Fine valence regulation of hydrated vanadium oxide as a novel cathode for stable potassium-ion storage.

Chem Commun (Camb)

CAS Key Laboratory of Precision and Intelligent Chemistry, Department of Materials Science and Engineering, University of Science and Technology of China, Hefei, Anhui, 230026, China.

Published: August 2023

Layered VO·HO with a large interlayer spacing of 14 Å is hydrothermally synthesized and used as a cathode for potassium-ion batteries. It exhibits a capacity of 110 mA h g with a capacity retention of 99.2% over 700 cycles. Its storage mechanism is identified as pseudo-capacitive intercalation.

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http://dx.doi.org/10.1039/d3cc02519eDOI Listing

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