碳水泥超级电容器作为一个可扩展的批量储能解决方案
Nicolas Chanut1, Damian Stefaniuk1, James C Weaver2
1Department of Civil and Environmental Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139.
概括
研究人员使用水泥和黑碳开发了可扩展的超级电容器,用于储存可再生能源. 这些具有成本效益,高性能的设备提供结构强度和多功能应用,使可持续的能源解决方案成为可能.
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
- 可持续能源 可持续能源
背景情况:
- 可再生能源系统需要高效的储能,以平衡供需.
- 可扩展和具有成本效益的材料对于能源存储解决方案的广泛采用至关重要.
研究的目的:
- 通过使用易于获得的前体,研究一种可扩展的材料用于超级电容器中储能.
- 以碳水泥电极的能量储存能力和速率能力来表征它们.
主要方法:
- 相关EDS-拉曼光谱和电容测量 (循环电压测量,静电电荷放电).
- 整数和分数导数用于速率和电流强度的校正.
- 纹理分析以了解电极结构和特性.
主要成果:
- 用碳水化合物对水泥加,在水泥矩阵内形成一个类似碎形的,导电子的碳网.
- 储能能力是一个密集的量,而高速率能力表现出自我相似性.
- 开发的碳水泥电极表现出高特异性表面积和高效的电荷传输.
结论:
- 储能和速率能力的密集和自我相似性质允许大规模扩展.
- 碳水泥超级电容器为多功能结构提供了一种多功能,可扩展的解决方案.
- 潜在的应用包括能源自主庇护所,自动充电道路和电网规模的能源存储.
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