中国

India develops wearable and washable supercapacitors

Xinhua News Agency, New Delhi, May 31 – Indian researchers have recently developed a small, wearable supercapacitor that can be used on clothing to provide power to small electronic devices and to withstand bending and washing.

Researchers at the Indian Institute of Technology recently published a paper in the American journal Applied Materials and Interfaces, saying that they evenly coated carbon nanotubes on cotton yarn to turn the otherwise insulated cotton yarn into a conductor. They also used polyvinyl alcohol and potassium hydroxide. The material is made into a solid electrolyte membrane that is only 150 microns thick, and then these items are used to make tiny supercapacitors. According to reports, hundreds of such supercapacitors can be accommodated in a 1 cm square area.

Supercapacitor is a new type of energy storage device that has the characteristics of fast charge and discharge as a capacitor, and can store energy for a long time like a battery.

According to reports, the supercapacitor developed this time can be sewn on the clothes to supply power to the wearable device. Depending on the application and quantity, it can provide different power from microwatts to milliwatts, and can power devices such as GPS positioning transmitters and LEDs.

Researchers say the supercapacitor can withstand harsh environmental challenges. In the test, it can be repeatedly bent, can be washed in the washing machine with hot water and detergent, and even with a hammer hit, the performance is not affected.


Post time: Jun-14-2019
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