退火处理对Re_(0.92)Mg_(0.08)Ni_(2.81)Mn_(0.10)Co_(0.51)Al_(0.11)贮氢合金电化学性能的影响  

Effects of annealing treatment on electrochemical properties of Re_(0.92)Mg_(0.08)Ni_(2.81)Mn_(0.10)Co_(0.51)Al_(0.11) alloy electrodes

作　　者：邱海昌 桑丽萍[2] 

机构地区：[1]秦皇岛奥莱特腈纶有限公司,河北秦皇岛066001 [2]河北建材职业技术学院,秦皇岛河北066000

出　　处：《燕山大学学报》2005年第5期451-454,共4页Journal of Yanshan University

摘　　要：研究了不同退火温度对稀土——镁基多相贮氢合金Re0.92Mg0.08Ni2.81Mn0.10Co0.51Al0.11的电化学性能的影响。结果表明,退火处理显著改善了合金的电化学性能,其中,在1173K下退火处理的合金电极具有最大的放电容量和最好的循环稳定性。In this paper, the influence of heat treatment on the electrochemical properties of a Re-Mg based multi-phase Re0.92Mg0.08, Ni2.81Mn0.10Co0.51Al0.11 hydrogen storage alloy has been studied. The results show that the discharge capacity and cyclic stability have been improved markedly. The discharge capacity of the alloy annealed at 1173 K is the highest, and the cycle life of the alloy annealed at 1173 K is also the longest.

关 键 词：退火处理 贮氢合金 相结构 电化学性能 

分 类 号：TG139[一般工业技术—材料科学与工程]