Enhancing battery safety in Sodium-Ion Batteries: Introduction of a novel electrolyte additive to suppress Sodium plating and improve lifespan

The electrolyte plays a crucial role in improving key performance indicators (KPIs) such as efficiency, cost, safety and lifespan of a Sodium-Ion Battery (SIB). By adjusting the electrolyte to prevent active material degradation and sodium plating on the anode, which represent currently occurring problems while cycling SIBs at high cut-off voltages, an enhancement in performance of SIBs can be achieved. Patent and literature analyses were conducted to identify relevant existing electrolyte components, providing a foundation for further electrolyte development and research on new additives. Therefore, new electrolyte additives were investigated to improve the safety and lifespan of SIBs.