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AssigneeIndustry-Academic Cooperation Foundation, Yonsei University
InventorsYoon Seok JUNG, Hiram Kwak
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The present disclosure relates to a solid electrolyte containing a halide-based nanocomposite, a method for preparing the same and an all-solid-state battery including the solid electrolyte. Halide-based nanocomposites were prepared by the mechanochemical reaction of a lithium oxide precursor, a lithium halide precursor, and a metal halide in order to improve the low ion conductivity and large interfacial resistance of the existing halide-based solid electrolyte. Furthermore, it is possible to provide superior atmospheric stability, improve ion conductivity through activation of interfacial conduction and, at the same time, significantly improve the interfacial stability with a sulfide-based solid electrolyte and high-voltage cycle stability.
A halide-based nanocomposite for a solid electrolyte of a lithium-ion battery, represented by at least one of Chemical Formulas 1-3:
A method for preparing a halide-based nanocomposite for a solid electrolyte of a lithium-ion battery, comprising preparing a halide-based nanocomposite represented by at least one of Chemical Formulas 1-3 by mixing a lithium oxide precursor with a metal halide precursor in solid state under inert gas atmosphere:
Dependencies are inferred from the claim text.