Method and equipment for activating lithium ion battery

The invention is suitable for the field of battery manufacture and provides a method and equipment for activating a lithium ion battery. The method for activating the lithium ion battery comprises the steps of: preheating treatment, ultrasonic treatment and the like. According to the method for activating the lithium ion battery, provided by the invention, electrolyte is made permeate an electrode plate uniformly through the preheating treatment and the ultrasonic treatment, so that the consistency of the comprehensive performances of the battery is greatly increased; meanwhile, the activation treatment time is reduced, continuous production for the activation treatment of the battery is realized, and the production efficiency is obviously increased.