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Textile-Based TENG Woven with Fluorinated Polyimide Yarns for Motion and Position Monitoring
Ming Hao1,2, Xiaodong Hu3, Zhijun Chen1,2
1School of Textile Science and Engineering, State Key Laboratory of Separation Membranes and Membrane Processes, Tiangong University, Tianjin 300387, China.
ACS Applied Materials & Interfaces
|December 21, 2024
Summary
Researchers developed a new yarn for triboelectric nanogenerators (TENGs) that harvests energy in harsh conditions. This flexible, breathable yarn offers high electrical output and durability for self-powered sensors.
Area of Science:
- Materials Science
- Energy Harvesting
- Textile Engineering
Background:
- Polyimide-based triboelectric nanogenerators (TENGs) are studied for energy harvesting in harsh environments.
- Existing polyimide TENGs suffer from poor air permeability and softness.
Purpose of the Study:
- To develop a core-shell yarn with enhanced air permeability, softness, and high electrical output for TENG applications.
- To create a durable and high-performing textile-based TENG for harsh environments.
Main Methods:
- Conjugate electrospinning was used to create a core-shell yarn with FEP-doped fluorinated polyimide (FPI) as the shell and nickel-plated aramid yarn as the core.
- The yarn's hierarchical porous structure and fluorinated functional groups were leveraged for improved performance.
Main Results:
- The yarn demonstrated excellent electrical output (22.7 V per 10 cm length) and maintained 80% performance at 99% relative humidity.
- The resulting textile exhibited high-temperature resistance, antifouling, waterproof, self-cleaning properties, and stability over 10,000 cycles.
- A TENG integrated into a fire suit demonstrated potential for firefighter monitoring in extreme conditions.
Conclusions:
- The novel fluorinated polyimide yarn offers a promising solution for self-powered sensors in high-temperature and high-humidity environments.
- This technology enables reliable movement and position monitoring for firefighters, enhancing safety.
