Tuning the electronic energy level of covalent organic frameworks for crafting high-rate Na-ion battery anode
Sattwick Haldar, Dhananjayan Kaleeswaran, Deepak Rase, Kingshuk Roy, Satishchandra Ogale, Ramanathan Vaidhyanathan
Abstract
Lowering the LUMO levels of an anodic COF through the incorporation of N-rich modules favors electron accumulation on it, which sets up an electronic drive for the Na<sup>+</sup>ions to enter the anode from the electrolyte. The optimal framework⋯Na<sup>+</sup>interactions delivers excellent rate-performance.
Topics & Concepts
AnodeBattery (electricity)IonCovalent bondMaterials scienceEngineering physicsChemistryElectrodeEngineeringPhysicsPower (physics)Organic chemistryPhysical chemistryThermodynamicsCovalent Organic Framework ApplicationsAdvancements in Battery MaterialsMetal-Organic Frameworks: Synthesis and Applications