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    • 9. 发明申请
    • SEPARATOR COATED WITH POLYMER AND CONDUCTIVE SALT AND ELECTROCHEMICAL DEVICE USING THE SAME
    • 使用聚合物和导电盐和电化学装置的分离器
    • WO2014079861A1
    • 2014-05-30
    • PCT/EP2013/074250
    • 2013-11-20
    • SOLVAY SA
    • HAMON, ChristinePIERI, RiccardoCHEN, ShileiBRAIDA, Marc-DavidMOUSSET, Jean-Francois
    • H01M2/16H01M10/0525H01M2/14
    • H01M2/1686H01M2/145H01M2/1626H01M2/1653H01M10/0525
    • The present invention provides method for manufacturing a coated separator for use in an electrochemical device, comprising the steps of: (i) providing a separator having two surfaces; (ii) applying a coating composition [composition (C)] on at least one surface of the separator, the composition (C) comprising a polymer [polymer (P)] and at least one electrolyte salt [salt (E)] of formula (a), A + B - (a) wherein A + indicates an ion selected from alkaline metal cations or a combination thereof, and B" indicates an ion selected from anions or a combination thereof, so as to obtain a coating layer onto said surface; and (ii) drying the coating layer so as to obtain a coated separator, wherein the polymer (P) is a vinylidene fluoride (VdF) polymer and comprises recurring units derived from at least one comonomer (C), said comonomer (C) being different from vinylidene fluoride (VdF), and wherein the polymer (P) comprises recurring units derived from at least one (meth)acrylic monomer (MA). Further, the present provides a separator for use in an electrochemical device, said separator being coated on at least one surface thereof a coating comprising a polymer (P) and at least one salt (E) as described above, wherein said coating is characterized by: a dry thickness of from about 0.1 to 10 μm; a weight between 5 and 100 % of the weight of the un-coated separator; or being substantially solvent free. Moreover, the present invention provides a method for producing an electrochemical device using the coated separator as described above.
    • 本发明提供一种用于制造用于电化学装置的涂覆分离器的方法,包括以下步骤:(i)提供具有两个表面的分离器; (ii)将涂料组合物[组合物(C)]涂布在隔膜的至少一个表面上,包含聚合物[聚合物(P)]和至少一种式(I)的电解质盐[盐(E) (a)中,A + B-(a)其中A +表示选自碱金属阳离子或其组合的离子,B“表示选自阴离子或其组合的离子,从而在所述表面上获得涂层 ;(ii)干燥所述涂层以获得涂覆的隔膜,其中所述聚合物(P)是偏二氟乙烯(VdF)聚合物,并且包含衍生自至少一种共聚单体(C)的重复单元,所述共聚单体(C) 与偏二氟乙烯(VdF)不同,其中聚合物(P)包含衍生自至少一种(甲基)丙烯酸单体(MA)的重复单元,此外,本发明提供一种用于电化学装置的隔膜,所述隔膜为 在其至少一个表面上涂覆包含聚合物(P)和至少包含聚合物(P)的涂层 一种如上所述的盐(E),其中所述涂层的特征在于:干厚度为约0.1至10μm; 重量在未涂覆分离器重量的5至100%之间; 或基本上无溶剂。 此外,本发明提供一种如上所述的使用涂覆隔板的电化学装置的制造方法。