Fabrication of flower-like tin/carbon composite microspheres as long-lasting anode materials for lithium ion batteries

作者：Kang Tae Woo; Lim Hyung Seok; Park Seong Jin; Sun Yang Kook; Suh Kyung Do^*

来源：Materials Chemistry and Physics, 2017, 185: 6-13.

DOI：10.1016/j.matchemphys.2016.09.017

• Composite materials
• Electrochemical properties
• Polymers
• Diffusion

In this work, we report the fabrication of the flower-like tin/carbon (Sn/C) composite microspheres using sulfonated semi-interpenetrating polystyrene (SPS) microspheres as a carbon precursor. The sulfonation degree of SPS has great effects on the resulting particle size, morphology, amount of introduced Sn, and the carbonization yield of the microspheres after heat treatment. The obtained Sn/C composite micro spheres were characterized by scanning electron microscopy (SEM), focused-ion beam SEM, and X-ray diffraction. The flower-like Sn/C composite electrodes exhibited higher charge-discharge capacities than those of graphite as an anode material for a lithium ion battery. In addition, they show a long lasting cyclability, even through 400 cycles.

• 出版日期2017-1-1