| 초록 |
Considerable researches have been devoted to the study of lithium ion batteries (LiBs) in the past decades due to their high theoretical capacity and other properties, which like high charge retention, high volumetric and gravimetric specific energy, to be a high-performance LiB option. Metal silicides have advantageous features compared to other silicon-based anode materials, which are maintaining nano-structure during electrochemical reaction because of their high stability. In this study, we treated metal silicides under various temperatures and atmospheres. We characterized all samples by XRD, N2 adsorption & desorption, scanning electron microscope and electrochemical tests. Among them, molybdenum silicide (MoSi2) shows a remarkable transition. There were substantial structural and chemical transition throughout the calcination in air. And these transitions provoked compelling electrochemical improvements in reversible capacity and cycle retention. |
