Cathode performance of new hybrid guest-host nanocomposites based on poly(2,5-dimercaptothiophene)

New hybrid guest-host nanocomposites based on polymer with disulfide bonds and V2O5 were prepared and studied by means of different physicochemical and electrochemical methods. It is established that the change in electronic properties of the intercalated sulfur-containing polymer, achieved via changing the chemical structure of the polymer heterocycle, results in the suppression of the dissolution of the products of its reduction at charge-discharge of the nanocomposites in the liquid electrolyte. The use of poly(2,5-dimercaptothiophene), PDTh, together with polyaniline, PAn, allows us to stabilize the discharge capacity of the hybrid nanocomposite (PDTh + PAn)-V2O5 at the level 175 mA h/g at C/12.