通过对高效率的统一再生燃料电池的水友模式来调节多孔运输层上的水运输路径
Sung Min Lee1, Keun Hwan Oh1, Hwan Yeop Jeong1
1Hydrogen Energy Research Center, Korea Research Institute of Chemical Technology (KRICT), 141 Gajeong-ro, Yuseong-gu, Daejeon, 305-600, Republic of Korea.
Nano-micro letters
|March 17, 2025
概括
这项研究引入了一种新的方法,用于对统一再生燃料电池 (URFC) 中多孔输送层 (PTL) 的水友性模式进行对齐. 这种调整改善了水和气体管理,以提高储能效率.
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:
- 统一再生燃料电池 (URFC) 为可再生能源储能提供了前景.
- 由于水资源管理和天然气运输的同时存在挑战,URFC的高效运行受到阻碍.
- 在URFC中现有的水资源管理方法需要大幅改进.
研究的目的:
- 为了研究多孔运输层 (PTLs) 上的水友性图案与双极板 (BP) 流场的对齐.
- 开发一种低成本和可扩展的方法来创建两性PTL.
- 加强URFC中的水和气体运输,以提高往返运输效率.
主要方法:
- 紫外线/臭氧图案被用于在化PTL上创建两性特征.
- 使用电化学方法和计算模拟来分析模式对齐.
- 评估了与蛇形流场对齐的蛇形图案 (SP) PTL 的 URFC 的性能.
主要成果:
- 蛇形图案 (SP) Ti PTL,与BP蛇形流场保持一致,有效地改善了水电解剂 (WE) 模式中的氧气去除.
- 这种配置在燃料电池 (FC) 模式下减轻了水泛滥,确保了连续的水和气体流.
- 使用SP配置的URFC显著提高了往返效率 (25.7%在2A cm-2).
结论:
- 在Ti PTL上优化水友模式和对齐对于URFC中高效的水和气体管理至关重要.
- 开发的紫外线/臭氧图案技术提供了一个可扩展和具有成本效益的制造方法.
- SP Ti PTL设计在WE和FC模式中提高了URFC性能,为先进的储能解决方案铺平了道路.
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