Defect Engineering in Prussian Blue Analogs for High-Performance Sodium-Ion Batteries,Advanced Energy Materials

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Defect Engineering in Prussian Blue Analogs for High-Performance Sodium-Ion Batteries
Advanced Energy Materials ( IF 24.4 ) Pub Date : 2022-10-26 , DOI: 10.1002/aenm.202202532
Xinyi Liu ₁ , Yu Cao ₁ , Jie Sun ₁

Affiliation

Prussian blue (PB) and its analogs (PBAs) are considered one of the most promising materials for sodium-ion batteries (SIBs). The typical PB with perfect structure and highly integrated lattice has excellent structural stability, but the possible structural defects inevitably generated in the synthesis process will deteriorate its structure during cycling, resulting in rapid capacity degradation, and impede their practical application. However, not all defects are detrimental, as proper defect construction can customize the local nature of PB to achieve outstanding new functions. This paper reviews various defect engineering designs for PBAs, such as the creation/suppression of cation or anion vacancies, the introduction of cation doping, the reduction of dislocation defects, and the construction of pore-defect engineering. As a result, the structure–activity relationship between defects and electrochemical performance of SIBs is summarized. Moreover, the existing challenges and future development prospects are discussed, and the potential application of defect engineering in PBAs for SIBs is emphasized.

中文翻译：

用于高性能钠离子电池的普鲁士蓝类似物的缺陷工程

普鲁士蓝 (PB) 及其类似物 (PBA) 被认为是最有前途的钠离子电池 (SIB) 材料之一。具有完美结构和高度集成晶格的典型PB具有优异的结构稳定性，但在合成过程中不可避免地产生的可能结构缺陷会在循环过程中破坏其结构，导致容量快速下降，阻碍其实际应用。然而，并非所有的缺陷都是有害的，因为适当的缺陷构造可以定制 PB 的局部性质以实现出色的新功能。本文回顾了 PBA 的各种缺陷工程设计，例如阳离子或阴离子空位的产生/抑制、阳离子掺杂的引入、位错缺陷的减少以及孔隙缺陷工程的构建。因此，总结了缺陷与SIBs电化学性能之间的构效关系。此外，讨论了现有的挑战和未来的发展前景，并强调了缺陷工程在 SIBs PBAs 中的潜在应用。

更新日期：2022-10-26

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