Graphene‐Wrapped Na2C12H6O4 Nanoflowers as High Performance Anodes for Sodium‐Ion Batteries

Graphene-wrapped organic nanoflowers are synthesized from ultrasonic treatment of a simple microsized disodium salt (Na212H6O4) and graphene, which demonstrates a greatly enhanced electrochemical capacity, rate capability and cycling stability as organic Na(+) storage anode. This work suggests an effective architecture to make organic materials electrochemically energetic and stable for energy storage applications.