Invention Grant
- Patent Title: Ester compound, and non-aqueous electrolyte solution and lithium secondary battery each using the ester compound
- Patent Title (中): 酯化合物和各自使用酯化合物的非水电解质溶液和锂二次电池
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Application No.: US12525207Application Date: 2008-02-01
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Publication No.: US08263268B2Publication Date: 2012-09-11
- Inventor: Koji Abe , Chisen Hashimoto
- Applicant: Koji Abe , Chisen Hashimoto
- Applicant Address: JP Ube-shi
- Assignee: UBE Industries, Ltd.
- Current Assignee: UBE Industries, Ltd.
- Current Assignee Address: JP Ube-shi
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2007-024236 20070202; JP2007-115135 20070425
- International Application: PCT/JP2008/051653 WO 20080201
- International Announcement: WO2008/093837 WO 20080807
- Main IPC: H01M6/16
- IPC: H01M6/16
Abstract:
The present invention includes (1) an ester compound having a specific structure, (2) a nonaqueous electrolytic solution for lithium secondary battery comprising an electrolyte dissolved in a nonaqueous solvent and containing an ester compound having a specific structure in an amount of from 0.01 to 10% by weight of the nonaqueous electrolytic solution, which is excellent in initial battery capacity and cycle property, and (3) a lithium secondary battery comprising a positive electrode, a negative electrode and a nonaqueous electrolytic solution of an electrolyte salt dissolved in a nonaqueous solvent, wherein the nonaqueous electrolytic solution contains an ester compound having a specific structure in an amount of from 0.01 to 10% by weight of the nonaqueous electrolytic solution.
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