Effect of boron doped fullerene C60 film coating on the electrochemical characteristics of silicon thin film anodes for lithium secondary batteries

▶ Boron doped C60 film is prepared by plasma assisted thermal evaporation technique. ▶ B:C60 film is used as a coating material for Si film anodes of lithium secondary batteries. ▶ The B:C60 coated Si anode exhibits a high reversible capacity of 1200 mAh g−1 after 50 cycles. ▶ The electronic conductivity and diffusion coefficients of Li-ion on the Si/electrolyte interface are increased due to the boron doping.