Effect of Fe(III) on the positive electrolyte for vanadium redox flow battery.

ABSTRACT: It is important to study the effect of Fe(III) on the positive electrolyte, in order to provide some practical guidance for the preparation and use of vanadium electrolyte. The effect of Fe(III) on the thermal stability and electrochemical behaviour of the positive electrolyte for the vanadium redox flow battery (VRFB) was investigated. When the Fe(III) concentration was above 0.0196 mol l^-1, the thermal stability of V(V) electrolyte was impaired, the diffusion coefficient of V(IV) species decreased from (2.06-3.33) × 10^-6 cm² s^-1 to (1.78-2.88) × 10^-6 cm² s^-1, and the positive electrolyte exhibited a higher electrolyte resistance and a charge transfer resistance. Furthermore, Fe(III) could result in the side reac

SUBMITTER: Ding M 

PROVIDER: S-EPMC6366179 | biostudies-literature | 2019 Jan

REPOSITORIES: biostudies-literature