| 초록 |
A composite of iron oxide and carbon, together with an organic ligand (L–iron oxide), was prepared for the purpose of application in high-performance lithium-ion batteries. The prepared L–iron oxide–carbon had a structure in which several nanometers of iron oxide nanoparticles were embedded in the carbon. Organic ligand used in the synthesis process effectively inhibited iron precursor agglomeration and growth. Furthermore, organic ligand induced the formation of pores via decomposition. Pores generated in this way can effectively help with electrolyte penetration and lithium-ion diffusion. A comparison of electrochemical performances of composites of iron oxide and carbon with and without organic ligands (i.e., L–iron oxide–carbon vs. iron oxide–carbon) revealed that L–iron oxide–carbon exhibited more stable cycle performance up to the 100th cycle at a current density of 1 A/g. |
