Electrochemical Characterization of (PhMgCl)2-AlCl3/Mixed Ether Electrolytes

Authors

Fei-Fei WANG, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China;
Yong-Sheng GUO, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China;
Jun YANG, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China;
Li-Yan-Na NU, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China;
Jiu-Lin WANG, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China;

Corresponding Author

Jun YANG(yangj723@sjtu.edu.cn)

Abstract

The (PhMgCl)2-AlCl3 salts were prepared and the electrochemical properties of (PhMgCl)2-AlCl3 electrolytes containing dimethoxyethane(DME)+THF, Diglyme(DG)+THF and Tetraglyme(TG)+THF solvents with different proportions on various metal electrodes were studied. Compared with (PhMgCl)2-AlCl3/THF, the (PhMgCl)2-AlCl3/DG+THF(3:2) solvents showed high ionic conductivity of 1.605×10-3 S?cm-1, good reversible Mg deposition behavior and anodic anti-oxidation performance with an electrochemical window wider than 2.8 V. In addition, the DG+THF mixed solvent could greatly lower the saturated vapor pressure by reducing from 23.46 kPa to 9.41 kPa, which suppresses volatilization of the electrolyte and improves the overall safety of rechargeable battery. Among Pt, Ni, Cu and Al electrodes, Pt offers the best electrochemical properties, while Al the worst.

Graphical Abstract

Keywords

electrolyte solution, vapor pressure, reversible Mg deposition, rechargeable magnesium battery

DOI Link

https://doi.org/10.61558/2993-074X.2880

Publication Date

2012-02-28

Online Available Date

2011-12-08

Revised Date

2011-11-30

Received Date

2011-11-03

Recommended Citation

Fei-Fei WANG, Yong-Sheng GUO, Jun YANG, Li-Yan-Na NU, Jiu-Lin WANG. Electrochemical Characterization of (PhMgCl)2-AlCl3/Mixed Ether Electrolytes[J]. Journal of Electrochemistry, 2012 , 18(1): Article 9.
DOI: 10.61558/2993-074X.2880
Available at: https://jelectrochem.xmu.edu.cn/journal/vol18/iss1/9