Issue 11, 2024

Beyond conventional batteries: a review on semi-solid and redox targeting flow batteries-LiFePO4 as a case study

Abstract

Clean and sustainable energy is becoming increasingly crucial to tackle the current energy crisis. However, the intermittent nature of renewable energy sources presents a challenge for their effective implementation. Redox flow batteries (RFBs) have emerged as a promising solution to this problem, as they can help enhance the stability of grid networks and promote the use of renewable energy sources. RFBs are highly modular and scalable systems that can be customized to meet the power and energy requirements of different renewable energy plants. Moreover, they offer several advantages over conventional battery technologies, including cost and safety concerns. However, conventional RFBs have limited energy densities due to the low solubility of their active species in electrolyte. To overcome this limitation, semi-solid (SSRFBs) and redox targeting (RTFBs) flow batteries have been proposed. These systems feature high concentrations of active species and impressive energy densities, making them highly attractive for renewable energy applications. LiFePO4 (LFP) is a highly promising active material for semi-solid and targeting flow batteries. One of the key advantages of LFP is its low raw materials cost, as it is composed of Earth-abundant elements such as iron and phosphorus. This makes it an attractive option for large-scale battery production. The recent developments in SSRFBs and RTFBs using LFP as catholyte hold great promise for the future of sustainable energy storage. The combination of LFP's low cost, safety, durability, and high energy density with the modularity and scalability of flow battery systems make for a compelling solution to the challenges of intermittent renewable energy sources. Ongoing research and development in this area will likely yield even further improvements in the performance and efficiency of LFP-based flow batteries, opening exciting new possibilities for sustainable energy storage.

Graphical abstract: Beyond conventional batteries: a review on semi-solid and redox targeting flow batteries-LiFePO4 as a case study

Article information

Article type
Review Article
Submitted
12 Jan 2024
Accepted
17 Mar 2024
First published
21 Mar 2024

Sustainable Energy Fuels, 2024,8, 2330-2356

Beyond conventional batteries: a review on semi-solid and redox targeting flow batteries-LiFePO4 as a case study

N. El Halya, M. Tayoury, M. Aqil, A. Aboulaich, R. Amine, F. Ghamouss, M. Makha, J. Alami and M. Dahbi, Sustainable Energy Fuels, 2024, 8, 2330 DOI: 10.1039/D4SE00064A

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