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Potassium‐ion batteries (KIBs) in organic electrolytes hold great promise as an electrochemical energy storage technology owing to the abundance of potassium, close redox potential to lithium, and similar electrochemistry with lithium system. Although carbon materials have been studied as KIB anodes, investigations on KIB cathodes have been scarcely reported. A comprehensive study on potassium Prussian...
In article 1604307, potassium Prussian blue nanoparticles are investigated by Y. Lei and co‐workers as cathode materials for potassium‐ion batteries and exhibit great electrochemical performance. The cover illustrates the successful demonstration of a full cell by coupling with commercially available carbon materials. Considering the low cost and material sustainability, this work highlights the promise...
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