Ionomers, which are used as polymer electrolyte membranes as well as catalyst binders in membrane electrode assemblies, are a key component of electrochemical energy conversion and storage technologies such as fuel cells, electrolyzers, and flow batteries. The use of ionomers in these clean energy technologies has a long history and there has been considerable progress in developing low-cost, high-performance ionomers in recent years. In this review article, we discuss some highlights from recent developments of ionomers with emphasis on chemically stable, mechanically durable, high-performance hydrocarbon ionomers and their state-of-the-art performance in electrochemical energy conversion devices. Future directions of ionomer research that are important to enhance our understanding and the remaining challenges related to device level applications are addressed.

用作聚合物电解质膜以及膜电极组件中的催化剂粘合剂的离聚物是电化学能量转换和存储技术（如燃料电池，电解池和液流电池）的关键组件。在这些清洁能源技术中使用离聚物已有很长的历史，并且近年来在开发低成本，高性能离聚物方面取得了长足的进步。在这篇综述文章中，我们将讨论离聚物的最新发展中的一些亮点，重点是化学稳定，机械耐用，高性能的烃离聚物及其在电化学能量转换装置中的最新性能。