Ternary iron-cobalt-nickel electrocatalyst improves the performance and cost-efficiency of rechargeable zinc-air batteries. (IMAGE)

Tsinghua University Press

Ternary iron-cobalt-nickel electrocatalyst improves the performance and cost-efficiency of rechargeable zinc-air batteries.

Caption

The upper-left schematic illustrates the flow of a zinc-air battery (ZAB). The iron-cobalt-nickel (Fe-Co-Ni) electrocatalyst (upper right) speeds both the charging and discharging of the ZAB compared to binary metal electrocatalysts or noble metals platinum and ruthenium, which occurs through the oxygen evolution reaction and oxygen reduction reaction, respectively. The diagram in the lower left illustrates the assembly of the ZAB with a flexible solid-state carbon dot/polyvinyl alcohol (CD/PVA) electrolyte that is ideal for wearable technologies. The lower-right panel shows the ZAB with the ternary Fe-Co-Ni electrocatalyst charging a cell phone.

Credit

Nano Research Energy, Tsinghua University Press

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License

CC BY

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