Solution type binder as well as preparation method and application thereof

The invention discloses a solution type binder as well as a preparation method and application thereof. The adhesive comprises a vinyl polymer wherein the polymer comprises, as polymeric monomers, based on the total amount of vinyl polymer: a) from 2 wt% to 10 wt% of ethylene urea ethyoxyl (meth) acrylate; (b) from 10 wt% to 70 wt% of methoxy polyethoxy (meth) acrylate; (c) 20 wt%-50 wt% of at least one of an ethylenically unsaturated carboxylic acid and an ethylenically unsaturated carboxylic acid anhydride; and (d) 0%-68% by weight of an ethylenic bond type unsaturated nitrile monomer. The binder provided by the invention is applied to the field of lithium ion batteries, and can improve the dispersibility of negative electrode slurry and the processability of a pole piece. 本发明公开一种溶液型粘结剂及其制备方法和应用。所述粘结剂包含一种乙烯基聚合物，其中，以乙烯基聚合物的总量计，所述聚合物包含作为聚合单体的：a)2wt％-10wt％的(甲基)丙烯酸亚乙基脲乙氧基酯；(b)10wt％-70wt％的甲氧基聚乙氧基(甲基)丙烯酸酯；(c)20wt％-50wt％的烯键式不饱和羧酸、烯键式不饱和羧酸酐中的至少一种；(d)0％-68wt％的烯键式不饱和腈基单体。本发明提供的粘结剂应用于锂离子电池领域，可提高负极浆料的分散性及极片的加工性能。