Flexible cathodes
    2.
    发明授权
    Flexible cathodes 有权
    柔性阴极

    公开(公告)号:US08142918B2

    公开(公告)日:2012-03-27

    申请号:US13150538

    申请日:2011-06-01

    IPC分类号: H01M4/58 H01M4/62 H01M6/16

    摘要: This disclosure relates to methods of making a cathode for a lithium battery. The batteries include: (a) treating a cathode current collector with flame or corona; (b) coating a slurry containing iron disulfide, a first solvent, and a binder onto the cathode current collector obtained from step (a) to form a coated cathode current collector, in which the slurry contains about 73-75% by weight solids and the binder contains a polymer selected from the group consisting of linear di- and tri-block copolymers, linear tri-block copolymers cross-linked with melamine resin, ethylene-propylene copolymers, ethylene-propylene-diene terpolymers, tri-block fluorinated thermoplastics, hydrogenated nitrile rubbers, fluoro-ethylene-vinyl ether copolymers, thermoplastic polyurethanes, thermoplastic olefins, and polyvinylidene fluoride homopolymers; and (c) drying the coated cathode current collector obtained from step (b) to provide a cathode, in which the cathode contains no more than 0.5% by volume of the first solvent and is capable of being bent to 180°. This disclosure also relates to methods of making a lithium battery.

    摘要翻译: 本公开涉及制备用于锂电池的阴极的方法。 电池包括:(a)用火焰或电晕处理阴极集电器; (b)将含有二硫化铁,第一溶剂和粘合剂的浆料涂布到由步骤(a)获得的阴极集流器上,以形成涂覆的阴极集电器,其中浆料含有约73-75重量%的固体, 粘合剂含有选自直链二嵌段和三嵌段共聚物,与三聚氰胺树脂交联的直链三嵌段共聚物,乙烯 - 丙烯共聚物,乙烯 - 丙烯 - 二烯三元共聚物,三嵌段氟化热塑性塑料, 氢化丁腈橡胶,氟乙烯 - 乙烯基醚共聚物,热塑性聚氨酯,热塑性烯烃和聚偏氟乙烯均聚物; 和(c)将由步骤(b)获得的涂覆的阴极集电体干燥以提供阴极,其中阴极含有不超过0.5体积%的第一溶剂并且能够弯曲至180°。 本公开还涉及制造锂电池的方法。