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However, the rational design of high\u2010voltage PBAs is hindered by the lack of physically interpretable descriptors connecting atomic\u2010scale properties with voltage behavior. Here, we develop an electronic\u2010geometric coupled descriptor for correlating and predicting voltage plateaus in PBAs. The descriptor combines the p\u2010band center of the cyano\u2010ligand N atom, which characterizes the electronic contribution to Na\u2010N interactions, with a lattice\u2010response term that describes framework confinement during sodiation. Density functional theory calculations on ordered binary PBAs show that the coupled descriptor improves the correlations with both high\u2010 and low\u2010voltage plateaus relative to the electronic descriptor alone, and the predicted trends are consistent with available experimental reports for representative systems. We further apply this descriptor to screen 78 PBA compositions, including ordered binary, multielement\u2010doped Fe\u2010based, and high\u2010entropy PBAs. Eight compositions are predicted to exhibit both high\u2010 and low\u2010voltage plateaus above 3.8\u00a0V, among which Cu[Fe(CN)\n                    <jats:sub>6<\/jats:sub>\n                    ], Ni[Fe(CN)\n                    <jats:sub>6<\/jats:sub>\n                    ], and Zn\n                    <jats:sub>2<\/jats:sub>\n                    Cu\n                    <jats:sub>2<\/jats:sub>\n                    [Fe(CN)\n                    <jats:sub>6<\/jats:sub>\n                    ]\n                    <jats:sub>4<\/jats:sub>\n                    agree with reported experimental trends, while Zn[Zn(CN)\n                    <jats:sub>6<\/jats:sub>\n                    ], Zn[Fe(CN)\n                    <jats:sub>6<\/jats:sub>\n                    ], Cu[Mn(CN)\n                    <jats:sub>6<\/jats:sub>\n                    ], Cu[Zn(CN)\n                    <jats:sub>6<\/jats:sub>\n                    ], and Ni\n                    <jats:sub>3<\/jats:sub>\n                    Zn[Fe(CN)\n                    <jats:sub>6<\/jats:sub>\n                    ]\n                    <jats:sub>4<\/jats:sub>\n                    are proposed as candidates for further experimental validation. This study offers a descriptor\u2010guided strategy for the discovery of high\u2010voltage PBA cathodes.\n                  <\/jats:p>","DOI":"10.1002\/smll.76308","type":"journal-article","created":{"date-parts":[[2026,10,18]],"date-time":"2026-10-18T20:19:41Z","timestamp":1792354781000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["An Electronic\u2010Geometric Descriptor for Predicting High\u2010Voltage Prussian Blue Analogue Cathodes"],"prefix":"10.1002","author":[{"given":"Hengjia","family":"Shao","sequence":"first","affiliation":[{"name":"Institute for Carbon Neutralization Technology College of Chemistry and Materials Engineering Wenzhou University  Wenzhou Zhejiang China"},{"name":"Institute of Energy Materials Science University of Shanghai for Science and Technology  Shanghai China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ping","family":"Tong","sequence":"additional","affiliation":[{"name":"Institute for Carbon Neutralization Technology College of Chemistry and Materials Engineering Wenzhou University  Wenzhou Zhejiang China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0009-1046-411X","authenticated-orcid":false,"given":"Pei","family":"Chen","sequence":"additional","affiliation":[{"name":"Institute for Carbon Neutralization Technology College of Chemistry and Materials Engineering Wenzhou University  Wenzhou Zhejiang China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1704-0829","authenticated-orcid":false,"given":"Yun\u2010Xiao","family":"Wang","sequence":"additional","affiliation":[{"name":"Institute of Energy Materials Science University of Shanghai for Science and Technology  Shanghai 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(RCCT), State Key Laboratory of Porous Materials for Separation and Conversion Shanghai Key Laboratory of Molecular Catalysis and Innovation Materials Collaborative Innovation Centre of Chemistry for Energy Materials, MOE Laboratory for Computational Physical Science Department of Chemistry Fudan University Shanghai China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xin","family":"Tan","sequence":"additional","affiliation":[{"name":"Institute for Carbon Neutralization Technology College of Chemistry and Materials Engineering Wenzhou University  Wenzhou Zhejiang China"},{"name":"Zhejiang Provincial Key Laboratory of Advanced Battery Materials and Technology Wenzhou University Technology Institute for Carbon Neutralization  Wenzhou Zhejiang China"},{"name":"Zhejiang\u2010Australia International Joint Laboratory for Sodium\u2010Ion Batteries Wenzhou University Technology Innovation Institute for Carbon Neutralization  Wenzhou Zhejiang 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