Methods for Rational Design of Advanced Zn-Based Batteries

Area of Science:

• Electrochemistry
• Materials Science
• Energy Storage

Background:

• Rechargeable aqueous zinc-based batteries (AZBs) are attractive for large-scale energy storage due to their safety, low cost, and resource abundance.
• Key challenges limiting AZB application include insufficient energy density and poor electrochemical stability.
• Energy density in AZBs is primarily dictated by cathode material choice and anode stability, particularly concerning zinc dendrite growth.

Purpose of the Study:

• To comprehensively review rational design strategies for optimizing cathode and anode materials in AZBs.
• To discuss classic examples and advancements in cathode and anode design for improved AZB performance.
• To present current issues and future outlook for developing high-performance AZBs.

Main Methods:

• Literature review and synthesis of research on AZB cathode materials.
• Analysis of strategies for improving zinc anode stability and performance.
• Examination of device architecture modifications for enhanced AZB functionality.

Main Results:

• Cathode material innovation is crucial for increasing AZB energy density.
• Effective strategies exist for mitigating zinc dendrite growth and improving anode stability.
• Optimizing cathode, anode, and overall device architecture are essential for high-performance AZBs.

Conclusions:

• Significant progress has been made in designing advanced cathode and anode materials for AZBs.
• Further research is needed to address remaining challenges in energy density and long-term stability.
• Rational design approaches offer a clear path towards realizing the potential of AZBs for grid-scale energy storage.