articleNature CommunicationsSep 8, 2020GOLD OA

Modulating electrolyte structure for ultralow temperature aqueous zinc batteries

Nankai University

PubMed
Indexed incrossrefdoajpubmed

Abstract

Abstract Rechargeable aqueous batteries are an up-and-coming system for potential large-scale energy storage due to their high safety and low cost. However, the freeze of aqueous electrolyte limits the low-temperature operation of such batteries. Here, we report the breakage of original hydrogen-bond network in ZnCl 2 solution by modulating electrolyte structure, and thus suppressing the freeze of water and depressing the solid-liquid transition temperature of the aqueous electrolyte from 0 to –114 °C. This ZnCl 2 -based low-temperature electrolyte renders polyaniline||Zn batteries available to operate in an ultra-wide temperature range from –90 to +60 °C, which covers the earth surface temperature in record.…

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897
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100%
References
73
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Authors

7

Topics & keywords

Keywords
  • Electrolyte
  • Aqueous solution
  • Materials science
  • Polyaniline
  • Atmospheric temperature range
  • Chemical engineering
  • Battery (electricity)
  • Energy storage
UN Sustainable Development Goals
  • Affordable and clean energy
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