Work

Recent advances in optimized polybenzimidazole-based membranes for vanadium redox flow battery applications

Year: 2025

Type: article

Abstract: Polybenzimidazole(PBI)-based membranes have garnered significant interest in advancing vanadium redox flow batteries (VRFBs) due to their excellent chemical stability, high mechanical strength, and promising ion-selectivity properties. Recent research has focused on optimizing PBI membranes through chemical modifications, composite formations, and hybridization techniques, which enhance proton conductivity while minimizing vanadium ion crossover. Techniques such as sulfonation, blending with inorganic fillers (e.g., silica, TiO₂), and incorporation of functionalized nanomaterials have resulted in membranes with improved performance, enabling higher energy efficiencies and extended cycle life in VRFBs. Additionally, new synthesis methods for cross-linking and microstructure adjustments have yielded enhanced durability and flexibility in various operating conditions. These advancements highlight the potential of optimized PBI-based membranes to play a crucial role in developing efficient and durable energy storage systems for grid-scale applications.

Source: Journal of Energy Storage

DOI: 10.1016/j.est.2025.117372

Authors: Subhrakali Swain, Kamakshi Brahma, Ratikanta Nayak, Sonika

Institutions: National Institute of Science and Technology, Rajiv Gandhi University

Language: English

Topic: Advanced battery technologies research

Subfield: Electrical and Electronic Engineering

Field: Engineering

Domain: Physical Sciences

SDGs: Affordable and clean energy, Industry, innovation and infrastructure

Open Access status: hybrid

Estimated APC paid: $3,560