NEGATIVE ELECTRODE BINDER, AND PREPARATION METHOD THEREOF AND APPLICATION THEREOF

The present application provides a negative electrode binder and a preparation method thereof and an application thereof. Raw materials for preparing the negative electrode binder include a soft monomer, a hard monomer, a urethane bond-containing acrylate monomer, an emulsifier, an initiator and water; and the urethane bond-containing acrylate monomer is prepared by a reaction of a small molecule diol monomethyl ether and a diisocyanate, and followed by end-capping with an acrylate containing a terminal hydroxyl group. The negative electrode binder has characteristics such as high bonding performance, good flexibility, resistance to electrolyte swelling and high temperature stability.