Flexible Electronics Could Soon Have A Flexible Energy Source

A team of researchers has developed a prototype battery that can stretch up to three times its size and can be recharged wirelessly.

What's the Latest Development?


In a paper published in this month's Nature Communications, a team of researchers from universities in the US, China, and South Korea report on their work with a battery made with tiny, closely-spaced solar cells embedded into a stretchable polymer. The cells are connected to each other via "'serpentine' connections - wires that loop back on themselves in a repeating S shape, with that string of loops itself looped into an S shape." When the polymer is stretched, the wires stretch but do not become taut or "pop up." Additionally, according to the team, the battery can be charged wirelessly over a short distance.

What's the Big Idea?

With all the buzz surrounding flexible, stretchable electronics, one big barrier to their entering the market has been the lack of equally flexible power sources. Another challenge involved reducing their size without reducing the performance. University of Illinois professor and lead author John Rogers says flexible battery-operated electronics could be used in a variety of applications, most notably "those that involve devices integrated with the outside of the body, on the skin, for health, wellness and performance monitoring."

Photo Credit: Shutterstock.com

Read it at BBC News

LinkedIn meets Tinder in this mindful networking app

Swipe right to make the connections that could change your career.

Getty Images
Sponsored
Swipe right. Match. Meet over coffee or set up a call.

No, we aren't talking about Tinder. Introducing Shapr, a free app that helps people with synergistic professional goals and skill sets easily meet and collaborate.

Keep reading Show less

Think you’re bad at math? You may suffer from ‘math trauma’

Even some teachers suffer from anxiety about math.

Image credit: Getty Images
Mind & Brain

I teach people how to teach math, and I've been working in this field for 30 years. Across those decades, I've met many people who suffer from varying degrees of math trauma – a form of debilitating mental shutdown when it comes to doing mathematics.

Keep reading Show less

A world map of Virgin Mary apparitions

She met mere mortals with and without the Vatican's approval.

Strange Maps
  • For centuries, the Virgin Mary has appeared to the faithful, requesting devotion and promising comfort.
  • These maps show the geography of Marian apparitions – the handful approved by the Vatican, and many others.
  • Historically, Europe is where most apparitions have been reported, but the U.S. is pretty fertile ground too.
Keep reading Show less

How KGB founder Iron Felix justified terror and mass executions

The legacy of Felix Dzerzhinsky, who led Soviet secret police in the "Red Terror," still confounds Russia.

Getty Images
Politics & Current Affairs
  • Felix Dzerzhinsky led the Cheka, Soviet Union's first secret police.
  • The Cheka was infamous for executing thousands during the Red Terror of 1918.
  • The Cheka later became the KGB, the spy organization where Russia's President Putin served for years.
Keep reading Show less