Research Progress on Flow Fields and Flow Channels of Proton Exchange Membrane Fuel Cells. - Xu, Anbo; Yang, Song; Gao, Mengya; Dou, Huili; Zhang, Jiahao; Liu, Yang; Zhao, Yunming; Li, Jidong; Gao, Tingting; Bian, Haidong (Energies (19961073), 2026)