In situ-formed nitrogen-doped carbon/silicon-based materials as negative electrodes for lithium-ion batteries

The development of negative electrode materials with better performance than those currently used in Li-ion technology has been a major focus recent battery research. Here, we report the synthesis and electrochemical evaluation situ-formed nitrogen-doped carbon/SiOC. were synthesized by sol–gel process using 3-(aminopropyl)triethoxysilane (APTES), sodium citrate glycerol. pyrolyzed was studied poly(acrylic acid) binder commercial organic electrolyte. Our reported approach enables changes both amount nitrogen morphology as function molar ratio APTES:citrate reaction time. Spherical-shaped NC/SiOC composite electrodes deliver delithiation capacity 622 mAh/g at 0.1 A/g an initial coulombic efficiency ?63%, while large bulk material, respective values 367 ?55% obtained. After 1000 charge/discharge cycles 1.6 A/g, latter material exhibits 98% once it returned to lower current cycling. Overall, our results indicate that are quite promising for applications since their stability demonstrate superior compared traditional graphite. Moreover, is simple and, more importantly, environmentally friendly chemicals, such glycerol, used.