S/N dual-doped carbon nanosheets decorated with CoxOy nanoparticles as high-performance anodes for lithium-ion batteries

In this work, we have successfully synthesized the S/N dual-doped carbon nanosheets which are strongly coupled with CoxOy nanoparticles (SNCC) by calcinating cobalt/dithizone complex precursor following KOH activation. The SNCC as anode shows the wonderful charge capacity of 1200 mAh g−1 after 400th cycles at 1000 mA g−1 for Li-ion storage. The superior electrochemical properties illustrate that the SNCC can be a candidate for high-performance anode material of lithium-ion batteries (LIBs) because of the facile preparation method and excellent performance. Significantly, we also discuss the mechanism for the SNCC from the strong synergistic effect perspective.