Solid electrolyte, electrochemical cell including solid electrolyte, and method of preparing solid electrolyte

A technology of solid electrolytes and compounds, applied in solid electrolytes, chemical instruments and methods, non-aqueous electrolyte batteries, etc., can solve problems such as weak stability
CN112786952APending Publication Date: 2021-05-11SAMSUNG SDI CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SAMSUNG SDI CO LTD
Publication Date
2021-05-11

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Abstract

The present invention relates to a solid electrolyte, an electrochemical cell including solid electrolyte, and a method of preparing the solid electrolyte. The solid electrolyte includes a compound represented by Formula 1: Formula 1 (Li1-aMa)7-d+xPS6-d-x+kNxXdwherein, in Formula 1, M is Na, K, Ca, Fe, Mg, Ag, Cu, Zr, Zn, or a combination thereof; X is Cl, Br, F, I, a pseudohalogen, or a combination thereof; furthermore 0<x<1, 0<=a<1, 0<d<=1.8 and 0<=k<1, and wherein the compound has an argyrodite crystal structure. Formula1 (Li1-aMa)7-d+xPS6-d-x+kNxXd.
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Description

[0001] Cross References to Related Applications

[0002] This application claims priority from Korean Patent Application No. 10-2019-0141899 filed on November 7, 2019 and Korean Patent Application No. 10-2020-0096951 filed on August 3, 2020 at the Korean Intellectual Property Office and interests, and all interests arising therefrom, the contents of which are incorporated herein by reference in their entirety. technical field

[0003] The present disclosure relates to solid electrolytes, electrochemical cells (cells) including the solid electrolytes, and methods of making the solid electrolytes. Background technique

[0004] Recently, development of batteries having high specific energy and improved safety has been actively performed according to industrial demands. For example, lithium ion batteries have been put into practical use in the automotive field and in information-related equipment and communication equipment. Safety is of particular importance in the automotive...

Claims

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