Mar 20 – 23, 2023
Campus Garching
Europe/Berlin timezone

Neutron diffraction and imaging of degradation and sodium storage process in sodium-ion batteries.

Mar 21, 2023, 11:00 AM
MW 2 001 - Lecture hall (Fakultät für Maschinenwesen)

MW 2 001 - Lecture hall

Fakultät für Maschinenwesen

Show room on map
Talk (17 + 3 min) Functional Materials Functional Materials 1


Domenico Battaglia (Technical University of Denmark)


A way to reduce the world’s reliance on conventional fuels is to obtain cost-competitive alternatives to convert and store energy. This could be done by implementing cheap storage devices, such as Na-Ion batteries [1], which are the focus of our investigations. During the first part of the project, major attention was dedicated to the fabrication of Prussian blue analog-based batteries, which are considered a good choice for stationary energy storage devices. However, there are still many unknowns related to this technology [2]. Neutron scattering and imaging allow performing operando experiments during charge-discharge without any repercussions on the battery’s functional properties. Neutrons are well suited to measure light elements making them a viable probe to study morphology and composition changes as well as ionic transport processes in Na-ion batteries. We have performed operando tomographic studies of the degradation processes, hereby imaging the dendrite growth process, to investigate the effect of cycling on the morphology and long-term stability of the cell. Dendrite formation and electrolyte degradations are two of the most predominant failure mechanisms in these devices [3]. Thus our studies are highly relevant for getting an insight into the key processes the technology is based on.

[1] A. Mauger, et al., Materials 2020, 13, 3453.
[2] Bingxing Xie, et al., Coordination Chemistry Reviews 2022, 460, 214478.
[3] Huan Shi, et al., Chem. Rec. 2022, 22, e202200112.

Primary authors

Dr Anna Fedrigo (STFC) Cédric Qvistgaard (Technical University of Denmark (DTU - Energy)) Domenico Battaglia (Technical University of Denmark) Estrid Naver (Technical University of Denmark) Luise Theil Kuhn (DTU Energy, Technical University of Denmark) Markus Strobl (Paul Scherrer Institut (PSI), Villigen, Switzerland) Nikolaj Zangenberg (Danish Technological Institute, Denmark, DK-8000 Aarhus C, Denmark.) Pavel Trtik (Paul Scherrer Institute) Søren Schmidt (European Spallation Source, Lund, Sweden)

Presentation materials

There are no materials yet.