Abstract: Disclosed is an underwater craft having an electrochemical battery activated by an electrolyte, including: an electrochemical cell; a tank (13) intended to contain the electrolyte; a seawater flow rate regulator (37) arranged upstream of the tank (13). The flow rate regulator includes: a fixed housing (60) including first ports (64); a slide (62) including second ports (66); the slide (62) being movable, in relation to the fixed housing (60), under the effect of the pressure of the seawater entering the regulator (37), to a balanced position in which the first and second ports (64, 66) define outlet openings (70) for seawater to flow to the tank (13), the slide (62) being movable between a maximum opening position, in which the area of the openings is at a maximum, and a maximum restriction position, in which the area of the openings (70) is at a minimum.

Abstract: A nonaqueous electrolyte secondary battery includes a positive electrode, a negative electrode, and a separator disposed between the positive electrode and the negative electrode. The separator includes a substrate layer and a surface layer formed on at least one principal plane of the substrate layer, the surface layer contains polyvinylidene fluoride and an inorganic material particle, and an amount of deformation against pressure of the surface layer is larger than that of the substrate layer.

Abstract: A power storage device with high output is provided, in which the specific surface area is increased while keeping the easy-to-handle particle size of its active material. The power storage device includes a positive electrode including a positive electrode current collector and a positive electrode active material layer, a negative electrode including a negative electrode current collector and a negative electrode active material layer, and an electrolyte. The negative electrode active material layer includes a negative electrode active material having a plurality of graphite particles. Each of the graphite particles consists of graphite layers that are overlapped with each other with a gap of 1 nm to 10 nm therebetween. It is preferable that the grain diameter of the particle be 1 ?m to 50 ?m. Further, the specific surface area of the particles is 20 m2/g to 200 m2/g.

Abstract: An electrode active material, an electrode including the electrode active material, a lithium battery including the electrode, and a method of preparing the electrode active material. The electrode active material includes a core having at least one of a metal or a metal oxide that enables intercalation and deintercalation of lithium ions and a crystalline carbon thin film that is formed on at least a portion of a surface of the core. The electrode active material has a nano-structure.

Abstract: A battery cell holder is disclosed. In one embodiment, the holder includes first and second outer frames respectively positioned at first and second sides of a plurality of battery cells arranged substantially parallel with each other, wherein the first and second sides are opposing each other, and wherein the outer frames comprise first and second outer fastening members, respectively. The cell holder may further include at least one inner frame disposed between the outer frames, wherein the at least one inner frame comprises a first inner frame adjacent to the first outer frame, wherein the first inner frame has first and second inner fastening members which are respectively formed at opposing sides thereof and have corresponding shapes with respect to each other. The first inner fastening member may be connected to the first outer fastening member.

Abstract: A temperature elevating apparatus of a secondary battery includes a ripple generator and a controller. Ripple generator is connected to secondary battery, and is configured to actively generate ripple current of a predetermined frequency in secondary battery. Controller controls ripple generator to elevate a temperature of the secondary battery by generating ripple current in secondary battery. Here, the predetermined frequency is set to be a frequency in a frequency region where an absolute value of an impedance of secondary battery relatively decreases based on frequency characteristics of the impedance of secondary battery.

Abstract: The present invention provides a manifold block for a fuel cell stack, coupled to a fuel cell stack module and having a gas passage and a cooling water passage. The manifold block includes an insulating member and an insulating cover. The insulating member is inserted into the cooling water passage and contacts an inner surface of the cooling water passage. The insulating member has a tube-like shape and electrically insulates the inner surface of the cooling water passage. The insulating cover is inserted into the cooling water passage and contacts an inner surface of the insulating member. The insulating cover fixes and protects the insulating member.

Abstract: A composition for forming a solid electrolyte layer for use in the formation of a solid electrolyte layer of a lithium ion secondary battery contains first particles made of a lanthanum titanate and second particles made of a lithium titanate. It is preferable that the first particles have an average particle size of 50 nm or more and 300 nm or less. It is preferable that the second particles have an average particle size of 10 nm or more and 50 nm or less.

Abstract: A lithium-ion cell includes outgoing conductor foils and collectors. The outgoing conductor foil of a negative electrode of the lithium-ion cell consists of an aluminum foil which is covered on both sides with a metal layer. The collector for the negative electrode has an aluminum workpiece, which is at least partially covered with a metal layer. The metal layers of the outgoing conductor foil and of the collector consist of copper or nickel.

Abstract: A prismatic secondary battery includes a prismatic hollow outer body having a mouth and a bottom; a flat electrode assembly, a positive electrode collector, a negative electrode collector, and an electrolyte, all of which are stored in the prismatic outer body; a sealing plate sealing up the mouth of the prismatic outer body; and a positive electrode terminal attached to the sealing plate in an electrically insulated manner. The sealing plate includes a gas release valve and an electrolyte pour hole and further includes, on the front face, a concaved flat face having an identification code. With the prismatic secondary battery of the invention, a jig for assembly or the like is unlikely to come into contact with the identification code during an assembly process of the prismatic secondary battery, hence the identification code is unlikely to be abraded, and the traceability is unlikely to be lost.

Abstract: A battery pack detachably mounted in a device for supplying power to the device to operate the device includes at least one rechargeable secondary battery (1), a battery case (31) housing the rechargeable secondary battery (1), a mounting mechanism for mechanically mounting the battery case (31) in the device, an electrical connection connected electrically to the device for supplying power to the device, and a pack circuit board (74) securing the electrical connection. The battery case (31) is divided into a first casing and a second casing, the pack circuit board (74) is secured to the inside surface of the first casing, and the mounting mechanism is installed so the mounting mechanism is at least partially exposed on the surface of the first casing.

Abstract: Disclosed is a secondary battery having a structure in which a jelly-roll having a cathode/separator/anode structure is mounted in a cylindrical battery case, wherein a plate-shaped insulator mounted on the top of the jelly-roll includes a woven fabric or a knit fabric made of fibers.

Abstract: A fuel cell module includes a fuel cell stack, a reformer for reforming a mixed gas of a raw fuel and water vapor, an evaporator for supplying water vapor to the reformer, and a heat exchanger for raising the temperature of the oxygen-containing gas by heat exchange with a combustion gas, and an exhaust gas combustor and a start-up combustor for producing the combustion gas. The fuel cell module includes a first thermoelectric converter and a second thermoelectric converter for performing thermoelectric conversion based on a temperature difference between the combustion gas and the oxygen-containing gas.

Abstract: A battery unit may include a main accommodation casing that includes a power output terminal, at least one sub-module that is accommodated in the main accommodation casing and a control unit that is accommodated in the main accommodation casing and controls at least one of charging and discharging of a unit battery, wherein in the sub-module, two or more battery blocks are accommodated inside a sub-accommodation casing so that the terminals of the battery blocks each including a plurality of unit batteries are not exposed and the battery blocks are connected to each other through an electric connection member.

Abstract: A battery pack including an external case having improved strength to protect a bare cell is provided. The battery pack includes a bare cell, a cover plate attached to one of long side surfaces that are widest planes of the bare cell, and an external case including a resin portion and a reinforcement plate and accommodating both the bare cell and the cover plate, wherein the resin portion surrounds sides of the reinforcement plate.

Abstract: A secondary battery including: an electrode assembly including a first electrode plate that includes an uncoated portion, a second electrode plate that includes an uncoated portion, and a separator that is interposed therebetween, wherein the first and second electrode plates and the separator are wound so that the uncoated portion of the first electrode plate and the uncoated portion of the second electrode plate are arranged in different directions; a groove formed in at least one of the uncoated portions of the first and second electrode plates; and a current collector including a lead tab that is bent passing the groove in such a way that a portion of the lead tab contacts a side surface of at least one first uncoated portions and another portion of the lead tab contacts another side surface of the at least one uncoated portion.

Abstract: There is a manufacturing apparatus for an electrolyte membrane with gaskets by laminating an electrolyte membrane having a predetermined region on which a catalyst layer is formed and a gasket formed with an opening shaped to match the shape of the region of the catalyst layer. The manufacturing apparatus for an electrolyte membrane with gaskets includes a laminating roller that abuts on the gasket to laminate the electrolyte membrane and the gasket. The laminating roller has a surface on which a protrusion is formed. The protrusion is shaped to fit in the opening of the gasket. The manufacturing apparatus for an electrolyte membrane with gaskets includes a roller controller that operates the laminating roller such that the electrolyte membrane and the gasket are laminated while the protrusion is fitted in the opening of the gasket.

Abstract: An electrode for a lithium secondary battery, the electrode including: an electrode active material; and a composite including a clay and a polymer intercalated between layers of the clay, a method of manufacturing the electrode, and a lithium secondary battery including the electrode.

Abstract: A rechargeable battery having a plurality of electrode assemblies, a first current collecting plate disposed at one side of the plurality of electrode assemblies, a second current collecting plate disposed at an opposite side of the plurality of the electrode assemblies, the first and second current collecting plates being electrically connected with the electrode assemblies. Each one of the first and second current collecting plates having a plurality of current collecting portions fixed to and electrically connected to the electrode assemblies, a connection portion electrically connecting at least two of the current collecting portions, and an insulating supporter supporting the current collecting portions and the connection portion by surrounding the current collecting portions and the connection portion. The insulating supporter includes a plurality of openings exposing the plurality of current collecting portions.

Abstract: A mixer/eductor assembly for use with a fuel cell stack, the mixer/eductor assembly mixing and at least partially combusting anode exhaust gas output from an anode-side of the stack and an oxidant supply gas, the mixer/eductor assembly comprising: a first area mixing a first portion of the anode exhaust gas and a first portion of the oxidant supply gas to form a first mixture, the first area being configured to initiate a combustion reaction in the first mixture, a second area coupled with the first area for mixing a second portion of the anode exhaust gas and a second portion of the oxidant supply gas to form a second mixture, wherein the first mixture has a first oxidant to fuel ratio smaller than a second oxidant to fuel ratio of the second mixture, and the first area provides an ignition source to promote continuous combustion of the second mixture.