초록 |
The highly-bendable, proton-conductive silicate glass electrolyte integrated with the PI nonwoven fabric(b-SS glass electrolyte) has been developed for potential use in medium-temperature/low-humidity PEMFCs. The b-SS glass electrolytes are fabricated via in-situ sol-gel synthesis of 3-trihydroxysilyl-1-propanesulfonic acid(THPSA)/3-glycidyloxypropyl trimethoxysilane(GPTMS) mixtures inside PI nonwoven substrates serving as a porous reinforcing framework. Owing to this structural uniqueness, the b-SS glass electrolytes provide noticeable improvements in mechanical bendability, membrane thickness and the excellent proton conductivity at harsh measurement conditions, which is highly important for PEMFC-powered electric vehicle(EV) applications. |