An all-solid-state yarn supercapacitor using cotton yarn electrodes coated with polypyrrole nanotubes
Chengzhuo Wei1, Qi Xu1, Zeqi Chen1
1College of Materials Science & Engineering, State Key Laboratory Cultivation Base for New Textile Materials & Advanced Processing Technology, Wuhan Textile University, 430200, Wuhan, China.
Carbohydrate Polymers
|May 16, 2017
Summary
Researchers developed a flexible yarn supercapacitor (YSC) using polypyrrole (PPy) nanotubes on cotton. This wearable power source offers high capacitance and energy density for electronic textiles.
Area of Science:
- Materials Science
- Electrochemistry
- Energy Storage
Background:
- Flexible energy storage is crucial for wearable electronics.
- Developing efficient and durable supercapacitors is an ongoing challenge.
- All-solid-state devices offer enhanced safety and flexibility.
Purpose of the Study:
- To fabricate a novel all-solid-state yarn supercapacitor (YSC).
- To utilize polypyrrole (PPy) nanotubes coated on cotton yarns for enhanced electrochemical performance.
- To evaluate the YSC's potential as a flexible power source for electronic textiles.
Main Methods:
- Cotton yarns were coated with polypyrrole (PPy) nanotubes.
- An interconnected network structure of PPy was formed.
- Electrochemical performance, including areal-specific capacitance and energy density, was measured.
- The flexibility and suitability for wearable applications were assessed.
Main Results:
- A high areal-specific capacitance of 74.0 mFcm-2 was achieved.
- A desirable energy density of 7.5 μWhcm-2 was obtained.
- The fabricated YSC exhibited excellent flexibility.
Conclusions:
- The PPy nanotube network enhances surface area and electrode/electrolyte interface, improving performance.
- The flexible YSC is suitable for integration into wearable electronic textiles.
- This work presents a promising approach for flexible energy storage solutions.
