Temperature-dependent performance of the polymer electrolyte membrane fuel cell using short-side-chain perfluorosulfonic acid ionomer

State of the art and prospects in the development of proton‐conducting perfluorinated membranes with short side chains: A review

“…Comparative testing by Jeon et al of FC based on Nafion and Aquivion membranes at high temperatures and low humidity (not exceeding 20%) demonstrated better performance for the FC with Aquivion membranes at temperatures above 100°C 52 . The MEA with Aquivion membrane gives 2.43 times higher current density (0.524 A/cm) at a voltage 0.6 V than the Nafion‐based cell at 140°C and RH = 20% (Figure 6).…”

“…The authors 52 believe that Aquivion membranes possess higher thermal and mechanical stability at elevated temperatures (as compared to those of the Nafion‐based membranes) due to the higher crystallinity of the first copolymer. These properties are important for the use of Aquivion E87‐05S as a component of high‐temperature hydrogen FC.…”

Recent Progress on the Key Materials and Components for Proton Exchange Membrane Fuel Cells in Vehicle Applications

“…The Aquivion ® membrane has the same perfluorinated acid structure as the Energies 2016, 9, 603 7 of 39 Nafion ® membrane, which is characterized by a short side chain structure. Comparative studies of these two commercial membranes showed that the tensile stress of Aquivion ® is 15-20 MPa [20] higher than that of Nafion ® at 75-140˝C and the power density of an Aquivion ® MEA is on an average 100 mW/cm 2 [20] higher than that of a Nafion ® MEA under 75˝C and 90˝C at 100% relative humidity (RH), at 120˝C and 40% RH, and at 140˝C and 20% RH. Furthermore, the proton transfer channel diameter of Aquivion ® is small and the hydrogen permeation, which is related to the hydrogen fuel cell durability, can be reduced.…”

Evaluation of hot pressing parameters on the electrochemical performance of MEAs based on Aquivion® PFSA membranes

“…In the PFSA based membranes, the polymer equivalent weight (EW), its glass transition temperature ( T g ), crystallinity and water content play an important role on the performance and stability of the membranes [13][14][15] , especially under high temperature and low humidity conditions, typical for automotive applications. The PFSA based polymeric membranes with short side-chain (SSC), such as Aquivion ® , present higher crystallinity, higher T g and lower swelling than long side-chain polymers such as Nafion, with enhanced electrochemical performance due to the improved mechanical stability at lower EW [16][17][18][19][20] . These characteristics make SSC polymers more suitable to work in a PEFC at higher cell temperature and lower relative humidity levels (RH, %) [21] .…”