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. 05, 2015
Filed:
Oct. 17, 2008
Tomoyoshi Ueki, Toyota, JP;
Yutaka Oyama, Toyota, JP;
Takuichi Arai, Toyota, JP;
Kazuhiro Ohkawa, Toyota, JP;
Koichi Yokoyama, Toyota, JP;
Ryuichi Kuzuo, Niihama, JP;
Katsuya Kase, Niihama, JP;
Syuhei Oda, Niihama, JP;
Tomoyoshi Ueki, Toyota, JP;
Yutaka Oyama, Toyota, JP;
Takuichi Arai, Toyota, JP;
Kazuhiro Ohkawa, Toyota, JP;
Koichi Yokoyama, Toyota, JP;
Ryuichi Kuzuo, Niihama, JP;
Katsuya Kase, Niihama, JP;
Syuhei Oda, Niihama, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi-ken, JP;
Sumitomo Metal Mining Co., Ltd., Tokyo, JP;
Abstract
Disclosed is a nonaqueous secondary battery () comprising a positive electrode () having a positive current collector () made of a metal, and a positive electrode active material () composed of a lithium-metal complex oxide. The surface of the positive electrode active material () is coated with a lithium salt () having an average thickness of 20-50 nm.