Journal
NANOSCIENCE AND NANOTECHNOLOGY LETTERS
Volume 6, Issue 1, Pages 68-71Publisher
AMER SCIENTIFIC PUBLISHERS
DOI: 10.1166/nnl.2014.1714
Keywords
Rice Husk; Chemical Activated; Activated Carbon; Lithium Ion Battery; Biomass
Funding
- National Natural Science Foundation of China [50902104, 21105077]
- Hong Kong Research Grants Council (RGC) [112212]
- City University of Hong Kong Applied Research Grants (ARG) [9667066, 9667069]
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Chemically activated carbon extracted from rice husks is used as anode materials in lithium ion batteries. The synthesized porous carbon exhibits a low degree of graphitization and nanoporous microstructure. The activated carbon anode possesses excellent charge/discharge properties at a current density of 0.2 C and the reversible specific capacitance is 730 mA h g(-1) in the first cycle. The coulombic efficiency is maintained at 99% after 3 cycles and the capacitance remains at 400 mA h g(-31) after 60 cycles.
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