铝合金由于具有能量密度大、密度低、材料来源丰富、价格便宜及绿色环保等优点,正成为一种理想的新型阳极材料.为推动铝阳极电池的实用化,研制新型高电性能铝合金阳极材料有重要的意义.制备了Al-Ga-In-Pb-Mg,Al-Ga-In-Pb-Mn,Al-Ga-In-Pb-Sn 3种新型铝合金阳极材料.采用腐蚀失重法、排水法和电化学方法分别测试了合金的自腐蚀速率、析氢速率及电化学性能,并采用扫描电镜(SEM)观察了铝合金阳极腐蚀后的表面形貌.结果表明,新型铝合金阳极具有较负的开路电位、低的自腐蚀速率和析氢速率,其中以Al-Ga-In-Pa-Mn-合金的开路电位,Al-Ga-In-Pa-Mg合金的自腐蚀速率和析氢速率最低;并且随着极化电位的升高,各合金均具有较高的电化学活性;同时,3种合金在放电状态下均具有稳定的工作电位.
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