Abstract: The invention provides a closed type battery having no electrolyte leakage, etc. and improved airtightness, which comprises a battery header in which an electrode-drawing sheet of polarity opposite to that of a battery can is fixed by caulking to an insulating member fitted into a through-hole in a metal sheet while an electrode-leading pin remains inserted into the through-hole. An internal insulating sheet mounted on the surface of the metal sheet of the battery header located inside the battery can comes into contact at two or more surfaces with an external insulating sheet mounted on a surface of the metal sheet of the battery header located outside the battery can.

Abstract: A secondary cell capable of ensuring thermal and mechanical stabilities required for a high-capacity cell with a simple structure is provided. The secondary cell includes: a can; and an electrode jelly-roll wound with two different electrodes and a separator interposed between the electrodes therein and accommodated in the can, the outer surface of the electrode jelly-roll being wound around one more turn with the separator. Only the separator is wound at the core of the electrode jelly-roll to form a rod-like stability member which is cured by absorbing heat generated from the cell. The separator wound at the core of the electrode jelly-roll is continuous from a portion of the separator which is stacked with the two different electrodes.

Abstract: The present invention relates to a bipolar battery having at least two battery cells comprising: a negative end terminal, a positive end terminal and at least one biplate assembly arranged in a sandwich structure between the negative and positive end terminals. The battery also comprises a separator, with electrolyte, arranged between each negative and positive electrode forming a cell. An inner barrier of a hydrophobic material is arranged at least around one electrode on a first side of the biplate. An outer sealing, e.g. a frame, is provided around the edge of each biplate assembly and each end terminal and a hole is arranged through each biplate interconnecting each cell with adjacent cell(s) to create a common gas space for all cells in the battery. The invention also relates to a biplate assembly.

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: To improve an impregnation property of an electrolyte and the cycle characteristics, which have been a problem in the case of employing a casing having a variable shape.

Abstract: A battery includes a container with electrolyte filled therein and a plurality of positive plates, a plurality of separation layers and a plurality of negative plates are alternatively arranged in the container. The negative plates are connected to an inside of a negative end of the container and the positive plates are connected to a nickel member which is connected to an upper plate in a positive end of the container. An alkali proof rubber is located between the nickel member and the upper plate. A positive cap is connected to the upper plate and extends from a positive end of the container.

Abstract: An electrochemical device comprising alternating layers of positive and negative electrodes separated from each other by separator layers. The electrode layers extend beyond the periphery of the separator layers providing superior contact between the electrodes and battery terminals, eliminating the need for welding the electrode to the terminal. Electrical resistance within the battery is decreased and thermal conductivity of the cell is increased allowing for superior heat removal from the battery and increased efficiency. Increased internal pressure within the battery can be alleviated without damaging or removing the battery from service while keeping the contents of the battery sealed off from the atmosphere by a pressure release system. Nonoperative cells within a battery assembly can also be removed from service by shorting the nonoperative cell thus decreasing battery life.

Abstract: The present invention provides a nonaqueous electrolyte secondary battery, comprising a battery element produced by laminating and winding up a positive electrode and a negative electrode with a separator interposed therebetween. A separator is not provided on the outermost periphery of the battery element. A current collector surface of one of the positive electrode or the negative electrode is exposed to the ambient environment. A separation-preventive tape is attached on the battery element except a portion of one of the longer sides on the outermost periphery. This battery increases battery capacity of the thin-walled type nonaqueous electrolyte secondary battery.

Abstract: The present invention relates to a lithium secondary cell and a method of fabricating the same. The lithium secondary cell; a plurality of cathode plates having a desired size and adhered on one surface of the separator film while being uniformly spaced apart from one another; a plurality of anode plates having a desired size and adhered on the other surface of the separator film at spaced positions corresponding to the cathode plates; and the separator film attached with the anode plates and the cathode plates being repeatedly folded such that the anode plates and the cathode plates are arranged in an alternating fashion. Thus, the lithium secondary cell has improved performance and particularly safety by preventing a firing caused by high current and excessive voltage charged, while having various shapes and sizes, and a desired capacity and achieving a simplified fabrication.

Abstract: An object of the present invention is to provide a battery having a film-type casing which is excellent in energy density as well as in strength. Disclosed is a battery having a film-type casing that houses an electrode body, the casing being formed of a film folded together, and the electrode body being formed of at least one positive electrode plate and negative electrode plate laminated together with a separator sandwiched between the electrode plates and having at least one rectangular-shaped outer surface, the battery comprising a reinforcing sheet attached the electrode body so as to cover an area of the rectangular-shaped outer surface corresponding to at least one corner of the positive electrode plate. With this structure, an impact of a drop to a corner of the casing is absorbed by the reinforcing sheet, which prevents the positive electrode from tearing the separator and thus from electrically shorting with the negative electrode plate.

Abstract: A battery positive grid is continuously cast of lead and thereafter cold worked to reduce its cross sectional thickness to change the microstructure of the lead and provide enhanced corrosion resistance and other properties needed for positive grids. The as cast thickness of the positive grids is reduced by not more than ½ or 2 to 1, to produce a positive grid with a lead weight of 0.5 to 2.1 grams per square inch of the area of the plan of the cold worked grid which improves the life of a battery in which it is used. A battery negative grid is continuously cast of lead and thereafter cold worked to reduce its cross sectional thickness to increase the ultimate tensile strength needed for a lighter negative grid with a lead weight of 0.3 to 0.9 of a gram per square inch of the area of its plan. The as cast thickness of the negative grids is reduced in the range of about 1.2:1 to less than 1.5:1 to produce the desired properties for negative grids after age hardening.

Abstract: A battery system having lead-acid cells, vertically upstanding cell support frame for supporting the cells, vertically upstanding members with receptacle means for slidably receiving and retaining vertical cell supports, and manually assemble means for connectively maintaining and spacing the upstanding members for receipt of the cell supports. The cells have horizontal positive and negative sandwiched lead-metal plates contained within a cell case resting on the vertical supports. The case has an expandable region surrounding the terminal for relieving pressure on that terminal from grid expansion while simultaneously maintaining the integrity of the case seal to the terminal. The cell support frame includes an elongated strap external of the case for connecting together terminals of the cell and having an output terminal and a central portion on the strap for electric communication with another battery.

Abstract: The present invention relates to an electrochemical element, specifically an electrochemical element with improved energy density comprising stacked electrochemical cells. In order to achieve such objects, the present invention provides an electrochemical element comprising electrochemical cells which are multiply stacked, said electrochemical cells formed by stacking full cells or bicells having a cathode, a separator layer, and an anode sequentially as a basic unit, and a separator film interposed between each stacked cell wherein, said separator film has a unit length which is determined to wrap the electrochemical cells, and folds outward every unit length to fold each electrochemical cell in a Z-shape starting from the electrochemical cell of a first spot to the electrochemical cell of the last spot continuously while the remaining separator film wraps an outer portion of the stacked cell and a method for manufacturing the same.

Abstract: The present invention relates to an electrochemical element, specifically an electrochemical element with improved energy density comprising multiply stacked electrochemical cells. In order to achieve such objects, the present invention provides an electrochemical element comprising electrochemical cells which are multiply stacked, said electrochemical cells formed by stacking full cells having a cathode, a separator layer, and an anode sequentially as a basic unit, and a separator film interposed between each stacked full cell wherein, said separator film has a unit length which is determined to wrap the electrochemical cells and folds inward every unit length to wrap each electrochemical cell starting from the center electrochemical cell to the outermost electrochemical cell continuously.

Abstract: A battery case for a battery containing swellable cellulose separators including case members having opposed undulating mating surfaces and a rim and groove sized to space the surfaces a predetermined distance apart to form a gripping channel such that the outer portion of a stack of dry separators occupies at least 80% but no more than 98% of said channel. On injecting liquid electrolyte into the case, the separators swell and are securely gripped by said undulations and mating surface.

Abstract: Systems and methods for producing a multilayer thin film energy storage device having a plurality of thin film battery cells arranged to provide a higher output than a single cell thin film battery. The thin film battery cells are configured so that they stacked one on another with at least one thin film battery cell positioned upside down on top of another thin film battery cell. Alternatively, the thin film battery cells may be arranged in a side-by-side configuration. Each thin film battery cell includes a thin film layer of cathode material and anode material with an electrolyte material disposed between and separating the cathode material and anode material. A thin film current collector is positioned adjacent to each cathode and anode thin film layer. The particular pattern of thin films of current collectors, anodes, electrolytes and cathodes serves to a provide a high output necessary for particular applications.

Abstract: An electrochemical device comprises a pair of electrodes (31, 32) having electrode layers (31b, 31c, 32b, 32c) formed on strip-like collectors (31a, 32a) except on their strip-like portions (31ax, 32ax) along a longitudinal side of the strip-like collectors; striplike separators (33a, 33b) insulating these; two collector plates (72, 73) connected to the strip-like portions; a case (60) accommodating these; a lid (63) for sealing the case; a pair of terminals (91, 92) connected to the collector plates and being connectable to an outside of the case. The pair of terminals are respectively connected to the lid and the case, and the pair of electrodes are wound interposing the separators therebetween, and the strip-like portions are located on both end surfaces. The electrochemical device has high volume density and low internal resistance and it can be manufactured in short time.

Abstract: The invention relates to a non-aqueous secondary battery comprising an electrode group composed by confronting thin positive electrode and negative electrode through a separator, and it is an object thereof to enhance the safety outstandingly without sacrificing the cell capacity more than necessary and without increasing the number of parts. To achieve the object, a metal foil for positive electrode collector is electrically connected to the positive electrode, and the exposed portion of the metal foil for positive electrode collector covers the entire outer surface of the electrode group where the negative electrode is positioned outside through the separator, and its outermost side is wrapped with a separator, and thus constituted electrode group is put into a negative polarity cell container together with non-aqueous electrolyte, and therefore in such severe conditions as to crush the cell, accidents such as cell fire and rupture can be completely eliminated.

Abstract: The present invention relates to an improved non-aqueous electrolyte cell comprising an anode, a cathode and a separator spirally wound so that the anode is disposed on the outer side of the cathode to form an electrode assembly. The outermost end of the cathode is wrapped with an electrically insulating material, the anode has a section provided with an anode current collector in the vicinity of the outermost end thereof, and the section is positioned beyond the wrapped outermost end of the cathode. A reaction suppressing layer is present between a cathode section in the vicinity of the outermost end and the anode positioned on the inner side thereof, thereby only the outer side of the cathode section substantially reacts with the anode. This cell ensures disconnection of remaining non-reacted anode component from the current collector when forcedly discharged at the last stage of discharge, causing little capacity loss.

Abstract: An edge protector for an electrode used in electrowinning processes in the edge protector is secured to the cathode using a guide rail and then is sealed using an expansion pin. The edge protector has a slot which mates with the guide rail. The edge protector is slid over the guide rail until the edge protector is in proper position. Once the edge protector is properly positioned, an expansion pins is pressed (or pounded) into a receiving notch on the outer aspect of the edge protector. In response to the expansion pin's insertion, the opposing side of the edge protector (having the sealing teeth) is pressed against the face of the cathode.

Abstract: In a nonaqueous-electrolyte secondary battery, it prevents short circuit between a positive electrode and a negative electrode even if pressure from the outside, or stress generated by folding is applied thereon, during the battery is manufactured, or when the battery is used as a product. In the lithium ion battery comprising a laminating structure, in which the positive electrode, gel-type macromolecular solid electrolyte layers in the positive electrode, separators, gel-type macromolecular solid electrolyte layers in the negative electrode, the negative electrode are laminated, two covering members are provided in ends of the positive electrode and the negative electrode, two pair of covering members are provided in a position on one electrode in either one of the positive electrode or the negative electrode oppose to the positions, in which the two covering members are provided.

Abstract: The present invention provides a nonaqueous secondary battery and a separator to be used therein. The separator comprises a polyolefin membrane containing one or more conjugated polyene compounds provided on the surface thereof. The nonaqueous secondary battery having this arrangement performs improved cycle life characteristics and shelf characteristics at high temperatures.

Abstract: A thin-film rechargeable battery includes a cathode film; including a lithium transition metal oxide, an electrolyte film coupled to the cathode film, the electrolyte film being substantially nonreactive with oxidizing materials and with metallic lithium, an anode current collector coupled to the electrolyte film; and an overlying layer coupled to the anode current collector. The thin-film rechargeable battery is activated during an initial charge by electrochemical plating of a metallic lithium anode between the anode current collector and the electrolyte film. The plating of the anode during charging and the stripping of the anode layer during discharging are essentially reversible. Therefore, almost no diminishment of discharge capacity occurs, even after many discharge and charge cycles. Other advantages include no need for special packaging for shipping and handling.

Abstract: A method and apparatus for more efficiently fusing the straps of pre-formed terminal post members with plate lugs of a battery plate group utilizing a non-reusable, inexpensive plastic mold insert. The method includes positioning the battery plate group into an open top container with the lugs of the positive plates in one row and the lugs of the negative plates in another row, positioning the plastic insert into the container with the lugs of the plate group extending upwardly through the mold insert, positioning the terminal post members on the plastic mold insert with fingers of the straps thereof disposed between plate lugs of the respective rows, supplying additional unmelted lead into remaining spaces between the plate lugs, and heating, melting, and fusing the plate lugs, strap fingers, and added lead by induction heating to form interconnections between the positive and negative plates in the respective terminals.

Abstract: The present invention provides a non-aqueous battery having a unit cell laminate, which comprises a positive plate with an active material of positive electrode only on a single face of a collector foil, a negative plate with an active material of negative electrode only on a single face of a collector foil, and a separator, arranged in a battery casing, wherein the single face of the positive plate with the active material of positive electrode and the single face of the negative plate with the active material of negative electrode are arranged to face each other across the separator, and the other face of the positive plate without the active material of positive electrode and the other face of the negative plate with the active material of negative electrode are arranged to face each other across an insulating film.

Abstract: A solid-polymer-electrolyte membrane for a polymer-electrolyte fuel cell is formed of a synthetic resin. The synthetic resin includes a main chain, and a hydrocarbon-based side chain. The main chain is formed as a film, and formed of a copolymer made from a fluorocarbon-based vinyl monomer and a hydrocarbon-based vinyl monomer. The hydrocarbon-based side chain involves a sulfonic group. The solid-polymer-electrolyte membrane exhibits a high strength and flexibility, but a low electric resistance, and can be produced at a reduced manufacturing cost. Thus, the solid-polymer-electrolyte membrane can be effectively applied to construct polymer-electrolyte fuel cells.

Abstract: A bipolar separator which is formed from a plate having opposing first and second surfaces which are compatible with fuel gas and an oxidant gas, respectively. The plate is formed with a central area, first and second opposing troughs extending from first and second opposing sides of the central area, and third and fourth opposing troughs extending from third and fourth opposing sides of the central area. In the regions of its third and fourth sides, the central area is bent over and around so that the third and fourth troughs face and are adjacent to the central area. The first surface of the separator defines the extent of a first surface of the central area and the extents of the inner surfaces of the troughs of the separator. Similarly, the second surface of the separator defines the extents of a second opposing surface of central area and the extents of the outer surfaces of the troughs.

Abstract: The invention concerns a method for producing a nondetachable, fluid-tight, and gastight connection between a plate stack (1) and a plate-shaped lateral component (3) of an electrochemical battery, and for spacing this plate stack (1), which is comprised of successive, thin-walled electrode plates with separator plates (4) disposed between each of them; the lateral component (3) is comprised of electrically non-conducting material. According to the invention, the lateral component (3) is guided spaced apart from and parallel to the respective face ends (5) of the electrode plates and separator plates (4) of the plate stack (1). Then the region of the face ends (5) and the side of the lateral component (3) oriented toward the plate stack (1) are simultaneously exposed to a temporary surface heating until they reach melting temperature and are then pressed against each other until the material cools.

Abstract: The present invention concerns forming a masked area on a porous separator material for use in a battery. Masked areas can be formed on the porous separator material with heat and/or pressure. The use of a masked area allows for easier alignment of the anode and cathode sections, such that edge effects do not occur. Edge effects, which result from the electrode sections having different surface areas, can cause differential current densities at the corners and edges of the electrode sections. This inhomogeneous cycling of the anode and cathode can cause premature cycle fade of the battery. The edge effects can also include dendritic growth of a lithium anode. The mask separator section can be connected to a solid electrolyte and a cathode section to form an assembly. This assembly can be later combined with an anode assembly to form a battery cell.

Abstract: Disclosed is a water-proof, gas pervious casing for a battery capable of containing a plurality of battery cells. The casing is made of a gas impervious, water-proof material that completely encapsulates the battery cells. A recessed region in the casing contains perforations, allowing gases to escape. This perforated recessed region is covered and filled with a plurality of layers of gas pervious sheets, one of which is water-proof. In addition to the recessed region, the exterior of the casing of the battery contains an electrical connector terminal which is surrounded with a water-proof seal. When the battery is installed in an electrical appliance, a cavity wall forms a water-proof seal with the battery to prevent moisture from entering the terminal region of the battery. On the exterior of the casing, adjacent to the recessed region, is a series of spacers are mounted which provide channels for exhaust gas to flow when the battery is snugly installed into the battery cavity of an electronic appliance.

Abstract: A device for a battery with a spacer preventing direct physical contact between first and second batteries arranged in physical series. A resilient conductor providing an electroconductive contact between a center electrode of the first battery and a terminal electrode of the second battery is held by the spacer.

Abstract: A high temperature rechargeable electrochemical cell which comprises a housing containing an anode separated from a cathode by a solid electrolyte separator. The separator is a hollow operatively upright electrode holder defined, in cross-section, by a plurality of peripherally spaced radially outwardly projecting lobes. The operatively lower end of the electrode holder is closed off and the electrode holder has at its operatively upper end a closure having an opening smaller than its cross-sectional dimension. A metallic current collector is disposed in said electrode holder. The current collector is inserted, in a first inoperative configuration, into the electrode holder through the closure opening, and thereafter extended into the lobes of the electrode holder, so that it assumes a second operative configuration in which it has a shape of larger cross-section than the opening.

Abstract: An insulator for use in a monopolar cell battery is provided in which the battery includes a first electrode in contact with the case and a second electrode which is not in contact with case. The insulator is a plate which is formed from a higher melting point salt which is provided adjacent the edges of the second electrode. The plate insulates the second electrode from the case. The salt used for the insulator has a melting point that is greater than the operating temperature of the battery.

Abstract: A lead acid storage battery has a cell composed of a positive plate comprising a positive active material layer and a positive current collector plate, a negative plate comprising a negative active material layer and a negative current collector plate, a separator and a frame-shaped gasket. In the cell, the positive plate and the negative plate are laminated with the gasket put between them. The gasket is in contact with peripheral edges of the positive current collector plate and the negative current collector plate. The positive active material layer and the negative active material layer are located in a cell space surrounded by both of the plates and the gasket with the separator put between them.

Abstract: Frames for batteries which are constructed of planar battery cells prevent the planar battery cells from shifting while the batteries are vacuum sealed. These frames do not add to the thickness of the batteries but have the advantage of increasing the rigidity of the battery, reducing the shifting of the battery cells during assembly, and preventing vulnerable edges which result in non-uniformities and low energy density. The interlocking frame design allows cells to be stacked onto a battery with relatively tight alignment, high volumetric efficiency and improved safety.

Abstract: An electrical energy storage device (10). An electrode (12) consisting of a thin film of metal or metal oxide is deposited on a substrate (24), preferably by sputtering. Spherical plastic spacers (16) are uniformly dispersed on the electrode at a maximum density of about 1000 spacers per square millimeter of the electrode area. A second substrate also has an electrode (14) formed of a thin film of metal or metal oxide deposited on it, similar to the first substrate. The first and second substrates are arranged so that the electrodes face each other and are separated by the spherical plastic spacers to form a gap (18) of about 20 microns between the electrodes. An electrolyte (20) is filled in the gap, and the edges of the gap are optionally sealed (22) to form the electrical energy storage device. The device may also be formed by using metal foils, and eliminating one or more of the substrates. In both cases, the use of an electrolyte is optional.

Abstract: An isolated, multipoint connection for a coiled electrode electrochemical cell which includes a cathode assembly with a cathode current collector having at least two connector tabs spaced apart on an edge of the current collector and an anode assembly having at least two connector tabs spaced apart on the edge of the anode assembly. Three barriers of nonconductive material are established to isolate the various components; a first nonconductive barrier which isolates the connector tabs from the remainder of the winding; a second nonconductive barrier which isolates the feedthrough and feedthrough pin from the case and from the anode elements; and a third nonconductive barrier established to separate the connections to the cathode connector tabs from the anode elements and from the case.

Abstract: A water-activated, primary reserve battery for use in an environment, such as the ocean, that provides an environmentally safe battery, especially useful in sonobuoys. The battery includes the use of cuprous iodide as a cathode and magnesium as the anode in an array to provide voltage, amperage, and operational time equivalent to conventional lead chloride batteries. Once the sonobuoy is no longer useful as it deteriorates in the environment, no lead will be presented into the ocean. The structural frame members protect the cuprous iodide which is brittle in a rigid array and provides for proper venting of gas and sludge formation to insure efficient operation of the battery.

Abstract: Improved polymer batteries and improved methods of manufacturing such polymer batteries are provided. One improved method of manufacture involves the formation of a laminated array structure that includes a number of individual battery cells. After formation of the laminated array the individual batteries are singulated from the array by cutting, shearing or stamping. Other manufacturing improvements include the use of a printing process (e.g. stenciling) to form the cathodes, the use of permanent mask layers to contain and insulate the cathodes and anodes, and the use of a molten lithium deposition process for forming the anodes.

Abstract: A lead acid storage battery comprising a battery container, a plate assembly assembled by stacking a negative electrode plate and a positive electrode plate one upon another through a separator interposed between the negative and positive electrode plates, and a saddle placed on the bottom surface of the battery container for absorbing the extension of the positive electrode plate. Legs of a negative electrode grid plate consisting of the negative electrode plate are larger in width than legs of a positive electrode grid plate consisting of the positive electrode plate.

Abstract: The preferred embodiment of the present invention relates to a sealed, oxygen recombinant lead-acid battery which includes a series of modules, e.g. 4-volt modules. The modules are prepared from frame and film assemblies which are easily stacked to the desired voltage or capacity. In the preferred embodiment, the assemblies include two 2.0 normal voltage cells, attached in series, three of which are then combined to form a 12-volt system. Modularity eliminates the need for expensive tooling and parts inventory and permits the creation of a wide variety of battery designs. Specially designed vents are employed to permit gas escape during overcharge or if recombination efficiencies are less than desired and to prevent entry of oxygen or moisture when the battery is in its recombinant mode.

Abstract: An electrode and separator composite composed of an electrode strip, such as a lithium strip, having a microporous separator secured to its surface in which the separator comprises a layer of insulating microspheres, such as glass microspheres measuring from 5 microns to 0.05 inch in diameter, partially embedded in the surface of the electrode strip.

Abstract: A high temperature molten salt bipolar stacked module battery is provided which electrolyte creepage between cells is shielded and compression maintained on the cell stacks during thermal cycling. In addition, the modular design of the individual cells lends this construction to high voltage battery make-up.

Abstract: A sealed lead-acid battery is provided containing a sulfuric acid electrolyte of a sufficient amount to perform charging and discharging of the battery which is impregnated and retained in fine particles of silica located and placed around an assembled element. In this way, an inexpensive sealed-lead acid battery which exhibits high discharging performance.

Abstract: Various constructions of battery are disclosed, each comprising one or more arrays of single cells or series arrangements of cells, arranged between bus plates and separated by separator members and spacers.

Abstract: Electrode plate for an electric storage battery including a lug for electrically coupling the plate to other plates in the battery and an insulating collar tightly engaging the root of each plate lug. In a stack of plates, the several collars abut one another so as to separate the lugs from each other and may serve to form a mold for shaping a plate strap cast thereon.

Abstract: In a galvanic primary cell, the anode mixture of a zinc-alkaline electrolyte gel is displaced by the introduction of a hollow body into the concentrically arranged anode space so that the zinc powder is fixed in a layer oriented toward the cathode of the cell, ensuring proper discharge, and so that the aqueous portion of the anode mixture can escape inside the displacement body through narrow openings in the body's wall. By attaching the displacement body to the negative electrode conductor, the current drainage can be improved by making at least part of the displacement body of a metallically conducting material.

Abstract: Electrode plate for an electric storage battery including a lug for electrically coupling the plate to other plates in the battery and an insulating collar tightly engaging the root of each plate lug. In a stack of plates, the several collars abut one another so as to separate the lugs from each other and may serve to form a mold for shaping a plate strap cast thereon.

Abstract: A sealed lead acid recombination electric storage cell comprises a container containing alternating positive and negative plates separated by separators. Each separator includes reinforcing means extending over substantially its entire area and constructed to define a plurality of apertures and being surrounded by microfine glass fibre material. The plates and separators are under a compressive force and the reinforcing members are so constructed and arranged that the major proportion of the compressive force is transmitted through the reinforcing members while the major proportion of the area of the plates is contacted by the glass fibre material.

Abstract: Improved polymer batteries and improved methods of manufacturing such polymer batteries are provided. One improved method of manufacture involves the formation of a laminated array structure that includes a number of individual battery cells. After formation of the laminated array the individual batteries are singulated from the array by cutting, shearing or stamping. Other manufacturing improvements include the use of a printing process (e.g. stenciling) to form the cathodes, the use of permanent mask layers to contain and insulate the cathodes and anodes, and the use of a molten lithium deposition process for forming the anodes.