A Voltage-Enhanced, Low-Cost Aqueous Iron–Air Battery Enabled with a Mediator-Ion Solid Electrolyte
Source abstract
Abstract
A new type of aqueous iron–air (Fe–air) battery is demonstrated with an alkaline anode electrolyte (anolyte) and an acidic cathode electrolyte (catholyte). The anolyte and catholyte are separated by an alkali-metal-ion (Li + -ion or Na + -ion) solid-electrolyte separator in which the alkali metal ion serves as an ionic mediator to sustain the redox reactions at the anode and cathode. Coupling the acidic air cathode with the alkaline iron anode demonstrates a voltage-enhanced Fe–air battery. To reduce the cell overpotential, the Fe–air battery is operated with decoupled bifunctional air cathodes comprising an IrO 2 /Ti (iridium oxide on titanium mesh) electrode for the oxygen evolution reaction and a Pt/C (carbon-supported platinum) electrode for the oxygen reduction reaction.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Advanced battery technologies research · Advanced Battery Materials and Technologies · Electrocatalysts for Energy Conversion
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Materials Science and Engineering Program and Texas Materials Institute, The University of Texas at Austin, Austin, Texas 78712, United States
Funding
Basic Energy Sciences
References (39)
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