36results about How to "The preparation method is simple and flexible" patented technology

The invention discloses a preparation method of a MnO<2>/Ti<3>C<2>T<x>Mxene flexible supercapacitor electrode material, and belongs to the technical field of energy storage materials. According to thepreparation method, MnO<2>and Ti<3>C<2>T<x>Mxene are combined to prepare the flexible supercapacitor electrode material with high electrochemical performance and mechanical property. Specifically, LiF and HCl are used as corrosive liquids, and an Al layer of Ti<3>AlC<2> is corroded to obtain Ti<3>C<2>T<x>; then MnCl<2>.4H<2>O and Ti<3>C<2>T<x> are mixed and heated at a certain mass ratio to be subjected to a redox reaction under the effect of KMnO<4> to enable the generated MnO<2> nano rods to be deposited on Ti<3>C<2>T<x>; and finally, washing and drying are carried out to obtain the flexible supercapacitor electrode material. According to the invention, MnO<2>with excellent specific capacitance is utilized, and specific to the defect that the conductive performance thereof is poor, an in-situ deposition method is adopted; the MnO<2> nano rods are deposited on the Ti<3>C<2>T<x>Mxene material with excellent conductivity to obtain the flexible MnO<2>/Ti<3>C<2>T<x>Mxene composite electrode material, so that not only rapid transmission of electrons is ensued, but also the resistance of the system is lowered; and the capacitor prepared by the electrode material has the characteristicsof high flexibility, excellent cycling stability, high energy density and the like.