Preparation of self-repairable nano composite polymer electrolyte and lithium battery adopting self-repairable nano composite polymer electrolyte

The invention belongs to the technical field of polymer solid-state batteries, and particularly relates to preparation of a self-repairable nano-composite polymer electrolyte and a lithium battery adopting the self-repairable nano-composite polymer electrolyte. The nano composite polymer electrolyte disclosed by the invention comprises a lithium salt, a hyperbranched monomer, modified inorganic nanoparticles and a polymer monomer. According to the invention, the disulfide bond is introduced, so that the polymer matrix can be quickly self-repaired; the hyperbranched nanoparticles are added, so that the glass transition temperature (Tg) and the crystallinity of a polymer matrix are reduced, a transmission channel beneficial to lithium ions is provided, and the ionic conductivity is improved. The self-repairing nano-composite polymer electrolyte provided by the invention has the advantages of simple synthesis, convenient molding, high self-repairing efficiency, repeated self-repairing at the same position, simpl