A REDOX-ACTIVE POROUS ORGANIC FRAMEWORK FOR EFFICIENT ENERGY STORAGE IN NA-ION BATTERIES

摘要

The porous organic framework electrodes studied in this workrnexhibit > 215 mAh/g capacity as cathode materials for Na-ionrnbatteries. Ball milling the active material improves performance inrnNa cells. At cycle 20, the ball milled Na sample had a capacity ofrn~215 mAh/g and continued to show improving performance. Ourrnresults indicate that the porous organic framework electrode has thernpotential to be an attractive cathode materials for sodium-ionrnbatteries.