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| Number | Title | Issue Date |
| 7407724 | Embedded electrode conformations for balanced energy, power, and cost in an alkaline cell A battery cell, such as a cylindrical or prismatic alkaline cell, is disclosed having significantly improved capacity utilization at mid-range power levels of discharge by implementing a curvilinear-like inner electrode configuration that provides moderated surface ... | 08/05/2008 |
| 7393440 | Hydrogen generation system The present invention provides a system for generating hydrogen gas in an aqueous solution based electrolytic or galvanic cell wherein the cathode is made from aluminum or an aluminum alloy. In a preferred arrangement the cell is a galvanic cell and cathode is made ... | 07/01/2008 |
| 7344803 | Alkaline primary battery An alkaline primary cell which is improved in reduction of self-discharge and cell capacity under storage at a high temperature, has a prolonged life and makes use of nickel oxyhydroxide is provided inexpensively. β-Form nickel oxyhydroxide is contained in a positi... | 03/18/2008 |
| 7264904 | Cylindrical battery cell having improved power characteristics and methods of manufacturing same A battery cell, such as a cylindrical alkaline cell, is disclosed having significantly improved capacity utilization at high discharge rates while maintaining much of the energy content and other feature advantages of typical cylindrical alkaline cells, by implement... | 09/04/2007 |
| 7074516 | Vent for cylindrical electrochemical batteries An electrochemical cell is presented having a gasket that is sealed against the container to prevent electrolyte leakage during normal operation. When the internal pressure of the cell reaches a predetermined threshold, the seal is removed, thereby permitting electr... | 07/11/2006 |
| 7056608 | Current collector for use in a fuel cell A current collector for use in a fuel cell is described and wherein the fuel cell includes an ion exchange membrane having opposite anode and cathode sides, and a current collector is disposed in ohmic electrical contact with each of the anode and cathode sides, and... | 06/06/2006 |
| 7045247 | Battery cathode A cathode having a groove extending about 10 to about 450 microns into a surface of the cathode. The cathode can also be roughened. ... | 05/16/2006 |
| 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 |
| 6878483 | Separator for solid electrolyte condenser and solid electrolyte condenser using the same An object of the present invention is to provide a separator which is excellent in sticking and adhesion capability with the solid electrolyte, physically strong and highly heat-resistive and to provide a solid electrolyte condenser which is excellent in the impedan... | 04/12/2005 |
| 6849357 | Battery, a process for producing the battery, a process for producing a battery case, and a battery pack The present invention relates to a battery using a case of which the section of the lower part containing an electric element is square or hexagonal and the section of the upper part containing a sealing plate is circular or elliptic. By virtue of the shape of the l... | 02/01/2005 |
| 6833217 | Battery cathode A cathode that includes manganese dioxide and relatively small particles of nonsynthetic, nonexpanded graphite is disclosed. The graphite particles can have an average particle size of less than 20 microns. The cathode can be used in an electrochemical cell, such as... | 12/21/2004 |
| 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 |
| 6677079 | Electrochemical cell formed with can having inwardly curved groove An electrochemical cell is provided having a non-cylindrical container including one or more side walls each having a curved surface that curves radially inward. The electrochemical cell further includes first and second electrodes and a separator dispose... | 01/13/2004 |
| 6656629 | High rate electrochemical cell An electrochemical cell construction having a large anode-to-cathode interfacial surface area to realize improved high rate service performance in an easy-to-manufacture construction. A first electrode, such as the cathode, is formed having a conductive c... | 12/02/2003 |
| 6653016 | Extended temperature operating range electrochemical cells An electrochemical cell having a cell can that includes an interior surface, a current collector, a solid cathode contained in the can and in conductive contact therewith, an organic or solid polymer electrolyte comprising lithium salt solutes and aprotic... | 11/25/2003 |
| 6627349 | Electrode for an electrochemical cell An electrochemical cell and an electrode for use in an electrochemical cell is provided. The electrochemical cell has a container, a positive electrode disposed in the container and having a wall defining an interface surface, a negative electrode dispose... | 09/30/2003 |
| 6566008 | Sealed alkaline storage battery A sealed alkaline storage battery using, as a positive electrode active material, nickel oxyhydroxide including Mn as a solid-solution element and having a γ ratio of 65 through 100%; a sealed alkaline storage battery using, as a positive electrode activ... | 05/20/2003 |
| 6517975 | Lithium element and anode assembly for an electrochemical cell In electrochemical cells for medical devices having anodes assemblies, an anode assembly includes a folded lithium element having a first and second section. The first and second sections are for receiving a current collector therebetween. A method of for... | 02/11/2003 |
| 6482543 | Alkaline cell with improved cathode and current collector configuration An alkaline cell having an anode comprising zinc and a cathode comprising manganese dioxide wherein the cathode is located annularly along the inside surface of the cell housing and has a plurality of indentations on the inside of its surface facing the c... | 11/19/2002 |
| 6472099 | Cathode indentations in alkaline cell An alkaline cell having an anode comprising zinc and a cathode comprising manganese dioxide wherein the cathode is located annularly along the inside surface of the cell housing and has a plurality of indentations on the inside of its surface facing the c... | 10/29/2002 |
| 6444364 | High performance battery A battery, such as an alkaline battery, that can provide a high energy output at a high rate and that has a relatively high ratio of manganese dioxide to cathode volume is disclosed. The battery can provide high energy output at a high rate when the batte... | 09/03/2002 |
| 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 |
| 6410187 | Primary alkaline battery A primary alkaline battery includes a housing, a cathode within the housing, an anode within the housing, and a separator electrically separating the anode and the cathode. The battery has a substantial (S/V)2 value.... | 06/25/2002 |
| 6368738 | Air depolarized electrochemical cell An air depolarized cell comprises an anode, a cathode, including an air cathode assembly openly exposed to the ambient environment and/or defining at least a portion of the outer surface of the cell. The cell can comprise a bottom member defining a bottom... | 04/09/2002 |
| 6326102 | High rate electrochemical cell with increased anode-to-cathode interface surface area An electrochemical cell construction having a large anode-to-cathode interfacial surface area to realize improved high rate service performance in an easy-to-manufacture construction. A first electrode, such as the cathode, is formed having a conductive c... | 12/04/2001 |
| 6312848 | Electrical rechargeable battery in the form of a button cell An electrical accumulator having a case in the form of a button cell which is closed such that it is gastight, including a case cover and a case cup with an interposed electrically insulating seal, which contain an electrode set including positive and neg... | 11/06/2001 |
| 6261709 | Air depolarized electrochemical cell having mass-control chamber in anode This invention teaches an elongate air depolarized electrochemical cell. The cell has a cathode, including an air cathode assembly, and a separator disposed inwardly of the air cathode assembly. A bottom member defines a bottom of the cell. An anode cavit... | 07/17/2001 |
| 6235422 | Battery A battery includes a housing, a first electrode, a second electrode having a plurality of cavities within the first electrode, a separator between each cavity and the first electrode, a seal positioned above the first electrode and the cavity, and a curre... | 05/22/2001 |
| 6235429 | Alkaline dry cell An alkaline dry cell includes an anode inside a cathode. The anode includes a metal anode current collector inside an gel anode, which has zinc alloy powder as an active material. The cathode includes a cathode depolarizing mixture, which has electrolytic... | 05/22/2001 |
| 6207321 | Sodium secondary battery A sodium secondary battery which assures excellent sealing and can be manufactured in a simple manner is provided. The battery includes a negative electrode chamber defined by the inside of a bottom-closed, hollow cylindrical, solid electrolyte accommodat... | 03/27/2001 |
| 6200700 | Alkaline secondary battery The present invention is directed to an alkaline secondary battery comprising a positive electrode, a zinc based negative electrode, and an alkaline electrolyte solution, wherein the positive electrode includes a central cavity for receiving the zinc base... | 03/13/2001 |
| 6153330 | Alkaline manganese dioxide electrochemical cell having coated can treated with silicon compounds 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 including a silicon compound in the coating. The polymeric coa... | 11/28/2000 |
| 6150052 | Electrode for an electrochemical cell including stacked disks An electrode is disclosed that includes a plurality of stacked disks. The electrode is preferably a negative electrode of an alkaline cell and the disks are preferably formed of zinc. By forming the negative electrode of such zinc disks, the discharge cap... | 11/21/2000 |
| 6127061 | Catalytic air cathode for air-metal batteries An air cathode for use in an electrochemical cell or battery having an air permeable and water impermeable layer, an electrically conductive middle layer and a catalytic layer comprising a mixture of carbon particles, particulate materials, having a high ... | 10/03/2000 |
| 6077626 | Alkaline storage battery and method for charging battery In an alkali storage battery comprising a positive electrode, a negative electrode and an alkali electrolyte in a battery can, -nickel hydroxide containing manganese is used as a cathode active material for the positive electrode, and the differenc... | 06/20/2000 |
| 6074781 | Electrochemical cell having increased anode-to-cathode interface area An electrochemical cell having a large anode-to-cathode interface area which achieves low current density to provide high cell efficiency. The electrochemical cell includes a can containing a first electrode and a second electrode. The first electrode has... | 06/13/2000 |
| 5968682 | Coated metal sheet for battery containers, battery containers and batteries produced thereof A coated metal sheet for use in a battery container is made up of a metal sheet, one side of which is coated with a coating that includes a resin having rubber elasticity, a plasticizer, a crosslinking agent, and a conductive powder. A battery container o... | 10/19/1999 |
| 5948561 | Electrochemical cell and method of assembly An electrochemical cell and method for achieving increased anode-to-cathode interface area to realize enhanced service performance are disclosed. A first electrode, such as a cathode, is provided in a container and a cavity is formed in the first electrod... | 09/07/1999 |
| 5888667 | Separator for jelly-roll type electrode The unnecessary portion of the separator which prevents the short-circuit between the cathode and the anode In the center of a cylindrical cell is cut off using cutting apparatus or laser beam to increase the inner space of the cell and the electrolyte, a... | 03/30/1999 |
| 5869205 | Electrochemical cell having multiple anode compartments An electrochemical cell is provided having a first electrode, such as a cathode, and a plurality of second electrodes, such as anodes, provided in a cell container. A plurality of cavities are formed within the cathode. A separator and anode are disposed ... | 02/09/1999 |
