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Scientists learn more about the first hours of a lithium-ion battery's life

New technology enables nanoscale molecular view of self-assembling gateway structure within

07-Feb-2020

The first hours of a lithium-ion battery's life largely determine just how well it will perform. In those moments, a set of molecules self-assembles into a structure inside the battery that will affect the battery for years to come. This component, known as the solid-electrolyte interphase or ...

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Making high-temperature superconductivity disappear to understand its origin

Scientists have collected evidence suggesting that a purely electronic mechanism causes copper-oxygen compounds to conduct electricity without resistance at temperatures well above absolute zero

06-Feb-2020

When there are several processes going on at once, establishing cause-and-effect relationships is difficult. This scenario holds true for a class of high-temperature superconductors known as the cuprates. Discovered nearly 35 years ago, these copper-oxygen compounds can conduct electricity ...

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New electrode design may lead to more powerful batteries

06-Feb-2020

New research by engineers at MIT and elsewhere could lead to batteries that can pack more power per pound and last longer, based on the long-sought goal of using pure lithium metal as one of the battery's two electrodes, the anode. The new electrode concept comes from the laboratory of Ju Li, the ...

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Finding the source of chemical reactions

06-Feb-2020

Scientists are constantly searching for the source of things like the origin of the universe, matter or life. Scientists at the U.S. Department of Energy's (DOE) Argonne National Laboratory, in a collaboration with the Massachusetts Institute of Technology (MIT) and several other universities, ...

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Accelerating chemical reactions without direct contact with a catalyst

05-Feb-2020

A Northwestern University research team has revealed a new approach to conducting chemical reactions -- one that doesn't require direct contact with a catalyst. In typical catalytic reactions, the catalyst - the substance that increases the rate of a chemical reaction - and the substrate ...

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Machine learning technique speeds up crystal structure determination

04-Feb-2020

Nanoengineers at the University of California San Diego have developed a computer-based method that could make it less labor-intensive to determine the crystal structures of various materials and molecules, including alloys, proteins and pharmaceuticals. The method uses a machine learning ...

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Anti-solar cells: A photovoltaic cell that works at night

31-Jan-2020

What if solar cells worked at night? That's no joke, according to Jeremy Munday, professor in the Department of Electrical and Computer Engineering at UC Davis. In fact, a specially designed photovoltaic cell could generate up to 50 watts of power per square meter under ideal conditions at night, ...

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A megalibrary of nanoparticles

A simple, modular chemical approach could produce over 65,000 different types of complex nanorods

28-Jan-2020

Using straightforward chemistry and a mix-and-match, modular strategy, researchers have developed a simple approach that could produce over 65,000 different types of complex nanoparticles, each containing up to six different materials and eight segments, with interfaces that could be exploited in ...

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Can I mix those chemicals? There's an app for that!

New technology can find the safest way to store and dispose of reactive chemicals

27-Jan-2020

Improperly mixed chemicals cause a shocking number of fires, explosions, and injuries in laboratories, businesses, and homes each year. A new open source computer program called ChemStor developed by engineers at the University of California, Riverside, can prevent these dangerous situations by ...

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Less may be more in next-gen batteries

24-Jan-2020

The process of developing better rechargeable batteries may be cloudy, but there's an alumina lining. A slim layer of the metal oxide applied to common cathodes by engineers at Rice University's Brown School of Engineering revealed new phenomena that could lead to batteries that are better geared ...

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