Effect of Carbon Matrix on Electrochemical Performance of Si/C Composites for Use in Anodes of Lithium Secondary Batteries
- Title
- Effect of Carbon Matrix on Electrochemical Performance of Si/C Composites for Use in Anodes of Lithium Secondary Batteries
- Author
- 김용신
- Keywords
- Li secondary battery; Si/C composite; Carbon matrix; Silicon
- Issue Date
- 2013-05
- Publisher
- 대한화학회
- Citation
- Bulletin of the Korean Chemical Society, v. 34, NO. 5, Page. 1435-1440
- Abstract
- To investigate the influence of the carbon matrix on the electrochemical performance of Si/C composites, four types of Si/C composites were prepared using graphite, petroleum coke, pitch and sucrose as carbon precursors. A ball mill was used to prepare Si/C blends from graphite and petroleum coke, whereas a dispersion technique was used to fabricate Si/C composites where Si was embedded in disordered carbon matrix derived from pitch or sucrose. The Si/pitch-based carbon composite showed superior Si utilization (96% in the first cycle) and excellent cycle retention (70% after 40 cycles), which was attributed to the effective encapsulation of Si and the buffering effect of the surrounding carbon matrix on the silicon particles.
- URI
- http://koreascience.or.kr/article/JAKO201316536728143.pagehttps://repository.hanyang.ac.kr/handle/20.500.11754/184392
- ISSN
- 0253-2964;1229-5949
- DOI
- 10.5012/bkcs.2013.34.5.1435
- Appears in Collections:
- COLLEGE OF SCIENCE AND CONVERGENCE TECHNOLOGY[E](과학기술융합대학) > CHEMICAL AND MOLECULAR ENGINEERING(화학분자공학과) > Articles
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