6:30 PM - *CH01.15.01
Advanced Neutron Characterisation of Rechargeable Batteries
ANSTO1,University of Wollongong2
The performance of rechargeable batteries is determined largely by materials structure- and dynamic-function relations. During battery function, materials undergo change, such as the experienced by electrode materials during the compositional change that occurs during battery cycling. Robust characterization methods that quantitatively and accurately capture structure- and dynamic-function relations across the relevant length and timescales for batteries are essential to the strategic design of materials with superior function.
Neutrons have attributes that make them exceptionally useful for this purpose. The predominantly nuclear interaction of neutrons with matter results in both high penetration, allowing the analysis of materials within whole commercial batteries, as well as an elemental sensitivity that is particularly well suited to battery materials composition.
This talk will give examples of neutron characterization of rechargeable battery materials, with a focus on instrumentation at the Australian Centre for Neutron Scattering, and much of which examines materials within whole batteries during operation. Examples using neutron powder diffraction,1-5 neutron imaging,6,7 small and ultra small angle neutron scattering,8 and quasielastic neutron scattering,9 will be presented.
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2 C. Didier, W. K. Pang, Z. Guo, S. Schmid, V. K. Peterson, Chem. Mater., 2020.
3 G. Liang, C. Didier, Z. Guo, W. K. Pang, V. K. Peterson, Adv. Mater., 2020.
4 W. K. Pang, V. K. Peterson, N. Sharma, J. -J. Shiu, S. -h. Wu, Chem. Mater., 2014.
5 W. K. Pang, V. K. Peterson, J. Appl. Cryst., 2015.
6 D. Petz, M. J. Mühlbauer, A. Schökel, K. Achterhold, F. Pfeiffer, T. Pirling, M. Hofmann, A. Senyshyn, Batteries & Supercaps, 2021.
7 D. Petz, M. J. Mühlbauer, V. Baran, M. Frost, A. Schökel, C. Paulmann, Y. Chen, D. Garcés, A. Senyshyn, J. Power Sources, 2020.
8 S. Seidlmayer, J. Hattendorff, I. Buchberger, L. Karge, H. A. Gasteiger, R. Gilles, J. Electrochem. Soc. 2015
9 M. J. Klenk, S. E. Boeberitz, J. Dai, N. H. Jalarvo, V. K. Peterson, W. Lai, Solid State Ionics, 2017