Researchers claim to boost cell-phone battery life with radio signals

The Ohio State University researchers are working with startup Nikola Labs to commercialize the technology

Nikola Labs' concept energy-harvesting iPhone 6 case

Nikola Labs' concept energy-harvesting iPhone 6 case

Cell phones are constantly transmitting radio signals, whose energy can also be used to boost the battery life of mobile devices.

Researchers at Ohio State University have developed circuitry that converts radio signals from a handset into energy, which is then fed back to the device's battery. The researchers say the technology can increase the battery life of mobile devices by up to 30 percent.

The OSU researchers are working with startup Nikola Labs to commercialize the technology, which they say can be easily implemented in cell-phone cases, and in June will launch a Kickstarter campaign to fund its continued development.

Nikola Labs pitched the concept of an energy-harvesting iPhone 6 case based on the technology at the TechCrunch Disrupt conference earlier this month. Nikola Labs estimates the case will be priced at $99.

Limitations in batteries have sparked an interest in energy-harvesting technologies to power battery-free wearables, sensors, implants and other devices. Researchers at universities and technology companies are looking for ways to convert body heat, motion, RF signals and ambient light to energy.

The technology developed by OSU has an antenna to capture the radio signals and a rectifier to convert them from AC into DC power, which is used to recharge a battery. OSU claims the circuitry can squeeze microwatts of power out of radio signals.

The technology kicks into action when signals are transmitted from a mobile device's radio, which itself can be a battery hog because a certain amount of energy is needed to maintain a high-quality signal with a cell-phone tower. However, OSU says its technology siphons off enough power to boost battery life without hurting the quality of phone conversations or data connections.

Agam Shah covers PCs, tablets, servers, chips and semiconductors for IDG News Service. Follow Agam on Twitter at @agamsh. Agam's e-mail address is agam_shah@idg.com

Join the newsletter!

Or

Sign up to gain exclusive access to email subscriptions, event invitations, competitions, giveaways, and much more.

Membership is free, and your security and privacy remain protected. View our privacy policy before signing up.

Error: Please check your email address.

Tags smartphonesconsumer electronicsohio state universityComponentsBatteries / fuel cells

Keep up with the latest tech news, reviews and previews by subscribing to the Good Gear Guide newsletter.

Agam Shah

IDG News Service
Show Comments

Cool Tech

Toys for Boys

Family Friendly

Stocking Stuffer

SmartLens - Clip on Phone Camera Lens Set of 3

Learn more >

Christmas Gift Guide

Click for more ›

Brand Post

Most Popular Reviews

Latest Articles

Resources

PCW Evaluation Team

Aysha Strobbe

Microsoft Office 365/HP Spectre x360

Microsoft Office continues to make a student’s life that little bit easier by offering reliable, easy to use, time-saving functionality, while continuing to develop new features that further enhance what is already a formidable collection of applications

Michael Hargreaves

Microsoft Office 365/Dell XPS 15 2-in-1

I’d recommend a Dell XPS 15 2-in-1 and the new Windows 10 to anyone who needs to get serious work done (before you kick back on your couch with your favourite Netflix show.)

Maryellen Rose George

Brother PT-P750W

It’s useful for office tasks as well as pragmatic labelling of equipment and storage – just don’t get too excited and label everything in sight!

Cathy Giles

Brother MFC-L8900CDW

The Brother MFC-L8900CDW is an absolute stand out. I struggle to fault it.

Luke Hill

MSI GT75 TITAN

I need power and lots of it. As a Front End Web developer anything less just won’t cut it which is why the MSI GT75 is an outstanding laptop for me. It’s a sleek and futuristic looking, high quality, beast that has a touch of sci-fi flare about it.

Emily Tyson

MSI GE63 Raider

If you’re looking to invest in your next work horse laptop for work or home use, you can’t go wrong with the MSI GE63.

Featured Content

Product Launch Showcase

Don’t have an account? Sign up here

Don't have an account? Sign up now

Forgot password?