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

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

Chem Commun (Camb). 2018 Jul 24;54(60):8347-8350. doi: 10.1039/c8cc04422h.

Authors

Cheng Guo¹, Huijun Yang, Ahmad Naveed, Yanna Nuli, Jun Yang, Yuliang Cao, Hanxi Yang, Jiulin Wang

Affiliation

¹ Shanghai Electrochemical Energy Devices Research Center, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China. wangjiulin@sjtu.edu.cn.

PMID: 29993053
DOI: 10.1039/c8cc04422h

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.