Jiawei Liu, Han Liu, Yang Yang, Yongbing Tao, Lanjun Zhao, Shuirong Li, Xiaoliang Fang, Zhiwei Lin, Huakun Wang, Hua Bing Tao, Nanfeng Zheng
Proton exchange membrane water electrolysis (PEMWE) is a promising solution for the conversion and storage of fluctuating renewable energy sources. Although tremendously efficient materials have been developed, commercial PEMWE products still cannot fulfill industrial demands regarding efficiency and stability. In this work, we demonstrate that the stress distribution, a purely mechanical parameter in electrolyzer assembly, plays a critical role in overall efficiency and stability. The conventional cell structure, which usually adopts a serpentine flow channel (S-FC) to deliver and distribute reactants and products, resulted in highly uneven stress distribution...
April 24, 2024: ACS Central Science