The effect of adding Bi³⁺ on the performance of a newly developed iron-copper redox flow battery.

ABSTRACT: In this paper, we propose a new, abundant, cost-effective, non-toxic, and environmentally benign iron-copper redox flow battery (Fe/Cu RFB), which employs Fe²⁺/Fe³⁺ and Cu⁺/Cu⁰ as the positive and negative electrolytes, respectively. The effect of graphite felt (GF) electrode modification and addition of Bi³⁺ into the electrolytes on the performance of the Fe/Cu RFB were investigated. It was found that the cell containing Bi³⁺ in the electrolytes revealed higher coulombic efficiency (89.18%) and energy efficiency (35.24%) than the cell without Bi³⁺ (CE = 84.10% and EE = 34.43%) at 20 mA cm^-2. This is because after adding Bi³⁺, Cu metal precipitation was not observed on the electrode surface,

SUBMITTER: Kabtamu DM 

PROVIDER: S-EPMC9078536 | biostudies-literature | 2018 Feb

REPOSITORIES: biostudies-literature