Sulfide-based solid electrolyte and lithium secondary battery comprising same
By using Li-PS-based compounds as sulfide-based solid electrolytes and optimizing the anion lattice structure, the problems of insufficient ionic conductivity and electrochemical characteristics of lithium secondary batteries were solved, resulting in higher lithium-ion migration speed and battery safety.
CN122095486APending Publication Date: 2026-05-26SK ON CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- SK ON CO LTD
- Filing Date
- 2024-10-25
- Publication Date
- 2026-05-26
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Figure CN122095486A_ABST
Abstract
According to the present invention, a sulfide-based solid electrolyte is provided, the sulfide-based solid electrolyte comprising a Li-P-S-based compound, the Li-P-S-based compound comprising at least one compound selected from the group consisting of P < 1-b > M S < 4-a > Sea3-(0 lt; a is less than or equal to 1.5, 0lt; blt; and M represents at least one element selected from the group consisting of Si, Ge, Sn, and Al), and a lithium secondary battery in which an electrolyte layer containing the sulfide-based solid electrolyte is provided on a positive electrode.
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