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Three-Dimensional CNT/Graphene–Li 2 S Aerogel as Freestanding Cathode for High-Performance Li–S Batteries
Abstract
Three-dimensional (3D) CNT/graphene-Li 2 S (3DCG–Li 2 S) cathodes with 81.4 wt % record Li 2 S loading have been realized through solvothermal reaction and a subsequent liquid-infiltration-evaporation coating method. The highly flexible, conductive 3D mesoporous interconnected network based on two-dimensional (2D) graphene nanosheets and one-dimensional (1D) carbon nanotubes (CNTs) provides highly efficient channels for electron transfer and ionic diffusion, and leads to a low solubility of polysulfides in electrolytes in charges/discharges. Without polymeric binders or conductive additives, the freestanding 3DCG–Li 2 S cathode exhibits record electrochemical performances including reversible discharge capacities of 1123.6 mAh g –1 and 914.6 mAh g –1, 0.02% long-term capacity decay per cycle and a high-rate capacity of 514 mAh g –1 at 4 C. The reported 3DCG–Li 2 S aerogel with ultrahigh Li 2 S content presents promising application potentials in high-performance Li–S batteries.
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Fabricating graphene-based hybrid aerogels, in which other nanostructures or functional materials are introduced into the graphene framework, is a promising solution to reinforce the network structure and improve performance.
“One of the promising solutions is to fabricate graphene-based hybrid aerogels, in which other nanostructures or functional materials are introduced into the graphene framework to reinforce the network structure and improve performance [38–40].”
From Graphene/graphene nanoribbon aerogels as tunable three-dimensional framework for efficient hydrogen evolution reaction (2017) · cites this paper as [40]
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Sun, Z., Fan, W., & Liu, T. (2017) · Electrochimica Acta · doi:10.1016/j.electacta.2017.08.009 · Cited by 48
Metadata
- Authors
- He, J., Chen, Y., Lv, W., Wen, K., Xu, C., Zhang, W., Qin, W., & He, W.
- Affiliations
- University of Electronic Science and Technology of China (CN)
- National Engineering Laboratory for Biomass Power Generation Equipment, School of Renewable Energy Engineering, North China Electric Power University, Beijing 102206, P. R. China
- Peking University (CN)
- Corresponding author
- Chen, Yuanfu
- He, Weidong
- Venue
- ACS Energy Letters
- Publisher
- American Chemical Society (ACS)
- Published
- 2016-09-26
- Volume
- 1
- Issue
- 4
- Pages
- 820-826
- ISSN
- 2380-8195 (ISSN-L)
- OpenAlex
- W2523684085
- Cited by
- 172
- References
- 0
- Citations by year
- 2026: 3 · 2025: 11 · 2024: 18 · 2023: 9 · 2022: 10 · 2021: 21 · 2020: 19 · 2019: 35 · 2018: 27 · 2017: 16 · 2016: 3
- FWCI
- 12.45
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- ACS Energy Letters (publishedVersion)
- Funders
- State Administration of Foreign Experts Affairs (B13042)
- Ministry of Education of the People's Republic of China (20120185120011, B13042, ZYGX2013Z001, ZYGX2014J088, ZYGX2015Z003)
- Ministry of Science and Technology of the People's Republic of China (2015AA034202)
- Deutsche Forschungsgemeinschaft (201400260068)
- National Natural Science Foundation of China (201400260068, 21403031, 51202022, 51372033, 61378028)
- Sichuan Province (2016GZ0151)
- Science and Technology Innovation Research Team of Sichuan Province (2011JTD0006)
- Topics
- Physical Sciences › Engineering › Electrical and Electronic Engineering › Advanced Battery Materials and Technologies
- Physical Sciences › Engineering › Electrical and Electronic Engineering › Advancements in Battery Materials
- Physical Sciences › Engineering › Electrical and Electronic Engineering › Aqueous and Flow Batteries
- Keywords
- lithium-sulfur batteries, Li2S cathode, carbon nanotubes, graphene, aerogels, solvothermal synthesis, polysulfide solubility, binder-free electrodes, mesoporous structure
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