公开(公告)号：US20200381772A1

公开(公告)日：2020-12-03

申请号：US16767725

申请日：2018-11-27

Applicant: Korea Electronics Technology Institute

Inventor： Kyungsu KIM ,  Woosuk CHO ,  Goojin JEONG ,  Jisang YU

IPC: H01M10/0562

Abstract: The present disclosure provides a solid electrolyte including an oxysulfide-based compound represented by LiaPbMcSdOeX (Formula 1) and having excellent stability against moisture, a method of manufacturing the solid electrolyte, and an all-solid-state battery showing superior manufacturing processability. In Formula 1, M is one selected from a group consisting of Zr, Nb, Hf, Ta, Ga, In, Ti, Pb, Bi, Ge, As, Sb, Si, B, Al, and a combination thereof. X is one selected from a group consisting of F, Cl, Br, and I. Also, 6

公开(公告)号：US20230420732A1

公开(公告)日：2023-12-28

申请号：US18339119

申请日：2023-06-21

Applicant: KOREA ELECTRONICS TECHNOLOGY INSTITUTE

Inventor： Keonho PARK ,  Woosuk CHO ,  Jisang YU ,  Goojin JEONG ,  Kyungsu KIM

IPC: H01M10/0562

CPC classification number: H01M10/0562 ,  H01M2300/008

Abstract: A chloride-based solid electrolyte with improved lithium ion conductivity and electrochemical oxidation stability is proposed. The chloride-based solid electrolyte may be represented by Chemical Formula, Li2+aMCl6−bOc, in which some of chloride ions (Cl−) are substituted with oxygen ions (O2−), wherein M denotes metal which is at least one of Zr, Ti, Hf, Fe, or Co, and wherein −0.5

公开(公告)号：US20200328392A1

公开(公告)日：2020-10-15

申请号：US16835464

申请日：2020-03-31

Applicant: Korea Electronics Technology Institute

Inventor： Sanggil WOO ,  Jisang YU ,  Goojin JEONG ,  Jenam LEE

IPC: H01M2/16 ,  H01M10/0525 ,  H01M10/0562 ,  H01M4/134 ,  H01M4/62 ,  H01M4/36

Abstract: The present disclosure provides a separator, a lithium metal negative electrode, and a lithium metal secondary battery which include a solid superacid coating layer. The solid superacid coating layer suppresses a growth of lithium dendrites in a lithium metal secondary battery employing lithium metal as a negative electrode by improving a mobility and a reaction uniformity of lithium at an interface of the lithium metal negative electrode and an electrolyte solution. In the lithium metal secondary battery, the solid superacid coating layer comprising solid superacid material having a porous structure is formed on at least one of the lithium metal negative electrode and the separator.