Acta Phys. -Chim. Sin. ›› 2012, Vol. 28 ›› Issue (11): 2625-2631.doi: 10.3866/PKU.WHXB201208032

• ELECTROCHEMISTRY AND NEW ENERGY • Previous Articles     Next Articles

Effects of Current Collectors on the Electrochemical Performance of Electrolytes for Rechargeable Magnesium Batteries

CHEN Qiang, NULI Yanna, YANG Jun, KAILIBINUER Kerimu, WANG Jiulin   

  1. School of Chemistry and Chemical Technology, Shanghai Jiaotong University, Shanghai 200240, P. R. China
  • Received:2012-06-20 Revised:2012-08-02 Published:2012-10-17
  • Supported by:

    The project was supported by the National Natural Science Foundation of China (20603022, 20973112).

Abstract:

The effects of metal (platinum, nickel, stainless steel (SS), copper and aluminum) and carbon paper (carbon fiber, graphite foil and carbon cloth) current collectors on the anodic stability and magnesium deposition-dissolution of the electrolytes (Mg(AlCl2BuEt)2/THF and (PhMgCl)2-AlCl3/THF) for rechargeable magnesium batteries were studied by cyclic voltammogram and constant current deposition-dissolution measurements. Nickel, stainless steel, copper and aluminum current collectors occur corrosion upon charging process. Nickel or stainless steel exhibits a higher stability, which can be used as the current collector for the cathode materials with a charging voltage under 2.1V (vs Mg/Mg2+). While copper is suitable for the cathode with a charging voltage under 1.8V (vs Mg/Mg2+). Furthermore, carbon paper current collectors have a higher anodic stability than metals. Carbon cloth is appropriate for the cathode materials with a charging voltage under 2.25V (vs Mg/Mg2+) in Mg(AlCl2BuEt)2/THF and 2.95V (vs Mg/Mg2+) in (PhMgCl)2-AlCl3/THF.

Key words: Rechargeable magnesium battery, Current collector, Metal, Carbon paper, Electrolyte

MSC2000: 

  • O646