Integrated Structures of Silicon/CNTs/Graphite Composite as an Advanced Li‐Metal‐Free Anode for Li‐Sulfur Batteries

Silicon (Si) is considered an alternative anode material for Li-S batteries considering its high theoretical capacity of 3590 mAh g−1 at room temperature, and advantageous to avoid unfavorable Li metal anode, which forms dendrites during the cell charging discharging process causes short circuits. Here in this study, we have prepared a nanocomposite comprising Si nanoparticles, multi-walled carbon nanotubes (MCNTs), graphite (G) by low-temperature annealing approach studied their electrochemical characteristics combining with sulfur cathodes into Si-S full cells ether-based liquid electrolytes. The battery system exhibits stable properties long cycle life. fabricated delivered specific capacities 328 0.1 C, 243 0.5 calculated energy densities 542 473 Wh kg−1, respectively, without any failure. These results indicate that integration Si, MCNTs, G promising avoiding Li-metal anodes achieving batteries.