Battery technologies based on Earth’s abundant elements are indispensable for sustainable energy storage. Sodium- and potassium-ion batteries (NIBs and KIBs) have begun to show promise as alternatives for lithium-ion batteries. Alongside the discovery of new anode materials, the last few years have seen rapidly increasing interest in metal selenides for NIBs and KIBs. This review presents a timely summary of the recent progress on using metal selenides to electrochemically store Na⁺ and K⁺. The review features the design strategies for metal selenides and discusses the roles of the strategies in addressing the current issues of applying metal selenides in NIBs and KIBs. Future opportunities are also presented to signpost open questions that are worth investigating to allow further development of metal selenides and their NIB and KIB performance. This review may shed some light on the material design for not only the electrochemical community but also wider research domains.

基于地球丰富元素的电池技术对于可持续能源存储必不可少。钠离子和钾离子电池（NIB 和 KIB）已开始显示出作为锂离子电池替代品的前景。随着新负极材料的发现，过去几年人们对用于 NIB 和 KIB 的金属硒化物的兴趣迅速增加。本综述及时总结了使用金属硒化物电化学储存 Na ⁺和 K ⁺的最新进展. 该评论以金属硒化物的设计策略为特色，并讨论了这些策略在解决当前在 NIB 和 KIB 中应用金属硒化物的问题中的作用。还提出了未来的机会，指出值得研究的开放性问题，以进一步开发金属硒化物及其 NIB 和 KIB 性能。这篇综述可能会为电化学界和更广泛的研究领域的材料设计提供一些启示。