Construction of Bi-based amorphous/crystalline heterostructures for efficient potassium ion storage
Hankun Yang, Xiaoqing Zhang, Wei Li, Yufang Chen, Xiaolei Tang, Ying Wu, Qiliang Wei, Xianyou Wang, Hongbo Shu
Abstract
A heterogeneous structure generates interfacial built-in electric fields. The amorphization strategy enhances K + diffusion kinetics and K + adsorption energy and mitigates the impact of volume expansion during potassiation/de-potassiation processes.
Topics & Concepts
Amorphous solidHeterojunctionDiffusionIonMaterials sciencePotassiumElectric fieldChemical physicsKineticsEnergy storageVolume (thermodynamics)Chemical engineeringNanotechnologyCrystallographyThermodynamicsOptoelectronicsChemistryPhysicsMetallurgyEngineeringOrganic chemistryQuantum mechanicsPower (physics)Advancements in Battery MaterialsAdvanced Battery Materials and TechnologiesFerroelectric and Piezoelectric Materials