| 摘要： |
Herein we present a strong anion receptor-assisted Mg-ion electrolyte, which is synthesized from tris(2H-hexafluoroisopropyl) borate (THFPB) and MgO in 1,2-dimethoxyethane (DME). The as-prepared borate magnesium oxide complex (BMOC) electrolyte delivers exceptional electrochemical performances, including extremely high anodic stability (up to 4.2 V vs. Mg), non-corrosivity to stainless steel and aluminium foils, and reasonable ionic conductivity of 1.74 x 10(-4) S cm(-1). In addition, by virtue of the non-nucleophilic characteristic of the BMOC electrolyte, S|| BMOC|| Mg cells have been assembled, which show a high stable discharge capacity of 1030 mAh g(-1) for 15 cycles and one well-defined voltage plateau of approximate to 1.1 V vs. Mg, yielding a desirable energy density beyond 1100 Wh kg(-1) based on the weight of sulfur in cathodes. |
