A N-doped graphene-cobalt nickel sulfide aerogel as a sulfur host for lithium-sulfur batteries

Ping Wu, Hai Yan Hu, Ning Xie, Chen Wang, Fan Wu, Ming Pan, Hua Fei Li, Xiao Di Wang, Zheling Zeng, Shuguang Deng, Gui Ping Dai

Research output: Contribution to journalArticle

Abstract

Herein, three-dimensional (3D) N-doped reduced graphene oxide (N-rGO) nanosheets were decorated with a uniform distribution of Co-Ni-S (CNS) nanoparticles to form the CNS/N-rGO composite as a sulfur host material for lithium-sulfur batteries. The CNS nanoparticles and N in CNS/N-rGO strongly interact with polysulfides, whereas graphene, as a conductive network, can improve its electrical conductivity. A CNS/N-rGO/sulfur composite cathode was prepared via the sulfur melting diffusion method. The electrochemical study showed that the CNS/N-rGO/sulfur cathode delivered an initial discharge capacity of 1430 mA h g-1 at a current density of 0.1C. Moreover, it retained a specific capacity of 685 mA h g-1 after 300 cycles at 0.5C with a coulombic efficiency of 98%, which was better than that of commercial rGO. This composite was used as a sulfur cathode for a lithium-sulfur battery, exhibiting excellent rate capability and remarkable performance in terms of long cycling stability.

Original languageEnglish (US)
Pages (from-to)32247-32257
Number of pages11
JournalRSC Advances
Volume9
Issue number55
DOIs
StatePublished - Jan 1 2019

Fingerprint

Aerogels
Graphite
Cobalt
Sulfur
Graphene
Nickel
Oxides
Cathodes
Composite materials
Nanoparticles
Polysulfides
Nanosheets
Sulfides
Lithium sulfur batteries
nickel sulfide
Melting
Current density

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)

Cite this

Wu, P., Hu, H. Y., Xie, N., Wang, C., Wu, F., Pan, M., ... Dai, G. P. (2019). A N-doped graphene-cobalt nickel sulfide aerogel as a sulfur host for lithium-sulfur batteries. RSC Advances, 9(55), 32247-32257. https://doi.org/10.1039/c9ra05202j

A N-doped graphene-cobalt nickel sulfide aerogel as a sulfur host for lithium-sulfur batteries. / Wu, Ping; Hu, Hai Yan; Xie, Ning; Wang, Chen; Wu, Fan; Pan, Ming; Li, Hua Fei; Wang, Xiao Di; Zeng, Zheling; Deng, Shuguang; Dai, Gui Ping.

In: RSC Advances, Vol. 9, No. 55, 01.01.2019, p. 32247-32257.

Research output: Contribution to journalArticle

Wu, P, Hu, HY, Xie, N, Wang, C, Wu, F, Pan, M, Li, HF, Wang, XD, Zeng, Z, Deng, S & Dai, GP 2019, 'A N-doped graphene-cobalt nickel sulfide aerogel as a sulfur host for lithium-sulfur batteries', RSC Advances, vol. 9, no. 55, pp. 32247-32257. https://doi.org/10.1039/c9ra05202j
Wu, Ping ; Hu, Hai Yan ; Xie, Ning ; Wang, Chen ; Wu, Fan ; Pan, Ming ; Li, Hua Fei ; Wang, Xiao Di ; Zeng, Zheling ; Deng, Shuguang ; Dai, Gui Ping. / A N-doped graphene-cobalt nickel sulfide aerogel as a sulfur host for lithium-sulfur batteries. In: RSC Advances. 2019 ; Vol. 9, No. 55. pp. 32247-32257.
@article{497f71906d124984838a7b44ac3115ba,
title = "A N-doped graphene-cobalt nickel sulfide aerogel as a sulfur host for lithium-sulfur batteries",
abstract = "Herein, three-dimensional (3D) N-doped reduced graphene oxide (N-rGO) nanosheets were decorated with a uniform distribution of Co-Ni-S (CNS) nanoparticles to form the CNS/N-rGO composite as a sulfur host material for lithium-sulfur batteries. The CNS nanoparticles and N in CNS/N-rGO strongly interact with polysulfides, whereas graphene, as a conductive network, can improve its electrical conductivity. A CNS/N-rGO/sulfur composite cathode was prepared via the sulfur melting diffusion method. The electrochemical study showed that the CNS/N-rGO/sulfur cathode delivered an initial discharge capacity of 1430 mA h g-1 at a current density of 0.1C. Moreover, it retained a specific capacity of 685 mA h g-1 after 300 cycles at 0.5C with a coulombic efficiency of 98{\%}, which was better than that of commercial rGO. This composite was used as a sulfur cathode for a lithium-sulfur battery, exhibiting excellent rate capability and remarkable performance in terms of long cycling stability.",
author = "Ping Wu and Hu, {Hai Yan} and Ning Xie and Chen Wang and Fan Wu and Ming Pan and Li, {Hua Fei} and Wang, {Xiao Di} and Zheling Zeng and Shuguang Deng and Dai, {Gui Ping}",
year = "2019",
month = "1",
day = "1",
doi = "10.1039/c9ra05202j",
language = "English (US)",
volume = "9",
pages = "32247--32257",
journal = "RSC Advances",
issn = "2046-2069",
publisher = "Royal Society of Chemistry",
number = "55",

}

TY - JOUR

T1 - A N-doped graphene-cobalt nickel sulfide aerogel as a sulfur host for lithium-sulfur batteries

AU - Wu, Ping

AU - Hu, Hai Yan

AU - Xie, Ning

AU - Wang, Chen

AU - Wu, Fan

AU - Pan, Ming

AU - Li, Hua Fei

AU - Wang, Xiao Di

AU - Zeng, Zheling

AU - Deng, Shuguang

AU - Dai, Gui Ping

PY - 2019/1/1

Y1 - 2019/1/1

N2 - Herein, three-dimensional (3D) N-doped reduced graphene oxide (N-rGO) nanosheets were decorated with a uniform distribution of Co-Ni-S (CNS) nanoparticles to form the CNS/N-rGO composite as a sulfur host material for lithium-sulfur batteries. The CNS nanoparticles and N in CNS/N-rGO strongly interact with polysulfides, whereas graphene, as a conductive network, can improve its electrical conductivity. A CNS/N-rGO/sulfur composite cathode was prepared via the sulfur melting diffusion method. The electrochemical study showed that the CNS/N-rGO/sulfur cathode delivered an initial discharge capacity of 1430 mA h g-1 at a current density of 0.1C. Moreover, it retained a specific capacity of 685 mA h g-1 after 300 cycles at 0.5C with a coulombic efficiency of 98%, which was better than that of commercial rGO. This composite was used as a sulfur cathode for a lithium-sulfur battery, exhibiting excellent rate capability and remarkable performance in terms of long cycling stability.

AB - Herein, three-dimensional (3D) N-doped reduced graphene oxide (N-rGO) nanosheets were decorated with a uniform distribution of Co-Ni-S (CNS) nanoparticles to form the CNS/N-rGO composite as a sulfur host material for lithium-sulfur batteries. The CNS nanoparticles and N in CNS/N-rGO strongly interact with polysulfides, whereas graphene, as a conductive network, can improve its electrical conductivity. A CNS/N-rGO/sulfur composite cathode was prepared via the sulfur melting diffusion method. The electrochemical study showed that the CNS/N-rGO/sulfur cathode delivered an initial discharge capacity of 1430 mA h g-1 at a current density of 0.1C. Moreover, it retained a specific capacity of 685 mA h g-1 after 300 cycles at 0.5C with a coulombic efficiency of 98%, which was better than that of commercial rGO. This composite was used as a sulfur cathode for a lithium-sulfur battery, exhibiting excellent rate capability and remarkable performance in terms of long cycling stability.

UR - http://www.scopus.com/inward/record.url?scp=85073466780&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85073466780&partnerID=8YFLogxK

U2 - 10.1039/c9ra05202j

DO - 10.1039/c9ra05202j

M3 - Article

AN - SCOPUS:85073466780

VL - 9

SP - 32247

EP - 32257

JO - RSC Advances

JF - RSC Advances

SN - 2046-2069

IS - 55

ER -