Laser technology for energy-efficient production of battery cells coupled with improved performance

Save energy in production while also making it possible to create battery cells with higher power density and a longer service life

05-Apr-2023 - High-performance battery cells are a crucial prerequisite for electrifying the mobility sector. With this in mind, researchers at the Fraunhofer Institute for Laser Technology ILT in Aachen have developed innovative laser-based technologies for producing lithium-ion batteries — which, in ...

More than a coffee ring

Researchers develop method that promotes uniform drying of particle-containing liquids

10-Jun-2022 - What do coffee, red wine and ink have in common? The stubborn stains they leave behind. Anyone who has ever knocked over a cup of coffee will know that coffee dries in an unusual pattern, the stain is lighter at the center but it gets darker around the perimeter, an effect known as the coffee ...

Simple, mass production of giant vesicles using a porous silicone material

01-Nov-2018 - A technique to generate large amounts of giant vesicle (liposome) dispersion has been developed. The technique involves adsorbing a lipid into a silicone porous material resembling a "marshmallow-like gel" and then squeezing it out like a sponge by impregnating a buffer solution. This work was ...

'Dancing' holes in droplets submerged in water-ethanol mixtures

03-Jul-2018 - Researchers from Tokyo Metropolitan University have observed the formation of holes that move by themselves in droplets of ionic liquids (IL) sitting inside water-ethanol mixtures. This curious, complex phenomenon is driven by an interplay between how ionic liquids dissolve, and how the boundary ...

MOFs provide a better way to remove water from gas

22-May-2017 - The conventional view that metal-organic frameworks (MOFs) cannot be stable in water has been overturned by the development of an MOF that can selectively and effectively adsorb water to dry gas streams. "The achievement of energy efficient dehydration by our MOF is revolutionary," said Professor ...

Printed 'coffee rings' avoided with nanofibers

Cellulose nanofibers can help particles in ink and printed electronics disperse evenly

12-May-2017 - Drying is an important part of printing words and electronics. Particles suspended in liquid are applied to a surface and the liquid evaporates leaving the particles behind. Many times, the particles dry unevenly because of the so-called 'coffee ring effect'. Much like when spilled coffee dries ...

Battery Production: Laser Light instead of Oven-Drying and Vacuum Technology

06-Oct-2015 - In the truest sense, it’s all about watts at the Dresden-based Fraunhofer Institute for Ceramic Technologies and Systems IKTS and the Aachen-based Fraunhofer Institute for Laser Technology ILT. The joint project “DRYLAS - Laser-based Drying of Battery Electrode Slurries” focusses on the ...

Cellulose from wood can be printed in 3D

19-Jun-2015 - A group of researchers at Chalmers University of Technology have managed to print and dry three-dimensional objects made entirely by cellulose for the first time with the help of a 3D-bioprinter. They also added carbon nanotubes to create electrically conductive material. The effect is that ...

Spray drying the precision particle under the virtual magnifying glass

11-May-2015 - Spray drying is a common manufacturing process, used in the production of ceramic granulate for technical components or dental prostheses as well as dissolvable medicinal substances, food additives and in the processing of milk into powder. Using computer simulation methodology developed by ...

Liquids and glasses relax, too. But not like you thought.

20-Jan-2015 - A new insight into the fundamental mechanics of the movement of molecules published by researchers at the National Institute of Standards and Technology (NIST) offers a surprising view of what happens when you pour a liquid out of a cup. More important, it provides a theoretical foundation for a ...