Speaker
Stefan Seidlmayer
Description
Poster (preferred) or short talk (15min).
In situ / operando Neutron Diffraction is a powerful tool to study phase inhomogeneity and relaxation phenomena in lithium-ion batteries.
Time-resolved operando neutron diffraction measurements of a commercial high power LiCoO2/Graphite pouch bag battery operated in the temperature range of −20 °C to 40 °C were done at STRESS-SPEC.
Analysis of the relaxation times allows to attribute the slow lithium transport due to limitations of grain boundaries between different phase domains or crystallites within the particles rather than in-plane transport.
