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Issue 25, 2018
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Recent research trends in Li–S batteries

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Abstract

Lithium–sulfur (Li–S) batteries have recently attracted enormous attention in the energy-storage sector owing to their high theoretical capacities (1675 mA h g−1), high theoretical energy densities (2600 W h kg−1), and cost-effectiveness compared to the state-of-the-art Li-ion batteries. Despite these merits, the practical application of Li–S battery technology is hindered by certain severe drawbacks. Therefore, current challenges need to be diagnosed in order to find effective solutions to these Li–S battery-commercialization obstacles. To help direct future work, we not only summarize current research trends, but also highlight an effective solution for the practical applications of Li–S batteries. In this review, we thoroughly summarize current research work on three kinds of Li–S battery systems based on different cathode materials, namely sulfur (S8), lithium sulfide, and sulfurized-polyacrylonitrile. In addition, we also provide insight into the current challenges associated with Li–metal anodes in Li–S batteries. We then summarize and discuss an effective solution to these issues, namely the use of Li–metal-free anodes or all-solid state electrolytes in Li–S full cell systems.

Graphical abstract: Recent research trends in Li–S batteries

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Article information


Submitted
11 Feb 2018
Accepted
05 Jun 2018
First published
06 Jun 2018

J. Mater. Chem. A, 2018,6, 11582-11605
Article type
Review Article

Recent research trends in Li–S batteries

R. Kumar, J. Liu, J. Hwang and Y. Sun, J. Mater. Chem. A, 2018, 6, 11582
DOI: 10.1039/C8TA01483C

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