Drews, Janina published the artcileModeling of electron-transfer kinetics in magnesium electrolytes: Influence of the solvent on the battery performance, Product Details of C10H22O5, the main research area is electron transfer kinetics magnesium ion secondary battery electrolyte; Computational chemistry; Deposition mechanism; Desolvation; Kinetics; Rechargeable magnesium batteries.
The performance of rechargeable magnesium batteries is strongly dependent on the choice of electrolyte. The desolvation of multivalent cations usually goes along with high energy barriers, which can have a crucial impact on the plating reaction. This can lead to significantly higher overpotentials for magnesium deposition compared to magnesium dissolution In this work we combine exptl. measurements with DFT calculations and continuum modeling to analyze Mg deposition in various solvents. Jointly, these methods provide a better understanding of the electrode reactions and especially the magnesium deposition mechanism. Thereby, a kinetic model for electrochem. reactions at metal electrodes is developed, which explicitly couples desolvation to electron transfer and, furthermore, qual. takes into account effects of the electrochem. double layer. The influence of different solvents on the battery performance is studied for the state-of-the-art magnesium tetrakis(hexafluoroisopropyloxy)borate electrolyte salt. It becomes apparent that not necessarily a whole solvent mol. must be stripped from the solvated magnesium cation before the first reduction step can take place. For Mg reduction it seems to be sufficient to have one coordination site available, so that the magnesium cation is able to get closer to the electrode surface. Thereby, the initial desolvation of the magnesium cation determines the deposition reaction for mono-, tri- and tetraglyme, whereas the influence of the desolvation on the plating reaction is minor for diglyme and THF. Overall, we can give a clear recommendation for diglyme to be applied as solvent in magnesium electrolytes.
ChemSusChem published new progress about Battery electrolytes. 143-24-8 belongs to class ethers-buliding-blocks, name is 2,5,8,11,14-Pentaoxapentadecane, and the molecular formula is C10H22O5, Product Details of C10H22O5.
Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem