发明授权
- 专利标题: Non-aqueous electrolyte secondary battery
- 专利标题(中): 非水电解质二次电池
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申请号: US13059770申请日: 2009-08-04
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公开(公告)号: US08802299B2公开(公告)日: 2014-08-12
- 发明人: Hidekazu Yamamoto , Atsushi Fukui , Taizou Sunano , Maruo Kamino
- 申请人: Hidekazu Yamamoto , Atsushi Fukui , Taizou Sunano , Maruo Kamino
- 申请人地址: JP Moriguchi-shi
- 专利权人: SANYO Electric Co., Ltd.
- 当前专利权人: SANYO Electric Co., Ltd.
- 当前专利权人地址: JP Moriguchi-shi
- 代理机构: Westerman, Hattori, Daniels & Adrian, LLP
- 优先权: JP2008-211569 20080820; JP2009-077924 20090327
- 国际申请: PCT/JP2009/063772 WO 20090804
- 国际公布: WO2010/021236 WO 20100225
- 主分类号: H01M6/16
- IPC分类号: H01M6/16 ; H01M4/13 ; H01M4/62 ; H01M10/052 ; H01M4/134 ; H01M10/0567 ; H01M10/0569 ; H01M4/38
摘要:
The present invention is made to improve charge-discharge cycle performances under high temperature environment in a non-aqueous electrolyte secondary battery using a negative electrode containing a negative electrode active material of particulate silicon and/or silicon alloy and a binding agent.A non-aqueous electrolyte secondary battery according to the present invention includes a positive electrode 11, a negative electrode 12, a separator 13, and a non-aqueous electrolyte, wherein the negative electrode includes a negative electrode active material containing particulate silicon and/or silicon alloy and a binding agent, and the non-aqueous electrolyte contains fluorinated cyclic carbonate and a prescribed diisocyanate compound, and when Li storage volume per unit area of the negative electrode of the non-aqueous electrolyte secondary battery under charging condition is determined as A and the theoretical maximum Li storage volume per unit area of the negative electrode is determined as B, a utilizing rate (%) of negative electrode which is expressed by (A/B)×100 is 45% or less.
公开/授权文献
- US20110151338A1 NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY 公开/授权日:2011-06-23
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