MATERIALS AND METHODS OF MANUFACTURING FLUID RESISTANT, BREATHABLE, AND ANTIBACTERIAL TRIBOELECTRIC NANOGENERATORS AND ELECTRONIC TEXTILES

Smart overview of the Invention

The patent application describes triboelectric nanogenerators (TENGs) integrated into textiles, designed to convert biomechanical energy from a wearer into electrical energy. These textiles utilize embroidery techniques, silanizing agents, and conductive nanoparticles to create a stable and efficient power source. The invention addresses the need for self-powered garments and wearables that are fluid-resistant, breathable, and antibacterial, enhancing the functionality and comfort of electronic textiles.

Background

As electronic systems become miniaturized for wearable devices, energy consumption in electronic textiles has increased, traditionally relying on batteries. These batteries can be uncomfortable and require frequent recharging. Alternative energy harvesting methods like solar and thermoelectric technologies face limitations due to environmental factors and material challenges. The development of TENGs offers a promising solution by harvesting ambient mechanical energy through triboelectrification and electrostatic induction, providing a reliable power source for low-powered electronics.

Technical Details

The TENGs consist of a first electrode layer with conductive nanoparticles on a silanized textile substrate and a second layer with an electronegative coating. The design allows for electrical charging through friction between these layers or within the fibers themselves. The nanogenerators can be incorporated into garments, powering electronic devices like human-machine interfaces (HMIs). The use of embroidery techniques enables the integration of TENGs into textiles while maintaining flexibility and breathability.

Manufacturing Approach

The manufacturing process involves arranging conductive nanoparticles on silanized surfaces using organosilane molecules such as fluoroalkylated organosilane. The nanoparticles form monolayers that are essential for efficient energy conversion. Embroidery patches are used as components to couple the electrode layers, ensuring durability and stability under mechanical stress. This approach allows for scalable production of electronic textiles that are comfortable and functional.

Applications

Electronic textiles incorporating these TENGs can be used in various applications, including clothing that powers wearable electronics or serves as self-powered biosensors. The garments can be designed to maximize interaction with the wearer's movements, enhancing the efficiency of energy conversion. Additionally, the antibacterial properties address hygiene concerns, making these textiles suitable for prolonged use in diverse environments.