Advancement in sodium-ion rechargeable batteries

With growing importance of high-performance and increasingly-portable energy storage, it is important that we consider sustainable solutions to global energy storage demand. Sodium-ion batteries (SIBs) are the highly regarded alternative to lithium-ion batteries, proposed due to its great sustainability without sacrifice in electrochemical performance. Layered oxide with tertiary or greater transition metals have shown to give the greatest performance among reported cathode materials. Promising anodes are composites of sodium alloying metals and carbon, but further work should be done to reduce the adverse effects of volume expansion. Finally, preliminary studies upon electrolyte formulation, inspired by the analogous chemistries of lithium-ion batteries, have laid the foundation for more complex studies. While already established at a remarkable speed, research in SIBs is still maturing with much progress still left to be explored.