ADDITIVE FOR NONAQUEOUS ELECTROLYTE, NONAQUEOUS ELECTROLYTE, AND ELECTRICITY STORAGE DEVICE
    1.
    发明申请
    ADDITIVE FOR NONAQUEOUS ELECTROLYTE, NONAQUEOUS ELECTROLYTE, AND ELECTRICITY STORAGE DEVICE 审中-公开
    非水电解质,非电解电解质和电力储存装置的添加剂

    公开(公告)号:US20140199601A1

    公开(公告)日:2014-07-17

    申请号:US14131132

    申请日:2012-07-06

    IPC分类号: H01G11/56 H01M10/0567

    摘要: The present invention aims to provide an additive for a non-aqueous electrolyte solution with excellent storage stability capable of forming a stable SEI on the surface of an electrode to improve cell performance such as a cycle performance, a discharge/charge capacity, and internal resistance, when the additive is used for electrical storage devices such as non-aqueous electrolyte solution secondary cells and electric double layer capacitors. The present invention also aims to provide a non-aqueous electrolyte solution containing the additive for a non-aqueous electrolyte solution and to provide an electrical storage device using the non-aqueous electrolyte solution. The present invention is an additive for a non-aqueous electrolyte solution, comprising a compound that has a structure represented by the formula (1-1) or (1-2): in which A represents CmH(2m-n)Zn, m being an integer of 1 to 6, n being an integer of 0 to 12, and Z representing a substituted or unsubstituted alkyl group, a silyl group, a phosphonic acid ester group, an acyl group, a cyano group, or a nitro group, the compound having a lowest unoccupied molecular orbital energy of −3.0 to 0.4 eV, a standard enthalpy of formation of −220 to −40 kcal/mol, and an enthalpy change with hydrolysis reaction of −5 to 5 kcal/mol.

    摘要翻译: 本发明的目的在于提供一种具有优异储存稳定性的非水电解质溶液添加剂,能够在电极表面上形成稳定的SEI,以提高电池性能,例如循环性能,放电/充电容量和内阻 当添加剂用于非水电解液二次电池和双电层电容器等蓄电装置时。 本发明还旨在提供一种含有非水电解质溶液用添加剂的非水电解质溶液,提供使用该非水电解液的蓄电装置。 本发明是一种非水电解液的添加剂,其包含具有式(1-1)或(1-2)所示结构的化合物:其中A表示CmH(2m-n)Zn,m 为1〜6的整数,n为0〜12的整数,Z为取代或未取代的烷基,甲硅烷基,膦酸酯基,酰基,氰基或硝基, 具有-3.0至0.4eV的最低未占分子轨道能量的化合物,-220至-40kcal / mol的标准焓变和-5至5kcal / mol的水解反应的焓变。