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. 02, 2017
Filed:
Mar. 13, 2012
Manabu Takijiri, Hyogo, JP;
Masanobu Takeuchi, Hyogo, JP;
Yoshinori Kida, Hyogo, JP;
SANYO Electric Co., Ltd., Daito-shi, Osaka, JP;
Abstract
Provided is a nonaqueous electrolyte secondary battery with improved high-rate discharge characteristics. The nonaqueous electrolyte secondary battery includes a positive electrode including a metal foil and a positive electrode active material layer formed thereon; a negative electrode containing a negative electrode active material; and a nonaqueous electrolyte containing a nonaqueous solvent and a solute dissolved therein. The metal foil of the positive electrode is an aluminum foil having an at least partially roughened surface adjacent to the positive electrode active material layer. The positive electrode includes a conductive layer containing a conductor and a binder in recesses in the at least partially roughened surface of the aluminum foil. The positive electrode active material layer is disposed on the conductive layer and contains a positive electrode active material, the conductor, and the binder.