3D Hierarchically Interconnected Porous Graphene Containing Sulfur for Stable High Rate Li-S Batteries

Weiwei Qian; Qiuming Gao; Kai Yang; Weiqian Tian; Yanli Tan; Chunxiao Yang; Hang Zhang; Zeyu Li; Lihua Zhu

doi:10.1002/ente.201500430

3D Hierarchically Interconnected Porous Graphene Containing Sulfur for Stable High Rate Li-S Batteries

Weiwei Qian
, Qiuming Gao^*
, Kai Yang
, Weiqian Tian
, Yanli Tan
, Chunxiao Yang
, Hang Zhang
, Zeyu Li
, Lihua Zhu

^*Corresponding author for this work

School of Chemistry

Beihang University

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

15 Scopus citations

Abstract

A simple strategy for the reduction of graphene oxide by annealing was used to produce 3D hierarchically interconnected porous graphene (HIPG) samples. The optimized HIPG-900 sample possessing a specific surface area of 367.4m²g^-1 and pore volume of 1.3cm³g^-1 contains a large amount of sulfur (65.8wt%) and improves the utilization of sulfur when used as the cathode of Li-S batteries. A high initial specific discharge capacity of 914.1mAhg^-1 and a specific capacity of 486.0mAhg^-1 after 500 cycles was obtained for HIPG-900/S composites at 1C. A high specific capacity of 467.2 and 162.4mAhg^-1 was obtained at a high rate of 10C with a Coulombic efficiency of over 90.0% at the 1st and 500th cycle, respectively.

Original language	English
Pages (from-to)	625-632
Number of pages	8
Journal	Energy Technology
Volume	4
Issue number	5
DOIs	https://doi.org/10.1002/ente.201500430
State	Published - 1 May 2016

Keywords

Annealing reduction
Cathode material
High rate
Lithium sulfur battery
Porous graphene

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10.1002/ente.201500430

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title = "3D Hierarchically Interconnected Porous Graphene Containing Sulfur for Stable High Rate Li-S Batteries",

abstract = "A simple strategy for the reduction of graphene oxide by annealing was used to produce 3D hierarchically interconnected porous graphene (HIPG) samples. The optimized HIPG-900 sample possessing a specific surface area of 367.4m2g-1 and pore volume of 1.3cm3g-1 contains a large amount of sulfur (65.8wt\%) and improves the utilization of sulfur when used as the cathode of Li-S batteries. A high initial specific discharge capacity of 914.1mAhg-1 and a specific capacity of 486.0mAhg-1 after 500 cycles was obtained for HIPG-900/S composites at 1C. A high specific capacity of 467.2 and 162.4mAhg-1 was obtained at a high rate of 10C with a Coulombic efficiency of over 90.0\% at the 1st and 500th cycle, respectively.",

keywords = "Annealing reduction, Cathode material, High rate, Lithium sulfur battery, Porous graphene",

author = "Weiwei Qian and Qiuming Gao and Kai Yang and Weiqian Tian and Yanli Tan and Chunxiao Yang and Hang Zhang and Zeyu Li and Lihua Zhu",

note = "Publisher Copyright: {\textcopyright} 2016 WILEY-VCH Verlag GmbH \& Co. KGaA, Weinheim.",

year = "2016",

month = may,

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doi = "10.1002/ente.201500430",

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T1 - 3D Hierarchically Interconnected Porous Graphene Containing Sulfur for Stable High Rate Li-S Batteries

AU - Qian, Weiwei

AU - Gao, Qiuming

AU - Yang, Kai

AU - Tian, Weiqian

AU - Tan, Yanli

AU - Yang, Chunxiao

AU - Zhang, Hang

AU - Li, Zeyu

AU - Zhu, Lihua

PY - 2016/5/1

Y1 - 2016/5/1

N2 - A simple strategy for the reduction of graphene oxide by annealing was used to produce 3D hierarchically interconnected porous graphene (HIPG) samples. The optimized HIPG-900 sample possessing a specific surface area of 367.4m2g-1 and pore volume of 1.3cm3g-1 contains a large amount of sulfur (65.8wt%) and improves the utilization of sulfur when used as the cathode of Li-S batteries. A high initial specific discharge capacity of 914.1mAhg-1 and a specific capacity of 486.0mAhg-1 after 500 cycles was obtained for HIPG-900/S composites at 1C. A high specific capacity of 467.2 and 162.4mAhg-1 was obtained at a high rate of 10C with a Coulombic efficiency of over 90.0% at the 1st and 500th cycle, respectively.

AB - A simple strategy for the reduction of graphene oxide by annealing was used to produce 3D hierarchically interconnected porous graphene (HIPG) samples. The optimized HIPG-900 sample possessing a specific surface area of 367.4m2g-1 and pore volume of 1.3cm3g-1 contains a large amount of sulfur (65.8wt%) and improves the utilization of sulfur when used as the cathode of Li-S batteries. A high initial specific discharge capacity of 914.1mAhg-1 and a specific capacity of 486.0mAhg-1 after 500 cycles was obtained for HIPG-900/S composites at 1C. A high specific capacity of 467.2 and 162.4mAhg-1 was obtained at a high rate of 10C with a Coulombic efficiency of over 90.0% at the 1st and 500th cycle, respectively.

KW - Annealing reduction

KW - Cathode material

KW - High rate

KW - Lithium sulfur battery

KW - Porous graphene

UR - https://www.scopus.com/pages/publications/85006184233

U2 - 10.1002/ente.201500430

DO - 10.1002/ente.201500430

M3 - 文章

AN - SCOPUS:85006184233

SN - 2194-4288

VL - 4

SP - 625

EP - 632

JO - Energy Technology

JF - Energy Technology

IS - 5

ER -

3D Hierarchically Interconnected Porous Graphene Containing Sulfur for Stable High Rate Li-S Batteries

Abstract

Keywords

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