The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 20, 2014
Filed:
Feb. 08, 2013
Yayoi Katsu, Nagaokakyo, JP;
Takashi Takagi, Nagaokakyo, JP;
Yayoi Katsu, Nagaokakyo, JP;
Takashi Takagi, Nagaokakyo, JP;
Murata Manufacturing Co., Ltd., Nagaokakyo-shi, Kyoto-fu, JP;
Abstract
An electrode active material that contains a lithium-nickel-manganese-cobalt composite oxide having a hexagonal, layered rock-salt type crystal structure that belongs to the space group R3m. The lithium-nickel-manganese-cobalt composite oxide is represented by the general formula Li[NiMnCo]O(wherein α satisfies 0.1<α<0.3, and x, y, and z satisfy x+y+z=1, 0.075<z<0.250, and 0.50<x/y<0.90). In the powder X-ray diffraction analysis of a powder of the lithium-nickel-manganese-cobalt composite oxide using a CuKα ray, the peak intensity ratio (A/B) of the diffraction peak intensity (A) observed near 2θ=18.6±0.2° to the diffraction peak intensity (B) observed near 2θ=44.3±1.0° is more than 0 and less than 1.0.
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