Rechargeable aqueous zinc batteries are promising candidates for large-scale energy storage, but their operation is suboptimal at low temperatures. An electrolyte solution comprising two salts now enables unprecedented battery performance across a wide temperature range.
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Liang, Y. A two-salt solution for batteries. Nat Sustain 6, 239–240 (2023). https://doi.org/10.1038/s41893-022-01029-w