title: Magnesium Ethylenediamine Borohydride as Solid-State Electrolyte for Magnesium Batteries.
abstract: Solid-state magnesium ion conductors with exceptionally high ionic conductivity at low temperatures, 5 × 10-8Scm-1at 30 °C and 6 × 10-5Scm-1at 70 °C, are prepared by mechanochemical reaction of magnesium borohydride and ethylenediamine. The coordination complexes are crystalline, support cycling in a potential window of 1.2 V, and allow magnesium plating/stripping. While the electrochemical stability, limited by the ethylenediamine ligand, must be improved to reach competitive energy densities, our results demonstrate that partially chelated Mg2+complexes represent a promising platform for the development of an all-solid-state magnesium battery.
authors.affiliation: Materials for Energy Conversion, Empa - Swiss Federal Laboratories for Materials Science and Technology, 8600 Dübendorf, Switzerland.
authors.forename: Elsa
authors.initials: E
authors.lastname: Roedern
authors.affiliation: Materials for Energy Conversion, Empa - Swiss Federal Laboratories for Materials Science and Technology, 8600 Dübendorf, Switzerland.
authors.forename: Ruben-Simon
authors.initials: RS
authors.lastname: Kühnel
authors.affiliation: Materials for Energy Conversion, Empa - Swiss Federal Laboratories for Materials Science and Technology, 8600 Dübendorf, Switzerland.
authors.forename: Arndt
authors.initials: A
authors.lastname: Remhof
authors.affiliation: Materials for Energy Conversion, Empa - Swiss Federal Laboratories for Materials Science and Technology, 8600 Dübendorf, Switzerland.
authors.forename: Corsin
authors.initials: C
authors.lastname: Battaglia