Journal
MATERIALS LETTERS
Volume 137, Issue -, Pages 52-55Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.matlet.2014.08.115
Keywords
Nanoparticles; Energy storage and conversion
Funding
- National Natural Science Foundation of China [51371186, 21303236]
- Ningbo 3315 individual plan
- SRF for ROCS, SEM
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Porous Fe2O3 was prepared by simple annealing of preformed Prussian blue that was synthesized from a wet chemistry method. The obtained porous Fe2O3 nanoparticles were then mixed with sulfur and used as cathode for lithium-sulfur batteries. The porous Fe2O3 acts as an internal polysulfide reservoir, and thus reduces the shuttle effect. Composite cathode containing 5% porous Fe2O3 shows improved cycling performance as compared to that without porous Fe2O3. A stable reversible discharge capacity of 574.3 mAh/g was obtained after 50 cycles at 0.5 C. (C) 2014 Elsevier B.V. All rights reserved.
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