein the terminal board has an outer peripheral surface at least partially surrounded by the fixing member so that the electrode terminal is fixed to the fixing member, and the terminal board is provided on a side of the cap plate and covers the electrode lead-out hole.

Abstract: A positive active material for a rechargeable lithium battery includes a compound represented by Chemical Formula 1, LiaNixCoyMezM1kM2pO2 wherein, 0.9?a?1.1, 0.7?x?0.93, 0<y?0.3, 0<z?0.3, 0.001?k?0.006, 0.001?p?0.005, x+y+z+k+p=1, Me is Mn or Al, M1 is a divalent element, and M2 is a tetravalent element.

Abstract: A fuel cell device is improved for operating conditions during a partial load operation. The fuel cell device comprises a cell stack formed by electrically connecting fuel cells for generating power by fuel gas and oxygen-containing gas; a fuel gas supply unit for supplying the fuel gas to the fuel cells; and a power adjustment unit for adjusting the amount of current that is supplied to an external load and a controller for controlling the fuel gas supply unit and the power adjustment unit. The controller adjusts, during the partial load operation of the fuel cell device and when the fuel gas supplied to the cell stack is at a low flow rate. The relationship between a fuel utilization rate of the cell stack and the amount of power generated by the cell stack can be nonlinear.

Abstract: A battery has an integrated flame retardant device, wherein the battery has: a cathode layer, a separating layer, and an anode layer, wherein the separating layer is arranged between the cathode layer and the anode layer, wherein the separating layer is impermeable to electrons and permeable to at least one positive type of ion, wherein the separating layer has a flame retardant device having at least one glass fibre, which includes a closed cavity, and wherein a flame retardant is arranged in the cavity. The battery has increased fire resistance.

Abstract: Provided is an electrode catalyst for a fuel cell including: a carbon support; and catalytic metal supported on the carbon support, the catalytic metal being selected from platinum or a platinum alloy, in which the carbon support has a crystallite size of (002) plane of carbon within a range of 5.0 nm or more and has a specific surface area within a range of 95 m2/g to 170 m2/g, and the catalytic metal has a crystallite size of (220) plane of platinum within a range of 4.5 nm or less.

Abstract: An object of the present disclosure is to efficiently release moisture, gas, and the like from the inside of an exterior body when moisture enters inside or when gas and the like is generated after a battery cell is put inside the exterior body, while inhibiting inrush of moisture to the inside. Provided is a battery structure comprising an exterior body and at least one battery cell housed inside of the exterior body which includes an openable and closable inlet introducing dry air to the inside from the outside of the exterior body, and an openable and closable outlet separate from the inlet releasing gas from the inside to the outside of the exterior body. When both of the inlet and the outlet are closed, pressure inside the exterior body is kept higher than atmospheric pressure.

Abstract: An electric storage device according to the present invention includes: an electrode assembly including positive and negative electrode plates that are insulated from each other, at least one of the electrode plates having an active material layer formed part and an active material layer non-formed part; positive and negative current collectors; and a metal material abutted against the active material layer non-formed part, wherein the metal material includes a curled part in which an edge of the metal material is curved in a direction away from the active material layer non-formed part, and the active material layer non-formed part, each of the current collectors, and the metal material are integrally coupled.

Abstract: A power generation cell includes a frame member. The frame member includes a first frame shaped sheet and a second frame shaped sheet that are joined together. The second frame shaped sheet is provided outside a cathode through a gap. A method of operating a fuel cell includes supplying a first reactant gas to a channel formed between the frame member and a first separator, a pressure of the first reactant gas being higher than a pressure of a second reactant gas, and supplying the second reactant gas to a channel formed between the frame member and a second separator.

Abstract: A fuel cell oxidation reduction reaction catalyst includes a carbon powder substrate, an amorphous conductive metal oxide intermediate layer on the substrate, and a plurality of chained electrocatalyst particle strands bound to the layer to form an interconnected network film thereon having a thickness of up to 10 atom monolayers.

Abstract: A device comprising a first solid oxide fuel cell and a second solid oxide fuel cell. The first solid oxide fuel cell comprises a first anode, a first cathode and a first electrolyte, wherein the first electrolyte is positioned between and connected to the first anode and the first cathode. The second solid oxide fuel cell comprises a second anode, a second cathode and a second electrolyte, wherein the second electrolyte is positioned between and connected to the second anode and the second cathode. In this device the cathode distance between the first cathode and the second cathode is less than the anode distance between the first anode and the second anode.

Abstract: A fuel cell stack includes multiple power generating units and a dummy unit, and respectively providing openings providing reactant-gas supply manifolds. Each power generating unit includes one or more first supply passages extending from the opening to a central region thereof. The dummy unit includes one or more second supply passages extending from the opening to a central region thereof, and a second supply passage port at the highest position in the vertical direction among the second supply passage ports where the second supply passages are connected to the opening is located at a lower position in the vertical direction than a first supply passage port at the highest position in the vertical direction among the first supply passage ports where the first supply passages are connected to the opening.

Abstract: Disclosed is an electrode for lithium-air batteries without using a binder and a carbon additive and a method of manufacturing the same, and more specifically, provided is a nanofiber network-based current collector-catalyst monolithic porous air electrode which has an improved specific surface area and high air permeability as the energy density per weight is increased and the diameter, porosity, and thickness of the nanofibers are controlled by utilizing a significantly light polymer and carbon based material.