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Superdry Poly(vinylidene Fluoride-co-hexafluoropropylene) Coating on a Lithium Anode as a Protective Layer and Separator for a High-performance Lithium-oxygen Battery by Ting-Nan Hsia; Hsin-Chun Lu; Yu-Chih Hsueh; Selvaraj Rajesh Kumar; Chien-Sheng Yen; Chun-Chen Yang; Shingjiang Jessie Lue is a Chemistry article available to read on EtoBox.
What is Superdry Poly(vinylidene Fluoride-co-hexafluoropropylene) Coating on a Lithium Anode as a Protective Layer and Separator for a High-performance Lithium-oxygen Battery about?
In this study, a dense polyvinylidene fluoride-hexafluoropropylene (PVDF-HFP) coating is fabricated on a lithium (Li) anode sheet, which acts as a synergistic protective layer and electrolyte separator for Li-oxygen (Li-O) batteries. This thin coating is dried through slow solvent evaporation and vacuum drying methods. The solvent-free, dense PVDF-HFP coating has a thickness of 45 μm and can absorb 62% of electrolyte. The battery containing the PVDF-HFP coating demonstrates a maximum peak power density of 3 mW cm, significantly higher than that of the battery with the PVDF coating (0.8 mW cm) but lower than that without coating (equipped with a commercial glass fiber separator, 7.3 mW cm). However, the PVDF-HFP coating enables the Li-O battery to reach a capacity of 4400 mA h g, much higher than that without the coating (glass fiber separator, 850 mA h g). The symmetric Li-Li cells further confirm steady and low overpotentials using the anode coating at a high current density of 1.0 mA cm, indicating stable Li plating/stripping process. The PVDF-HFP-coated battery has a longer cycling lifetime (1700 h) than those with the PVDF coating (120 h) and a glass fiber separator (670 h). Th
Who reads Superdry Poly(vinylidene Fluoride-co-hexafluoropropylene) Coating on a Lithium Anode as a Protective Layer and Separator for a High-performance Lithium-oxygen Battery?
It is typically read by researchers, students, and practitioners in Chemistry.
- Author
- Ting-Nan Hsia; Hsin-Chun Lu; Yu-Chih Hsueh; Selvaraj Rajesh Kumar; Chien-Sheng Yen; Chun-Chen Yang; Shingjiang Jessie Lue
- Publisher
- Elsevier BV
- Published
- 2022
- Language
- EN
- Field
- Chemistry (Physical Sciences)