Electrochemically Powered, Energy‐Conserving Carbon Nanotube Artificial Muscles
| Autor: | Jae Ah Lee, Xavier Lepró, Keon Jung Kim, Na Li, Ray H. Baughman, Carter S. Haines, Raquel Ovalle-Robles, Seon Jeong Kim |
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| Rok vydání: | 2017 |
| Předmět: |
Materials science
Short cycle 02 engineering and technology Electrolyte Carbon nanotube 010402 general chemistry 01 natural sciences law.invention law Tensile Strength Ultimate tensile strength General Materials Science Composite material Carbon nanotube yarn Nanotubes Carbon Muscles Mechanical Engineering Energy conversion efficiency Electrochemical Techniques Robotics 021001 nanoscience & nanotechnology 0104 chemical sciences Mechanics of Materials Artificial muscle 0210 nano-technology Muscle Contraction |
| Zdroj: | Advanced Materials. 29:1700870 |
| ISSN: | 1521-4095 0935-9648 |
| DOI: | 10.1002/adma.201700870 |
| Popis: | While artificial muscle yarns and fibers are potentially important for many applications, the combination of large strokes, high gravimetric work capacities, short cycle times, and high efficiencies are not realized for these fibers. This paper demonstrates here electrochemically powered carbon nanotube yarn muscles that provide tensile contraction as high as 16.5%, which is 12.7 times higher than previously obtained. These electrochemical muscles can deliver a contractile energy conversion efficiency of 5.4%, which is 4.1 times higher than reported for any organic-material-based artificial muscle. All-solid-state parallel muscles and braided muscles, which do not require a liquid electrolyte, provide tensile contractions of 11.6% and 5%, respectively. These artificial muscles might eventually be deployed for a host of applications, from robotics to perhaps even implantable medical devices. |
| Databáze: | OpenAIRE |
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