Substituting inert phosphate with redox-active silicate towards advanced polyanion-type cathode materials for sodium-ion batteries
Ruimin Sun, Mingyue Dou, Yuxiang Zhang, Jingyu Chen, Yuhao Chen, Bo Han, Kaisheng Xia, Qiang Gao, Xiaoxiao Liu, Zhao Cai, Chenggang Zhou
Abstract
A redox-active anion substitution strategy is proposed to simultaneously improve the energy density and electronic conductivity of polyanion-type Na 3 V 2 (PO 4 ) 3 cathode materials towards next-generation sodium-ion batteries.
Topics & Concepts
CathodeMaterials scienceAnodeRedoxPhosphateFaraday efficiencyElectrochemistryChemical engineeringSodium silicateInertSilicateIonic bondingBattery (electricity)IonPotassium-ion batteryInorganic chemistryLithium vanadium phosphate batteryElectrodeChemistryComposite materialPhysical chemistryMetallurgyOrganic chemistryPower (physics)Quantum mechanicsPhysicsEngineeringAdvancements in Battery MaterialsAdvanced Battery Materials and TechnologiesSupercapacitor Materials and Fabrication