Abstract: An energy storage device includes a first electrode comprising a first material and a second electrode comprising a second material, at least a portion of the first and second materials forming an interpenetrating network when dispersed in an electrolyte, the electrolyte, the first material and the second material are selected so that the first and second materials exert a repelling force on each other when combined. An electrochemical device, includes a first electrode in electrical communication with a first current collector; a second electrode in electrical communication with a second current collector; and an ionically conductive medium in ionic contact with said first and second electrodes, wherein at least a portion of the first and second electrodes form an interpenetrating network and wherein at least one of the first and second electrodes comprises an electrode structure providing two or more pathways to its current collector.

Abstract: A bipolar plate for an electrochemical cell is disclosed. The bipolar plate includes a unitary plate having first and second inlet ports, first and second outlet ports. The bipolar plate further includes a plurality of protrusions on each surface that forms a first plurality of flow channels, and second plurality flow channels. A first frame inlet header channel at one end of the first flow channels is in fluid communication with the first inlet port, and a first outlet header channel at the other end of the first flow channels is in fluid communication with the first outlet port. A second frame inlet header channel at one end of the second flow channels is in fluid communication with the second inlet port, and an outlet header channel at the other end of the second flow channels is in fluid communication with the second outlet port. Each of the header channels provides a fluid flow channel from one end of the respective header channel to the other end.

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: A bipolar battery includes: a bipolar electrode composed, by forming a positive electrode active material layer 12 an one surface of a current collector and forming a negative electrode active material layer 13 on the other surface; and a separator 14 composed to be stacked alternately with the bipolar electrode, wherein, in a single cell layer 15 composed by occluding the positive electrode active material layer 12, the separator 14 and the negative electrode active material layer 13, which are adjacent to one another, a thickness of the separator 14 is 0.68 times or more to less than 1.0 times a thickness of the positive electrode active material layer 12, and is 0.68 times or more to less than 1.0 times a thickness of the negative electrode active material layer 13.

Abstract: A bipolar plate includes angled facets oriented to form V-shaped projections on the plate edge. Liquid leaving the reactant channels is drawn back into the V-shaped grooves of the projections, leaving no liquid to obstruct the channel exit openings. The bipolar plate includes one portion of the bipolar plate offset from another portion of the bipolar plate so as to expose the reactant channels. The liquid is drawn toward the end portions of the reactant channels by capillary forces, while the gas flows can exit near the beginning of the offset portion. A fuel cell stack includes angled facets that are rotated to lie in the plane of the bipolar plate edges. The edges are chamfered so the channel exit openings of the reactant channels are at the tip portions thereof, thus allowing the liquid to flow away from the channel exit openings and the gas to exit freely.

Abstract: Bipolar plates and a fuel cell stack having the bipolar plates. The fuel cell stack includes membrane electrode assemblies (MEAs), and first and second bipolar plates sequentially stacked between the MEAs. The bipolar plates include: flow channels formed on opposing surfaces thereof; four manifolds connected to the flow channels; and through holes to connect to the manifolds of the bipolar plates adjacent thereto.

Abstract: A bipolar battery includes a housing and a plurality of bipolar electrode plates aligned with respect to one another within the housing to form a cell between each pair of adjacent bipolar electrode plates. Each of the plurality of bipolar electrode plates includes an electrode substrate having a first face and a second face, an electrical connection element overlapping at least a portion of both the first face and the second face, a first carbon foam current collector on the first face of the substrate, a second carbon foam current collector on the second face of the substrate, and a chemically active paste on both the first and second carbon foam current collectors. A plurality of electrical separators are interleaved with the plurality of bipolar electrode plates.

Abstract: A bipolar battery of the present invention includes a battery element composed by stacking in series a plurality of bipolar electrodes, in each of which a positive electrode is formed on one surface of a collector and a negative electrode is formed on the other surface, with electrolytes interposed therebetween. Further, the bipolar battery includes laminate films covering the battery element, each of the laminate films containing a metal layer, and tabs composed by being extracted from the battery element to outsides of the laminate films. In the bipolar battery, thickness of a resin layer interposed between the tab and the metal layer is equal to or more than thickness of the tab.

Abstract: The present invention relates to a bipolar battery provided with a pressure sensor. The battery is provided with a housing 7 containing common gas space 97. The pressure sensor 10; 20; 50; 63; 80; 111 comprises: an actuator 3, 21; 31; 41; 48; 81 configured to transfer an internal pressure P within the common gas space to a reciprocal movement, and a switching device 5; 83 configured to generate a control signal indicative of changes in relation to an initial switching state generated by said reciprocal movement when the internal pressure exceeds a predetermined upper level. The pressure sensor further comprises a reset means 4; 32; 81 to automatically reset the switching device to the initial switch state when the internal pressure goes below a predetermined lower level, whereby said control signal is based on the internal pressure (P) within said sealed common gas space. The present invention also relates to a method for charging bipolar batteries.

Abstract: A bipolar electrode module for a modular bipolar battery includes an electrode substrate having a first face, a second face, and a perimeter. An electrical connection element is disposed on the electrode substrate such that the electrical connection element overlaps at least a portion of both the first face and the second face of the electrode substrate. A first carbon foam current collector is attached to the first face of the electrode substrate, and a second carbon foam current collector is attached to the second face of the electrode substrate. A frame is attached to the electrode substrate along at least a portion of the perimeter of the electrode substrate.

Abstract: An electrode stack includes a cathode active material layer and an anode active material layer stacked together, and an electrolyte layer arranged between the cathode active material layer and the anode active material layer. A through hole extending in the stacking direction of the cathode active material layer and anode active material layer is formed in the cathode active material layer, anode active material layer and the electrolyte layer. The electrode stack further includes a bolt inserted to the hole for integrally holding the cathode active material layer, anode active material layer and the electrolyte layer. By such a structure, an electrode stack and a bipolar secondary battery that can effectively prevent displacement of interface between each of the cathode, anode and the electrolyte can be provided.

Abstract: The present invention is drawn to a high power electrochemical energy storage device in a bipolar configuration, comprising at least n stackable cells in bipolar configuration wherein subgroups of m cells are electronically monitored. The storage cells have a lithium ion insertion anode and a lithium ion insertion cathode, a separator, an electrolyte system, and a leak-proof seal structure. A number of embodiments are disclosed, characterized by a favorable range of m values, in combination with the anode-to-cathode capacity ratio, electrolyte conductivity, and other battery key features, thereby providing a high power device providing long cycle life and excellent power performance over many thousand charge and discharge cycles while minimizing the cost for electronic monitoring.

Abstract: An electrochemical device includes a first electrode in electrical communication with a first current collector, a second electrode in electrical communication with a second current collector and a crosslinked solid polymer in contact with the first and second electrodes. At least one of the first and second electrodes includes a network of electrically connected particles comprising an electroactive material, and the particles of one electrode exert a repelling force on the other electrode when the first and second electrodes are combined with an uncrosslinked precursor to the solid polymer.

Abstract: The present invention relates to a conductive composite material, comprising 5 to 40% by weight of a copolymer and 60 to 95% by weight of a conductive filler, wherein said copolymer is selected from a copolymer of vinyl terminated rubber-styrene, a copolymer of vinyl terminated rubber-styrene-divinyl benzene, or a copolymer of styrene-divinyl benzene. This conductive material has high conductivity, high mechanical strength and flexibility, and can be mixed with graphite molecules to form a conductive bipolar plate. This invention also relates to an electrode, which is produced from the above-mentioned conductive material.

Abstract: Disclosed herein is a composition suitable for use in the production of a fuel cell bipolar plate having improved electrical conductivity and mechanical strength. The composition for a fuel cell bipolar plate can include about 100 parts by weight of a basic resin composition including about 10 to about 50 parts by weight of polyphenylene sulfide as a thermoplastic resin and about 50 to 90 parts by weight of a conductive filler and about 0.01 to about 30 parts by weight of a disulfide compound. The composition can improve impregnation of the conductive filler into the thermoplastic resin.

Abstract: An electrochemical device comprising an electrolyte and at least one electrode plate, the electrochemical device having a metal part constituting the electrode plate or being connected to the electrode plate; the electrolyte comprising a solute and a solvent dissolving the solute; the metal part having an insulating oxide layer for preventing the electrolyte from creeping on at least part of the surface of the metal part.

Abstract: The invention relates to a bipolar battery cell having a built-in discharge circuit that can automatically balance the charged conditions. The bipolar battery cell includes a plurality of bipolar electrodes, each including a collector having a positive-electrode layer on one surface and a negative-electrode layer on another surface. The bipolar battery cell further includes a plurality of electrolyte layers that exchange ions between the bipolar electrodes, and a discharge circuit that electrically connects adjacent bipolar electrodes. The discharge circuit is provided on the same surface of at least one layer of the positive-electrode layers, the negative-electrode layers, or the electrolyte layers. Multiple bipolar battery cells are combined to form an assembled battery for vehicular applications.

Abstract: A secondary battery comprising a power generating part and a charging part, wherein the power generating part comprises an acidic medium in which a first electrode is disposed and a basic medium in which a second electrode is disposed; the acidic medium and the basic medium are disposed adjacent to each other; at least one of the acidic medium or the basic medium includes at least one reactive substance; and the charging part comprises a reactive substance regenerating device which regenerates the reactive substance from power-generation products produced by electric power generation in the power generating part.

Abstract: The present invention relates to a plastics molding composition based on polyarylene sulfide and/or on liquid-crystalline plastic, where the molding composition comprises carbon black and graphite and/or metal powder, the carbon black has a specific surface area of from 500 to 1500 m2/g, and a dibutyl phthalate value of from 100 to 700 ml/100 g, and the graphite has a specific surface area of from 1 to 35 m2/g. The molding compositions of the invention have good conductivities, and better flowabilities and mechanical properties.

Abstract: The present invention provides for a construction for a bipolar plate for a fuel cell stack that enables the bipolar plate to be a more compliant member in the fuel cell stack. The bipolar plate can be configured to provide varying levels of compliance, as demanded by the design of the fuel cell stack. The bipolar plate can be more compliant than the diffusion media members and the active elements used to form the individual fuel cells. The compliant nature of the individual bipolar plates enables localized dimensional changes that occur within the fuel cell stack to be compensated by a localized deformation of the portions of the bipolar plate within that region. The bipolar plate has an internal coolant flow field where some opposing pairs of lands are spaced apart with a gap therebetween while other opposing pairs of lands are in contact with one another.

Abstract: An improved electrochemical single or multi-cell energy storage device and casing are provided. The casing may be a pair of U-shaped shells, a single foil piece or even a tube-shaped structure which encases the internal electrochemical cell stack. The energy storage device and casing advantageously exhibit low internal resistance, low ESR, a high voltage/capacity, and a low contact resistance between the internal stack and the outer casing.

Abstract: Highly dense shaped parts are produced with a powder metallurgic process. The parts are formed of an alloy that, besides of at least 20 weight % chromium, consists of iron and one or several additional alloy portions that in sum do not amount to more than 10 weight %. The part is produced by pressing and sintering to near final shape a ready-to-press powder where the additional alloy portions are introduced in form of a master-alloy powder. The master-alloy may contain the following variations: the additional alloy portions and the iron portions; or the additional alloy portions, the iron parts, and the chromium portions; or additional alloy portions and the chromium portions.

Abstract: Disclosed are a bipolar battery, a bipolar battery component and a method of manufacturing the same. The bipolar battery minimizes the occurrence of gas bubbles to provide superior battery performance. A battery element has a plurality of bipolar electrodes stacked upon one another while interposing separators therebetween. The bipolar electrode includes a collector formed with a cathode on one surface and an anode on the other surface. The component is a charging part with charging material disposed between collectors and separators to surround at least a periphery of the cathode and a periphery of the anode. An exhaust part is mounted to the charging part to exhaust a residual gas bubble from an inner space to outside of the inner space when stacking the bipolar electrodes.

Abstract: A bipolar battery and a battery assembly unit that reduces a current density change in a battery element is disclosed. The bipolar battery comprises a battery element configured by alternately stacking a bipolar electrode and an electrolyte layer, as well as cathode and anode terminal plates electrically connected to the battery element so as to extract the current from the battery element. In the bipolar battery, the total electrical resistance of the cathode and anode terminal plates along the surface direction is smaller than the total electrical resistance of the battery element along the stacking direction between the cathode and anode terminal plates.

Abstract: Bipolar batteries configured to minimize the introduction of gas bubbles and methods of manufacturing such batteries are taught herein. One bipolar battery includes an electrolyte layer, which includes a plurality of separators having permeability such that the electrolytes can penetrate therein, in a bipolar electrode wherein a cathode is formed at one side of a collector and an anode is formed at another side of the collector. A stack is formed by stacking the electrolyte layers upon one another. The electrolyte layer of the stack has a layer of overlayed separators.

Abstract: The present disclosure describes embodiments of bipolar plate electrode structures for use in an electrochemical battery assembly and a bipolar battery assembly utilizing the bipolar electrode plate structure as a fundamental building block. An exemplary bipolar electrode assembly can have an electrically isolated mechanical supporting plate sandwiched between two electrically conducting electrode substrate plates which are mechanically and electrically connected through holes in the supporting plate. Vapor and liquid tight sealing can be accomplished with an internal sealing ring placed in compression between and thermally bonded to the two conducting electrode substrates. The exposed metallic edges of the electrode supports and substrates can provide improved heat removal from the bipolar battery assembly. Associated construction methods are also described.

Abstract: An electrochemical device comprising an electrolyte and at least one electrode plate, the electrochemical device having a metal part constituting the electrode plate or being connected to the electrode plate; the electrolyte comprising a solute and a solvent dissolving the solute; the metal part having an insulating oxide layer for preventing the electrolyte from creeping on at least part of the surface of the metal part.

Abstract: An electrochemical cell is provided that includes a container, a cathode and anode disposed in the container, and a separator disposed between the anode and cathode. The cell further includes an extender either included in or separate from the cathode. An agent is further provided that interacts with soluble ionic species generated in the cathode to prevent the migration of the species to the anode.

Abstract: The subject of the present invention is a lithium electrochemical generator comprising two peripheral electrodes—one positive and the other negative—each comprising an electrically conductive substrate (13, 21) and an active layer (14, 20) that includes an active material, at least one bipolar electrode comprising a positive active layer (18) on a first electrically conductive substrate and a negative active layer (16) on a second electrically conductive substrate, the said substrates being fixed together and two separators (15, 19) flanking each bipolar electrode, in which generator the electrically conductive substrates of each bipolar electrode are made of identical or different materials chosen from aluminium and its alloys and the negative active material of the bipolar electrode prevents an aluminium alloy being obtained with the electrically conductive substrates, under the operating conditions of the storage battery.

Abstract: A bipolar battery includes a bipolar electrode and an electrolyte layer. The bipolar electrode includes a current collector, a positive electrode layer formed on one surface of the current collector, and a negative electrode layer formed on the other surface of the current collector. The bipolar electrode is sequentially laminated to provide connection in series via the electrolyte layer to form a stack structure. The positive electrode layer, the negative electrode layer and the electrolyte layer are potted with a resin portion.

Abstract: A cell electrode of the present invention has a current collector and an active material layer formed on the current collector. The active material layer contains: an active material in which a mean particle diameter is more than 1 ?m to 5 ?m or less and a BET specific surface area is 1 to 5 m2/g; and a conductive material of which content is 3 to 50 mass % with respect to 100 mass % of the active material.

Abstract: A battery structure for improving a heat dissipating property and a vibration absorbing performance. The battery structure comprises a plurality of unit cell layers, each formed by alternately stacking a cathode active material layer formed on a surface of one collector, a separator for retaining an electrolyte and an anode active material layer formed on a surface of another collector. The battery structure also comprises a heat dissipating member disposed between at least one unit cell layer and another unit cell layer.

Abstract: A bipolar battery comprises: a plurality of bipolar electrodes; electrolyte layers formed between adjacent ones of the plurality of bipolar electrodes, respectively; sealing portions surrounding and sealing the electrolyte layers, respectively; and contributing members contributing to keeping gaps between the adjacent ones of the plurality of bipolar electrodes, respectively. The contributing members are disposed within areas of the sealing portions, respectively.

Abstract: A battery is basically provided with an electricity generating element and a discharging section. The electricity generating element has a plurality of electric cells connected in series. The discharging section constantly discharges electricity from each of the electric cells at a prescribed discharge rate so that a voltage in each of the electric cells is lower than a voltage corresponding to a prescribed depth of discharge. The battery is especially useful in a power supply component of a vehicle.

Abstract: The present invention relates to a bipolar battery, especially a NiMH battery, having: a sealed housing, a negative end terminal, a positive end terminal, and at least one biplate assembly comprising a biplate, a positive and a negative electrode. A separator is arranged between each negative and positive electrode forming a battery cell, said separator includes an electrolyte. An inner barrier of a hydrophobic material is arranged around at least one electrode, whereby said inner barrier prevents an electrolyte path from one cell to another cell, and a frame is present to provide predetermined cell spacing between each biplate and/or biplate and end terminal. The frame is attached in such a way to each biplate to permit ambient gas to pass between adjacent cells, thereby creating a common gas space for all cells in the battery. The invention also relates to a method for manufacturing a bipolar battery.

Abstract: A method and apparatus are disclosed wherein a battery comprises an electrode having at least one nanostructured surface. The nanostructured surface is disposed in a way such that an electrolyte fluid of the battery is prevented from contacting the electrode, thus preventing discharge of the battery when the battery is not in use. When a voltage is passed over the nanostructured surface, the electrolyte fluid is caused to penetrate the nanostructured surface and to contact the electrode, thus activating the battery. In one illustrative embodiment, the battery is an integrated part of an electronics package. In another embodiment, the battery is manufactured as a separate device and is then brought into contact with the electronics package. In yet another embodiment, the electronics package and an attached battery are disposed in a projectile that is used as a military targeting device.

Abstract: A bipolar battery comprises a bipolar electrode having a positive electrode layer on one side of a collecting foil and a negative electrode layer on the other side of the collecting foil, and a polymer electrolyte layer disposed between the bipolar electrodes. In the bipolar battery, an insulation layer is provided on a periphery of at least one side of the collecting foil.

Abstract: A bipolar battery comprises a bipolar electrode in which a positive electrode is provided on one surface of a collector and a negative electrode is provided on the other surface of the collector, a gel electrolyte sandwiched between the positive electrode and the negative electrode, and a sealing layer which is provided between the collectors and surrounds a periphery of a single cell including the positive electrode, the negative electrode, and the gel electrolyte.

Abstract: The present invention relates to an electrically conductive element for an electrochemical cell comprising an electrically conductive corrosion-susceptible metal substrate having a surface susceptible to passivation by forming oxides in the presence of oxygen. The surface is treated to remove any oxides present, and then is overlaid with an electrically conductive corrosion-resistant coating comprising one or more elements from Groups 4, 5, 10, or 11 of the Periodic Table, and then a corrosion-resistant electrically conductive polymer-based coating. The underlying substrate thus has improved corrosion-resistance while maintaining electrical conductivity. Other preferred aspects of the present invention include methods of treating the electrically conductive contact element to resist corrosion while still maintaining electrical conductivity.

Abstract: The present invention relates to a bipolar battery having at least two battery cells comprising: a sealed housing, a negative end terminal, a positive end terminal, at least one biplate assembly arranged in a sandwich structure between said negative and positive end terminals, and a separator, including an electrolyte, arranged between each negative and positive electrode forming a battery cell. The biplate assembly is provided with an inner barrier of a hydrophobic material around the negative and the positive electrode, respectively, and an outer seal around the edge of each biplate. Each end terminal is provided with a terminal seal. The edge of each biplate is positioned close to the sealed housing to provide means to conduct heat from each biplate assembly to the ambient environment. The invention also relates to a method for manufacturing a bipolar battery and a biplate assembly.

Abstract: An electrode for an energy storage device, including a substrate of at least one metal that forms a native oxide layer; and a treated layer formed on the substrate from the native oxide layer, the treated layer having a resistance that is less than the resistance of a native oxide layer. In some embodiments, the treated layer possesses at least one of the following properties: includes one or more dopants, is thinner than the native oxide layer, has a carbon coating that is applied to the treated layer which improved adhesion characteristics, and others. Further, there is an energy storage device having two or more of such electrodes, wherein the device has a low initial ESR and/or a low ESR at various intervals. Moreover, disclosed is a low resistance metal including a substrate of at least one metal that forms a native oxide layer; and a treated layer formed on the substrate from the native oxide layer, the treated layer having a resistance that is less than the resistance of a native oxide layer.

Abstract: A new sandwich positive electrode design for a secondary cell is provided comprising a “sacrificial” alkali metal along with a cathode active material. In the case of silver vanadium oxide, the sacrificial alkali metal is preferably lithium. Upon activating the cells, the lithium metal automatically intercalates into the silver vanadium oxide. That way, the sacrificial lithium is consumed and essentially lithiates the silver vanadium oxide. This means that cathode active materials, such as silver vanadium oxide, which before now were generally only used in primary cells, are now useful in secondary cells. In some use applications, silver vanadium oxide is more desirable than typically used lithiated cathode active materials.

Abstract: An electric device has a plurality of cells in which in an acid electrolyte a lanthanide and zinc form a redox couple that provide a current, and in which at least two of the cells are separated by a bipolar electrode that comprises a glassy carbon or a Magneli phase titanium suboxide.

Abstract: The present invention discloses a fuel cell, which incorporates a bipolar plate. The regenerative bipolar fuel cell of the present invention contains at least one hydrogen electrode in contact with a hydrogen stream and at least one oxygen electrode in contact with an oxygen stream. At least one electrolyte chamber is in contact with the hydrogen electrode and at least one electrolyte chamber is in contact with the oxygen electrode. The electrolyte chambers provide mechanical support within the fuel cell and provide an uninterrupted pathway for an electrolyte solution to contact the hydrogen electrode and the oxygen electrode, respectively. At least one bipolar plate is positioned between the hydrogen electrode and the oxygen electrode. The bipolar plate has a hydrogen side in contact with the hydrogen electrode and an oxygen side in contact with the oxygen electrode.

Abstract: A battery comprises an acid electrolyte in which a compound provides acidity to the electrolyte and further increases solubility of at least one metal in the redox pair. Especially preferred compounds include alkyl sulfonic acids and alkyl phosphonic acids, and particularly preferred redox coupled include Co3+/Zn0, Mn3+/Zn0, Ce4+/V2+, Ce4+/Ti3+, Ce4+/Zn0, and Pb4+/Pb0.

Abstract: Microthin sheet technology is disclosed by which superior batteries are constructed which, among other things, accommodate the requirements for high load rapid discharge and recharge, mandated by electric vehicle criteria. The microthin sheet technology has process and article overtones and can be used to form thin electrodes used in batteries of various kinds and types, such as spirally-wound batteries, bipolar batteries, lead acid batteries silver/zinc batteries, and others. Superior high performance battery features include: (a) minimal ionic resistance; (b) minimal electronic resistance; (c) minimal polarization resistance to both charging and discharging; (d) improved current accessibility to active material of the electrodes; (e) a high surface area to volume ratio; (f) high electrode porosity (microporosity); (g) longer life cycle; (h) superior discharge/recharge characteristics; (i) higher capacities (A·hr); and (j) high specific capacitance.

Abstract: An electrochemical device includes electrodes stacked one on the other with a separator intervening between the adjacent electrodes. The electrode includes a current collector and an electrode layer stacked on the current collector via an adhesive resin layer. The electrode layer contains an active material, an electrically conductive auxiliary and a binder resin. At least part of the electrically conductive auxiliary or the active material penetrates the adhesive resin layer to establish an electrical connection with the current collector.

Abstract: The present invention is drawn to a high power electrochemical energy storage device, comprising at least one stackable, monolithic battery unit. The monolithic battery unit includes at least two electrochemical energy storage cells. The cells have a lithium ion insertion anode and a lithium ion insertion cathode, a bipolar current collector between cells and end plate current collectors at the opposing ends of each battery unit. A frame may be associated with the perimeter of the current collector. The current collector comprises a high-conductivity metal. The device also has the at least two storage cells substantially aligned adjacent one another, a separator material associated between the anode and the cathode within each cell; and an electrolyte within each cell. Additionally, the present invention is drawn to a device combining two or more of the monolithic units, either in series or in parallel or any combination thereof, so as to create a high power, high voltage energy storage device.

Abstract: The bipolar electrochemical battery of the invention comprises: a stack of at least two electrochemical cells electrically arranged in series with the positive face of each cell contacting the negative face of an adjacent cell, wherein each of the cells comprises (a) a negative electrode; (b) a positive electrode; (c) a separator between the electrodes, wherein the separator includes an electrolyte; (d) a first electrically conductive lamination comprising a first inner metal layer and a first polymeric outer layer, said first polymeric outer layer having at least one perforation therein to expose the first inner metal layer, said first electrically conductive lamination being in electrical contact with the outer face of the negative electrode; and (e) a second electrically conductive lamination comprising a second inner metal layer and a second polymeric outer layer, said second polymeric outer layer having at least one perforation therein to expose the second inner metal layer, said second electrically c

Abstract: The invention concerns a battery including a metallic container (1) delimiting a cavity (16) containing an electrolyte and a composite strip (2) formed by a first metallic sheet coated with a material forming the positive electrode, by a second metallic strip coated with a material forming the negative electrode and by porous insulating separators, composite strip (2) being wound onto a core (20) located at the centre of the cavity (16) and electrodes being connected by connecting means (8, 9) to external terminals (6, 7). It is characterized in that all or part of the central core (20) is made of a material with a high heat transmission coefficient in heat contact with at least the metallic closing cap (3).