Review Article

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2017, 10(12): 4027–4054

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https://doi.org/10.1007/s12274-017-1652-x

Review of nanostructured current collectors in lithium–sulfur batteries

Long Kong, Hong-Jie Peng, Jia-Qi Huang, and Qiang Zhang (*)

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Beijing Key Laboratory of Green Chemical Reaction Engineering and Technology, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China

Keywords: Li-S batteries, nanostructured current collectors, Li metal anode, graphene, C nanotubes, composite cathode
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ABSTRACT Lithium–sulfur (Li–S) batteries are receiving increasing attention because of their high theoretical energy density and the natural abundance of S. However, their practical applications are impeded by the low areal S loading in the cathode and the fatal Li dendrites in the anode of the Li−S cells, which yield an inferior practical energy density and introduce safety concerns, respectively. In this review, we focus on an emerging approach—the nanostructured current collector—to overcome these two critical challenges for Li−S batteries. We describe the general attributes of nanostructured current collectors and examine how these attributes enhance the S utilization with a high S loading and suppress the Li dendrites by regulating the Li-deposition behavior. We present various assembly blocks that have been used for the construction of advanced nanostructured current collectors to build better S cathodes and Li anodes. Finally, we investigate the current challenges and possible solutions regarding the practical applications of nanostructured current collectors in Li−S batteries.
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Review of nanostructured current collectors in lithium–sulfur batteries. Nano Res. 2017, 10(12): 4027–4054 https://doi.org/10.1007/s12274-017-1652-x

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