Journal
APPLIED SURFACE SCIENCE
Volume 265, Issue -, Pages 114-119Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.apsusc.2012.10.145
Keywords
Lithium-ion batteries; Anode; FeS
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Funding
- National Natural Science Foundation of China [20903014]
- Project of Science and Technology Development Planning of Shandong Province [2011YD02088]
- Binzhou City [2011ZC0305]
- Binzhou University [BZXYG1009]
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The Ag coated FeS composite is synthesized via a facile electroless deposition method. The as-prepared FeS/Ag composite shows an initial reversible specific capacity of 533.4 mAh/g and its capacity retention is 79.1% after 55 cycles at different current densities (from 0.1 C to 2 C). In contrast, the initial reversible and capacity retention of pristine FeS tested at the same conditions are 425.8 mAh/g and 29.1%, respectively. The improved reversible capacity and cyclic performance are ascribed to the coated Ag improving the electronic conductivity of the Li2S during its charge process and the suppression of the volume change of FeS anode during its discharge process, respectively. (C) 2012 Elsevier B.V. All rights reserved.
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