Granted Patent B2

US 12,489,138 · App. 17/659,369 · Granted Dec 2, 2025

Inventors: Jung-Ho Lee (Ansan-si, KR); Sambhaji Shivaji Shinde (Ansan-si, KR); Dong-Hyung Kim (Ansan-si, KR)

Assignee: INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY ERICA CAMPUS

H01M10/056C07D277/22C07D333/10H01M4/0407H01M4/405H01M4/5805H01M10/052H01M2300/0065

Abstract

Claims (21)

1 . An intermediate product of a solid electrolyte, the intermediate product comprising:

a compound in which a cation including thiophenium or thiazolium and an anion including fluorohydrogenate are bound; and

a solvent in which the compound is mixed.

2 . The intermediate product of the solid electrolyte of claim 1 , wherein the intermediate product of the solid electrolyte including the compound and the solvent is in a liquid or gel state.

3 . The intermediate product of the solid electrolyte of claim 1 , wherein the solvent comprises at least any one of acetonitrile, tetrahydrofuran, DMSO, or DMF.

4 . The intermediate product of the solid electrolyte of claim 1 , wherein

the cation comprises the thiophenium, and

the compound comprises a methyl group bonded with a sulfur element of the thiophenium.

5 . The intermediate product of the solid electrolyte of claim 1 , wherein

the cation comprises the thiazolium, and

the compound comprises an ethyl group bonded with a nitrogen element of the thiazolium.

6 . A method for preparing a solid electrolyte, the method comprising:

preparing the intermediate product of the solid electrolyte according to claim 1 ; and

removing and drying the solvent included in the intermediate product of the solid electrolyte to prepare the solid electrolyte.

7 . A secondary battery comprising:

a positive electrode;

a solid electrolyte disposed on the positive electrode and prepared according to claim 6 ; and

a negative electrode disposed on the solid electrolyte.

8 . The secondary battery of claim 7 , wherein

a positive electrode active material of the positive electrode comprises lithium, phosphorus, and iron, and

a negative electrode active material of the negative electrode comprises lithium.

Assignments (1)

Priority Claims (1)

Continuity (2)

References Cited (91)