当前位置: X-MOL 学术Prog. Mater. Sci. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Performance failure mechanisms and mitigation strategies of high-temperature proton exchange membrane fuel cells
Progress in Materials Science ( IF 33.6 ) Pub Date : 2024-10-12 , DOI: 10.1016/j.pmatsci.2024.101389
Shufan Wang, Yun Zheng, Chenhui Xv, Haishan Liu, Lingfei Li, Wei Yan, Jiujun Zhang

As one type of promising electrochemical technologies, high temperature proton exchange membrane fuel cells (HT-PEMFCs) have been widely recognized as the next-generation fuel cell technology for clean energy conversion due to their superiorities of fast electrochemical kinetics, simplified water management, good tolerance to feeding gas contaminants, low emission and high efficiency of energy conversion. However, performance failure during long-term operation still largely hinders their practical application. Accordingly, the explorations of advanced materials and structures, degradation mechanisms and mitigation strategies are attracting intensive attentions for promoting the progress of this technology. In addressing the timely update on the emerging progress regrading long-term durability of HT-PEMFCs, a comprehensive review summarizing the most recent developments of performance failure mechanisms and mitigation strategies for critical components of HT-PEMFCs is presented here. In this paper, the fundamentals involving basic reactions, main components, and development history are first summarized for fundamental understanding; then, the failure analysis and the corresponding mitigation strategies for critical components involving proton exchange membrane, catalytic layer, gas diffusion layer, bipolar plate, and thermal/water management systems are mainly emphasized. Furthermore, the technical challenges are analyzed and the further research directions are also proposed for overcoming the challenges toward practical application of HT-PEMFCs.

中文翻译:


高温质子交换膜燃料电池的性能失效机理及缓解策略



高温质子交换膜燃料电池 (HT-PEMFC) 作为一种前景广阔的电化学技术,因其电化学动力学快、水管理简化、对进料气体污染物耐受性好、排放低、能量转换效率高等优点,被广泛认为是下一代清洁能源转换燃料电池技术。然而,长期运行过程中的性能故障仍然在很大程度上阻碍了它们的实际应用。因此,对先进材料和结构、降解机制和缓解策略的探索正在引起人们的广泛关注,以促进该技术的进步。为了及时更新对 HT-PEMFC 长期耐久性进行重新分级的新进展,本文全面回顾了 HT-PEMFC 关键组件的性能失效机制和缓解策略的最新发展。本文首先总结了涉及基本反应、主要成分和发展历史的基本原理,以便从根本上理解;然后,主要重点介绍了涉及质子交换膜、催化层、气体扩散层、双极板和热/水管理系统的关键部件的失效分析及相应的缓解策略。此外,分析了 HT-PEMFCs 的技术挑战,并提出了进一步的研究方向,以克服 HT-PEMFCs 实际应用的挑战。
更新日期:2024-10-12
down
wechat
bug