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Related Concept Videos

Standard Electrode Potentials03:02

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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Batteries and Fuel Cells03:12

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A battery is a galvanic cell that is used as a source of electrical power for specific applications. Modern batteries exist in a multitude of forms to accommodate various applications, from tiny button batteries such as those that power wristwatches to the very large batteries used to supply backup energy to municipal power grids. Some batteries are designed for single-use applications and cannot be recharged (primary cells), while others are based on conveniently reversible cell reactions that...
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Electrolysis03:00

Electrolysis

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In a galvanic cell, the electrical work is done by a redox system on its surroundings as electrons produced by the spontaneous redox reactions are transferred through an external circuit. Alternatively, an external circuit does work on a redox system by imposing a voltage sufficient to drive an otherwise nonspontaneous reaction in a process known as electrolysis. For instance, recharging a battery involves the use of an external power source to drive the spontaneous (discharge) cell reaction in...
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The Nernst Equation02:59

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Nonstandard Reaction Conditions
The interconnection between standard cell potentials and various thermodynamic parameters such as the standard free energy change ΔG° and equilibrium constant K has been previously explored. For example, a redox reaction involving zinc(II) and tin(II) ions at 1 M concentration with Eºcell = +0.291 V and ΔG° = −56.2 kJ is spontaneous.
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Electrodeposition01:08

Electrodeposition

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Electrodeposition is a technique used to separate an analyte from interferents by electrochemical processes. Here, the analyte is a metal ion that can be deposited on an electrode immersed in the sample solution. The electrochemical setup consists of an anode and a cathode. When an electric current is applied to the setup, oxidation occurs at the anode. At the cathode, which consists of a large metal surface, metal ions undergo reduction and deposit onto the surface.
Electrodeposition can...
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Voltaic/Galvanic Cells02:47

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Spontaneous Chemical Reactions
Spontaneous redox reactions occur abundantly in nature. The chemical reaction occurring in a disposable AA battery powering our remote controls is one such example of a spontaneous redox reaction. Another example is the immersion of coiled copper wire into an aqueous silver nitrate solution. The reaction shows a gradual, visually impressive color change from colorless to bright blue and the formation of a grey precipitate on the copper wire. In this experiment,...
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Electrolyte Engineering Enables High Performance Zinc-Ion Batteries.

Yanyan Wang1, Zhijie Wang1, Fuhua Yang1

  • 1School of Chemical Engineering and Advanced Materials, The University of Adelaide, Adelaide, South Australia, 5005, Australia.

Small (Weinheim an Der Bergstrasse, Germany)
|February 22, 2022
PubMed
Summary
This summary is machine-generated.

Advanced electrolyte strategies enhance zinc-ion batteries (ZIBs) by improving component compatibility, stability, and performance for large-scale energy storage. This review details design principles and recent progress in ZIB electrolyte engineering.

Keywords:
electrolyte designelectrolyte structurezinc-ion batteries

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Area of Science:

  • Electrochemistry
  • Materials Science
  • Energy Storage

Background:

  • Zinc-ion batteries (ZIBs) offer safety, low cost, and environmental benefits, making them suitable for large-scale energy storage.
  • However, ZIBs face challenges including electrolyte limitations impacting performance and stability.
  • The electrolyte is crucial, influencing ion transport, reaction kinetics, and side reactions.

Purpose of the Study:

  • To review advanced electrolyte strategies for optimizing zinc-ion batteries.
  • To address key challenges such as cathode-electrolyte compatibility, anode corrosion, and dendrite growth.
  • To provide insights into electrolyte design for enhanced stability, wearable applications, and temperature tolerance.

Main Methods:

  • Literature review of advanced electrolyte strategies for ZIBs.
  • Analysis of scientific mechanisms and electrolyte design principles.
  • Compilation of recent progress in ZIB electrolyte engineering.

Main Results:

  • Electrolyte optimization significantly impacts ZIB performance, including mass transport and reaction kinetics.
  • Advanced strategies improve cathode-electrolyte compatibility and inhibit anode issues like corrosion and dendrites.
  • Electrolyte engineering extends electrochemical stability windows and enhances operational temperature range.

Conclusions:

  • Electrolyte design is pivotal for overcoming ZIB limitations and unlocking their full potential.
  • Further research into novel electrolyte formulations and engineering is essential for practical ZIB applications.
  • This review offers a comprehensive perspective for advancing ZIB technology through electrolyte innovation.