title: A highly stable sodium solid-state electrolyte based on a dodeca/deca-borate equimolar mixture.
abstract: Na2(B12H12)0.5(B10H10)0.5, a new solid-state sodium electrolyte is shown to offer high Na+conductivity of 0.9 mS cm-1at 20 °C, excellent thermal stability up to 300 °C, and a large electrochemical stability window of 3 V including stability towards sodium metal anodes, all essential prerequisites for a stable room-temperature 3 V all-solid-state sodium-ion battery.
authors.affiliation: Empa, Swiss Federal Laboratories for Materials Science and Technology, CH-8600 Dübendorf, Switzerland. arndt.remhof@empa.ch and Département de Chimie-Physique, Université de Genève, CH-1211 Geneva 4, Switzerland.
authors.forename: L
authors.identifier: http://orcid.org/0000-0003-0309-4682
authors.initials: L
authors.lastname: Duchêne
authors.affiliation: Empa, Swiss Federal Laboratories for Materials Science and Technology, CH-8600 Dübendorf, Switzerland. arndt.remhof@empa.ch.
authors.forename: R-S
authors.initials: RS
authors.lastname: Kühnel
authors.affiliation: Empa, Swiss Federal Laboratories for Materials Science and Technology, CH-8600 Dübendorf, Switzerland. arndt.remhof@empa.ch.
authors.forename: D
authors.initials: D
authors.lastname: Rentsch
authors.affiliation: Empa, Swiss Federal Laboratories for Materials Science and Technology, CH-8600 Dübendorf, Switzerland. arndt.remhof@empa.ch.
authors.forename: A
authors.identifier: http://orcid.org/0000-0002-8394-9646
authors.initials: A
authors.lastname: Remhof
authors.affiliation: Département de Chimie-Physique, Université de Genève, CH-1211 Geneva 4, Switzerland.
authors.forename: H
authors.initials: H
authors.lastname: Hagemann
authors.affiliation: Empa, Swiss Federal Laboratories for Materials Science and Technology, CH-8600 Dübendorf, Switzerland. arndt.remhof@empa.ch.
authors.forename: C
authors.initials: C
authors.lastname: Battaglia