On the research for anode materials of rechargeable lithium battery, there have been interests in some kinds of intermetallic compounds. In the present study, some compounds such as Mg_2Ge and Mg_2Sn were synthesized by mechanical alloying (MA), and the structural analysis was carried out to Mg_2Ge by X-ray diffraction and neutron scattering to investigate the lithium insertion mechanism and the electrochemical properties were evaluated for Mg_2Sn having two types of crystal phases, cubic and orthorhombic. Furthermore, CeSn_3 was synthesized as a new anode material and the electrochemical properties were investigated. As a result, it was found that, for Mg_2Ge, lithium atoms accommodate at the interstitial sites on lithiation without any degradation of the lattice and that, for Mg_2Sn, the orthorhombic phase with a loose lattice space has a larger charge-discharge capacity than the cubic one with a little tight lattice space. CeSn_3 was found to be an anode material with a high volumetric capacity and its cycling performance can be enhanced by initial mixing with lithium metal.
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