Invention Grant
- Patent Title: Nonaqueous electrolyte secondary battery
- Patent Title (中): 非水电解质二次电池
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Application No.: US11834451Application Date: 2007-08-06
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Publication No.: US07642015B2Publication Date: 2010-01-05
- Inventor: Shusuke Inada , Masahiro Sekino , Akira Yajima , Nao Shimura , Asako Satoh , Masayuki Oguchi , Hiroshi Kitayama
- Applicant: Shusuke Inada , Masahiro Sekino , Akira Yajima , Nao Shimura , Asako Satoh , Masayuki Oguchi , Hiroshi Kitayama
- Applicant Address: JP Tokyo
- Assignee: Kabushiki Kaisha Toshiba
- Current Assignee: Kabushiki Kaisha Toshiba
- Current Assignee Address: JP Tokyo
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2002-216957 20020725; JP2002-216958 20020725
- Main IPC: H01M6/16
- IPC: H01M6/16

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.
Public/Granted literature
- US20080176143A1 NONAQUEOUS ELECTROLYTE SECONDARY BATTERY Public/Granted day:2008-07-24
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