Fe 3 O 4 -PVDF Composite Network for Dendrite-Free Lithium Metal Batteries.
- Resource Type
- Article
- Authors
- Ou, Yun; Ma, Chaoyong; Tang, Zhiyong; Yao, Chenqi; Zhao, Yunzhuo; Cheng, Juanjuan
- Source
- Nanomaterials (2079-4991). Oct2023, Vol. 13 Issue 20, p2782. 12p.
- Subject
- *IRON oxides
*LITHIUM cells
*LITHIUM sulfur batteries
*DENDRITIC crystals
*LITHIUM
*DENDRITES
- Language
- ISSN
- 2079-4991
Dendrite growth has been the main trouble preventing the practical application of Li metal anodes. Herein, we present how an Fe3O4-PVDF composite network prepared by using electrospinning has been designed to protect lithium metal anodes effectively. In the symmetrical cells test, the cell with the Fe3O4-PVDF composite network maintains good cycle performance after 600 h (500 cycles) at a current density of 1 mA cm−2 and a plating/stripping capacity of 1 mAh cm−2. The bulky Li dendrite is suppressed and a uniform Li deposition remains after long cycling. The characteristics of this engineered separator are further demonstrated in Li-S full cells with a good cycle performance (capacity of 419 mAh g−1 after 300 cycles at 0.5 C). This work provides a new idea for the protection of lithium metal anodes. [ABSTRACT FROM AUTHOR]