Did You Know...
...During the Civil War, the Confederacy established its own Patent Office which issued 266 patents, a third of which concerned implements of war.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 6911282 | Non-aqueous electrolyte secondary battery When the composite particle containing Si or Sn is used for the negative electrode, the ratio of the median diameter “Dc” of the conductive material to the median diameter “Da” of the negative electrode material (Dc/Da) is made from 0.02 to 0.5 in order to i... | 06/28/2005 |
| 6911280 | Chemical protection of a lithium surface Disclosed are compositions and methods for alleviating the problem of reaction of lithium or other alkali or alkaline earth metals with incompatible processing and operating environments by creating a ionically conductive chemical protective layer on the lithium or ... | 06/28/2005 |
| 6908711 | Rechargeable high power electrochemical device The present invention is drawn to a high power electrochemical energy storage device, comprising at least one stackable, monolithic battery unit. The monolithic battery unit includes at least two electrochemical energy storage cells. The cells have a lithium ion ins... | 06/21/2005 |
| 6908712 | Lithium secondary cell To improve an impregnation property of an electrolyte and the cycle characteristics, which have been a problem in the case of employing a casing having a variable shape. A lithium secondary cell comprising a casing having a variable shape, and a cell element having ... | 06/21/2005 |
| 6908710 | Lithiated molybdenum oxide active materials The invention provides lithiated molybdenum oxides useful as cathode (positive electrode) active materials in rechargeable batteries, especially in lithium ion rechargeable batteries. In one aspect, the invention provides lithiated molybdenum oxides, some of which c... | 06/21/2005 |
| 6908706 | Cathode electrode, manufacturing method thereof and lithium sulfur battery using the same Provided is a cathode electrode including a current collector, and a cathode electrode active material layer laminated on the current collector, a method of making the cathode electrode, and a battery including the cathode electrode. The cathode electrode active mat... | 06/21/2005 |
| 6908708 | Method of preparing layered lithium-chromium-manganese oxides for lithium batteries A method of preparing layered lithium-chromium-manganese oxides having the formula Li[CrxLi(1/3−x/3) Mn(2/3−2x/3)]O2 where 0.1≦X≦0.5 for lithium batteries. Homogeneous precipitation is prepared by adding lithium hy... | 06/21/2005 |
| 6906436 | Solid state activity-activated battery device and method A system includes a thin-film battery and an activity-activated switch. The system is placed on a substrate with an adhesive backing. In some embodiments, the substrate is flexible. Also formed on the substrate is an electrical circuit that includes electronics. The... | 06/14/2005 |
| 6902848 | Lithium battery including a gel electrolyte A lithium battery excellent in initial capacity, high rate discharge performance, low temperature performance and cycle life performance can be provided without the necessity of any special production step. In other words, the present invention lies in a lith... | 06/07/2005 |
| 6902845 | Alkaline rechargeable battery and process for the production thereof A rechargeable battery having an anode comprising a powdery composite material said powdery composite material comprising a plurality of powdery composites having a structure comprising a core whose surface is covered by a coat layer, said core comprising an alloy p... | 06/07/2005 |
| 6902745 | Method of manufacturing nano-sized lithium-cobalt oxides by flame spraying pyrolysis A method for producing nano-sized lithium-cobalt oxide is provided by using flame-spray pyrolysis. The method comprises the steps of: spraying minute droplets, which is a solution dissolved lithium salt with cobalt salt at room temperature; atomizing the minute drop... | 06/07/2005 |
| 6899976 | Feed through assembly for a formable flat battery A body implantable medical device (IMD) includes a first shell and a second shell whose outer surfaces are biocompatible. The IMD further includes a battery enclosure defined by all or a portion of the first shell of the IMD housing and a cover. The cover of the bat... | 05/31/2005 |
| 6896706 | Carbonaceous materials coated with a metal or metal oxide, a preparation method thereof, and a composite electrode and lithium secondary battery comprising the same A carbon anode active material for lithium secondary battery comprising a cluster or thin film layer of a metal or metal oxide coated onto the surface of the carbon active material, a preparation method thereof, and a metal-carbon hybrid electrode and a lithium seco... | 05/24/2005 |
| 6893772 | Current collector for lithium electrode An electrochemical cell and corresponding electrode assembly are described in which an alkali metal anode and a cathode assembly are wound together in a unidirectional winding having substantially straight sides such that the winding will fit into a prismatic cell. ... | 05/17/2005 |
| 6890686 | Lithium-containing phosphate active materials The invention provides novel lithium-containing phosphate materials having a high proportion of lithium per formula unit of the material. Upon electrochemical interaction, such material deintercalates lithium ions, and is capable of reversibly cycling lithium ions. ... | 05/10/2005 |
| 6890685 | Anode for secondary battery and secondary battery therewith This invention relates to an anode for a secondary battery capable of occluding and releasing lithium ions, the anode having a multi-layer structure comprising: a first layer containing carbon as a main component; and a second layer as a main component containing a ... | 05/10/2005 |
| 6887622 | Carbonaceous active material for lithium secondary battery Disclosed is carbonaceous active material for a lithium-ion secondary battery. Conducting a differential thermal analysis on the carbonaceous active material results in the displaying of at least two exothermic peaks overlapping to form shoulders. ... | 05/03/2005 |
| 6887511 | Method for preparing electrode material for lithium battery A method for preparing an electrode material for a lithium battery, characterized in that a noncrystalline silicon thin film that serves as an active material is deposited on a substrate. ... | 05/03/2005 |
| 6884544 | Lithium-based active materials and preparation thereof The invention provides novel active material represented by the general formula LiaMI1-yMIIyPO4, wherein MI is selected from the group consisting of Fe, Ni, Mn, V, Sn, Ti, Cr, and mixtures thereof; MII is selected from the... | 04/26/2005 |
| 6884548 | Nonaqueous electrolyte battery containing an alkali, transition metal negative electrode It is intended to provide a nonaqueous electrolyte battery that satisfies both of a large discharge capacity and a superior cycle life characteristic by developing a novel negative electrode material. A nonaqueous electrolyte battery uses a negative electrode active... | 04/26/2005 |
| 6884547 | Lithium polymer battery A lithium polymer battery includes a cathode, an anode and a porous separator disposed between the cathode and the anode. A first polymeric electrolyte is positioned on a first surface of the separator in contact with the cathode. A second polymeric electrolyte is p... | 04/26/2005 |
| 6884546 | Secondary battery Provided is a secondary battery in which high energy density can be obtained and charging/discharging cycle characteristic can be improved. A positive electrode (13) and a negative electrode (15) are stacked with a separator (16) interposed ther... | 04/26/2005 |
| 6881518 | Process for manufacture of negative electrode material for a non-aqueous electrolyte secondary battery A negative electrode material for a nonaqueous electrolyte secondary battery having a high discharge capacity and a good cycle life is made from alloy particles having an average particle diameter of 0.1-50 μm and including Si phase grains 40 and a phase of ... | 04/19/2005 |
| 6881514 | Stacked electrochemical cell An electrochemical element with improved energy density is provided. The electrochemical element has electrochemical cells which are multiply stacked. The electrochemical cell is stacked with the full cell or bicell as a basic unit and a separator film is interposed... | 04/19/2005 |
| 6878487 | Active material for battery and method of preparing same An active material for a battery is provided with a coating layer based on a conductive agent, or a coating layer based on a mixture of a conductive agent, and a conductive polymeric dispersant. ... | 04/12/2005 |
| 6878489 | Lithium cell with improved cathode A primary lithium cell having an anode comprising lithium and a cathode comprising electrochemically active material selected from silver copper oxides having the formula AgCuO2 or Ag2Cu2O3 or mixtures thereof. The cathode... | 04/12/2005 |
| 6878492 | Polymerizable composition and use thereof The present invention provides a solid polymer electrolyte; a polymerizable composition having low viscosity and excellent processability for obtaining the solid polymer electrolyte; and a polymerizable compound having low viscosity, and good polymerizability and st... | 04/12/2005 |
| 6872492 | Sodium ion batteries Sodium ion batteries are based on sodium based active materials selected among compounds of the general formula: AaMb(XY4)cZd, wherein A comprises sodium, M comprises one or more metals, comp... | 03/29/2005 |
| 6869546 | Carbon materials, electrodes and nonaqueous electrolyte secondary cells For us in nonaqueous electrolyte secondary cells, the invention provides an electrode which comprises a first carbon material serving as a core material, and a second carbon material coating the first carbon material over the surface thereof and containing boron. Wh... | 03/22/2005 |
| 6855461 | Cathode material for lithium rechargeable batteries A crystal which can be employed as the active material of a lithium-based battery has an empirical formula of Lix1A2Ni1-y-zCoyBzOa, wherein “x1” is greater than about 0.1 and equal to or less than... | 02/15/2005 |
| 6855460 | Negative electrodes for lithium cells and batteries A negative electrode is disclosed for a non-aqueous electrochemical cell. The electrode has an intermetallic compound as its basic structural unit with the formula M2M′ in which M and M′ are selected from two or more metal elements including Si, and t... | 02/15/2005 |
| 6852450 | Electrolyte for a lithium-sulfur battery and a lithium-sulfur battery using the same An electrolyte for a lithium-sulfur battery that includes a first component solvent with a sulfur solubility greater than or equal to 20 mM, a second component solvent with a sulfur solubility less than 20 mM, a third component solvent with a high dielectric constan... | 02/08/2005 |
| 6852446 | Non-aqueous electrolytes for lithium electrochemical cells A non-aqueous electric current producing electrochemical cell is provided comprising an anode and a cathode, an ionically permeable separator interposed between the anode and the cathode, and a non-aqueous electrolyte, the electrolyte comprising an ionically conduct... | 02/08/2005 |
| 6849360 | Nonaqueous electrochemical cell with improved energy density This invention relates to a nonaqueous cell comprising a lithium metallic foil anode and a cathode coating comprising iron disulfide as the active material wherein the coating is applied to at least one surface of a metallic substrate that functions as the cathode c... | 02/01/2005 |
| 6846593 | Negative electrode for non-aqueous electrolyte secondary battery and battery employing the same 100 parts by weight of a carbon material having irreversible capacity and 20 to 150 parts by weight of a lithium-containing complex nitride represented by the general formula Li3-XMXN wherein M is at least one selected from the group consisting... | 01/25/2005 |
| 6846594 | Lithium secondary battery Disclosed is a lithium secondary battery comprising a positive electrode including a material that is capable of reversible intercalation/deintercalation of lithium ions as a positive active material; a negative electrode including a material that is capable of reve... | 01/25/2005 |
| 6846592 | Positive electrode for rechargeable lithium batteries and method of the same A positive electrode for a rechargeable lithium battery of preparing the same. The positive electrode includes a current collector, a positive active material layer coated on the current collector, and a surface-treatment layer. The positive active material layer in... | 01/25/2005 |
| 6844115 | Highly conductive and stable nonaqueous electrolyte for lithium electrochemical cells The present invention is directed to at least partially replacing PC and/or DME with a linear carbonate, preferably dimethyl carbonate, and a linear mono-ether, the most preferred being diisopropyl ether, in electrolytes useful for activating alkali metal-containing... | 01/18/2005 |
| 6844113 | Electrode for lithium secondary battery and method for producing the same The electrode for a lithium secondary battery includes: a current collector; an interlayer containing Mo or W provided on the current collector; and a thin film composed of active material capable of lithium storage and release deposited on the interlayer. ... | 01/18/2005 |
| 6835500 | Hydrated iron phosphate electrode materials for rechargeable lithium battery cell systems The electrochemical performance of rechargeable lithium battery cells comprising crystalline or amorphous FeIII iron phosphate active positive electrode compounds is improved by compound hydration and intimate ball-milled incorporation of electrically con... | 12/28/2004 |
