Skip to main content

Incredible battery uses light to charge itself, but without solar panels

light assisted battery charges itself news morning sun
Warren Goldswain/Shutterstock
Scientists are working on a battery that may recharge itself, without any input from you at all. While it sounds unbelievable, it actually uses an established technology we’re all likely familiar with, just in a very new way. The battery is solar, but rather than incorporate solar panels onto the battery or the device it powers, researchers are combining dye-sythensized molecular solar cells with the lithium-ion material inside the battery itself, creating something they’re calling, “light assisted battery charging.”

The work has been carried out by researchers at the McGill University in Montreal, along with Canadian energy company Hydro-Quebec, and the study has been published by Nature Communications. However, the research is still at a very early stage, and the paper is extremely technical. The experiments have been carried out in a lab, with the goal of creating a, “hybrid solar battery system,” with the potential to power small devices including mobile phones in the future, according to study leader Andrea Paolella.

If you’re wondering how the battery works, the answer isn’t very straightforward. The researchers haven’t been carrying a hybrid battery around with them, and the experiments have been performed in a controlled lab using the chemicals and materials that make up a battery cell. Even the sunlight was generated using a specially calibrated solar simulator machine, rather than the actual sun itself. However, because the tests have shown the solar cells can produce energy, the scientists can move on to the next stage and explore anode technology for use in the battery.

That’s not all, as at the same time, someone needs to come up with a way to wrap the battery and the device in a material that still lets sufficient light in to charge it up. Taking the battery out and leaving it on the windowsill would defeat the object, after all. The team is positive (if you’ll forgive the pun) about the future, but says we’re still years away from a self-charging lithium-ion battery, even if the next stages are successfully completed.

Editors' Recommendations

Andy Boxall
Andy is a Senior Writer at Digital Trends, where he concentrates on mobile technology, a subject he has written about for…
Apple prepping big move with its Vision Pro headset
The front visor of the Vision Pro on display at an Apple Store.

Since Apple launched the Vision Pro headset in February, the device has only been on sale in the U.S. But that looks set to change soon. The tech giant is now training staff from overseas Apple Stores on how to present the mixed-reality Vision Pro headset to customers, according to prominent Apple tipster Mark Gurman.

In a report on Bloomberg on Monday, Gurman claimed that “in recent days” Apple has started to hold training sessions at its headquarters in Cupertino, California, for “hundreds” of workers from its internationals retail stores. The training sessions reportedly lasts for up to four days, and give Apple Store staff an overview of the company's most important device in years and tips on how to show it off to customers, especially during the all-important one-to-one demonstration sessions.

Read more
iPhone 16: news, rumored price, release date, and more
A person holding the Apple iPhone 15 Plus and Apple iPhone 15 Pro Max.

Apple iPhone 15 Pro Max Andy Boxall / Digital Trends

We're more than six months removed from the launch of the iPhone 15 and iPhone 15 Pro, so you know what that means: iPhone 16 rumors are in full force. Talk is heating up about everything from design leaks and rumored specs to camera changes and more.

Read more
How to play YouTube in the background on iPhone and Android
YouTube Premium on iPhone.

You can play YouTube videos in the background on Android and iPhone devices very easily if you're a YouTube Premium subscriber. Just start playing a video, turn off the screen or navigate away and it'll continue playing, no trouble. But playing videos in the background is also doable even without a premium subscription. You can use picture in picture, or a specific browser.

This makes YouTube a great rival for some of the best podcast apps on iOS and on Android. Here's how to get YouTube playing in the background on your phone, whatever device you have.

Read more