Lee, Boeun Cho, Jae-Hyun Seo, Hyo Ree Na, Su Bin Kim, Jong Hak Cho, Byung Won Yim, Taeeun Oh, Si Hyoung 2024-01-19T23:31:03Z 2024-01-19T23:31:03Z 2021-09-03 2018-02-21 2050-7488 https://pubs.kist.re.kr/handle/201004/121695 Ionic liquids are effective additives in terms of improving the key electrolyte properties including the ionic conductivity and the oxidative solubility of Grignard reagent-based electrolytes for rechargeable magnesium batteries. However, a precise understanding of their working mechanisms remains elusive to date. Here, we unravel for the first time the mechanism behind the drastic improvement of key electrolyte properties of Grignard reagents upon the addition of allyl-functionalized pyrrolidinium-based ionic liquids. We show that the Grignard reagents selectively abstract acidic protons in the allyl functional group to create a series of Mg-complexes that are remarkably stabilized by the formation of resonance structures. Moreover, the properties of the resulting electrolytes are tuned by adjusting the molar concentration of the ionic liquids which determines the chemical reaction pathway for the formation of new Mg-complexes. Overall, this study demonstrates a novel strategic approach for developing highly efficient new electrolyte systems for rechargeable magnesium batteries. English ROYAL SOC CHEMISTRY ETHYLMAGNESIUM BROMIDE HIGH-CAPACITY CHLORIDE DEPOSITION COMPLEX ELECTRODEPOSITION TETRAHYDROFURAN EQUILIBRIUM SPECIATION SALT Strategic combination of Grignard reagents and allyl-functionalized ionic liquids as an advanced electrolyte for rechargeable magnesium batteries Article 10.1039/c7ta09330f 1 JOURNAL OF MATERIALS CHEMISTRY A, v.6, no.7, pp.3126 - 3133 JOURNAL OF MATERIALS CHEMISTRY A 6 7 3126 3133 scie scopus 000425302700030 2-s2.0-85042142774 Chemistry, Physical Energy & Fuels Materials Science, Multidisciplinary Chemistry Energy & Fuels Materials Science Article ETHYLMAGNESIUM BROMIDE HIGH-CAPACITY CHLORIDE DEPOSITION COMPLEX ELECTRODEPOSITION TETRAHYDROFURAN EQUILIBRIUM SPECIATION SALT Grignard reagents allyl ionic liquids electrolyte rechargeable magnesium battery