Scientists have developed an ultra-thin gel-like coating material that has the potential to extend the life and improve the efficiency of lithium-sulfur batteries.
“Our approach is general, in that it can be integrated with virtually any kind of sulfur electrode to increase cycling stability,” said lead investigator of the study Hailiang Wang, Assistant Professor of Chemistry at Yale University in New Haven, Connecticut, US.
In a study published online in the Proceedings of the National Academy of Sciences, the researchers described the new material which can be applied to any sulfur cathode.
A cathode is the positive terminal on a battery.
Sulfur cathodes coated with the material can be stably discharged and recharged for more than 1,000 cycles, enhancing the battery’s efficiency and number of cycles, according to the researchers.
“The developed film is so thin and light it will not affect the overall size or weight of the battery, and thus it will function without compromising the energy and power density of the device,” Wang said. Continue reading Gel-like coating can boost lithium-sulfur battery performance
Two spacewalking astronauts ventured outside the International Space Station on Friday for a 6-1/2-hour spacewalk, the first of three to prepare the orbiting laboratory for future commercial space taxis and to tackle maintenance chores, NASA TV showed.
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In the darkened offices of a tech start-up, a handful of computer engineers sifts through a mountain of intelligence data that would normally be the work of a small army of Indian security agents.
Continue reading India turns to AI as cyber warfare threats grow
A team of Ugandan engineers has invented a “smart jacket” that diagnoses pneumonia faster than a doctor, offering hope against a disease which kills more children worldwide than any other.
Continue reading Ugandans invent ‘smart jacket’ to diagnose pneumonia
Australia on Sunday announced an overhaul of security at all its international airports, with technology set to replace passports as means of identifying passengers by 2020.
Continue reading Facial recognition, fingerprints to replace passports at Australian airports
In an effort to reduce air pollution due to vehicular emissions in the country, scientists have designed a new solar-assisted bicycle that may prove to be a low-cost, eco-friendly alternative to two wheeler motor vehicles, and may hit the market by next year.
Continue reading Novel solar-powered bicycle to combat air pollution
Digital transformation across industries can help save trillions of dollars in cost and consumers stand to benefit more from it provided there are policy incentives to improve societal outcomes, says a report.
Continue reading ‘Digital transformation can save trillions of dollars in cost’
The World Economic Forum, NITI Aayog, the World Intellectual Property Organization and the Cornell University will work together to develop an India Innovation Index that will provide impetus to Indian states to drive the innovative spirit.
Continue reading India Innovation Index to measure performance of Indian states
Crammed into a dome with one bathroom, six scientists will spend eight months munching on mostly freeze-dried foods — with a rare treat of Spam — and have only their small sleeping quarters to retreat to for solace.
Continue reading Freeze-dried food and 1 bathroom: 6 simulate Mars in dome
Evangelists for driverless cars see a bright future coming down the road: thousands of lives saved, countless driving hours freed up, cityscapes transformed with traffic jams vanquished.
Continue reading Society set for head-on collision with driverless cars