Consequently, the electrochemical performance was investigated within an optimized voltage window of 1.5 -4.5 V. Figure shows CV scan obtained at scan rate of 0.5 mV/s over the voltage range of 1.5 -4.5 V vs. Li/Li⁺, demonstrating the formation of the SEI layer prominently. In the first cycle (light-green trace), two irreversible peaks, marked as "C" and