Researchers announce the development of flexible, stretchable lithium-ion batteries

Flexible, stretchable lithium-ion batteries are currently under development.

42 seconds read time

We've been hearing about flexible smartphones and displays, but before we can even imagine them in the consumer space, we need batteries to be flexible and stretchable. Well, it looks like that wait might be getting closer to an end, with researchers announcing the development of such a technology.

Researchers announce the development of flexible, stretchable lithium-ion batteries |

Using a process called "ordered unraveling", John A. Rogers from the University of Illinois and Yonggang Huang from Northwestern University say that their battery can be stretched by up to 300% of its original size, all without losing any functionality. Energy storage islands and "serpentine" wire connections are placed in a sheet of polymer. Polymer is flexible and stretchy by default, with the overlapping wiring can be installed without being damaged.

What can we expect in terms of battery life? According to the engineers, their solution performs close to a standard lithium-ion battery of the same physical size. So we're looking at around 8-9 hours, as well as the ability to charge it wirelessly, but the current prototype they're using loses some capacity after just 20 recharges.


Anthony joined the TweakTown team in 2010 and has since reviewed 100s of graphics cards. Anthony is a long time PC enthusiast with a passion of hate for games built around consoles. FPS gaming since the pre-Quake days, where you were insulted if you used a mouse to aim, he has been addicted to gaming and hardware ever since. Working in IT retail for 10 years gave him great experience with custom-built PCs. His addiction to GPU tech is unwavering.

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