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. 12, 2011
Filed:
Aug. 14, 2006
Teruaki Yamamoto, Osaka, JP;
Tomohiro Ueda, Nara, JP;
Shinichi Waki, Osaka, JP;
Youko Sano, Osaka, JP;
Yasuhiko Bito, Osaka, JP;
Teruaki Yamamoto, Osaka, JP;
Tomohiro Ueda, Nara, JP;
Shinichi Waki, Osaka, JP;
Youko Sano, Osaka, JP;
Yasuhiko Bito, Osaka, JP;
Panasonic Corporation, Osaka, JP;
Abstract
A non-aqueous electrolyte secondary battery including a positive electrode, a negative electrode, and a non-aqueous electrolyte. The positive electrode includes a positive electrode active material that comprises a lithium-containing manganese oxide, and the negative electrode includes a negative electrode active material that comprises silicon and a transition metal element. When the battery voltage is 0 V, the positive electrode and the negative electrode have a potential of 1.8 V or higher relative to lithium metal (Li/Li). Since the deterioration of the positive and negative electrode active materials is suppressed, this non-aqueous electrolyte secondary battery has both high capacity and excellent deep discharge cycle life.