跳跃超级电容器性能通过闪光激活的石墨烯光热涂层.
Huihui Zhang1, Han Lin1, Keng-Te Lin2
1Centre for Atomaterials and Nanomanufacturing, RMIT University, Melbourne, VIC, 3000, Australia.
Small (Weinheim an der Bergstrasse, Germany)
|February 28, 2024
概括
研究人员开发了一种通用方法,通过使用闪电式石墨烯 (FG) 吸收器进行光热加热来提高超级电容器 (SC) 的性能. 这种简单的策略可以提高能量储存,而不需要复杂的电极修改.
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:
- 提高工作温度通过改善离子运输动力学来提高超级电容器 (SC) 的性能.
- 光热加热为SC温度增强提供了一种绿色和可持续的方法.
- 对于任意的SC设备来说,一个通用和高效的光热加热策略仍然是一个挑战.
研究的目的:
- 为超级电容器开发一种简单,通用和高效的光热加热策略.
- 通过光热效应提高超级电容器的储能性能.
- 为了研究闪光式石墨烯 (FG) 作为超级电容器的光热吸收器的应用.
主要方法:
- 通过闪光减光工艺制造可闪光的石墨烯 (FG) 吸收器.
- 将FG吸收器涂在超级电容器设备的表面上.
- 对超级电容性能进行系统的温度依赖性调查和数值模拟.
- 利用光热效应提高超级电容器的工作温度.
主要成果:
- 在光热增强的SC硬币电池设备中,可达65%的电容明显增强.
- 闪光式石墨烯 (FG) 吸收器通过光热效应有效地提高了SCs的工作温度.
- 在FG增强的超级电容器中观察到更好的功率和能量密度.
结论:
- 开发的基于FG的光热策略提供了一种简单,实用和通用的方法来提高SC的性能.
- 这种方法可以增强能量储存,而不会增加电极制造或优化的复杂性.
- 该研究强调了绿色光热能对储能设备的高效利用.
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