Plasma enhanced reduction method for synthesis of reduced graphene oxide fiber/Si anode with improved performance

Yihong Li ¹Zhong Qiu ¹Lei Huang ¹Shenghui Shen ²Ping Liu ¹Haomiao Zhang ³Feng Cao ⁴Xinping He ⁵Jun Zhang ⁵Yang Xia ⁵Xinqi Liang ⁶Chen Wang ⁷Wangjun Wan ⁷Yongqi Zhang ⁸Minghua Chen ⁹Wenkui Zhang ⁵Hui Huang ⁵Yongping Gan ⁵Xinhui Xia¹⁰

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作者信息

1. School of Materials Science & Engineering,Zhejiang University,Hangzhou 310027,China;College of Materials Science and Engineering,Zhejiang University of Technology,Hangzhou 310014,China
2. School of Materials Science and & Engineering,Zhejiang Sci-Tech University,Hangzhou 310018,China
3. School of Materials Science & Engineering,Zhejiang University,Hangzhou 310027,China
4. Department of Engineering Technology,Huzhou College,Huzhou 313000,China
5. College of Materials Science and Engineering,Zhejiang University of Technology,Hangzhou 310014,China
6. Institute of Fundamental and Frontier Science,University of Electronic Science and Technology of China,Chengdu 611371,China;Key Laboratory of Engineering Dielectric and Applications(Ministry of Education),School of Electrical and Electronic Engineering,Harbin University of Science and Technology,Harbin 150080,China
7. Zhejiang Academy of Science and Technology for Inspection & Quarantine,Hangzhou 311215,China
8. Institute of Fundamental and Frontier Science,University of Electronic Science and Technology of China,Chengdu 611371,China
9. Key Laboratory of Engineering Dielectric and Applications(Ministry of Education),School of Electrical and Electronic Engineering,Harbin University of Science and Technology,Harbin 150080,China
10. School of Materials Science & Engineering,Zhejiang University,Hangzhou 310027,China;College of Materials Science and Engineering,Zhejiang University of Technology,Hangzhou 310014,China;State Key Laboratory of Photocatalysis on Energy and Environment,Fuzhou University,Fuzhou 350116,China
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Abstract

Silicon(Si)is considered as one of the most promising anode materials for advanced lithium-ion batter-ies due to its high theoretical capacity,environmental friendliness,and widespread availability.However,great challenges such as volumetric expansion,limited ionic/electronic conductivity properties and com-plex manufacturing processes hinder its practical applications.Herein,a novel plasma-enhanced reduced graphene oxide fibers/Si(PrGOFs/Si)composite anode is first proposed by using wet-spinning technology followed by plasma-enhanced reduction method.The PrGOFs provide large space to accommodate the volume expansion of Si nanoparticles(SiNPs)by forming a flexible 3D conductive network.Compared to the conventional thermally reduced graphene oxide fibers/Si(TrGOFs/Si)sample,the PrGOFs/Si anodes demonstrate higher conductivity,specific surface area,and superior fabrication efficiency.Accordingly,the PrGOFs/Si anodes exhibit a reversible capacity of 698.3 mAh/g,and maintain a specific capacity of 602.5 mAh/g at a current density of 200mA/g after 100 cycles,superior to conventional TrGOFs/Si counter-parts.This research presents a novel strategy for the preparation of high-performance Si/carbon anodes for energy storage applications.

Key words

Li ion batteries/Si anode/Plasma/Graphene fibers/Carbon

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出版年

2024

中国化学快报(英文版)

中国化学会

中国化学快报(英文版)

CSTPCDCSCD

影响因子：0.771

ISSN：1001-8417

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