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Abstract

Batteries are already a crucial part of our electronic devices and electric infrastructure and will be even more in the future. The electrification of automobiles and energy storage for renewable energies, like wind and solar, are just examples of the growing demand for better energy storage solutions. Solid-state Li-ion batteries promise a higher energy density while improving safety. But before solid-state batteries may become a real alternative to conventional Li-ion batteries, they must outperform them in at least one key property, such as energy density, for the same cost of production. One important process for the fabrication of solid-state Li-ion batteries is solid-phase sintering. Hence, a better understanding of how, e.g., temperature and chemical composition affect the process of sintering and thus the resulting material properties is crucial. We show a grand potential phase-field method for simulating the combined sintering of possible solid-state Li-ion batterie materials (LCP, LATP).