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| Number | Title | Issue Date |
| 7998612 | Secondary battery An electrode group is constructed by disposing a positive electrode current collector exposed portion on one end side and a negative electrode current collector exposed portion on the other end side. A positive electrode current collector terminal plate and a negati... | 08/16/2011 |
| 7384708 | Non-aqueous electrolyte battery A non-aqueous electrolyte battery of the present invention includes a non-aqueous electrolyte containing a lithium salt, a cyclic sultone derivative, and an acid anhydride, wherein the non-aqueous electrolyte contains the cyclic sultone derivative in an amount of 0.... | 06/10/2008 |
| 7273675 | Aqueus electrolytic solution primary battery The invention provides a battery including a power generating element container, a positive electrode mixture, and a hydrogen gas permeable sheet provided in an opening of the power generating element container, the hydrogen gas permeable sheet having a water repell... | 09/25/2007 |
| 7169507 | Manganese dry battery 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 fi... | 01/30/2007 |
| 7132198 | Battery A primary alkaline battery includes a cathode having manganese dioxide and carbon particles, an anode, a separator and an alkaline electrolyte. The carbon particles include expanded graphite particles and non-expanded graphite particles. The expanded graphite partic... | 11/07/2006 |
| 7122270 | Electrochemical cell having venting current collector and seal assembly A low profile collector and seal assembly for sealing the open end of a container of an electrochemical cell and providing venting of pressurized gases. An electrochemical cell has a can with a closed bottom end and an open top end, positive and negative electrodes ... | 10/17/2006 |
| 7074520 | Contoured casing of mating clamshell portions for an electrochemical cell The present invention provides an electrochemical cell of either a primary or a secondary chemistry housed in a casing having opposed major side walls of a contoured shape. ... | 07/11/2006 |
| 6877216 | Heat-sealing machine, heat-sealing method, embossing method, work pressing machine and workpiece A polymer battery module (2) provided with tabs (4) is put in a package (5) and an open end part of the package (5) is heat-sealed by a heat-sealing machine (10). The heat-sealing machine (10) is provided with a pair of seal... | 04/12/2005 |
| 6696198 | Flat battery The instant specification discloses a flat battery constituted by sealing a power generation element with: a case that works as one electrode terminal; a sealing plate that works as the other electrode terminal and has a flat central section projected out... | 02/24/2004 |
| 6514637 | Alkaline cell with cathode surface protector An electrochemical separator is formed insitu on an electrode surface within an electrochemical cell, preferably an alkaline cell cathode surface. The alkaline cell comprises a zinc anode, a and potassium hydroxide electrolyte. The cathode may comprise a ... | 02/04/2003 |
| 6451478 | Coin-shaped battery and method for producing the same A gasket-integrated case is obtained by punching out a circular piece from a metal sheet on which a gasket resin film having a round hole is integrally laminated with an adhesive, in such a way as to have a diameter concentric with, but larger than, the r... | 09/17/2002 |
| 6426867 | Protection device having tapered ribs and method of assembling a battery with a protection device and an electrical component A protection device for an electrical component that has a protective housing and a terminal cap. The protective housing has a base with a contact hole therethrough for accommodating an electrical terminal pin. A projecting perimeter wall extends from the... | 07/30/2002 |
| 6423438 | Method for sealing battery container A method of sealing an end of a battery container is disclosed. The method includes: (a) providing a plurality of supports in a wall of the container toward the end of the container; (b) scoring the wall of the container at a position between the end of t... | 07/23/2002 |
| 6410186 | Battery construction having double seam cover closure An electrochemical cell constructed in accordance with the present invention includes a can for containing electrochemical materials including positive and negative electrodes and an electrolyte, the can having an open end and a closed end; a pressure rel... | 06/25/2002 |
| 6346342 | Battery having pressure relief mechanism formed in container An electrochemical cell having a container with a closed bottom end, an open top end, and side walls extending between the top and bottom ends has a pressure relief mechanism formed in the bottom end, and positive and negative electrodes disposed in the c... | 02/12/2002 |
| 6287350 | Collector assembly for an electrochemical cell including an integral seal/inner cover An electrochemical cell constructed in accordance with the present invention includes a can for containing electrochemical materials including positive and negative electrodes and an electrolyte, the can having an open end and a closed end; an integral se... | 09/11/2001 |
| 6265102 | Prismatic metal-air cells The invention provides a metal-air electrochemical cell, having a leak-proof, metal prismatic casing comprising a pair of interfacing interengaging rectangular tray-like casing components, a first substantially rectangular tray-like casing component havin... | 07/24/2001 |
| 6228530 | Dry cell and method of manufacturing outer metal jacket thereof Notches (21a, 21b) are formed at the corners of only one side edge (19a) of a metal jacket blank (19) of a rectangular metal strip. The blank (19) is rolled into a cylindrical shape so that its opposite sides (19a, 19b) are adjoined to each other forming ... | 05/08/2001 |
| 6224640 | V-shaped gasket for galvanic cells An electrochemical cell containing a V-shaped gasket for sealing the cell and preferably the gasket has a compressive preloading on a selected area of the gasket to prevent premature venting of the cell.... | 05/01/2001 |
| 6203937 | Hermetic closure seal A closed container is filled through a metal fill port which is then sealed with a rigid metal ball press fitted into the port passageway.... | 03/20/2001 |
| 6027829 | Insulative sealing gaskets and a thin profile battery A method of forming a button-type battery includes: a) positioning first and second terminal housing members in facing juxtaposition to one another, and providing an anode, a cathode and an electrolyte intermediate the first and second terminal housing me... | 02/22/2000 |
| 6010802 | Current collector assembly Collector assemblies and methods of making and using them, and electrochemical cells made with such current collector assemblies, are disclosed. The invention provides a current collector assembly which permits safe, effective venting of pressure in the c... | 01/04/2000 |
| 6001504 | Prismatic battery housing The invention features a prismatic battery with an electrically conductive housing comprising an elongated, prismatic can with an open end, and a housing cover pressed into the open end of the can and welded in place. The novel cover has an outer flange a... | 12/14/1999 |
| 5981103 | Assemblies of electronic devices and flexible containers therefor An assembly of an electronic device within a sealed chamber of a flexible container. The electronic device, which may be a printed circuit board, has signal terminals connected to elongated insulated signal conductors. These conductors pass through a lami... | 11/09/1999 |
| 5935731 | Cylindrical battery A non-aqueous electrolyte battery wherein the battery element comprising a cathode, an anode and separator, is housed and sealed completely into a cylindrical metallic casing after being impregnated with electrolyte, and said battery is featured by that t... | 08/10/1999 |
| 5932371 | Snap-through gasket for galvanic cells An electrochemical cell containing a snap-through sealing gasket that has a compressive preloading on a selected area of the snap-through gasket to prevent premature venting of the cell.... | 08/03/1999 |
| 5896647 | Sealed electrical device with unitary fill port and terminal construction Unitary fill port and terminal constructions and methods for filling and sealing are disclosed for electrical devices comprising liquids. The invention is particularly suited for use in prismatic batteries comprising non-aqueous organic electrolytes.... | 04/27/1999 |
| 5843596 | Methods of forming button type batteries and to button type battery insulating and sealing gaskets A method of forming a button-type battery includes: a) positioning first and second terminal housing members in facing juxtaposition to one another, and providing an anode, a cathode and an electrolyte intermediate the first and second terminal housing me... | 12/01/1998 |
| 5821010 | Galvanic cell having a reliable sealable vent closure A sealed galvanic dry cell that has a sealing means comprising a terminal cover having a peripheral extending flange that is compressed between a neutral cover and a rim of the open end of a cell's container by use of a compressable gasket that operates s... | 10/13/1998 |
| 5776631 | Safety snap-through seal for galvanic cells An electrochemical cell containing a vent assembly for sealing the cell and having a snap-through seal membrane in the form of a concave contour that is designed to snap from a concave contour to a convex contour and rupture upon the build-up of a predete... | 07/07/1998 |
| 5759713 | Upward deflecting support disk for electrochemical cell seal A metal support disk useful in sealing an electrochemical cell exerts a resilient outward radial force against the seal to assure seal integrity over a wide temperature range and exerts an upward force against an adjacent metal end cap terminal to assure ... | 06/02/1998 |
| 5750283 | Seal for electrochemical cell An electrochemical cell has a wheel shaped, molded plastic seal member of a unitary construction which includes a central cylindrical hub from which depend in outward radial sequence, an annular pressure vent, a boss, a downward projecting skirt, an annul... | 05/12/1998 |
| 5725967 | Battery container and method of manufacture A container for a battery and a method for manufacturing such a container are provided. The container includes a housing; a cover adapted for attachment to the housing by crimping; and a gasket crimped to the cover and housing. One or more grooves are for... | 03/10/1998 |
| 5667912 | Current collector assembly for an electrochemical cell An electrochemical cell including a current collector assembly having a current collector, a seal and a compression means wherein the compression means and collector exert minimum tension and maximum compressive stresses on the seal thereby avoiding leaka... | 09/16/1997 |
| 5665489 | Thin profile batteries with solid electrolyte A button-type battery is disclosed comprising a cathode, an anode, a solid electrolyte, a first terminal housing and a second terminal housing. The cathode is bonded to a conductive substrate which bears against one of the terminal housings. The anode has... | 09/09/1997 |
| 5658356 | Metal-air cathode can having reduced corner radius and electrochemical cells made therewith This invention pertains to electrode cans and metal air electrochemical cells made with the electrode cans. The invention provides improved structure, and methods for making the outer edge of the closed end of the can at the joinder of the closed end of t... | 08/19/1997 |
| 5589293 | Sealed galvanic cell with injection molded top A sealing and insulating member for a cylindrical galvanic cell wherein said member comprises a plurality of vent membranes of non-circular configuration. The seal can readily be made from mineral filled polyolefin material by injection molding.... | 12/31/1996 |
| 5582930 | High energy density metal-air cell This invention pertains to alkaline electrochemical cells, typically to metal-air cells of the button-type. Non-reactive elements of cells of the invention are thinner than corresponding non-reactive elements of prior art cells. Such elements can be made ... | 12/10/1996 |
| 5576117 | Flat-type cell A flat-type cell comprising cup shaped positive and negative electrode cases, each having a cylindrical part with the negative electrode case being placed inside the positive electrode case with their cylindrical parts facing each other with a gasket in b... | 11/19/1996 |
| 5532081 | Upward deflecting support disk for electrochemical cell seal A metal support disk for an electrochemical cell seal exerts a resilient outward radial force against the seal to maintain seal integrity over a wide range of operating temperature and, at the same time, exerts an upward force against the bottom of the me... | 07/02/1996 |
