Sodium-ion batteries are electrochemical energy storage devices that utilize the intercalation and deintercalation of sodium ions between the positive and negative electrodes to achieve charging and discharging. Similar to lithium-ion batteries, sodium resources are more abundant and the cost is lower, making them particularly suitable for low-cost, large-scale energy storage scenarios, such as peak load regulation of the power grid. They are rapidly developing in terms of performance improvement and commercialization promotion.
