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Recycled and vanadium-doped materials prepared from the recycling waste electrodes of spent car battery and V2O5 powder produce excellent electrochemical performances when used as a negative electrode in a car battery. The recycled and vanadium-doped samples having different V2O5 compositions (x = 0, 1, 5, 8, 10, 15, and 20%) were characterized by the analysis of X-ray diffraction (XRD), SEM, and...
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