Polydopamine-Derived Nitrogen-Doped Carbon-Covered Na<sub>3</sub>V<sub>2</sub>(PO<sub>4</sub>)<sub>2</sub>F<sub>3</sub> Cathode Material for High-Performance Na-Ion BatteriesLulu Zhang, Xuelin Yang, Di Ma et al.|ACS Applied Materials & Interfaces|2018Cited by 119