title: Magnesium(II) bis(trifluoromethane sulfonyl) imide-based electrolytes with wide electrochemical windows for rechargeable magnesium batteries.
abstract: We present a promising electrolyte candidate, Mg(TFSI)2 dissolved in glyme/diglyme, for future design of advanced magnesium (Mg) batteries. This electrolyte shows high anodic stability on an aluminum current collector and allows Mg stripping at the Mg electrode and Mg deposition on the stainless steel or the copper electrode. It is clearly shown that nondendritic and agglomerated Mg secondary particles composed of ca. 50 nm primary particles alleviating safety concern are formed in glyme/diglyme with 0.3 M Mg(TFSI)2 at a high rate of 1C. Moreover, a Mg(TFSI)2-based electrolyte presents the compatibility toward a Chevrel phase Mo6S8, a radical polymer charged up to a high voltage of 3.4 V versus Mg/Mg(2+) and a carbon-sulfur composite as cathodes.
authors.affiliation: Interdisciplinary School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST) , 100 Banyeon-ri, Eonyang-eup, Ulju-gun, Ulsan 689-798, South Korea.
authors.forename: Se-Young
authors.initials: SY
authors.lastname: Ha
authors.forename: Yong-Won
authors.initials: YW
authors.lastname: Lee
authors.forename: Sang Won
authors.initials: SW
authors.lastname: Woo
authors.forename: Bonjae
authors.initials: B
authors.lastname: Koo
authors.forename: Jeom-Soo
authors.initials: JS
authors.lastname: Kim
authors.forename: Jaephil
authors.initials: J
authors.lastname: Cho
authors.forename: Kyu Tae
authors.initials: KT
authors.lastname: Lee
authors.forename: Nam-Soon
authors.initials: NS
authors.lastname: Choi