Enhancement of the discharge performance of Al-0.5Mg-0.1Sn-0.05Ga (wt.%) anode for Al-air battery by directional solidification technique and subsequent rolling process

Effect of microstructure on discharge performance of Al–0.8Sn–0.05Ga–0.9Mg–1.0Zn (wt%) alloy as anode for seawater‐activated battery

“…The detailed melting process of the alloy anode in this paper is referred from our previous paper. [ 19,20 ] After being homogenized at 510°C for 8 hr, the as‐cast alloy was processed into a plate with a thickness of 1.4 mm by hot rolling (350°C) and multipass cold rolling. Subsequently, the plate sample was divided into two parts and annealed at 150°C and 400°C for 2 hr, respectively.…”

“…An air electrode with a MnO 2 catalyst was employed as the cathode. [ 19–21 ] The alloy anode had a reaction area of 5 cm 2 . The cell voltages of the samples were obtained through the discharge of different current densities (i.e., 10, 20, 30, 40, 50, 60, 80, 90, 100, 120, 130, 140, 150, 160, 170, 180, 190, and 200 mA/cm 2 ) by the Land test system.…”

Contribution of constitutional liquation of the segregation phase to improve the electrochemical performance of Al–Sn based anodes

“…in the fabrication of aluminum alloys could effectively improve the activity of Al anodes in neutral electrolyte or reduce the corrosion rate in alkaline electrolyte. 13,[24][25][26] Alloying elements usually activate aluminum anodes through the dissolution-redeposition mechanism. 13,16 First, the solid solution alloy element (M) and the aluminum matrix are dissolved together to produce cations in the electrolyte (Al(M) -Al 3+ + M n+ + (3 + n) e).…”

Evaluation of Impurities in Aluminum Anodes for Al-Air Batteries

“…Yu et al prepared the Al anodes by laser sintering to improve electrochemical performance of the Al-air battery due to the enhancement of electrical contacts between Al nanoparticles . In addition, Wu et al developed a coarse-grained Al-0.5 Mg-0.1Sn-0.05Ga anode by a directional solidification technique in combination with a rolling process and subsequent annealing, and the anode delivered a maximum energy density of 3743.9 Wh kg –1 . Zheng et al reported that the Al anode processed by stir welding displayed a large voltage and energy density …”

“…20 In addition, Wu et al developed a coarse-grained Al-0.5 Mg-0.1Sn-0.05Ga anode by a directional solidification technique in combination with a rolling process and subsequent annealing, and the anode delivered a maximum energy density of 3743.9 Wh kg −1 . 21 Zheng et al reported that the Al anode processed by stir welding displayed a large voltage and energy density. 22 Pure Al anodes show diverse battery performance due to various impurities.…”