The webinar is held on the platform zoom. To login and participate, click on the following link:
Meeting ID: 676 8329 1498
- 11:00 am. The webinar starts. Moderator: Professor Leif Asp, Co-Director Area of Advance Materials Science
- High-performance materials based on nanoscopic building blocks: from composites to electrodes,
Juan J. Vilatela, group leader at IMDEA Materials, centre for applied research, Madrid. Associate lecturer on Physics, Nanomaterials and Materials Science at the Madrid Polytechnic University and Carlos III University.
- Carbon fibers for multifunctional composites, Fang Liu is Associate Professor at the Department of Industrial and Materials Science, Chalmers University of Technology.
High-performance materials based on nanoscopic building blocks: from composites to electrodes
Fostering the enormous potential of nanomaterials requires assembling them as organized structures on a macroscopic scale. For 1D nanomaterials their natural embodiment is as aligned fibres or fabrics that efficiently exploit the axial properties of their constituents. We work with a method to produce macroscopic solids made of 1D nanostructured directly collected as they grow floating in the gas phase. The resulting ensembles are “macromolecular” networks with many superior properties compared to monolithic materials: fibers of carbon nanotubes have tensile mechanical properties above many high-performance polymer fibers; fabrics of CNTs are ideal built-in porous current collectors to eliminate electron resistance limitations in composite battery electrodes, sheets of silicon nanowires are flexible and have high cyclability as lithium-ion battery anodes.
Juan J. Vilatela is a group leader at IMDEA Materials, a centre for applied research based in Madrid. He is also an associate lecturer on Physics, Nanomaterials and Materials Science at the Madrid Polytechnic University and Carlos III University. His group is focused on methods of synthesis and assembly of 1D nanomaterials, and their application for energy storage and as structural elements.
Carbon fibers for multifunctional composites
Battery weight is one of the critical bottlenecks for electric vehicles. Multifunctionality, for instance integrating energy storage capabilities to structural components, is a key enabling technology in realizing substantial weight savings on the system level. Carbon fibres are widely used as reinforcements in polymer composites, while graphite powders are widely used as negative electrodes in batteries. Thus, using carbon fibres as negative electrodes, together with solid electrolyte and other components, one can build the so-called structural composite batteries. Imaging the doors and hoods of an electric car also store energy! However, almost all carbon fibres were developed from the mechanical point of view; a fundamental understanding on the behaviour of carbon fibres under the dynamic electrochemical and mechanical processes in structural composite batteries, and on the relationship between their performance and microstructure are still largely lacking. We aim to gain a fundamental understanding of carbon fibres in the multifunctional composites.
25 November, 2021, 11:00
25 November, 2021, 12:00