Physics

Electrode

Organic chemistry

Metal-organic framework

Separator (oil production)

Zinc

Adsorption

Engineering

Physical chemistry

Inorganic chemistry

Aqueous solution

Chemistry

Metallurgy

Materials science

Corrosion

Metal

Electrolyte

Chemical engineering

Electrochemistry

Supercapacitor

Thermodynamics

Nano-Micro Letters

Aqueous zinc-ion batteries (AZIBs) are one of the promising energy storage systems, which consist of electrode materials, electrolyte, and separator. The first two have been significantly received ample development, while the prominent role of the separators in manipulating the stability of the electrode has not attracted sufficient attention. In this work, a separator (UiO-66-GF) modified by Zr-based metal organic framework for robust AZIBs is proposed. UiO-66-GF effectively enhances the transport ability of charge carriers and demonstrates preferential orientation of (002) crystal plane, which is favorable for corrosion resistance and dendrite-free zinc deposition. Consequently, Zn|UiO-66-GF-2.2|Zn cells exhibit highly reversible plating/stripping behavior with long cycle life over 1650 h at 2.0 mA cm-2, and Zn|UiO-66-GF-2.2|MnO2 cells show excellent long-term stability with capacity retention of 85% after 1000 cycles. The reasonable design and application of multifunctional metal organic frameworks modified separators provide useful guidance for constructing durable AZIBs.

Metal–Organic Frameworks Functionalized Separators for Robust Aqueous Zinc-Ion Batteries