| 초록 |
We prepared the LNCA coated with carbon (LNCA/C). Several wt % series of LNCA/C were prepared by sol-gel method. We used the solid alcohol(Cetyl alcohol) as a carbon source, and treated different temperature (500-600℃ range) at air atmosphere. The LNCA/C is used as a cathode electrode for studying the electrochemical properties. After assembling the coin cell, we measured the electrochemical performances. The charge-discharge curves was measured using the Maccor galvanostat and the cyclic voltammetry(CV) curves was measured using a macpile potentiostat. Also the A.C. impedance was measured using the ivium. The Field Emission scanning electron microscope (FE-SEM) was used to investigate the morphology of the samples. By using XRD, TGA, FT-IR, and etc., the chemical or physical property was analyzed. |
