Journal
ELECTROCHIMICA ACTA
Volume 133, Issue -, Pages 564-569Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.electacta.2014.03.164
Keywords
Li2FeSiO4; Polyanionic; Cathode material; Lithium-ion battery; Carbon coating
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Funding
- State Key Basic Research Program of PRC [2011CB935903]
- National Natural Science Foundation of China [20925312]
- Shanghai Science Technology Committee [13JC1407900]
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A Li2FeSiO4/C nanocomposite is prepared via solvothermal method in combination with carbon coating technology. The as-prepared L nanocomposite is a single phase Li2FeSiO4 with nano-tickness coated carbon layer and connected by the mutual cross-linked carbon conductive matrix. As cathode material for lithium ion battery, the composite delivers a discharge capacity of 154 mAh g(-1) at 1 C and exhibits good rate capability with a discharge capacity of 106 mAh g(-1) at the rate of 10 C, which is ascribed to the small particle size and enhanced electronic conductivity using carbon coating technology. The asprepared Li2FeSiO4/C nanocomposite also behaves a good cycling stability with capacity retention of over 100 cycles. (C) 2014 Elsevier Ltd. All rights reserved.
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