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 |
20080248392 | Non-Aqueous Electrolyte Secondary Battery - A non-aqueous electrolyte secondary battery including a positive electrode, a negative electrode, a separator interposed between the positive electrode and the negative electrode, and an electrolyte, wherein the positive electrode comprises a positive electrode active material comprising a particle of a composite oxide represented by a general formula: Li | 10-09-2008 |
20080252259 | Power supply unit and electric apparatus - Provided is a power supply unit that notifies the third person that the electric apparatus is in the state prohibiting introduction into vehicle and also make the electric apparatus in the state safely introducible into vehicle at the same time. | 10-16-2008 |
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 |
20080268347 | ACTIVE MATERIAL FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY AND MANUFACTURING METHOD THEREFORE - An active material for a non-aqueous electrolyte secondary battery including a lithium-containing transition metal oxide containing nickel and manganese and having a closest-packed structure of oxygen, wherein an atomic ratio M | 10-30-2008 |
20090004564 | Composite Negative Electrode Active Material, Method For Producing The Same And Non-Aqueous Electrolyte Secondary Battery - A composite negative electrode active material including silicon oxide particles represented by SiO | 01-01-2009 |
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 |
20090117469 | POSITIVE ELECTRODE ACTIVE MATERIAL FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY INCLUDING THE SAME - A positive electrode active material for a non-aqueous electrolyte secondary battery including a lithium-containing transition metal oxide having a closest-packed cubic structure of oxygen, the lithium-containing transition metal oxide having a composition represented by the formula (1): | 05-07-2009 |
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 |
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 |
20100276217 | POSITIVE ELECTRODE ACTIVE MATERIAL FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY, POSITIVE ELECTRODE FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - Disclosed is a secondary battery with a non-aqueous electrolyte that has excellent cycle characteristics and output characteristics. Also disclosed is a positive electrode active material for a secondary battery with a non-aqueous electrolyte that includes a powder of a volume resistivity of 20 Ω·cm or more and 100 Ω·cm or less when said powder has a bulk density of 3 g/cm | 11-04-2010 |
20110021774 | METHOD FOR PRODUCING PYRIMIDINE COMPOUND - To provide a method for producing pyrimidine compound useful as an intermediate for agricultural chemicals or pharmaceuticals, which is simple in operation, presents high yield and produces only a small amount of by-products. | 01-27-2011 |
20120156555 | NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - The present invention provides a non-aqueous electrolyte secondary battery including: a positive electrode including a first active material capable of occluding and releasing a lithium ion and a second active material capable of occluding and releasing an anion; a negative electrode including a negative electrode active material capable of occluding and releasing a lithium ion; and an electrolyte containing a salt of a lithium ion and the anion. The second active material is a polymer having a tetrachalcogenofulvalene skeleton in a repeating unit. According to the present invention, provided is a non-aqueous electrolyte secondary battery with improved output characteristics, in particular, a pulse discharge characteristic, without a significant decrease in energy density. | 06-21-2012 |