Characteristics of multi-component Ml-based hydrogen storage alloys and their hydride electrodes  

作　　者：LIQuan'an CHENYungui TUMingjing 

机构地区：[1]DepartmentofMaterialsScienceandEngineering,LuoyangInstituteofTechnology,Luoyang471039,China [2]DepartmentofMetalMaterials,SichuanUniversity,chengdu610065,China

出　　处：《Rare Metals》2002年第1期74-78,共5页稀有金属（英文版）

摘　　要：A series of multi-component M1-based hydrogen storage alloys witha cobalt atomic ratio of 0.40-0.75 were prepared. The electrochemicalproperties under different charge-discharge conditions and PCTcharaceristics measured by electrochemical method were investigated.The addition of other alloying elements for partial substitution ofCo low- ers the hydrogen equilibrium pressure and discharge capacity,but improves the cycling stability and makes the alloys keep nearlythe same rate discharge capability and high-temperature dischargecapability as those of the compared alloy. The reasons werediscussed.A series of multi-component M1-based hydrogen storage alloys witha cobalt atomic ratio of 0.40-0.75 were prepared. The electrochemicalproperties under different charge-discharge conditions and PCTcharaceristics measured by electrochemical method were investigated.The addition of other alloying elements for partial substitution ofCo low- ers the hydrogen equilibrium pressure and discharge capacity,but improves the cycling stability and makes the alloys keep nearlythe same rate discharge capability and high-temperature dischargecapability as those of the compared alloy. The reasons werediscussed.

关 键 词：rare earth alloy low-Co hydrogen storage alloy metal hydride electrode electrochemical property 

分 类 号：TM912[电气工程—电力电子与电力传动] TG139.[一般工业技术—材料科学与工程]