Carbon/Sulfur Aerogel with Adequate Mesoporous Channels as Robust Polysulfide Confinement Matrix for Highly Stable Lithium-Sulfur Battery

Yan Yan; Peng Zhang; Zehua Qu; Minman Tong; Shuang Zhao; Zhiwei Li; Mingkai Liu; Zhiqun Lin

doi:10.1021/acs.nanolett.0c03203

Carbon/Sulfur Aerogel with Adequate Mesoporous Channels as Robust Polysulfide Confinement Matrix for Highly Stable Lithium-Sulfur Battery

Yan Yan, Peng Zhang, Zehua Qu, Minman Tong, Shuang Zhao, Zhiwei Li, Mingkai Liu, Zhiqun Lin

Chemistry & Nanoscience

Research output: Contribution to journal › Article › peer-review

116 Scopus citations

Abstract

The ability to restrict the shuttle of lithium polysulfide (LiPSn) and improve the utilization efficiency of sulfur represents an important endeavor toward practical application of lithium-sulfur (Li-S) batteries. Herein, we report the crafting of a robust 3D graphene-wrapped, nitrogen-doped, highly mesoporous carbon/sulfur (G-NHMC/S) hierarchical aerogel as an effective polysulfide confinement matrix for a highly stable Li-S battery. Rich polar sites of NHMC firmly anchor LiPSn on the matrix surface. Porous NHMC provides ample space for accommodating sulfur and cushioning its volume expansion. Moreover, graphene wrapped on NHMC/S not only physically hinders the LiPSn shuttle but also interconnects the isolated NHMC/S, thus increasing electron transfer rate. Taken together, triple confinement of G-NHMC/S aerogel synergistically retains the soluble LiPSn and displays a specific capacity of 1322 mAh g-1 and 1000-cycle life. As such, rationally designed 3D carbon/sulfur aerogel affords a unique platform to impart high energy density and stable electrodes for energy storage devices.

Original language	English
Pages (from-to)	7662-7669
Number of pages	8
Journal	Nano Letters
Volume	20
Issue number	10
DOIs	https://doi.org/10.1021/acs.nanolett.0c03203
State	Published - 14 Oct 2020

Bibliographical note

Funding Information:
The authors are grateful for financial support from the National Natural Science Foundation of China (51703087), the Natural Science Foundation of Jiangsu Province (BK20150238, BK20170240), the Natural Science Foundation of Jiangsu Education Committee of China (17KJB430015), and the Priority Academic Program Development of Jiangsu Higher Education Institutions.

Publisher Copyright:
Copyright © 2020 American Chemical Society.

Keywords

DFT calculation
Hierarchical aerogel
Lithium-sulfur batteries
Nitrogen-doped
Shuttle of lithium polysulfide

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title = "Carbon/Sulfur Aerogel with Adequate Mesoporous Channels as Robust Polysulfide Confinement Matrix for Highly Stable Lithium-Sulfur Battery",

abstract = "The ability to restrict the shuttle of lithium polysulfide (LiPSn) and improve the utilization efficiency of sulfur represents an important endeavor toward practical application of lithium-sulfur (Li-S) batteries. Herein, we report the crafting of a robust 3D graphene-wrapped, nitrogen-doped, highly mesoporous carbon/sulfur (G-NHMC/S) hierarchical aerogel as an effective polysulfide confinement matrix for a highly stable Li-S battery. Rich polar sites of NHMC firmly anchor LiPSn on the matrix surface. Porous NHMC provides ample space for accommodating sulfur and cushioning its volume expansion. Moreover, graphene wrapped on NHMC/S not only physically hinders the LiPSn shuttle but also interconnects the isolated NHMC/S, thus increasing electron transfer rate. Taken together, triple confinement of G-NHMC/S aerogel synergistically retains the soluble LiPSn and displays a specific capacity of 1322 mAh g-1 and 1000-cycle life. As such, rationally designed 3D carbon/sulfur aerogel affords a unique platform to impart high energy density and stable electrodes for energy storage devices.",

keywords = "DFT calculation, Hierarchical aerogel, Lithium-sulfur batteries, Nitrogen-doped, Shuttle of lithium polysulfide",

author = "Yan Yan and Peng Zhang and Zehua Qu and Minman Tong and Shuang Zhao and Zhiwei Li and Mingkai Liu and Zhiqun Lin",

note = "Funding Information: The authors are grateful for financial support from the National Natural Science Foundation of China (51703087), the Natural Science Foundation of Jiangsu Province (BK20150238, BK20170240), the Natural Science Foundation of Jiangsu Education Committee of China (17KJB430015), and the Priority Academic Program Development of Jiangsu Higher Education Institutions. Publisher Copyright: Copyright {\textcopyright} 2020 American Chemical Society.",

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AU - Yan, Yan

AU - Zhang, Peng

AU - Qu, Zehua

AU - Tong, Minman

AU - Zhao, Shuang

AU - Li, Zhiwei

AU - Liu, Mingkai

AU - Lin, Zhiqun

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N2 - The ability to restrict the shuttle of lithium polysulfide (LiPSn) and improve the utilization efficiency of sulfur represents an important endeavor toward practical application of lithium-sulfur (Li-S) batteries. Herein, we report the crafting of a robust 3D graphene-wrapped, nitrogen-doped, highly mesoporous carbon/sulfur (G-NHMC/S) hierarchical aerogel as an effective polysulfide confinement matrix for a highly stable Li-S battery. Rich polar sites of NHMC firmly anchor LiPSn on the matrix surface. Porous NHMC provides ample space for accommodating sulfur and cushioning its volume expansion. Moreover, graphene wrapped on NHMC/S not only physically hinders the LiPSn shuttle but also interconnects the isolated NHMC/S, thus increasing electron transfer rate. Taken together, triple confinement of G-NHMC/S aerogel synergistically retains the soluble LiPSn and displays a specific capacity of 1322 mAh g-1 and 1000-cycle life. As such, rationally designed 3D carbon/sulfur aerogel affords a unique platform to impart high energy density and stable electrodes for energy storage devices.

AB - The ability to restrict the shuttle of lithium polysulfide (LiPSn) and improve the utilization efficiency of sulfur represents an important endeavor toward practical application of lithium-sulfur (Li-S) batteries. Herein, we report the crafting of a robust 3D graphene-wrapped, nitrogen-doped, highly mesoporous carbon/sulfur (G-NHMC/S) hierarchical aerogel as an effective polysulfide confinement matrix for a highly stable Li-S battery. Rich polar sites of NHMC firmly anchor LiPSn on the matrix surface. Porous NHMC provides ample space for accommodating sulfur and cushioning its volume expansion. Moreover, graphene wrapped on NHMC/S not only physically hinders the LiPSn shuttle but also interconnects the isolated NHMC/S, thus increasing electron transfer rate. Taken together, triple confinement of G-NHMC/S aerogel synergistically retains the soluble LiPSn and displays a specific capacity of 1322 mAh g-1 and 1000-cycle life. As such, rationally designed 3D carbon/sulfur aerogel affords a unique platform to impart high energy density and stable electrodes for energy storage devices.

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Carbon/Sulfur Aerogel with Adequate Mesoporous Channels as Robust Polysulfide Confinement Matrix for Highly Stable Lithium-Sulfur Battery

Abstract

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Keywords

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