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Current issue

ELEKTRO 7/2019 was released on June 26th 2019. Its digital version will be available on July 26th 2019.

Topic: Cables, conductors and cable engineering, Tools, equipment and accessories for work with cables

Main Article
Asset management and diagnostic needs in Industry 4.0

SVĚTLO (Light) 4/2019 was released on July 29th 2019. Its digital version will be available on August 29th 2019.

Lighting installations
Foxtrot controls new location of barmans
Dynamic illumination of Guardian Angels’ chapel in Sušice

Accessories of lighting installations
Safety, austerity and comfort with KNX
Worldwide first LED switching source with KNX interface from MEAN WELL producer
KNX – the system with future
Schmachtl – connector installation gesis

Using Crumpled Graphene Balls to Make Better Batteries

19.01.2018 | Northwestern University | www.mccormick.northwestern.edu

Lithium metal-based batteries have the potential to turn the battery industry upside down. With the theoretically ultra-high capacity of lithium metal used by itself, this new type of battery could power everything from personal devices to cars.

In current batteries, lithium is usually atomically distributed in another material such as graphite or silicon in the anode,” explains Northwestern Engineering’s Jiaxing Huang. “But using an additional material dilutes the battery’s performance.” Huang and his collaborators have solved this problem by taking a different approach — one that even makes batteries lighter weight and able to hold more lithium.

More effective batteries

The solution lies in a scaffold made from crumpled graphene balls, which can stack with ease to form a porous scaffold, due to their paper ball-like shape. They not only prevent dendrite growth but can also survive the stress from the fluctuating volume of lithium.

Read more at Northwestern University

Image Credit: Northwestern University

-jk-