High-consistency proton exchange membrane fuel cells enabled by oxygen-electron mixed-pathway electrodes via digitalization design

作     者：Zhiming Bao Biao Xie Weizhuo Li Shenghui Zhong Linhao Fan Chasen Tongsh Fei Gao Qing Du Mohamed Benbouzid Kui Jiao 

作者机构：State Key Laboratory of EnginesTianjin UniversityTianjin 300350China INSA RennesRennes 35700France Beihang Hangzhou Innovation Institute YuhangHangzhou 310023China FEMTO-ST InstituteUniversity of Technology of Belfort-MontbeliardNational Center for Scientific ResearchBelfort F-90010France UMR 6027 IRDLBrest UniversityNational Center for Scientific ResearchBrest 29238France Shanghai Marine UniversityShanghai 201306China National Industry-Education Platform of Energy StorageTianjin UniversityTianjin 300350China 

基　　金：supported by the National Natural Science Foundation of China(52176196) the Natural Science Foundation of Tianjin(China)for Distinguished Young Scholars(18JCJQJC46700) 

出 版 物：《Science Bulletin》 (科学通报（英文版）)

年 卷 期：2023年第68卷第3期

页      码：266-275,M0003页

摘      要：Proton exchange membrane(PEM)fuel cell has been regarded as a promising approach to the decarbonization and diversification of energy *** recent years,durability and cost issues of PEM fuel cells are increasingly significant with the rapid increase of power ***,the failure to maintain the cell consistency,as one major cause of the above issue,has attracted little ***,this study intends to figure out the underlying cause of cell inconsistency and provide solutions to it from the perspective of multi-physics transport coupled with electrochemical *** PEM fuel cells with electrodes under two compression modes are firstly discussed to fully explain the relationship of cell performance and consistency to electrode structure and multi-physics *** result indicates that one main cause of cell inconsistency is the intrinsic conflict between the separated transport and cooperated consumption of oxygen and electron throughout the active ***,a mixed-pathway electrode design is proposed to reduce the cell inconsistency by enhancing the mixed transport of oxygen and electron in the *** is found that the mixing of pathways in electrodes at under-rib region is more effective than that at the under-channel region,and can achieve an up to 40%reduction of the cell inconsistency with little(3.3%)sacrificed *** addition,all the investigations are implemented based on a self-developed digitalization platform that reconstructs the complex physical–chemical system of PEM fuel *** fully observable physical information of the digitalized cells provides strong support to the related analysis.

主 题 词：Proton exchange membrane fuel cell Digitalization Electrode Multi-physics transport Mixed pathways 

学科分类：0808[工学-自动化类] 08[工学] 

核心收录：

D　O　I：10.1016/j.scib.2023.01.034

馆 藏 号：203118096...