Patent application number | Description | Published |
20080311473 | CATHODE ACTIVE MATERIAL FOR A NONAQUEOUS ELECTROLYTE SECONDARY BATTERY AND MANUFACTURING METHOD THEREOF, AND A NONAQUEOUS ELECTROLYTE SECONDARY BATTERY THAT USES CATHODE ACTIVE MATERIAL - The present invention provides a cathode active material that makes possible a high capacity nonaqueous electrolyte secondary battery that has excellent discharge load characteristics that provide both good cycle characteristics and thermal stability. The cathode active material comprises a lithium nickel composite oxide having the compositional formula LiNi | 12-18-2008 |
20120270107 | NICKEL-COBALT-MANGANESE COMPLEX HYDROXIDE PARTICLES AND METHOD FOR PRODUCING SAME, POSITIVE ELECTRODE ACTIVE MATERIAL FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY AND METHOD FOR PRODUCING SAME, AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - An object of the present invention is to provide nickel cobalt manganese composite hydroxide particles having a small particle diameter and a uniform particle size distribution, and a method for producing the same. | 10-25-2012 |
20120276454 | NICKEL COMPLEX HYDROXIDE PARTICLES AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - Disclosed are: nickel complex hydroxide particles that have small and uniform particle diameters; and a method by which the nickel complex hydroxide particles can be produced. Specifically disclosed is a method for producing a nickel complex hydroxide by a crystallization reaction, which comprises: a nucleation step in which nucleation is carried out, while controlling an aqueous solution for nucleation containing an ammonium ion supplying material and a metal compound that contains nickel to have a pH of 12.0-13.4 at a liquid temperature of 25° C.; and a particle growth step in which nuclei are grown, while controlling an aqueous solution for particle growth containing the nuclei, which have been formed in the nucleation step, to have a pH of 10.5-12.0 at a liquid temperature of 25° C. In this connection, the pH in the particle growth step is controlled to be less than the pH in the nucleation step. | 11-01-2012 |
20120282525 | ACTIVE MATERIAL PARTICLES AND USE OF SAME - Active material particles are provided that exhibit performance suitable for increasing the output of a lithium secondary battery and little deterioration due to charge-discharge cycling. The active material particles provided by the present invention have a hollow structure having secondary particles including an aggregate of a plurality of primary particles of a lithium transition metal oxide, and a hollow portion formed inside the secondary particles, and through holes that penetrates to the hollow portion from the outside are formed in the secondary particles. BET specific surface area of the active material particles is 0.5 to 1.9 m | 11-08-2012 |
20130189581 | POSITIVE-ELECTRODE ACTIVE MATERIAL FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY AND METHOD FOR PRODUCING THE SAME, AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - The present invention provides a cathode active material for a nonaqueous electrolyte secondary battery with a high capacity, high stability and excellent output characteristics and a method for producing the same, and a nonaqueous electrolyte secondary battery using the cathode active material. | 07-25-2013 |
20130302687 | ACTIVE MATERIAL PARTICLES AND USE OF SAME - Active material particles are provided that exhibit performance suitable for increasing the output of a lithium secondary battery and little deterioration due to charge-discharge cycling. The active material particles provided by the present invention have a hollow structure having secondary particles including an aggregate of a plurality of primary particles of a lithium transition metal oxide, and a hollow portion formed inside the secondary particles, and through holes that penetrates to the hollow portion from the outside are formed in the secondary particles. BET specific surface area of the active material particles is 0.5 to 1.9 m | 11-14-2013 |
20130337331 | NICKEL COMPOSITE HYDROXIDE PARTICLES AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - To provide nickel composite hydroxide particles having a small and uniform particle diameter and a method for producing the same. | 12-19-2013 |