Li-ion battery technology is confronted with limitations, including uncertainties regarding sustainable materials supply. Sustainable electrochemical storage systems based on Na, Mg, Zn, Ca, Al, Cl ions, so-called post-Li system, might become an alternative. Furthermore, finding trends among these different battery chemistries might lead to design principles for safer and better barreries based on the so-called descriptor concept. This will be illustrated using the correlation between the height of self-diffusion barriers and the occurrence of dendrite growth in batteries. In addition, a close collaboration between experiment and theory can lead to an atomic level understanding even in complex systems, as will be shown for the case of Na insertion into hard carbon anodes.

Descriptors and atomic level understanding for post-Li battery technologies

2019 Fall National Meeting

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