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:
Apr. 28, 2006
Takanori Itou, Hiratsuka, JP;
Hideaki Horie, Yokosuka, JP;
Takamitsu Saito, Yokohama, JP;
Satoshi Matsumoto, Niihama, JP;
Takanori Itou, Hiratsuka, JP;
Hideaki Horie, Yokosuka, JP;
Takamitsu Saito, Yokohama, JP;
Satoshi Matsumoto, Niihama, JP;
Nissan Motor Co., Ltd., Kanagawa, JP;
Sumitomo Metal Mining Co., Ltd., Tokyo, JP;
Abstract
An object of the present invention is to provide a positive electrode material for non-aqueous electrolyte lithium-ion battery which capable of discharging high output power and inhibiting cracking of secondary particle in the cyclic endurance at a high temperature. The above object can be attained by a positive electrode material for non-aqueous electrolyte lithium-ion battery of the present invention, characterized in that said material comprises secondary particles composed of primary particles of lithium nickel composite oxide containing the primary particles having different aspect ratios, and that at least a part of said primary particles having different aspect ratios are arranged so as to make the longitudinal direction (the long side direction) thereof oriented toward the center of the secondary particle.