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:
Oct. 07, 2014
Filed:
Sep. 04, 2006
Masaharu Itaya, Kyoto, JP;
Hideyuki Koga, Bordeaux, FR;
Kumiko Kanai, Osaka, JP;
Takao Inoue, Aichi, JP;
Masahisa Fujimoto, Osaka, JP;
Masaharu Itaya, Kyoto, JP;
Hideyuki Koga, Bordeaux, FR;
Kumiko Kanai, Osaka, JP;
Takao Inoue, Aichi, JP;
Masahisa Fujimoto, Osaka, JP;
C/O Intellectual Property H.Q., Sanyo Electric Co., Ltd., Moriguchi-chi, JP;
Abstract
An object of the invention is to provide an inexpensive non-aqueous electrolyte secondary battery that allows reversible charge and discharge to be carried out and can be used for a long period because of a stable non-aqueous electrolyte used therein. The invention provides a non-aqueous electrolyte secondary battery including a positive electrode including a positive electrode active material and capable of storing and releasing sodium, a negative electrode capable of storing and releasing sodium, and a non-aqueous electrolyte, and the positive electrode active material includes sodium, nickel, manganese, and a transition metal that can exist in a hexavalent state. An example of the transition metal that can exist in a hexavalent state may include tungsten (W). An example of the negative electrode may include a sodium metal capable of storing and releasing sodium ions.