Abstract: In a flat non-aqueous electrolyte secondary cell comprising an electricity-generating element including at least a cathode, a separator and an anode and a non-aqueous electrolyte in the inside of a cathode case, a plurality of electrode units each consisting of the cathode and the anode opposite to each another via the separator are laminated to form an electrode group, or an electrode unit in a sheet form consisting of the cathode and the anode opposite to each another via the separator is wound to form an electrode group, or a sheet-shape cathode is wrapped with the separator except for a part contacting at inner face of cathode case and a sheet-shaped anode is set on the sheet-shaped cathode in a right angled position each other and then these cathode and anode are bent alternately to form an electrode group, and the total sum of the areas of the opposing cathode and anode in this electrode group is larger than the area of the opening of an insulating gasket in a sealed portion in the cathode case or than

Abstract: This glass-metal penetration is made from glass, a metal pin and a body. The glass is of the TA23 type and the pin is made using solid platinum/iridium (90/10).

Abstract: An end cap seal assembly for an electrochemical cell such as an alkaline cell is disclosed. The end cap assembly comprises a metal support disk and underlying insulating sealing disk and a metal end cap overlying the metal support disk. The edge of the end cap and metal support disk is captured by the crimped edge of the insulating sealing disk. The support disk has a downwardly extending wall with at least one aperture therethrough. The insulating disk has a slanted downwardly extending wall forming a rupturable membrane which underlies and abuts the inside surface of the downwardly extending wall of the support disk. The rupturable membrane underlies and abuts the aperture in the downwardly extending wall of the end cap. When gas pressure within the cell exceeds a predetermined level the rupturable membrane pushes through said aperture and ruptures allowing gas to escape therefrom to the environment.

Abstract: A nonaqueous secondary electrolytic battery comprising an electricity-generating element formed by spirally winding a laminate of a positive electrode plate, a separating material and a negative electrode plate, and an electrolytic solution with which the separating material, if it is a separator, is impregnated. The electricity-generating element is sealed in a battery case formed by a resin-laminated sheet comprising a metal layer as a barrier layer. Only a pair of lead terminals are drawn to the exterior of the battery case. The resin sheet comprises an oriented resin layer laminated on both surfaces of the metal layer. The inner heat-fused layers are opposed and heat-fused to each other. A molten and solidified resin mass is formed protruding from the inner end of the welded portion toward the inner space of the battery by 0.1 mm or more. Alternatively, the welded portion is formed thinner at the outer end thereof than at the inner end thereof.

Abstract: An insulative feedthrough receives an electrical lead therethrough and includes a ferrule having fist and second open ends and an interior surface. At least one polymeric guide member is positioned substantially within the first end of the ferrule and has an aperture therethrough for receiving the lead. An insulating material is deposited in the ferrule through the second end for sealingly engaging the lead and the interior surface of the ferrule.

Abstract: An improved battery design which is particularly suitable for use in an implantable medical device is disclosed. The design utilizes a two-part case for the battery contents which allows freedom with respect to feedthrough locations and battery shape.

Abstract: A feedthrough is insulated and hermetically sealed by brazing a ceramic disk to a case cover and by brazing the top surface of the ceramic disk to the bottom surface of a feedthrough pinhead. Using this technique instead of forming a compression seal, the surface area for bonding is increased, increasing bond strength. The ceramic disk electrically insulates the feedthrough pin from the cover, and provides a large surface area for mechanically sealing the cell with the braze. Considering the small size of many cells, this increased surface area is important for getting a good seal and increasing bond strength. This design also creates a longer fluid path, providing greater hermeticity. Furthermore, a greater range of component material combinations is available because CTE compatibility limitations of the feedthrough pin, cover, and insulator are minimized. This feedthrough is applicable to broad array of applications and numerous material combinations.

Abstract: A laminate battery is provided with a tab, an electric power generating element connected to the tab, and a laminate sheet allowing the electric power generating element to be accommodated. The laminate sheet includes a metallic layer and a thermally welding resin layer laminated on the metallic layer. The tab and the thermally welding resin layer are welded by permitting a thermally welding area, which is formed in at least one of the thermally welding resin layer and the tab, and the other of the thermally welding resin layer and the tab to be welded to one another.

Abstract: An electrochemical cell, particularly an electrochemical cell having a container with a positive polarity. In one embodiment, the cell is a primary cell that includes an electrode assembly having a lithium negative electrode and a positive electrode, preferably comprising iron disulfide. The cell is provided with a spiral wound electrode assembly with a portion of the positive electrode contacting the container. The positive electrode current collector contacts the container in one embodiment. The negative electrode includes an electrically conductive member that electrically contacts a cover of the cell and provides the cover with a negative polarity. In a preferred embodiment, the electrically conductive member makes pressure contact with a portion of the cell cover. A method of manufacturing such a cell is also provided.

Abstract: A lithium-ion battery includes a first terminal in electrical communication with a first electrode of the battery, a second terminal in electrical communication with a second electrode of the battery, a cell casing that includes a lid electrically connected to the cell casing, and a positive thermal coefficient (PTC) layer in electrical communication with the first terminal and over the lid of the cell casing. A battery pack includes a plurality of such lithium-ion batteries as described above.

Abstract: A sealed battery with a film casing, comprising: a film casing covering a battery element; an electrode terminal pulled out by being conductive-connected to a positive electrode and a negative electrode of the battery element is taken out from a sealing part of the film casing; and a part of the electrode terminal between a portion positioned at the sealing part of the electrode terminal and a part of a portion of the electrode terminal extending outward beyond the sealing part being covered by an insulating resin layer, a region with low strength against bending being formed at the insulating resin layer positioned at a part extending outward beyond the sealing part or a part of the electrode terminal positioned at a lower layer of the insulating resin layer positioned at a part extending outward beyond the sealing part.

Abstract: A cap assembly including a cap plate having a port aperture, an electrode port inserted into the port aperture, and an insulating member formed between the cap plate and the electrode port to insulate the cap plate and the electrode port and to tightly bind the electrode port to the cap plate, wherein the insulating member, the cap plate, and the electrode port form a single integrated body.

Abstract: An alkaline storage battery has an electrode terminal that is inserted in a penetration hole, and disposed astride an inside of a battery case and an outside of the battery case, and fastened to a hole periphery portion via a packing. The negative terminal has a seal portion that, together with the hole periphery portion, clamps and compresses the packing to liquid-tightly seal the penetration hole. The seal portion includes an annular seal surface located facing the hole periphery portion, and a seal periphery surface located around the seal surface. The seal surface is protruded from the seal periphery surface toward the hole periphery portion. The surface roughness Ry of the seal surface of the negative terminal is 15 ?m or less.

Abstract: A headspace insulator for a battery cell operatively coupled to circuitry within an implantable medical device in including one or more of the following: (a) a body of electrically and thermally insulating material disposed between a battery electrode assembly and a battery cover, (b) a receiving area within the body that receives and isolates a battery feedthrough pin, (c) an indentation within the receiving area retaining the feedthrough pin within the receiving area, (d) a raised portion coupled to a battery cover providing an air gap between the cover and the headspace insulator near case-to-cover weld areas, (e) a feedthrough aperture adapted to receive a feedthrough assembly, (f) a pin aperture that receives the feedthrough pin, (g) a fillport aperture for electrolyte fluid flow through the headspace insulator, and (h) a slot that locates a battery weld bracket and isolates it from the feedthrough pin.

Abstract: A laminate cell comprises a power generating element formed by sequentially stacking positive electrode plates and negative electrode plates while interposing separators therebetween; a cell package formed of a metal composite film, the cell package hermetically sealing the power generating element and an electrolyte; a positive tab connected to the positive electrode plates; and a negative tab connected to the negative electrode plates. According to the laminate cell, the power generating element and the cell package have approximately rectangular plane shapes, and the positive tab and the negative tab are drawn outward from end edges of long sides of the cell package.

Abstract: A secondary battery in which the structure of an insulating case arranged between an electrode assembly and a cap assembly prevents electrode tabs from being bent. The secondary battery includes: an electrode assembly including a positive electrode, a negative electrode, a separator interposed between the positive electrode and the negative electrode, and electrode tabs respectively extending from the positive electrode and the negative electrode; a can for accommodating the electrode assembly; a cap assembly attached to an opening of the can and connected to the electrode tabs; and an insulating case arranged between the electrode assembly and the cap assembly and including a hole through which one of the electrode tabs pass, the insulating case including barrier ribs respectively extending from at least portions of side walls of the hole.

Abstract: A battery pack 13 (FIG. 2) comprises an elongated cylindrical, metal casing 35, a plurality of cells 41, 43 in casing 35 and three coaxial pack terminals 46, 54, 61. For enhanced convenience, pack terminals 46, 54, 61 are electrically connectable in a cordless device 11 regardless of the angular orientation of the pack 13 about casing axis 33. To reduce cost and increase durability, pack 13 has no welded connections and will permit high current discharge rates. Cells 41, 43 are electrically connected but are mechanically disconnected. A spring 73 engages cell 41 and biases cells 41, 43 tightly together in compression to form good, low resistance electrical contact between cells 41, 43, casing base cap 45 and top 53. To provide a pack with two output voltages, the third pack terminal 61 has a polarity (relative to first pack terminal 46) the same as second pack terminal 54 and is electrically connected to the cell can terminal 43b of forward cell 43, thereby electrically by-passing cell 43.

Abstract: A lithium ion secondary battery in which at least one step portion is formed on an upper surface of a cap plate, and at least one step portion is formed on a lower or first surface of a battery part opposite to the upper or first surface of the cap plate so that the at least two step portions are complementary. The complementary step portions of the cap plate of the bare cell and the battery part provided at an upper part of the cap plate result in easy coupling of the battery part to the bare cell and stable maintenance of the coupling between the battery part and the bare cell. The coupling structure results in greater ease in performing subsequent manufacturing processes and protects the bare cells coupled to the battery part from dislodging.

Abstract: A secondary battery includes a bare cell having an electrode assembly. The electrode assembly has cathode plates, anode plates and separators insulating the cathode plates from the anode plates. The secondary battery also includes a can housing the electrode assembly, the can having an opening for receiving the electrode assembly and a cap assembly having a cap plate sealing an opening of the can, the cap plate having a terminal through-hole, an electrode terminal inserted into the terminal through-hole, and a gasket insulating the electrode terminal from the terminal through-hole. A protective circuit board is coupled to the bare cell and a molding resin molds the protective circuit board with the bare cell. The gasket includes a coupling extension constraining the molding resin at the cap plate.

Abstract: The invention provides a closed type battery comprising a battery element covered with a covering film and a heat fusion seal portion formed by heat fusion on a periphery of the covering film, wherein the cleaving strength upon an internal pressure rise of a seal portion positioned between a positive electrode terminal and a negative electrode terminal is larger than that of any other seal portion, and a safety valve adapted to release pressure upon a battery's internal pressure rise is located at a portion other than said inter-terminal seal portion. The invention also provides an assembled battery wherein a plurality of closed type batteries are stacked one upon another while a safety valve adapted to release pressure upon an increase in the internal pressure of the battery is located at a position in no contact with the covering film surface of an adjoining battery.

Abstract: A sealed battery according to the present invention includes a sealing body 18A having a terminal cap 19? made of an iron-based material and a safety valve 25 made of an aluminum-based material. In the sealing body 18A, at least one of the flange of the terminal cap 19? and the flange of the safety valve 25 has a portion defining a space 30. The flanges of the terminal cap and of the safety valve are welded at a position corresponding to the space with high-energy rays. It is thus possible to provide the sealed battery including the sealing body having a current interrupt function in which resistance between the terminal cap and the safety valve is kept low, thereby being suitable for large-current applications.

Abstract: A secondary battery including a cap assembly with a structure improved for tight sealing and a plug therefor are provided. The secondary battery includes a battery unit formed by rolling a stack of a negative plate, a separator, and a positive plate, a cap assembly, and an electrode tab drawn out from one of the negative plate and the positive plate and electrically connected to an electrode port from the cap assembly. The cap assembly includes: a cap plate having a port aperture and an electrolyte injection hole; the electrode port connected via the port aperture to the electrode tab; a gasket installed to surround the electrode port so as to insulate the electrode port from the cap plate; and a plug which is plugged into the electrolyte injection hole by pressing and whose upper rim matches an upper edge of the electrolyte injection hole.

Abstract: A module battery comprises cells each having an electric power generating element hermetically sealed in a package film, and cell holders on each of which each of the cells is mounted and held. The cell holders are formed in configurations so as to allow the cell holders to be freely stacked in a plurality of stages while permitting the cells to be retained thereon and to allow electrode tabs of the cells to be exposed between the cell holders neighboring in a stacking direction. Thus, the module battery can be formed in an easy assembly work.

Abstract: In a cylindrical lithium ion secondary battery, the width of an electrode tab positioned at a center of an electrode assembly is extended so that it serves as a center pin and functions to release heat. Thus, it is not necessary to separately insert a center pin, thereby reducing the manufacturing cost and steps. The cylindrical lithium ion secondary battery comprises an electrode assembly, a case for receiving the electrode assembly, and a cap assembly for sealing the top opening of the case. The electrode assembly comprises a positive electrode plate and negative electrode plate. The positive electrode plate has a positive electrode tab, a positive active material region, a positive uncoated region, and a positive current collector exposed through the positive uncoated region.

Abstract: A polymer battery pack includes a polymer battery, an outer case having a first outer panel and a second outer panel, the outer case enclosing the polymer battery, an electrode tap in electrical communication with the polymer battery and positioned outside the outer case, and a protecting circuit board in electrical communication with the electrode tap and positioned outside the outer case, for enhanced operation and durability.

Abstract: A secondary battery including an electrode assembly in which anode and cathode electrodes are laminated with a separator interposed therebetween and are wound together, a can to receive the electrode assembly, and a cap assembly attached to an opening of the top of the can, the cap assembly having an electrode terminal that is electrically connected with one of the electrodes of the electrode assembly and including two protrusion parts formed thereon.

Abstract: An energy storage device, such as an electrical storage battery, having a unique terminal structure, sealing arrangement and an S-shaped mandrel for the electrode assembly. The battery generally includes a case in which an electrode assembly is dispose, and a cover provided with a fill hole and fill plug, and a terminal structure that forms a battery terminal. The terminal hole and the fill hole have counter bore structure to provide tighter sealing. A nickel layer is provided on the aluminum fill plug to facilitate electrical contact with the external circuit. A mandrel is provided for the rolled electrode assembly, and is electrically coupled to the terminal structure via a push-in tab inserted into a space in the S-shape of the mandrel.

Abstract: A pouch-type lithium secondary battery includes a battery unit having a positive plate, a separator, and a negative plate; a plurality of electrode tabs, drawn from the positive and negative plates, respectively; a case, formed with a space receiving the battery unit and with upper and lower sealing surfaces thermally fused to each other; and an insulating tape wrapping the electrode tabs, wherein a portion of the insulating tape interposed between the upper and lower sealing surfaces is thermally fused to the upper and lower sealing surfaces, and an end portion of the insulating tape is exposed outside the case together with the electrode tabs and positioned outside the upper or lower sealing surface after being folded. A portion of the insulating tape exposed outside the sealing surface of the case is extended and the extended portion of the insulating tape comes in contact with the end portion of the sealing surface after being folded.

Abstract: The invention includes a brazed ceramic ring that separates the positive and negative ends of the battery while still providing a leak-tight seal. The ceramic is aluminum oxide or zirconium oxide or zirconium oxide with 3% yttrium. The invention includes a brazing material, which is grater than 50% gold. The invention includes a titanium alloy case (Ti-6Al-4V) which is titanium with 6% aluminum and 4% vanadium as its major alloying elements. The case has the desirable properties of titanium such as high strength for a relatively low weight; and the case has the requisite ability and electro-activity to be used as a positive current carrying element where the battery's positive electrode exhibits more then 3.5 V vs. Li/Li+.

Abstract: A manganese dry battery with excellent leak-proof property is provided, in which electrolyte leakage does not occur even if the size of a positive electrode material mixture is increased to meet a demand for improvement in discharge property. In a sealing part, a first circular projection, a second circular projection and a third circular projection are arranged at the bottom in sequence from the center to the outside, and a positive electrode carbon rod supporting part is provided in an innermost periphery portion to have an interval from the first circular projection. A groove between the first projection and the carbon rod is formed to have a substantially rectangular vertical section, kraft board is pressed by flat bottom surfaces of the first and second projections and an opening of the zinc can is fitted between the second and third projections.

Abstract: A method and apparatus for cold forming a battery terminal having a base and an insert. The insert includes a first portion encapsulated within the base and a second portion that extends beyond a first side of the base.

Abstract: In order to enable the safer use of an assembly of multiple cells comprising: a plurality of unit cells; an outer container for housing the unit cells; a terminal plate for sealing an upper opening of the outer container; and a positive output terminal and a negative output terminal formed on the same face of the terminal plate, at least the side face of the negative output terminal is covered by a protective tube having an electrical insulation property.

Abstract: The present invention pertains to lightweight, hard and leakproof prismatic packaging structures for electrochemical devices and economical method of assembly and hermetic sealing of said structures by plastic layers attached to their metal walls. Metal welding is avoided and superior protection of lithium polymer cells and other cells is thus provided at lesser cost.

Abstract: A secondary battery includes an electrode assembly; a laminated container laminated with flexible films, which encloses the electrode assembly while the electrode tabs are drawn out of the laminated container and is sealed by fusing resulting structure within a sealed portion; and a safety unit in the sealed portion, capable of being melted by excess heat generated from the secondary battery.

Abstract: A pouch type secondary battery has a safety vent which prevents explosion and fire by removing a sealing mechanism of a pouch casing when the internal temperature increases due to overcharging, overdischarging or over-heating, and which exhausts internal gas before explosion and fire of the battery when the internal gas pressure excessively increases due to overcharging, overdischarging or internal short-circuit.

Abstract: A cell includes an electrode plate group which is formed by laminating a positive electrode plate and a negative electrode plate with a separator interposed between them, and includes leads protruding toward directions opposite to each other from one side of the positive electrode plate and the negative electrode plate, collectors which are joined to the leads on both sides of the electrode plate group, and include connection protrusions formed so as to protrude outside, and a bag-shape battery case containing the electrode plate group joined to the collectors such that only the connection protrusions of the collectors are protruded outside. A battery module is constituted by placing a plurality of the cells in a prismatic battery case while the connection protrusions of the collectors of the cells are connected with each other, thereby making the current-carrying path between the electrode plate groups straight and short and increasing the output.

Abstract: An apparatus for sealing a wide variety of vessels and for providing access to the interior of such vessels while sealed. In some embodiments, a sealing apparatus includes a base plate, a cover plate, and a seal that is disposed therebetween. In use on a vessel, when the seal is disposed in a rest position, it covers a vessel-access hole that penetrates the base plate and communicates with the underlying vessel. To temporarily displace the seal, a tube, such as a syringe needle, etc., is inserted through a guide hole in the cover plate. The tube contacts the seal, which forces the seal to move at least partially out of its sealing position. With continued downward movement, the tube enters the underlying vessel so that it can withdraw or add fluid to it. When the tube is withdrawn, the seal returns to its sealing position.

Abstract: An electrical battery for multi-cellular interconnection in series, parallel or series and parallel has a protrusion and a recess, such as a tongue and a groove, extending on outer surfaces of the sidewalls of the battery case such that when a protrusion of one battery is slid into a recess of another, the two batteries are electrically connected by the portions of the protrusion and the recess that are made of electrically conductive materials connected to the voltage producing elements inside the case. The battery further includes hollow plug-in posts and plug-in pins at the top and the bottom of the case that are connected to the voltage producing elements of the battery so that when the plug-in pins of one battery are inserted into the plug-in posts of another, the two batteries are in electrical interconnection. The battery also includes an electrolyte recirculation, gas purging, and automatic watering systems.

Abstract: A battery unit for a secondary battery that includes a positive electrode plate, a positive electrode tab, a negative electrode plate, a negative electrode tab, a separator, and short circuit preventing units, wherein the short circuit preventing units are formed on corresponding uncoated areas of the positive and negative electrode current collectors where the positive and negative electrode sheets are not formed, each short circuit preventing unit having a corresponding width greater than a width of the corresponding positive and negative electrode current collectors.

Abstract: The invention provides a closed type battery comprising an electrode-leading terminal formed by caulking that ensures satisfactory sealing sealability. That terminal comprising a metal plate for sealing up an opening in a battery can, an insulating member that cover a through-hole provided through the metal plate and both surfaces of the metal plate around the through-hole, an electrode-drawing sheet positioned on a surface of the insulating member located on an outer surface of a battery and an electrode-leading pin that is inserted into the through-hole in the electrode-drawing sheet and caulked from above and below. At the surface of contact of a flange of the electrode-leading pin with the insulating member there is provided at least a projection.

Abstract: A prismatic sealed battery module includes: a prismatic battery case; an electrode plate group constituted by alternately layering positive and negative electrode plates with a separator arranged therebetween; and an electrolyte. The positive or negative electrode plates protruding from each end face of the electrode plate group are bonded to a collector member. A metal connector is fixed to the central part of the collector member facing the inner surface of the side end wall of the battery case. The collector member is connected, at the metal connector, to an external terminal using an externally connecting bolt.

Abstract: A unitary lid for the casing of an electrochemical energy storage device is described. The lid has a terminal lead ferrule and a fillport formed from a single blank in a machining process. The lid does not require any welding except for securing it to the open end of a casing container. This helps the lid contribute to the cell's volumetric efficiency, which is especially important for cells powering implantable medical device.

Abstract: The present invention provides a thin battery, comprising a metal case, a battery core formed by laminating and wrapping an anode, a septum and a cathode, an anode conductive terminal and a cathode conductive terminal, characterized in that: said metal case is made of a quadratic shallow trough having five thin-walls and a top cover welded on the trough; the shallow trough has outlets for the electrodes.

Abstract: A film-sealed nonaqueous electrolyte battery comprises: a battery element including a non-aqueous electrolyte; a film case having at least a sealant polymer resin film for sealing the battery element; at least a lead terminal extending from the battery element and projecting from the film case, and the lead terminal with a surface having a contact area in contact directly with the sealant polymer resin film, and at least the contact area of the surface of the lead terminal is coated with an anti-corrosion coating film, wherein the anti-corrosion coating film includes: (A) a polymer of structural units of a phenolic compound, and at least a part of the structural units includes a substituent which comprises an amino group or a substituted amino group; (B) a phosphate compound; and (C) a titanium fluorine compound.

Abstract: A secondary battery includes: a battery unit in which a cathode plate, a separator, and an anode plate are sequentially disposed upon one another and wound together; a can provided as a housing for the battery unit, and into which an electrolyte is injected; a cap assembly bound to an upper portion of the can; and a thermal protector installed in the can for electrically connecting an electrode lead drawn from the battery unit to an electrode terminal via the cap assembly, and for cutting off current flow when the battery unit is overcharged. When the inner temperature of the battery rises due to overcharging, the thermal protector installed in the can accurately detects the increase in temperature, and cuts off current flow, thereby preventing thermal runaway and improving reliability of the secondary battery.

Abstract: A body implantable medical device (IMD) includes a first shell and a second shell whose outer surfaces are biocompatible. The IMD further includes a battery enclosure defined by all or a portion of the first shell of the IMD housing and a cover. The cover of the battery enclosure is disposed between the inner surfaces of the first and second shells, has a greater rigidity than the first shell, and includes an improved feedthrough assembly for an electrochemical cell, such as a flat liquid electrolyte battery, provided in the battery enclosure. Electronic circuitry, supported on a flexible wiring substrate, is provided between the inner surface of the second shell and the cover of the battery enclosure. A hermetic seal is provided between the cover of the battery enclosure and all or a portion of the first shell.

Abstract: A rechargeable battery is integrated with a battery protection circuit that protects the rechargeable battery from overcharging, over discharging, and so forth. A circuit board (9) on which are formed a battery protection circuit, a positive input and output terminal (4), and a temperature detection terminal (6) is disposed on a rechargeable battery (10) via a spacer (13), and the positive and negative electrodes of the rechargeable battery (10) are connected to the circuit board (9). This assembly is enveloped by a cover cap (15) and a cover plate (14), such that the positive input and output terminal (4) and the temperature detection terminal (6) are exposed to the outside through openings provided in the cover plate (14), and one end of the cover cap (15) in the same plane as these is used for connection as a negative input and output terminal (5).

Abstract: A sealed prismatic battery includes an electrode plate group having positive and negative electrode plates stacked upon one another with a separator interposed therebetween, collectors each connected to a lead portion on either side of the electrode plate group and having one or more connection bosses formed in a middle part thereof, and a battery case, generally rectangular in shape, for accommodating the electrode plate group connected with the collectors. The battery case has a through-hole for the connection boss of the collector to penetrate therethrough via a rubber seal. A battery module includes a plurality of the sealed prismatic batteries, the connection bosses of which are connected to each other.

Abstract: A battery having an electrode assembly located in a housing that efficiently utilizes the space available in many implantable medical devices is disclosed. The battery housing provides a cover and a shallow case a planar bottom, an open top to receive the cover, and a plurality of sides being radiused at intersections with each other and with the bottom to allow for the close abutting of other components located within the implantable device while also providing for efficient location of the battery within an arcuate edge of the device.

Abstract: Mechanically and thermally improved rechargeable batteries, modules and fluid-cooled battery pack systems. The battery is prismatic in shape with an optimized thickness to width to height aspect ratio which provides the battery with balanced optimal properties when compared with prismatic batteries lacking this optimized aspect ratio. The optimized thickness, width and height allow for maximum capacity and power output, while eliminating deleterious side affects. The battery case design allows for unidirectional expansion which is readily compensated for by applying external mechanical compression counter to that direction. In the module, the batteries are bound within a module bundling/compression means under external mechanical compression which is optimized to balance outward pressure due to expansion and provide additional inward compression to reduce the distance between the positive and negative electrodes, thereby increasing overall battery power.