Zhang Wenchao, Huang Rui, Yan Xu, Tian Chen, Xiao Ying, Lin Zhang, Dai Liming, Guo Zaiping, Chai Liyuan
School of Metallurgy and Environment, Central South University, Changsha, 410083, China.
Chinese National Engineering Research Centre for Control & Treatment of Heavy Metal Pollution, Central South University, Changsha, 410083, China.
Angew Chem Int Ed Engl. 2023 Oct 23;62(43):e202308891. doi: 10.1002/anie.202308891. Epub 2023 Aug 3.
Tremendous progress has been made in the field of electrochemical energy storage devices that rely on potassium-ions as charge carriers due to their abundant resources and excellent ion transport properties. Nevertheless, future practical developments not only count on advanced electrode materials with superior electrochemical performance, but also on competitive costs of electrodes for scalable production. In the past few decades, advanced carbon materials have attracted great interest due to their low cost, high selectivity, and structural suitability and have been widely investigated as functional materials for potassium-ion storage. This article provides an up-to-date overview of this rapidly developing field, focusing on recent advanced and mechanistic understanding of carbon-based electrode materials for potassium-ion batteries. In addition, we also discuss recent achievements of dual-ion batteries and conversion-type K-X (X=O , CO , S, Se, I ) batteries towards potential practical applications as high-voltage and high-power devices, and summarize carbon-based materials as the host for K-metal protection and possible directions for the development of potassium energy-related devices as well. Based on this, we bridge the gaps between various carbon-based functional materials structure and the related potassium-ion storage performance, especially provide guidance on carbon material design principles for next-generation potassium-ion storage devices.
在以钾离子作为电荷载体的电化学储能装置领域，由于钾资源丰富且离子传输性能优异，已取得了巨大进展。然而，未来的实际发展不仅依赖于具有卓越电化学性能的先进电极材料，还取决于用于规模化生产的电极的具有竞争力的成本。在过去几十年中，先进碳材料因其低成本、高选择性和结构适应性而备受关注，并已被广泛研究作为钾离子存储的功能材料。本文提供了这个快速发展领域的最新综述，重点关注钾离子电池碳基电极材料的最新进展和机理理解。此外，我们还讨论了双离子电池和转换型K-X（X = O、CO、S、Se、I）电池在作为高压和高功率器件的潜在实际应用方面的最新成果，并总结了作为K金属保护主体的碳基材料以及钾能源相关器件的可能发展方向。基于此，我们弥合了各种碳基功能材料结构与相关钾离子存储性能之间的差距，特别是为下一代钾离子存储装置的碳材料设计原则提供了指导。
