Skip to main content

Scientists say paper battery could be in the works

Friday, December 11, 2009 WASHINGTON: Ordinary paper could one day be used as a lightweight battery to power the devices that are now enabling the printed word to be eclipsed by e-mail, e-books and online news.Scientists at Stanford University in California reported on Monday they have successfully turned paper coated with ink made of silver and carbon nanomaterials into a "paper battery" that holds promise for new types of lightweight, high-performance energy storage.The same feature that helps ink adhere to paper allows it to hold onto the single-walled carbon nanotubes and silver nanowire films. Earlier research found that silicon nanowires could be used to make batteries 10 times as powerful as lithium-ion batteries now used to power devices such as laptop computers."Taking advantage of the mature paper technology, low cost, light and high-performance energy-storage are realized by using conductive paper as current collectors and electrodes," the scientists said in research published in the Proceedings of the National Academy of Sciences.This type of battery could be useful in powering electric or hybrid vehicles, would make electronics lighter weight and longer lasting, and might even lead someday to paper electronics, the scientists said. Battery weight and life have been an obstacle to commercial viability of electric-powered cars and trucks."Society really needs a low-cost, high-performance energy storage device, such as batteries and simple supercapacitors," Stanford assistant professor of materials science and engineering and paper co-author Yi Cui said.Cui said in an e-mail that in addition to being useful for portable electronics and wearable electronics, "Our paper supercapacitors can be used for all kinds of applications that require instant high power.""Since our paper batteries and supercapacitors can be very low cost, they are also good for grid-connected energy storage," he said.Peidong Yang, professor of chemistry at the University of California-Berkeley, said the technology could be commercialized within a short time.

Comments

Popular posts from this blog

India's swine flu death rate is increasing

Friday, August 14, 2009 MUMBAI: A 26-year-old woman died Thursday of H1N1 swine flu in the southern city of Bangalore, raising India's death toll from the virus to 20, authorities said.The death was the first reported in India's information technology capital, the Press Trust of India reported.Meanwhile in Pune, the worst-affected in India, two more victims of the virus died Thursday, raising the death toll in that western city near Mumbai to 12, the report said. The victims were an 11-month-old boy and a 75-year-old old woman.US media reported movie halls, schools and colleges were ordered closed Thursday for three days to a week in Mumbai, the commercial and financial capital of the country, as fear of the pandemic spread.Prajakata Lavangare, a spokeswoman for the government of Maharashtra state of which Mumbai is the capital, said similar orders were issued in Pune, which is also located in the state.The woman who died in Bangalore was identified only as Roopa, a teacher in...

Suicide bombings kill 18 in Iraq

Thursday, August 13, 2009 MOSUL: At least 18 people, most of them members of the ancient Yazidi religious sect, were killed when two suicide bombers blew themselves up on Thursday in a packed cafe in northern Iraq, a local government official said.At least 31 people were also wounded after the bombers detonated suicide belts packed with explosives in the cafe in Kalaa town, in the district of Sanjar, local district chief Dakheel Qassem Hasoon, told a foreign news agency."Two suicide bombers entered the Cafe Barbaroz at 4:30 pm (1330 GMT) and blew themselves up, killing 18 civilians and wounding 31. Most of the victims were Yazidis," Hasoon said.Kalaa, northwest of the insurgent stronghold of Mosul in northern Nineveh province is predominantly populated by the minority Yazidi religious sect, as well as Arabs and Kurds.The attack is the deadliest since Monday, when 51 people were killed across Iraq, including 28 members of the tiny Shabak sect cut down when two truck bombs det...

US drones to target Taliban in Afghan war

Friday, July 31, 2009 WASHINGTON: The US military plans to use more drone aircraft to target Taliban militants in Afghanistan while focusing less on hunting down Al-Qaeda figures, report said on Thursday.Although defeating the Al-Qaeda terror network remains an overriding goal for Washington, officials now believe the best way to pursue that objective is to ensure stability in Afghanistan and neighboring Pakistan instead of Al-Qaeda manhunts, the paper said, citing US government and Defense Department officials.It was more important to prevent a slide towards violence and anarchy that could be exploited by Al-Qaeda, which used Afghanistan to stage its attacks on the United States on September 11, 2001, the officials said."We might still be too focused on Bin Laden," an official said. "We should probably reassess our priorities."The shift in priorities for the drone fleet comes despite President Barack Obama's declaration that defeating and dismantling Al-Qaeda ...