Related Experiment Video
Updated: May 8, 2025
14:42
Fabrication of Carbon-Based Ionic Electromechanically Active Soft Actuators
Published on: April 25, 2020
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Optimization of Core-Shell Ternary Electrodes for High-Performance Ionic Actuator in Soft Gripper
Yufei Zhang1,2, Adit Gupta1, Qiuchun Lu1
1School of Materials Science and Engineering, Nanyang Technological University, 50, Nanyang Avenue, Singapore, 639798, Singapore.
Advanced Materials (Deerfield Beach, Fla.)
|May 7, 2025
Summary
This study optimized a novel ternary electrode for ionic actuators, achieving high conductivity and performance. The enhanced actuator design enables precise grasping and complex deformations for robotics and human-machine interaction.
Area of Science:
- Materials Science
- Nanotechnology
- Robotics
Background:
- Ionic actuators offer low-voltage operation and high stability.
- Conventional electrode preparation methods hinder nanomaterial dispersion and synergistic effects.
Purpose of the Study:
- To optimize a ternary electrode system for enhanced ionic actuator performance.
- To investigate the ion migration process and core-shell structure for improved actuator capabilities.
Main Methods:
- Developed a two-step dispersion process for a SWCNTs/PEDOT:PSS/ionic liquid ternary electrode.
- Analyzed ion migration using a core-shell model.
- Optimized electrode and device structure for ionic actuators.
Main Results:
- Achieved a uniformly coated core-shell structure with high conductivity (≈392.4 S cm-1).
- Realized a peak-to-peak strain per volt of 1.3% V-1 and normalized blocking force of 0.15 MPa V-1.
- Demonstrated stable performance over 1 million cycles.
Conclusions:
- The optimized ternary electrode significantly enhances ionic actuator performance.
- The developed actuators are suitable for multi-clawed grippers and precision component handling.
- Promising applications exist in smart grippers, bioinspired robotics, and human-machine interaction.
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