| abstract |
The present invention discloses an aqueous binder, which is a binder by performing front block copolymerization by mixing a functional monomer containing carboxyl, a vinyl acetate monomer, and an acrylate monomer under the action of a protective colloid. Forming a front block (1); (2) forming a binder intermediate block by completing the front block polymer reaction and performing intermediate block polymerization by adding a vinyl acetate monomer; And the intermediate block polymerization is completed, first dropping a pre-emulsion formed of a functional monomer containing carboxyl, a vinyl acetate monomer, and an acrylate monomer, and reacting completely to form a binder rear block ( Includes 3). The binder can be used in a slurry manufacturing and coating process in a high-basic environment, and can be applied to a ternary material of a lithium ion battery to stabilize or adjust the pH value of a lithium ion battery ternary material slurry. |