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. 28, 2002
Filed:
Aug. 23, 2000
Applicant:
Inventors:
Yoshimi Kanno, Chiba, JP;
Shunji Watanabe, Chiba, JP;
Hideharu Onodera, Chiba, JP;
Shinichi Takasugi, Chiba, JP;
Tsugio Sakai, Chiba, JP;
Assignee:
Seiko Instruments Inc., , JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 4/02 ; H01M 4/40 ; H01M 4/48 ;
U.S. Cl.
CPC ...
H01M 4/02 ; H01M 4/40 ; H01M 4/48 ;
Abstract
Provided is a non-aqueous electrolyte secondary battery capable of ensuring good characteristics even in case of low-voltage charge at 2.5 V or so. A composite oxide of a compositional formula, Li Cu Ti O (with 0<a≦1, 0<b≦0.5, 1.5≦c<2) serving as a positive or negative electrode active material is mixed with an electroconductive agent and a binder, and shaped under pressure into electrodes for the battery.