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    • 19. 发明授权
    • Electrode binder for a lithium-ion secondary battery and method for manufacturing active material slurry using the same
    • 锂离子二次电池用电极粘合剂及其制造方法
    • US06294290B1
    • 2001-09-25
    • US09081835
    • 1998-05-19
    • You-Mee Kim
    • You-Mee Kim
    • H01M618
    • H01M4/621H01M10/0525
    • The present invention provides an electrode binder of a lithium-ion secondary battery. The binder includes at least two materials selected from a polyvinylidene fluoride polymer. The materials have the same chemical component as each other but different physical characteristic from each other. The materials are a homopolymer and a copolymer of the polyvinylidene fluoride polymer. The binder also includes at least two materials selected from a rubber polymer binder and a polyvinylidene fluoride polymer. The materials have the different chemical component as each other. A mixture ratio of the homopolymer and the copolymer are selected within a range of 50:50 to 95:5 wt %. It is preferable that the polyvinylidene fluoride and rubber polymer binder are mixed within a rate of 20:80 to 80:20 wt %.
    • 本发明提供一种锂离子二次电池的电极粘合剂。 粘合剂包括选自聚偏二氟乙烯聚合物中的至少两种材料。 这些材料具有彼此相同的化学成分,但彼此具有不同的物理特性。 该材料是聚偏二氟乙烯聚合物的均聚物和共聚物。 粘合剂还包括选自橡胶聚合物粘合剂和聚偏二氟乙烯聚合物中的至少两种材料。 这些材料具有彼此不同的化学成分。 均聚物和共聚物的混合比选择在50:50至95:5重量%的范围内。 优选将聚偏氟乙烯和橡胶聚合物粘合剂以20:80至80:20重量%的比例混合。