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Sulfur-nickel foam as cathode materials for lithium-sulfur batteries

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2015
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Journal Article

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Cheng, J. and Zhu, J. and Pan, Y. and Ma, Z. and Song, H. and Pan, J. and Li, Z. et al. 2015. Sulfur-nickel foam as cathode materials for lithium-sulfur batteries. ECS Electrochemistry Letters. 4 (2): pp. A19-A21.
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ECS Electrochemistry Letters
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Department of Mechanical Engineering
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This article is published under the Open Access publishing model and distributed under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/ . Please refer to the licence to obtain terms for any further reuse or distribution of this work.

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Abstract

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 sulphur and nickel foam skeletons.