铝具有优异的电化学性能,是开发电池的理想材料,但在应用上仍存在着一些有待解决的问题。将铝用于性能优于许多其它常用电池的铝 空气电池的阳极材料,通常采用铝 镓系列合金,而铝 铟系列合金的应用由于铝与铟合金化的难度而受到限制。研究了将锌分别作为铝合金添加元素及电解液添加剂引入铝 空气电池用铝 铟阳极中,锌对铝 铟阳极的影响。结果表明,锌能有效地促进铝与铟的合金化;在碱性电解液中,Al In Zn合金电极的腐蚀电位比纯铝的负移了约70mV,表明锌能有效地降低铝阳极极化,使析氢速度大大降低;在中性电解液中,当ZnCl2浓度增至5.8×10-3mol·L-1时,活化电位负移了近300mV,去极化效果最为理想,ZnCl2浓度增至7.7×10-3mol·L-1时,阳极利用率提高至68.4%,自腐蚀电位达到-1.42V,同时对降低铝电极的负差数效应也有较好效果。
【英文摘要】
As the ideal material of batteries, Al has excellent electrochemical properties. The Al-Ga alloys are common-used anodic materials for Al-air battery, whose performance is superior to other batteries. However, the application of Al-In alloy is limited by the difficulty of the alloying between the two elements. Zn was introduced into the Al-In anode for Al-air battery as the additive of Al alloy and electrolyte and its effect on Al-In anode was researched. The results show that Zn can improve the alloying o...
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