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:
Sep. 10, 2013
Filed:
Mar. 25, 2009
Hirotaka Hayashida, Fujisawa, JP;
Akira Yajima, Tokyo, JP;
Hirotaka Hayashida, Fujisawa, JP;
Akira Yajima, Tokyo, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
A nonaqueous electrolyte secondary battery includes an electrode assembly having a high-density positive electrode in which a positive electrode active material layer is formed on at least one surface of a positive electrode current collector, a high-density negative electrode in which a negative electrode active material layer is formed on at least one surface of a negative electrode current collector, and a separator interposed between the positive and negative electrodes, and has a structure in which the electrode assembly is impregnated with a nonaqueous electrolyte, wherein the specific surface area per unit area of the positive electrode active material layer of the positive electrode is 0.5 to 1.0 times the specific surface area per unit area of the negative electrode active material layer of the negative electrode which opposes the positive electrode with the separator sandwiched between them.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile