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Standard Electrode Potentials

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On comparing the reactivity of silver and lead, it is observed that the two ionic species, Ag+ (aq) and Pb2+ (aq), show a difference in their redox reactivity towards copper: the silver ion undergoes spontaneous reduction, while the lead ion does not. This relative redox activity can be easily quantified in electrochemical cells by a property called cell potential. This property is commonly known as cell voltage in electrochemistry, and it is a measure of the energy which accompanies the charge...

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Updated: Jul 30, 2025

Aerosol-assisted Chemical Vapor Deposition of Metal Oxide Structures: Zinc Oxide Rods

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Oriented Zinc Metal Anode Based on Directional Recognition and Assembly.

Shimeng Zhang¹, Jianbo Li¹, Bowen Jin¹

¹State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing, 100029, P. R. China.

Small (Weinheim an Der Bergstrasse, Germany)

|May 17, 2023

Summary

Engineered zinc anodes with uniform (002) crystal orientation prevent dendrite growth in aqueous batteries. This strategy significantly enhances battery cycle life and stability for practical applications.

Keywords:

aqueous zinc batteries crystal orientation engineering layered double hydroxides (LDHs)textured electrodes zinc metal anodes

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Zinc-Sponge Battery Electrodes that Suppress Dendrites

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Published on: September 29, 2020

Area of Science:

Materials Science
Electrochemistry
Energy Storage

Background:

Aqueous zinc batteries face limitations due to zinc anode dendrite growth and side reactions, hindering practical use.
Crystal orientation engineering offers a promising strategy to address these inherent drawbacks in zinc anodes.
Achieving controlled zinc plating with specific crystallographic orientations remains a significant challenge.

Purpose of the Study:

To develop a method for manipulating zinc plating orientation to improve anode performance.
To investigate the use of activated layered double hydroxide (Act-LDH) for directional zinc deposition.
To evaluate the electrochemical performance of (002)-oriented zinc anodes in aqueous batteries.

Main Methods:

A directional cation recognition and crystal assembly strategy was employed using activated layered double hydroxide (Act-LDH).
Act-LDH was utilized as a recognition layer to anchor Zn2+ ions and guide the crystallographic orientation of zinc deposition.
Fabricated (002)-oriented zinc anodes were tested in symmetric and full aqueous zinc battery configurations.

Main Results:

Uniform (002)-oriented zinc metal anodes were successfully assembled with an ultrahigh (002)/(100) plane ratio of 15.7.
High Coulombic efficiency (CE) of 99.85% was maintained for over 18,000 cycles.
Symmetric cells with (002)-oriented anodes demonstrated significantly enhanced plating/stripping stability (9-12 times longer cycle life) compared to unoriented anodes.
Full batteries exhibited a high specific capacity of 120 mAh g-1 at 2 A g-1 over 1800 cycles.

Conclusions:

Directional cation recognition and crystal assembly using Act-LDH effectively enables the fabrication of (002)-oriented zinc anodes.
The (002)-oriented zinc anodes show superior stability and prolonged cycle life in aqueous zinc batteries, overcoming critical limitations.
This crystal orientation engineering approach holds significant potential for advancing high-performance aqueous zinc battery technology.