
sodium-ion batteries
Sodium-ion batteries are energy storage devices that use sodium ions to carry charge between two electrodes, similar to lithium-ion batteries but with sodium as the key element. Sodium is more abundant and cheaper than lithium, making these batteries potentially more economical and sustainable. During charging, sodium ions move into the battery's positive electrode, and during discharge, they flow back, generating electricity. While they share similar principles with lithium-ion batteries, sodium-ion batteries often have different materials and performance characteristics, and they’re being researched as a promising alternative for large-scale energy storage and electric vehicles.