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:
Nov. 26, 2013
Filed:
Oct. 21, 2010
Masashi Kobino, Yamaguchi-ken, JP;
Katsuhiro Fujita, Yamaguchi-ken, JP;
Shoichi Fujino, Yamaguchi-ken, JP;
Akihisa Kajiyama, Yamaguchi-ken, JP;
Ryuta Masaki, Yamaguchi-ken, JP;
Daisuke Morita, Yamaguchi-ken, JP;
Takayuki Yamamura, Yamaguchi-ken, JP;
Tetsuya Kodaira, Yamaguchi-ken, JP;
Minoru Yamasaki, Yamaguchi-ken, JP;
Seiji Okazaki, Hiroshima-ken, JP;
Toshiaki Hiramoto, Hiroshima-ken, JP;
Akino Sato, Hiroshima-ken, JP;
Wataru Oda, Hiroshima-ken, JP;
Kenji Okinaka, Yamaguchi-ken, JP;
Masashi Kobino, Yamaguchi-ken, JP;
Katsuhiro Fujita, Yamaguchi-ken, JP;
Shoichi Fujino, Yamaguchi-ken, JP;
Akihisa Kajiyama, Yamaguchi-ken, JP;
Ryuta Masaki, Yamaguchi-ken, JP;
Daisuke Morita, Yamaguchi-ken, JP;
Takayuki Yamamura, Yamaguchi-ken, JP;
Tetsuya Kodaira, Yamaguchi-ken, JP;
Minoru Yamasaki, Yamaguchi-ken, JP;
Seiji Okazaki, Hiroshima-ken, JP;
Toshiaki Hiramoto, Hiroshima-ken, JP;
Akino Sato, Hiroshima-ken, JP;
Wataru Oda, Hiroshima-ken, JP;
Kenji Okinaka, Yamaguchi-ken, JP;
Toda Kogyo Corporation, Otaki-Shi, Hiroshima-Ken, JP;
Abstract
The present invention relates to nickel-cobalt-manganese-based compound particles which have a volume-based average secondary particle diameter (D50) of 3.0 to 25.0 μm, wherein the volume-based average secondary particle diameter (D50) and a half value width (W) of the peak in volume-based particle size distribution of secondary particles thereof satisfy the relational formula: W≦0.4×D50, and can be produced by dropping a metal salt-containing solution and an alkali solution to an alkali solution at the same time, followed by subjecting the obtained reaction solution to neutralization and precipitation reaction. The nickel-cobalt-manganese-based compound particles according to the present invention have a uniform particle size, a less content of very fine particles, a high crystallinity and a large primary particle diameter, and therefore are useful as a precursor of a positive electrode active substance used in a non-aqueous electrolyte secondary battery.