Silicon–carbon composite dispersed in a carbon paper substrate for solid polymer lithium-ion batteries

摘要: Abstract Carbon coated silicon (Si/C) dispersed in a carbon paper (CP) was examined as the anode for solid polymer lithium-ion batteries. The CP prepared by pyrolysis of poly(acrylonitrile) fiber and Manila hemp non-woven cloth at 2600 °C under an inert atmosphere. Si/C composite formed slurry consisting Si power solution polyvinyl chloride tetrahydrofuran source. Si/C:CP with weight ratio 20:100 had high initial capacity 980 mAh g −1 columbic efficiency 77%, also exhibited excellent retention reversible 710 mAh g even after 250 cycles charge discharge rate 0.1 A g . framework could adsorb volume change during lithium insertion stripping processes.