Patent application number | Description | Published |
20080318126 | CATHODE MIX AND NONAQUEOUS ELECTROLYTE BATTERY - A cathode mix for nonaqueous electrolyte secondary batteries includes a cathode active material having an olivine crystal structure, and polyvinyl pyrrolidone. Also, a nonaqueous electrolyte secondary battery includes: a cathode; an anode; and a nonaqueous electrolyte, wherein the cathode includes: a cathode active material having an olivine crystal structure; and polyvinyl pyrrolidone. | 12-25-2008 |
20090053614 | NON-AQUEOUS ELECTROLYTIC SOLUTION SECONDARY BATTERY - A non-aqueous electrolytic solution secondary battery includes a positive electrode containing, as a positive electrode active material, a compound represented by the following general formula, Li | 02-26-2009 |
20090142668 | CATHODE ACTIVE MATERIAL, CATHODE, AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - The present application provides a nonaqueous electrolyte secondary battery which includes a cathode having a cathode active material layer, an anode, and a nonaqueous electrolyte, wherein the cathode active material layer includes secondary particles of a lithium phosphate compound having olivine structure, an average particle diameter A of primary particles constituting the secondary particles is 50 nm or more and 500 nm or less, and a ratio B/A of a pore diameter B of the secondary particles to the average particle diameter A of the primary particles is 0.10 or more and 0.90 or less. | 06-04-2009 |
20090148771 | CATHODE AND NONAQUEOUS ELECTROLYTE BATTERY - A nonaqueous electrolyte battery includes a cathode having a cathode active material layer including a lithium phosphate compound having an olivine structure; an anode having an anode active material; and a nonaqueous electrolyte, wherein the cathode active material layer includes a carbon material, of which a ratio of a peak intensity at 1,360 cm | 06-11-2009 |
20110045357 | ELECTROLYTE AND CELL - Disclosed herein is an electrolyte including: a solvent; an electrolyte salt; and an alkanamine derivative represented by the following formula (1): | 02-24-2011 |
20130029225 | ACTIVE MATERIAL, METHOD OF MANUFACTURING THE SAME, ELECTRODE, SECONDARY BATTERY, BATTERY PACK, ELECTRIC VEHICLE, ELECTRIC POWER STORAGE SYSTEM, ELECTRIC POWER TOOL, AND ELECTRONIC DEVICE - A secondary battery includes: a cathode including an active material; an anode; and an electrolytic solution. The active material has a composition represented by Formula (1) described below. A median diameter (D90) of the active material is from about 10.5 micrometers to about 60 micrometers both inclusive, the median diameter (D90) being measured by a laser diffraction method. A half bandwidth (2θ) of a diffraction peak corresponding to a (020) crystal plane of the active material is from about 0.15 degrees to about 0.24 degrees both inclusive, the half bandwidth (2θ) being measured by an X-ray diffraction method. | 01-31-2013 |
20130260217 | BATTERY, NEGATIVE ELECTRODE FOR BATTERY, BATTERY PACK, ELECTRONIC APPARATUS, ELECTRIC VEHICLE, ELECTRICITY STORAGE APPARATUS AND ELECTRIC POWER SYSTEM - A battery includes a positive electrode, a negative electrode where a negative electrode active material layer containing a negative electrode active material containing natural graphite is formed on at least one surface of a negative electrode collector, and an electrolyte. A thickness of the negative electrode active material layer per one surface of the negative electrode collector is 50 μm or more and 100 μm or less, and in the negative electrode active material layer from the negative electrode collector up to ½ of the thickness of the layer in a surface direction of the negative electrode active material layer, an orientation degree A expressed as (peak intensity of carbon 002 face/peak intensity of carbon 110 face) that is a peak intensity ratio of a carbon 002 face and a carbon 110 face measured by an X-ray diffraction is 100 or more and 500 or less. | 10-03-2013 |
20130330623 | ELECTRODE, SECONDARY BATTERY, BATTERY PACK, ELECTRIC VEHICLE, ELECTRIC POWER STORAGE SYSTEM, ELECTRIC POWER TOOL, AND ELECTRONIC APPARATUS - (A) A cathode active material of a cathode includes a lithium phosphate compound represented by Li | 12-12-2013 |
20140058598 | CATHODE ACTIVE MATERIAL, CATHODE, BATTERY, BATTERY PACK, ELECTRONIC APPARATUS, ELECTRIC VEHICLE, ELECTRIC STORAGE APPARATUS, AND ELECTRIC POWER SYSTEM - A cathode active material includes a first cathode material configured of a layered rocksalt type lithium metal oxide, the layered rocksalt type lithium metal oxide including lithium and a metal other than lithium, the metal configured of nickel (Ni), or nickel (Ni) and the like. A site occupancy of metal ions other than lithium at a 3a site obtained by Rietveld analysis of a powder X-ray diffraction pattern of the first cathode material in a cathode in a discharged state is about 5% or less, and a site occupancy of metal ions other than the metal occupying a part of a 3b site at the 3b site is about 1% or over, and the cathode active material is covered with a coating film, and an exposed amount of the cathode active material exposed from the coating film is within a range from about 0.05% to about 8% both inclusive. | 02-27-2014 |
20140120417 | BATTERY, ELECTRODE, BATTERY PACK, ELECTRONIC DEVICE, ELECTRIC VEHICLE, POWER STORAGE DEVICE, AND POWER SYSTEM - There is provided a battery including a positive electrode, and a negative electrode. At least one electrode of the positive electrode and the negative electrode includes a current collector, a mixture layer over one main surface of the current collector, the mixture layer including a gap through which a part of the current collector is exposed, a lead bonded to an exposed surface of the current collector exposed through the gap, and a protective layer configured to protect the current collector, at least a part of the protective layer being over the exposed surface of the current collector and interposed between a part of the lead and the exposed surface. The part of the lead includes at least a part of a peripheral edge of the lead. | 05-01-2014 |
20140141303 | BATTERY, BATTERY PACK, ELECTRONIC APPARATUS, ELECTRIC VEHICLE, ELECTRIC POWER STORAGE APPARATUS, AND ELECTRIC POWER SYSTEM - An anode includes an anode double side coating section; a first anode single-side coating section; and an anode double side non-coating section, the anode double side non-coating section, the first anode single-side coating section, and the anode double side coating section are provided in this order from a first end on the side of spiral winding start of the anode, and in an anode, (“Area density of an anode mixture layer on the first main surface side of the first anode single-side coating section”)/(“Area density of the anode mixture layer on the first main surface side of sections other than the first anode single-side coating section”) is equal to or more than about 1.2. | 05-22-2014 |
20140370337 | ELECTRODE, SECONDARY BATTERY, BATTERY PACK, ELECTRIC VEHICLE, ELECTRIC POWER STORAGE SYSTEM, ELECTRIC POWER TOOL, AND ELECTRONIC APPARATUS - A secondary battery includes a cathode, an anode, and a non-aqueous electrolytic solution. The cathode includes a cathode current collector, and a cathode active material layer provided on the cathode current collector. The cathode active material layer is configured of a single layer and includes a plurality of cathode active material particles. When the cathode active material layer is divided, at one or more arbitrary positions, into two or more layers, an average particle size of the cathode active material particles in an uppermost layer is smaller than an average particle size of the cathode active material particles in a lowermost layer in the two or more layers of the divided cathode active material layer. | 12-18-2014 |