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Building robust anode-electrolyte interfaces for durable and efficient aqueous Al-ion batteries.

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Aqueous aluminum-ion batteries (AAIBs) show promise for large-scale energy storage. Optimizing the anode-electrolyte interface (AEI) is key to improving their stability and performance.

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Area of Science:

  • Electrochemistry
  • Materials Science
  • Energy Storage

Background:

  • Aqueous aluminum-ion batteries (AAIBs) are gaining attention for large-scale energy storage due to abundant resources, high capacity, and safety.
  • The anode-electrolyte interface (AEI) is critical for AAIB performance and stability.
  • Current research focuses on understanding and improving AEI properties.

Purpose of the Study:

  • To provide a comprehensive review of synergistic optimization strategies for AAIB anode materials and electrolytes.
  • To highlight the pivotal role of the AEI in AAIB performance and cycling stability.
  • To explore new pathways for enhancing AEI performance through material design and electrolyte modification.

Main Methods:

  • Systematic review of recent advancements in AAIB anode materials.
  • Evaluation of design strategies for anode materials and their electrolyte interactions.
  • Analysis of electrolyte modification techniques and their impact on AEI performance.

Main Results:

  • Identified challenges and design strategies for improving AEI stability in various anode materials.
  • Evaluated the effectiveness of different electrolyte modification techniques.
  • Compared the performance of Al-based and non-Al anode materials and their AEI behaviors.

Conclusions:

  • AEI optimization is essential for advancing AAIB technology.
  • Synergistic strategies involving anode materials and electrolytes are crucial for high-performance AAIBs.
  • Further research into multidimensional development pathways for anodes and AEIs is needed.