Sodium-ion batteries use sodium ions as charge carriers rather than lithium ions. The electrolyte used is typically a liquid solution of sodium salts dissolved in an organic solvent. For the anode, hard carbon materials that can reversibly insert and extract sodium ions are commonly used. On the cathode side, transition metal oxides or phosphates that allow for sodium ion intercalatio... https://www.newswirestats.com/sodium-ion-battery-market-size-and-share-trends-growth-analysis-and-forecasts/