화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Journal of Industrial and Engineering Chemistry, Vol.68, 146-152, December, 2018
DOI10.1016/j.jiec.2018.07.039  Export Citation
Excavated carbon with embedded Si nanoparticles for ultrafast lithium storage
Geon-Hyoung An1, Hyeonjin Kim2, and Hyo-Jin Ahn1, 2, †
  • 1Program of Materials Science and Engineering, Convergence Institute of Biomedical Engineering and Biomaterials, Seoul 139-743, Republic of Korea
  • 2Department of Materials Science and Engineering, Seoul National University of Science and Technology, Seoul 139-743, Republic of Korea
E-mail:
Due to their excellent mechanical durability and high electrical conductivity, carbon and silicon composites are potentially suitable anode materials for Li-ion batteries with high capacity and long lifespan. Nevertheless, the limitations of the composites include their poor ionic diffusion at high current densities during cycling, which leads to low ultrafast performance. In the present study, seeking to improve the ionic diffusion using hydrothermal method, electrospinning, and carbonization, we demonstrate the unique design of excavated carbon and silicon composites (EC/Si). The outstanding energy storage performance of EC/Si electrode provides a discharge specific capacity, impressive rate performance, and ultrafast cycling stability.
Keywords:Li-ion battery;Excavated carbon;Mesoporous structure;Silicon;Ultrafast
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