Si@SiO2 nanowires/carbon textiles cable-type anodes for high-capacity reversible lithium-ion batteries

Abstract

To fulfil the increasing demands for high-efficiency next-generation energy storage systems, different electrode matrixes have been designed to achieve the desired batteries with high energy density and long cycle life. Herein, we fabricated novel binder-free Si@SiO₂ nanowires/carbon textiles cable-type anodes for Li-ion batteries applications. The half-cells based on the above electrodes delivered high reversible capacity of 2247 mA h g⁻¹ at 800 mA g⁻¹, good rate capability, and excellent cycle stability of as long as 1000 cycles at 8 A g⁻¹. Full batteries including the as-synthesized Si@SiO₂ anodes and commercial LiCoO₂ cathodes were also fabricated, which exhibited greatly enhanced performance, thus revealing that these novel Si@SiO₂ nanowires/carbon textiles cable-type electrodes can be applied in next-generation energy storage devices.