Electric Current Generation in the System Polyelectrolyte Gel of V2O5 – Solution
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Date
2018-08-08
Authors
Kopishev, Eldar
Suleimenov, Ibrahim
Syzdykov, Askar
Safarov, Ruslan
Mashan, Togzhan
Berdenov, Zharas
Journal Title
Journal ISSN
Volume Title
Publisher
The 6th International Conference on Nanomaterials and Advanced Energy Storage Systems. Institute of Batteries LLP, Nazarbayev University, and PI “National Laboratory Astana”.
Abstract
Extending the list of the physical and chemical processes applicable for making electric current accumulators allows expanding the sources of raw material for the production of this category of goods. Vanadium is a promising alternative to lithium. In this paper, we describe the generation of an electric current in the dissolution of gels based on vanadium (V) oxide. It was shown that an electrochemical cell having the properties of a battery of electric energy can be produced by using decavanadic acid gel and hydroxide solution. In particular, it was theoretically established that a sample of a gel that passed into a collapsed state under the influence of a constant electric current has an ability to generate an electric current in a closed galvanic circuit after an external current source was disconnected. The gel was grown from an aqueous solution of vanadium (V) oxide. The dependence of the amperage in the external circuit on time is shown, the starting value of the discharge current J0 is indicated. During the experiments, the generation of current was also studied by placing the gel sample into the solutions of other substances, as well as into the distilled water. It was found that in acid solutions and pure water, the efficiency of the current generation is very low (the current values obtained do not exceed the sensitivity limit of the microammeter). The generation of current becomes effective only by placing the gel in an alkali solution.
Description
Keywords
Polyelectrolyte, vanadium
Citation
Kopishev, Eldar et al. (2018) Electric Current Generation in the System Polyelectrolyte Gel of V2O5 – Solution.