Royal Society of Chemistry, RSC Advances, 11(14), p. 7710-7719, 2024
DOI: 10.1039/d3ra08635f
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An energy storage device with a voltage window of 1.6 V is developed using three-dimensional coaxial array electrodes, and exports a volumetric energy density of 4.9 mW h cm−3 at 4 mA cm−2.