Abstract
A lithium superionic conductor of Li10GeP2S12 that exhibits the highest lithium ionic conductivity among the sulfide electrolytes and the most promising oxide electrolytes, namely, Li6.6La3Sr0.06Zr1.6Sb0.4O12 and Li6.6La3Zr1.6Sb0.4O12, are successfully synthesized. Novel hybrid electrolytes with a weight ratio of Li6.6La3Zr1.6Sb0.4O12 to Li10GeP2S12 from 1/1 to 1/3 with the higher Li-ion conductivity than that of the pure Li10GeP2S12 electrolyte are developed for the fabrication of the advanced all-solid-state Li batteries.
Highlights
IntroductionAll-solid-state battery electrolyte has received increasing attention because of its advantages such as safety (nonexplosive) and excellent electrochemical properties (high conductivity and wide potential window)
All-solid-state battery electrolyte has received increasing attention because of its advantages such as safety and excellent electrochemical properties
A lithium superionic conductor of Li10 GeP2 S12 that exhibits an extremely high lithium ionic conductivity of 12 mS cm−1 at room temperature was first found by Canno et al [1], which represents the highest conductivity achieved in the sulfide solid electrolyte, exceeding even those of liquid organic electrolytes
Summary
All-solid-state battery electrolyte has received increasing attention because of its advantages such as safety (nonexplosive) and excellent electrochemical properties (high conductivity and wide potential window). A lithium superionic conductor of Li10 GeP2 S12 that exhibits an extremely high lithium ionic conductivity of 12 mS cm−1 at room temperature was first found by Canno et al [1], which represents the highest conductivity achieved in the sulfide solid electrolyte, exceeding even those of liquid organic electrolytes. Solid-state Li-ion electrolytes (SSEs) are the key materials for the fabrication of next-generation all-solid-state batteries. A lithium superionic conductor of Li10 GeP2 S12 that exhibits the highest lithium ionic conductivity among the sulfide electrolytes and the most promising oxide electrolytes, namely, Li6.6 La3 Sr0.06 Zr1.6 Sb0.4 O12 (LLZSSO) and Li6.6 La3 Zr1.6 Sb0.4 O12 (LLZSO) are successfully synthesized.
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