A general route of fluoride coating on the cyclability regularity of high-voltage NCM cathodes
Huixian Xie, Ziyang Liang, Dong Luo, Yaping Zhang, Xiaokai Ding, Jiaxiang Cui, Zuhao Zhang, Zhan Lin
Abstract
The effect of fluoride coatings, an effective approach to suppress HF corrosion, on the cycling stability of NCM523 cathodes is systematically studied. It is the first study to reveal that fluoride coatings significantly restrain interfacial reactions when, simultaneously, the fluoride suspension possesses an appropriate pH (near 4.0) and there is a small cation ionic radius.
Topics & Concepts
FluorideCoatingCathodeIonic radiusMaterials scienceIonic bondingMetalChemical engineeringInorganic chemistryIonChemistryNanotechnologyMetallurgyOrganic chemistryPhysical chemistryEngineeringAdvancements in Battery MaterialsSemiconductor materials and devicesHigh voltage insulation and dielectric phenomena