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Synthesis of Intermetallic Compounds by Using Lithium Hudride 被引量:1
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作者 SokolovVV OsadchayaLI 等 《Journal of Rare Earths》 SCIE EI CAS CSCD 2002年第4期256-258,共3页
Intermetallic compounds of AB 5 type are promising materials for M-H batteries. In this report we present the results about the influence of quality of intermetallic compounds prepared by a new method of synthesis on... Intermetallic compounds of AB 5 type are promising materials for M-H batteries. In this report we present the results about the influence of quality of intermetallic compounds prepared by a new method of synthesis on their electrochemical properties. The well-known intermetallic Ln 1-xM xNi 5-yMe y (Ln=La, Mm; M=Zr; Me=Mn, Ge, Sn, Al, Co+Sn, Co+Ge) compounds were synthesized by using mixtures of oxides, chlorides and carbonates of metals by interaction with lithium hydride at 700~1000 ℃. Prepared samples have the uniform microstructure with average dimension of particles about 20~30 μm. Electrochemical tests show that kinetic behaviour of compositions are satisfactory under current up to 200 mA·g -1. These compositions require practically no activation and limiting values of the discharge capacity were reached at 2~3 cycle up to 300 mAh·g -1, which can be considered as most promising for practice. 展开更多
关键词 rare earths hydrogen absorbing compounds Ni-MH battery ELECTROCHEMISTRY
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