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With the popularity of wearable devices, we have previously seen portable charging solutions such as jackets equipped with solar panels and shoes that collect kinetic energy, and recently led by Sang-Woo Kim, a materials scientist at Sungkyunkwan University in Korea. The dynamic charging device comes on the arm and it naturally generates and stores energy when it is wobbled during walking.
The material consists of a two-layer fabric, one layer of silver-plated fibers and the other layer of polydimethylsiloxane-coated zinc oxide nanorods, which will be on one end when the two layers of material are rubbed during movement. A positive charge is generated to generate a negative charge at the other end, thereby forming a loop. According to the paper's details, four square centimeters of silver plated material and polydimethylsiloxane-coated zinc oxide nanorods can produce a 120V output of 65μA, while using an uncoated zinc oxide nanopowder can produce a 30V output of 20μA, When four layers are combined together, they can produce 170V 120μA output and can be continuously cycled 12,000 times.
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