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Fabrication Process of Silicone-based Dielectric Elastomer Actuators

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A Dynamically Stabilizing, All-Soft and Highly Stretchable Liquid Metal-Based Power Device.

Richard Fuchs¹, Shi-Yang Tang², Lucy Johnston¹

¹School of Chemical Engineering, University of New South Wales (UNSW), Kensington, NSW, 2052, Australia.

Small (Weinheim an Der Bergstrasse, Germany)

|October 3, 2025

Summary

This summary is machine-generated.

Researchers developed a highly stretchable, all-soft power device using liquid metal and hydrogel electrolytes. This breakthrough overcomes mechanical limitations, enabling stable power for soft electronics under extreme deformation.

Keywords:

all‐soft power device bio‐inspired design liquid metal stretchable electronics

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Area of Science:

Materials Science
Electrical Engineering
Electrochemical Engineering

Background:

Soft electronics require flexible power sources, but current designs have limited stretchability.
Existing soft power devices face challenges with mechanical mismatch and performance degradation under strain.

Purpose of the Study:

To design and demonstrate a highly stretchable, all-soft power device for soft electronics.
To overcome the limitations of current soft power sources in terms of stretchability and mechanical robustness.

Main Methods:

Constructed individual electrochemical cells using liquid metal, hydrogel electrolyte, silver grease, and elastomeric encapsulation.
Integrated cells in series and parallel configurations for scalable power output.
Utilized an all-soft design to minimize mechanical mismatch during large deformations.

Main Results:

The all-soft power device achieved over 350% strain capability while maintaining stability and output performance.
The device demonstrated dynamic mechanical robustness and electrical output stability under bending, twisting, and stretching.
Liquid metal surface recovery from oxidation enhanced output performance during mechanical deformation.

Conclusions:

The developed liquid metal-based power device significantly extends the stretchability of soft power sources.
The all-soft, scalable design offers a promising solution for powering soft electronics and wearable devices.
This work paves the way for advanced, highly deformable electronic systems.