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AlF₃-Modified carbon nanofibers as a multifunctional 3D interlayer for stable lithium metal anodes
- Guo, Cheng, Yang, Huijun, Naveed, Ahmad, Nuli, Yanna, Yang, Jun, Cao, Yuliang, Yang, Hanxi, Wang, Jiulin
- Chemical communications 2018 v.54 no.60 pp. 8347-8350
- anodes, batteries, carbon nanofibers, chemical reactions, electrolytes, lithium, longevity, modulus of elasticity
- 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.