Electrochemical Intercalation of Lithium Ions into Electrolytic Vanadium Pentoxide |
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Authors: | Tysyachnyi V P Shembel' E M Apostolova R D |
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Institution: | (1) Ukrainian State University of Chemical Technology, pr. Gagarina 8, Dnepropetrovsk, 320640, Ukraine |
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Abstract: | The discharge of thin films of Li
x
V2O5 is described by a mathematical diffusion model. The chemical diffusion coefficient for lithium ions, estimated with the model, is equal to (1.01–2.5) × 10–11 cm2/s. As the film thickness increases, the discharge capacity at a current of 20 A/cm2 tends to the calculated limiting of 3.12 C/cm2. The optimum thickness of the film electrode calculated for a discharge current of 20 A/cm2 is 33.4 m and agrees satisfactorily with the experimental value. |
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