Electrochemical discharge performance of the Mg–Al–Pb–Ce–Y alloy as the anode for Mg–air batteries

Abstract

The electrochemical discharge performance of the Mg–Al–Pb–Ce–Y alloy in 3.5 wt% NaCl solution is investigated by using electrochemical techniques and compared with that of pure magnesium, AZ31, and Mg–Al–Pb alloys.

The role of Al 2 Ca and Al 2 (Sm,Ca,La) particles in the microstructures and electrochemical discharge performance of as‐extruded Mg‐3wt.%Al‐1wt.%Zn‐based alloys for primary Mg‐air batteries

“…The AZ31 alloy with Al 2 Ca particles has much larger R t value than the original, indicating a better corrosion resistance. An additional component ( CPE f and R f ) is added for the equivalent circuit of RE‐modified AZ31 alloys, illustrating the detachment of Mg (OH) 2 film on the corroded alloy surface …”

“…An additional component (CPE f and R f ) is added for the equivalent circuit of RE-modified AZ31 alloys, illustrating the detachment of Mg (OH) 2 film on the corroded alloy surface. 25 The electrochemical behaviors show that the AZ31 alloys bearing Al 2 Ca and Al 2 (Sm,Ca,La) particles have better corrosion resistance, while they exhibit higher cell voltage during discharge ( Figure 5). It can be explainable.…”

“…Wang and his coworkers reported the excellent discharge performance of Pb‐doped Mg‐based anodes (AP65 alloy for seawater activated batteries), and Wen et al followed‐up a systematic work on the compositional optimization of Mg‐Al‐Pb‐(Zn) anode . Similarly, minor RE (Ce, La, Y, etc) was also considered for the modification of Mg‐Al‐Pb anode to receive desired discharge performance . The Sn‐doped Mg anodes also drew some attention because of their promoted discharge performance after different post‐treatment .…”

“…23 Similarly, minor RE (Ce, La, Y, etc) was also considered for the modification of Mg-Al-Pb anode to receive desired discharge performance. [24][25][26][27][28] The Sn-doped Mg anodes also drew some attention because of their promoted discharge performance after different post-treatment. [29][30][31][32] Yuan et al investigated the electrochemical performance of Mg-3Al anodes with Ga, In, and Sn.…”

Effects of microstructure evolution on discharge properties of AZ31 alloy as anode for seawater battery

“…[8][9][10] Doping with alloying elements, such as Al, Li, Hg, Pb, Ga, Sn, In, Ce, and so on, is an effective way to improve the discharge performance of magnesium alloys. [6,[10][11][12][13][14] Although Mg-Al-Pb and Mg-Hg-Ga alloys reveal excellent discharge activity and utilization efficiency, Pb, Hg, and Ga can be very harmful to the environment. [4,15,16] Mg-Li anodes can be a promising candidate for seawater battery anodes.…”