ReviewChemical science2026
Recent progress on iron-based hexacyanoferrates for advanced potassium-ion batteries.
Review in Chemical science, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Authors and funding
10 authors.
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Abstract
Potassium-ion batteries (PIBs) are regarded as promising candidates for large-scale grid energy storage owing to the abundant reserves of potassium resources. Iron hexacyanoferrate (FeHCF), a type of Prussian blue analogue, has garnered significant attention as a cathode material for PIBs due to its robust open framework, high theoretical capacity, and cost-effectiveness. However, the practical application of FeHCF is hindered by its intrinsic limitations, including low electronic conductivity, the presence of interstitial water, and lattice vacancies, which collectively result in inadequate reversible capacity, poor cycling stability and unsatisfactory rate performance. In this review, we summarize the recent achievements of FeHCF cathode materials for PIBs, as well as the key challenges hindering their practical application. In addition, we discuss various modification strategies aimed at enhancing the potassium storage performance, categorizing them into direct approaches (
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