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High Energy Density, Super-Deformable, Garment-Integrated Microsupercapacitors for Powering Wearable Electronics
Lushuai Zhang1, Wesley Viola1, Trisha L Andrew1
1Departments of Chemistry and Chemical Engineering , University of Massachusetts Amherst , Amherst , Massachusetts 01003 , United States.
ACS Applied Materials & Interfaces
|October 9, 2018
Summary
Researchers developed new textile microsupercapacitors (MSCs) for wearable electronics. These flexible, sewable energy storage devices offer high performance, enabling advanced health monitors and smart garments.
Area of Science:
- Materials Science
- Energy Storage
- Textile Engineering
Background:
- Lightweight energy storage is crucial for wearable health monitors and smart garments.
- In-plane, interdigitated microsupercapacitors (MSCs) are promising for wearable electronics due to their small size.
- Integrating MSCs directly onto textiles presents challenges in creating suitable electroactive fiber electrodes.
Purpose of the Study:
- To develop a facile method for creating robust, garment-integrated microsupercapacitors.
- To demonstrate the potential of textile-based MSCs for powering wearable biosensors.
- To investigate the electrochemical performance and durability of textile MSCs.
Main Methods:
- A vapor deposition and sewing technique was employed to create textile MSCs.
- Conductive threads were coated with a p-doped conducting polymer and sewn onto a stretchy textile.
- The textile's knit structure defined the dimensions of the 3D electrodes.
Main Results:
- The textile MSCs exhibited high areal capacitance (80 mF/cm²) and energy densities (11-34 μW h/cm²).
- The devices demonstrated excellent deformability, maintaining performance after significant rolling.
- The energy densities achieved are sufficient for powering current wearable biosensors.
Conclusions:
- A novel and facile method for producing rugged, wearable textile MSCs has been established.
- These textile MSCs offer a promising solution for integrated energy storage in smart garments and wearable electronics.
- The developed technology enables the creation of pliable, high-performance energy storage systems for next-generation wearable devices.
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