发明授权
US09593016B2 Method for producing difluorophosphate, non-aqueous electrolyte for secondary cell and non-aqueous electrolyte secondary cell
有权
二氟磷酸盐的制造方法，二次电池用非水电解质和非水电解质二次电池
- 专利标题： Method for producing difluorophosphate, non-aqueous electrolyte for secondary cell and non-aqueous electrolyte secondary cell
- 专利标题（中）： 二氟磷酸盐的制造方法，二次电池用非水电解质和非水电解质二次电池
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申请号： US13344742申请日： 2012-01-06
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公开(公告)号： US09593016B2公开(公告)日： 2017-03-14
- 发明人: Ryoichi Kato , Hirofumi Suzuki , Jun Sasahara , Hitoshi Suzuki
- 申请人： Ryoichi Kato , Hirofumi Suzuki , Jun Sasahara , Hitoshi Suzuki
- 申请人地址： JP Tokyo
- 专利权人： MITSUBISHI CHEMICAL CORPORATION
- 当前专利权人： MITSUBISHI CHEMICAL CORPORATION
- 当前专利权人地址： JP Tokyo
- 代理机构： Oblon, McClelland, Maier & Neustadt, L.L.P.
- 优先权： JP2005-178828 20050620
- 主分类号： H01M10/0525
- IPC分类号： H01M10/0525 ; H01M10/0567 ; H01M10/0568 ; H01M10/0569 ; C01B25/10 ; C01B25/455
摘要：
A difluorophosphate effective as an additive for a nonaqueous electrolyte for secondary battery is produced by a simple method from inexpensive common materials.The difluorophosphate is produced by reacting lithium hexafluorophosphate with a carbonate in a nonaqueous solvent. The liquid reaction mixture resulting from this reaction is supplied for providing the difluorophosphate in a nonaqueous electrolyte comprising a nonaqueous solvent which contains at least a hexafluorophosphate as an electrolyte lithium salt and further contains a difluorophosphate. Also provided is a nonaqueous-electrolyte secondary battery employing this nonaqueous electrolyte.
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