World Bulletin / News Desk
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.
The researchers are looking for components that would allow construction in the open air for a more efficient production process and greater commercial viability.
Neelam Singh, who worked on the project, believes the technology could be integrated with solar cells to give any surface a stand-alone energy capture and storage capability.
The researchers tested the device using nine bathroom tiles coated with the paint and connected to each other. When they were charged, the batteries powered a set of light-emitting diodes for six hours, providing a steady 2.4 volts.
The system is said to be able to suck in air from a 300-metre radius and from up to seven kilometres (over four miles) upwards.
Would create new distribution, content creation giant, if approved by regulators
Waves of cyberattacks disrupt services for many East Coast US Internet users
Critics slam company after claims it allowed NSA to scan all users’ emails
Shenzhou-11 to take 2 astronauts into space, dock with orbiting space lab Tiangong-2 within 2 days
A German politician has said Facebook should pay for failing to remove online hate comment
For the first time in over 120 years, a design patent case will be heard by the US supreme court.
Toyota is usually associated with cars, but it has been investing millions in robotics and Kirobo is its first commercial foray into the sector.
A joint Mongolian-Japanese expedition found the giant print, which measures 106 centimetres (42 inches) long and 77 centimetres wide.
Current conditions may ‘commit Earth to an eventual total warming of 5 degrees Celsius’ in few thousand years, author says
Cyber-attack in 2014 likely the largest data breach in history
Photographs, videos, polls, quoted tweets no longer count toward 140-character limit
2.5 million phones recalled days before Apple introduces iPhone 7
Mark Zuckerberg has vowed to continue effort to provide satellite for Africa
3.7-billion-year-old rock suggests life began soon after Earth’s formation
Facebook will target advertising to Whatsapp users but will steer clear of third party advertising content