Electrochemical oscillation of vanadium ions in anolyte

  • Hao Peng College of Chemistry and Chemical Engineering, Yangtze Normal University, Chongqing, and College of Chemistry and Chemical Engineering, Chongqing University, Chongqing http://orcid.org/0000-0001-6014-0249
  • Zuohua Liu College of Chemistry and Chemical Engineering, Chongqing University, Chongqing
  • Changyuan Tao College of Chemistry and Chemical Engineering, Chongqing University, Chongqing
Keywords: vanadyl sulfate, electrochemical oscillation, vanadium, redox flow battery

Abstract

Periodic electrochemical oscillation of the anolyte was reported for the first time in a simulated charging process of the vanadium redox flow batteries. The electrochemical oscillation could be explained in terms of the competition between the growth and the chemical dissolution of V2O5 film. Also, the oscillation phenomenon was possible to regular extra power consumption. The results of this paper might enable new methods to improve the charge efficiency and energy saving for vanadium redox flow batteries.

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Published
15-08-2017
Section
Electrochemical Engineering