Neutron Diffraction studies on Lithiation dynamics of graphite anodes

15 May 2019, 19:00
Institute of Advanced Study (TUM Campus Garching)

Institute of Advanced Study

TUM Campus Garching

Lichtenbergstraße 2a, 85748 Garching


Stefan Seidlmayer


Lithium ion batteries most commonly use graphite as an anode material. Understanding the dynamical processes of the lithiation and delithiation play a crucial role in understanding performance, degradation of graphite based anodes. Our operando neutron diffraction of LiCoO2/graphite cells showed the occurrence of inhomogeneously delithiated graphite anodes.Phase coexistence of multiple stages is followed by relaxation into a single phase or a two phase mixture close to the mean lithium content.

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