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Related Experiment Video

Updated: Sep 6, 2025

Synthesizing a Gel Polymer Electrolyte for Supercapacitors, Assembling a Supercapacitor Using a Coin Cell, and Measuring Gel Electrolyte Performance
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Self-Healing and Shape-Editable Wearable Supercapacitors Based on Highly Stretchable Hydrogel Electrolytes.

Yizhou Zhao1,2, Quanduo Liang2,3, Samuel M Mugo4

  • 1State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, P. R. China.

Advanced Science (Weinheim, Baden-Wurttemberg, Germany)
|June 27, 2022
PubMed
Summary

Researchers developed shape-editable, self-healing wearable supercapacitors with long-term durability. These flexible devices utilize unique hydrogel electrolytes, maintaining performance after repeated shaping and thousands of charge cycles.

Keywords:
capacitance retention ratehydrogel electrolyteslong-term cycling durabilityshape editabilitywearable supercapacitors

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Area of Science:

  • Materials Science
  • Electrochemistry
  • Wearable Electronics

Background:

  • Wearable supercapacitors require shape editability, self-healing, and durability.
  • Current designs often lack flexibility and shape adaptability.

Purpose of the Study:

  • To create wearable supercapacitors with enhanced shape editability, self-healing, and cycling durability.
  • To investigate hydrogel electrolytes with unique cross-linking structures for improved stability.

Main Methods:

  • Fabrication of supercapacitors by sandwiching hydrogel electrolytes between electrodes.
  • Utilizing hydrogel electrolytes with dynamic crosslinking sites (quadruple H bonds and hydrophobic association).
  • Testing shape editability, self-healing capabilities, and long-term cycling durability.

Main Results:

  • Supercapacitors demonstrated repeated shape editability without capacitance loss.
  • Achieved 99.6% and 95.8% capacitance retention after 5,000 and 10,000 cycles, respectively.
  • Showcased 95% capacitance retention after five cutting/self-healing cycles.

Conclusions:

  • The developed hydrogel electrolytes significantly enhance supercapacitor durability and stability.
  • The fabricated wearable supercapacitors offer a promising solution for flexible energy storage.
  • Demonstrated practical application by powering electronic devices like LEDs and watches.