发明授权
- 专利标题： Nonaqueous electrolyte secondary battery and nonaqueous electrolytic solution for nonaqueous electrolyte secondary battery
- 专利标题（中）： 非水电解质二次电池和非水电解质二次电池用非水电解液
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申请号： US13103232申请日： 2011-05-09
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公开(公告)号： US08927158B2公开(公告)日： 2015-01-06
- 发明人: Hidekazu Yamamoto , Kouhei Tuduki , Taizou Sunano , Maruo Kamino , Youichi Ohashi , Minoru Kotato
- 申请人： Hidekazu Yamamoto , Kouhei Tuduki , Taizou Sunano , Maruo Kamino , Youichi Ohashi , Minoru Kotato
- 申请人地址： JP Moriguchi-shi JP Tokyo
- 专利权人： SANYO Electric Co., Ltd.,Mitsubishi Chemical Corporation
- 当前专利权人： SANYO Electric Co., Ltd.,Mitsubishi Chemical Corporation
- 当前专利权人地址： JP Moriguchi-shi JP Tokyo
- 代理机构： Westerman, Hattori, Daniels & Adrian, LLP
- 优先权： JP2010-108224 20100510
- 主分类号： H01M6/18
- IPC分类号： H01M6/18 ; H01M4/134 ; H01M10/0567 ; H01M10/0568 ; H01M10/0569
摘要：
A nonaqueous electrolyte secondary battery includes a positive electrode having a positive-electrode active material, a negative electrode having a negative-electrode active material, and a nonaqueous electrolytic solution having a nonaqueous solvent dissolving a solute. The negative-electrode active material includes powdered silicon and/or a silicon alloy, the nonaqueous electrolytic solution includes additives composed of at least one fluorinated lithium phosphate selected from the group consisting of lithium monofluorophosphate, lithium difluorophosphate, and lithium trifluorophosphate and a diisocyanate compound, and the nonaqueous solvent includes a chain carbonate compound.