Abstract
Electrochemical intercalation of lithium into intermetallic compounds (IMC) MgCd and MgCd3 out of propylene carbonate solutions of LiBF4 is studied. According to chronopotentiometry data, during the intercalation, lithium forms compounds with cadmium: Li3Cd on MgCd or LiCd and Li3Cd on MgCd3. Reactions of solid-phase substitution, which occur on the electrodes, are accompanied by the destruction of initial IMC and generation of magnesium atoms. Chronoamperometry of MgCd–(Li) and MgCd3–(Li) shows the lithium intercalation to be limited by nonstationary diffusion of lithium in the solid phase. The lithium diffusion in MgCd is slower and that in MgCd3is faster than in Cd. The calculated potential dependences of the diffusion coefficient for lithium in MgCd and MgCd3 are linear in semilogarithmic coordinates.
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Ozeryanskaya, V.V., Guterman, V.E. Phase Formation and Kinetics of Electrochemical Intercalation of Lithium into Intermetallic Compounds MgCd and MgCd3 . Russian Journal of Electrochemistry 40, 760–766 (2004). https://doi.org/10.1023/B:RUEL.0000035262.05417.af
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DOI: https://doi.org/10.1023/B:RUEL.0000035262.05417.af