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LOW-COST BATTERY

Ferric sauce for potassium-ion battery

Nature Sustainability volume 5, pages 183–184 (2022)Cite this article

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The potential lithium crisis and supply shortages of other metals essential for lithium-ion batteries have driven innovation in alternative technologies. Now a study describes high-performance potassium-ion batteries that can cycle for more than 500 days with negligible performance loss.

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Fig. 1: Schematic of the Mn-based Prussian blue–analogue cathode charged (K-ion desertion) and discharged (K-ion insertion) in electrolyte with and without the addition of Fe3+ ions.

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Acknowledgements

The authors gratefully acknowledge support for this work from the US Department of Energy (DOE), Office of Energy Efficiency and Renewable Energy, Vehicle Technologies Office. The Argonne National Laboratory is operated for the US DOE, Office of Science by UChicago Argonne under contract no. DE-AC02-06CH11357.

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  1. Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, IL, USA

    Matthew Li & Jun Lu

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  1. Matthew Li
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  2. Jun Lu
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Correspondence to Jun Lu.

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The authors declare no competing interests.

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Li, M., Lu, J. Ferric sauce for potassium-ion battery. Nat Sustain 5, 183–184 (2022). https://doi.org/10.1038/s41893-021-00832-1

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