Patent application number | Description | Published |
20080199773 | NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - A nonaqueous electrolyte secondary battery, comprising a positive electrode having a positive-electrode active material layer reversibly inserting and extracting lithium ions on a positive-electrode current collector, a negative electrode having a negative-electrode active material layer reversibly inserting and extracting lithium ions on a negative-electrode current collector, and a nonaqueous electrolyte solution, wherein at least one of the positive and negative electrodes has a film on the surface and at least one of the positive electrode, the negative electrode and the nonaqueous electrolyte solution contains a nitrogen-containing cyclic compound. Such a nonaqueous electrolyte secondary battery is superior in high-temperature storage stability allowing preservation of favorable discharge rate even after high-temperature storage. | 08-21-2008 |
20080254363 | Electrochemical energy storage device - The present invention provides an electrochemical energy storage device comprising a positive electrode, a negative electrode, and a non-aqueous electrolytic solution containing an ammonium salt, wherein the negative electrode potential upon completion of charging is set to less than 1.8 V and 0.1 V or more relative to a lithium reference in which high electric capacity is obtained and a reductive decomposition reaction of the ammonium salt on the negative electrode is avoided, and thus efficiency upon every charging and discharging cycle is improved, resulting in a long cycle life. | 10-16-2008 |
20090023074 | Nonaqueous electrolyte solution, and electrochemical energy-storing device and nonaqueous-electrolyte- solution secondary battery using the same - A nonaqueous electrolyte solution being liquid at normal temperature, comprising (A) 1,2-dialkoxyethane represented by Formula: R—O—CH | 01-22-2009 |
20090029248 | Nonaqueous electrolyte and secondary battery containing same - Provided is a non-aqueous electrolyte for a secondary battery including a non-aqueous solvent, a solute dissolved in the non-aqueous solvent, and an additive, in which the additive includes an unsaturated chain hydrocarbon compound having two or more carbon-carbon unsaturated bonds and including a main chain having five or more carbon atoms. The unsaturated chain hydrocarbon compound preferable as the additive is 1,3-hexadiene or 2,4-hexadiene. The amount of the unsaturated chain hydrocarbon compound is preferably 0.1 to 10 parts by weight per 100 parts by weight of the non-aqueous solvent. | 01-29-2009 |
20090123848 | Nonaqueous Electrolyte Solution for Electrochemical Energy-Storing Device and Electrochemical Energy-Storing Device Using the Same - A nonaqueous electrolyte solution for electrochemical energy-storing device, comprising (a) a lithium salt, (b) a quaternary ammonium salt containing a quaternary ammonium cation having three or more methyl groups, and (c) a nonaqueous solvent, that allows reliable insertion and extraction of lithium ions into and out of a negative-electrode material having a graphite structure even when the quaternary ammonium salt is dissolved in the nonaqueous electrolyte solution, provides an electrochemical energy-storing device that allows a higher voltage setting in charge and is resistant to capacity deterioration even after repeated charge/discharge cycles. | 05-14-2009 |
20090130565 | Non-aqueous electrolyte and electrochemical energy storage device using the same - A non-aqueous electrolyte of the present invention contains a lithium salt (A), a quaternary ammonium salt (B) containing a straight chain alkyl group having carbon atoms of 4 or less and a solvent (C) composed of at least one compound selected from the group consisting of ethylene carbonate, propylene carbonate, butylene carbonate, γ-butyrolactone, dimethyl carbonate, ethyl methyl carbonate, diethyl carbonate, dimethoxyethane, ethoxymethoxyethane and diethoxyethane. The molar ratio C/A of the solvent (C) to the lithium salt (A) or the molar ratio C/B of the solvent (C) to the ammonium salt (B) is 6 or less. The non-aqueous electrolyte has a single phase. Consequently, there can be obtained a non-aqueous electrolyte of a high ion concentration having an excellent oxidation resistance and reduction resistance. | 05-21-2009 |
20090169999 | NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - A non-aqueous electrolyte secondary battery of the present invention includes a positive electrode including a nickel-containing lithium composite oxide as a positive electrode active material, a negative electrode, a separator interposed between the positive electrode and the negative electrode. The separator includes at least one selected from the group consisting of a layer including a polymer of a monomer containing halogen atoms but not containing a hydrogen atom and a layer including an inorganic oxide. | 07-02-2009 |
20090176164 | Electrochemical Energy Storage Device - An electrochemical energy storage device includes a negative electrode which contains a carbon material and has a negative electrode potential of 1.4 V or less relative to a lithium reference when being charged, and a non-aqueous electrolyte solution prepared by dissolving a lithium salt, an ammonium salt, and at least one kind of fluorinated benzene selected among hexafluorobenzene, pentafluorobenzene, 1,2,3,4-tetrafluorobenzene, 1,2,3,5-tetrafluorobenzene, 1,2,4,5-tetrafluorobenzene and 1,2,3-trifluorobenzene, in a non-aqueous solvent. | 07-09-2009 |
20090246641 | NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - A non-aqueous electrolyte secondary battery of the present invention includes a positive electrode including an active material absorbing and desorbing lithium ions, a negative electrode including an active material absorbing and desorbing lithium ions, a separator interposed between the positive electrode and the negative electrode, and a non-aqueous electrolyte. The separator includes a material containing a substituent group with electron-withdrawing property. The non-aqueous electrolyte includes a non-aqueous solvent and a solute dissolved therein, and the non-aqueous solvent includes at least one selected from the group consisting of a fluorine-containing aromatic solvent, a fluorine-containing cyclic carbonic acid ester, and a fluorine-containing cyclic carboxylic acid ester. | 10-01-2009 |
20090325076 | NON-AQUEOUS ELECTROLYTE AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - A non-aqueous electrolyte secondary battery is produced using a non-aqueous electrolyte including: a non-aqueous solvent that primarily contains a solvent mixture of ethylene carbonate and propylene carbonate and includes a fluorine-substituted ether having a divalent group represented by a formula: —CFX—CH(CH | 12-31-2009 |
20100015533 | NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - A non-aqueous electrolyte secondary battery including: a positive electrode that contains a transition metal oxide capable of absorbing and desorbing lithium ions; a negative electrode that is capable of absorbing and desorbing lithium ions; a porous film that is interposed between the positive electrode and the negative electrode; and a non-aqueous electrolyte, wherein at least one selected from inorganic oxide and polyamide is contained in the porous film, and 5 to 15 vol % of ethylene carbonate is contained in a non-aqueous solvent that is contained in the non-aqueous electrolyte. | 01-21-2010 |
20100040949 | COATING LIQUID FOR USE IN FORMATION OF POSITIVE ELECTRODE FOR LITHIUM SECONDARY BATTERY, POSITIVE ELECTRODE FOR LITHIUM SECONDARY BATTERY, AND LITHIUM SECONDARY BATTERY - A coating liquid for use in formation of a positive electrode for a lithium secondary battery of the present invention includes a large-particle-size active material having an average particle diameter of 1 to 20 μm and a small-particle-size active material having an average particle diameter of 5 to 100 nm, such that the blending ratio by volume between two materials is 90:10 to 50:50, and the average particle diameter ratio (the average particle diameter of large-particle-size active material/the average particle diameter of small-particle-size active material) is from 50 to 500. The coating liquid is excellent in storage stability over a long period of time and makes dense packing of active material possible, and therefore a positive electrode produced with the use of the coating liquid of the present invention can provide a lithium secondary battery having a high energy density and a high capacity. | 02-18-2010 |
20100124708 | NON-AQUEOUS ELECTROLYTE AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - A non-aqueous electrolyte is provided that includes a non-aqueous solvent and an electrolyte salt, wherein the non-aqueous solvent contains a fluorinated ether (1) represented by the following Formula: HCF | 05-20-2010 |
20100285367 | NEGATIVE ELECTRODE ACTIVE MATERIAL FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY, METHOD FOR PRODUCING THE SAME, AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - A negative electrode active material for a non-aqueous electrolyte secondary battery includes an element capable of forming an intermetallic compound with lithium. The negative electrode active material has a water content of 0 to 0.04 molecule per atom of the element. The non-aqueous electrolyte secondary battery includes a negative electrode including the negative electrode active material, a positive electrode, a separator separating the negative electrode and the positive electrode, and a non-aqueous electrolyte. | 11-11-2010 |
20120287541 | SEMICONDUCTOR INTEGRATED CIRCUIT DEVICE - An electrode pad is provided above a circuit block of a semiconductor integrated circuit device. A junction point A and a junction point B are provided on connection lines connecting electrode pads to an internal circuit and an electrostatic discharge (ESD) protection circuit. The junction point A and the junction point B are positioned at locations closer to the ESD protection circuit than to the electrode pads. | 11-15-2012 |
20140170507 | NON-AQUEOUS ELECTROLYTE FOR ELECTROCHEMICAL DEVICES, METHOD FOR PRODUCING THE SAME, AND ELECTROCHEMICAL DEVICE USING THE SAME - The present invention provides: a non-aqueous electrolyte for an electrochemical device, having ion conductivity sufficient for practical use and capable of improving energy density; a method for producing the same; and an electrochemical device using the same. The non-aqueous electrolyte for an electrochemical device includes a non-aqueous solvent and an alkaline earth metal chloride. The alkaline earth metal chloride is dissolved in an amount of 0.015 mol or more relative to 1 mol of the non-aqueous solvent. The total content of the non-aqueous solvent and the alkaline earth metal chloride is 70 mass % or more in the non-aqueous electrolyte. | 06-19-2014 |
20140218831 | SEMICONDUCTOR INTEGRATED CIRCUIT DEVICE - An electrode pad is provided above a circuit block of a semiconductor integrated circuit device. A junction point A and a junction point B are provided on connection lines connecting electrode pads to an internal circuit and an electrostatic discharge (ESD) protection circuit. The junction point A and the junction point B are positioned at locations closer to the ESD protection circuit than to the electrode pads. | 08-07-2014 |
20140242474 | ELECTROCHEMICAL ENERGY STORAGE DEVICE, AND ACTIVE MATERIAL FOR THE SAME AND PRODUCTION METHOD THEREOF - Disclosed is a high-capacity electrochemical energy storage device in which a conversion reaction proceeds as the oxidation-reduction reaction, and the separation (hysteresis) between the electrode potentials for oxidation and reduction is small. The electrochemical energy storage device includes a first electrode including a first active material, a second electrode including a second active material, and a non-aqueous electrolyte interposed between the first and second electrodes. At least one of the first and second active materials is a metal salt having a polyatomic anion and a metal ion, and the metal salt is capable of oxidation-reduction reaction involving reversible release and acceptance of the polyatomic anion. | 08-28-2014 |