Journal
MATERIALS LETTERS
Volume 142, Issue -, Pages 193-196Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.matlet.2014.11.160
Keywords
Carbon materials; Electrical properties; Sisal fiber; Anode material; Hydrothermal activation
Funding
- NSFC [21063005, 21264005, 51163003]
- NSF of Guangxi Province [2010GXNSFC013007, 2014GXNSFAA118331]
- Program for Excellent Talents in Guangxi Higher Education Institutions
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An amorphous carbon was prepared through pyrolysis of sisal fibers and hydrothermal activation of pyrolytic products. The products were characterized by XRD, TEM, Raman and BET-surface area measurement. The results show that the activated carbons have higher specific surface area and higher level of disorder degree than the untreated. As anode materials for lithium-ion batteries, both of untreated and activated sisal carbon samples exhibit good cycling stability. Furthermore, the activated carbons deliver obviously higher capacity than the untreated. It suggests that hydrothermal activation is an effective modified method to improve the electrochemical performance. (C) 2014 Elsevier B.V. All rights reserved.
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