Stretchable, Foldable Lithium-Ion Battery Can Be Charged Wirelessly

By Binu Paul email: | Feb 28, 2013 12:13 PM EST

Share This Story

  • Print
  • Email

The advent of flexible batteries on Smartphones and smartwatches is one step closer now as researchers have developed a flexible, foldable and stretchable lithium-ion battery.

At a time when wearable technology is the core focus of tech companies around the world and bendable displays are almost making it to electronic devices, this discovery will chip away at the disadvantage of being hooked up to a rigid battery.

Follow us

The project was led by Northwestern University's Yonggang Huang and the University of Illinois' John A. Rogers, who created a rechargeable battery that can stretch, twist and bend and return to normal shape.

According to the scientists, the battery can be stretched up to 300 percent of its original size without losing functionality. The engineers claim the battery can last up to eight or nine hours and can be recharged wirelessly.

The current prototype can continuously power an LED bulb for up to eight hours per charge and it can last up to 20 recharging cycles with little loss in capacity.

The researchers published the paper titled "Stretchable batteries with self-similar serpentine interconnects and integrated wireless recharging systems" in the journal, Nature Communications.

Gizmag's Ben Coxworth explains the science behind the groundbreaking discovery:   

"The battery consists of 100 small, rigid electrode disks arranged in a square array, embedded within a sheet of stretchy silicone elastomer. Those electrodes are interconnected in parallel using metal wires that are each laid out like a flat spring, in the shape of a single squashed letter S. Within each of those single S's, however, the wires in turn take the form of multiple smaller S's joined end-to-end. Just picture a telephone cord arranged in an S shape, and you start to get the idea - the shape acts as a spring, but so does the cord from which it's made.

When the silicone sheet is stretched and the distance between the electrodes increases, the connecting wires uncurl to bridge the gaps. The single larger S of each wire first straightens out, followed by the smaller S's within it. All told, the battery can be stretched by up to 300 percent of its original size, while remaining functional. It also stands up well to repeated folding and twisting."

Check out the video uploaded in the Northwestern University Web Site explaining the invention:

Get the Most Popular Mobile&Apps Stories in a Weekly Newsletter

Stretchable battery, flexible battery, Lithium ion battery

Join Our Conversation

The HTC logo is seen with different devices from the brand HTC M10 Perfume Launching A Month Later After MWC 2016
Lava Unleashes New P7 Device Into The Indian Market
New Disney Phone Coming To Japan
Xiaomi Locks Redmi Note 3, Mi 4c And Mi Note Pro; Others To Follow Suit?
Tablet / Laptop / PC
Dell Venue 7 and Venue 8 Dell unveils Venue 7 and Venue 8 Android 4.3 Jelly Bean tablets
Retina iPad Mini facing delays, may not launch until early next year
Refurbished 128GB iPad with Retina Display now available on the Apple Online Store
Samsung Galaxy Note 10.1 – 2014 Edition: Pricing and availability now official
Amazon Logo Amazon reportedly to launch ‘Firetube’ set-top box before 2013 holidays
Samsung Galaxy Note 3 and Galaxy Gear India launch: Pricing and availability
Samsung Galaxy Gear Android smartwatch now up for pre-order in Canada
Samsung Galaxy Gear 2 reportedly in the works already, may debut at CES or MWC 2014
OS / Software
HTC Logo HTC reportedly considering Android/Windows Phone dual-booting smartphone as Microsoft pushes for deeper Windows mobile integration
iOS 7 Chrome Incognito mode leaks private searches due to bug
Sprint HTC One Android 4.3 Jelly Bean already rolling out, AT&T, T-Mobile & Verizon to follow
Microsoft Windows 8.1 now available for pre-order
Internet / Social Media
Google Downtime Google blacks out for two minutes, causes 40 percent drop in world’s Internet traffic
Xbox Music web player is live and ready for Xbox Music Pass subscribers
Facebook Android app collected phone numbers even if users never logged in
Firefox 22 brings support for web video calls, 3D gaming, and Unreal Engine 3
What's App
ZTE's new lease program ZTE’s new Lease-to-own Program for Mobile Devices
LG’s G Pay to Take on Google, Samsung and Apple
Facebook: Taxes in the UK and a new Shopping tab
Samsung’s VR Headset to be Released at $99, Hulu Jumps Onboard with Apps Ready

Most Popular

© 2016 IBT Media Inc. All Rights Reserved.mobilenapps