Kisu, KazuakiKim, SangryunShinohara, TakaraZhao, KunZuettel, AndreasOrimo, Shin-ichi2021-08-282021-08-282021-08-282021-04-0610.1038/s41598-021-86938-0https://infoscience.epfl.ch/handle/20.500.14299/180892WOS:000684931400001High-energy-density and low-cost calcium (Ca) batteries have been proposed as 'beyond-Li-ion' electrochemical energy storage devices. However, they have seen limited progress due to challenges associated with developing electrolytes showing reductive/oxidative stabilities and high ionic conductivities. This paper describes a calcium monocarborane cluster salt in a mixed solvent as a Ca-battery electrolyte with high anodic stability (up to 4 V vs. Ca2+/Ca), high ionic conductivity (4 mS cm(-1)), and high Coulombic efficiency for Ca plating/stripping at room temperature. The developed electrolyte is a promising candidate for use in room-temperature rechargeable Ca batteries.Multidisciplinary SciencesScience & Technology - Other Topicslithiumdepositionaniontext::journal::journal article::research article