Preparation method of self-repairing supercapacitor

The invention discloses a preparation method of a self-repairing supercapacitor, and the method comprises the following steps: 1, preparing a self-repairing polymer electrolyte: taking acrylic hydroxyl ester and a vinyl imidazole derivative as reaction monomers, taking inorganic salt as an electrolyte, taking ammonium persulfate as an initiator, taking N-N-methylene bisacrylamide as a cross-linking agent, and carrying out the self-repairing polymer electrolyte preparation; carrying out free radical reaction under a vacuum condition to obtain the self-repairing polymer electrolyte in one step; and 2, adopting a flexible carbon film as an electrode material, and assembling the electrode material and the self-repairing polymer electrolyte into the supercapacitor. The preparation method is simple, the process is easy to control, the cost is low, and the prepared supercapacitor can realize the self-repairing function of the supercapacitor, so that the problem of function failure of the whole device caused by exter