Experimental study demonstrates enhanced charge storage and lithium-ion diffusion in atmospheric pressure CVD vanadium oxide coatings, indicating high potential for durable battery cathodes.
The growth of vanadium dioxide is carried out using chemical vapor deposition with N 2 flow rates of 1, 1.4 and 2.2 L min −1 through the vanadium precursor bubbler. The presence of both monoclinic and metastable vanadium dioxide phases with the co‐existence of nanocrystallites and outgrowths on the coating surface is observed for the 1 L min −1 . Additionally, the electrochemical performance for this sample is enhanced and the specific discharge capacity was the highest presenting capacitance retention of 97% after 500 scans. Finally, it is found that the diffusion of Li + through the cathode/electrolyte interface is easier enhancing its capacitive performance.
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Vernardou et al. (2015) studied this question.
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