Method for Producing Tetrafluoro(Oxalate)phosphate Solution
    9.
    发明申请
    Method for Producing Tetrafluoro(Oxalate)phosphate Solution 审中-公开
    生产四氟(草酸)磷酸盐溶液的方法

    公开(公告)号:US20150111098A1

    公开(公告)日:2015-04-23

    申请号:US14403349

    申请日:2013-05-29

    Abstract: The present invention provides a method of safely producing a solution containing a tetrafluoro(oxalate)phosphate in which the amounts of chlorine compounds and free acids are low such that crystallization refinement is not required in a post-process. The method produces a tetrafluoro(oxalate)phosphate solution by mixing a tetrafluoro(oxalate)phosphate with oxalic acid in a non-aqueous solvent and then adding silicon tetrachloride to the resulting mixture solution for reaction. In the reaction, the addition ratio of the hexafluorophosphate, oxalic acid, and silicon tetrachloride is controlled such that the amount of the hexafluorophosphate is 1.90 moles or more and the amount of the oxalic acid is 1.90 to 2.10 moles, based on 1 mole of the silicon tetrachloride.

    Abstract translation: 本发明提供一种安全地生产含有四氯(草酸)磷酸酯的溶液的方法,其中氯化合物和游离酸的量低,使得在后期处理中不需要结晶精制。 该方法通过在无水溶剂中将四氟(草酸)磷酸酯与草酸混合,然后向得到的混合溶液中加入四氯化硅反应生成四氟(草酸)磷酸盐溶液。 在该反应中,控制六氟磷酸盐,草酸和四氯化硅的添加比例,使得六氟磷酸盐的量为1.90摩尔以上,草酸的量为1.90〜2.10摩尔,以1摩尔 四氯化硅。

    Nonaqueous electrolyte solution, nonaqueous electrolyte battery and compound

    公开(公告)号:US12206073B2

    公开(公告)日:2025-01-21

    申请号:US17629085

    申请日:2020-07-22

    Abstract: The present invention provides: a nonaqueous electrolyte solution which is used in a nonaqueous electrolyte battery having a low initial resistance value; and a compound which is contained in this nonaqueous electrolyte solution. A nonaqueous electrolyte solution according to the present invention contains a compound represented by formula (1), a solute and a nonaqueous organic solvent. In general formula (1), each of R1 and R2 represents PO(Rf)2 or SO2Rf, and Rf represents, for example, a fluorine atom; each of R3 and R4 represents, for example, a lithium ion, or alternatively R3 and R4 may form a ring structure together with a nitrogen atom to which the moieties are bonded, and in this case, R3 and R4 form an alkylene group in combination with each other; an oxygen atom may be contained between carbon atom-carbon atom bonds in the alkylene group; a side chain thereof may have an alkyl group; and an arbitrary hydrogen atom in the alkyl group and the alkylene group may be substituted by a fluorine atom.

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