用于高效的有机高功率储能的生物基聚乙烯
Florian Le Goupil1, Victor Salvado1, Valère Rothan1
1Laboratoire de Chimie des Polymères Organiques (LCPO UMR 5629), Université de Bordeaux, CNRS, 16 Avenue Pey-Berland, Bordeaux INP, 33607 Pessac Cedex, France.
Journal of the American Chemical Society
|February 17, 2023
概括
完全生物基的聚氨酸为储能提供了可持续的解决方案. 这些材料提供了与石化替代品相比较高的能量密度和效率,为绿色技术铺平了道路.
科学领域:
- 材料科学
- 能量储存
- 聚合物化学
背景情况:
- 可持续能源需要有效的储能来管理间歇性.
- 有机聚合物被探索为高功率电容器的可扩展和绿色介电材料.
- 现有材料往往依赖于石化来源, 这凸显了生物替代品的需要.
研究的目的:
- 为高性能储能应用合成和表征完全生物基的聚乙 (PHU).
- 评估合成的PHU的介电性质,包括电容性和分解强度.
- 评估生物基PHU作为电容介电物的储能性能和效率.
主要方法:
- 通过与生物基二碳酸盐和生物基二胺反应合成生物基PHU.
- PHU的特性:玻璃过渡温度 (Tg),电容性 (εr),分解强度 (EB) 和介电损耗 (tan δ).
- 评估储能性能,包括排放能量密度 (Ue) 和排放效率 (η).
主要成果:
- 合成的完全生物基的PHU,其玻璃过渡温度 (Tg) 约为50°C.
- 达到高的导电性 (εr > 8) 和破裂强度 (EB > 400 MV·m-1).
- 证明了低压电损失 (tan δ < 0.03) 和高放电能量密度 (Ue > 6 J·cm-3).
- 具有优异的排放效率 (η=85%在EB,高达91%在0.5EB).
结论:
- 生物基的PHU在高功率电容应用中表现出有希望的介电性质.
- 合成的PHU具有与石化材料相美的储能性能.
- 这些生物材料是绿色储能解决方案的可持续和高效途径.
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