Abstract
Lithium/sulfur battery (LSB) is considered as one of the most promising battery systems due to its high energy density of 2600 Wh kg−1. Nevertheless, the LSB suffers from some inherent problems that impede its practical application. To circumvent these problems, we grow carbon-coated ferroferric oxide (Fe3O4) nanoparticles on graphene (Fe3O4@C-G) as an effective sulfur host for LSB via a facile hydrothermal method followed by calcination. Highly conductive graphene is utilized to homogeneously deposit the carbon-coated Fe3O4 nanoparticles (Fe3O4@C), which enable rapid and steady long-distance electron transport. Moreover, the carbon coated particles of Fe3O4@C exhibit a developed micro-mesoporous structure, which not only provide space for sulfur loading to prepare a composite Sulfur/carbon-coated Fe3O4 nanoparticles on graphene (S/Fe3O4@C-G) cathode, but also provide channels for the interaction between Fe3O4 and lithium polysulfides. Furthermore, a strong chemical affinity of Fe3O4 nanoparticles coated by micro-mesoporous carbon layers towards polysulfides can be strengthened through the polar-polar interaction. Owning these advantages, the S/Fe3O4@C-G composite cathode deliver a high initial capacity of 1425 mAh g−1 at 0.2 C and maintain a capacity of 1102 mAh g−1 after 100 cycles.
| Original language | English |
|---|---|
| Article number | 226901 |
| Journal | Journal of Power Sources |
| DOIs | |
| Publication status | Published - Oct 15 2019 |
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Keywords
- Lithium/sulfur battery
- Polar FeO
- Polysulfide trapping
- S/FeO@C-graphene composite cathode
ASJC Scopus subject areas
- Renewable Energy, Sustainability and the Environment
- Energy Engineering and Power Technology
- Physical and Theoretical Chemistry
- Electrical and Electronic Engineering
Cite this
Synthesis of carbon coated Fe3O4 grown on graphene as effective sulfur-host materials for advanced lithium/sulfur battery. / Li, Haipeng; Wang, J.; Zhang, Yongguang; Wang, Yong; Mentbayeva, Almagul; Bakenov, Zhumabay.
In: Journal of Power Sources, 15.10.2019.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Synthesis of carbon coated Fe3O4 grown on graphene as effective sulfur-host materials for advanced lithium/sulfur battery
AU - Li, Haipeng
AU - Wang, J.
AU - Zhang, Yongguang
AU - Wang, Yong
AU - Mentbayeva, Almagul
AU - Bakenov, Zhumabay
PY - 2019/10/15
Y1 - 2019/10/15
N2 - Lithium/sulfur battery (LSB) is considered as one of the most promising battery systems due to its high energy density of 2600 Wh kg−1. Nevertheless, the LSB suffers from some inherent problems that impede its practical application. To circumvent these problems, we grow carbon-coated ferroferric oxide (Fe3O4) nanoparticles on graphene (Fe3O4@C-G) as an effective sulfur host for LSB via a facile hydrothermal method followed by calcination. Highly conductive graphene is utilized to homogeneously deposit the carbon-coated Fe3O4 nanoparticles (Fe3O4@C), which enable rapid and steady long-distance electron transport. Moreover, the carbon coated particles of Fe3O4@C exhibit a developed micro-mesoporous structure, which not only provide space for sulfur loading to prepare a composite Sulfur/carbon-coated Fe3O4 nanoparticles on graphene (S/Fe3O4@C-G) cathode, but also provide channels for the interaction between Fe3O4 and lithium polysulfides. Furthermore, a strong chemical affinity of Fe3O4 nanoparticles coated by micro-mesoporous carbon layers towards polysulfides can be strengthened through the polar-polar interaction. Owning these advantages, the S/Fe3O4@C-G composite cathode deliver a high initial capacity of 1425 mAh g−1 at 0.2 C and maintain a capacity of 1102 mAh g−1 after 100 cycles.
AB - Lithium/sulfur battery (LSB) is considered as one of the most promising battery systems due to its high energy density of 2600 Wh kg−1. Nevertheless, the LSB suffers from some inherent problems that impede its practical application. To circumvent these problems, we grow carbon-coated ferroferric oxide (Fe3O4) nanoparticles on graphene (Fe3O4@C-G) as an effective sulfur host for LSB via a facile hydrothermal method followed by calcination. Highly conductive graphene is utilized to homogeneously deposit the carbon-coated Fe3O4 nanoparticles (Fe3O4@C), which enable rapid and steady long-distance electron transport. Moreover, the carbon coated particles of Fe3O4@C exhibit a developed micro-mesoporous structure, which not only provide space for sulfur loading to prepare a composite Sulfur/carbon-coated Fe3O4 nanoparticles on graphene (S/Fe3O4@C-G) cathode, but also provide channels for the interaction between Fe3O4 and lithium polysulfides. Furthermore, a strong chemical affinity of Fe3O4 nanoparticles coated by micro-mesoporous carbon layers towards polysulfides can be strengthened through the polar-polar interaction. Owning these advantages, the S/Fe3O4@C-G composite cathode deliver a high initial capacity of 1425 mAh g−1 at 0.2 C and maintain a capacity of 1102 mAh g−1 after 100 cycles.
KW - Lithium/sulfur battery
KW - Polar FeO
KW - Polysulfide trapping
KW - S/FeO@C-graphene composite cathode
UR - http://www.scopus.com/inward/record.url?scp=85069595656&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85069595656&partnerID=8YFLogxK
U2 - 10.1016/j.jpowsour.2019.226901
DO - 10.1016/j.jpowsour.2019.226901
M3 - Article
JO - Journal of Power Sources
JF - Journal of Power Sources
SN - 0378-7753
M1 - 226901
ER -