A Precious-Metal-Free Regenerative Fuel Cell for Storing Renewable Electricity

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Abstract

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A low-temperature, precious-metal-free alkaline anion exchange membrane unitized regenerative fuel cell is developed. The prototype device obtains round trip efficiencies of 34–40% at 10 mA cm−2, with a peak power density of 17 mW cm−2 in fuel cell mode. This opens up new possibilities for enabling cost-effective and widespread deployment of renewable electricity.

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