锂/钠离子电池锡锑合金负极材料改性的研究进展

Tin-antimony(SnSb) alloy materials have various advantages, such as, high theoretical capacity, high conductivity, and low reaction potential, which make SnSb alloy one of the most widely studied anode materials for lithium/sodium ion batteries. However, the huge volume variation of SnSb alloy anode material upon cycling leads to pulverization of the electrode material, which results in unsatisfactory cycling performance. In order to solve these issues, the research progress in recent years is introduced from the aspects of structural design, carbon composition, ternary alloys, modification of electrolytes and current collector. The synthsis routes and mechanisms of existing synthesis strategies are analyzed. Finally, the development direction of SnSb alloy anode materials in future research is proposed.