用KOH激活的微米厚无形碳纳米泡作为一种无粘合剂的超级电容电极,具有高速性能
Subrata Ghosh1,2, Yifan Zhang1, Giacomo Pagani1
1Micro and Nanostructured Materials Laboratory - NanoLab, Department of Energy, Politecnico di Milano, via Lambruschini, Milano, 20156, Italy. carlo.casari@polimi.it.
概括
研究人员使用活性碳纳米泡开发了一种新的水性超级电容器. 这种先进的储能装置提供了高电容和电压稳定性,以提高性能.
科学领域:
- 材料科学 材料科学 材料科学
- 电化学 电化学 电化学
- 储能 储能 储能 储能 储能 储能
背景情况:
- 超级电容器对于储能至关重要.
- 开发高效和稳定的电极材料是关键.
- 水性电解质提供安全性和成本优势.
研究的目的:
- 为了展示一个水性超级电容器.
- 为了利用独立的,多孔的,水性活化碳纳米泡作为电极材料.
- 为了评估制造的超级电容器的电化学性能.
主要方法:
- 一个26μm厚的活性碳纳米泡电极的制造.
- 一个水性超级电容器装置的组装.
- 电化学表征包括电容和速率能力测量.
主要成果:
- 超级电容器实现了 95.4 mF/cm2 (18.3 F/cm3) 的面积电容.
- 在20 mA时观察到103%的优异电容保留.
- 该设备在1V的电压下稳定运行,性能优于控制器.
结论:
- 开发的活性碳纳米泡是高性能水性超级电容器的一个有希望的材料.
- 纳米泡的独立性,多孔性,水友性质有助于优越的电化学性能.
- 这项工作促进了高效和稳定的储能解决方案的开发.
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