Battery-Free Phone Draws Power From Radio Signals And The Sun

Battery-Free Phone Draws Power From Radio Signals And The Sun
Design

According to new research from the University of Washington, devices in the future may not require a charging cable

Zack Palm
  • 3 august 2017

As convenient as a smartphone seems, ensuring there’s an outlet nearby to charge it (or a portable charger) can make it cumbersome. However, new research from the University of Washington suggests that phones in the future may not require batteries. A battery-free prototype phone made by a team from the university only requires 3.5 microwatts of power to operate. The phone draws power from radio signals and residual light while it’s outside, making use of a solar cell the size of a grain of rice.

Though the team designed their prototype using off-the-shelf components, it was still able to accept and hold calls received from Skype. Future prototypes will have an e-ink display and the capacity to stream video.

Battery Free Phone

As convenient as a smartphone seems, ensuring there’s an outlet nearby to charge it (or a portable charger) can make it cumbersome. However, new research from the University of Washington suggests that phones in the future may not require batteries. A battery-free prototype phone made by a team from the university only requires 3.5 microwatts of power to operate. The phone draws power from radio signals and residual light while it’s outside, making use of a solar cell the size of a grain of rice.

+Design
+Innovation
+Market Research
+mobile
+Mobile
+smartphone
+solar power
+technology
+University of Washington
+USA

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