Sodium-ion batteries have received interest in the 2010s and 2020s as a complementary technology to lithium-ion batteries. Sodium-ion batteries have the advantages of being lower cost than lithium-ion batteries due to the high natural abundance of sodium. Sodium-ion batteries have similar power delivery and safety characteristics as lithium-ion batteries but lower weight and energy density requirements make them suitable for applications where these are not high priorities. The largest advantage of sodium-ion batteries is the low cost due to the natural abundance of sodium.