tech spotlight

joshbyard:

New Technique Harvests Electricity Generated When Two Pieces of Plastic Rub Together

Word of the day: Triboelectricity

When given an electrical load, a tiny current of electricity flows between the two materials during friction and separation. Repeating the action of grinding and separating creates an alternating current, also known as everyday electrical energy.

The possibilities for a transparent triboelectric generator seem compelling, perhaps opening the door to a future where our endless finger taps on smartphones and tablets no longer affect battery life.

“Transparent generators can be fabricated on virtually any surface,” said Wang. “This technique could be used to create very sensitive transparent sensors that would not require power from a device’s battery.”

Another example of using the generator includes a shoe-based application that creates a current while walking. In addition, long-term use of the triboelectric power source appears quite promising, proving capable of providing power after days of use, and surpassing 100,000 cycles of testing

(via Need power? Rub some plastic together | Cutting Edge - CNET News)

(via emergentfutures)

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   Thats interesting, it seems to have an advantage against piezo ceramics… joshbyard:

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    Energia elétrica na sola do seu sapato, cientistas criaram uma forma de gerar energia elétrica apenas esfregando dois...

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34. This was featured in #Tech
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    Makin moves for energy.

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