technology-news

Solar-powered batteries woven into fabric can usher in era of wearable electronics

Washington, Nov 21 : Researchers have developed more convenient solar power batteries, which can be woven into clothing fibbers or incorporated into watchbands.


Taek-Soo Kim, Jung-Yong Lee, Jang Wook Choi and colleagues explained that electronic textiles have the potential to integrate smartphone functions into clothes, eyeglasses, watches and materials worn on the skin.

Possibilities range from the practical- for example, allowing athletes to monitor vital signs- to the aesthetic, such as lighting up patterns on clothing. The bottleneck slowing progress toward development of a wider range of flexible e-fabrics and materials is the battery technology required to power them.

To unlink smart technology from the wall socket, the team had to rethink what materials are best suited for use in a flexible, rechargeable battery that's also inexpensive.

They tested unconventional materials and found that they could coat polyester yarn with nickel and then carbon, and use polyurethane as a binder and separator to produce a flexible battery that kept working, even after being folded and unfolded many times.

They also integrated lightweight solar cells to recharge the battery without disassembling it from clothing or requiring the wearer to plug in.

The study is published in the ACS journal Nano Letters.

--ANI (Posted on 21-11-2013)

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