Current status of aqueous liquid flow energy storage batteries

What are aqueous flow batteries?

Among different types of energy storage techniques, aqueous flow batteries (FBs) are one of the preferred technologies for large-scale and efficient energy storage due to their advantages of high safety, long cycle life (15 to 20 years), and high efficiency [3 – 5].

Are aqueous sulfur-based redox flow batteries suitable for large-scale energy storage?

Nature Reviews Electrical Engineering (2025) Cite this article Aqueous sulfur-based redox flow batteries (SRFBs) are promising candidates for large-scale energy storage, yet the gap between the required and currently achievable performance has plagued their practical applications.

What is aqueous redox flow battery (RFB)?

The current research trend and direction of RFBs is made apparent. The aqueous redox flow battery (RFB) is a promising technology for grid energy storage, offering high energy efficiency, long life cycle, easy scalability, and the potential for extreme low cost.

Are all-iron aqueous redox flow batteries suitable for large-scale energy storage?

All-iron aqueous redox flow batteries (AI-ARFBs) are attractive for large-scale energy storage due to their low cost, abundant raw materials, and the safety and environmental friendliness of using water as the solvent.

Can chemistries be used in aqueous redox flow batteries?

These developments and inventive chemistries provide opportunities to employ cheaper chemistries to help meet the future demand for renewable energy. The recent developments in aqueous redox flow batteries utilizing chemistries other than vanadium are discussed in this review. 1. Introduction

Are all-liquid redox flow batteries a good choice?

The all-liquid redox flow batteries are still the most matured of the RFB technology with All-Vanadium RFBs being the most researched and commercialized. The expansion of this technology to meet broad energy demands is limited by the high capital cost, small operating temperature range and low energy density.