Optimized synthesis of ultrahigh-surface-area and oxygen-doped carbon nanobelts for high cycle-stability lithium-sulfur batteries

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dc.contributor.author Zou, Jizhao
dc.contributor.author Niu, Yuan
dc.contributor.author Tu, Wenxuan
dc.contributor.author Zhang, Qi
dc.contributor.author Yao, Yuechao
dc.contributor.author Zeng, Shaozhong
dc.contributor.author Lan, Tongbin
dc.contributor.author Wu, Hongliang
dc.contributor.author Zeng, Xierong
dc.contributor.author Zeng, Xierong
dc.date.accessioned 2020-01-10T10:52:52Z
dc.date.available 2020-01-10T10:52:52Z
dc.date.issued 2019-10-14
dc.identifier.citation Zou J, Niu Y, Tu W, Zhang Q, Yao Y, Zeng S, Lan T, Wu H & Zeng X (2019) Optimized synthesis of ultrahigh-surface-area and oxygen-doped carbon nanobelts for high cycle-stability lithium-sulfur batteries. Journal of The Electrochemical Society, Volume 166, Issue 14, 2019, pp. A3464-A3473 en_UK
dc.identifier.issn 0013-4651
dc.identifier.uri https://doi.org/10.1149/2.1111914jes
dc.identifier.uri http://dspace.lib.cranfield.ac.uk/handle/1826/14906
dc.description.abstract Hierarchical clews of carbon nanobelts (CsCNBs) with ultrahigh specific surface area (2300 m2 g−1) and large pore volume (up to 1.29 cm3 g−1) has been successfully fabricated through carbonization and KOH activation of phenolic resin based nanobelts. The product possesses hierarchically porous structure, three-dimensional conductive network framework, and polar oxygen-rich groups, which are very befitting to load sulfur leading to excellent cycling stability of lithium-sulfur batteries. The composites of CsCNBs/sulfur exhibit an ultrahigh initial discharge capacity of 1245 mA h g−1 and ultralow capacity decay rate as low as 0.162% per cycle after 200 cycles at 0.1 C. Even at high current rate of 4 C, the cells still display a high initial discharge capacity (621 mA h g−1) and ultralow capacity decay rate (only 0.039% per cycle) after 1000 cycles. These encouraging results indicate that polar oxygen-containing functional groups are important for improving the electrochemical performance of carbons. The oxygen-doped carbon nanobelts have excellent energy storage potential in the field of energy storage. en_UK
dc.language.iso en en_UK
dc.publisher Electrochemical Society en_UK
dc.rights Attribution-NonCommercial 4.0 International *
dc.rights.uri http://creativecommons.org/licenses/by-nc/4.0/ *
dc.subject carbon nanobelts en_UK
dc.subject Li-S batteries en_UK
dc.title Optimized synthesis of ultrahigh-surface-area and oxygen-doped carbon nanobelts for high cycle-stability lithium-sulfur batteries en_UK
dc.type Article en_UK


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