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J. Electrochem. Sci. Technol > Volume 3(4); 2012 > Article
Journal of Electrochemical Science and Technology 2012;3(4):159-164.
DOI: https://doi.org/10.5229/JECST.2012.3.4.159   
Effect of Electrolytes on Electrochemical Properties of Magnesium Electrodes
Se-Young Ha, Anna Ryu, Woosuk Cho, Sang-Gil Woo, Jae-Hun Kim, Kyu Tae Lee, Jeom-Soo Kim, Nam-Soon Choi
Interdisciplinary School of Green Energy, Ulsan National Institute of Science and Technology (UNIST);Advanced Batteries Research Center, Korea Electronics Technology Institute (KETI);Advanced Batteries Research Center, Korea Electronics Technology Institute (KETI);Advanced Batteries Research Center, Korea Electronics Technology Institute (KETI);Advanced Batteries Research Center, Korea Electronics Technology Institute (KETI);Interdisciplinary School of Green Energy, Ulsan National Institute of Science and Technology (UNIST);Advanced Batteries Research Center, Korea Electronics Technology Institute (KETI);Interdisciplinary School of Green Energy, Ulsan National Institute of Science and Technology (UNIST);
Abstract
Magnesium (Mg) deposition and dissolution behaviors of 0.2 M $MgBu_2-(AlCl_2Et)_2$, 0.5 M $Mg(ClO_4)_2$, and 0.4M $(PhMgCl)_2-AlCl_3$-based electrolytes with and without tris(pentafluorophenyl) borane (TPFPB) are investigated by ex situ scanning electron microscopy (SEM) and galvanostatic cycling of Mg/copper (Cu) cells. To ascertain the factors responsible for the anodic stability of the electrolytes, linear sweep voltammogrametry (LSV) experiments for various electrolytes and solvents are conducted. The effects of TPFPB as an additive on the anodic stability of 0.4M ($(PhMgCl)_2-AlCl_3$/THF electrolyte are also discussed.
Key Words: Anodic limit, Electrolyte, Magnesium deposition, Magnesium dissolution, Scanning electron microscopy


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