Mitigating the volume expansion and enhancing the cycling stability of ferrous fluorosilicate-modified silicon-based composite anodes for lithium-ion batteries
Jichang Sun, Xiaoyi Liu, Penglun Zheng, Yang Zhao, Yun Zheng, Jingchao Chai, Zhihong Liu
Abstract
This study introduces an FeSiF 6 additive synthesized via the reaction of HF with Si–Fe alloys. It prevents crystalline Li 15 Si 4 formation and promotes stable SEI film, significantly enhancing the cycling stability of silicon-based anodes.
Topics & Concepts
AnodeFerrousLithium (medication)Composite numberSiliconCyclingMaterials scienceIonVolume expansionVolume (thermodynamics)Chemical engineeringInorganic chemistryMetallurgyComposite materialChemistryElectrodeThermodynamicsPhysical chemistryOrganic chemistryHistoryEngineeringInternal medicinePhysicsArchaeologyMedicineEndocrinologyAdvancements in Battery MaterialsAdvanced Battery Materials and TechnologiesExtraction and Separation Processes