公开(公告)号：US11329314B2

公开(公告)日：2022-05-10

申请号：US16596659

申请日：2019-10-08

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Hyoung chul Kim ,  Byung Kook Kim ,  Hun Gi Jung ,  Kyung Yoon Chung ,  Jong Ho Lee ,  Hae Weon Lee ,  Ji Won Son ,  Eu Deum Jung ,  Ji Su Kim ,  Sung Jun Choi

IPC: H01M4/02 ,  H01M10/0562 ,  H01M10/0525 ,  C01B25/14

Abstract: Disclosed are a sulfide-based solid electrolyte imparted with improved lithium ion conductivity and a method of preparing the same. More particularly, disclosed is a sulfide-based solid electrolyte containing a lithium element (Li), a phosphorus element (P), a sulfur element (S) and a halogen element (X), and including a crystal phase of an argyrodite crystal structure, wherein a molar ratio (X/P) of the halogen element (X) to the phosphorus element (P) is higher than 1.

公开(公告)号：US20180323469A1

公开(公告)日：2018-11-08

申请号：US15830224

申请日：2017-12-04

Applicant: Hyundai Motor Company ,  Kia Motors Corporation ,  Korea Institute of Science and Technology

Inventor： Jae Min Lim ,  Ju Yeong Seong ,  Yong Jun Jang ,  Hun Gi Jung ,  Hyoung Chul Kim ,  Eu Deum Jung ,  Bin Na Yoon

IPC: H01M10/0562 ,  H01M10/0525 ,  H01M4/525 ,  H01M4/505 ,  H01M4/62 ,  H01M10/058

CPC classification number: H01M10/0562 ,  H01M4/505 ,  H01M4/525 ,  H01M4/625 ,  H01M10/0525 ,  H01M10/058 ,  H01M2300/0068

Abstract: A method for preparing a solid electrolyte for an all-solid state battery, may include obtaining a slurry by dispersing a first raw material comprising lithium sulfide; and a second raw material selected from the group consisting of silicon sulfide, phosphorus sulfide, germanium sulfide, boron sulfide, and a combination thereof in a solvent; and drying the slurry.

公开(公告)号：US10020536B2

公开(公告)日：2018-07-10

申请号：US15404708

申请日：2017-01-12

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Hyoung Chul Kim ,  Sung Jun Choi ,  Jeong Hun Kim ,  Wo Dum Jung ,  Hun Gi Jung ,  Ji Won Son ,  Jong Ho Lee ,  Byung Kook Kim ,  Hae Weon Lee

IPC: H01M10/052 ,  H01M10/0562

CPC classification number: H01M10/0562 ,  C01B17/20 ,  C01B17/22 ,  H01M2300/0068

Abstract: A method for preparing a sulfide-based solid electrolyte which is stable upon exposure to the air is provided. Specifically, a stabilization layer is formed on the surface of a sulfide-based solid electrolyte particle through treatment with a reactive gas.The sulfide-based solid electrolyte with superior air stability can be obtained because oxidation or reduction reactions with water, etc. in the air occur on the stabilization layer rather than on the sulfide-based solid electrolyte particle.