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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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Electrochemical systems provide a fascinating insight into the dynamic interplay of charged species within various phases. One notable example is the interaction between a membrane permeable to K⁺ ions but not to Cl⁻ ions, separating an aqueous KCl solution from pure water. As K⁺ ions diffuse through the membrane, they generate net charges on each phase, leading to a potential difference between them.Similarly, when a piece of Zn is immersed in an aqueous ZnSO₄ solution,...
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Updated: Apr 16, 2026

Characterization of Electrode Materials for Lithium Ion and Sodium Ion Batteries Using Synchrotron Radiation Techniques
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Emerging High-Entropy Materials for Advanced Electrochemical Energy Storage and Conversion.

Yanyan Zhu1, Shaohua Long1, Haitao Li1

  • 1Institute of Nanochemistry and Nanobiology, School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, P. R. China.

ACS Nano
|April 15, 2026
PubMed
Summary
This summary is machine-generated.

High-entropy materials (HEMs) offer tunable properties for energy storage and conversion. This review clarifies their structure-property relationships to guide future HEM research and applications.

Keywords:
core effectsdesign principledimensional engineeringelectrocatalysiselectrochemical energy storagehigh-entropy materialspreparation methodsstructure−property relationship

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Area of Science:

  • Materials Science
  • Electrochemistry
  • Energy Storage

Background:

  • High-entropy materials (HEMs) show promise for electrochemical energy storage and conversion due to tunable compositions and unique properties.
  • Understanding the link between HEM complexity and performance is crucial for practical applications, but remains poorly understood.
  • Current research on HEMs is fragmented, lacking systematic design strategies.

Purpose of the Study:

  • To critically review recent advances in HEMs, addressing knowledge gaps in their definitions, properties, synthesis, and design.
  • To synthesize current understanding of HEMs in rechargeable batteries and electrocatalysis, focusing on performance and mechanisms.
  • To explore challenges and opportunities for integrating HEMs into renewable energy and sustainability frameworks.

Main Methods:

  • Comprehensive literature review of recent advances in high-entropy materials.
  • Analysis of synthesis techniques, intrinsic properties, and structural design strategies for HEMs.
  • Focus on performance metrics and mechanistic understanding in HEM applications for batteries and electrocatalysis.

Main Results:

  • HEMs possess exceptional compositional tunability and unique physicochemical properties.
  • A critical analysis of HEMs in rechargeable batteries and electrocatalysis is presented.
  • The review clarifies the internal structure-property relationship in HEMs.

Conclusions:

  • Systematic design strategies are needed to bridge the gap between HEM synthesis and practical applications.
  • Further research into HEMs can accelerate the integration into renewable energy and sustainability frameworks.
  • This perspective provides insights to guide future research and innovation in high-entropy materials.