Flexible electrospun FeCo/carbon hybrid nanofiber films as binder-free anodes for enhanced lithium storage performance

doi:10.1016/j.electacta.2023.142420

IMR OpenIR

	Flexible electrospun FeCo/carbon hybrid nanofiber films as binder-free anodes for enhanced lithium storage performance
	Li, Xiaoqiang 1,2; Cheng, Bingjie 1; Guan, Guangguang 3,4; Zhang, Xueke 1; Zhang, Kaiyin 5; Xiang, Jun 1
通讯作者	Xiang, Jun(jxiang@just.edu.cn)
	2023-06-20
发表期刊	ELECTROCHIMICA ACTA
ISSN	0013-4686
卷号	454 页码:9
摘要	The design of electrodes with excellent mechanical elasticity is the significant to developing flexible electronic devices with mechanical endurance and outstanding lithium storage properties. Herein, the flexible FeCo/carbon hybrid nanofiber membranes (named as FeCo@CNFM) were successfully prepared via electrospinning and subsequent carbonization process. From the macroscopic perspective, the FeCo@CNFM can bend at a large angle without any destruction, and be directly used as working electrode of lithium ions batteries (LIBs) without any expensive additives, demonstrating its extraordinary mechanical flexibility. From the microscopic perspective, the homogeneously dispersed fine FeCo nanoparticles and the three-dimensional (3D) interconnected transport network constructed of carbon nanofibers significantly shorten the lithium-ion transfer distance, eliminate the volume fluctuation during lithiation/delithiation process, enhance the utilization rate of active materials, and promote the electrical conductivity of the composite electrode, thus leading to remarkably improved electrochemical properties. As a consequence, the optimized FeCo@CNFM manifests a superior discharge capacity of 584.9 mA h g- 1 at 100 mA g- 1 after 100 cycles with long cycling stability and good rate capability of 227.1 mA h g- 1 even at a large current rate of 2 A g- 1, making it a promising flexible self-supporting anode for LIBs.
关键词	Binder-free anode 3D conductive network Carbon nanofibers FeCo nanoparticles Lithium-ion battery
资助者	Natural Science Foundation of Fujian Province, China ; Postgraduate Research & Practice Innovation Program of Jiangsu Province, China
DOI	10.1016/j.electacta.2023.142420
收录类别	SCI
语种	英语
资助项目	Natural Science Foundation of Fujian Province, China[2020J01393] ; Postgraduate Research & Practice Innovation Program of Jiangsu Province, China[KYCX22- 3816]
WOS研究方向	Electrochemistry
WOS类目	Electrochemistry
WOS记录号	WOS:000989510300001
出版者	PERGAMON-ELSEVIER SCIENCE LTD
引用统计	被引频次：6[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/177856
专题	中国科学院金属研究所
通讯作者	Xiang, Jun
作者单位	1.Jiangsu Univ Sci & Technol, Sch Sci, Zhenjiang 212100, Peoples R China 2.Beijing Univ Technol, Inst Mat Sci & Engn, Beijing 100124, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 4.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 5.Wuyi Univ, Coll Mech & Elect Engn, Wuyishan 354300, Peoples R China
推荐引用方式 GB/T 7714	Li, Xiaoqiang,Cheng, Bingjie,Guan, Guangguang,et al. Flexible electrospun FeCo/carbon hybrid nanofiber films as binder-free anodes for enhanced lithium storage performance[J]. ELECTROCHIMICA ACTA,2023,454:9.
APA	Li, Xiaoqiang,Cheng, Bingjie,Guan, Guangguang,Zhang, Xueke,Zhang, Kaiyin,&Xiang, Jun.(2023).Flexible electrospun FeCo/carbon hybrid nanofiber films as binder-free anodes for enhanced lithium storage performance.ELECTROCHIMICA ACTA,454,9.
MLA	Li, Xiaoqiang,et al."Flexible electrospun FeCo/carbon hybrid nanofiber films as binder-free anodes for enhanced lithium storage performance".ELECTROCHIMICA ACTA 454(2023):9.