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The Role of MgCl 2 as a Lewis Base in ROMgCl-MgCl 2 Electrolytes for Magnesium-Ion Batteries

Journal Article · · ChemSusChem
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  1. Joint Center for Energy Storage Research, Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont Illinois 60439 USA
  2. Materials Science Division, Argonne National Laboratory, Lemont Illinois 60439 USA

A series of strong Lewis acid-free alkoxide/siloxide-based Mg electrolytes were deliberately developed with remarkable oxidative stability up to 3.5 V (vs. Mg/Mg2+). Despite the perception of ROMgCl (R=alkyl, silyl) as a strong base, ROMgCl acts like Lewis acid, whereas the role of MgCl2 in was unambiguously demonstrated as a Lewis base through the identification of the key intermediate using single crystal X-ray crystallography. This Lewis-acid-free strategy should provide a prototype system for further investigation of Mg-ion batteries.

Research Organization:
Argonne National Laboratory (ANL)
Sponsoring Organization:
USDOE Office of Science - Office of Basic Energy Sciences - Joint Center for Energy Storage Research (JCESR)
DOE Contract Number:
AC02-06CH11357
OSTI ID:
1391706
Journal Information:
ChemSusChem, Journal Name: ChemSusChem Journal Issue: 6 Vol. 9; ISSN 1864-5631
Publisher:
ChemPubSoc Europe
Country of Publication:
United States
Language:
English

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