A Study of Li<sub>3.8</sub>Ge<sub>0.9</sub>S<sub>0.1</sub>O<sub>4</sub> Solid Electrolyte Stability Relative to Electrode Materials of Lithium Power Sources

A Study of Li<sub>3.8</sub>Ge<sub>0.9</sub>S<sub>0.1</sub>O<sub>4</sub> Solid Electrolyte Stability Relative to Electrode Materials of Lithium Power Sources

The stability of Li<sub>3.8</sub>Ge<sub>0.9</sub>S<sub>0.1</sub>O<sub>4</sub> lithium-conducting solid electrolyte versus lithium metal and Li–V bronze Li<sub>1.3</sub>V<sub>3</sub>O<sub>8</sub> is studied in the pre...

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Bibliographic Details
Main Authors: Mariya Shchelkanova, Georgiy Shekhtman, Svetlana Pershina
Format: Article
Language:English
Published: MDPI AG 2023-01-01
Series:Batteries
Subjects:
all-solid-state lithium batteries
lithium-conducting solid electrolytes
Li–V bronze
Li<sup>+</sup> conductivity
LISICON structure
Online Access:https://www.mdpi.com/2313-0105/9/2/66
Description
Summary:The stability of Li<sub>3.8</sub>Ge<sub>0.9</sub>S<sub>0.1</sub>O<sub>4</sub> lithium-conducting solid electrolyte versus lithium metal and Li–V bronze Li<sub>1.3</sub>V<sub>3</sub>O<sub>8</sub> is studied in the present research. Isothermal heat treatment and thermal analysis of the mixtures of Li<sub>1.3</sub>V<sub>3</sub>O<sub>8</sub> and Li<sub>3.8</sub>Ge<sub>0.9</sub>S<sub>0.1</sub>O<sub>4</sub> powders indicate that there is no interaction between them below 300–350 °C. Moreover, Li<sub>3.8</sub>Ge<sub>0.9</sub>S<sub>0.1</sub>O<sub>4</sub> solid electrolyte is stable versus lithium at 100 °C for 240 h. A model of a lithium-ion power source with a Li<sub>1.3</sub>V<sub>3</sub>O<sub>8</sub>-based cathode and a lithium metal anode is assembled and tested. The data obtained show that Li<sub>3.8</sub>Ge<sub>0.9</sub>S<sub>0.1</sub>O<sub>4</sub> can be used in all-solid-state medium-temperature lithium and lithium-ion batteries.
ISSN:2313-0105

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