Breakthrough in Sodium-ion Supercapacitor Technology Announced

Strategic Insights -

Researchers at Sharif University of Technology in Iran have made a groundbreaking discovery in the field of sodium-ion supercapacitor technology, paving the way for the development of affordable, high-performance power sources for wearable electronics. This innovative technology utilizes a novel ternary composite of delta-manganese dioxide (MnO2) pompom-like nanoworm clusters/Copper-Cobalt Hexacyanoferrate (CuCoH) nanocubes/reduced graphene oxide (RGO) on activated carbon fiber felt (ACF) as both positive and negative electrodes. The researchers have successfully engineered a flexible all-solid-state symmetric supercapacitor (FASS) that exhibits exceptional performance, with a wide Na-ion intercalation/de-intercalation potential window, high specific capacity, and excellent rate performance.

Key Takeaways:

  • The researchers have developed a novel ternary composite of MnO2 pompom-like nanoworm clusters/CuCoH nanocubes/RGO on ACF as both positive and negative electrodes.
  • The composite exhibits a wide Na-ion intercalation/de-intercalation potential window of -0.7 to 1.4 V, high specific capacity (STY) of 1915 C g-1 at a sweeping speed of 5 mV s-1, and excellent rate performance.
  • The FASS device has a superior cyclic lifespan, retaining 92.7 % of its capacitance after 5000 charge-discharge cycles, and exceptional energy storage functionality during recurrent mechanical flexing.
  • The cost-effective and environmentally safe electrode and electrolyte materials used in this technology pave the way for large-scale production of high-performance FASS.
  • The research has been peer-reviewed and published in the Chemical Engineering Journal (Elsevier Science Sa, 2025).
  • The findings have been reported in a news article published in Elettronics Newsweekly (NewsRx LLC, 2025), citing the research paper "Towards Cost-effective, High-voltage Sodium-ion Flexible Symmetric Supercapacitors: Textile-based Intercalative D-mno2/copper-cobalt Hexacyanoferrate/rgo Electrode".

Statistics:

  • The Na-ion intercalation/de-intercalation potential window of the composite is -0.7 to 1.4 V.
  • The specific capacity (STY) of the composite is 1915 C g-1 at a sweeping speed of 5 mV s-1.
  • The FASS device retains 92.7 % of its capacitance after 5000 charge-discharge cycles.
  • The specific energy (S.E) of the device is 81.7 Wh kg-1.
  • The cyclic lifespan of the device is 5000 charge-discharge cycles.

Sources:

  • NewsRx LLC. Findings on Electronics Reported by Investigators at Sharif University of Technology (Towards Cost-effective, High-voltage Sodium-ion Flexible Symmetric Supercapacitors: Textile-based Intercalative D-mno2/copper-cobalt Hexacyanoferrate/rgo ...). Electronics Newsweekly. June 17, 2025; p 1189.
  • Elsevier Science Sa. Towards Cost-effective, High-voltage Sodium-ion Flexible Symmetric Supercapacitors: Textile-based Intercalative D-mno2/copper-cobalt Hexacyanoferrate/rgo Electrode. Chemical Engineering Journal, 2025;514.