The invention discloses a method for preparing 
electric field activation type super capacitors. According to the method, 
electrode active material is respectively mixed with 
adhesive and conductive agent evenly, 
graphite-like material 
electrode pieces are manufactured on the surface of a 
metal collector 
electrode by utilization of the mixture, the manufactured 
graphite-like electrode pieces are used as positive electrodes and negative electrodes of electrodes of the capacitors, separating membranes are adopted to separate the electrodes, 
ionic liquid with molecular weight equal to or smaller than 500 is used as 
electrolyte to assemble the capacitors, 
electric field activation is performed, and the 
electric field activation type super capacitors are manufactured. A potential window of the 
electrolyte of the super capacitors is wide, and rated working 
voltage of the capacitors is improved; the 
electrolyte is small in molecular volume, and inserting embedding-emigrating out can be performed among 
graphite layers under the condition of the electric field activation; electrochemical performance of the electrolyte is stable, the electric field activation can be performed under the condition of 
high voltage, electrolyte ions can be fully inserted and embedded among the graphite 
layers, and high-inserting-layer electrostatic capacitors are obtained.