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:
Jan. 05, 2010
Filed:
Aug. 06, 2007
Shusuke Inada, Minato-ku, JP;
Masahiro Sekino, Minato-ku, JP;
Akira Yajima, Minato-ku, JP;
Nao Shimura, Minato-ku, JP;
Asako Satoh, Minato-ku, JP;
Masayuki Oguchi, Minato-ku, JP;
Hiroshi Kitayama, Minato-ku, JP;
Shusuke Inada, Minato-ku, JP;
Masahiro Sekino, Minato-ku, JP;
Akira Yajima, Minato-ku, JP;
Nao Shimura, Minato-ku, JP;
Asako Satoh, Minato-ku, JP;
Masayuki Oguchi, Minato-ku, JP;
Hiroshi Kitayama, Minato-ku, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
A nonaqueous electrolyte secondary battery includes an electrode group having a positive electrode and a negative electrode wound flatly by way of an interposed separator, a positive electrode tab electrically connected to the positive electrode, and projecting from a spiral winding surface of the electrode group, a negative electrode tab electrically connected to the negative electrode, and projecting from the spiral winding surface, and a nonaqueous electrolyte, wherein the nonaqueous solvent contains sultone compound including a ring having at least one double bond, and a distance between the positive electrode tab and the negative electrode tab is 6 mm to 18 mm.