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A new high-capacity and safe energy storage system: lithium-ion sulfur batteries

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Abstract

Lithium-ion sulfur batteries as a new energy storage system with high capacity and enhanced safety have been emphasized, and their development has been summarized in this review. The lithium-ion sulfur battery applies elemental sulfur or lithium sulfide as the cathode and lithium-metal-free materials as the anode, which can be divided into two main types. One is anode-type, where elemental sulfur is applied as the cathode, and the anode provides lithium ions. The other one is cathode-type, where lithium sulfide as the cathode provides lithium ions, and lithium-metal-free materials (e.g., graphite, silicon/carbon) function as the anode. Recently, some new lithium-ion sulfur battery systems have also been proposed, and are discussed in this review as well. The lithium-ion sulfur batteries not only maintain the advantage of high energy density because of the high capacities of sulfur and lithium sulfide, but also exhibit the improved safety of the batteries due to a non-lithium-metal in the anode. This review paper aims to track the recent progress in the development of lithium-ion sulfur batteries and summarize the challenges and the approaches for improving their electrochemical performances, including the lithiation methods to prepare lithium-metal-free anodes in anode-type lithium-ion sulfur batteries and the lithium sulfide cathode modification approaches in cathode-type lithium-ion sulfur batteries. Furthermore, the challenges and perspectives for future research and commercial applications have also been enumerated.

Graphical abstract: A new high-capacity and safe energy storage system: lithium-ion sulfur batteries

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Publication details

The article was received on 05 Jul 2019, accepted on 10 Sep 2019 and first published on 12 Sep 2019


Article type: Review Article
DOI: 10.1039/C9NR05670J
Nanoscale, 2019, Advance Article

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    A new high-capacity and safe energy storage system: lithium-ion sulfur batteries

    X. Liang, J. Yun, Y. Wang, H. Xiang, Y. Sun, Y. Feng and Y. Yu, Nanoscale, 2019, Advance Article , DOI: 10.1039/C9NR05670J

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