Horsetail-derived Si@N-doped carbon as low-cost and long cycle life anode for Li-ion half/full cells

Si nanoparticles are extracted from low-cost horsetails biomass via magnesiothermic reaction, and then Si@N-doped carbon nanocomposites are fabricated through coating PPy and carbonization process. The Si@N-doped carbon electrode delivers long life stability when applied as anode materials for LIBs, furthermore, Si@N-C//LiCoO2 full cells are assembled and show high capacity, indicating the great potential for practical and industrial applications.451