Innovative High‐Entropy Strategy Extending Traditional Metal Substitution for Optimizing Prussian Blue Analogues in Rechargeable Batteries
Zihao Zhou,
Yutao Dong,
Yuan Ma,
Hehe Zhang,
Fanbo Meng,
Yanjiao Ma,
Yuping Wu
Affiliations
Zihao Zhou
School of Energy and Mechanical Engineering Nanjing Normal University Nanjing China
Yutao Dong
School of Energy and Mechanical Engineering Nanjing Normal University Nanjing China
Yuan Ma
Confucius Energy Storage Lab, Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment & Z Energy Storage Center Southeast University Nanjing Jiangsu China
Hehe Zhang
School of Energy and Mechanical Engineering Nanjing Normal University Nanjing China
Fanbo Meng
School of Energy and Mechanical Engineering Nanjing Normal University Nanjing China
Yanjiao Ma
School of Energy and Mechanical Engineering Nanjing Normal University Nanjing China
Yuping Wu
Confucius Energy Storage Lab, Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment & Z Energy Storage Center Southeast University Nanjing Jiangsu China
ABSTRACT High‐entropy materials (HEMs) possess unique properties that can be tailored for specific performance characteristics, making them suitable for various battery applications. In particular, HEMs have shown significant promise in enhancing the electrochemical performance of Prussian blue analogues (PBAs) across various battery systems, including sodium‐ion, potassium‐ion, lithium‐sulfur, aqueous zinc‐ion, and aqueous ammonium‐ion batteries. This article examines case studies to explore how the high‐entropy strategy enhances PBA performance. It also provides an overview of traditional metal substitution methods in modifying the two main types of PBAs, that is, Fe‐based and Mn‐based PBA electrode materials. Additionally, other optimization methods, such as defect modulation, surface modification, composite structures, and electrolyte modulation, are also discussed. Finally, the article delves deeply into the relationship between high‐entropy techniques and traditional metal substitution in modifying PBA electrode materials from the perspectives of element design and performance enhancement, aiming to provide comprehensive theoretical guidance for readers.
