Development of biomaterial-based membranes for sustainable redox flow batteries

Future Batteries Pub Date : 2025-05-21 DOI:10.1016/j.fub.2025.100080

Xiaoyu Huo , Xingyi Shi , Yikai Zeng , Liang An

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Abstract

As the key component in the redox flow battery (RFB) systems, the ion exchange membrane (IEM), which facilitates proton transport while preventing electrolyte crossover, plays an important role in determining the overall system performance. However, up till now, the common commercial Nafion membranes still face the challenges raised from high cost and environmental concerns. There is an urgent demand for the development of novel membranes with low cost, high performance, and environmental friendliness. Recently, there has been growing interest in bio-sourced materials such as lignin, cellulose, and chitosan for membrane fabrication. These renewable materials offer low-cost and sustainable alternatives, providing opportunities to improve the economic viability of RFB technology while meeting environmental regulations. This review focuses on the progress of biomaterial-based membranes developed for RFBs. The potentials and limitations of various bio-sourced materials as membrane matrices and additives are evaluated and discussed. Furthermore, future research directions are suggested to provide insights for the development of next-generation membranes that meet the stringent requirements of sustainable long-term energy storage solutions.

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可持续氧化还原液流电池生物材料基膜的研制

离子交换膜（IEM）作为氧化还原液流电池（RFB）系统的关键部件，在促进质子传输的同时防止电解质交叉，在决定系统整体性能方面起着重要作用。然而，到目前为止，普通的商用Nafion膜仍然面临着高成本和环境问题的挑战。开发低成本、高性能、环保的新型膜是迫切需要的。近年来，人们对木质素、纤维素和壳聚糖等生物源材料的膜制备越来越感兴趣。这些可再生材料提供了低成本和可持续的替代品，为提高RFB技术的经济可行性提供了机会，同时符合环境法规。本文就生物材料基膜的研究进展作一综述。评价和讨论了各种生物源材料作为膜基质和添加剂的潜力和局限性。此外，展望了未来的研究方向，为开发满足可持续长期储能解决方案严格要求的下一代膜提供见解。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Future Batteries

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