Patent application number | Description | Published |
20080254368 | CATHODE ACTIVE MATERIAL, CATHODE, NONAQUEOUS ELECTROLYTE BATTERY, AND METHOD FOR MANUFACTURING CATHODE - A cathode active material has: a lithium composite oxide which contains the highest proportion of nickel among constituent metal elements except lithium; and a phosphorus compound which is contained near the surface of the lithium composite oxide, a cathode including the cathode active material, and a method for manufacturing the cathode. | 10-16-2008 |
20080318131 | CATHODE ACTIVE MATERIAL FOR NONAQEOUS ELECTROLYTE BATTERY, METHOD OF PRODUCING THE SAME AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - A cathode active material for nonaqueous electrolyte secondary battery is provided. The cathode active material includes: composite oxide particles containing at least lithium and cobalt; a coating layer disposed on at least a part of the surface of said composite oxide particles and including an oxide containing lithium and at least one coating element selected from nickel and manganese; and a surface layer disposed on at least a part of said coating layer and including an oxide containing at least one element selected from among lanthanoids. | 12-25-2008 |
20090200510 | METHOD OF MANUFACTURING CATHODE ACTIVE MATERIAL - A method of manufacturing a cathode active material is provided. The method includes the step of precipitating step for providing a solution of a deposition component onto composite oxide particles including lithium Li and nickel Ni, removing a solvent from the solution on the composite oxide particles within a short time period, and precipitating the deposition component on surfaces of the composite oxide particles; and heating step for heating under an oxidation atmosphere the composite oxide particles with the deposition component precipitated on the surfaces. | 08-13-2009 |
20100173197 | CATHODE ACTIVE MATERIAL, METHOD OF MANUFACTURING THE SAME AND BATTERY - A cathode active material capable of obtaining a high capacity and capable of improving stability or low-temperature characteristics, a method of manufacturing the same, and a battery are provided. A cathode ( | 07-08-2010 |
20100209757 | NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - A nonaqueous electrolyte secondary battery includes a positive electrode, a negative electrode, a nonaqueous electrolyte, and a separator. The positive electrode includes a lithium composite oxide having an average composition represented by the following formula (1) | 08-19-2010 |
20100273057 | POSITIVE ELECTRODE ACTIVE MATERIAL, METHOD FOR MANUFACTURING POSITIVE ELECTRODE ACTIVE MATERIAL AND NONAQUEOUS ELECTROLYTE BATTERY - A positive electrode active material includes a lithium complex oxide particle, and a coating layer formed on at least a part of the surface of the lithium complex oxide particle. The lithium complex oxide particle is a lithium complex oxide particle composed mainly of nickel. The coating layer contains an oxo acid and/or an oxo acid compound, an acidity of the surface of the lithium complex oxide particle composed mainly of nickel is increased by the coating layer. The acidity is determined based on a pH of a supernatant of water in a state where after 1.0 part by weight of the lithium complex oxide particle composed mainly of nickel and having a coating layer formed thereon is dispersed in 50 parts by weight of water. The lithium complex oxide particle sediments, and the pH is less than 8.0. | 10-28-2010 |
20110014518 | SECONDARY BATTERY, ANODE, CATHODE, AND ELECTROLYTE - A secondary battery, a cathode, an anode, and an electrolyte are provided. For example, a secondary battery is provided including an anode; a cathode; and an electrolyte, wherein the anode includes an anode active material and a coat including a substance selected from the group consisting of metal barium and barium compounds. | 01-20-2011 |
20110104557 | POSITIVE ELECTRODE AND NONAQUEOUS ELECTROLYTE BATTERY - A positive electrode for a nonaqueous electrolyte battery includes a collector, and a positive electrode active material layer. The positive electrode active material layer includes a positive electrode active material, and also includes a heteropoly acid and/or heteropoly acid compound and phosphorous acid as additives. | 05-05-2011 |
20110217597 | NONAQUEOUS ELECTROLYTE BATTERY - A nonaqueous electrolyte battery is provided and includes a positive electrode having a positive electrode active material layer containing a positive electrode active material formed on at least one surface of a positive electrode collector, a negative electrode having a negative electrode active material layer containing a negative electrode active material formed on at least one surface of a negative electrode collector, a separator provided between the positive electrode and the negative electrode, and an electrolyte. A coating film in a gel form containing an amorphous polyacid and/or polyacid compound containing one or more kinds of a polyelement is formed on the surface of at least a part of the negative electrode. Also, at least one of the polyacid and the polyacid compound contains a polyatom ion with a valence of 6 and a polyatom ion with a valence of less than 6. | 09-08-2011 |
20120009474 | POSITIVE ELECTRODE ACTIVE MATERIAL, NONAQUEOUS ELECTROLYTE BATTERY AND METHOD FOR MANUFACTURING POSITIVE ELECTRODE ACTIVE MATERIAL - A positive electrode active material includes: a secondary particle obtained upon aggregation of a primary particle that is a lithium complex oxide particle in which at least nickel (Ni) and cobalt (Co) are solid-solved as transition metals, wherein an average composition of the whole of the secondary particle is represented by the following formula (1): | 01-12-2012 |
20120189891 | CATHODE ACTIVE MATERIAL, CATHODE, AND NONAQUEOUS ELECTROLYTE BATTERY - A cathode active material has: a lithium composite oxide which contains the highest proportion of nickel among constituent metal elements except lithium; and a phosphorus compound which is contained near the surface of the lithium composite oxide, and a cathode including the cathode active material. | 07-26-2012 |
20120321911 | NON-AQUEOUS ELECTROLYTE BATTERY, NON-AQUEOUS ELECTROLYTE BATTERY POSITIVE ELECTRODE, NON-AQUEOUS ELECTROLYTE BATTERY NEGATIVE ELECTRODE, NON-AQUEOUS ELECTROLYTE BATTERY SEPARATOR, ELECTROLYTE FOR NON-AQUEOUS ELECTROLYTE, AND METHOD OF MANUFACTURING NON-AQEUOUS ELECTROLYTE BATTERY SEPARATOR - A battery is composed of a positive electrode in which a positive electrode active material layer including a positive electrode active material is formed on a positive electrode collector, a negative electrode in which a negative electrode active material layer including a negative electrode active material is formed on a negative electrode collector, a separator provided between the positive electrode and the negative electrode, and an electrolyte impregnated in the separator. The battery further includes at least one of a heteropoly acid and a heteropoly acid compound as an additive at least in one of the positive electrode, the negative electrode, the separator, and the electrolyte. | 12-20-2012 |
20130230776 | CATHODE ACTIVE MATERIAL, METHOD OF MANUFACTURING IT, CATHODE, AND BATTERY - A cathode active material capable of increasing a capacity and improving high temperature characteristics or cycle characteristics, a method of manufacturing it, a cathode using the cathode active material, and a battery using the cathode active material are provided. In a cathode active material contained in a cathode, a coating layer is provided on at least part of complex oxide particle containing at least lithium (Li) and cobalt (Co). The coating layer is an oxide which contains lithium (Li) and at least one of nickel (Ni) and manganese (Mn). | 09-05-2013 |
20130244113 | CATHODE ACTIVE MATERIAL, METHOD OF MANUFACTURING THE SAME AND BATTERY - A cathode active material capable of obtaining a high capacity and capable of improving stability or low-temperature characteristics, a method of manufacturing the same, and a battery are provided. A cathode ( | 09-19-2013 |
20140162124 | CATHODE ACTIVE MATERIAL, METHOD OF MANUFACTURING IT, CATHODE, AND BATTERY - A cathode active material capable of increasing a capacity and improving high temperature characteristics or cycle characteristics, a method of manufacturing it, a cathode using the cathode active material, and a battery using the cathode active material are provided. In a cathode active material contained in a cathode, a coating layer is provided on at least part of complex oxide particle containing at least lithium (Li) and cobalt (Co). The coating layer is an oxide which contains lithium (Li) and at least one of nickel (Ni) and manganese (Mn). | 06-12-2014 |