Silicon/Needle Coke Composites as Efficient Anodes for Lithium Ion Batteries

In this research, a facile method was reported to prepare silicon/carbon composites by heating Si nanosheets and coal-based needle cokes in the assistance of binder glucopyranose. The microstructures and electrochemical performances of samples were analyzed. It was found that Si nanosheets adhered t...

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Main Authors: Xia Jing, Li Shuxiang, Gao Yuan, Zhang Dakui, Li Qiongguang, Wang Yanhong
Format: Article
Language:English
Published: EDP Sciences 2022-01-01
Series:MATEC Web of Conferences
Online Access:https://www.matec-conferences.org/articles/matecconf/pdf/2022/10/matecconf_amme2022_01022.pdf
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author Xia Jing
Li Shuxiang
Gao Yuan
Zhang Dakui
Li Qiongguang
Wang Yanhong
author_facet Xia Jing
Li Shuxiang
Gao Yuan
Zhang Dakui
Li Qiongguang
Wang Yanhong
author_sort Xia Jing
collection DOAJ
description In this research, a facile method was reported to prepare silicon/carbon composites by heating Si nanosheets and coal-based needle cokes in the assistance of binder glucopyranose. The microstructures and electrochemical performances of samples were analyzed. It was found that Si nanosheets adhered to needle cokes forming silicon/carbon composites. Compared with needle cokes, the composites showed higher capacity and initial coulombic efficiency. Also, they improved the cycle stability of silicon materials. The silicon/carbon anode had a reversible capacity of 381.8 mAh/g at a current density of 100 mA/g after 170 cycles. In our work, relatively inexpensive Si nanosheets and coal-based needle cokes with low price were employed as the silicon and carbon sources respectively. Therefore, this method provides a possible strategy to reduce costs of silicon/carbon anodes, accelerating their commercial applications.
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spelling doaj.art-a9bb0b4bc7ac4e71bc5ff5813f4269632022-12-22T04:21:50ZengEDP SciencesMATEC Web of Conferences2261-236X2022-01-013630102210.1051/matecconf/202236301022matecconf_amme2022_01022Silicon/Needle Coke Composites as Efficient Anodes for Lithium Ion BatteriesXia Jing0Li Shuxiang1Gao Yuan2Zhang Dakui3Li Qiongguang4Wang Yanhong5Ansteel Beijing Research Institute CO., LTD.Ansteel Beijing Research Institute CO., LTD.Ansteel Beijing Research Institute CO., LTD.Angang Chemical Technology CO., LTD.Institute of Process Engineering, Chinese Academy of SciencesInstitute of Process Engineering, Chinese Academy of SciencesIn this research, a facile method was reported to prepare silicon/carbon composites by heating Si nanosheets and coal-based needle cokes in the assistance of binder glucopyranose. The microstructures and electrochemical performances of samples were analyzed. It was found that Si nanosheets adhered to needle cokes forming silicon/carbon composites. Compared with needle cokes, the composites showed higher capacity and initial coulombic efficiency. Also, they improved the cycle stability of silicon materials. The silicon/carbon anode had a reversible capacity of 381.8 mAh/g at a current density of 100 mA/g after 170 cycles. In our work, relatively inexpensive Si nanosheets and coal-based needle cokes with low price were employed as the silicon and carbon sources respectively. Therefore, this method provides a possible strategy to reduce costs of silicon/carbon anodes, accelerating their commercial applications.https://www.matec-conferences.org/articles/matecconf/pdf/2022/10/matecconf_amme2022_01022.pdf
spellingShingle Xia Jing
Li Shuxiang
Gao Yuan
Zhang Dakui
Li Qiongguang
Wang Yanhong
Silicon/Needle Coke Composites as Efficient Anodes for Lithium Ion Batteries
MATEC Web of Conferences
title Silicon/Needle Coke Composites as Efficient Anodes for Lithium Ion Batteries
title_full Silicon/Needle Coke Composites as Efficient Anodes for Lithium Ion Batteries
title_fullStr Silicon/Needle Coke Composites as Efficient Anodes for Lithium Ion Batteries
title_full_unstemmed Silicon/Needle Coke Composites as Efficient Anodes for Lithium Ion Batteries
title_short Silicon/Needle Coke Composites as Efficient Anodes for Lithium Ion Batteries
title_sort silicon needle coke composites as efficient anodes for lithium ion batteries
url https://www.matec-conferences.org/articles/matecconf/pdf/2022/10/matecconf_amme2022_01022.pdf
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AT lishuxiang siliconneedlecokecompositesasefficientanodesforlithiumionbatteries
AT gaoyuan siliconneedlecokecompositesasefficientanodesforlithiumionbatteries
AT zhangdakui siliconneedlecokecompositesasefficientanodesforlithiumionbatteries
AT liqiongguang siliconneedlecokecompositesasefficientanodesforlithiumionbatteries
AT wangyanhong siliconneedlecokecompositesasefficientanodesforlithiumionbatteries