New approaches for rare earth-magnesium based hydrogen storage alloys

As the most possibility applied to the next generation negative electrode materials of Ni/ MH second battery, rare earth (RE)-magnesium (Mg) based alloys have been developed over the last few years. Recent advances about the RE-Mg based intermetallic compounds on the crystal structures, hydrogenation behaviors and electrochemical performances are reviewed in the paper. On the other hand, new results about the preparation and modification methods of the alloys are also covered in details.the National Natural Science Foundation of China,Guangxi Collaborative Innovation Center of Structure and Property for New Energy and Materials Science and Engineering,supported by the Ministry of Science and Technology of China中国科学引文数据库(CSCD)150-572