Isalys Consulting | A cell phone without battery
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A cell phone without battery

01 Aug A cell phone without battery

The world needs more and more energy, so how could we reduce our consumption?

Well, we already think about turn off light when you leave a room but now we could imagine using our cell phone without battery!

In fact, a crew in University of Washington developed a prototype and it works.
They eliminated a power-hungry step in modern cellular transmissions — converting analog signals that convey sound into digital data that a phone can understand.
Instead, the battery-free cellphone takes advantage of tiny vibrations in a phone’s microphone or speaker that occur when a person is talking into a phone or listening to a call.

 

Have a look on the video:

More informations on:

 

http://www.washington.edu/news/2017/07/05/first-battery-free-cell-phone-makes-calls-by-harvesting-ambient-power/

https://www.wired.com/story/this-cell-phone-can-make-calls-even-without-a-battery/

https://www.science-et-vie.com/article/ce-telephone-fonctionne-sans-batterie-9130