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1 February 2024 Carbon nanotube-reinforced poplar leaf-derived porous carbon materials as sulfur carriers for high-performance lithium-sulfur batteries
Jianwei Wang, Han Wang, Kai Fan, Kunkun Hu, Zhongchao Bai
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Proceedings Volume 13068, Fifth International Conference on Optoelectronic Science and Materials (ICOSM 2023); 130681E (2024) https://doi.org/10.1117/12.3016256
Event: Fifth International Conference on Optoelectronic Science and Materials (ICOSM 2023), 2023, Hefei, China
Abstract
In this paper, the composite preparation method of carbon nanotubes and porous carbon materials is investigated as a way to obtain composites with good structure and properties. The common plant waste poplar leaves were used as carbon source to prepare electrochemical energy storage devices. Poplar leaf-derived carbon (YSC) has an interconnected framework structure that facilitates ion diffusion and provides space for sulfur redox expansion [1,2]. We doped in situ-grown carbon nanotubes into YSC substrates using melamine as a nitrogen source, and constructed hierarchical porous structures to inhibit the dissolution of polysulfides by combining the carbon nanotube structure with the framework of YSC interconnections in order to further improve their performance. The cycling stability, capacity retention, and electrochemical activity energy of the electrode material were also analyzed at different carbonization temperatures, and the material showed better electrochemical performance. At a current density of 0.5 A/g, a discharge specific capacity of 583.8 mAh/g averaged over 300 turns was realized.
(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.
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Jianwei Wang, Han Wang, Kai Fan, Kunkun Hu, and Zhongchao Bai "Carbon nanotube-reinforced poplar leaf-derived porous carbon materials as sulfur carriers for high-performance lithium-sulfur batteries", Proc. SPIE 13068, Fifth International Conference on Optoelectronic Science and Materials (ICOSM 2023), 130681E (1 February 2024); https://doi.org/10.1117/12.3016256
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KEYWORDS
Carbon
Sulfur
Composites
Carbon nanotubes
Batteries
Porosity
Lithium
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