Prussian Blue Analogues for Non‐Aqueous Sodium‐Ion and Potassium‐Ion Batteries: The Landscape From Lab‐Scale Optimizations Toward Practical Applications

Prussian blue analogues (PBAs) have emerged as promising cathode materials for next-generation potassium-ion (PIBs) and sodium-ion batteries (SIBs) owing to their simple synthesis, low cost, structural robustness, and well-balanced electrochemical properties. Despite these advantages, several intrinsic challenges continue to limit their practical implementation. This review provides a concise roadmap connecting material-level fundamentals with key lab-scale optimization strategies, and highlights the factors that most critically influence the real-world viability of PBAs. Beyond targeting high performance, we evaluate the practicality of different approaches, with particular attention to particle size, crystal…

• LT
  Leverhulme Trust

  Award: RPG−2025−127
• RS
  Royal Society

  Award: IEC∖NSFC∖223016
• EA
  Engineering and Physical Sciences Research Council

  Awards: EP/X000087/1, EP/V000152/1