Journal
ELECTROCHIMICA ACTA
Volume 107, Issue -, Pages 413-418Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.electacta.2013.06.002
Keywords
Porous graphitic carbon; Internal parallel hybrid; Petroleum coke; Lithium-ion battery; Supercapacitor
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Funding
- National Natural Science Foundation of China [50972064, 51232005]
- Ministry of Science and Technology (MOST) of China [2010DFA72760]
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Porous graphitic carbons (PGC) are synthesized to be used in internal parallel hybrid devices. The hybrid devices are assembled with a LiFePO4 cathode, and an anode based on a mixture of PGC and Li4Ti5O12. Then the hybrid devices are characterized by galvanostatic charge/discharge, rate charge/discharge and cycle performance testing. The results show that PGC hybrid devices possess better performance than the commercial activated carbon hybrid device. Moreover, the internal parallel hybrid device with 25% PGC, denoted as T3P1F, exhibits an optimal performance with high energy density, high power density and stable cycling performance. (C) 2013 Published by Elsevier Ltd.
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