Cotton t-shirts could soon charge electronic gadgetsJul 1, 3:28 pm
Washington, July 1 (ANI): Mechanical engineers are working on how to turn the material in a cotton T-shirt into a source of electrical power.Xiaodong Li, from the University of South Carolina, envisions integration of the cell phone and just about every electronic gadget into our lives.In fact, Li sees a future where electronics are part of our wardrobe."We wear fabric every day," Li said."One day our cotton T-shirts could have more functions; for example, a flexible energy storage device that could charge your cell phone or your iPad," he said.Starting with a T-shirt from a local discount store, Li's team soaked it in a solution of fluoride, dried it and baked it at high temperature. They excluded oxygen in the oven to prevent the material from charring or simply combusting.The surfaces of the resulting fibres in the fabric were shown by infrared spectroscopy to have been converted from cellulose to activated carbon. Yet the material retained flexibility and could be folded without breaking."We will soon see roll-up cell phones and laptop computers on the market," Li said. But a flexible energy storage device is needed to make this possible," he said.The once-cotton T-shirt proved to be a repository for electricity. By using small swatches of the fabric as an electrode, the researchers showed that the flexible material, which Li's team terms activated carbon textile, acts as a capacitor. Capacitors are components of nearly every electronic device on the market, and they have the ability to store electrical charge.Moreover, Li reports that activated carbon textile acts like double-layer capacitors, which are also called a supercapacitors because they can have particularly high energy storage densities.But Li and Bao took the material even further than that. They then coated the individual fibres in the activated carbon textile with "nanoflowers" of manganese oxide. Just a nanometer thick, this layer of manganese oxide greatly enhanced the electrode performance of the fabric. "This created a stable, high-performing supercapacitor," Li said.This hybrid fabric, in which the activated carbon textile fibres are coated with nanostructured manganese oxide, improved the energy storage capability beyond the activated carbon textile alone. The hybrid supercapacitors were resilient even after thousands of charge-discharge cycles, performance didn't diminish more than 5 percent."By stacking these supercapacitors up, we should be able to charge portable electronic devices such as cell phones," Li added.The study has been published in the journal Advanced Materials. (ANI)
Turning off technology hours before bedtime promotes sound sleep May 24, 3:53 pm
New York, May 24 (ANI): Using your tablet or smartphone before bed can suppress quality sleep, thus putting you at risk for health problems, a new study suggests.Full Story »
Now, a radio that can change scripts depending on where you are May 24, 3:46 pm
London, May 24 (ANI): A concept device has been created by BBC where the script can get altered depending on factors like weather.Full Story »
Google to add Galapagos Islands to Street View May 24, 3:29 pm
Washington, May 24 (ANI): Google has gathered images of the beauty and biological diversity of the Galapagos Islands for use on its Street View.Full Story »
Information security firm and Manipal come together to bolster India's e-defence May 24, 1:37 pm
New Delhi, May 24 (ANI): In today's networked world, to bolster India's e-defence, a leading information technology firm has tied up with one of the leading universities of India to train young minds about different kinds of security solutions, and strengthen the nation in a different manner.Full Story »
- Google boss warns students against 'censorship of net' and 'digital ethnic cleansing'
- 3D printed object created using brain waves
- Flexible solar cells and displays may be possible with transparent electrode
- US officials say hypersonic weapons likely to hit battlefield by 2025
- Samsung creates furore after portraying men as 'stupid, dirty slobs'
- Majority of teenagers now flocking to Twitter as Facebook enthusiasm wanes: Study
- Baby's life saved with new 3-D printed device that restored his breathing
- Twitter beefs up security following recent hacking spate
- Facebook to revise violent content 'at all levels'
- New antivirus, desktop security software to check future cyber attacks
TOP VIDEO STORIES