Title:
SOLID ELECTROLYTE, PREPARATION METHOD THEREFOR, AND SOLID-STATE BATTERY COMPRISING SAME
Document Type and Number:
WIPO Patent Application WO/2019/107878
Kind Code:
A1
Abstract:
The present invention provides: a solid electrolyte having excellent water stability and comprising a sulfide-based compound represented by the following chemical formula (1), and metal oxide nanoparticles located on the surface of the sulfide-based compound, wherein the metal oxide nanoparticles are one or more selected from the group consisting of MgO, CaO, SrO, BaO, TiO2, ZrO2, Cr2O3, MnO, NiO, ZnO, Al2O3 and SnO2; a preparation method therefor; and a solid-state battery having excellent manufacturing processability by using the same.
LiaMbScXd (1)
In the formula, M is one or more selected from the group consisting of Al, Si, P, Ga, Ge, As, In, Sn and Sb, X is one or more selected from the group consisting of F, Cl, Br, I, O, Se and Te, 1≤a≤7, 0≤b≤3, 4≤c≤7 and 0≤d≤1.
Inventors:
KIM KYUNGSU (KR)
CHO WOOSUK (KR)
JEONG GOOJIN (KR)
YU JISANG (KR)
CHO WOOSUK (KR)
JEONG GOOJIN (KR)
YU JISANG (KR)
Application Number:
PCT/KR2018/014718
Publication Date:
June 06, 2019
Filing Date:
November 27, 2018
Export Citation:
Assignee:
KOREA ELECTRONICS TECHNOLOGY (KR)
International Classes:
H01M10/0562; H01B1/10; H01M10/052
Foreign References:
| KR20160128670A | 2016-11-08 | |||
| JP2008103146A | 2008-05-01 | |||
| KR101302896B1 | 2013-09-06 | |||
| KR101621831B1 | 2016-05-17 |
Other References:
KOTA, S. ET AL.: "Synthesis, Structure, and Electrochemical Properties of Crystalline Li-P-S-0 Solid Electrolytes", SOLIDE STATE IONICS, vol. 288, 2016, pages 229 - 234, XP029529124, DOI: doi:10.1016/j.ssi.2016.02.002
Attorney, Agent or Firm:
PARK, Chonghan (KR)
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