Method for producing lithium difluorobis (oxalato) phosphate solution
    2.
    发明授权
    Method for producing lithium difluorobis (oxalato) phosphate solution 有权
    生产二氟双(草酸)磷酸锂溶液的方法

    公开(公告)号:US08088518B2

    公开(公告)日:2012-01-03

    申请号:US13121586

    申请日:2009-12-14

    IPC分类号: H01M6/16

    摘要: Disclosed is a method for producing a lithium difluorobis(oxalato)phosphate solution, which is characterized by that lithium hexafluorophosphate and oxalic acid are mixed together in a nonaqueous solvent, in a manner that the molar ratio of lithium hexafluorophosphate to oxalic acid falls within a range of 1:1.90 to 1:2.10, and furthermore silicon tetrachloride is added to this, in a manner that the molar ratio of lithium hexafluorophosphate to silicon tetrachloride falls within a range of 1:0.95 to 1:1.10, thereby conducting a reaction. The lithium difluorobis(oxalato)phosphate solution produced by this method has low contents of chlorine compounds and free acids. Therefore, it can become an additive that is effective for improving performance of nonaqueous electrolyte batteries.

    摘要翻译: 本发明公开了一种二氟双(草酸)磷酸锂溶液的制造方法,其特征在于,将六氟磷酸锂和草酸在非水溶剂中混合,使得六氟磷酸锂与草酸的摩尔比落在一定范围内 为1:1.90〜1:2.10,此外加入四氯化硅,使得六氟磷酸锂与四氯化硅的摩尔比在1:0.95-1:1.10的范围内,从而进行反应。 通过该方法制备的二氟双(磷酸二锂)磷酸盐溶液具有低含量的氯化合物和游离酸。 因此,可以成为对提高非水电解质电池的性能有效的添加剂。

    Method for Producing Lithium Difluorobis (Oxalato) Phosphate Solution
    3.
    发明申请
    Method for Producing Lithium Difluorobis (Oxalato) Phosphate Solution 有权
    生产磷酸二氢锂(Oxalato)磷酸盐溶液的方法

    公开(公告)号:US20110183219A1

    公开(公告)日:2011-07-28

    申请号:US13121586

    申请日:2009-12-14

    IPC分类号: H01M6/14 H01M6/16

    摘要: Disclosed is a method for producing a lithium difluorobis(oxalato)phosphate solution, which is characterized by that lithium hexafluorophosphate and oxalic acid are mixed together in a nonaqueous solvent, in a manner that the molar ratio of lithium hexafluorophosphate to oxalic acid falls within a range of 1:1.90 to 1:2.10, and furthermore silicon tetrachloride is added to this, in a manner that the molar ratio of lithium hexafluorophosphate to silicon tetrachloride falls within a range of 1:0.95 to 1:1.10, thereby conducting a reaction. The lithium difluorobis(oxalato)phosphate solution produced by this method has low contents of chlorine compounds and free acids. Therefore, it can become an additive that is effective for improving performance of nonaqueous electrolyte batteries.

    摘要翻译: 本发明公开了一种二氟双(草酸)磷酸锂溶液的制造方法,其特征在于,将六氟磷酸锂和草酸在非水溶剂中混合,使得六氟磷酸锂与草酸的摩尔比落在一定范围内 为1:1.90〜1:2.10,此外加入四氯化硅,使得六氟磷酸锂与四氯化硅的摩尔比在1:0.95-1:1.10的范围内,从而进行反应。 通过该方法制备的二氟双(磷酸二锂)磷酸盐溶液具有低含量的氯化合物和游离酸。 因此,可以成为对提高非水电解质电池的性能有效的添加剂。