MEA Design Considerations for PEM Water Electrolysis Operated with Renewable Energy Sources
再生可能エネルギーを用いたPEM水電解のMEA設計考慮事項 (AI 翻訳)
Abdurrahman Yilmaz, Sydney Hughes, Chenzhao Li, Z. Yang, Hui Xu
🤖 gxceed AI 要約
日本語
本論文は、再生可能エネルギー由来の電力を用いたPEM水電解（PEMWE）における膜電極接合体（MEA）設計の重要な要素を分析する。動的運転条件下での高効率・高耐久性を実現するため、カソード水素圧力の臨界値と、電極構造・拡散層選択の影響を解明した。最適化されたカソード設計と拡散層により、性能と安全性が向上し、大規模グリーン水素・アンモニア生産への実用的指針を提供する。
English
This paper analyzes critical MEA design considerations for PEM water electrolysis (PEMWE) powered by renewable electricity. It identifies key factors such as cathode hydrogen pressure and its dependence on electrode architecture and diffusion layer selection. Optimized designs improve performance, durability, and safety under dynamic conditions, providing practical guidance for large-scale green hydrogen and ammonia production.
Unofficial AI-generated summary based on the public title and abstract. Not an official translation.
📝 gxceed 編集解説 — Why this matters
日本のGX文脈において
日本は水素基本戦略でグリーン水素のコスト低減と大規模化を推進しており、本論文はMEA設計による性能向上と安全性確保の知見を直接提供する。特に、再生可能エネルギー変動下での運転安定性は、日本の水素サプライチェーン構築に重要である。
In the global GX context
Global green hydrogen scale-up requires durable and efficient electrolyzers. This paper addresses a key gap by examining MEA design for dynamic renewable operation, offering insights applicable to PEMWE stack developers and hydrogen production projects worldwide.
👥 読者別の含意
🔬研究者:Provides quantitative analysis of critical hydrogen pressure and electrode design trade-offs for PEMWE under dynamic conditions.
🏢実務担当者:Offers design guidelines for MEAs to improve performance, safety, and stack lifetime in green hydrogen production.
📄 Abstract（原文）
Proton exchange membrane water electrolysis (PEMWE) powered by renewable electricity is a promising technology for green hydrogen and green ammonia production, enabling industrial decarbonization. To achieve the economic viability of green hydrogen, improvements in performance and reductions in the cost of membrane electrode assemblies (MEAs) are essential. Operation of PEMWE stacks using wind turbines and other renewable energy sources highlights the importance of robust MEA design and operating strategies under dynamic conditions. Reliable operation requires MEAs that maintain high performance and durability while ensuring safe operation by limiting hydrogen crossover and mitigating hydrogen transport through the membrane (HTO). In this context, cathode-side hydrogen pressure plays a critical role in stack safety and performance. This work presents the identification and analysis of the critical hydrogen pressure on the cathode side and its dependence on cathode electrode design and diffusion layer selection. The results demonstrate that optimized cathode architectures and appropriately selected diffusion layers significantly influence the critical hydrogen pressure, electrochemical performance, operational stability, and overall stack efficiency. These findings provide practical guidance for safe and efficient PEMWE operation in large-scale green hydrogen and ammonia production systems.
🔗 Provenance — このレコードを発見したソース
- semanticscholar https://doi.org/10.1149/ma2026-01361734mtgabsfirst seen 2026-07-19 05:36:32
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