Abstract
Oxygen-rich carbon material is successfully fabricated from a porous carbon and evaluated as anode for sodium-ion battery. With the strategy of optimal combination of fast surface redox reaction and reversible intercalation, the oxygen-rich carbon anode exhibits a large reversible capacity (447 mAh g(-1) at 0.2 A g(-1)), high rate capability (172 mAh g(-1) at 20 A g(-1)), and excellent cycling stability.