Speaker
Tobias Hölderle
Description
High-performance graphite evolved to the most common anode material and is used in nearly every commercial Li-ion battery nowadays. However, there is a clear lack of information about the structural stability of Li$_{x}$C$_{6}$ and its phase diagram. In literature, temperature-resolved phase stability of lithiated graphites is therefore studied poorly and the results are often controversial. Hence, the structural evolution of lithiated graphites was studied at high temperatures showing the decomposition of the lithiated anode and a corresponding loss of intercalated lithium ions, resulting in the evolution of phases like LiF and Li$_{2}$O, which are strongly correlated with the degradation of the solid electrolyte interface (SEI).
Primary author
Co-authors
Anatoliy Senyshyn
Peter Müller-Buschbaum
(TU München, Physik-Department, LS Funktionelle Materialien)
