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:
Apr. 26, 2016
Filed:
Jul. 28, 2010
Satoshi Matsumoto, Niihama, JP;
Isao Abe, Niihama, JP;
Yutaka Kawatate, Kadoma, JP;
Norihiro Yamamoto, Kadoma, JP;
Shinji Arimoto, Kadoma, JP;
Satoshi Matsumoto, Niihama, JP;
Isao Abe, Niihama, JP;
Yutaka Kawatate, Kadoma, JP;
Norihiro Yamamoto, Kadoma, JP;
Shinji Arimoto, Kadoma, JP;
SUMITOMO METAL MINING CO., LTD., Tokyo, JP;
PANASONIC CORPORATION, Kadoma-shi, JP;
Abstract
A lithium nickel composite oxide, having small inner resistance, large battery capacity and high thermal stability, can be used as a positive electrode active material for a non-aqueous electrolyte secondary battery. The positive electrode active material is composed of the lithium nickel composite oxide of LiNiMO(wherein M represents at least one element selected from a transition metal element other than Ni, the second group element and the thirteenth group element; a satisfies 0.01≦a≦0.5; and b satisfies 0.9≦b≦1.1). This is obtained by filtering and drying the fired powder after water washing, wherein it is dried at 90° C. or lower, till moisture is reduced to 1% or less by mass in drying, and then at 120° C., and under gas atmosphere where content of compound components containing carbon is 0.01% or less by volume, or under vacuum atmosphere.