Did You Know...
...that one person who claimed to be the inventor of the television is Russian emigre Vladimir Zworykin? In 1929 David Sarnoff, founder of RCA, asked Zworykin what it would take to develop TV for commercial use. He said: a year and a half and $100,000. In reality, it took 20 years and $50 million! Before his death in 1982 at the age of 92, Zworykin said of his invention: "The technique is wonderful. It is beyond my expectations. But the programs! I would never let my children even come close to this thing."
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| Number | Title | Issue Date |
| 8168327 | Imide derivative, material for organic electroluminescent device and organic electroluminescent device using the same An imide derivative represented by the following formula (A): wherein Ra and Rb are each a hydrogen atom, a halogen atom, a cyano group, an alkyl group, a fluoroalkyl group or an aryl group; at least o... | 05/01/2012 |
| 8142929 | Positive electrode for non-aqueous electrolyte battery and non-aqueous electrolyte battery A positive electrode for non-aqueous electrolyte battery includes a positive electrode active material layer containing at least a positive electrode active material and a binder and a coating layer containing a polymer provided on the positive electrode active mate... | 03/27/2012 |
| 8133611 | Method of making polypyrrole and silver vanadium oxide composite In one embodiment of the present disclosure, a composite electrode for a battery is provided. The composite electrode includes silver vanadium oxide present in an amount from about 75 weight percent to about 99 weight percent and polypyrrole present in an amount fro... | 03/13/2012 |
| 8097361 | Nanotube wiring This invention concerns a novel method for surface derivatization of electrode materials for Li-ion batteries. The derivatization is based on adsorption of a composite assembly consisting of amphiphilic redox active molecule attached to single walled carbon nanotube... | 01/17/2012 |
| 8034483 | Anode and lithium-ion secondary battery An anode for lithium-ion secondary battery is provided as one capable of ensuring sufficient safety (suppression of dendrites) while achieving a higher capacity (higher density of the electrode), and permitting formation of a lithium-ion secondary battery with excel... | 10/11/2011 |
| 7968229 | Positive electrode for non-aqueous electrolyte battery and non-aqueous electrolyte battery A positive electrode for a non-aqueous electrolyte battery includes a positive electrode active material layer containing at least a positive electrode active material and a binder and a coating layer containing a polymer provided on the positive electrode active ma... | 06/28/2011 |
| 7910245 | Positive active material with a polyether modified silicone oil and rechargeable lithium battery including the same A positive active material for rechargeable lithium battery includes an active material that can reversibly intercalate and deintercalate lithium; and polyether modified silicone oil supported on the active material. The positive active material is not deteriorated ... | 03/22/2011 |
| 7887957 | Non-aqueous air battery and catalyst therefor A non-aqueous air battery of the present invention includes a negative electrode for which a material which absorbs and releases lithium ions is used as a negative electrode active material, a positive electrode for which oxygen is used as a positive electrode activ... | 02/15/2011 |
| 7867654 | Nonaqueous electrolyte secondary battery The nonaqueous electrolyte secondary battery according to one aspect of the present invention includes a lithium-transition metal compound as a positive electrode active material that is capable of intercalating and deintercalating a lithium ion and is represented b... | 01/11/2011 |
| 7846582 | Negative electrode, battery using the same, and method of manufacturing negative electrode A negative electrode is provided. The negative electrode includes a negative electrode current collector, and a negative electrode active material layer formed over the negative electrode current collector, and including a plurality of columnar bodies. An organic ma... | 12/07/2010 |
| 7829219 | Cathode for lithium secondary batteries having improved coating properties and lithium secondary batteries using the same A cathode for lithium secondary batteries coated with a slurry including an active material, a binder and a solvent, and further including a polymerization inhibitor, is disclosed. Gelation of the slurry is prevented during production of the cathode so that adhesion... | 11/09/2010 |
| 7749654 | Alkaline cell with performance enhancing additives Alkaline electrochemical cells having extended service life and acceptable gassing and corrosion properties are disclosed. An amphoteric surfactant can be incorporated into the gelled anode mixture of an alkaline electrochemical cell, optionally with an organic phos... | 07/06/2010 |
| 7695865 | Method of manufacturing a solid electrolyte battery having particle ink layers A method of manufacturing a solid electrolyte battery includes a step of thermally pressing a composite layer including a positive electrode ink layer, an electrolyte ink layer and a negative electrode ink layer that are formed by coating a positive electrode ink, a... | 04/13/2010 |
| 7625669 | Lithium secondary battery having improved stability to overcharge Disclosed is a lithium secondary battery comprising an electrode assembly composed of a cathode, an anode and a separator, and a lithium electrolyte, wherein the electrodes and/or electrolyte include a compound (“urethane compound”) and/or polymer (“poly ureth... | 12/01/2009 |
| 7384433 | Densification of compressible layers during electrode lamination A compressible and deformable layer is densified and laminated to a layer of a material that is relatively resistant to stretching. The densification and bonding take place in a single step. As used in fabrication of electrodes, for example, electrodes for double la... | 06/10/2008 |
| 7384686 | Porous composite product in particular with a high specific surface preparation process and electrode formed of a porous composite film for an electro-chemical assembly A porous composite product in the form of a film with a high specific surface. Used in a wide range of electrochemical products especially in the field of selective membranes, packaging or catalysis. The porous composite product has a high homogeneity in the distrib... | 06/10/2008 |
| 7361729 | Ion-conducting sulfonated polymeric materials Sulfonated polymers are made by the direct polymerization of a sulfonated monomer to form the sulfonated polymers. The types of sulfonated polymers may include polysulfones or polyimides. The sulfonated polymers can be formed into membranes that may be used in proto... | 04/22/2008 |
| 7358011 | Non-aqueous electrolyte secondary battery negative electrode material, making method, and lithium ion secondary battery A non-aqueous electrolyte secondary battery negative electrode material is provided wherein a negative electrode active material containing a lithium ion-occluding and releasing material which has been treated with an organosilicon base surface treating agent is sur... | 04/15/2008 |
| 7341806 | Battery having carbon foam current collector A battery cell includes a negative current collector and at least one carbon foam positive current collector disposed within the cell such that the negative current collector at least partially surrounds the at least one carbon foam positive current collector. An in... | 03/11/2008 |
| 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 |
| 7332218 | Electrically disbonding materials An electrochemically disbondable composition is provided having a matrix functionality and an electrolyte functionality. The matrix functionality provides an adhesive bond to a substrate, and the electrolyte functionality provides sufficient ionic conductivity to th... | 02/19/2008 |
| 7318982 | Polymer composition for encapsulation of electrode particles Compositions and methods are provided for coating electroactive particles. Coating materials include a conductive component and a low refractive index component. Coatings are provided in which the conductive and low refractive index components are linked and/or do n... | 01/15/2008 |
| 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 |
| 7309544 | Cell electrode and electrochemical cell therewith This invention provides an electrode for an electrochemical cell in which an active material in an electrode material is a proton-conducting compound, wherein the electrode material comprises a nitrogen-containing heterocyclic compound or a polymer having a unit con... | 12/18/2007 |
| 7303837 | Positive electrode for lithium-sulfur battery and lithium-sulfur battery and article of manufacture including same A positive electrode for a lithium-sulfur battery and a lithium-sulfur battery including the same have a positive electrode that includes a positive active material, a conductor, an organic binder, and an additive. The positive active material includes at least one ... | 12/04/2007 |
| 7273680 | Alkaline battery including nickel oxyhydroxide cathode and zinc anode A primary alkaline battery includes a cathode including a nickel oxyhydroxide and an anode including zinc or zinc alloy particles. Performance of the nickel oxyhydroxide alkaline cell is improved by adding zinc fines to the anode. ... | 09/25/2007 |
| 7262361 | Semiconductor thin film electrodes made by using organic dyes as the photosensitizer and photoelectric conversion devices A semiconductor film electrode using a specific organic dye sensitizer, a high efficiency dye-sensitized photovoltaic conversion element using the electrode, and a dye-sensitized photoelectrochemical solar cell using the element are described. The semiconductor film... | 08/28/2007 |
| 7252906 | Positive active material for a lithium secondary battery with higher performance and preparation method of the same Disclosed is a positive active material for a lithium secondary battery and a preparation method of the same that can improve cycle-life characteristics and storage characteristics at a high temperature by improving structural safety characteristics and electrochemi... | 08/07/2007 |
| 7250233 | Lithium-sulfur batteries A lithium-sulfur battery having a positive electrode including a positive active material including an active sulfur, where the positive electrode comprises an electron-conductive path and an ion-conductive path, and includes active pores of the average size of up t... | 07/31/2007 |
| 7238451 | Conductive polyamine-based electrolyte The present invention is directed to a polymer electrolyte comprising amine groups dispersed throughout the polymer backbone, including various poly(ethylenimine)-based polymers, which enable ionic movement for use in various applications, including for example batt... | 07/03/2007 |
| 7226696 | Alkaline cell with performance enhancing additives Alkaline electrochemical cells having extended service life and acceptable gassing and corrosion properties are disclosed. An amphoteric surfactant can be incorporated into the gelled anode mixture of an alkaline electrochemical cell, optionally with an organic phos... | 06/05/2007 |
| 7226646 | Membranes and electrochemical cells incorporating such membranes One aspect of the invention provides an ion-conducting membrane comprising an ion-conducting region and a non-ion-conducting region. The ion-conducting region is formed by a plurality of ion-conducting passageways that extend through the membrane. The passageways ar... | 06/05/2007 |
| 7226693 | Cadmium negative electrode for alkaline storage battery and method for producing the same A method for producing a cadmium negative electrode for alkaline batteries according to the present invention comprises a step of obtaining a cadmium active-substance impregnated electrode plate by impregnating said electrode substrate with a cadmium active substanc... | 06/05/2007 |
| 7226697 | Electricity storage device A charge storage device such as a battery, wherein a positive electrode comprises a nitroxyl compound having a structure of a nitroxyl cation moiety represented by formula (I) in an oxidized state while having a structure of a nitroxyl radical moiety represented by ... | 06/05/2007 |
| 7223491 | Fuel cells incorporating membranes A fuel cell has an ion-conducting membrane comprising an ion-conducting region and a non-ion-conducting region. The ion-conducting region is formed by a plurality of ion-conducting passageways that extend through the membrane. The passageways are filled with ion-con... | 05/29/2007 |
| 7220518 | Secondary battery and electrolyte used therefor A secondary battery which exhibits less deterioration of capacity, can maintain high energy densities in high temperature atmospheres, and has high practicality, and an electrolyte used therefor, are provided. The electrolyte contains an anion expressed by (PFa... | 05/22/2007 |
| 7220818 | Noncovalent functionalization of nanotubes Nanotubes are treated with poly{(5-alkoxy-m-phenylenevinylene)-co-[(2,5-dioctyloxy-p-phenylene)vinylene]} (PAmPV) polymers and derivatives thereof to provide noncovalent functionalization of the nanotubes which increases solubility and enhances other properties.... | 05/22/2007 |
| 7211350 | Nanostructure lithium titanate electrode for high cycle rate rechargeable electrochemical cell Rechargeable electrochemical cells, such as lithium batteries and asymmetric hybrid battery/supercapacitor systems, exhibiting exceptional specific capacity levels and stability over extended high-rate recharge cycling comprise nanostructure zero strain Li4 | 05/01/2007 |
| 7205071 | Secondary battery and capacitor utilizing indole compounds A secondary battery and capacitor includes as an active material of an electrode a compound having a trimer structure comprising three structure units of one or more kind of indole compounds selected from indole and indole derivatives and a condensed polycyclic stru... | 04/17/2007 |
| 7189476 | Rechargeable lithium cell having an anode comprised of carbon nanotubes An anode for a rechargeable lithium cell comprises carbon nanotubes that contain within them an element that can form alloys or compounds reversibly with lithium over a range of compositions. The element within the nanotubes may be aluminum or tin. These carbon nano... | 03/13/2007 |
