2024
DOI: 10.1021/acs.jpcc.3c05362
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Elucidating the Importance of Quaternary Dopants in Stabilizing Cubic LLZO at Low Temperature

Shilpa Umesh,
Vinoth Kumar Jayaraman,
Annigere S. Prakash

Abstract: Future-generation solid-state Li batteries could benefit from the use of garnet-type Li 7 La 3 Zr 2 O 12 (LLZO) as an electrolyte. However, attaining a stable and highly ionic conducting LLZO garnet at low temperature is a big challenge. In this work, cubic phase stabilized LLZO with enhanced ionic conduction was achieved at low temperature by "quaternary substitution," in specific substitution of Ga−Mg and Ta−Nb at Li and Zr sites, respectively. Investigations on the structural, morphological, and electrochem… Show more

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