Sodium Ion Organic Cathode Materials

Sodium ion organic cathode materials are emerging as sustainable alternatives free from critical minerals, offering structural tunability and flexibility.

  • TAQ: Bis-tetraaminobenzoquinone is a layered organic solid that is highly conductive and insoluble in electrolytes, offering high energy and power density comparable to traditional lithium-ion cathodes.
  • Conjugated Systems:
    • SSDC: Sodium 4,4′-stilbene-dicarboxylate.
    • HAT-CN: 1,4,5,8,9,11-Hexaazatriphenylenehexacarbonitrile.
    • Na2C6O6: Disodium rhodizonate.
  • Polymers: Such as poly(pentacenetetrone sulfide) (PPTS).
  • Frameworks: Covalent Organic Frameworks (COFs) and Metal-Organic Frameworks (MOFs) tailored for sodium storage

References

  1. Qi, Y., Zhao, H., & Lei, Y. (2025). Organic molecular design for high-power density sodium-ion batteries. Chemical Communications, 61, 2375-2386.

See also

Sodium Ion Cathodes, Layered Transition Metal Oxides, Polyanionic Compounds, Prussian Blue Analogues