Invention Grant
- Patent Title: Lithium secondary cell including an electrolytic solution including cyclic acid anhydrides
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Application No.: US14127145Application Date: 2012-06-22
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Publication No.: US09786952B2Publication Date: 2017-10-10
- Inventor: Masahiro Suguro , Midori Shimura
- Applicant: Masahiro Suguro , Midori Shimura
- Applicant Address: JP Tokyo
- Assignee: NEC CORPORATION
- Current Assignee: NEC CORPORATION
- Current Assignee Address: JP Tokyo
- Agency: McGinn IP Law Group, PLLC.
- Priority: JP2011-139722 20110623; JP2012-129054 20120606
- International Application: PCT/JP2012/065982 WO 20120622
- International Announcement: WO2012/176873 WO 20121227
- Main IPC: H01M10/0567
- IPC: H01M10/0567 ; H01M10/052 ; H01M10/0585

Abstract:
An object of the present invention is to provide a high-capacity, long-life lithium secondary cell suppressing a reduction in capacity particularly with respect to use under a high-temperature environment, and having improved cycle properties. The lithium secondary cell comprises a positive electrode active material layer containing a positive electrode active material, a negative electrode active material layer containing a silicon-based material as a negative electrode active material, and an electrolytic solution in which the positive electrode active material layer and the negative electrode active material layer are immersed, the electrolytic solution contains one or more of specific cyclic acid anhydrides.
Public/Granted literature
- US20140120415A1 LITHIUM SECONDARY CELL Public/Granted day:2014-05-01
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