Effectively Regulating More Robust Amorphous Li Clusters for Ultrastable Dendrite-Free Cycling.

ABSTRACT: A disordered phase in Li-deposit nanostructure is greatly attractive, but plagued by the uncontrollable and unstable growth, and the nanoscale characterization in the structure. Here, fully characterized in cryogenic transmission electron microscopy (cryo-TEM), more robust amorphous-Li (ALi) clusters are revealed and effectively regulated on heteroatom-activating electronegative sites and an advanced solid electrolyte interphase (SEI) layer. Heteroatom-activating electronegative sites capably enhance the electrostatic interaction of Li⁺ and heteroatom-doping graphene-like film (HDGs), meaning lower Li diffusion barrier and larger binding energy that is confirmed by small nucleation overpotentials of 13.9 and 10 mV at 0.1 mA cm^-2 in the fluoroethylene carbonate-adding

SUBMITTER: Huang S 

PROVIDER: S-EPMC8498897 | biostudies-literature | 2021 Oct

REPOSITORIES: biostudies-literature