Fe<sub>3</sub>O<sub>4</sub>-PVDF Composite Network for Dendrite-Free Lithium Metal Batteries
Dendrite growth has been the main trouble preventing the practical application of Li metal anodes. Herein, we present how an Fe<sub>3</sub>O<sub>4</sub>-PVDF composite network prepared by using electrospinning has been designed to protect lithium metal anodes effectively. In...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2023-10-01
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| Series: | Nanomaterials |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2079-4991/13/20/2782 |
| Summary: | Dendrite growth has been the main trouble preventing the practical application of Li metal anodes. Herein, we present how an Fe<sub>3</sub>O<sub>4</sub>-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 Fe<sub>3</sub>O<sub>4</sub>-PVDF composite network maintains good cycle performance after 600 h (500 cycles) at a current density of 1 mA cm<sup>−2</sup> and a plating/stripping capacity of 1 mAh cm<sup>−2</sup>. 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<sup>−1</sup> after 300 cycles at 0.5 C). This work provides a new idea for the protection of lithium metal anodes. |
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| ISSN: | 2079-4991 |