A Thai–Taiwan team developed a redox-active hydrogel electrolyte containing LiClO4, DMSO, water, and K3[Fe(CN)6], paired with CNT@ZIF-derived porous carbon electrodes for micro-supercapacitors. The laboratory device achieved a 2.5 V operating window, high areal capacitance and energy, and operation at −20°C.
Key findings
- The electrolyte reached an ionic conductivity of 1.4 mS/cm and supported a 2.5 V window. The device delivered 26.04 mF/cm² at 0.2 mA/cm², an areal energy of 0.015 mWh/cm², 97.3% performance retention under the reported test conditions, and operation at −20°C.
Why this matters globally
Miniaturized electronics, sensors, and wearable systems need thin energy sources that operate across environments. This work integrates electrolyte chemistry with electrode architecture to extend voltage and areal energy performance.
Thai researcher contribution
Chulalongkorn University collaborated with Tunghai University in Taiwan on material development and device evaluation, demonstrating cross-border research in advanced energy-storage materials.
Limitations to consider
Results are from laboratory cells. The abstract does not state the cycle count associated with retention, and evidence is still needed on mass production, cost, chemical safety, disposal, mass loading, bending durability, and real-world operation.
Verify the original sources
SmallRead the original article↗DOI: 10.1002/smll.74529