Soft electro-ionic artificial muscles based on 3D-networked metal sulfide-graphene electrodes

Jaehwan Kim

doi:10.1117/12.3010431

10 May 2024 Soft electro-ionic artificial muscles based on 3D-networked metal sulfide-graphene electrodes

Jaehwan Kim

Proceedings Volume PC12948, Soft Mechatronics and Wearable Systems; PC129480F (2024) https://doi.org/10.1117/12.3010431
Event: SPIE Smart Structures + Nondestructive Evaluation, 2024, Long Beach, California, United States

Abstract

Bio-inspired electro-ionic artificial muscles are considered suitable for biomimetic soft robotic applications. However, their slow response time, low blocking force, and limited durability have prevented their application in soft robotics. Here, we report soft electro-ionic artificial muscles based on 3D dendritic nickel cobalt sulfide nanorods grown on graphene electrodes. Importantly, both the phase transition from nickel-cobalt oxide to nickel-cobalt sulfide and the use of a graphene template influence the tuning of the electrical and electrochemical properties of the composite electrodes. The ionic artificial muscles with the electrodes exhibit significantly improved bending displacement and durable response to both AC and DC input signals without phase delay or distortion. These significant enhancements in the performance of artificial muscles have allowed us to demonstrate bioinspired soft locomotive robots. Therefore, these artificial muscles have the potential to expand the soft electronics industry in next-generation human-machine interfaces

Conference Presentation

Citation Download Citation

Jaehwan Kim "Soft electro-ionic artificial muscles based on 3D-networked metal sulfide-graphene electrodes", Proc. SPIE PC12948, Soft Mechatronics and Wearable Systems, PC129480F (10 May 2024); https://doi.org/10.1117/12.3010431

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KEYWORDS

Artificial muscles

Electrodes

Metals

Graphene

Nickel

Organisms

Robotics

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