New sulfonated poly (ether ether ketone) composite membrane with the spherical bell-typed superabsorbent microspheres: Excellent proton conductivity and water retention properties at low humidity

• Published in: Journal of power sources Vol. 452; p. 227823
• Main Authors: Liu, Wei, Luo, Ning, Li, Peisen, Yang, Xinlin, Dai, Zhao, Song, Shidong, Wei, Junfu, Zhang, Huan
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 15.03.2020
• Subjects: Composite membrane; Proton conductivity; Sulfonated poly (ether ether ketone); Water retention; Proton conductivity; Water retention; Sulfonated poly (ether ether ketone); Composite membrane

Good proton conductivity and water retention are essential for proton exchange membranes (PEMs). However, proton conductivity of existing PEMs decreases sharply at low humidity, which seriously restricts the efficient and stable operation of fuel cell system. In this study, we design a spherical bel...