Battery knowledge · Materials analysis and post-mortem
Neutron imaging and diffraction
Methods using neutrons, which pass easily through steel cans but are strongly scattered or absorbed by lithium and hydrogen. Imaging shows electrolyte filling, gas and lithium distribution in whole cells; diffraction follows graphite staging and cathode phases in commercial cells while they cycle, and can catch lithium plating at low temperature. [1]
- Also called
- neutron radiography, neutron diffraction, neutron tomography
Example
Materials analysis and post-mortem: an example situation
Surface and bulk measurements may find different compositions in the same electrode without contradiction.
Read Neutron imaging and diffraction alongside Lithium plating in this context. Lithium metal depositing on the negative-electrode surface instead of intercalating into it. It is promoted by charging at low temperature or high current.
Use in Lemonergy
Connect results with scale and specimen preparation.
This is a reference concept. No executable Lemonergy block has been verified for this term.
References & further reading
Technical references
- Advanced characterization techniques for solid state lithium battery research
Yuxuan Xiang, Xia Li, Yongqiang Cheng, Xueliang Sun, Yong Yang · Materials Today · 2020
Technical reference · X-ray, solid-state NMR and neutron methods in solid-state battery research.