Abstract: Embodiments described herein relate generally to electrochemical cells having semi-solid electrodes that are coated on only one side of a current collector. In some embodiments, an electrochemical cell includes a semi-solid positive electrode coated on only one side of a positive current collector and a semi-solid negative electrode coated on only one side of a negative current collector. A separator is disposed between the semi-solid positive electrode and the semi-solid negative electrode. At least one of the semi-solid positive electrode and the semi-solid negative electrode can have a thickness of at least about 250 ?m.

Abstract: A method for producing a gas separation membrane containing fine particles uniformly dispersed in a resin, including the following (A) and (B): (A) a step of mixing the fine particles with a matrix resin, the amount of the fine particles with respect to the entire mass of the mixture being adjusted to 1 mass % to 50 mass %, to thereby prepare a master batch; and (B) a step including dissolving the master batch in a solvent, applying the prepared solution onto a substrate, and evaporating the solvent.

Abstract: Some embodiments are directed to a battery. The battery can include a case having a hollow accommodation cavity formed therein. The case having a material that includes a blend comprising at least one of polysulfone, acrylonitrile butadiene styrene (ABS), Nylon, polyphenylene oxide (PPO), styrene-acrylonitrile (SAN), and polypropylene. The material of the case enables removal of thermal energy generated during operation of the battery.

Abstract: A battery pack comprises first and second battery cells stacked in a vertical direction and a safety device that connects a first electrode lead provided in the first battery cell to a second electrode lead provided in the second battery cell to allow current to flow therebetween or separates the first electrode lead and the second electrode lead from each other to break the current when the first and/or second battery cells swell due to overcharging and/or overcurrent. In particular, the safety device comprises a connection member that electrically connects the first and second electrode leads to each other and a movable member that linearly moves the connection member when the first and second battery cells swell and separates the first electrode lead and the second electrode lead from each other, thereby breaking the current.

Abstract: A flexible secondary battery includes: an electrode stack assembly including a first electrode plate, a second electrode plate, and a separator between the first electrode plate and the second electrode plate; a first electrode tab electrically connected to the first electrode plate; and a second electrode tab electrically connected to the second electrode plate. One end of the first electrode tab and one end of the second electrode tab are disposed inside the electrode stack assembly and are stacked together with the first electrode plate, the second electrode plate, and the separator to form the electrode stack assembly. A first welding part is formed between, and binds, at least one of i) a portion of the first electrode plate and a portion of the first electrode tab and ii) a portion of the second electrode plate and a portion of the second electrode tab.

Abstract: The invention relates to a separator material (6) for forming a separator for a lead-acid accumulator, especially in the form of unfinished rolled product, and a method for the production thereof. The inventive separator material (6) comprises a first layer in the form of a microporous film (1) and at least one second layer in the form of a planar fleece material (7). At least one face of the microporous film (1), which is made of a thermoplastic material, is provided with a number of protrusions (2, 2?) defining an area with an increased film thickness on a basic film sheet. The fleece material (7) is welded to the film (1) by means of ultrasonic welding in such a way that the planar fleece material (7) is located at least at the level of the surface of the basic film sheet without invading the same in the area of the welded joints (8).

Abstract: A rechargeable battery according to an exemplary embodiment of the present invention includes: an electrode assembly including electrodes at opposite sides of a separator, each of the electrodes having a coated region and an uncoated region, and the electrodes and the separator being spirally wound; an insulating case for accommodating the electrode assembly and allowing the uncoated regions to be drawn out through respective uncoated region holes; a case for accommodating the insulating case; and a cap plate coupled to an opening of the case and allowing electrode terminals respectively coupled to the uncoated regions to be drawn out through respective terminal holes.

Abstract: A porous base substrate is infiltrated with a polymer material to form a hybrid substrate that combines the optical advantages of both. Prior to infiltration, the base substrate may exhibit relatively low optical transmittance. For example, the base substrate may be paper, textiles, aerogels, natural wood, or any other porous material. By infiltrating the base substrate with a polymer having a similar refractive index to that of the material of the base substrate, the transmittance can thus be improved, resulting in, for example, a transparent hybrid substrate that exhibits both relatively high optical haze and relatively high optical transmittance within the visible light spectrum. The hybrid substrate can thus serve as a base for fabricating electronic devices or can be coupled to electronic devices, especially optical devices that can take utilize the unique optical properties of the hybrid substrate.

Abstract: A non-aqueous electrolyte battery is provided with a bipolar electrode unit and an insulating layer including non-aqueous electrolyte. The insulating layer covers positive and negative electrode active material layers on both side surfaces of a current collector of a bipolar electrode of the unit. The unit is folded at every predetermined length to have flat portions arranged to face each other and bent portions arranged between the flat portions to connect the flat portions. A thickness of one part of the insulating layer of the electrode, the one part being positioned on an outer side surface of each bent portion, is set to be larger than a thickness of the other part of the insulating layer, the other part being positioned on each flat portion.

Abstract: A supercapacitor or electrochemical capacitor includes spaced apart electrodes which are separated from each other by a separator made of an electrically insulating material. Each electrode is formed of carbonaceous material and capable of being impregnated with a liquid electrolyte. Metal current collectors are provided on the sides of the electrodes opposite from the separator. The electrodes have holes or elongated orifices extending through the electrodes to reduce ionic impedance in order to produce faster charging and discharging of the device.

Abstract: The electrode (10) includes an electrically conductive surface (14) with a galvanic pellicle, or carbon nanotube mat (18), secured to the conductive surface (14). The pellicle (18) has a first surface (20) and an opposed outer surface (22) and defines an uncompressed thickness dimension (24) as a longest length of a straight axis (26) extending from the first surface (20) to the outer surface (22) of an uncompressed section (28) of the galvanic pellicle (18). Uncompressed sections (28) of the pellicle are defined between connected areas (30) and continuous connected areas (32) of the pellicle (18). Any point (35) within any uncompressed section (28) is no more distant from one of a nearest connected area (30) and/or a nearest segment (34) of a continuous connected area (32) than about ten times the uncompressed thickness dimension (24) of the pellicle (18), thereby achieving significantly reduced contact resistance.

Abstract: The invention is directed toward a battery pack. The battery pack includes at least one electrochemical cell; a case; a plate; an indicator circuit; and a battery-to-internal volume ratio. The case includes at least one open end. The plate is placed over the at least one open end. The plate includes a terminal plate, a base plate, or any combination thereof. The indicator circuit includes an integrated circuit and an antenna. The indicator circuit is affixed to the plate. The battery-to-internal volume ratio is greater than about 0.52.

Abstract: A system for erasing an ink from a medium includes the medium having the ink printed on a surface thereof, and an erasure fluid directly or indirectly applied to the surface, wherein the medium further includes another surface opposed to the surface upon which the ink is printed. An electrochemical cell includes an anode and a cathode. The anode formed from a semi-conductive or conductive carbon-containing material is positioned adjacent to one of: the surface of the medium upon which the ink is printed, or the other surface of the medium. The cathode formed from a semi-conductive or conductive carbon-containing material is positioned adjacent to another of: the other surface of the medium, or the surface of the medium upon which the ink is printed. The system further includes a power source to apply a voltage across the medium.

Abstract: The present invention relates to a stacked secondary battery that includes a laminated body, the laminated body including: a first electrode (10) in which a first electrode active material (12) is applied to both surfaces of a sheet-shaped collector (11), the first electrode having a first region (11a) to which the first electrode active material has been applied and a second region (11b) to which the first electrode active material has not been applied; a second electrode (20) in which a second electrode active material (22) different in polarity from the first electrode active material is applied to both surfaces (21) of a sheet-shaped collector; and a porous separator (30), the first and second electrodes being stacked via the porous separator, the first and second electrodes being stacked via the porous separator.

Abstract: A method of producing a gaseous diffusion electrode, including the provision of a stack comprising successively a diffusion layer for a gas, a catalytic layer and a diffusion layer for an electrolyte, the deformation of the stack in such a way as to place opposite one another first and second portions of one of the two diffusion layers, and the bonding of the first and second portions with the aid of a polymer material. A gaseous diffusion electrode is furnished with a stack comprising successively a diffusion layer for a gas, a catalytic layer and a diffusion layer for an electrolyte. Two portions of one of the two diffusion layers are disposed opposite one another and separated by a first layer of polymer material.

Abstract: The electrode (10) includes an electrically conductive surface (14) with a galvanic pellicle, or carbon nanotube mat (18), secured to the conductive surface (14). The pellicle (18) has a first surface (20) and an opposed outer surface (22) and defines an uncompressed thickness dimension (24) as a longest length of a straight axis (26) extending from the first surface (20) to the outer surface (22) of an uncompressed section (28) of the galvanic pellicle (18). Uncompressed sections (28) of the pellicle are defined between connected areas (30) and continuous connected areas (32) of the pellicle (18). Any point (35) within any uncompressed section (28) is no more distant from one of a nearest connected area (30) and or a nearest segment (34) of a continuous connected area (32) than about ten times the uncompressed thickness dimension (24) of the pellicle (18), thereby achieving significantly reduced contact resistance.

Abstract: A moss guard for a lead-acid battery cell includes a body and a plurality of fingers extending from a side of the body. The plurality of fingers are configured to substantially cover the top surfaces of negative electrodes between the negative electrodes and a positive strap. An end of at least one of the plurality of fingers distal to the body includes a lock, and the lock is configured to resiliently deflect between an engaged position and a disengaged position. The lock is configured to fix the moss guard with respect to positive lugs while in the engaged position.

Abstract: The timepiece includes sunrise and sunset indicating means taking account of seasonal variations, said means include a sphere reproducing the terrestrial globe, a shell arranged concentrically to the sphere and arranged to demarcate one portion of the terrestrial globe where it is night from another portion where it is day by indicating the position of the earth's terminator. The sphere is arranged to be driven by the movement so as to rotate at the rate of one revolution per 24 hours about a first axis of rotation oriented parallel to the plane of the dial, and the shell is mounted to pivot about a second axis perpendicular to the plane of the dial. The sunrise and sunset indicating means also include an annual cam arranged to be driven in rotation by the movement at the rate of one revolution per year, the cam having a profile representative of the tilt of the sun relative to the equatorial plane.

Abstract: To provide a power storage unit having a structure which is unlikely to break down by change in shape, such as bending. An electrode plate is covered with a sheet of an insulator which is folded in two. The sheet is preferably processed into a bag-like shape or an envelope-like shape by bonding overlapping portions of the sheet in the periphery of the electrode plate. The electrode plate and the sheet are fixed to an exterior body. In the case where the shape of the exterior body is changed by bending or the like, the electrode plate and the sheet can slide together in the exterior body. Thus, stress on the electrode plate due to bending can be relieved.

Abstract: Embodiments of the present invention facilitate a winding process and enable auxiliary current collectors to be securely fixed to a main current collector, thereby minimizing deformation during battery charging and discharging and maintaining sufficient strength. The jelly roll includes a first auxiliary current collector, a second auxiliary current collector, a mandrel insulating layer, and an electrode plate. The first auxiliary current collector and the second auxiliary current collector are spaced apart from each other and each has a mandrel protrusion on an opposite end portion. The mandrel insulating layer insulates the auxiliary current collectors from each other and insulates the auxiliary current collectors from an exterior. The electrode plate is formed by layering a separator, a first electrode plate, a separator and a second electrode plate and is wound on an external surface of the mandrel insulating layer.

Abstract: A short-circuit between a positive electrode and a negative electrode due to a deposit on an electrode plate is prevented in a power storage unit such as a lithium-ion secondary battery. An electrode plate is covered by a folded insulating sheet. Bonding is performed on facing edges of the sheet which overlap with each other in a portion outer than the electrode plate. One or more openings are formed in the electrode plate, and the facing edges of the folded sheet are bonded to each other also in the opening. Such a bonding portion enables the sheet to be in closer contact with the electrode plate and prevents the displacement between the sheet and the electrode plate. When the electrode plate is deformed or vibrated, the sheet can be rubbed against a surface of the electrode plate, thereby removing a deposit from the surface of the electrode plate.

Abstract: A separator (1) for electrode plates (2) in gel storage batteries having two substantially rectangular layers (3, 3?) of a flat separator material, which layers come to lie in mutually superposed relationship. In order to provide less expensive separators for the separation of plate electrodes in gel storage batteries, which have a low electrical resistance and which afford additional protection for the edges and side surfaces and at the same time permit homogenous gel filling of the storage battery, the invention proposes that the two layers of separator material are connected together at least portion-wise in the region of their edges, forming a casing or pocket for the introduction of an electrode plate and a method and battery employing the separator.

Abstract: Disclosed herein is a method of manufacturing a battery cell having an electrode assembly of a cathode/separator/anode structure disposed in a battery case made of aluminum or an aluminum alloy together with an electrolyte in a sealed state, the method including (a) anodizing an entire surface of the battery case in a state in which a connection opening section, to which charge pins used to activate the battery cell are connected, is formed at a bottom of the battery case, (b) mounting the electrode assembly in the battery case and connecting a cap plate to an open upper end of the battery case by laser welding, (c) injecting an electrolyte through an electrolyte injection port of the cap plate and activating the battery cell, and (d) replenishing the electrolyte and sealing the electrolyte injection port.

Abstract: According to one embodiment, a plate or electrode for a lead-acid battery includes a grid of lead alloy material, a paste of active material applied to the grid of lead alloy material, and a nonwoven fiber mat disposed at least partially within the paste of active material. The nonwoven fiber mat includes a plurality of fibers, a binder material that couples the plurality of fibers together, and a conductive material disposed at least partially within the nonwoven fiber mat so as to contact the paste of active material. In some embodiments, the nonwoven fiber mat may have an electrical resistant of less than about 100,000 ohms per square to enable electron flow on a surface of the nonwoven fiber mat.

Abstract: The present invention relates to an electrode for a non-aqueous electrolyte secondary battery, a non-aqueous electrolyte secondary battery using the electrode, and a method for manufacturing the non-aqueous electrolyte secondary battery. The electrode for a non-aqueous electrolyte secondary battery includes a material mixture layer containing an active material and a porous insulating layer. The insulating layer is formed on the material mixture layer. The insulating layer contains a resin having a cross-linked structure and inorganic particles. A mixed layer that includes components of the insulating layer and components of the material mixture layer is provided at the interface between the insulating layer and the material mixture layer.

Abstract: On each negative plate (1), a non-woven fabric (2) composed of fibers of at least one material selected from a group of materials comprising glass, pulp and polyolefins comes into contact with the entire surface of the plate without being integrated with the plate. Each negative plate (1), which is in contact with the non-woven fabric (2), is contained in an envelope separator (3) comprising a microporous synthetic resin sheet, and is laminated with a positive plate (4). The non-woven fabric is manufactured through papermaking process in which glass fibers, pulp and silica powder are preferably used and dispersed in water as the main components.

Abstract: Rechargeable electrochemical battery cell having a housing (1), a positive electrode (11), a negative electrode (10) and an electrolyte (9) which contains SO2 and a conducting salt of the active metal of the cell, wherein at least one of the electrodes (11) is enveloped by a sheath (13) made from a glass fiber textile material, the areal extent of the sheath (13) made from glass fiber textile material being greater than the surface area of the electrode (11), so that the glass fiber textile material extends beyond the limit (14) of the electrode, the electrode, and two layers (15, 16) of the glass fiber textile material which cover the electrode (11) on both sides are connected to one another at the edge of the electrode (11) by an edge connection (17).

Abstract: A battery element (2) includes a positive electrode and a negative electrode stacked via a separator. A collector portion (3) is formed by collectively bonding each of positive electrode plates and negative electrode plates which extend outward from this stacked region. Laminated films (5, 6) are obtained by laminating a thermally-fusible resin layer and a metal layer, and by sealing the battery element (2) and electrolyte by thermally fusing sealing portion (8) at a peripheral edge. A tab (4) is connected to collector portion (3) and extends outward from the laminated films (5, 6). An overlaying member (7) includes a protective region (7d) which protects the laminated films (5, 6) from corners (2c) of the battery element (2), corners (3c) of the collector portion (3) and corners (4c) of the tab (4), and a communication portion (7c) through which electrolyte can pass.

Abstract: The prevention of lithium clusters from bridging between the negative and positive portions of a cell during discharge is described. This is done by providing a glass wool material at an intermediate location between the casing and anode current collector of a negative polarity and the cathode current collector and the terminal pin being of a positive polarity. Typically, a lithium ion concentration gradient sufficient to cause lithium cluster formation is induced by the high rate, intermittent discharge of a lithium/silver vanadium oxide (Li/SVO) cell. However, sufficient free electrolyte necessary for normal cell function is held in the relatively large pore volume throughout the extent of the glass wool material. Moreover, permeability within the glass wool material is tortuous, which effectively increases the distance between the negative and positive surfaces of the anode and cathode.

Abstract: A method of manufacturing a rechargeable battery includes continuously supplying a first electrode plate, the first electrode plate including a plurality of first active material portions with gaps therebetween on a first current collector, continuously supplying a first separator and a second separator to respective surfaces of the first electrode plate, bending the first electrode plate with the first and second separators to form a zigzag structure with bent portions, supplying a second electrode plate to an inside of each bent portion of the zigzag structure, the second electrode plate including a second active material portion on a second current collector, aligning and stacking the first electrode plate, the first separator, the second separator, and the second electrode plate, and taping the aligned and stacked first electrode plate, first separator, second separator, and second electrode plate at an outermost side thereof.

Abstract: Disclosed are ionically conductive membranes for protection of active metal anodes and methods for their fabrication. The membranes may be incorporated in active metal negative electrode (anode) structures and battery cells. In accordance with the invention, the membrane has the desired properties of high overall ionic conductivity and chemical stability towards the anode, the cathode and ambient conditions encountered in battery manufacturing. The membrane is capable of protecting an active metal anode from deleterious reaction with other battery components or ambient conditions while providing a high level of ionic conductivity to facilitate manufacture and/or enhance performance of a battery cell in which the membrane is incorporated.

Abstract: An example includes a method including forming a battery electrode by disposing an active material coating onto a silicon substrate, assembling the battery electrode into a stack of battery electrodes, the battery electrode separated from other battery electrodes by a separator, disposing the stack in a housing, filling the interior space with electrolyte, and sealing the housing to resist the flow of electrolyte from the interior space.

Abstract: A rechargeable battery having improved temperature detection performance of a resistor element. The rechargeable battery comprises a pouch in which an electrode assembly is embedded, a first terminal and a second terminal that are connected to the electrode assembly to be drawn out to one side of the pouch, a resistor element connected to the first terminal, and a pressing member that is coupled to the pouch and closely contacts one surface of the resistor element, having a positive temperature coefficient, to the pouch.

Abstract: Provide an electrochemical device offering a large capacity per current collector and a low internal resistance, which is also easy to assemble. Provided is a laminated sheet body 16S by inserting a negative-electrode continuous body 11BW between an adjacent pair of first current collectors 12a, 12a with their first current collector main units 12a1 connected together, and also between an adjacent pair of first current collectors 12a, 12a with their first tabs 12a2 connected together, with respect to a plurality of positive electrodes 11A arranged in the width direction apart from each other, after which the negative-electrode continuous body of the laminated sheet body is cut to the unit width dimension of an element to obtain a plurality of laminated bodies 16.

Abstract: A flat nonaqueous secondary battery with improved reliability is provided. The flat nonaqueous secondary battery (1) includes an electrode assembly disposed in a space formed by an exterior case (2) and a seal case (3). The electrode assembly includes a plurality of positive electrodes (5) and a plurality of negative electrodes (6) alternately stacked upon each other and a separator (7). The separator (7) has a joint (7c) formed by welding together at least a portion of its periphery. When the separator (7) and the positive electrode (5) are measured along a cross section in their thickness direction, the ratio A/B of the shortest distance A between the end of the joint (7c) of the separator (7) facing the positive electrode (5) and the outer periphery of the positive electrode (5) sandwiched by the separator (7) to the thickness B of the positive electrode (5) is not smaller than 1.

Abstract: An electrode assembly has a positive sheet, a negative sheet, and separators that are stacked and wounded. A joint portion is formed by thermally fusion bonding or compression bonding of the separators at one end in a width direction thereof so that one end of the positive sheet on an opposite side in a width direction with respect to a positive lead is wrapped by the separators. Arranged outside of the joint portion in the width direction is a separating portion where the separators are separated from each other. A protecting layer made of an insulating material is formed on the end face of the positive sheet. The positive sheet is reliably prevented from being in contact with a foreign material.

Abstract: The disclosed embodiments relate to the design and manufacture of a battery cell. The battery cell includes a cathode containing a first cathode active material and a second cathode active material with a lower first coulombic efficiency and a higher energy density than the first cathode active material. The battery cell also includes an anode containing a silicon-based anode active material and a carbonaceous anode active material. Finally, the battery cell includes a pouch enclosing the cathode and the anode, wherein the pouch is flexible. Such blending of cathode and anode active materials may increase the energy density of the battery cell while mitigating the loss of capacity caused by the reaction of the silicon-based active material with lithium during initial charging and discharging of the battery cell.

Abstract: There is provided an electrode assembly comprising at least one stacked and folded type electrode stack in which a plurality of electrode units having electrode tabs are stacked in a state that the electrode units are separated by a sheet of separating film. The stacked and folded type electrode stack includes at least one stepped portion formed of electrode units having different areas and stacked on one another.

Abstract: Embodiments of the invention provide batteries, electrodes, and methods of making the same. According to one embodiment, a battery may include a positive plate having a grid pasted with a lead oxide material, a negative plate having a grid pasted with a lead based material, a separator separating the positive plate and the negative plate, and an electrolyte. A nonwoven glass mat may be in contact with a surface of either or both the positive plate or the negative plate to reinforce the plate. The nonwoven glass mat may include a plurality of first coarse fibers having fiber diameters between about 6 ?m and 11 ?m and a plurality of second coarse fibers having fiber diameters between about 10 ?m and 20 ?m.

Abstract: Electrochemical cells and methods of making electrochemical cells are described herein. In some embodiments, an apparatus includes a multi-layer sheet for encasing an electrode material for an electrochemical cell. The multi-layer sheet including an outer layer, an intermediate layer that includes a conductive substrate, and an inner layer disposed on a portion of the conductive substrate. The intermediate layer is disposed between the outer layer and the inner layer. The inner layer defines an opening through which a conductive region of the intermediate layer is exposed such that the electrode material can be electrically connected to the conductive region. Thus, the intermediate layer can serve as a current collector for the electrochemical cell.

Abstract: A secondary battery includes a case comprising a body having a cavity and a cover sealed to the body; and an electrode assembly in the cavity, the electrode assembly including a first electrode plate having a coated portion coated with a first active material and an uncoated portion not coated with the first active material; a second electrode plate having a coated portion coated with a second active material; and a separator between the first electrode plate and the second electrode plate, wherein the first electrode plate, the second electrode plate and the separator are stacked together, and wherein the first electrode plate and the second electrode plate have substantially the same surface area.

Abstract: Four sides of a rectangular bag-like separator 10 are composed of two adjacent separator thermo-bonding sides 10a and 10c where thermo-bonding portions are formed and of two adjacent insertion opening sides 10b and 10d forming one insertion opening 11 into which an electrode 30 can be inserted. A thermo-bonding section is formed in a portion of at least one of the insertion opening sides 10b and 10d.

Abstract: The present invention relates to a stacked secondary battery that includes a laminated body, the laminated body including: a first electrode (10) in which a first electrode active material (12) is applied to both surfaces of a sheet-shaped collector (11), the first electrode having a first region (11a) to which the first electrode active material has been applied and a second region (11b) to which the first electrode active material has not been applied; a second electrode (20) in which a second electrode active material (22) different in polarity from the first electrode active material is applied to both surfaces (21) of a sheet-shaped collector; and a porous separator (30), the first and second electrodes being stacked via the porous separator, the first and second electrodes being stacked via the porous separator.

Abstract: A lithium ion battery includes a casing, a cell assembly received in the casing, a cap assembly encapsulating the casing and electrolyte filling within the casing. The cell assembly comprises a number of stacked electrode plates and a separator sandwiched between two stacked electrode plates. The electrode plates comprise positive electrode plates and negative electrode plates. Each positive electrode plate is provided with a pair of negative electrode plates positioned on opposite sides of the positive electrode plate.

Abstract: An electrochemical device capable of being mounted by soldering includes a film package made of a film; an electrodes part encapsulated together with an electrolyte in said film package; a pair of terminals, one end of each terminal being connected to said electrodes part and another end of each terminal being exposed to an exterior of said film package; and an armor in contact with a substantially entire surface of said film package and in contact with partial surfaces of the exposed ends of said pair of terminals, respectively, to encapsulate said film package, said armor exposing remaining portions of said pair of terminals to an exterior of the armor.

Abstract: Provided is a battery which can reduce expansion caused by gas emission when stored at high temperature. A secondary battery (1) is constructed such that a flat wound electrode (20) as a power generating element is sandwiched between exterior members (30a, 30b), having adhesion layers (40a, 40b) interposed therebetween. The adhesion layers (40a, 40b) are, for example, two-sided adhesive tapes and have a structure such that adhesive layers are formed on both surfaces of a thin plate-shaped support layer. The support layer is preferably made of polypropylene or polyimide. The adhesion layers (40a, 40b) are composed of maleated polypropylene whose melting point is preferably in a range from 100° C. to 200° C., more preferably, in a range from 140° C. to 180° C.

Abstract: The present invention relates to metal foil encapsulation of an electrochemical device. The metal foil encapsulation may also provide contact tabs for the electrochemical device. The present invention may also include a selectively conductive bonding layer between a contact and a cell structure.

Abstract: A battery separator for a lead acid (storage) battery is made from a thermoplastic sheet material. The sheet material has a central region flanked by peripheral regions. The central region includes a plurality of longitudinally extending ribs that are integrally formed from the sheet material. The peripheral regions are free of ribs and may include a densified structure. Also disclosed are a method of producing the foregoing separator, an envelope separator made from the sheet material, and a method of making the envelope separator.

Abstract: The present invention relates to metal film encapsulation of an electrochemical device. The metal film encapsulation may provide contact tabs for the electrochemical device. The present invention may also include a selectively conductive bonding layer between a contact and a cell structure. The present invention may further include ways of providing heat and pressure resilience to the bonding layer and improving the robustness of the protection for the cell structure.

Abstract: The battery according to the present invention includes, a first electrode plate which has a potential of a first polarity; a second electrode plate which includes a contact unit, and has a potential of a second polarity; a separator which is arranged between the first electrode plate and the second electrode plate; and a conductive battery container in which the first electrode plate, the second electrode plate, and the separator are accommodated, and in which the contact unit comes into contact with the battery container.