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用于低碳自动供电建筑的高性能生物启发可充电水泥电池
Qiang Cai1, Junyuan Guo1, Rui Zhang2
1Key Laboratory of Advanced Civil Engineering Materials of Ministry of Education, School of Materials Science and Engineering, Tongji University, Shanghai, 201804, China.
Advanced materials (Deerfield Beach, Fla.)
|June 19, 2025
概括
生物灵感的基于水泥的电池具有对齐的孔隙,提供增强的离子传输和耐用性. 这些可持续的储能解决方案集成了自动供电建筑的承载功能.
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
- 可持续建筑技术 可持续建筑技术
背景情况:
- 基于水泥的电池 (CEMB) 整合了可持续建筑的储能和结构功能.
- 由于离子运输扭曲性和接口动力学,有限的容量和周期寿命阻碍了CEMB应用.
研究的目的:
- 通过设计垂直对齐的孔道来克服CEMB的性能限制.
- 为了提高离子传输和电化学性能,同时保持机械完整性.
主要方法:
- 模仿针叶木气管的生物灵感设计被用于在水泥基质中创建垂直对齐的孔隙.
- 评估了电化学性能 (容量,循环寿命,导电性) 和机械强度.
主要成果:
- 生物灵感设计使离子输送曲率从7.80降低到2.86,使离子导电率增加四倍至32.7mS cm-1.1.
- CEMB的容量达到了114 mAh g-1 ,在300个循环后保持了63.2%,超过了传统的CEMB.
- 机械强度保持在41.6MPa,并证明了双重功能 (充电和承载).
结论:
- 具有对齐毛孔的生物灵感设计显著提高了CEMB的性能和耐用性.
- 这种方法为自动供电,可持续的建筑提供了一个可扩展的解决方案.
- 对于将能源储存直接集成到建筑结构中来说,CEMB是有前途的.
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