Highly Stable Aqueous Zinc Metal Batteries Enabled by an Ultrathin Crack-Free Hydrophobic Layer with Rigid Sub-Nanochannels.

ABSTRACT: Aqueous zinc-metal batteries (AZMBs) have received tremendous attentions due to their high safety, low cost, environmental friendliness, and simple process. However, zinc-metal still suffer from uncontrollable dendrite growth and surface parasitic reactions that reduce the Coulombic efficiency (CE) and lifetime of AZMBs. These problems which are closely related to the active water are not well-solved. Here, an ultrathin crack-free metal-organic framework (ZIF-7_x -8) with rigid sub-nanopore (0.3 nm) is constructed on Zn-metal to promote the de-solvation of zinc-ions before approaching Zn-metal surface, reduce the contacting opportunity between water and Zn, and consequently eliminate water-induced corrosion and side-reactions. Due to the presence of rigid and ordered sub-nanochan

SUBMITTER: Xu D 

PROVIDER: S-EPMC10520658 | biostudies-literature | 2023 Sep

REPOSITORIES: biostudies-literature