酞菁铁添加剂对AB_3型镍氢电池电化学性能影响  

The effect of iron phthalocyanine additive on electrochemical properties of AB_3-type Ni-MH battery

作　　者：李斌强[1] 韩选利[1] 项中毅[1] 方黎[1] 

机构地区：[1]西安建筑科技大学理学院,陕西西安710055

出　　处：《应用化工》2014年第2期335-338,共4页Applied Chemical Industry

摘　　要：采用共沉淀还原扩散法制备了La0.67Mg0.33Ni2.5Co0.5合金。以固相法合成酞菁铁,研究了酞菁铁作为镍氢电池电解液添加剂和负极添加剂时对电池电化学性能的影响,结果表明,在电解液中,当酞菁铁添加量为0.045%时,电池的最大放电容量提高了20 mAh/g,容量衰减率降低了10.98%;在电池负极中,当酞菁铁添加量为1.0%时,电池的最大放电容量提高了40 mAh/g,容量衰减率降低了13.14%。Hydrogen-storage alloy La0.67 Mg0 33 Ni2.5 Co0. 5 was prepared by coprecitation reduction proliferation method. Iron phthalocyanine was synthetized by solid state reaction. The effect on electrochemical properties by using iron phthalocyanine as battery electrolyte additive and Ni-MH battery negative electrode additive were discussed. The results shows that battery＇ s discharge capacity increased 20 mAh/g and attenuation rate decreased 10.98% when the amount of iron phthalocyanine as electrolyte additive was 0.045%. Battery＇ s discharge capacity increased 40 mAh/g and attenuation rate decreased 13.14% when the amount of iron phthalocyanine as negative electrode additive was 1.0%.

关 键 词：酞菁铁 镍氢电池 储氢合金 电化学性能 

分 类 号：TQ163.5[化学工程—高温制品工业] TG139.7[一般工业技术—材料科学与工程]