ACTIVATION OF AB_2 TYPE Zr-BASED HYDRIDE ELECTRODES

作     者：X.G.Yang K.Y.Shu X.B.Zhang Y.Q.Lei Q.D.Wang W.K.Zhang G.L.Lu 

作者机构：Zhejiang Univ Hangzhou China 

出 版 物：《Acta Metallurgica Sinica(English Letters)》 (金属学报（英文版）)

年 卷 期：1998年第11卷第2期

页      面：107-110页

核心收录：

学科分类：08[工学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

主　　题：Zr-Cr-Ni hydrogen storage alloy La alloying electrode performance 

摘      要：The effect of La alloying on the crystalline characteristics, electrochemical capacity and activity of AB2 type Zr-Cr-Ni hydride electrodes was investigated. It was found that La alloying was able to shorten the activating process from 15 cycles of La-free alloy to 2 cycles, and that the main phase shifts from C14 to C15 by XRD analysis. It may be attributed to the modification of surface chemical states and change in internal microstructures. However, the cycling stability was also found to degrade severely for La-containing hydride electrode because of the collapse of its distorted lattice.