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Choi, Nam-Soon
Energy Materials Lab
Research Interests
  • Rechargeable lithium battery, electrolytes for next generation Mg and Na battery

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Magnesium(II) bis(trifluoromethane sulfonyl) imide-based electrolytes with wide electrochemical windows for rechargeable magnesium batteries

Cited 6 times inthomson ciCited 1 times inthomson ci
Title
Magnesium(II) bis(trifluoromethane sulfonyl) imide-based electrolytes with wide electrochemical windows for rechargeable magnesium batteries
Author
Ha, Se-YoungLee, Yong-WonWoo, Sang WonKoo, BonjaeKim, Jeom-SooCho, JaephilLee, Kyu TaeChoi, Nam-Soon
Keywords
diglyme; electrochemistry; magnesium battery; magnesium deposition; magnesium stripping
Issue Date
201403
Publisher
AMER CHEMICAL SOC
Citation
ACS APPLIED MATERIALS & INTERFACES, v.6, no.6, pp.4063 - 4073
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 Mo 6S8, a radical polymer charged up to a high voltage of 3.4 V versus Mg/Mg2+ and a carbon-sulfur composite as cathodes.
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DOI
http://dx.doi.org/10.1021/am405619v
ISSN
1944-8244
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