The electrochemical behavior of an aluminum alloy anode for rechargeable Al-ion batteries using an AlCl3–urea liquid electrolyte

A novel Al-ion battery based on an Al alloy anode, pyrolytic graphite paper cathode, and low-cost AlCl3–urea liquid analogue electrolyte was successfully established. The present Al alloy/PG battery can afford a capacity as high as 105 mA h g−1.

The Effects of Pb, Bi on the Anodic Properties of Al-Zn-Ga-In Series Alloy

The electrochemical properties of Al-Zn-Ga-In-(Pb/Bi) anode alloy are studied by electrochemical test, including constant current test, polarization curve test, AC impedance test. Metallographic microscope is used to observe the microstructure of the alloy . energy spectrum technical is used to analyze the second phase elements. The results showed that the adding of element Pb or Bi both can attain more negative open-circuit potential; the adding of Bi makes the working potential shift positively, and reduces the current efficiency; 2% Pb content can attain more negative working potential, and current efficiency are increased slightly; the series anode the morphology of dissolution relatively uniformly in 3% NaCl solution; anodic polarization are all relatively smaller than cathodic polarization, and they have good anodic polarization properties. The overall electrochemical properties of Al-3Zn-0.015Ga-0.025In-2Pb alloy are the best in these five aluminum alloy anode.

Effect of Rolling Technology on the Microstructure and Properties of High Active Aluminum Alloy Anode

The effect of rolling technology on the microstructure, electrochemical property and anti-corrosion property of Al-Mg-Sn-Bi-Ga-In alloy anode in alkaline solution (80°C, Na2SnO3 + 5mol/L NaOH) has been analyzed according to the chronopotentiometry (E-T curves), hydrogen collection tests and modern microstructure analysis. The results show that when controlling the pass deformation at 40%, with the increase of rolling temperature, both electrochemical activity and anti-corrosion property of Al anode increase first and then decrease. When the rolling temperature is 420°C, the aluminum alloy anode has the most negative electrode potential of about -1.521V (vs.Hg/HgO) and the lowest hydrogen evolution rate of 0.1716mL/ (min•cm2). The optimum comprehensive performance of Al alloy anode has been obtained.

Corrosion Behavior Improvements of High Active Aluminum Alloy Anode in Alkaline Solution by Adding Inhibitors

The Na2SnO3 and H-N-R inhibitors effects on the high active aluminum alloy in alkaline solution (805mol/LNaOH) have been systematically studied by hydrogen collection and electrochemical measurement in the present investigation. The results showed that the hydrogen evolution rate was low at the value of 0.404 mL/ (min·cm2) in alkaline solution with 0.01mol/L Na2SnO3, but the electrode potential was only -1.515Vvs.SCE and it moved to the positive direction seriously; When adding 10wtH-N-R and 0.01mol/LNa2SnO3 into the alkaline solution simultaneously, the aluminum alloy anode had a lower hydrogen evolution rate of 0.342mL/ (min·cm2) and a more negative electrode potential of -1.591Vvs.SCE. The electrochemical performance of aluminum alloy anode has been improved greatly by the cooperation of H-N-R and Na2SnO3.