Did You Know...
...that when IBM conducted a market study of Chester Carlson's invention in 1959, the company concluded that it would take only 5000 units of his new product to saturate the market? IBM therefore declined to be part of the new product introduction. Too bad for IBM. Carlson's invention was the xerography process, and his new product was the beginning of the Xerox Corporation. It is estimated that every day, worldwide, 3,000,000,000 copies are made!!
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| Number | Title | Issue Date |
| 8163198 | Process for producing lithium-containing composite oxide for positive electrode of lithium secondary battery A process for producing a lithium-containing composite oxide having a large volume capacity density, high safety, excellent durability for charge/discharge cycles, and excellent low temperature characteristics. An oxide of general formula LipNx... | 04/24/2012 |
| 8133637 | Fuel cells and fuel cell catalysts incorporating a nanoring support The fuel cells include electrode membrane assemblies having a nanoparticle catalyst supported on carbon nanorings. The carbon nanorings are formed from one or more carbon layers that form a wall that defines a generally annular nanostructure having a hole. The lengt... | 03/13/2012 |
| 8128836 | Electrolyte membrane and method of selecting the same The present invention is to provide an electrolyte membrane which retains durability even after having undergone a dimensional change accompanying chemical deterioration caused owing to radicals having high oxidizing ability such as hydroxyl radicals (.OH) or peroxi... | 03/06/2012 |
| 8114309 | Lithium-manganese composite oxides for lithium ion battery and process for preparing same A lithium-manganese composite oxide for a lithium ion battery having a good cycle property at high-temperature and battery property of high capacity is provided. A spinel type lithium-manganese composite oxide for a lithium ion battery represented by a general formu... | 02/14/2012 |
| 7988880 | Spinel type lithium transition metal oxide In order to provide a novel spinel type lithium transition metal oxide (LMO) having excellent power performance characteristics, in which preferably both the power performance characteristics and the cycle performance at high temperature life characteristics may be ... | 08/02/2011 |
| 7988879 | Method for preparing lithium metal phosphate Disclosed is a method for preparing a lithium metal phosphate represented by the following Formula 1 by using a mixture of a metal (M) with a metal oxide containing the same metal: LixMyPO4 [Formula 1] ... | 08/02/2011 |
| 7935270 | Cathode active material and lithium battery using the same Provided is a cathode active material having a layered-spinel composite structure lithium metal oxide represented by Formula 1: xLi2MO3-yLiMeO2-zLi1+dM′2−dO4 (1... | 05/03/2011 |
| 7927506 | Cathode active material and lithium battery using the same Cathode active materials including lithium composite metal oxides having layered-spine composite structures are provided. The lithium metal oxide may be represented by the formula xLi2MO3-yLiMeO2-zLi1+dM′2−d... | 04/19/2011 |
| 7892700 | Electrode catalyst containing two or more metal components, method of preparing the same, and fuel cell including the electrode catalyst An electrode catalyst including two or more metal components used in an anode and/or a cathode of a proton exchange membrane fuel cell (PEMFC) or a direct methanol fuel cell (DMFC), a method of preparing the same, and a fuel cell including the electrode catalyst. Th... | 02/22/2011 |
| 7875204 | Flame retarding polymer electrolyte composition containing maleimides A flame retarding polymer electrolyte composition containing maleimides includes a modified maleimide; a lithium salt; and at least one ionic solution in a ratio of at least 2 wt % relative to the total weight of the composition. By using the hyperbranched dendrimer... | 01/25/2011 |
| 7658863 | Si-C-O composite, making method, and non-aqueous electrolyte secondary cell negative electrode material A Si—C—O composite powder is obtained by curing a reactive silane or siloxane having crosslinkable groups through heat curing or catalytic reaction into a crosslinked product and sintering the crosslinked product in an inert gas stream at a temperature of 700-1,... | 02/09/2010 |
| 7442469 | Cathode active material and non-aqueous electrolyte secondary battery A cathode with a cathode active material is provided. The cathode active material is obtained by mixing a zirconium-containing lithium cobalt composite oxide containing zirconium as a sub-component element in a first lithium cobalt composite oxide expressed by a for... | 10/28/2008 |
| 7442758 | Polymer compound for use in electrode material, electrode using the same and nonaqueous solution battery using the same The present invention provides a polymer compound for an electrode material permitting operation at low temperatures and attainment of large capacities, an electrode using the polymer compound, and a nonaqueous solution battery involving the electrode as the positiv... | 10/28/2008 |
| 7438837 | Method of producing solid electrolyte and solid electrolyte A method of producing a solid electrolyte (3, 13) is disclosed wherein solid electrolyte material is prepared having a composition expressed by a formula: (1-x) ZrO2 {xSc2O3 (where x is a number equal to or greater than 0.05 and equa... | 10/21/2008 |
| 7435498 | Polymer electrolyte membranes crosslinked by nitrile trimerization A method is provided for making a crosslinked polymer electrolyte, typically in the form of a membrane for use as a polymer electrolyte membrane in an electrolytic cell such as a fuel cell, by trimerization of nitrile groups contained on groups pendant from the poly... | 10/14/2008 |
| 7432015 | Negative active material for a rechargeable lithium battery, a method of preparing the same, and a rechargeable lithium battery comprising the same The negative active material for a rechargeable lithium battery of the present invention includes a carbonaceous material and a silicon-based compound represented by Formula 1: Si(1-y)MyO1+x (1) where 0 | 10/07/2008 |
| 7429434 | Cathode active material powder for lithium secondary battery It is to provide a cathode active material powder for a positive electrode for a lithium secondary battery, which has a large volume capacity density, high safety and excellent durability for charge and discharge cycles. A cathode active material powder for a lithiu... | 09/30/2008 |
| 7413829 | Lithium secondary battery In a lithium secondary battery comprising positive and negative electrodes each comprising at least an active material capable of occluding and releasing lithium ions, a binder and a current collector, and an electrolytic solution, the active material in the positiv... | 08/19/2008 |
| 7384664 | Positive-electrode active material for non-aqueous electrolyte secondary cell and process for preparing the same A positive-electrode active material for non-aqueous electrolyte secondary cells which combine improved discharge property and operational safety, and a process for preparing the same are provided. The positive-electrode active material comprises a base and one or m... | 06/10/2008 |
| 7381497 | Positive electrode active material for non-aqueous electrolyte secondary battery A positive electrode active material for a non-aqueous electrolyte secondary battery, comprising a lithium-containing composite oxide, wherein the composite oxide is represented by the general formula: LizCo1-x-yMgxMyO | 06/03/2008 |
| 7381496 | Lithium metal oxide materials and methods of synthesis and use A composition having a formula LixMgyNiO2 wherein 0.9 | 06/03/2008 |
| 7374841 | Positive electrode active matter and secondary battery using this A cathode active material includes: (a) first oxide including (1) lithium (Li), nickel (Ni) and manganese, (2) a first element MI selected from Group 2 to Group 14 elements, and (3) oxygen; (b) a second oxide including (1) lithium, (2) a second element MII including... | 05/20/2008 |
| 7368097 | Preparation of nanocrystalline lithium titanate spinels Process for preparing nanocrystalline lithium titanate spinels by reacting lithium hydroxide and a titanium alkoxide at elevated temperature in a reaction mixture which forms water of reaction. ... | 05/06/2008 |
| 7364793 | Powdered lithium transition metal oxide having doped interface layer and outer layer and method for preparation of the same The present invention provides a powdered lithium transition metal oxide useful as a major component for cathode active material of rechargeable lithium batteries, comprising a lithium transition metal oxide particle, a doped interface layer formed near the surface ... | 04/29/2008 |
| 7354531 | Polymer electrolyte composition A composition for use as a polymer electrolyte, wherein said composition includes one or more polar materials and one or more polyesters of formula III, wherein each unit A may be identical or different and is of the struct... | 04/08/2008 |
| 7351498 | Lithium ion polymer secondary battery its electrode and method for synthesizing polymer compound in binder used in adhesion layer thereof The present invention provides a lithium ion polymer battery comprising an electrode having excellent adhesion and electrical conductivity between a current collector and an active material layer, cycle capacity maintaining characteristics being improved, wherein a ... | 04/01/2008 |
| 7348100 | Product and method for the processing of precursors for lithium phosphate active materials Methods for producing an electrode active material precursor, comprising: a) producing a mixture comprising particles of lithium hydrogen phosphate, having a first average particle size, and a metal hydroxide, having a second avera... | 03/25/2008 |
| 7348096 | Flexible thin printed battery and device and method of manufacturing same A flat, flexible electrochemical cell is provided. The within invention describes various aspects of the flat, flexible electrochemical cell. A printed anode is provided that obviates the need for a discrete anode current collector, thereby reducing the size of the ... | 03/25/2008 |
| 7335447 | Graphite particles and lithium secondary battery using the same as negative electrode A graphite particle obtained by assembling or binding together a plurality of flat-shaped particles so that the planes of orientation are not parallel to one another, or a graphite particle in which aspect ratio is 5 or less or specific surface area is 8 m2 | 02/26/2008 |
| 7326494 | Composite material and electrodes made therefrom A composite material having utility as a cathode material for a lithium ion battery includes a first component which is a metal phosphate and a second component which is a metal nitride, a metal oxynitride, or a mixture of the two. The second component is coated on,... | 02/05/2008 |
| 7326497 | Graphite-containing composition, negative electrode for a lithium secondary battery, and lithium secondary battery Disclosed is a negative electrode for a lithium secondary battery which is prepared by mixing graphite powder with a binder. The negative electrode comprises graphite with an intensity ratio I(110)/I(002) of 0.5 or more wherein I(002) is an X-ray diffraction peak in... | 02/05/2008 |
| 7326498 | Method for preparing positive active material for rechargeable lithium battery and positive active material prepared by same Disclosed is a method of preparing a positive active material for a rechargeable lithium battery including adding first and second compounds to a solvent to prepare an acidic solution with a pH from 0.01 to 3, the first compound including an element that is capable ... | 02/05/2008 |
| 7316864 | Slurry composition, electrode and secondary cell A slurry composition for electrode comprising a binder, an active material, and a liquid medium, characterized in that the binder comprises a polymer (X) comprising 60 to 95 mole % of repeating units derived from acrylonitrile or methacrylonitrile and 5 to 30 mole %... | 01/08/2008 |
| 7316717 | Method of manufacturing an electrode active material particle for a rechargeable battery A rechargeable battery includes electrodes containing particles of an active material capable of being alloyed with Li. A metallic element that is not alloyed with Li is distributed by its diffusion in particles of the active material. ... | 01/08/2008 |
| 7309545 | Anode material and battery using the same Provided is a battery with a higher capacity and superior charge-discharge cycle characteristics. A cathode contained in a package can and an anode contained in a package cup are laminated with a separator in between. The separator is impregnated with an electrolyte... | 12/18/2007 |
| 7300721 | Alkaline secondary electrochemical generators with a zinc anode The invention relates to secondary alkaline electrochemical generators with a zinc anode in an electrolyte, the active mass of said anode comprising at least one conductive ceramic. According to the invention, the electrolyte of the generator is made up of a highly-... | 11/27/2007 |
| 7294434 | Nickel Hydroxide electrode material with improved microstructure and method for making the same Nickel hydroxide material comprising particles with a microstructure including crystallites of less than 103 Å as measured in the 101 direction by x-ray diffraction. A method of making positive electrode material for use in an alkaline rechargeable electroc... | 11/13/2007 |
| 7285359 | Secondary battery-use negative electrode and secondary battery using it An object of the present invention is to provide a negative electrode for a secondary battery which has large capacity and restrains a rise in resistance inside the battery and reduction in capacity even after cycles and the secondary battery using the same. A first... | 10/23/2007 |
| 7285357 | Electrochemically active material for the positive electrode of an electrochemically rechargeable lithium cell An electrochemically active material resulting from substituting a portion of the nickel in a single-phase composite oxide of nickel and lithium of the LiNiO2 type, characterized in that the active material satisfies the formula: Li(M1 | 10/23/2007 |
| 7282301 | Method for making a composite electrode material A composite material includes a first phase which comprises LixMy(PO4)z wherein M is at least one metal, y and z are independently 0, and x is less than or equal to 1. The material includes a second phase which has an elec... | 10/16/2007 |
