Gu Yan, Ru Pei Ya, Zhao Ming, Cheng Yang Chun, Jiang Qing
Key Laboratory of Automobile Materials (Jilin University), Ministry of Education, and School of Materials Science and Engineering, Jilin University, Changchun, 130022, China.
Chem Rec. 2022 Oct;22(10):e202200098. doi: 10.1002/tcr.202200098. Epub 2022 Jun 10.
Owing to the abundant resources of potassium resources, potassium ion batteries (PIBs) hold great potential in various energy storage devices. However, the poor lifespan of PIBs anodes limit their merchant applications. The exploitation of anode materials with high performance is one of the critical factors to the development of PIBs. Metallic Sn-, Sb-, and Bi-based materials, show promising future thanks to their high theoretical capacities and safe working voltage. However, the rapid capacity decay caused by the large K is still a pivotal challenge. In this review, recent progresses on alloying anodes were summarized. Schemes, such as ultra-small nanoparticles, hetero-element doping, and electrolyte optimization are effective strategies to improve their electrochemical properties. This review provides an outlook on the nanostructures and their synthesis methods for the alloying-type materials, and will stimulate their intensive study for practical application in the near future.
由于钾资源丰富，钾离子电池（PIBs）在各种储能设备中具有巨大潜力。然而，PIBs阳极的使用寿命较短限制了它们的商业应用。开发高性能阳极材料是PIBs发展的关键因素之一。金属锡基、锑基和铋基材料因其高理论容量和安全工作电压而展现出广阔前景。然而，由大量钾导致的快速容量衰减仍是一个关键挑战。在本综述中，总结了合金阳极的最新进展。诸如超小纳米颗粒、杂元素掺杂和电解质优化等方案是改善其电化学性能的有效策略。本综述对合金型材料的纳米结构及其合成方法进行了展望，并将在不久的将来激发对其实际应用的深入研究。
