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Updated: Jun 7, 2025

Electrophoretic Crystallization of Ultrathin High-performance Metal-organic Framework Membranes

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Published on: August 16, 2018

Crystallographic Reorientation Induced by Gradient Solid-Electrolyte Interphase for Highly Stable Zinc Anode.

Ming Zhao^1,2, Yanqun Lv¹, Jun Qi²

¹College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310058, P. R. China.

Advanced Materials (Deerfield Beach, Fla.)

|November 16, 2024

Summary

A novel gradient solid-electrolyte interphase (SEI) promotes uniform zinc deposition and inhibits dendrites in zinc batteries. This breakthrough enhances battery lifespan and stability for long-term performance.

Keywords:

SEI Zn anodes crystallographic reorientation electrolytes

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Last Updated: Jun 7, 2025

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Zinc-Sponge Battery Electrodes that Suppress Dendrites

Zinc-Sponge Battery Electrodes that Suppress Dendrites

Published on: September 29, 2020

Area of Science:

Materials Science
Electrochemistry
Energy Storage

Background:

Aqueous zinc metal batteries are promising for sustainable energy storage.
Understanding zinc anode interfacial reactions is crucial for battery performance.
Dendrite growth and corrosion limit the lifespan of zinc metal anodes.

Purpose of the Study:

To elucidate the reaction pathways of zinc deposition on the anode.
To investigate the role of a gradient solid-electrolyte interphase (SEI) in controlling zinc deposition.
To enhance the stability and cycling performance of zinc metal anodes.

Main Methods:

Fabrication of a gradient SEI layer on the zinc anode.
Analysis of SEI composition (B-O and C species) and structure.
Electrochemical testing of symmetric and asymmetric zinc batteries (Zn//Zn, Zn//Cu, Zn//I2).

Main Results:

The gradient SEI promotes preferential formation of single-crystalline zinc nuclei and dense Zn(002) deposition.
Enhanced Zn2+ nucleation rate and reduced nucleus size observed due to SEI.
Stable cycling with >99.5% reversibility over 5000 cycles in Zn//Cu batteries and 3000 cycles in anode-free Zn//I2 batteries.

Conclusions:

The gradient SEI effectively suppresses dendrite growth and metal corrosion.
Crystallographic reorientation to Zn(002) planes ensures uniform plating/stripping.
This strategy significantly improves the long-term stability and performance of aqueous zinc metal batteries.