Stretchable Silver Nanocomposite for Energy Storage Smart Textile
| Autor: | Chi-Wei Lee, 李啟維 |
|---|---|
| Rok vydání: | 2018 |
| Druh dokumentu: | 學位論文 ; thesis |
| Popis: | 106 In recent years, stretchable supercapacitor with long cycle live, low cost, environment-friendly and safety have been considered as a promising energy storage devices for smart clothes. Herein, we demonstrate a highly stretchable energy storage textile with high specific capacitance and excellent stretchability by combining electroactive polyaniline, electrospinning fibers and silver nanomaterials. Electrospun fiber and nanowires have large surface area which can significantly increase the contact area between polyaniline and electrolyte, thus leading to the increase of the storage capacity of supercapacitors. The capacitance of stretchable silver nanocomposite electrodes the can achieved 319.52 F/g, and the capacitance can hold 99% even with a 100% strain. After stretched 500 cycle times at 20% and 50% strain, the capacitance change is negligible. Compare with the silver nanoparticles electrode which only remains 50% capacitance at 100% strain, stretchable silver nanocomposite electrode have much better stretchability and stability at high strain. Additionally, we combined this supercapacitor textile with ion liquid electrolyte to prepare solid-state supercapacitor textiles. This stretchable film supercapacitor textiles have a high specific surface capacitance of 182.02 mF/cm2. Surprisingly, the capacitance increased to 158.07% when stretching to 100% of original length. Moreover, the devices have been evaluated under different environmental conditions for weather resistance testing. First, the supercapacitor encapsulated with PDMS can work in the water, indicating great water resistance. Sequentially, the devices were tested from 0 to 70 degree celsius, and showed reasonable performance in the temperature range. In series with several stretchable supercapacitor components, the output voltage of the supercapacitor textiles can achieved 4.5 V, which is sufficient to drive the LED components. This work demonstrate water-resistant stretchable supercapacitor textiles with high performance, which is potentially applicable for the next-generation smart textiles. |
| Databáze: | Networked Digital Library of Theses & Dissertations |
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