Spontaneous Strain Buffer Enables Superior Cycling Stability in Single-Crystal Nickel-Rich NCM Cathode
He Zhu, Yu Tang, Kamila M. Wiaderek, Olaf J. Borkiewicz, Yang Ren, Jian Zhang, Jincan Ren, Longlong Fan, Cheng Chao Li, Danfeng Li, Xun‐Li Wang, Qi Liu
Abstract
pair distribution function analysis, an intermediate monoclinic distortion and irregular H3 stack are revealed in the single crystals upon charging-discharging processes. These structural changes might be driven by unique Li-intercalation kinetics in single crystals, which enables an additional strain buffer to reduce the cracks and thereby ensure the high cycling stability.
Topics & Concepts
CathodeMaterials scienceMonoclinic crystal systemCrystalliteSingle crystalIntercalation (chemistry)CrystallographyChemical engineeringCapacity lossAnodeElectrodeCrystal structureChemistryMetallurgyInorganic chemistryEngineeringPhysical chemistryAdvancements in Battery MaterialsAdvanced Battery Materials and TechnologiesGraphene research and applications