Investigations on Electrochemical Characteristics of LiV_(3)O_(8) Electrode in Lithium Sulfate-water-ethanol Electrolytes

Authors

An-bao YUAN, ,SONG Wei-xiang(Department of Chemistry,College of Sciences,Shanghai University,Shanghai 200444,China;

Abstract

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.

Keywords

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

DOI Link

https://doi.org/10.61558/2993-074X.1731

Publication Date

2006-08-28

Online Available Date

2006-08-28

Revised Date

2006-08-28

Received Date

2006-08-28

Recommended Citation

An-bao YUAN. Investigations on Electrochemical Characteristics of LiV_(3)O_(8) Electrode in Lithium Sulfate-water-ethanol Electrolytes[J]. Journal of Electrochemistry, 2006 , 12(3): 250-256.
DOI: 10.61558/2993-074X.1731
Available at: https://jelectrochem.xmu.edu.cn/journal/vol12/iss3/3