Related Experiment Video
Updated: Feb 25, 2026
Synthesis of Ionic Liquid Based Electrolytes, Assembly of Li-ion Batteries, and Measurements of Performance at High Temperature
Published on: December 20, 2016
Electrolyte Based on Easily Synthesized, Low Cost Triphenolate-Borohydride Salt for High Performance Mg(TFSI)2-Glyme
Seydou Hebié1,2, Hoang Phuong Khanh Ngo1,2, Jean-Claude Leprêtre1,2
1Université Grenoble Alpes, CNRS , Grenoble INP, LEPMI, F-38000 Grenoble, France.
Abstract:
A new class of electrolyte based on TFSI- and triphenolate-borohydride anions was designed and produced which fulfill all requirements of easy synthesis, high ionic conductivity, wide potential window, and noncorrosion of Al current collector. The electrolyte composed of magnesium triphenolate borohydride and Mg(TFSI)2 in glyme simultaneously displays a high conductivity of 5.5 mS cm-1 at 25 °C and a reversible Mg plating/stripping with high current density and Coulombic efficiency at room temperature. By addition of a slight amount of MgCl2 to this electrolyte, a Coulombic efficiency of 90% in an SS/Mg cell, stable cycling performance, and a wide anodic potential of 3.4 V vs Mg2+/Mg on Al current collector can be reached. Reversible and efficient Mg insertion/deinsertion with a high capacity of 94 mAh g-1 and 96% Coulombic efficiency was obtained in a Mo6S8 Chevrel cathode phase.
Related Concept Videos
03:12Batteries and Fuel Cells
01:14Acid Halides to Ketones: Gilman Reagent
As shown below, the mechanism proceeds in two steps. First, one of the alkyl groups of the reagent acts as a nucleophile and attacks the acyl carbon of the acid chloride to form a tetrahedral intermediate. This is followed by the reformation of the carbon–oxygen...
02:48Ionic Bonding and Electron Transfer