Latest in Science

Image credit:

Light-based battery makes its own power

60 Shares
Share
Tweet
Share
Save

Sponsored Links

Sure, you can make solar-powered devices that store their excess energy in a battery, but what about the battery itself? Unfortunately, it's still behind the times -- the lithium-ion cells you see today have to be connected to another device to charge, and they're occasionally very dangerous thanks to their chemical makeup. A team of Indian researchers may have just licked those problems, though. They've developed a battery whose titanium nitrate anode (where current flows into the device) is driven by light, both natural and artificial. In a well-lit area, a prototype can recharge itself without using either an external source or unstable chemicals.

The existing technology isn't ready for prime time yet. While it tops up in 30 seconds, it's barely powerful enough to run an LED light or a small fan, let alone your phone. If the technology improves, however, you could see more gadgets that not only don't have to be plugged in, but won't ignite if you drop them a certain way.

Source: ACS
In this article: battery, energy, iiser, light, power, science, video
All products recommended by Engadget are selected by our editorial team, independent of our parent company. Some of our stories include affiliate links. If you buy something through one of these links, we may earn an affiliate commission.
Comment
Comments
Share
60 Shares
Share
Tweet
Share
Save

Popular on Engadget

The best mobile devices for students

The best mobile devices for students

View
Sega is becoming its weird and wonderful self again

Sega is becoming its weird and wonderful self again

View
Riot Games settles class action lawsuit over sexist culture

Riot Games settles class action lawsuit over sexist culture

View
The best external graphics card enclosure

The best external graphics card enclosure

View
Americans are waiting three years to replace their phones, study finds

Americans are waiting three years to replace their phones, study finds

View

From around the web

Page 1Page 1ear iconeye iconFill 23text filevr