基于结构水泥的超级电容器具有多功能强度,用于储能
Qingyang Liu1, Fengjuan Wang2, Yu Zhang1
1School of Civil Engineering and Architecture, Shandong University of Science and Technology, Qingdao, 266590, China.
Advanced science (Weinheim, Baden-Wurttemberg, Germany)
|October 14, 2025
概括
一个新的碳水泥超级电容器 (CCS) 提供了强大且具有成本效益的能源存储. 这种突破性的技术证明了可再生能源应用的高容量,耐用性和稳定性.
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:
- 可再生能源的扩张需要高效且负担得起的能源储存.
- 目前以水泥为基础的超级电容器面临容量,强度和稳定性的限制.
- 开发先进的材料对于下一代储能解决方案至关重要.
研究的目的:
- 设计一种具有增强电化学性能和机械强度的新型碳水泥超级电容器 (CCS).
- 解决现有的基于水泥的超级电容器在实际应用中的局限性.
主要方法:
- 通过在90°C的热力学巩固制造一个多孔的碳水泥 (CC) 电极.
- 在现场聚合,在CC电极结构中创建碳黑-水凝网络.
- 与高连接性导电水凝电解质的集成.
主要成果:
- 实现了1708mF cm-2.2的领先面积容量.
- 经过1万个循环后,证明了超过83%的电容保留.
- 在极端负载下表现出高机械强度 (>8 MPa) 和92.2%的电容保持率.
- 在广泛的温度范围 (-20至80°C) 中保持性能,波动最小 (<9%).
- 该CCS设备是不可燃烧的,并显示出可能彻底改变储能系统的潜力.
结论:
- 开发的CCS在储能技术方面取得了重大进展.
- 它的卓越性能和稳定性使其成为可扩展和成本效益高的可再生能源存储的有希望的候选者.
- 这种材料创新可以为更可靠和更持久的储能解决方案铺平道路.
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