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. 08, 2003
Filed:
May. 12, 2000
Itaru Gosho, Itami, JP;
Ken Moriuchi, Itami, JP;
Kenichi Kizu, Itami, JP;
Toshihiro Zushi, Itami, JP;
Masahiro Kamauchi, Itami, JP;
Mitsuhiro Asano, Anjo, JP;
Kazuyuki Tateishi, Amagasaki, JP;
Mitsubishi Cable Industries, Ltd., Amagasaki, JP;
Abstract
The present invention relates to a positive electrode active material, a negative electrode active material and an electrolyte that are used alone or in combination to improve charge and discharge cycle characteristic, low temperature characteristic and safety of a non-aqueous electrolyic secondary battery, particularly a lithium ion secondary battery. Specifically, a particulate Li-transition metal composite oxide having an average particle size of not less than 10 &mgr;m, wherein [20/(specific surface area×average particle size)]=7-9, is used as a positive electrode active material.