Simultaneously Regulating Uniform Zn²⁺ Flux and Electron Conduction by MOF/rGO Interlayers for High-Performance Zn Anodes.

ABSTRACT: Owing to the merits of low cost, high safety and environmental benignity, rechargeable aqueous Zn-based batteries (ZBs) have gained tremendous attention in recent years. Nevertheless, the poor reversibility of Zn anodes that originates from dendrite growth, surface passivation and corrosion, severely hinders the further development of ZBs. To tackle these issues, here we report a Janus separator based on a Zn-ion conductive metal-organic framework (MOF) and reduced graphene oxide (rGO), which is able to regulate uniform Zn²⁺ flux and electron conduction simultaneously during battery operation. Facilitated by the MOF/rGO bifunctional interlayers, the Zn anodes demonstrate stable plating/stripping behavior (over 500 h at 1 mA cm^-2), high Coulombic efficiency (99.2% at 2

SUBMITTER: Wang Z 

PROVIDER: S-EPMC8187534 | biostudies-literature | 2021 Feb

REPOSITORIES: biostudies-literature