The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 09, 2024
Filed:
Aug. 26, 2021
Samsung Sdi Co., Ltd., Yongin-si, KR;
Industry-academia Cooperation Group of Sejong University, Seoul, KR;
Dongrak Sohn, Yongin-si, KR;
Minsang Song, Yongin-si, KR;
Jungmin Han, Yongin-si, KR;
Younggyoon Ryu, Yongin-si, KR;
Kyulin Lee, Yongin-si, KR;
Jeongdoo Yi, Yongin-si, KR;
Sangil Han, Yongin-si, KR;
Keesun Sohn, Yongin-si, KR;
Sunggeun Shim, Yongin-si, KR;
Jinhee Lee, Yongin-si, KR;
SAMSUNG SDI CO., LTD., Yongin-si, KR;
INDUSTRY-ACADEMIA COOPERATION GROUP OF SEJONG UNIVERSITY, Yongin-si, KR;
Abstract
A sulfide solid electrolyte for all-solid secondary batteries, a method of preparing the same, and an all-solid secondary battery, the sulfide solid electrolyte including lithium, phosphorus, sulfur, and a halogen, wherein: the sulfide solid electrolyte has an argyrodite-type crystal structure, a ratio (I/Iratio) of a peak intensity at a 2θ of 29±0.1° to a peak intensity at a 2θ of 30±0.1° is 0.06 or less, the peak intensities being obtained by X-ray diffraction analysis of the sulfide solid electrolyte, and a ratio (I/Iratio) of a peak intensity at a 2θ of 27.1±0.1° to a peak intensity at a 2θ of 30±0.1° is 0.06 or less, the peak intensities being obtained by X-ray diffraction analysis of the sulfide solid electrolyte.