Rapid evaluation method for dynamic performance of negative electrode binder for lithium ion battery

The invention discloses a method for rapidly evaluating the dynamic performance of a negative electrode binder for a lithium ion battery, which comprises the following steps: coating a current collector with a binder emulsion, drying to obtain a current collector coating sheet with the thickness of 20-60 microns, putting the current collector coating sheet as a negative electrode into an electrolyte, and obtaining the dynamic performance of the negative electrode binder for the lithium ion battery at the temperature of 45-80 DEG C for 6-24 hours. And recording the chemical produced gas and the thickness change thereof on the current collector coating sheet, assembling the current collector coating sheet into a soft package battery, and testing the impedance by using an electrochemical impedance method. The dynamic performance of the negative electrode binder for the lithium ion battery is analyzed by evaluating the dynamic performance of the binder, a rapid evaluation method is provided for screening and eval