Abstract: A battery pack includes: a core pack; a protection circuit module electrically connected to the core pack and including a connector for further electrically connecting to an external electronic device; and a metallic cover for covering the core pack and the protection circuit module while exposing the connector to the outside, the metallic cover including a protrusion adjacent to a ground portion of the connector.

Abstract: A pulse mode apparatus comprises a mismatched battery electrically connected to a pulse mode device having a pulse duty cycle with a power-on time period and a power-off time period. The mismatched battery comprises a first battery cell having a first internal resistance and first charge capacity, and a second battery cell having a second internal resistance and second charge capacity, and the battery comprises at least one of the following: (1) the second internal resistance is less than the first internal resistance, and (2) the second charge capacity is less than the first charge capacity. The battery also has a pair of electrical connectors electrically coupling the first and second battery cells in parallel, a pair of terminals connected to the first or second battery cells, and a casing around the first and second battery cells with the terminals extending out of the casing.

Abstract: An electrochemical cell comprising an electrode assembly having a plurality of cathodes in which the plurality of cathodes is electrically connected together at a connection tab junction is disclosed. The junction preferably comprises a plurality of cathode connection tabs that are folded over each other to construct a junction that is mechanically and electrically robust. The junction is comprised of a plurality of connection tabs that each extend from a cathode. Each of the respective tabs is folded over each other to form a compact electrode junction having redundant connections. An elongated lead extends from the junction to provide an electrical connection to the plurality of cathodes. The junction is welded together such as by a laser, resistance or ultrasonic weld joint. The cathode junction is suitable for either primary or secondary cells, particularly those powering implantable biomedical devices.

Abstract: The invention relates to separator plates (108) for fuel cells, and in particular to separator plates having particular geometries for improved edge sealing properties. Exemplary embodiments of the invention include a fuel cell separator plate (308) having first and second opposing faces (304, 305), the separator plate having a series of corrugations (301) extending, and providing air flow paths (302), between first and second opposing edges of the plate, wherein crests of corrugations along the first face (304) proximate the first edge (303) of the plate are depressed to be coplanar with adjacent crests of corrugations along the second face such that a greater contact surface on the second face (305) is provided compared with the first face (304).

Abstract: An exemplary assembly includes an extrusion providing a channel that receives a portion of a battery cell frame. The extrusion is securable to a support to secure the battery cell frame relative to the support.

Abstract: Embodiments of the disclosure relate to membrane electrode assemblies. The membrane electrode assembly may include at least one gas-diffusion layer having a first side and a second side, and particle cores adhered to at least one of the first and second sides of the at least one gas-diffusion layer. The particle cores includes surfaces adhered to the at least one of the first and second sides of the at least one gas-diffusion layer and surfaces not in contact with the at least one gas-diffusion layer. Furthermore, a thin layer of catalytically atoms may be adhered to the surfaces of the particle cores not in contact with the at least one gas-diffusion layer.

Abstract: A secondary battery includes a can having an opening at one end, an electrode assembly accommodated in the can through the opening, a cap plate that seals the opening, and an insulation plate below the cap plate. The can includes: a first surface that is convex; a second surface that faces the first surface and is concave; a third surface that is curved and connected to the first surface and the second surface to form a bottom surface; a first connection portion that connects the first surface and the third surface and has a round form having a first radius of curvature; and a second connection portion that connects the second surface and the third surface and has a round form having a second radius of curvature. At least one of the first radius of curvature and the second radius of curvature varies along a length of the third surface.

Abstract: A fuel cell unit has a structure that enables the maximum use of a cell monitor in the height direction (vertical direction). In order to achieve this, the fuel cell unit comprises a fuel cell stack (3) including a cell stack body in which unit cells are stacked; and a cell monitor (6) for monitoring a voltage of the unit cells, wherein the cell monitor (6) is arranged so as to be inclined relative to a vertical direction. The cell monitor is inclined by providing a part of the cell monitor in the vicinity of a heat-generating part in a fuel cell on an opposite side of the heat-generating part relative to a central part in the vertical direction of the cell monitor and providing a part of the cell monitor in an area other than the heat-generating part in the fuel cell on a heat-generating part side relative to the central part in the vertical direction of the cell monitor.

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 device for separating a fluid having a water and gas portion in a fuel cell system includes a fluid inlet an a fluid outlet with an outlet valve. The separating device includes a first reservoir region for collecting the water portion of the fluid. The first reservoir region includes a first outlet to feed the water portion in the direction of the fluid outlet. The separating device also includes a second reservoir region having a second outlet that feeds the water portion in the direction of the fluid outlet so that the first reservoir region 19 is connected in series in terms of flow via the second reservoir region with the fluid outlet. In an installation position of the separating device the first outlet is arranged lower than the second outlet so that deposits of the water portion completely covering the first outlet are prevented from flowing away.

Abstract: A conduit for cooling a heating element includes an inlet mouth for entry of a fresh air flow, a plurality of cooling channels, the fresh air flow dividing between the channels into a plurality of air flows to collect heat produced by the heating element, an outlet mouth for an exit of a heated air flow, the heated air flow resulting from a merger of the plurality of air flows after the heat collection, and air deflectors in the outlet mouth facing the channel outlets situated closest to an exit opening of the outlet mouth relative to the other channel outlets to prevent at least one of the plurality of air flows from exiting the cooling channels. The air deflectors extend over lengths which reduce as distances from the opening of the outlet mouth increase to guide the air flows towards the exit opening of the outlet mouth.

Abstract: Provided are: a solid battery which has been sealed in an exterior material under a reduced pressure, wherein gas in the exterior material can be fully removed when depressurizing the inside of the exterior material; and a method of manufacturing the solid battery, the solid battery having a single cell having: a laminated body having a cathode layer, an anode layer, and an electrolyte layer disposed between the cathode layer and the anode layer; an insulating part disposed on an outer perimeter of the laminated body in a cross-sectional view of the laminated body in a direction orthogonal to a lamination direction thereof, and a pair of current collectors sandwiching the laminated body and the insulating part, wherein the single cell has been sealed in an exterior material under a reduced pressure; and the insulating part has vent holes.

Abstract: A battery system may include a plurality of battery cell assemblies electrically coupled in series. A first battery cell assembly of the plurality of battery cell assemblies includes a first lithium ion battery cell and a first lead acid battery cell electrically coupled in parallel with the first lithium ion battery cell such that the first lead acid battery cell is configured to resist overcharging and overdischarging of the first lithium ion battery cell.

Abstract: A battery is provided. The battery includes a positive electrode; a negative electrode; and a separator; wherein the separator comprises a base which is formed from a non-woven fabric, and a surface layer which is formed on at least one of the surfaces of the base and includes a resin material and inorganic particles, and the separator is formed by a pressurizing process being carried out on at least one of the surfaces of the surface layer, a thickness of the base is 12 ?m or more and 30 ?m or less, an average particle diameter of primary particles of the inorganic particles is 0.3 ?m or more and 0.8 ?m or less, a thickness of the surface layer is 1 ?m or more and 10 ?m or less.

Abstract: A lithium-ion secondary battery includes: an electrode body in which a positive electrode and a negative electrode are stacked or wound through a separator; a plurality of positive electrode tabs drawn from the electrode body; a plurality of negative electrode tabs drawn from the electrode body; a joint portion between the positive electrode tabs and a positive electrode lead tab; and a joint portion between the negative electrode tabs and a negative electrode lead tab. Apart of a metal plate is disposed on a surface of the positive electrode tab or positive electrode lead tab in the joint portion and on a surface of the negative electrode tab or negative electrode lead tab in the joint portion and joined integrally thereto, and a remaining part of the metal plate is wound around the joint portions.

Abstract: A fuel cell stack includes a membrane electrode assembly and a bipolar plate. The bipolar plate has a corrugated portion defined by an adjacent pair of proximal and distal peak portions and a sidewall segment connecting the peak portions. The sidewall segment and membrane electrode assembly at least partially define a flow channel. The sidewall segment includes a shoulder portion defining a step spaced away from the peak portions.

Abstract: Provided is a current collector including a laminate in which a conductive substrate and an insulator are laminated, wherein the insulator is a porous insulator formed with an open pore channel penetrating through the insulator. The current collector may be used as a current collector for an electrode of a secondary battery and stably maintain capacity of the secondary battery at the time of repeating charge and discharge cycles.

Abstract: A battery terminal cover is provided. The battery terminal cover has a base arranged to cover a battery terminal root, a tower arranged to cover a battery terminal post, and a projection coupled to the battery terminal cover. The projection has a retention area for temporary storage of a later used fastener for coupling to the battery terminal post. A battery is also provided.

Abstract: An energy storage system includes: multiple cells, each cell having a first end with anode and cathode terminals, and a second end opposite the first end, the cells arranged so that the second ends are aligned; for each of the cells, electrical connections coupled to the anode and cathode terminals at the first end; and a heat pipe having a flat evaporation surface facing the second ends.

Abstract: A secondary battery includes an electrode assembly, a battery case, and a cap assembly. The electrode assembly includes first and second electrodes. The battery case accommodates the electrode assembly therein and has an opened surface. The cap assembly seals the battery case and includes first and second terminal portions coupled to the respective first and second electrodes. In the secondary battery, at least one of the first and second terminal portions is coupled to a variable member including a plurality of variable plates. Accordingly, the path and resistance of current may be varied in the secondary battery, so that it is possible to reduce or prevent generation of heat caused by overcurrent. Thus, it may be possible to reduce or prevent an explosion and fire of the battery, thereby improving the safety of the battery.