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Related Concept Videos

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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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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Ionic Bonds00:42

Ionic Bonds

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Overview
When atoms gain or lose electrons to achieve a more stable electron configuration they form ions. Ionic bonds are electrostatic attractions between ions with opposite charges. Ionic compounds are rigid and brittle when solid and may dissociate into their constituent ions in water. Covalent compounds, by contrast, remain intact unless a chemical reaction breaks them.
Opposing Charges Hold Ions Together in Ionic Compounds
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Ionic Strength: Effects on Chemical Equilibria01:19

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The addition of an inert ionic compound increases the solubility of a sparingly soluble salt. For example, adding potassium nitrate to a saturated solution of calcium sulfate significantly enhances the solubility of calcium sulfate. Le Châtelier's principle cannot predict this shift in the equilibrium. Instead, this could be explained in terms of changes in the effective concentration of the ions in solution in the presence of added inert salt.
In this solution, the primary...
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Molecular and Ionic Solids02:54

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Crystalline solids are divided into four types: molecular, ionic, metallic, and covalent network based on the type of constituent units and their interparticle interactions.
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Electrolyte and Nonelectrolyte Solutions02:21

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Substances that undergo either a physical or a chemical change in solution to yield ions that can conduct electricity are called electrolytes. If a substance yields ions in solution, that is, if the compound undergoes 100% dissociation, then the substance is a strong electrolyte. Complete dissociation is indicated by a single forward arrow. For example, water-soluble ionic compounds like sodium chloride dissociate into sodium cations and chloride anions in aqueous solution.
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Updated: Sep 15, 2025

Solid-state Graft Copolymer Electrolytes for Lithium Battery Applications
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High-Entropy Solid-State Electrolytes for Rechargeable Batteries: Mechanism, Structural Designs, Characterizations,

Feng Yu1, Yaoyu Wang1, Jun Liu1

  • 1School of Chemistry and Materials Science, Nanjing University of Information Science and Technology, Nanjing, 210044, China.

Small (Weinheim an Der Bergstrasse, Germany)
|July 16, 2025
PubMed
Summary
This summary is machine-generated.

High-entropy solid-state electrolytes offer enhanced conductivity and stability for rechargeable batteries, overcoming limitations of conventional materials. This review explores their principles, synthesis, performance, and applications in advanced electrochemical systems.

Keywords:
electrolyte optimizationhigh‐entropyrechargeable batterysolid‐state electrolytes

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Area of Science:

  • Materials Science
  • Electrochemistry
  • Energy Storage

Background:

  • Conventional electrolytes in rechargeable batteries face challenges like low conductivity and poor thermal stability.
  • High-entropy solid-state electrolytes (HSSEs) present a promising alternative to address these limitations.

Purpose of the Study:

  • To provide a comprehensive review of HSSEs, covering their fundamental principles, synthesis, performance, and applications.
  • To analyze how the high-entropy concept enhances electrochemical performance in solid-state electrolytes.
  • To offer insights into current research and future directions for HSSEs.

Main Methods:

  • Review of recent scientific literature on high-entropy solid-state electrolytes.
  • Analysis of fundamental mechanisms, synthesis strategies, and performance characteristics.
  • Discussion of applications in various electrochemical systems.

Main Results:

  • High-entropy disorder effectively enhances ionic conductivity in solid-state electrolytes.
  • A high-entropy approach promotes uniform atomic distribution, improving material stability.
  • HSSEs demonstrate potential to mitigate interfacial issues in electrochemical devices.

Conclusions:

  • HSSEs are a viable strategy for improving battery performance by enhancing ionic conductivity and stability.
  • The formation of single-phase structures in HSSEs contributes to multi-dimensional performance improvements.
  • Further research into HSSEs is crucial for advancing rechargeable battery technology.