Invention Grant
- Patent Title: Secondary battery
- Patent Title (中): 二次电池
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Application No.: US13820451Application Date: 2011-06-23
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Publication No.: US09466827B2Publication Date: 2016-10-11
- Inventor: Midori Shimura , Daisuke Kawasaki , Masahiro Suguro , Yoko Hashizume , Kazuaki Matsumoto
- Applicant: Midori Shimura , Daisuke Kawasaki , Masahiro Suguro , Yoko Hashizume , Kazuaki Matsumoto
- Applicant Address: JP Tokyo
- Assignee: NEC CORPORATION
- Current Assignee: NEC CORPORATION
- Current Assignee Address: JP Tokyo
- Agency: Sughrue Mion, PLLC
- Priority: JP2010-196620 20100902
- International Application: PCT/JP2011/064406 WO 20110623
- International Announcement: WO2012/029386 WO 20120308
- Main IPC: H01M4/134
- IPC: H01M4/134 ; H01M4/1393 ; H01M4/133 ; H01M2/02 ; H01M4/505 ; H01M4/525 ; H01M4/62 ; H01M10/0525 ; H01M10/0567 ; H01M10/0568 ; H01M10/0569 ; H01M10/0585

Abstract:
An object of the present invention is to provide a secondary battery in which the decomposition of an electrolyte liquid is suppressed and the generation of a gas is reduced, even in the case of using a laminate film as a package. The present exemplary embodiment is a secondary battery of a stacked laminate type comprising an electrode assembly in which a positive electrode and a negative electrode are arranged to face each other, an electrolyte liquid, and a package accommodating the electrode assembly and the electrolyte liquid, wherein the negative electrode is made by binding a negative electrode active substance containing a metal (a) capable of being alloyed with lithium, a metal oxide (b) capable of occluding and releasing lithium ions, and a carbon material (c) capable of occluding and releasing lithium ions, to a negative electrode current collector, with at least one selected from polyimides and polyamideimides; and the electrolyte liquid comprises acrylonitrile or an acrylonitrile compound being an acrylonitrile derivative.
Public/Granted literature
- US20130164605A1 SECONDARY BATTERY Public/Granted day:2013-06-27
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