AlF3-Modified carbon nanofibers as a multifunctional 3D interlayer for stable lithium metal anodes

Cheng Guo; Huijun Yang; Ahmad Naveed; Yanna Nuli; Jun Yang; Yuliang Cao; Hanxi Yang; Jiulin Wang

doi:10.1039/C8CC04422H

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AlF₃-Modified carbon nanofibers as a multifunctional 3D interlayer for stable lithium metal anodes†

Cheng Guo,^a Huijun Yang,^a Ahmad Naveed,^a Yanna Nuli,

^a Jun Yang,

^a Yuliang Cao,

^b Hanxi Yang^b and Jiulin Wang

*^a

Author affiliations

* Corresponding authors

^a Shanghai Electrochemical Energy Devices Research Center, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
E-mail: wangjiulin@sjtu.edu.cn

^b College of Chemistry and Molecular Science, Wuhan University, Wuhan, China

Abstract

A versatile interlayer in which AlF₃ particles are embedded within carbon nanofibers (AlF₃@CNFs) is reported to induce controllable Li⁺ deposition and achieve a dendrite free Li metal anode. Due to the AlF₃ reducing Li nucleation overpotential and CNFs providing high Young's moduli up to 47 GPa, a high Coulombic efficiency (97.2%) and a long lifespan (900 h) are achieved in the carbonate-based electrolyte. A long cycling life is also realized by using interlayer-protected lithium anodes in Li–S batteries.

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Article information

DOI: https://doi.org/10.1039/C8CC04422H
Article type: Communication
Submitted: 02 Jun 2018
Accepted: 28 Jun 2018
First published: 03 Jul 2018

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Chem. Commun., 2018,54, 8347-8350

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AlF₃-Modified carbon nanofibers as a multifunctional 3D interlayer for stable lithium metal anodes

C. Guo, H. Yang, A. Naveed, Y. Nuli, J. Yang, Y. Cao, H. Yang and J. Wang, Chem. Commun., 2018, 54, 8347 DOI: 10.1039/C8CC04422H

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Chemical Communications