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:
Mar. 22, 2006
Hidekazu Yamamoto, Kobe, JP;
Keiji Saisho, Kobe, JP;
Yoshio Kato, Hirakata, JP;
Shigeki Matsuta, Kobe, JP;
Hidekazu Yamamoto, Kobe, JP;
Keiji Saisho, Kobe, JP;
Yoshio Kato, Hirakata, JP;
Shigeki Matsuta, Kobe, JP;
Sanyo Electric Co., Ltd., Osaka, JP;
Abstract
Disclosed is a nonaqueous electrolyte secondary battery which has a negative electrode containing silicon as a negative active material, a positive electrode containing a positive active material, a nonaqueous electrolyte and a separator. Characteristically, an additive which retards oxidation of silicon during operation of the battery is contained either in an interior or surface portion of the positive electrode, or in an interior or surface portion of the negative electrode, or in an interior or surface portion of the separator.