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Scientists in the United States have developed a paint that can store and deliver electrical power just like a battery.
Traditional lithium-ion batteries power most portable electronics. They are already pretty compact but limited to rectangular or cylindrical blocks.
Researchers at Rice University in Houston, Texas, have come up with a technique to break down each element of the traditional battery and incorporate it into a liquid that can be spray-painted in layers on virtually any surface.
"This means traditional packaging for batteries has given way to a much more flexible approach that allows all kinds of new design and integration possibilities for storage devices," said Pulickel Ajayan, who leads the team on the project.
The rechargeable battery is made from spray-painted layers, with each representing the components of a traditional battery: two current collectors, a cathode, an anode and a polymer separator in the middle.
The paint layers were airbrushed onto ceramics, glass and stainless steel, and on diverse shapes such as the curved surface of a ceramic mug, to test how well they bond.
One limitation of the technology is in the use of difficult-to-handle liquid electrolytes and the need for a dry and oxygen-free environment when making the new device.
Russians drop leaflets on ISIS, implying America and Israel is behind them 2015-10-09 4:38
Dire warning: The leaflets (pictured) being dropped by Russian jets warn people to get out of the zone of 'special operations' - and one implies that terror group al-Nusra Front are backed by America and Israel
Syrian army helicopters have dropped tens of thousands of leaflets on ISIS and rebel fighters, warning them to get out now and 'don't make it even ...
College diversity officer charged for #KillAllWhiteMen tweet 2015-10-08 23:16
A U.K. college diversity officer’s utopia would include no white men – after they are all executed.
An employee of Goldsmiths University of London’s independent students’ union was arrested in London Tuesday and charged with sending a menacing or offensive messages via a public network for her “#killallwhitemen” tweets.
Bahar Mustafa, 28, faces one charge each for electronic communications she sent over ...
Paedo deported from UK sneaked back and worked with kids for two years before being caught 2015-10-08 23:50 Landazuri worked with teenagers for two years before he was caught
Juan Guerra Landazuri successfully lived in Britain with his new identity for two years and even got a job helping vulnerable teenagers - despite being banned from working with children for life.
The 44-year-old, originally known as Juan Alejandro Guerra, was jailed for four years in 2002 for two offences of ...
Why Don't More Minorities Hike? 2015-10-08 23:06
As a Bay Area native, I grew up in outdoor spaces. While hiking trails in Tilden Park in the East Bay and in the Marin Headlands in the North Bay, I gained an appreciation of and respect for natural spaces that eventually led me to visit our national parksâ€”Yosemite being my favorite.
It was in Yosemite that I started to notice ...