Journal
RSC ADVANCES
Volume 5, Issue 51, Pages 40737-40741Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c5ra03482e
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Funding
- national 973 Preliminary program of China [2014CB260411]
- Fund for Sanqin Scholar [BJ11-26]
- China Postdoctoral Science Foundation [2014M562514XB]
- National Natural Science Fund of China [21203116]
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Use of lithium ion batteries (LIBs) has seen rapid growth in recent years, which requires abundant and low-cost electrode materials. Sweet potato is a worldwide dicotyledonous plant and has usually a high yield. In this work, using sweet potatoes as raw materials, carbon nanoparticles were prepared through a hydrothermal carbonization approach followed by high temperature annealing. We demonstrate that with the as-prepared carbon nanoparticles as anode, the lithium ion battery shows a first discharge capacity as high as 965 mA h g(-1) at a current rate of 100 mA g(-1). Considering the bio-renewable advantage and facile fabrication procedure, carbon nanoparticles derived from sweet potatoes could sustainably satisfy the increasing need for anode materials for LIBs.
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