ACRYLONITRILE COPOLYMER BINDER AND APPLICATION THEREOF IN LITHIUM ION BATTERIES

    公开(公告)号:US20210189037A1

    公开(公告)日:2021-06-24

    申请号:US16326597

    申请日:2016-12-09

    Abstract: An acrylonitrile copolymer binder and application thereof in lithium ion battery. The technical problem to be solved is to provide an acrylonitrile copolymer binder including the following structural units in percentage by weight: 78-95% of acrylonitrile unit, 1-10% of acrylic ester unit and 2-15% of acrylamide unit. For the binder, acrylonitrile monomer is taken as the main body, and acrylic ester monomer, acrylamide monomer or acrylate monomer with strong polarity is added to acrylonitrile for copolymerization to enable the flexibility of a polymer membrane, the affinity of an electrolyte and the proper swelling degree in the electrolyte while keeping strong adhesion or intermolecular force of acrylonitrile polymer molecules, so as to fit the periodic volume changes of electrode active materials along with lithium ion intercalation/deintercalation in charging and discharging processes, thereby improving the energy density and cycle performance of the lithium ion battery.

    Methods for manufacturing amino acid mimetic copolymers and use of same
    77.
    发明授权
    Methods for manufacturing amino acid mimetic copolymers and use of same 失效
    制备氨基酸模拟共聚物的方法及其用途

    公开(公告)号:US07622537B2

    公开(公告)日:2009-11-24

    申请号:US11942696

    申请日:2007-11-19

    Inventor: Stephen Pacetti

    Abstract: Biocompatible polymers are manufactured to include an amino acid mimetic monomer and one or more hydrophobic acrylate monomers. The amino acid mimetic monomers are selected to mimic the side chain of the amino acids asparagine or glutamine. The amino acid mimetic monomer can be a methacryloyl or acryloyl derivative of 2-hydroxyacetamide, 3-hydroxypropionamide, alaninamide, lactamide, or glycinamide. These amide functional groups offer the advantage of moderate hydrophilicity with little chemical reactivity. The amino acid mimetic monomer can be copolymerized with one or more hydrophobic acrylate monomers to obtain desired coating properties.

    Abstract translation: 制造生物相容性聚合物以包括氨基酸模拟单体和一种或多种疏水丙烯酸酯单体。 选择氨基酸模拟单体以模拟氨基酸天冬酰胺或谷氨酰胺的侧链。 氨基酸模拟单体可以是2-羟基乙酰胺,3-羟基丙酰胺,丙烯酰胺,乳酰胺或甘氨酰胺的甲基丙烯酰基或丙烯酰基衍生物。 这些酰胺官能团具有中等的亲水性,几乎没有化学反应性的优点。 氨基酸模拟单体可以与一种或多种疏水丙烯酸酯单体共聚以获得所需的涂料性质。

    Process for making a high nitrile multipolymer prepared from
acrylonitrile and olefinically unsaturated monomers
    78.
    发明授权
    Process for making a high nitrile multipolymer prepared from acrylonitrile and olefinically unsaturated monomers 失效
    制备由丙烯腈和烯属不饱和单体制备的高腈共聚物的方法

    公开(公告)号:US5618901A

    公开(公告)日:1997-04-08

    申请号:US387303

    申请日:1995-02-27

    CPC classification number: C08F220/44

    Abstract: A homogeneous, high nitrile melt processable acrylonitrile olefinically unsaturated multipolymer and a process for making the multipolymer, comprising polymerizing a mixture of acrylonitrile monomer and one or more olefinically unsaturated monomers, in which the rate of addition of the multimonomer mixture is set by the rate of polymerization so that the concentration of unreacted acrylonitrile monomers and unreacted olefinically unsaturated monomer(s) is low and the polymerization process is in a monomer starved condition.

    Abstract translation: 均匀的高腈可熔融加工的丙烯腈烯属不饱和多聚物和制备多聚物的方法,包括聚合丙烯腈单体和一种或多种烯属不饱和单体的混合物,其中多单体混合物的加入速率由 使未反应的丙烯腈单体和未反应的烯属不饱和单体的浓度低,聚合过程处于单体缺乏状态。

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