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Issue 17, 2017
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A review of flexible lithium–sulfur and analogous alkali metal–chalcogen rechargeable batteries

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Abstract

Flexible energy storage systems are imperative for emerging flexible devices that are revolutionizing our life. Lithium-ion batteries, the current main power sources, are gradually approaching their theoretical limitation in terms of energy density. Therefore, alternative battery chemistries are urgently required for next-generation flexible power sources with high energy densities, low cost, and inherent safety. Flexible lithium–sulfur (Li–S) batteries and analogous flexible alkali metal–chalcogen batteries are of paramount interest owing to their high energy densities endowed by multielectron chemistry. In this review, we summarized the recent progress of flexible Li–S and analogous batteries. A brief introduction to flexible energy storage systems and general Li–S batteries has been provided first. Progress in flexible materials for flexible Li–S batteries are reviewed subsequently, with a detailed classification of flexible sulfur cathodes as those based on carbonaceous (e.g., carbon nanotubes, graphene, and carbonized polymers) and composite (polymers and inorganics) materials and an overview of flexible lithium anodes and flexible solid-state electrolytes. Advancements in other flexible alkali metal–chalcogen batteries are then introduced. In the next part, we emphasize the importance of cell packaging and flexibility evaluation, and two special flexible battery prototypes of foldable and cable-type Li–S batteries are highlighted. In the end, existing challenges and future development of flexible Li–S and analogous alkali metal–chalcogen batteries are summarized and prospected.

Graphical abstract: A review of flexible lithium–sulfur and analogous alkali metal–chalcogen rechargeable batteries

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Publication details

The article was received on 23 Feb 2017 and first published on 07 Aug 2017


Article type: Review Article
DOI: 10.1039/C7CS00139H
Citation: Chem. Soc. Rev., 2017,46, 5237-5288
  • Open access: Creative Commons BY-NC license
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    A review of flexible lithium–sulfur and analogous alkali metal–chalcogen rechargeable batteries

    H. Peng, J. Huang and Q. Zhang, Chem. Soc. Rev., 2017, 46, 5237
    DOI: 10.1039/C7CS00139H

    This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence. Material from this article can be used in other publications provided that the correct acknowledgement is given with the reproduced material and it is not used for commercial purposes.

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