The active material of LiV_(3)O_(8)prepared using low-temperature pre-reaction in solution followed by intermediate-temperature calcination at 450 ℃.The product was characterized by X-ray diffraction analysis and scanning electron microscope observation.The performance of LiV_(3)O_(8) electrode in neutral lithium sulfate-water-ethanol electrolytes was investigated using electrochemical methods.Galvanostatic charge/discharge results indicated that the specific capacity of LiV_(3)O_(8) electrode decreases with ethanol content increasing in electrolyte.The most appropriate water/ethanol volumetric ratio is 4 ∶1 in terms of conductivity of the electrolyte and stability of the electrode.AC impedance measurements demonstrated that the ohmic resistance of the electrolyte as well as the charge transfer resistance of the electrode/electrolyte interface increases with ethanol content increasing.


Lithium trivanadate, Electrochemical characteristics, Lithium sulfate-water-ethanol lectrolyte

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