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:
Jul. 04, 2017
Filed:
Oct. 15, 2013
Toda Kogyo Corp., Hiroshima-shi, Hiroshima, JP;
Kazutoshi Ishizaki, Kitakyushu, JP;
Kazuhiko Kikuya, Sanyo Onoda, JP;
Takahiko Sugihara, Kitakyushu, JP;
Teruaki Santoki, Kitakyushu, JP;
Takamitsu Harada, Kitakyushu, JP;
Masaki Nishimura, Sanyo Onoda, JP;
Yuji Mishima, Sanyo Onoda, JP;
Hideaki Sadamura, Sanyo Onoda, JP;
TODA KOGYO CORP., Hiroshima, JP;
Abstract
The present invention relates to Li-Ni composite oxide particles that exhibit a high initial discharge capacity and are excellent in thermal stability when used as a positive electrode active substance for non-aqueous electrolyte secondary batteries, and a process for producing the Li-Nicomposite oxide particles. The Li-Ni composite oxide particles of the present invention have a composition of LiNiCoM1M2Owherein x, y, a and b represent 1.00≦x≦1.10; 0<y≦0.25; 0<a≦0.25; and 0≦b≦0.10, respectively; M1 is at least one element selected from the group consisting of Al and Mn; and M2 is at least one element selected from the group consisting of Zr and Mg, in which a product of a metal occupancy (%) of lithium sites of the Li-Ni composite oxide as determined by Rietveld analysis of X-ray diffraction thereof and a crystallite size (nm) of the Li-Ni composite oxide as determined by the Rietveld analysis is not less than 700 and not more than 1400.