Multi-Layer TiO2−x-PEDOT-Decorated Industrial Fe2O3 Composites as Anode Materials for Cycle-Performance-Enhanced Lithium-Ion Batteries

An industrial submicron-sized Fe2O3 with no special shape was decorated by a multi-layer coating of oxygen-deficient TiO2−x and conducting polymer PEDOT (poly 3,4-ethylenedioxythiophene). A facile sol–gel method followed an EDOT polymerization process adopted to synthesize the hierarchical composite. The microstructure phase composition were characterized using X-ray diffraction analysis (XRD), scanning electron microscopy (SEM), transmission (TEM). In particular, existence state determined Fourier transform infrared (FT-IR) thermogravimetric (TG) analysis. characterization results indicated dual well-coated on its thickness nano scale. Electrochemical that helpful for significantly enhancing cycle stability Fe2O3, electrochemical performance even better than single-layer samples. synergistic effects ceramic demonstrated be useful improving properties. obtained FTP-24 sample exhibited specific discharge capacity 588.9 mAh/g after 360 cycles at current density 100 mA/g, which effectively improved intrinsic cycling corresponding 50 30 cycles.