Berlin 2018 – wissenschaftliches Programm
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MM: Fachverband Metall- und Materialphysik
MM 15: Battery Materials
MM 15.1: Vortrag
Montag, 12. März 2018, 17:30–17:45, H 0106
Neutron imaging of Li-ion batteries with fission and thermal neutrons — •Samantha Zimnik1,2, Michael Knapp1,3, Malgorzata Makowska2,4, Martin Johann Mühlbauer1,2, and Helmut Ehrenberg1,3 — 1Institute for Applied Materials (IAM), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany — 2Heinz Maier-Leibnitz Zentrum (MLZ), Technische Universität München, Lichtenbergstr. 1, 85748 Garching, Germany — 3Helmholtz Institute Ulm for Electrochemical Energy Storage (HIU), Helmholtzstrasse 11, 89081 Ulm, Germany — 4University of Bayreuth, Universitätsstraße 30, 95447 Bayreuth, Germany
Neutron imaging provides outstanding sensitivity to light elements, leading to high contrasts between hydrogen containing materials and metals. Combining imaging with fission and thermal neutrons at a single setup will benefit from the even more selective contrast for hydrogen provided by fission neutrons, while thermal neutrons will serve to reach higher spatial resolution for structure materials surrounding the hydrogen containing materials. Therefore an upgrade of the instrument is currently ongoing to make both neutron energy ranges available at a single setup and benefit from their respective advantages to follow the electrolyte distribution of lithium-ion batteries during operation. The thermal neutron beam option is funded by BMBF in the frame of research project 05K16VK3.