Abstract: A hybrid electrochemical cell system is provided. In one embodiment, the hybrid system includes a cathode, an electrolyte, and a plurality of anode portions. A first anode portion is in ionic communication with the cathode via the electrolyte, and a second anode portion in ionic communication with the cathode via the electrolyte. The first anode portion, the electrolyte, and the cathode form a power generating electrochemical cell. Further, the second anode portion, the electrolyte, and the cathode form an auxiliary electrochemical cell. In another embodiment, separate cathode portions are provided.

Abstract: A current-collecting structure in a fuel cell system includes conductive separators, current-collecting plates pressed toward the conductive separators, a plurality of good conductors dispersed between the conductive separators and the current-collecting plates and adapted to be deformed under the pressing to come into close contact with the conductive separators and the current-collecting plates, and a conductive binder. The conductive binder fills vacant spaces among the good conductors, the conductive separators and the current-collecting plates. The current-collecting structure in a fuel cell system provides a decreased contact resistance between the conductive separator and the current-collecting plate.

Abstract: An electrochemical battery cell comprising a metal container with an open end closed with a metal cover. The top portion of the container side wall has a torus above an inward necked area, and the cover has a flange shaped around the outside of the torus and extending into the necked area. The inside diameter of the cover flange is smaller than the outside diameter of the torus, so that the cover is locked onto the top of the can. The components sealing the top of the cell require a small volume so that the internal volume for active materials and electrolyte is large. The cell can be closed and sealed with little downward force on the can side wall below the neck, allowing use of a thinner can.

Abstract: A high power bipolar battery, such as a high power lithium polymer battery is provided. The bipolar battery includes a plurality of multiple cell assemblies. The plurality of multiple cell assemblies is connected in series to form the high power bipolar battery. Each of the plurality of multiple cell assemblies includes a rigid core with a bipolar cell stack of multiple cells wound together around the rigid core to produce a large active cell area. The wound bipolar cell stack includes a positive battery connection and a negative battery connection. A container surrounds the bipolar cell stack. A positive terminal carried by the container is connected to the positive battery connection. A negative terminal carried by the container is spaced apart from the positive terminal and connected to the negative battery connection. A state-of-charge connector carried by the container is spaced apart from the positive and negative terminals.

Abstract: A multi-cell Li-ion or Li-ion polymer battery, comprised of a plurality of generally planar cell sections, each having at least one flat, metallic current collector tab extending therefrom. A plurality of the current collector tabs are aligned in spaced-apart relationship and extend from one side of the cell body. Each of the tabs has a free end and an intermediate portion. A tab weldment joins the free ends of the tabs but leaves the intermediate portions of the tabs unattached to each other. The tabs are welded together when the tabs are stacked together at a location offset from the cell body, such that the tabs are folded into a generally U-shaped configuration with the unattached intermediate portions forming a smooth layered, generally U-shaped structure when the tab weldment is disposed adjacent the one side of the cell body.

Abstract: An improved battery cell having electrodes formed of active material adhered to a conductive substrate with active surface areas communicating along an entire edge portion with conductors thereby minimizing resistance and allowing for communication of electrical current to and from the battery at a high rate with an even discharge from the electrodes. The plurality of electrodes is then stacked or wound to a desired configuration with a porous separator separating each adjacent electrode from the other. Communication along the entire edge of the formed electrodes on the conductive substrate with a conductive edge portion of the substrate, provide for maximum current flow in and out of the battery as well as well as reducing thermal concerns in high current applications. Elongated electrical conductors best made from copper are attached to substantially the entire length of the positive and negative edge portions.

Abstract: An improved electrical interconnect member for rechargeable battery packs is provided. The interconnect member includes a metal tab and a plastic housing. The metal tab preferably includes side bends projecting below the tab in a non-perpendicular geometric orientation with the top of the tab. The tab includes at least one lance for preventing post-assembly, lateral movement between the tab and housing. The housing is preferably Y-shaped, with the outer surfaces of the Y having concave curvatures. The concave curvatures allow the housing to seat between adjoining, cylindrical cells. The housing includes a rail with a cross section that corresponds to the area between the side bends and the top of the tab. The housing also includes a post for coupling to the lances.

Abstract: A stacked lithium-ion rechargeable battery comprises a plurality of stacked positive and negative electrode couples forming a battery core, each of said couple having a negative electrode, a positive electrode, a separator, and non-aqueous electrolyte, all encased in a battery case. The core is secured by a clamp case and said clamp case is encased in a battery shell. There are thin neck parts (or conducting tabs) extending from the base plates of the positive and negative electrodes to form the current collectors of the positive and negative electrodes. The positive electrodes and negative electrodes are arranged such that the two current collectors are located on the two opposite ends of the core. The current collector at each end of the core is clamped by a clip and connecting to the respective positive and negative terminals. This stacked lithium-ion rechargeable battery has a relatively low impedance, high discharge rate and high safety performance.

Abstract: A secondary battery including an electrode group, an electrolyte, a battery case for accommodating therein the electrode group and the electrolyte, and a current collector plate positioned at the bottom of the battery case, wherein the electrode group is formed by winding a positive electrode and a negative electrode with the interposition of a separator, the positive electrode includes a belt-shaped positive electrode core and a positive electrode material mixture carried on the positive electrode core, the negative electrode includes a belt-shaped negative electrode core and a negative electrode material mixture carried on the negative electrode core, at least one of the positive electrode and the negative electrode has an end portion parallel to the lengthwise direction thereof exposing the core, the end portion positioned at an end face of the electrode group is directly connected to the current collector plate, and at least part of the current collector plate is exposed outside at the bottom of the batte

Abstract: A sealed battery includes a metal case which functions as a connection terminal of one polarity and an electrode post which is mounted to the case in an insulated manner and functions as a connection terminal of the other polarity. A sealing section with electrical insulation properties is disposed between the electrode post formed from a hollow cylinder with one closed end and an electrode post through-hole provided in the case. A compression deformation section is produced by deforming the closed end of the electrode post radially outward, for compressing and sealing the sealing section, and for securing the electrode post to the case.

Abstract: Improved metal-air fuel cell battery systems having metal-fuel realized in the form of metal-fuel tape cartridges and metal-fuel cards, which can be either manually or automatically inserted within the power generation bay of the system. In order to produce a range of output voltages, the metal-fuel tape has a plurality of electrically-isolated metal-fuel tracks and the metal-fuel cards have a plurality of electrically-isolated metal-fuel strips. An output voltage configuration subsystem is provided for configuring the voltages produced by the individual cells to produce a desired output. A subsystem is provided for detecting oxide formation on the metal-fuel tracks and strips so that only metal-fuel that has been oxidized is reduced during recharging operations. A subsystem is also provided for controlling the flow of oxygen into the power generation head in order to control the power output from the system.

Abstract: A nonaqueous electrolyte secondary cell comprises a rolled-up electrode unit 2 composed of a positive electrode 23, a negative electrode 21 and a separator 22 interposed therebetween, and a negative electrode current collector plate 3 and a positive electrode current collector plate 30 joined to the respective ends of the electrode unit 2. The negative electrode collector plate 3 is joined to an edge of the negative electrode 21 projecting at one of the opposite ends of the electrode unit 2. The collector plate 3 has a two-layer structure comprising a copper layer 31 made of copper or an alloy consisting predominantly of copper, and a metal layer made of a metal not forming an intermetallic compound with lithium and having a lower laser beam reflectivity than copper or an alloy consisting predominantly of the metal. The collector plate 3 has its copper layer 31 contacted with the edge of the negative electrode 21 and welded thereto with a laser beam.

Abstract: A rechargeable battery comprises a can having an open portion in an upper region and accommodates a power generating unit. A flexible plate is installed in the opening portion, the flexible plate being connected to an electrode of the power generating unit and flexing when the internal pressure of the rechargeable battery rises above an allowable range. A terminal cap is arranged on the flexible plate, electrically connected to the flexible plate, and has an insulating portion on a bottom surface. An insulating substrate is arranged between the flexible plate and the terminal cap and has a rupture portion that is broken when the flexible plate flexes beyond an allowable range. Upon breaking the broken ends of the insulating substrate directly contact the insulating portion of the terminal cap so that the insulating substrate is electrically disconnected from the terminal cap.

Abstract: In a rechargeable battery in which an electrode plate group (10) obtained by superimposing a positive electrode plate (1), in which positive electrode material (1a) is attached to a positive electrode current collector (1b), and a negative electrode plate (2), in which negative electrode material (2a) is attached to a negative electrode current collector (2b), with a separator (3) therebetween is accommodated in a battery container (4) together with electrolyte, the current collectors (1b, 2b) of the electrode plates (1, 2) are respectively projected at opposite ends of the electrode plate group (10), forming by themselves flat planes (11, 12) by being pressed, and current collecting plates (8, 9) are joined to these flat planes (11, 12).

Abstract: A secondary cell comprises an electrode unit housed in a cell can comprising a cylinder having a bottom and a closed opening, and a current collector plate 50 is provided at one end of the electrode unit. The current collector plate 50 has a plurality of protrusions 52 extending radially thereof and joined to an edge of the electrode unit. The surface of the current collector plate 50 to be joined to the bottom wall of the cylinder has a flat region R extending on a predetermined closed-loop track on the surface, and the portions of the current collector plate 50 and the cylinder to be joined are subjected along the flat region R to laser welding from outside the cylinder.

Abstract: In each of the cells that constitute an battery module, a plurality of positive electrode plates and negative electrode plates are layered parallel to the long lateral walls of prismatic cell cases with intervening separators therebetween, wherein lateral edge portions of the positive electrode plates protrude beyond the negative electrode plates on one side, and lateral edge portions of the negative electrode plates protrude beyond the group of positive electrode plates on the opposite side, the protruding portions forming lead portions.

Abstract: A group of electrodes are accommodated in a prismatic cell case of a rechargeable battery. Intervening separators are provided between positive and negative electrode plates arranged alternately in parallel to long lateral walls of the cell case. The positive electrode plates each include a lead portion having a surface on which at least one lead plate is attached. Lateral edges of the positive electrode plates protrude beyond the negative electrode plates on one side, and lateral edges of the negative electrode plates protrude beyond the group of positive electrode plates on the opposite side. The protruding portions form the lead portions. Upper open ends of the cell cases are closed by an integral lid member.

Abstract: In a rechargeable battery in which an electrode plate group obtained by superimposing a positive electrode plate, in which positive electrode material is attached to a positive electrode current collector, and a negative electrode plate, in which negative electrode material is attached to a negative electrode current collector, with a separator therebetween is accommodated in a battery container together with electrolyte, the current collectors of the electrode plates are respectively projected at opposite ends of the electrode plate group, forming by themselves flat planes by being pressed, and current collecting plates are joined to these flat planes.

Abstract: An electric storage battery and method of manufacture thereof characterized by a feed through pin (12) which is internally directly physically and electrically connected to an inner end of a positive electrode substrate (32). A C-shaped mandrel (48) extends around the pin and substrate end enabling the pin/mandrel to be used during the manufacturing process as an arbor to facilitate winding layers of a spiral jellyroll electrode assembly. The pin additionally extends from the battery case (101) and in the final product constitutes one of the battery terminals (14) with the battery case comprising the other terminal. The electrolyte is injected through the open end of the case after the end cap is welded to the negative electrode but before sealing the end cap to the case. The electrolyte is preferably injected through the C-shaped mandrel to facilitate and speed filling.

Abstract: A prismatic battery wherein a wound electrode (2) is housed in a battery can (1) including a sealing plate (12) fixed onto an opening of a prismatic case (11) with the outer surface of the electrode (2) aligned with the bottom of the prismatic case (11). Current collector plates (3), (30) are placed at both ends of the wound electrode (2) where edges (21), (22) of a pair of positive and negative electrodes project. The current collector plates (3), (30) are connected to a pair of positive and negative electrode terminals (4), (40). The current collector plates (3), (30) and the electrode terminals (4), (40) are connected by flexible flexible lead members (5), (50).

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: A rechargeable battery includes a cover and at least one connecting pole comprising a pole shank inserted into a pole sleeve having an inner casing. The connecting pole is closed from the outside of the rechargeable battery such that it is liquid-tight and gas-tight. The pole sleeve is electrically conductively connected to the pole shank and is held in a liquid-tight and gas-tight manner by the cover. A first section of the pole shank is electrically conductively connected in a gas-tight and liquid-tight manner to the inner casing of the pole sleeve. A sliding element is provided between a second section of the pole shank and the inner casing of the pole sleeve.

Abstract: An electrode assembly and construction method therefor for use in small high performance batteries suitable for implantable medical device applications. The electrode assembly comprises a stack of precisely aligned planar elements including alternately arranged positive and negative planar electrodes having a planar separator interposed between adjacent electrodes. Each electrode is preferably formed of a thin metal substrate carrying active material on front and rear faces. The peripheral edge of each electrode defines an active area and a tab extending therefrom. The front and rear faces of the active area each carries a layer of active material. The faces of the tab area are preferably bare. The positive electrode tabs are located at a first position along the peripheral edge whereas the negative tabs are located at a second position spaced from said first position. Each tab carries a clip to form a reinforcing strip adjacent each tab face. Alignment holes are formed in the clips and tabs.

Abstract: An electrochemical battery cell comprising a metal container with an open end closed with a metal cover. The top portion of the container side wall has a torus above an inward necked area, and the cover has a flange shaped around the outside of the torus and extending into the necked area. The inside diameter of the cover flange is smaller than the outside diameter of the torus, so that the cover is locked onto the top of the can. The components sealing the top of the cell require a small volume so that the internal volume for active materials and electrolyte is large. The cell can be closed and sealed with little downward force on the can side wall below the neck, allowing use of a thinner can.

Abstract: A battery set and a method for producing electric power output are disclosed as including a plurality of groups (A, B) of series-connected battery cells, wherein each group produces a voltage of x [V] in a normal state and a voltage of y [V] in an overcharged state and wherein each group includes more than y/(y−x) pieces and less than 400/x pieces of battery cells (12a, 12b, 12c, 12n; 14a, 14b, 14c, 14d, 14n) which are connected in series, and the plurality of groups of the series-connected battery cells are connected in parallel. Preferably, the battery set includes plural groups of more than four pieces of LiMn2O4 type lithium ion battery cells which are connected in series, with the plural groups being connected in parallel.

Abstract: An electrode group fabricated by spirally winding a positive plate and a negative plate with a separator interposed between them is housed in a metal case. An upper opening of the metal case is hermetically sealed with a gasket. One side edge along the longitudinal direction of the negative plate projects out downward of the electrode plate and is joined to the bottom of the metal case while the side edge along the longitudinal direction of the positive plate projects out upward of the electrode group and is joined to the lower surface of a sealing plate. A metal current collector having a cap-shaped terminal for joining the positive electrode side and the lower surface of the sealing plate and for collecting current is welded to the protrusion of the positive plate, and the metal current collector having a cap-shaped terminal is provided with a gas venting mechanism.

Abstract: A plurality of positive electrode plates and negative electrode plates are stacked alternately upon one another with intervening separators therebetween, wherein lateral edges of the positive electrode plates protrude beyond the negative electrode plates on one side, and lateral edges of the negative electrode plates protrude beyond the group of positive electrode plates on the opposite side. Collector plates are brought in tight contact with respective lateral edges of the positive and negative electrode plates, and heat is applied to the collector plate on an opposite surface of the electrode plates from a non-contact type heat source at several locations in lines along a direction in which the electrode plates are stacked.

Abstract: An alkaline cell having a flat housing, preferably of cuboid shape. The cell can have an anode comprising zinc and a cathode comprising MnO2. The housing can have a relatively small overall thickness, typically between about 5 and 10 mm. Cell contents can be supplied through an open end in the housing and an end cap assembly inserted therein to seal the cell. The end cap assembly includes a vent mechanism which can activate, when gas pressure within the cell reaches a threshold level typically between about 100 and 300 psig (6.89×105 and 20.69×105 pascal gage). The cell can have primary and supplemental vent mechanisms such as welded or thinned regions on the surface of the housing which may activate at different pressure levels. The cathode can be formed of a plurality of stacked slabs having aligned hollow centers with an elongated opening for anode material to be inserted therein.

Abstract: A cell comprising: a lead; a power generating element which comprises a positive electrode, a negative electrode, and a separator; and a core, wherein said lead for taking current from said power generating element is fixed on said core, and said lead is connected to said positive electrode or said negative electrode.

Abstract: A nonaqueous electrolyte secondary cell comprises a rolled-up electrode unit 2 composed of a positive electrode 23, a negative electrode 21 and a separator 22 interposed therebetween, and a negative electrode current collector plate 3 and a positive electrode current collector plate 30 joined to the respective ends of the electrode unit 2. The negative electrode collector plate 3 is joined to an edge of the negative electrode 21 projecting at one of the opposite ends of the electrode unit 2. The collector plate 3 has a two-layer structure comprising a copper layer 31 made of copper or an alloy consisting predominantly of copper, and a metal layer made of a metal not forming an intermetallic compound with lithium and having a lower laser beam reflectivity than copper or an alloy consisting predominantly of the metal. The collector plate 3 has its copper layer 31 contacted with the edge of the negative electrode 21 and welded thereto with a laser beam.

Abstract: A nonaqueous electrolyte secondary cell comprises a rolled-up electrode unit 2 composed of a positive electrode 23, a negative electrode 21 and a separator 22 interposed therebetween, and a negative electrode current collector plate 3 and a positive electrode current collector plate 30 joined to the respective ends of the electrode unit 2. The negative electrode collector plate 3 is joined to an edge of the negative electrode 21 projecting at one of the opposite ends of the electrode unit 2. The collector plate 3 has a two-layer structure comprising a copper layer 31 made of copper or an alloy consisting predominantly of copper, and a metal layer made of a metal not forming an intermetallic compound with lithium and having a lower laser beam reflectivity than copper or an alloy consisting predominantly of the metal. The collector plate 3 has its copper layer 31 contacted with the edge of the negative electrode 21 and welded thereto with a laser beam.

Abstract: An electrode assembly for a lithium ion cell and a lithium ion cell using the electrode assembly are provided. The electrode assembly for a lithium ion cell includes a positive electrode plate, a separator and a negative electrode plate, which are sequentially stacked and wound. A positive electrode lead is electrically coupled to the positive electrode plate and is led from the positive electrode plate. A negative electrode lead is electrically coupled to the negative electrode plate and has a current interrupter which is capable of causing a disconnection in the event of an over-current.

Abstract: A lithium secondary battery includes a can made of a conductive metal. The can houses an electrode unit having positive and negative electrode plates with a separator interposed therebetween with an electrolytic solution. An upper opening of the can is sealed by a cap assembly. A bottom plate is welded to an outer bottom surface of the can, and a lead plate having a first end welded to the outer bottom surface of the can and a second end connected to a safety device so that the can is electrically connected to the safety device.

Abstract: The present invention provides microelectronic electrochemical structures and related fabrication methods. A composite microelectronic structure is provided that includes first and second conductors dielectrically isolated from one another at a crossing thereof, the crossing surrounded by a dielectric material. A portion of the dielectric material around the crossing of the first and second conductors is removed to form a well that exposes respective outer surfaces of the first and second conductors and a molecule is deposited in the well such that the deposited molecule contacts the exposed outer surfaces of the first and second conductors.

Abstract: An electrochemical cell (1) comprises firstly a negative electrode (9) and a positive electrode (10), each comprising a current collector (11, 15) having a first portion (12, 16) defining a connection terminal (13, 18) extending from a second portion (14, 19) provided with an active material (15, 20), the connection terminals (13, 18) being placed on either side of an electrically insulating layer (22) and co-operating therewith to define a single connection tab (3), the cell also having a case (4) housing in leakproof manner the second portions (14, 19) of the current collectors (11, 15) while leaving at least a portion of the single connection tab (3) projecting outwards.

Abstract: A feedthrough assembly and method for a battery includes a corrosion-prone pin coupled to a corrosion-resistant current collector and protected from the battery electrolyte by a protective covering. The current collector is connected to the battery electrode without danger of exposing the pin to the electrolyte.

Abstract: A safety apparatus for a secondary battery, which can interrupt current flow in a reliable manner, and a secondary battery having the same, are provided. The safety apparatus includes a case made of an insulating resin material, sealed to have a space inside and mounted inside the secondary battery, at least a portion of the case being shrinkable by an increase in external pressure, and an electrical connection member installed to penetrate the case such that its one end is electrically connected to an electrode plate of an electrode assembly of the battery and the other end is electrically connected to a terminal portion of the electrode plate, the electrical connection member being cut by the shrinking portion of the case.

Abstract: An electrode plate unit capable of suppressing the internal short circuit caused by flashing that is formed on the end portion of a positive electrode plate and a battery using the same. The electrode plate unit includes a group of electrode plates in which a plurality of positive electrode plates and a plurality of negative electrode plates are laminated alternately via separators, a positive electrode collector plate connected to one side face of the group of electrode plates for connection to the positive electrode plate, and a negative electrode collector plate connected to another side face of the group of electrode plates for connection to the negative electrode plate, wherein the edge portion of the positive electrode plate is protruded from the edge portion of the negative electrode plate on the entire side face excluding the side face to which the negative electrode collector plate of the group of electrode plates is connected.

Abstract: An electrode plate unit capable of suppressing the internal short circuit caused by flashing that is formed on the end portion of a positive electrode plate and a battery using the same. The electrode plate unit includes a group of electrode plates in which a plurality of positive electrode plates and a plurality of negative electrode plates are laminated alternately via separators, a positive electrode collector plate connected to one side face of the group of electrode plates for connection to the positive electrode plate, and a negative electrode collector plate connected to another side face of the group of electrode plates for connection to the negative electrode plate, wherein the edge portion of the positive electrode plate is protruded from the edge portion of the negative electrode plate on the entire side face excluding the side face to which the negative electrode collector plate of the group of electrode plates is connected.

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: The present invention relates to an electrical storage cell (1) comprising a positive terminal (5), a negative terminal (4), a positive electrode (8) and a negative electrode (9) electrically connected to the positive terminal and to the negative terminal, respectively. Additionally, there is a collector of a first polarity (20) having a plane part (21) is electrically connected to the electrode of the first polarity, and bent electrical connection means (26) connecting the plane of the collector to the terminal of the first polarity and having a bending radius of curvature less than that of a part having the same thickness as the plane part. The invention also relates to the method of assembling this kind of electrical storage cell.

Abstract: This invention includes an improved interconnect assembly for use in rechargeable battery packs for laptop computers. The invention eliminates manufacturing defects resulting from the hand soldering processes of the prior art. The assembly provides interconnection for rechargeable cells oriented end to end, in parallel rows. Insulated runners provide interconnection to a bus located along the center of the end to end cells. The bus is a flexible circuit that couples to a printed circuit board. In one preferred embodiment, the bus is less than two inches in diameter and less than the diameters of the parallel rows of end to end cells in length. The assembly eliminates the need for hand soldering, eliminates cumbersome wire routing, and offers multiple insulation features that prevent electrical shorts.

Abstract: In a battery having a wound electrode element (28) which is made contact with by means of a pin (25), a contact connection (23a) is fitted on the outer face and is electrically connected to the pin (25) which is arranged in the housing (24). The connection (21, 25) between the pin (25) and the contact connection (23a) can also be tightened mechanically. In consequence, the pin (25) can be used at the same time as the holding element for the wound electrode (28), which leads to space being saved within the battery housing (24). Furthermore, the connection (21, 25) which can be tightened mechanically can be produced very easily, is robust and is scarcely susceptible to corrosion. It also allows a seal, which is impermeable to gases, for the battery interior. The battery is particularly suitable for mobile small and miniature appliances which draw a high current, so that their battery must be replaced frequently.

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: An electric storage battery and method of manufacture thereof characterized by a feedthrough pin which is internally directly physically and electrically connected to an inner end of a positive electrode substrate. A C-shaped mandrel extends around the pin and substrate end enabling the pin/mandrel to be used during the manufacturing process as an arbor to facilitate winding layers of a spiral jellyroll electrode assembly. The pin additionally extends from the battery case and in the final product constitutes one of the battery terminals with the battery case comprising the other terminal. Active material is removed from both sides of the outer end of the negative electrode in the jellyroll to allow room for adhesive tape to secure the jellyroll. The electrolyte is injected through the open end of the case after the endcap is welded to the negative electrode but before sealing the endcap to the case. The electrolyte is preferably injected through the C-shaped mandrel to facilitate and speed filling.

Abstract: An electric storage battery and method of manufacture thereof characterized by a feedthrough pin which is internally directly physically and electrically connected to an inner end of a positive electrode substrate. A C-shaped mandrel extends around the pin and substrate end enabling the pin/mandrel to be used during the manufacturing process as an arbor to facilitate winding layers of a spiral jellyroll electrode assembly. The pin additionally extends from the battery case and in the final product constitutes one of the battery terminals with the battery case comprising the other terminal. Active material is removed from both sides of the outer end of the negative electrode in the jellyroll to allow room for adhesive tape to secure the jellyroll. The electrolyte is injected through the open end of the case after the endcap is welded to the negative electrode but before sealing the endcap to the case. The electrolyte is preferably injected through the C-shaped mandrel to facilitate and speed filling.

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 laminate cell comprises a power generating element formed by sequentially stacking positive electrode plates and negative electrode plates while interposing separators therebetween; a positive tab connected to the positive electrode plates through a plurality of positive leads; a negative tab connected to the negative electrode plates through a plurality of negative leads; and a cell package formed of a metal composite film, the cell package hermetically sealing the power generating element and an electrolyte. According to the laminate cell, the heat capacity of a portion of the positive tab, onto which a plurality of the positive leads are joined, and the heat capacity of a portion of the negative tab, onto which a plurality of the negative leads are joined, are made larger than that of other portions of the positive tab and the negative tab.

Abstract: A battery including an electrode unit housed in a battery can and which generates electricity which can be taken out of the battery via a pair of negative and positive electrode terminals, wherein a terminal assembly is installed in the battery, a current collector plate is connected to an edge of an electrode of the electrode unit for connecting the electrode unit to the terminal assembly, and one or more than one connecting piece which is protrusively formed on a surface of the current collector plate is welded and secured to a base portion of the terminal assembly.

Abstract: A battery module is fabricated as follows. A plurality of elements for electromotive force is accommodated in a one-piece cylindrical case and is arranged in series in an axial direction of the case. The elements for electromotive force are electrically connected through an electric connector passing through a resin partition wall which separates the elements for electromotive force from one another. The both ends of the case are sealed with sealing plates.