Li3.33Cu1.005Ti4.665O12/CuO composite with P4332 space group for Li-ion batteries: synergistic effect of substituting and compositing

Li3.33Cu1.005Ti4.665O12/CuO was fabricated via a one-step solid-state reaction. Li3.33Cu1.005Ti4.665O12 with the P4332 space group shows enhanced electronic conductivity and Li+ ion diffusion coefficient. The Cu particles reduced from CuO during the first lithiation process benefit the electrical conduction between Li3.33Cu1.005Ti4.665O12 particles. Consequently, Li3.33Cu1.005Ti4.665O12/CuO exhibits a small potential hysteresis and high rate performance.