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| Number | Title | Issue Date |
| 8092939 | Manganese dry battery containing an anode zinc can made of zinc and bismuth A virtually lead additive-free but highly reliable and practical anode zinc can for a battery with improved process-ability and corrosion resistance. A manganese dry battery comprising such a zinc can. A manufacturing method for making the zinc can and a battery. | 01/10/2012 |
| 8080339 | Gelled negative electrode for alkaline battery and alkaline battery A gelled negative electrode contains zinc powder, alkaline electrolyte, and a gelling agent. The specific surface area of the zinc powder is in the range between 0.025 and 0.045 m2/g. The gelling agent contains, as a main component, a cross-linked polymer... | 12/20/2011 |
| 8039150 | Agglomerated zinc powder anode Zinc electrodes for use in batteries, the electrode containing an organic gelling agent, an organic binding agent, calcium zincate and an electro-active element. A method of manufacturing such electrodes, and use of such electrodes in primary and secondary batteries... | 10/18/2011 |
| 8017271 | Alkaline electrochemical cell with a blended zinc powder An electrochemical cell with a blended zinc powder is disclosed. The blended zinc powder includes selected portions of a first zinc powder and a second zinc powder. In a preferred embodiment, the first and second powders are divided into groups based on ranges in th... | 09/13/2011 |
| 7947393 | Alkaline electrochemical cell An alkaline electrochemical cell capable of providing optimum run times at both high drain rates and low drain rates is disclosed. In one embodiment, the cell's gelled anode incorporates a limited quantity of zinc powder having specific physical characteristics that... | 05/24/2011 |
| 7897282 | AA alkaline battery An AA alkaline battery according to the present invention includes: a positive electrode; a negative electrode; a separator; an alkaline electrolyte; and a negative electrode current collector. The negative electrode contains zinc, indium, and bismuth. The weight of... | 03/01/2011 |
| 7858235 | Ceramic conductor pre-treated by oxidising for a zinc anode The invention relates to an additive to the active mass of a zinc anode for an alkaline secondary electrochemical generator. Said additive contains conductive ceramic powder, preferably titanium nitride particles which is exposed to an oxidation pre-treatment prior ... | 12/28/2010 |
| 7838158 | Sheet anodes based on zinc-aluminum alloys and zinc-air batteries containing the same The present invention provides a sheet anode based on modified zinc-aluminum alloys and Zinc-Air batteries containing the same. The sheet anode is consisted of ZnxAlyMz, wherein M comprises an element selected from the group consisti... | 11/23/2010 |
| 7833663 | Method of manufacturing nickel zinc batteries Methods of manufacturing a rechargeable power cell are described. Methods include providing a slurry or paste of negative electrode materials having low toxicity and including dispersants to prevent the agglomeration of particles that may adversely affect the perfor... | 11/16/2010 |
| 7811704 | Method of making zinc electrode including a fatty acid A composition, method of its preparation, and zinc electrodes comprising the composition as the active mass, for use in rechargeable electrochemical cells with enhanced cycle life is described. The electrode active mass comprises a source of electrochemically active... | 10/12/2010 |
| 7763385 | Zinc/air cell A zinc/air depolarized cell wherein the anode comprises zinc particles, aqueous alkaline electrolyte, and pyrophosphate based (P2O7)4− additive. The cell may be in the form of a button cell. The addition of a pyrophosphate containi... | 07/27/2010 |
| 7763384 | Alkaline cells having high capacity The present invention relates to a high capacity electrochemical cell including an anode, a cathode, and a separator disposed between the anode and cathode. The anode is configured to operate in combination with a quantity of an oxide of copper in the cathode. The c... | 07/27/2010 |
| 7718316 | Alkaline electrochemical cell with a blended zinc powder An electrochemical cell with a blended zinc powder is disclosed. The blended zinc powder includes selected portions of a first zinc powder and a second zinc powder. In a preferred embodiment, the first and second powders are divided into groups based on ranges in th... | 05/18/2010 |
| 7659031 | Size AA alkaline battery A size AA alkaline battery includes an anode principally composed of zinc functioning as an active material, a cathode principally composed of manganese dioxide or nickel oxyhydroxide functioning as an active material, a separator composed of a nonwoven fabric, an e... | 02/09/2010 |
| 7625672 | Zinc/air cell A zinc/air depolarized cell wherein the anode comprises zinc particles, aqueous alkaline electrolyte, and pyrophosphate based (P2O7)4− additive. The cell may be in the form of a button cell. The addition of a pyrophosphate containi... | 12/01/2009 |
| 7611803 | Electrochemical cell An alkaline electrochemical cell having an anode containing zinc and a cathode that includes a catalyst and an iodate is disclosed. The catalyst catalyzes the reduction of the iodate when the cell is discharged thereby enabling the cell to be used in devices that ha... | 11/03/2009 |
| 7582385 | Zinc air battery with acid electrolyte A zinc air battery, and preferably a secondary zinc air battery has an acid electrolyte in which the anionic form of an acid forms a complex with a zinc ion, and wherein the acid in the electrolyte reduces dendrite formation. ... | 09/01/2009 |
| 7579113 | Electrode having modal distribution of zinc-based particles An electrode containing zinc-based particles suspended in a fluid medium is disclosed. The zinc-based particles have a multi-modal distribution, such as a bi-modal distribution, of particle sizes, particle morphologies and/or particle compositions. The electrode can... | 08/25/2009 |
| 7563537 | Ionically conductive clay additive for use in electrochemical cells The present disclosure relates to alkaline electrochemical cells, such as metal-air cells, which comprise a gelled anode which may or may not include mercury, comprising an ionically conductive clay additive. The ionically conductive clay additive is modified to inc... | 07/21/2009 |
| 7556888 | Electrochemical cell A cylindrical alkaline electrochemical cell is disclosed that includes a gel free anode. The anode includes a free flowing zinc powder with a preassembly tap density between 1.6 g/cc and 2.9 g/cc. In one embodiment, zinc powder with the desired tap density may be ob... | 07/07/2009 |
| 7553586 | Alkaline battery An alkaline battery includes: a negative electrode including a zinc or zinc alloy powder as an active material; an alkaline electrolyte; and a positive electrode. The zinc or zinc alloy powder has a specific surface area of 0.01 to 10 m2/g, and the weight... | 06/30/2009 |
| 7524582 | Zinc powder or zinc alloy powder for alkaline batteries The invention is directed to a zinc powder or zinc alloy powder for alkaline batteries, which powder has a grain size distribution wherein 60 to 100 wt.-% of the particles, relative to the zinc powder or zinc alloy powder, have a diameter of from 40 to 140 μm. The ... | 04/28/2009 |
| 7476466 | Alkaline dry battery with a nickel oxyhydroxide and manganese oxide positive electrode including a calcium compound Provided is an alkaline dry battery allowing suppression of polarization in pulse discharge under heavy load to improve discharge characteristics, and having high reliability in safety in case of short circuit. In the positive electrode, a calcium compound having a ... | 01/13/2009 |
| 7438992 | Lithium-based active materials and preparation thereof The invention provides novel lithium-mixed metal materials which, upon electrochemical interaction, release lithium ions, and are capable of reversibly cycling lithium ions. The invention provides a rechargeable lithium battery which comprises an electrode formed fr... | 10/21/2008 |
| 7435395 | Alkaline cell with flat housing and nickel oxyhydroxide cathode An alkaline cell having a flat casing, preferably of cuboid shape. The cell can have an anode comprising zinc and a cathode comprising nickel oxyhydroxide. The casing can have a relatively small overall thickness, typically between about 5 and 10 mm, but may be larg... | 10/14/2008 |
| 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 |
| 7393612 | Electrodes, alkaline secondary battery, and method for manufacturing alkaline secondary battery An alkaline secondary battery which is characterized in that it comprises, a positive electrode containing nickel hydroxide having a value of 0.8° or more in the half-width of a peak in the (101) plane thereof as measured by X-ray powder diffraction (2θ) using Cuâ... | 07/01/2008 |
| 7378189 | Electrode material for lithium secondary battery, electrode structure employing electrode material, and lithium secondary battery having electrode structure The present invention provides: an electrode material for a lithium secondary battery containing lithium boron mixed oxide having a monoclinic LiBO2 structure and represented by a chemical formula LiB1-xDxO2-yE | 05/27/2008 |
| 7374840 | Centrifugally atomized zinc alloy powder for alkaline batteries This invention relates to centrifugal atomized zinc alloy powders for alkaline batteries consisting of (a) 0.005-2% by weight of indium, and 0.005-0.2% by weight of either one of Al and Bi, or (b) 0.005-2% by weight of indium, and 0.005-0.2% by weight of Bi, and 0.0... | 05/20/2008 |
| 7364819 | Alkaline electrochemical cell with a blended zinc powder An electrochemical cell with a blended zinc powder is disclosed. The blended zinc powder includes selected portions of a first zinc powder and a second zinc powder. In a preferred embodiment, the first and second powders are divided into groups based on ranges in th... | 04/29/2008 |
| 7351499 | Cathode material for battery The cathode of an alkaline battery can include an electrically conductive additive to increase the cathode efficiency. The additive can include a barium salt and an electrically conductive material. The electrically conductive material can be coated on a surface of ... | 04/01/2008 |
| 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 |
| 7341803 | Battery with increased electrode interfacial surface area and increased active materials An alkaline battery cell with improved high rate and high power discharge capacity is provided, without sacrificing capacity at low rate and low power, by adding at least a second anode or cathode, reducing the effective maximum electrode thicknesses, and increasing... | 03/11/2008 |
| 7332248 | Active material for positive electrode for non-aqueous electrolyte secondary battery and method of manufacturing the same A method of manufacturing a non-aqueous electrolyte secondary battery is provided wherein the positive electrode is made from a lithium-metal composite oxide represented by the general formula Lix(Ni1-y, Coy)1-zMz | 02/19/2008 |
| 7332247 | Electrode for an electrochemical cell and process for making the electrode A cell and a method for preparing an electrochemical cell having an electrode containing a mixture of agglomerated particles and nonagglomerated particles are disclosed. The process enables the incorporation of small particles of electrochemically active material, s... | 02/19/2008 |
| 7323031 | Zinc powder or zinc alloy powder with inhomogeneous bulk density for alkaline batteries The invention relates to zinc powders or zinc alloy powders with an inhomogeneous bulk density distribution depending on the particle size, wherein the difference of the bulk density measured according to ASTM B212 in the particle size range smaller than 75 μm and ... | 01/29/2008 |
| 7314492 | Method for manufacturing alkaline battery In a method in which the inside surface of the negative electrode cup of an alkaline battery is coated with metal or metal alloy having a higher hydrogen overpotential than copper, the mask used for coating processing has the shape in which: when d is the diameter o... | 01/01/2008 |
| 7314681 | Cylindrical alkaline cells with increased discharge performance An alkaline battery cell with increased discharge capacity is provided. Both the internal volume and the electrode interfacial surface area are increased, without unnecessarily increasing the overall cell volume, by increasing the height but not the diameter of the ... | 01/01/2008 |
| 7314684 | Layer cathode methods of manufacturing and materials for Li-ion rechargeable batteries A positive electrode active material for lithium-ion rechargeable batteries of general formula Li1+xNiαMnβAγO2 and further wherein A is Mg, Zn, Al, Co, Ga, B, Zr, or Ti and 0 | 01/01/2008 |
| 7311997 | Rechargeable batteries based on nonconjugated conductive polymers Rechargeable batteries have been fabricated using doped nonconjugated conductive polymers as the cathode and various metals such as aluminum, copper and zinc as the anode. A nonconjugated conductive polymer is a polymer with at least one double bond in the repeat wi... | 12/25/2007 |
