Composite Polybenzimidazole Membrane with High Capacity Retention for Vanadium Redox Flow Batteries.

ABSTRACT: Currently, energy storage technologies are becoming essential in the transition of replacing fossil fuels with more renewable electricity production means. Among storage technologies, redox flow batteries (RFBs) can represent a valid option due to their unique characteristic of decoupling energy storage from power output. To push RFBs further into the market, it is essential to include low-cost materials such as new generation membranes with low ohmic resistance, high transport selectivity, and long durability. This work proposes a composite membrane for vanadium RFBs and a method of preparation. The membrane was prepared starting from two polymers, meta-polybenzimidazole (6 μm) and porous polypropylene (30 μm), through a gluing approach by hot-pressing. In a vanadium RFB, the compo

SUBMITTER: Duburg JC 

PROVIDER: S-EPMC8002762 | biostudies-literature | 2021 Mar

REPOSITORIES: biostudies-literature