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阳极和水泥的整合:解锁可扩展的储能系统
Zhaolong Liu1, Pan Feng1, Ruidan Liu1
1Jiangsu Key Laboratory of Construction Materials, School of Materials Science and Engineering, Southeast University, Nanjing 211189, China.
National science review
|October 2, 2024
概括
研究人员通过将离子混合超级电容器集成到水泥砂中来开发结构性储能. 这项创新为建筑物创造了承载超级电容器,为可再生能源整合提供了可扩展的解决方案.
科学领域:
- 材料科学与工程 材料科学与工程
- 电化学 电化学 电化学
- 可持续建筑 可持续建筑
背景情况:
- 现有的建筑物和基础设施为集成能源存储提供了巨大的未开发潜力.
- 传统的储能解决方案往往是重的,并且与结构部件分开.
- 水泥砂是一种无处不在的结构材料,为功能整合提供了机会.
研究的目的:
- 提出和开发一种新的结构性和可扩展的储能系统.
- 将安全且具有成本效益的离子混合超级电容器集成到水泥砂中.
- 为了设计具有双重功能的水泥砂:离子导电性和承载能力.
主要方法:
- 开发了一种空气化水泥砂,采用空气吸入和受控的电解质反应,具有多层次孔隙结构.
- 通过使用定制的水泥砂,金属阳极和活性碳阴极,设计了一种混合超级电容构建块.
- 评估了超级电容器的性能,包括能量密度,循环稳定性和燃烧时的安全性.
主要成果:
- 实现了特殊的特定能量密度 (71.4 Wh kg−1) 和高面积能量密度 (2.0 Wh m−2).
- 证明了良好的循环稳定性,在1000个循环后保持~92%的容量.
- 证实了特殊的安全性,经受住了1小时的燃烧试验.
结论:
- 开发的结构性储能系统集成到水泥砂中,提供承载和储能的双重功能.
- 这个系统的可扩展性,当与太阳能发电相结合时,显示出可能彻底改变建筑集成能源存储的潜力.
- 这种创新方法为下一代智能建筑铺平了道路,具有固有的储能能力.
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