稀土-镁-镍基贮氢电极合金的研究进展  

Research Progress of R-Mg-Ni-Based Hydrogen Storage Electrode Alloys

作　　者：黄理[1] 刘永锋[1] 李瑞[1] 高明霞[1] 潘洪革[1] 

机构地区：[1]浙江大学,浙江杭州310027

出　　处：《稀有金属材料与工程》2012年第3期542-547,共6页Rare Metal Materials and Engineering

基　　金：高等学校博士学科点专项科研基金(20070335005);国家"863"计划项目(2009AA05Z106)

摘　　要：具有超结构特征的稀土-镁-镍基贮氢合金作为新一代金属氢化物/镍(MH/Ni)电池负极材料,因其高的放电容量和好的倍率放电性能,是目前贮氢电极合金发展的重点材料之一。本文从材料相结构、贮氢特性和电化学性能之间的关系出发,综述了近年来国内外稀土-镁-镍基AB3型、A2B7型和A5B19型贮氢电极合金的研究进展,为开发兼具高容量和长寿命的新型稀土系贮氢电极合金提供有价值的参考。Rare earth-Magnesium-Nickel-based hydrogen storage alloys with superstructure have attracted intensive interests as the next-generation negative electrode materials of nickel/metal hydride （Ni/MH） batteries due to their high hydrogen storage capacity and high rate dischargeability. From the point of view of the correlation between phase structure, hydrogen storage characteristics and electrochemical properties, the state-of-arts of the R-Mg-Ni-based AB3, A2B7 and A5B19-type hydrogen storage electrode alloys were reviewed. It is expected to be helpful for exploring novel rare earth-based hydrogen storage electrode alloys with high discharge capacity and long cycling life.

关 键 词：R-Mg-Ni基贮氢合金 相结构 贮氢特性 电化学性能 

分 类 号：TG139.7[一般工业技术—材料科学与工程] TG146.45[金属学及工艺—合金]