Pathway to commercialization of aqueous sulfur-based redox flow batteries

Researchers in China have identified a series of engineering strategies to bring aqueous sulfur-based redox flow batteries closer to commercial production. Improving catalyst design, ion-selective membranes, and device integration will be key to solve this battery storage technology's issues. Polysulfide is one of the most promising materials for electrolytes used in large-scale aqueous redox flow batteries (RFBs) due to its inherent safety, high energy and low cost. However, potential polysulfide crossover results in a poor battery lifecycle, which prevents sulfur-based flow batteries from getting ...

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