Batteries: Charging ahead rationally

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Redox mediators facilitate the oxidation of the highly insulating discharge product in metal–oxygen batteries during recharge and offer opportunities to achieve high reversible capacities. Now a design principle for selecting redox mediators that can recharge the batteries more efficiently is suggested.

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Figure 1: Working principle of a redox mediator in the lithium–oxygen battery.

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Correspondence to Stefan A. Freunberger.

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Freunberger, S. Batteries: Charging ahead rationally. Nat Energy 1, 16074 (2016). https://doi.org/10.1038/nenergy.2016.74

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