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Publisher's note Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations
A series of the Li7La3Zr2O12–x wt% 40.2Li2O·5.7Y2O3·54.1SiO2 composite electrolytes (x = 1–10) were obtained at 1150 °C for 1 h. According to X-ray diffraction and Raman spectroscopy, the obtained composites with x < 3 had no impurities. The glass additive was partially crystallized in the studied composites. A glass addition of 1 wt% leads to the conductivity growth from 1.5 × 10−4 to 2.8 × 10−4 S cm−1 at 25 °C. With further addition of the glass, the total conductivity of electrolyte decreased. The composite electrolytes with x = 1–3 have higher total conductivity values than the cubic Li7La3Zr2O12 at studied temperature range. It was determined that the glass addition into the cubic Li7La3Zr2O12 increased its stability in contact with air. The composite electrolyte with 1 wt% glass is stable versus metallic lithium at 200 °C. Thus, the new obtained composites can be used as solid electrolytes for high-energy power sources.
Ionics – Springer Journals
Published: Jun 1, 2019
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