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An Innovative Structural Energy Storage Solution using Fly Ash-Cement Composites for Net-zero Energy Buildings
Cement and Concrete Composites ( IF 10.8 ) Pub Date : 2025-01-27 , DOI: 10.1016/j.cemconcomp.2025.105960
Ruidan Liu, Pan Feng, Zhaolong Liu, Long Yuan, Guanghui Tao, Zhenqi Yu, Xiangyu Meng, Jian Chen
Cement and Concrete Composites ( IF 10.8 ) Pub Date : 2025-01-27 , DOI: 10.1016/j.cemconcomp.2025.105960
Ruidan Liu, Pan Feng, Zhaolong Liu, Long Yuan, Guanghui Tao, Zhenqi Yu, Xiangyu Meng, Jian Chen
The rapid advancement of renewable energy highlights the urgent need for safe, cost-effective, and scalable energy storage solutions, particularly for net-zero energy buildings. In this study, we introduce an innovative energy storage solution utilizing fly ash-cement composites (FCS) as multifunctional components. The FCS, incorporating fly ash as a mineral admixture, achieves a refined pore structure and homogeneous air void distribution during early hydration, leveraging the ball-bearing characteristics and pozzolanic effect of fly ash. The optimized FCS, containing 50 wt.% fly ash, exhibited an impressive ionic conductivity of 25.6 mS cm-1 and a compressive strength of 5.5 MPa after just one day of curing. When integrated into structural energy storage systems, it delivers a high specific capacitance of 102.4 mAh g-1 at 0.1 A g-1, an energy density of 73 Wh kg-1, and a power density of 76.3 W kg-1, maintaining 92.9% capacitance retention over 2000 cycles. These results underscore the scalability, cost efficiency, and structural benefits of FCS, offering a promising pathway to integrate energy storage directly into buildings and infrastructure. Moreover, this strategy provides a sustainable, high-value application for large volumes of industrial solid waste while addressing energy challenges in extreme environments such as deep-sea, deep-earth, and extraterrestrial constructions.
中文翻译:
一种使用粉煤灰-水泥复合材料用于净零能耗建筑的创新结构储能解决方案
可再生能源的快速发展凸显了对安全、经济高效且可扩展的储能解决方案的迫切需求,尤其是对于净零能耗建筑。在本研究中,我们介绍了一种利用粉煤灰-水泥复合材料 (FCS) 作为多功能组件的创新储能解决方案。FCS 将粉煤灰作为矿物外加剂,利用粉煤灰的滚珠轴承特性和火山灰效应,在早期水化过程中实现了精细的孔隙结构和均匀的空隙分布。优化的 FCS 含有 50 wt.% 的粉煤灰,在固化仅一天后就表现出令人印象深刻的 25.6 mS cm-1 离子电导率和 5.5 MPa 的抗压强度。当集成到结构储能系统中时,它在 0.1 A g-1 时提供 102.4 mAh g-1 的高比电容,能量密度为 73 Wh kg-1,功率密度为 76.3 W kg-1,在 2000 次循环中保持 92.9% 的电容保持。这些结果强调了 FCS 的可扩展性、成本效益和结构优势,为将储能直接集成到建筑物和基础设施中提供了一条有前途的途径。此外,该策略为大量工业固体废物提供了可持续的高价值应用,同时解决了深海、深地和外星建筑等极端环境中的能源挑战。
更新日期:2025-01-28
中文翻译:
一种使用粉煤灰-水泥复合材料用于净零能耗建筑的创新结构储能解决方案
可再生能源的快速发展凸显了对安全、经济高效且可扩展的储能解决方案的迫切需求,尤其是对于净零能耗建筑。在本研究中,我们介绍了一种利用粉煤灰-水泥复合材料 (FCS) 作为多功能组件的创新储能解决方案。FCS 将粉煤灰作为矿物外加剂,利用粉煤灰的滚珠轴承特性和火山灰效应,在早期水化过程中实现了精细的孔隙结构和均匀的空隙分布。优化的 FCS 含有 50 wt.% 的粉煤灰,在固化仅一天后就表现出令人印象深刻的 25.6 mS cm-1 离子电导率和 5.5 MPa 的抗压强度。当集成到结构储能系统中时,它在 0.1 A g-1 时提供 102.4 mAh g-1 的高比电容,能量密度为 73 Wh kg-1,功率密度为 76.3 W kg-1,在 2000 次循环中保持 92.9% 的电容保持。这些结果强调了 FCS 的可扩展性、成本效益和结构优势,为将储能直接集成到建筑物和基础设施中提供了一条有前途的途径。此外,该策略为大量工业固体废物提供了可持续的高价值应用,同时解决了深海、深地和外星建筑等极端环境中的能源挑战。