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| Number | Title | Issue Date |
| 8153304 | Method of using cyclic pressure to increase the pressed density of electrodes for use in electrochemical cells The traditional method of building a CFx/current collector/SVO assembly is by the application of a static pressing force. However, the density of the electrode and, particularly the CFx component, can be increase by using a cyclic pressing prot... | 04/10/2012 |
| 7824805 | Implantable medical device battery A battery cell in an implantable medical device is presented. The battery cell includes an anode, a cathode, an insulator therebetween, and an electrolyte. The cathode includes silver vanadium oxide and fluorinated carbon (CFx). The CFx includes fluorine at greater ... | 11/02/2010 |
| 7794880 | Fluorination of multi-layered carbon nanomaterials The invention provides fluorinated multi-layered carbon nanomaterials and methods for their production. In one aspect of the invention, the carbon nanomaterials are partially fluorinated and retain some unreacted carbon. The invention also provides electrodes and el... | 09/14/2010 |
| 7389580 | Method and apparatus for thin-film battery having ultra-thin electrolyte A method and system for fabricating solid-state energy-storage devices including fabrication films for devices without an anneal step. A film of an energy-storage device is fabricated by depositing a first material layer to a location on a substrate. Energy is suppl... | 06/24/2008 |
| 7358010 | Fluorinated carbon for metal/fluorinated carbon batteries A novel cathode composition for use in a metal/fluorinated carbon battery is produced by mixing fluorinated carbons made from anisotropic and isotropic carbon, where the anisotropic carbon is carbon fiber and the isotropic carbon is graphite. This cathode compositio... | 04/15/2008 |
| 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 |
| 7294435 | Positive electrode active material for nonaqueous electrolyte secondary battery, positive electrode mixture for nonaqueous electrolyte secondary battery, and nonaqueous electrolyte secondary battery Disclosed is a positive electrode active material for a nonaqueous electrolyte secondary battery containing at least a lithium-transition metal composite oxide of a spinel structure, in which at least one kind of element which may become tetravalent exists on at lea... | 11/13/2007 |
| 7247405 | Nonaqueous electrolyte battery A nonaqueous electrolyte battery which comprises a positive electrode including carbon fluoride or sulfur as an active material, a negative electrode including calcium as an active material, and an electrolyte including an imide salt of calcium or a sulfonic acid sa... | 07/24/2007 |
| 7144655 | Thin-film battery having ultra-thin electrolyte A method and system for fabricating solid-state energy-storage devices including fabrication films for devices without an anneal step. A film of an energy-storage device is fabricated by depositing a first material layer to a location on a substrate. Energy is suppl... | 12/05/2006 |
| 7074688 | Method of making an electrode for an electrochemical capacitor and the method of making an electrochemical capacitor The present invention provides a method of making an electrochemical capacitor electrode comprising a collector and an electronically conductive porous layer formed on the collector while keeping an electric contact therewith. The porous layer contains at least a po... | 07/11/2006 |
| 7068036 | Lithium/carbon monofluoride (Li/CF) electrochemical cell projection model A model for estimating the discharge profile of a Li/CFx cell is described. The model uses as inputs the load at which the cell is subjected to and the planar surface area to estimate current density. Then, current density is used to estimate cell voltage... | 06/27/2006 |
| 7062390 | Method for evaluating capacity of secondary battery using mathematical calculation of specific resistance components of equivalent circuit model fitted from impedance spectrum The present invention relates to a method for evaluating an initial capacity of secondary batteries and, more specifically, to a method for evaluating an initial capacity of secondary batteries that involves mathematical operation of specific internal resistance com... | 06/13/2006 |
| 7056358 | Method for using high rate lithium electrochemical cell containing SVO/CFchi/SVo sandwich cathodes having γ-SVO and mixture of γ-SVO/ε-SVO A method for powering an implantable medical device with a lithium electrochemical cell having a sandwich cathode electrode of SVO/CFx/SVO active materials is described. A preferred cathode is of a γ-SVO/CFx/γ-SVO or (γ+ε)-SVO/CFx | 06/06/2006 |
| 7052802 | Fluorinated carbon active material Disclosed is an improved type of fluorinated carbon (CFx) for use in electrical storage devices such as batteries and capacitors. The CFx is coated with a conductive material such as gold or carbon using vapor deposition. The resulting material... | 05/30/2006 |
| 6949312 | ELECTRODE MATERIAL FOR ANODE OF RECHARGEABLE LITHIUM BATTERY, ELECTRODE STRUCTURAL BODY USING SAID ELECTRODE MATERIAL, RECHARGEABLE LITHIUM BATTERY USING SAID ELECTRODE STRUCTURAL BODY, PROCESS FOR PRODUCING SAID ELECTRODE STRUCTURAL BODY, AND PROCESS FOR PRODUCING SAID RECHARGEABLE LITHIUM BATTERY An electrode material for an anode of a rechargeable lithium battery, containing a particulate comprising an amorphous Sn.A.X alloy with a substantially non-stoichiometric ratio composition. For said formula Sn.A.X, A indicates at least one kind of an element select... | 09/27/2005 |
| 6926991 | SVO/CFx parallel cell design within the same casing A new cathode design has a first cathode active material of a relatively low energy density but of a relatively high rate capability contacted to a first cathode current collector and a second cathode active material having a relatively high energy density but of a ... | 08/09/2005 |
| 6783888 | Control of cell swelling by the proper choice of carbon monofluoride (CFx) cathode materials in high rate defibrillator cells The minimization or elimination of swelling in lithium cells containing CFx as part of the cathode electrode and discharged under high rate applications is described. When CFx materials are synthesized from fibrous carbonaceous materials, in co... | 08/31/2004 |
| 6767670 | Carbon-coated titanium current collectors for use in alkali metal electrochemical cells An alkali metal/solid cathode electrochemical cell, such as of a Li/SVO couple, having the cathode material supported on a titanium current collector screen coated with a carbonaceous material is described. The thusly-coated titanium current collector provides the c... | 07/27/2004 |
| 6743547 | Pellet process for double current collector screen cathode preparation An electrode having the configuration: first active material/current collector/second active material is described. One of the electrode active materials in a cohesive form of active particles being firmly held together as part of the same mass is incapable of movin... | 06/01/2004 |
| 6737191 | Double current collector negative electrode design for alkali metal ion electrochemical cells A new sandwich negative electrode design for a secondary cell is provided comprising a “sacrificial” alkali metal along with a carbonaceous anode material. In the case of a hard carbon anode material, the sacrificial alkali metal is preferably lithium and is siz... | 05/18/2004 |
| 6733926 | Electrochemical cell having a physical vapor deposited electrode and method of manufacture An electrode component for an electrochemical cell or a capacitor is described wherein the electrode is produced by physical vapor depositing an electrode active material onto a substrate to coat the substrate. The thusly produced electrode is useful as a cathode in... | 05/11/2004 |
| 6727022 | Powder process for double current collector screen cathode preparation The present comprises an electrode having the configuration: first active material/current collector screen/second active material. When one of the active materials is in a powder form, it is possible for that material to move through openings in the current collect... | 04/27/2004 |
| 6713214 | Positive electrode active material for secondary battery and secondary battery A secondary battery is characterized by using an organic material including carbon having a conjugate electron cloud and coupled with an electron attractive group; or a material obtained by baking a fluorocarbon polymer or graphite fluoride in an inert atmosphere at... | 03/30/2004 |
| 6692871 | Double current collector cathode design for alkali metal electrochemical cells having short circuit safety characteristics A new sandwich cathode design having a first cathode active material of a relatively low energy density but of a relatively high rate capability sandwiched between two current collectors and with a second cathode active material having a relatively high e... | 02/17/2004 |
| 6692865 | Double current collector cathode design using mixtures of two active materials for alkali metal or ion electrochemical cells A new sandwich cathode design is provided having a first cathode structure of a first cathode active material of a relatively low energy density but of a relatively high rate capability, for example SVO, mixed with a second cathode active material having ... | 02/17/2004 |
| 6673493 | Double current collector cathode design using the same active material in varying formulations for alkali metal or ion electrochemical cells A new sandwich cathode design is provided comprising a cathode active material mixed with a binder and a conductive diluent in at least two differing formulations. The formulations are then individually pressed on opposite sides of a current collector, so... | 01/06/2004 |
| 6673487 | Double current collector cathode design using the same active material in varying thicknesses for alkali metal or ION electrochemical cells A new sandwich cathode design is provided comprising a cathode active material provided in at least two different thicknesses. The different thickness cathode structures are then individually pressed on opposite sides of a current collector so that both a... | 01/06/2004 |
| 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 |
| 6645670 | Efficient cell stack for cells with double current collectors sandwich cathodes The present invention improves the performance of lithium electrochemical cells by providing a new electrode assembly based on a sandwich cathode design, but termed a double screen sandwich cathode electrode design. In particular, the present invention us... | 11/11/2003 |
| 6627337 | Conversion of low rate energy into high rate energy by parallel discharging An electrode configuration for use in a defibrillator battery to improve the battery capacity and its utilization efficiency by using a combination SVO cell and a CFx cell discharged in parallel, is described. In other words, the anode of the S... | 09/30/2003 |
| 6607861 | Application of γ-SVO and mixture of γ-SVO/&3xb5;-SVO in high rate electrochemical lithium cells containing SVO/CFx/SVO sandwich cathodes Lithium electrochemical cells having a sandwich cathode electrode of SVO/CFx /SVO active materials are described. Such a design improves the service life of defibrillator electrochemical cells. A preferred formulation uses γ-SVO/CFx... | 08/19/2003 |
| 6605386 | Non-aqueous electrolyte secondary battery comprising composite particles A non-aqueous electrolyte secondary battery comprises a positive electrode and a negative electrode capable of intercalating and de-intercalating lithium, a non-aqueous electrolyte and separators or solid electrolytes. The negative electrode contains, as ... | 08/12/2003 |
| 6551747 | Sandwich cathode design for alkali metal electrochemical cell with high discharge rate capability A new sandwich cathode design having a second cathode active material of a relatively high energy density but of a relatively low rate capability sandwiched between two current collectors and with a first cathode active material having a relatively low en... | 04/22/2003 |
| 6479426 | Negative active material for lithium secondary battery Disclosed is a negative active material for a lithium secondary battery. The negative active material includes graphitized coke having a graphitization catalyst element and non-flat artificial graphite. The negative active material for a lithium secondary... | 11/12/2002 |
| 6451483 | Enhanced capacity Li/CFx electrochemical cell An alkali metal/solid cathode electrochemical cell, particularly a Li/CFx cell, having an electrolyte-to-cathode (E/C) weight ratio of about 0.938 to about 0.73, and an anode-to-cathode (A/C) capacity ratio of about 1.03, is described. This pro... | 09/17/2002 |
| 6358649 | Carbons containing fluorine, method of preparation thereof and use as electrode material The invention relates to new carbons containing fluorine. The carbons containing fluorine are obtained from a graphite or a mosaic textured graphitisable compound containing carbon. As a first step, the graphite or the carbon-containing compound is reacte... | 03/19/2002 |
| 6280697 | Nanotube-based high energy material and method A carbon-based material containing an allotrope of carbon, such as single-walled carbon nanotubes, is capable of accepting and intercalated alkali metal. The material exhibits a reversible capacity ranging from approximately 650 mAh/g-1,000 mAh/g. The hig... | 08/28/2001 |
| 6218055 | Electrochemical power cells and method of improving electrochemical power cell performance A small, portable electrochemical power cell, having an output voltage of over 4 V, and preferably over 5 V, includes an anode, a cathode having a fluorine compound and an electrolyte having an organic sulfur-containing compound to maintain ionic conducti... | 04/17/2001 |
| 6180284 | Electrochemical power cells and method of improving electrochemical power cell performance A small, portable electrochemical power cell, having an output voltage of over 4 V, and preferably over 5 V, includes an anode, a cathode comprising a fluorine compound and an electrolyte to maintain ionic conductivity between the anode and the cathode. A... | 01/30/2001 |
| 6171724 | Battery electrodes, batteries, and methods of forming batteries and battery electrodes The invention encompasses batteries, battery electrodes and methods of forming batteries and battery electrodes. In one aspect, the invention includes a method of forming a battery electrode comprising: a) forming an electrode material mixture, the electr... | 01/09/2001 |
