Carbon nanotube-based materials for lithium-sulfur batteries
Lithium-sulfur batteries (Li-S) have attracted considerable attention because of their high theoretical energy density (2600 W h kg −1 ). However, practical commercial applications of Li-S batteries are limited by the low conductivity of sulfur and discharge products, severe polysulfide shuttling ef...
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| Published in | Journal of materials chemistry. A, Materials for energy and sustainability Vol. 7; no. 29; pp. 1724 - 17241 |
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| Main Authors | , , , , , , , , |
| Format | Journal Article |
| Language | English |
| Published |
Cambridge
Royal Society of Chemistry
2019
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| Subjects | |
| Online Access | Get full text |
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| Summary: | Lithium-sulfur batteries (Li-S) have attracted considerable attention because of their high theoretical energy density (2600 W h kg
−1
). However, practical commercial applications of Li-S batteries are limited by the low conductivity of sulfur and discharge products, severe polysulfide shuttling effect, and large sulfur volume expansion during discharge. Various nanostructured carbon materials have been used as sulfur host materials to overcome these problems. Carbon nanotubes (CNTs) are superior to other nanostructured carbon materials because of their unique 1D nanostructure, good conductivity, excellent flexibility, and stable chemical properties. This article reviews the application of CNT-based materials, including simple CNT materials and CNT-based nanocomposites, in Li-S batteries and the particular roles of CNTs in this system. First, general information about the function of CNTs in Li-S batteries and the preparation method of CNT/sulfur composite is provided. Second, various simple CNTs are described, and their inherent characteristics are discussed. Third, CNT-based nanocomposites, including carbon material@CNTs, chemisorption host material@CNTs, and nanocomposites based on
in situ
formed CNTs, are summarized. The synergistic effect of components and the function of CNTs in the composite are discussed specifically. Fourth, further treatments for CNT/S nanocomposites to better control the diffusion of polysulfides are summarized. Finally, future directions and prospects are discussed.
Research progress in the application of carbon nanotube-based materials in lithium-sulfur batteries is summarized and evaluated. |
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| Bibliography: | Huan Pang received his PhD degree from Nanjing University in 2011. He is now a university distinguished professor in Yangzhou University. In the past 10 years, his group has been engaged in the design and synthesis of functional nanomaterials. He is on the editorial board of FlatChem and managing editor of EnergyChem, Elsevier. He has published more than 200 papers in peer-reviewing journals including Chemical Society Reviews, Energy Environ. Sci., Advanced Materials, with 7000 citations (H-index = 48). His research interests include the development of inorganic nanostructures and their applications in nanoelectrochemistry with a focus on energy devices. Yao Chi is now a graduate student at Yangzhou University. His research mainly focuses on the field of the electrochemical energy storage materials. Mingbo Zheng received his PhD in material processing engineering from Nanjing University of Aeronautics and Astronautics in 2009. He was a postdoctoral researcher at Nanjing University from 2009 to 2012. He was an associate researcher at Nanjing University from 2012 to 2015. He is currently an associate professor at Yangzhou University. He has published more than 120 papers in peer-reviewing journals including Advanced Functional Materials, Advanced Science, Small, Journal of Materials Chemistry A, etc., with 3600 citations (H-index = 34). His research interests are in the field of materials for electrochemical energy storage. ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 14 content type line 23 |
| ISSN: | 2050-7488 2050-7496 2050-7496 |
| DOI: | 10.1039/c9ta05347f |