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:
Jun. 25, 2013
Filed:
Jan. 23, 2008
Mitsuhiro Takeno, Osaka, JP;
Hideki Sano, Osaka, JP;
Akira Iguchi, Osaka, JP;
Panasonic Corporation, Osaka, JP;
Abstract
The method for producing a non-aqueous electrolyte secondary battery of the invention includes: (a) a step of preparing an electrode mixture slurry, (b) an ionization step of oxidizing and ionizing a metal impurity present in the electrode mixture slurry, and (c) a step of producing an electrode by using the electrode mixture slurry after the ionization step. In the invention, when the electrode mixture is in the form of a slurry, the metal impurity contained in the electrode mixture is ionized to minimize the amount of the impurity. Therefore, the invention can provide a highly reliable non-aqueous electrolyte secondary battery while minimizing a decrease in production yield by the metal impurity.