材料科学
纳米技术
电化学储能
电化学
储能
电极
超级电容器
化学
功率(物理)
物理
物理化学
量子力学
作者
Kai-Yang Zhang,Zhen‐Yi Gu,Edison Huixiang Ang,Jin‐Zhi Guo,Xiaotong Wang,Yinglin Wang,Xiaohong Wu
标识
DOI:10.1016/j.mattod.2022.02.013
摘要
Although potassium-ion batteries (KIBs) are considered a very promising energy storage system, their development for actual application still has a long way to go. Advanced electrode materials, as a fundamental component of KIBs, are essential for optimizing electrochemical performance and promoting effective energy storage. Due to their unique structural benefits in terms of cycle capability, strong ionic conductivity, and tunable operating voltage, polyanionic compounds are one type of viable electrode material for manufacturing high-performance KIBs. The huge size of K+ ion, on the other hand, places great demands on polyanionic materials, which must be able to withstand severe structural deformation during K+ intercalation/delamination. To maintain steady electrochemical performance, it is critical to follow the appropriate design guidelines for electrode materials. This paper provides a summary of current advancements in polyanionic compound for KIBs, with a focus on electrode material structural design. The effects of various parameters on electrochemical performance are examined and summarized. In addition, various viable solutions are proposed to address the impending issues posed by polyanionic compounds for KIBs, with the hope of providing a clearer picture of the field's future development path.
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