Guided by the Irving–Williams series, a core–shell MnHCF@CuHCF cathode is constructed via one-step co-precipitation method. The highly conductive and robust CuHCF shell suppresses Jahn–Teller distortion and Mn dissolution, enabling enhanced rate capability and cycling stability in sodium-ion batteries, which provides a feasible strategy for high-performance Prussian blue analogues.
S. Sun, H. Lei, Y. Ma, Y. Zhang, X. Cao and P. Wang, Chem. Commun., 2026, Accepted Manuscript , DOI: 10.1039/D5CC06939D
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