Iron-based sodium-ion batteries are constructed using improved iron oxide anode and Prussian blue cathode.
Due to their low cost and improved safety compared to lithium-ion batteries, sodium-ion batteries have attracted worldwide attention in recent decades.
A schematic illustration showing the preparation of HCM from a single sodium lignin sulfonate source and the process of Na storage.
Cooperatively assembled, nitrogen-doped, ordered mesoporous carbon/iron oxide nanocomposites for low-cost, long cycle life sodium-ion batteries