Dual-Cation Interpenetrating Polymer Network Anion Exchange Membrane for Fuel Cells and Water Electrolyzers

• DOI: 10.1021/acs.macromol.1c02600
• Publication Date: 2022-05-24T19:11:17Z
• Authors: Lingping Zeng; Wei Yuan; Xiaoqin Ma; Qian He; Ling Zhang; Jianchuan Wang; Zidong Wei
• Keywords: Interpenetrating polymer network; Membrane electrode assembly

Anion exchange membranes (AEMs) play an important role in many electrochemical devices, such as alkaline AEM fuel cells and water electrolyzers, with the inherent anion transportation functionality. High ionic conductivity excellent mechanical chemical stability are indispensable for development of AEMs. In addition, comprehensive properties high strength acquired simultaneously quite their commercialization. Single-cation interpenetrating polymer network (IPN) AEMs, support phase ion conduction interlaced, have been reported our previous work showed potential addressing dilemma strength. To further increase capacity, both networks ionized to fabricate a kind dual-cation IPN membrane this work. The resultant cPVBMP-3.0 cQPPO shows OH– (160.5 mS cm–1 at 80 °C) good (>20 MPa). H2/air (CO2-free) single cell, peak power density 576 mW cm–2 is achieved. current 210 mA 1.80 V observed pure electrolysis electrode assembly electrolyzer.