Magnus Graf

 

In operando NMR-Spectroscopy of Li-Ionen Batteries

In operando NMR-Spectroscopy Copyright: Magnus Graf

To develop new battery materials with increased capacities and longer lifetimes, a deeper understanding of the structural and dynamical changes which occur during electrochemical cycling is needed. Ex-situ methods cannot resolve changes that take place on short timescales and, thus, lose valuable information about short-lived interim states.

In-operando NMR and EPR methods can be used to obtain real-time information about the underlying processes. In the scope of this PhD thesis, these methods will be implemented and advanced, and, in combination with NMR-MAS spectra and EPR imaging, will be used to contribute to a comprehensive understanding of the fundamental mechanisms and the development of improved battery materials.