| 초록 |
Coaxial electrospun silicon nanoparticles-carbon nanotubes/carbon nanofibers (SCNFs) were fabricated using electrospinning a blend of silicon nanoparticles (SiNPs), carbon nanotubes (CNTs), and poly vinylpyrrolidone (PVP) in the core and polyacrylonitrile (PAN) in the shell. After carbonization at 1000 °C for 2 h in nitrogen, the SCNFs were formed with carbon shell encapsulating SiNPs/CNTs core. SCNF electrode-based Li-ion batteries (LiBs) were prepared with different amount of CNTs (CNT/SiNP = 0.5, 1, 2, 5, 10 wt%). The coaxial structure and morphology of SCNFs were characterized. The charge-discharge voltage profile and cycling behavior of the LiBs were tested. |
