Corresponding Author

Jun YANG(yangj723@sjtu.edu.cn)


A phenolated-based Mg salt was prepared. The mixture of THF and N-methyl-N-butyl-piperidinium bis(trifluoromethanesulfonyl)imide (PP14TFSI) serves as the mixed solvent instead of pure THF for rechargeable Mg batteries systems. This new type of electrolyte system not only has optimal reversibility of Mg, but also owns a wide electrochemical window (2.7 V vs. Mg) and high ionic conductivity (7.77 mS·cm-1). More importantly, the addition of Ionic Liquid suppresses the volatility of THF and improves the safety of rechargeable Mg batteries. The result shows that the mixture of THF and piperidyl-based Ionic Liquid could be regarded as a good solvent candidate for rechargeable Mg batteries.

Graphical Abstract


phenolate-based Mg salt, PP14TFSI, rechargeable Mg batteries, mixed solvents, electrolyte

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[1] Gregory T D, Hoffman R J, Winterton R C. Nonaqueous electrochemistry of magnesium[J]. Journal of Electrochemical Society, 1990, 137(3): 775-780.
[2] Novak P, Imhof R. Magnesium insertion electrodes for rechargeable nonaqueous batteries — A competitive alternative to lithium?[J]. Electrochimica Acta, 1999, 45(1): 351-367.
[3] Nuli Yanna, Yang J, Li Y S, et al. Mesoporous magnesium manganese silicate as cathode materials for rechargeable magnesium batteries[J]. Chemical Communications, 2010, 46(21): 3794-3796.
[4] Besenhard J O, Winter M. Advances in battery technology: Rechargeable magnesium batteries and novel negative electrode materials for lithium ion batteries[J]. ChemPhysChem, 2002, 3(2): 155-159.
[5] Masaki M. Study on electrochemically deposited Mg metal[J]. Journal of Power Sources, 2011, 196(16): 7048-7055.
[6] Guo Y S, Zhang F, Yang J, et al. Boron-based electrolyte solutions with wide electrochemical windows for rechargeable magnesium batteries[J]. Energy & Environmental Science, 2012, 5(10): 9100-9106.
[7] Khoo T, Howlett P C, Tsagouria M, et al. The potential for ionic liquid electrolytes to stabilise the magnesium interface for magnesium/air batteries[J]. Electrochimica Acta, 2011, 58: 583-588.
[8] Amir N, Vestfrid Y, Chusid O, et al. Progress in nonaqueous magnesium electrochemistry[J]. Journal of Power Sources, 2007, 174(2): 1234-1240.
[9] Kakibe T, Yoshimoto N, Egashira M, et al. Optimization of cation structure of imidazolium-based ionic liquids as ionic solvents for rechargeable magnesium batteries[J]. Electrochemistry Communications, 2010, 12(11): 1630-1633.
[10] Yoshimoto N, Matsumoto M, Egashira M, et al. Mixed electrolyte consisting of ethylmagnesiumbromide with ionic liquid for rechargeable magnesium electrode[J]. Journal of Power Sources, 2010, 195(7): 2096-2098.
[11] Wang F F, Guo Y S, Yang J, et al. A novel electrolyte system without a Grignard reagent for rechargeable magnesium batteries[J]. Chemical Communications, 2012, 48(87): 10763-10765.



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