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Cathode materials for halide-based aqueous redox flow batteries: recent progress and future perspectives.

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Aqueous redox flow batteries (ARFBs) offer a cost-effective solution for large-scale energy storage. This review highlights novel electrode materials for halogen-based ARFBs, enhancing efficiency and practicality.

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Area of Science:

  • Energy Storage
  • Electrochemistry
  • Materials Science

Background:

  • Global population growth drives demand for renewable energy solutions.
  • Lithium-ion batteries face safety and cost limitations for grid-scale applications.
  • Redox flow batteries (RFBs), particularly aqueous RFBs (ARFBs), present a stable and economical alternative for stationary energy storage.

Purpose of the Study:

  • To review novel electrode materials for halogen-based ARFBs.
  • To explore internal mechanisms and regulatory strategies for these electrode materials.
  • To promote innovation in energy storage and conversion technologies.

Main Methods:

  • Literature review of electrode materials for ARFBs.
  • Analysis of internal mechanisms and regulatory means for electrode performance.
  • Application of materials in zinc-halogen, hydrogen-halogen, and polysulfide-halogen ARFB systems.

Main Results:

  • Halogen-based ARFBs demonstrate potential for efficient, safe, and affordable energy storage.
  • Electrode material design is crucial for enhancing activity, sensitivity, and practicality.
  • Novel materials and strategies are identified for ARFB systems.

Conclusions:

  • Halogen-based ARFBs are promising for grid-scale energy storage.
  • Continued research in electrode materials is vital for ARFB advancement.
  • Optimized electrode design can lead to significant improvements in energy storage technologies.