Journal
ECS ELECTROCHEMISTRY LETTERS
Volume 4, Issue 2, Pages A19-A21Publisher
ELECTROCHEMICAL SOC INC
DOI: 10.1149/2.0011502eel
Keywords
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Funding
- National Natural Science Foundation of China [11372267, 11102176]
- Emerging Strategic Industries of Hunan Province [2012GK4075]
- National High Technology Research and Development Program of China (863 Program) [2013AA032502]
- Graduate Innovation Program of Hunan Province [CX2013B258]
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Sulfur-nickel foam cathode materials prepared by an in situ solution-based method were served as electrode of lithium-sulfur (Li-S) batteries. At the rate of 0.5 C, the Li-S cells deliver an initial discharge capacity of 1340 mAh g(-1) and 493 mAh g(-1) after 500 cycles. It is shown that these Li-S cells are of high rate stabilities with a nearly 100% stable coulombic efficiency at various rates from 0.1 C to 5 C. The electrochemical stability of Li-S batteries is mainly due to the strong binding between the highly dispersed sulfur and nickel foam skeletons. (C) The Author(s) 2014. Published by ECS. All rights reserved.
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