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Batteries

— Energy

Battery anodes made from pollen are nothing to sneeze at

As our dependence on mobile devices grows and we continue the shift to electric vehicles, there is a need to not only develop better performing batteries but find more accessible and sustainable materials with which to build them. To this end, researchers have now developed an anode for lithium-ion batteries using something those with allergies certainly wouldn't miss: pollen from bees and cattails.

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— Automotive

Tiny computers could keep EV batteries from crapping out when one cell dies

Perhaps along with the fact that they don't allow for thousands of miles of travel on a single charge, electric vehicle batteries do have a shortcoming – they're only as good as their weakest cell. That's because all their 100-plus cells are connected in series, meaning that if one of them dies, then the whole battery pack stops working. That could be about to change, however, thanks to research being carried out at Germany's Fraunhofer Institute for Manufacturing Engineering and Automation.

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— Electronics

Rechargeable paper sheets could help rewrite the book on electricity storage

Using millions of tiny fibers of nanocellulose sheathed with a conductive polymer coating, scientists have created sheets of paper that can store significant amounts of electric charge. Dubbed "power paper," the material is able to be recharged many hundreds of time, and in mere seconds. It is also lightweight, requires no toxic chemicals or heavy metals to create, and may offer a renewable and prolific way to provide energy to all manner of devices.

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— Electronics

Researchers create sodium battery in industry standard "18650" format

A team of researchers in France has taken a major step towards powering our devices with rechargeable batteries based on an element that is far more abundant and cheaper than lithium. For the first time ever, a battery has been developed using sodium ions in the industry standard "18650" format used in laptop batteries, LED flashlights and the Tesla Model S, among other products.

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— Energy

More hurdles jumped on path to a practical lithium-air battery

With theoretical energy densities as much as 10 times that of current lithium-ion batteries, lithium-air (or lithium-oxygen) batteries hold tremendous potential for storage of renewable energy and use in mobile devices and electric cars. Although a practical lithium-air battery is still some years from becoming a commercial reality, researchers at the University of Cambridge have developed a working laboratory demonstrator that shows how many of the problems holding back the development of lithium-air batteries could be overcome.


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