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| Number | Title | Issue Date |
| 8088510 | Lithium secondary battery comprising double-structured battery case A lithium secondary battery having enhanced safety, which includes an electrode group, a non-aqueous electrolyte and a battery can for housing them. The electrode group includes: a positive electrode having a strip-shaped positive electrode current collector and a m... | 01/03/2012 |
| 7968226 | Contoured battery for implantable medical devices and method of manufacture 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 preferably planar, major bottom portion, an open top... | 06/28/2011 |
| 7470487 | Battery and battery manufacturing method A battery having a bundle of electrodes and separator which is made by winding a positive-electrode plate and a negative-electrode plate together with a separator therebetween, one of the positive- and negative-electrode plates being electrically connected to a powe... | 12/30/2008 |
| 7416811 | Electric storage battery construction and method of manufacture An electric storage battery and method of manufacture thereof. Active material (78) is removed from both sides of the outer end (88) of the negative electrode (70) in a jellyroll (84) to allow room for adhesive tape (96) to secure ... | 08/26/2008 |
| 7393611 | Sealed rechargeable battery and battery module A sealed rechargeable battery includes: a metal case having an elliptical or rectangular cross section; a metal sealing plate for sealing an opening at one end of the case; and an electrode plate assembly being housed in the case with an electrolyte solution. In thi... | 07/01/2008 |
| 7314685 | Oxidized titanium as a cathodic current collector A titanium substrate having a thickened outer oxidation layer provided thereon by a treatment process performed either in an air atmosphere at elevated temperatures or through electrolytic oxidation (anodization), is discribed. The thusly conditioned titanium substr... | 01/01/2008 |
| 7108942 | Efficient electrode assembly design for cells with alkali metal anodes Electrochemical cells having the casing as part of the anode current collector are described. In particular, the anode is divided into two sections. In one section, lithium metal is pressed directly into contact with the inner surface of the casing. No anode current... | 09/19/2006 |
| 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 |
| 7060388 | Nonaqueous electrolyte secondary battery An electric power generating element of a battery is covered with an electric conductor including a positive conductor member electrically connected to a positive plate, a negative conductor member electrically connected to a negative plate, and a separating member.... | 06/13/2006 |
| 6977124 | Contoured casing 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. ... | 12/20/2005 |
| 6936079 | Process for assembling an electrochemical cell A process for assembling an electrochemical cell that utilizes an electrode containment shield to prevent internal electrical short circuits that are caused by fragments of a frangible electrode coming into contact with the battery's opposing electrode. The shield, ... | 08/30/2005 |
| 6908703 | Sealed battery having an electrode substrate exposed portion extending from the electrode assembly A sealed battery has an outer can having an opening and functioning as an electrode terminal, a sealing member fitted in the opening of the outer can and functioning as an electrode terminal which is different in polarity from the outer can, and a spiral-wound elect... | 06/21/2005 |
| 6828061 | Electrochemical cell with reinforced separator An electrochemical cell with a separator having a reinforced edge that provides structural rigidity to the separator after it has been contacted by the cell's electrolyte. The reinforced edge extends beyond the interface between the cell's electrodes and serves to c... | 12/07/2004 |
| 6824571 | Hydrogen absorbing alloy electrode, manufacturing method thereof, and alkaline storage battery equipped with the hydrogen absorbing alloy electrode After coating a hydrogen absorbing alloy slurry obtained by kneading a hydrogen absorbing alloy powder 12a, a polyethylene oxide (PEO) powder as a binder 12b, and a suitable amount of water (a solvent for binder) to both surfaces of a met... | 11/30/2004 |
| 6805994 | Solid electrolyte cell having a rolled electrolyte body A positive electrode has a strip electrode collector whose both sides are coated with a positive electrode active material layer and a negative electrode has a strip negative electrode collector whose both sides are coated with a negative electrode active material l... | 10/19/2004 |
| 6472089 | Bottom cover design for battery with reverse protection An electrochemical cell is provided that has a negative terminal cover with a hole therein or a raised portion with notches therein to provide adequate air ingress during the coating of a non-conductive material on the raised portion of the negative termi... | 10/29/2002 |
| 6461764 | Protective case for electric parts, and storage battery pack A protective case for housing electric parts such as a storage battery (2) and a protective circuit (3). For example, the case comprises a body (1A) and a lid (1B). The body (IA) is formed integrally with a first terminal piece (4), which connects a termi... | 10/08/2002 |
| 6444357 | Non-aqueous electrolyte secondary battery A plurality of slit-shaped space regions are provided on an anode active material layer on a front surface or a rear surface of an anode sheet so as to reach end planes to make it easy to inject an electrolyte into a scrolled body or a jelly roll of a non... | 09/03/2002 |
| 6258132 | Process for producing in an alkaline cell an in situ silver layer on a cathode container The present invention is a process for producing a silver layer, in situ, on an internal wall of a cathode container of an alkaline cell and the alkaline cell produced by the process. In the process a silver compound is dissolved in the cathode, which is ... | 07/10/2001 |
| 6248473 | Composite cover for a battery An electrochemical cell of the present invention includes a composite cover assembly for the closed end of the cylindrical can of the electrochemical cell. The composite cover includes an electrically conductive contact terminal having a diameter substant... | 06/19/2001 |
| 6040083 | Alkaline dry cell containing a can of nickel-plated steel having an inner surface of graphite An object of the present invention is to improve the alkaline dry cell performance by modifying a positive cell case. An alkaline dry cell comprises a can as both of a terminal and a cell case 1 for accommodating a power generating element, prepared by dr... | 03/21/2000 |
| 5905001 | Electrode edge design The present invention is directed to a novel electrode edge having a full radius shape used in combination with a novel terminal lead/current collector connection to increase both the gravimetric and volumetric energy densities of the cell by occupying pr... | 05/18/1999 |
| 5834133 | Laser-sealed battery A battery is provided which includes: an electrode roll having a positive-electrode plate, a negative-electrode plate and a separator interposed therebetween; a battery casing accommodating the electrode roll; and a sealing plate laser-welded to an open e... | 11/10/1998 |
| 5814419 | Alkaline manganese dioxide electrochemical cell having coated can treated with sodium silicate The performance characteristics of alkaline manganese dioxide cells are improved by applying a thin, polymeric coating to the inner surface of an unplated steel positive current collector, and treating the current collector with an aqueous solution of sod... | 09/29/1998 |
| 5626983 | Zinc anode for reduced environmental hazard LeClanche cell having improved performance A low iron zinc anode for a LeClanche cell, and methods of making and using same, are provided for in the invention. The zinc anode contains at least 95% zinc and no more than about 12 ppm iron, and may be configured for use in round or flat LeClanche cel... | 05/06/1997 |
| 5447809 | Alkaline primary battery containing coated current collector The performance characteristics of alkaline batteries are improved by applying a thin, polymeric coating to the inner surface of a positive current collector. The polymeric coating comprises, in combination, a first film forming binder component and a sec... | 09/05/1995 |
| 5079108 | Dry cell seal closure An improved dry cell seal closure is disclosed which will substantially prevent moisture loss from and/or oxygen ingress into a battery cell while maximizing the volume available within the cell for the cathode mix core. The seal closure comprises a seal ... | 01/07/1992 |
| 5075958 | Separator for electrochemical cell and process for the assembling it into the cell An electrochemical cell, such as an alkaline cell, employing a multi-strip separator formed into a closed end cylindrical configuration and where an electrically insulating barrier, such as a plastic film, is disposed at the bottom surface of the separato... | 12/31/1991 |
| 4977043 | Rectangular sealed alkaline storage battery with negative electrode comprising hydrogen storage alloy The present invention relates to improvement of an active material of a negative electrode in a rectangular sealed alkaline storage battery. That is, by using a hydrogen storage alloy as the active material of the negative electrode, a capacity density as... | 12/11/1990 |
| 4957832 | Plastic sealing element for a galvanic primary cell A plastic sealing element for dry cells includes a radially symmetrical, centrally perforated base element, the upper side of which is provided with an elastomeric sealing material which is extruded in the form of a circumferential annular bead, and a pro... | 09/18/1990 |
| 4663248 | Electrode terminal contact Terminal contact is made between an electrode in an electrochemical cell and the external terminal therefor by capture of an electrically conductive portion of said electrode within or by a member of a compressively formed seal of the cell.... | 05/05/1987 |
| 4419418 | Individual rechargeable electric cell Individual rechargeable electric cell with an outer metal housing, an electrolyte tube open at the top arranged coaxially in the housing, liquid sodium in the tube, a current collector extending down through the open end of the tube into the sodium, an al... | 12/06/1983 |
| 4384029 | Rechargeable galvanic element A rechargeable galvanic element with constant-volume positive manganese dioxide electrode. In a rechargeable galvanic element having an alkaline electrolyte and a positive manganese dioxide electrode the volumetric change of the electrode body caused by p... | 05/17/1983 |
| 4355085 | Electrochemical cell A primary electrochemical cell having a carbon current collector cathode structure of improved design. The electrochemical cell includes an elongated housing containing an electrolytic solution and a battery stack in contact with the electrolytic solution... | 10/19/1982 |
| 4078126 | Electric cell The invention relates to a preferably cylindrical electric cell having its anode constituted by a tube made of zinc for example. One end of the tube fits into a metallic cup having a bottom and a cylindrical wall; a gasket is interposed between the tube a... | 03/07/1978 |
