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| Number | Title | Issue Date |
| 8124261 | Process for recycling components of a PEM fuel cell membrane electrode assembly The membrane electrode assembly (MEA) of a PEM fuel cell can be recycled by contacting the MEA with a lower alkyl alcohol solvent which separates the membrane from the anode and cathode layers of the assembly. The resulting solution containing both the polymer membr... | 02/28/2012 |
| 8067107 | System and method for processing an end-of-life or reduced performance energy storage and/or conversion device using a supercritical fluid A method of refurbishing a lithium-containing energy storage and/or conversion device is disclosed, wherein the energy storage and/or conversion device includes electrodes and an electrolyte, and wherein the method includes substantially removing the electrolyte fro... | 11/29/2011 |
| 7964299 | Method of recycling a battery A method of the present invention is directed to recycling a battery that includes a plurality of lithium cells removable from one another. The battery is tested to measure internal resistance of the lithium cells to determine if the lithium cells present a predeter... | 06/21/2011 |
| 7875395 | Nonaqueous electrolytic cell and its manufacturing method A nonaqueous electrolytic cell manufacturing method is characterized in that a nonaqueous electrolyte containing vinylene carbonate is used, a coating on the surface of the negative electrode is formed at the initial charging/discharging in such a way by lowering th... | 01/25/2011 |
| 7858216 | System and method for removing an electrolyte from an energy storage and/or conversion device using a supercritical fluid A method of recycling a lithium-containing energy storage device including an electrolyte is provided. The method includes placing the storage device in an extraction vessel, sealing the extraction vessel, adding a fluid containing CO2 as a primary compon... | 12/28/2010 |
| 7833646 | Method of and apparatus for dismantling and storage of objects comprising alkali metals, such as alkali metal containing batteries There is disclosed a method of and an arrangement for dismantling and storage of objects comprising alkali metal containing substances, in particular lithium containing batteries, in the presence of a protective atmosphere, wherein the protective atmosphere is carbo... | 11/16/2010 |
| 7820317 | Method for the mixed recycling of lithium-based anode batteries and cells The invention relates to a method for treating all types of lithium anode cells and batteries by means of a hydrometallurgical process at room temperature. The treatment method enables cells and batteries comprising a metallic lithium-based anode or an anode contain... | 10/26/2010 |
| 7785729 | Battery pack and battery pack producing method A battery pack capable of sufficiently exhibiting performance of each secondary battery constituting the battery pack and its producing method are provided. The battery pack producing method of the invention comprises an obtaining process for obtaining a charge amou... | 08/31/2010 |
| 7754371 | Fuel cell disassembly method Respective heaters 21 through 24 receive power supply and start heating. The heaters 21 through 24 keep heating sealing layers 8 to or over a softening temperature at which the sealing layers 8 are softened or molten. After ... | 07/13/2010 |
| 7718305 | Rechargeable alkaline manganese cell with cathode consistency compensation In an improved rechargeable alkaline manganese cell that has a manganese dioxide cathode comprising pellets formed by pressing a cathode powder blend comprising a hygroscopic additive for increasing cumulative capacity, the sticky consistency of the pellets, which i... | 05/18/2010 |
| 7592094 | Device, system and method for improving efficiency and preventing degradation of energy storage devices Disclosed herein is a method and related device for improving energy performance and substantially preventing degradation of a chemical-to-electrical energy conversion process of an energy storage device (10), comprising the steps of: mechanically exciting ch... | 09/22/2009 |
| 7507496 | Process for recovering lead oxides from exhausted batteries A process for recovering lead oxides from the spent paste of exhausted lead acid batteries. The process provides heating the spent paste with an alkali hydroxide solution at elevated temperatures prior to calcinations. Calcination is at various temperatures so that ... | 03/24/2009 |
| 7374839 | Method and apparatus for dissolving crystals A method is described for a dissolving crystals formed in a side reaction to an oxidation-reduction reaction. A low frequency substantially square wave signal less than 10 kilohertz is applied across the battery terminals to dissolve unwanted crystals. ... | 05/20/2008 |
| 7342770 | Recyclable dry particle based adhesive electrode and methods of making same A dry process based capacitor and method for using one or more recyclable electrode film structure is disclosed. ... | 03/11/2008 |
| 7323272 | Battery enclosure for electric and hybrid electric vehicles optimized for air-cooling An air-cooled battery enclosure includes a battery tray frame having a floor section including a plurality of outer slats joined to a lower floor frame. A plurality of corner posts extend upward from the lower floor frame. An array of a plurality of criss-crossed in... | 01/29/2008 |
| 7316792 | Electrode material for rechargeable lithium battery and electrode structural body comprising said electrode material An electrode material for a rechargeable lithium battery, characterized in that said electrode material comprises a fine powder of a silicon-based material whose principal component is silicon element, said fine powder having an average particle size (R) in a range ... | 01/08/2008 |
| 7294428 | Method for reusing current collectors/distributors of solid polymer electrolyte fuel cell stacks The method for reusing current collectors/distributors is employed in an electrochemical generator (1, 20) comprising a multiplicity of elementary cells (2, 21) assembled in a filter-press configuration and comprising an array of conductive sheets (... | 11/13/2007 |
| 7263449 | Method for determining poor performing cells A means for determining long-term discharge performance, particularly in a lithium/silver vanadium oxide cell, by analyzing and characterizing the initial pulse voltage waveform, is described. The relationship between the initial P1 (Pmin) voltage drop an... | 08/28/2007 |
| 7255798 | Recycling of used perfluorosulfonic acid membranes A method for recovering and recycling catalyst coated fuel cell membranes includes dissolving the used membranes in water and solvent, heating the dissolved membranes under pressure and separating the components. Active membranes are produced from the recycled mater... | 08/14/2007 |
| 7248920 | Apparatus and method for exercising a battery for an implantable medical device A method and apparatus exercise a battery of an implantable medical device by determining whether a film is disposed on a portion of an electrode of a battery, discharging the battery a sufficient amount to reduce the film, and optimizing energy used during exercisi... | 07/24/2007 |
| 7238448 | Cathode for air assisted battery A cathode for an air recovery alkaline battery is disclosed. The cathode contains at least about 60% by weight MnO2 and at least about 2% by weight of a hydrophobic polymer; the MnO2 consists essentially of electrochemically synthesized MnO | 07/03/2007 |
| 7235326 | Method and device for judging the condition of secondary batteries and method for regenerating secondary batteries The reducing treatment of the negative electrode of which the battery capacity decreases slightly and the internal resistance increases slightly, does not affect the battery performance. Accordingly, by merely supplementing the electrolyte, the battery performance c... | 06/26/2007 |
| 7231874 | Power supplies for projectiles and other devices A method for generating power in a device is provided. The method includes: generating power from an inherent characteristic of the device; and supplying the generated power to at least one power consuming element associated with the device. Preferably, the inherent... | 06/19/2007 |
| 7214443 | Secondary battery with autolytic dendrites A battery (100) comprises a cell having a cathode compartment (120) that includes an element that is oxidized during charging of the battery (100), wherein the oxidized element forms a salt with an acid and thereby increases the H+ concentration... | 05/08/2007 |
| 7198865 | System and method for removing an electrolyte from an energy storage and/or conversion device using a supercritical fluid A system and method of removing an electrolyte from energy storage and conversion devices using a supercritical fluid are provided. The method includes placing a selected device in a container, adding a fluid to the container, adjusting at least one of a temperature... | 04/03/2007 |
| 7192564 | Method for recycling spent lithium metal polymer rechargeable batteries and related materials The method relates to a pyrometallurgical and hydrometallurgical process for the recovery and recycling of lithium and vanadium compounds from a material comprising spent rechargeable lithium batteries, particularly lithium metal gel and solid polymer electrolyte re... | 03/20/2007 |
| 7180298 | Method and device for judging the condition of secondary batteries and method for regenerating secondary batteries By measuring the average thickness of the oxide layer, regardless of the specification of the battery, the level of the degradation of the negative electrode can be accurately determined. With the present regenerating method, the reducing agent is prevented from bei... | 02/20/2007 |
| 7166203 | Controlled concentration electrolysis system A system for maintaining a concentration range of an electroreducible metal species undergoing electrolysis within a predetermined concentration range comprises a first container containing a body of an electrolyte solution in which a metal is partially dissolved, a... | 01/23/2007 |
| 7147972 | Method and apparatus for achieving prolonged battery life A composition for prolonging battery life by reducing water loss and the degradation of properties due to dendritic precipitation, is refreshingly added to a battery electrolyte. By the refreshment of the composition, battery cycle life is substantially increased wh... | 12/12/2006 |
| 7141187 | Electrode material for rechargeable lithium battery, electrode structural body comprising said electrode material, rechargeable lithium battery having said electrode structural body, process for the production of said electrode structural body, and process for the production of said rechargeable lithium battery An electrode material for a rechargeable lithium battery, characterized in that said electrode material comprises a fine powder of a silicon-based material whose principal component is silicon element, said fine powder having an average particle size (R) in a range ... | 11/28/2006 |
| 7124771 | Spill containment system and method A spill containment system and method that contain leaks and spills from devices including but not limited to batteries. The system neutralizes and absorbs leaks and spills to prevent the leaks and spills from spreading. The system not only detects leaks, but also i... | 10/24/2006 |
| 7091899 | Remote control transmitter Hook portion is formed on sheet an electric discharge preventing sheet put between battery and electrode. Hook portion which is deformable with a prescribed force comes into contact with holder 6 retaining electric discharge preventing sheet. Therewith, a rem... | 08/15/2006 |
| 7078122 | High efficiency process for treating mixed metal waste A process for rendering hazardous materials present in multi-element waste non-hazardous, and for recovering valuable components of said waste, particularly metals, comprising contacting the waste with an aqueous solution of HX, wherein X is halogen, thereby convert... | 07/18/2006 |
| 7057398 | Microwave spectrometer An improved microwave spectrometer for measuring the concentration of ethylene oxide gas and the concentration of water vapor in one or more gas samples taken from an ethylene oxide sterilization chamber. ... | 06/06/2006 |
| 7031153 | Disk module, and disk array apparatus A disk module with a disk for recording information and a controller for controlling operation of the disk in a cabinet, is formed by providing a heat radiation member on at least one of two side faces of the cabinet. The disk array apparatus includes a plurality of... | 04/18/2006 |
| 7008719 | Battery leakage containment system A leakage containment system for storage batteries supported on a rack. Plural, generally rectangular pans are interconnected to each other and are each provided with at least one end wall having a recessed portion so that excess liquid in one pan may spillover into... | 03/07/2006 |
| 6942105 | In-line filtration for a particle-based electrochemical power system A system for filtering particles within a multiphase fluid that comprises a particulate phase is disclosed. The system comprises a first plurality of substantially parallel, substantially planar thin slabs separated by a predetermined distance to retain particles ha... | 09/13/2005 |
| 6944010 | Charge storage device A charge storage device (1) includes a sealed prismatic housing (2). Two opposed folded rectangular aluminium electrodes (3, 4) are disposed within housing (2) and connected to respective metal terminals (5, 6) for allowing externa... | 09/13/2005 |
| 6936371 | Method for recycling battery pack A method for recycling a battery pack is provided that enables a degraded battery pack to be replaced at a low cost while maintaining the advantages of a conventional sealed-type nickel-metal hydride secondary battery as being free from maintenance or leak of an ele... | 08/30/2005 |
| 6911274 | Fuel cell system A fuel cell system is described which comprises a power source and a fuel storage unit. A flowable fuel is contained with the fuel storage unit. A first flow path delivers fuel from the fuel storage unit to the power source. Some or all of this fuel is deposited int... | 06/28/2005 |
