Fully Printed Ultraflexible Supercapacitor Supported by a Single-Textile Substrate.

Area of Science:

• Materials Science
• Energy Storage
• Textile Engineering

Background:

• Textile-based supercapacitors are crucial for wearable electronics.
• Challenges exist in creating high-performance, fully printed, ultraflexible devices on single textiles.

Purpose of the Study:

• To develop a facile, low-cost, and textile-compatible method for fabricating all-solid-state supercapacitors on silk fabric.
• To demonstrate the potential of printed energy storage for smart textiles and flexible electronics.

Main Methods:

• Utilized screen printing and transfer printing techniques on a single silk fabric.
• Constructed all-solid-state supercapacitors integrated directly onto the textile.

Main Results:

• Achieved a high specific capacitance of 19.23 mF cm^-2 at 1 mA cm^-2.
• Demonstrated excellent cycling stability with 84% capacitance retention after 2000 cycles.
• Exhibited superior mechanical stability, maintaining performance after 100 bending and twisting cycles.

Conclusions:

• The developed printing method offers a versatile approach for creating ultraflexible, textile-based energy storage.
• The technology is compatible with textile aesthetics and suitable for smart textiles and flexible electronics.