Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Masayuki Oguchi0
Nao Shimura0
Shusuke Inada0
Akira Yajima0
Asako Satoh0
Hiroshi Kitayama0
Masahiro Sekino0
Date of Patent
August 28, 2007
0Patent Application Number
110417000
Date Filed
January 25, 2005
0Patent Primary Examiner
Patent 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.
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