Spectroscopic neutron imaging for resolving hydrogen dynamics changes in battery electrolytes
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Date
2023-08
Publication Type
Journal Article
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Abstract
We present the use of spectroscopic neutron imaging (SNI), a bridge between imaging and scattering techniques, for analyzing battery electrolytes. The scattering information of CHn–based organic solvents and electrolytes was mapped in a two-dimensional space through time-of-flight neutron imaging, which exploits the wavelength-dependent properties of hydrogen atoms. The results show partial solidification and concertation change of electrolyte as a function of temperature. Our investigation demonstrates a novel approach to tracking real-time physical and chemical changes in H-containing compounds, by which limitations of new electrolyte mixtures and additives can be evaluated. The sensitivity of SNI to hydrogen in CHn functional groups extends the use of spectral methods to inspect electrolytes in Li-ion batteries and organic solvents for relevant applications beyond electrochemical systems.
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published
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Journal / series
Materials Today Advances
Volume
19
Pages / Article No.
100405
Publisher
Elsevier
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Subject
Non-destructive characterization; Battery organic solvents; Wavelength-resolved imaging; Neutron radiography; Lithium-ion electrolyte materials