高能量密度的碳水泥超级电容器用于建筑储能储能
Damian Stefaniuk1, James C Weaver1, Franz-Josef Ulm1
1Department of Civil and Environmental Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139.
导电子碳混凝土 (ecˆ3) 具有强大的机械性能和电化学能量储存. 这项研究可视化了其纳米级网络,提高了能源密度的十倍,并使可扩展的高压混凝土能源基础设施成为可能.
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
- 土木工程 土木工程是指土木工程.
背景情况:
- 导电子碳混凝土 (ecˆ3) 是一种新的基于水泥的复合材料,具有结合的机械和能量储存能力.
- 了解结构功能关系对于将ecˆ3从概念验证扩展到可行能源存储至关重要.
研究的目的:
- 为了研究 ecˆ3 的导电碳网络的纳米级连接性.
- 探索电解质成分和整合策略,以提高性能和可扩展性.
- 制定一张路线图,将生态技术转化为大规模应用.
主要方法:
- FIB-SEM断层扫描可视化纳米级碳黑网络.
- 造电解质方法用于快速制造厚电极.
- 开发一个用于设备扩展的分析模型.
主要成果:
- 视觉化了透的碎形状的纳米碳黑网络,提供了对理论容量的洞察.
- 通过造电解质方法,在不经过后固化的情况下实现了一厘米厚的电极.
- 用电极厚度和细胞数量证明了设备性能的线性缩放.
- 与以前的设计相比,超级电容器能量密度增加了10倍.
- 制造了一个12V,50F超级电容模块和一个9V弧形原型.
结论:
- 该研究提供了对ecˆ3.3的纳米结构和功能的关键见解.
- 造电解质方法和证明的缩放使得生产大规模的高压混凝土储能装置成为可能.
- 在承载元件中集成的能量存储为结构健康监测和先进基础设施提供了潜力.
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