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聚苯并咪唑基酸性水系液流电池膜研究进展

作者：胡磊¹，²，焉晓明¹，贺高红¹

单位： 1. 大连理工大学化工学院，精细化工国家重点实验室，膜科学与技术研究开发中心，大连 116024； 2. 苏州天华新能源科技股份有限公司，苏州 215121

关键词：酸性水系液流电池；聚苯并咪唑；离子传导通道；膜

DOI号： 10.16159/j.cnki.issn1007-8924.2026.02.019

分类号： TQ028

出版年,卷(期):页码： 2026,46(2):178-190

摘要：

酸性水系液流电池（AAFB）凭借本征安全、寿命长、效率高和环境友好等优势，已成为电力系统储能的首选技术之一。隔膜作为AAFB的关键组件，其性能直接决定着AAFB整体运行效率。然而现有商业化全氟磺酸膜难以兼顾高离子传导性、高离子选择性，制约着AAFB的大规模商业化应用。聚苯并咪唑（PBI）膜因优异的离子分离性能及苛刻条件下的稳定性，在AAFB中得到广泛的研究与应用。本文系统阐述了AAFB用PBI基膜的核心特点与基本要求，重点总结了PBI基膜内离子传导通道构筑策略，指出了PBI基膜的未来发展关键方向，从而推动高性能、低成本AAFB技术的产业化发展。

Acidic aqueous flow batteries (AAFBs) have emerged as one of the preferred technologies for power system energy storage, thanks to their inherent safety, long cycle life, high efficiency, and environmental friendliness. As a key component of AAFBs, the membrane directly determines the overall operational efficiency of battery. However, commercial ion exchange membranes are difficult to simultaneously have high ion conductivity and high ion selectivity, which restricts the large-scale commercial application of AAFBs. Polybenzimidazole (PBI)-based membranes have been extensively researched and applied in AAFB due to excellent ion separation performance and stability under harsh conditions. This review systematically elaborates on the core characteristics and basic requirements of PBI-based membranes for AAFBs, focuses on summarizing the construction strategies of ion-transport channels in PBI-based membranes, and points out the key future development directions of PBI-based membranes, thereby advancing the industrialization of high-performance and low-cost AAFB technologies.

基金项目：

辽宁滨海实验室颠覆性技术类基金项目（LBLE-2023-03）；国家自然科学基金项目（2253000382）；中国博士后科学基金资助项目（2024M762321）；江苏省基础研究计划资助（BK20250444）

作者简介：

胡磊（1994-），男，四川内江人，工程师，博士，研究方向为液流电池膜

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