Fluorine-Free Polynorbornene Membranes Based on a Sterically Hindered Pyridine for Vanadium Redox Flow Batteries
Year: 2024
Type: article
Abstract: High Resolution Image Download MS PowerPoint Slide A 2,6-di- tert -butylpyridine-containing norbornene was synthesized by a one-step synthesis and copolymerized with an aromatic norbornene to obtain a membrane with a proton conductivity of 56 mS cm –1 in 2 M H 2 SO 4 . Decreased vanadium(IV) permeability was reached compared to the fluorine-containing reference membrane FAPQ330. A vanadium(V) stability test for 55 days [1.6 M V(V)/2 M H 2 SO 4 ] showed no degradation of functional groups but a loss of molecular weight. Vanadium redox flow battery single-cell tests resulted in a performance comparable to that of FAPQ330, and an in situ self-discharge test lasted more than 3 times longer for the cell equipped with pNorb-Pyr61.
Source: ACS Applied Polymer Materials
Language: English
Subfield: Electrical and Electronic Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $4,500
Award: G5022949022
OpenAlex ID: W4404244154