Pie-like electrode design for high-energy density lithium–sulfur batteries

Owing to the overwhelming advantage in energy density, lithium–sulfur (Li–S) battery is a promising next-generation electrochemical energy storage system. Despite many efforts in pursuing long cycle life, relatively little emphasis has been placed on increasing the areal energy density. Herein, we h...

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Main Authors:	Li, Zhen, Zhang, Jin Tao, Chen, Yu Ming, Li, Ju, Lou, Xiong Wen (David)
Format:	Online
Language:	English
Published:	Nature Pub. Group 2015
Online Access:	https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4674769/

id	pubmed-4674769
recordtype	oai_dc
spelling	pubmed-46747692015-12-21 Pie-like electrode design for high-energy density lithium–sulfur batteries Li, Zhen Zhang, Jin Tao Chen, Yu Ming Li, Ju Lou, Xiong Wen (David) Article Owing to the overwhelming advantage in energy density, lithium–sulfur (Li–S) battery is a promising next-generation electrochemical energy storage system. Despite many efforts in pursuing long cycle life, relatively little emphasis has been placed on increasing the areal energy density. Herein, we have designed and developed a ‘pie' structured electrode, which provides an excellent balance between gravimetric and areal energy densities. Combining lotus root-like multichannel carbon nanofibers ‘filling' and amino-functionalized graphene ‘crust', the free-standing paper electrode (S mass loading: 3.6 mg cm−2) delivers high specific capacity of 1,314 mAh g−1 (4.7 mAh cm−2) at 0.1 C (0.6 mA cm−2) accompanied with good cycling stability. Moreover, the areal capacity can be further boosted to more than 8 mAh cm−2 by stacking three layers of paper electrodes with S mass loading of 10.8 mg cm−2. Nature Pub. Group 2015-11-26 /pmc/articles/PMC4674769/ /pubmed/26608228 http://dx.doi.org/10.1038/ncomms9850 Text en Copyright © 2015, Nature Publishing Group, a division of Macmillan Publishers Limited. All Rights Reserved. http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article's Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
repository_type	Open Access Journal
institution_category	Foreign Institution
institution	US National Center for Biotechnology Information
building	NCBI PubMed
collection	Online Access
language	English
format	Online
author	Li, Zhen Zhang, Jin Tao Chen, Yu Ming Li, Ju Lou, Xiong Wen (David)
spellingShingle	Li, Zhen Zhang, Jin Tao Chen, Yu Ming Li, Ju Lou, Xiong Wen (David) Pie-like electrode design for high-energy density lithium–sulfur batteries
author_facet	Li, Zhen Zhang, Jin Tao Chen, Yu Ming Li, Ju Lou, Xiong Wen (David)
author_sort	Li, Zhen
title	Pie-like electrode design for high-energy density lithium–sulfur batteries
title_short	Pie-like electrode design for high-energy density lithium–sulfur batteries
title_full	Pie-like electrode design for high-energy density lithium–sulfur batteries
title_fullStr	Pie-like electrode design for high-energy density lithium–sulfur batteries
title_full_unstemmed	Pie-like electrode design for high-energy density lithium–sulfur batteries
title_sort	pie-like electrode design for high-energy density lithium–sulfur batteries
description	Owing to the overwhelming advantage in energy density, lithium–sulfur (Li–S) battery is a promising next-generation electrochemical energy storage system. Despite many efforts in pursuing long cycle life, relatively little emphasis has been placed on increasing the areal energy density. Herein, we have designed and developed a ‘pie' structured electrode, which provides an excellent balance between gravimetric and areal energy densities. Combining lotus root-like multichannel carbon nanofibers ‘filling' and amino-functionalized graphene ‘crust', the free-standing paper electrode (S mass loading: 3.6 mg cm−2) delivers high specific capacity of 1,314 mAh g−1 (4.7 mAh cm−2) at 0.1 C (0.6 mA cm−2) accompanied with good cycling stability. Moreover, the areal capacity can be further boosted to more than 8 mAh cm−2 by stacking three layers of paper electrodes with S mass loading of 10.8 mg cm−2.
publisher	Nature Pub. Group
publishDate	2015
url	https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4674769/
_version_	1613511507053641728

Pie-like electrode design for high-energy density lithium–sulfur batteries

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