A novel nano-YSZ-Al alloy anode for Al–air battery
JOURNAL OF APPLIED ELECTROCHEMISTRY(2020)
摘要
Recently, aluminium–air batteries have received great attention because of their high specific capacity and low cost. However, corrosion of the aluminium (Al) anode is a critical problem limiting their practical applications. In this study, a decrease in the corrosion and an increase in the discharge performance of the Al anode were demonstrated through the use of nano-yttrium-stabilized zirconium (nano-YSZ). Three weight ratios of nano-YSZ blended with Al were prepared via mechanical stir casting. The surface hardness of the new Al alloys was determined using nano-indentation method and phase transition. Crystallite size measurements were conducted using X-ray diffraction analysis. Subsurface morphologies were conducted using scanning electron microscopy. Corrosion studies were carried out using electrochemical impedance spectroscopy and linear sweep voltammetry. The discharge and short-circuit studies of the prepared Al–air battery were undertaken using different Al alloy anodes. The results demonstrated that the Al anode having a higher ratio of nano-YSZ (5 wt%) had the highest discharge behaviour and excellent corrosion resistance making it a potential candidate as an electrode for the Al–air battery. Graphic abstract
更多查看译文
关键词
Nano-yttrium-stabilized zirconium, Air battery, Nano-indentation, Aluminium alloys, Mechanical stir casting
AI 理解论文
溯源树
样例
生成溯源树,研究论文发展脉络
Chat Paper
正在生成论文摘要