| 초록 |
A strategy utilizing (inter)metallic anode host materials as an anode has been extensively investigated for sodium-ion cells, where Na-ions react with a variety of (inter)metallic elements – including antimony (Sb), tin (Sn), and phosphorus (P) – to form an alloy during sodiation. However, the large volume expansion during the alloying results in fast capacity decay and necessitates appropriate approaches to overcome the difficulties. In this regard, composite anode materials in which the electrochemically active (inter)metallic components is dispersed in a conductive matrix could be an effective way to obtain high-performance sodium-ion cells. Herein, the synthesis, electrochemical performance, and sodium-ion storage mechanisms of various nano-engineered alloy anodes (e.g. Sn, Sb, and P) with electrochemically inactive components (e.g. TiC or Al2O3) will be discussed. |
