公开(公告)号：US20220131133A1

公开(公告)日：2022-04-28

申请号：US17511084

申请日：2021-10-26

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Ju Young KIM ,  Young-Gi LEE ,  Seok Hun KANG ,  Dong Ok SHIN ,  Myeong Ju LEE ,  Kwang Man KIM ,  Jimin OH

IPC: H01M4/36 ,  H01M4/38 ,  H01M4/587 ,  H01M4/62

Abstract: Provided is a composite electrode for an all-solid-state secondary battery including a first active material and a second active material, wherein the first active material and the second active material include different materials from each other, and the content of the first active material is 50 vol % to 98 vol % based on the total volume of the first active material and the second active material, the first active material has a volume change rate of 0 vol % to 30 vol % according to volume expansion/contraction during a charging/discharging process, and the second active material has a volume change rate of 35 vol % to 1000 vol % according to volume expansion/contraction during a charging/discharging process.

公开(公告)号：US20230343994A1

公开(公告)日：2023-10-26

申请号：US17730106

申请日：2022-04-26

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE ,  DAEGU GYEONGBUK INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Ju Young KIM ,  Young-Gi LEE ,  Yong Min LEE ,  Seok Hun KANG ,  Kwang Man KIM ,  Ju Mi KIM ,  Joonam PARK ,  Dong Ok SHIN ,  Jimin OH ,  Myeong Ju LEE

IPC: H01M4/62 ,  H01M10/0525 ,  H01M10/0562 ,  H01M4/583 ,  H01M4/58

CPC classification number: H01M10/0562 ,  H01M4/5815 ,  H01M4/583 ,  H01M4/622 ,  H01M10/0525 ,  H01M2004/021

Abstract: The present disclosure relates to an all-solid-state secondary battery, and more particularly, to an all-solid-state secondary battery including a positive electrode, a negative electrode, and a solid electrolyte layer disposed between the positive electrode and the negative electrode. Here, at least one of the positive electrode and the negative electrode includes a sulfide-based active material, the sulfide-based active material has a particle size of about 50 nm to about 5 µm, and the sulfide-based active material has a grain size of about 1 nm to about 10 nm.

公开(公告)号：US20220131181A1

公开(公告)日：2022-04-28

申请号：US17398592

申请日：2021-08-10

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Dong Ok SHIN ,  Young-Gi LEE ,  Myeong Ju LEE ,  Seok Hun KANG ,  Kwang Man KIM ,  Jumi KIM ,  Ju Young KIM ,  Jimin OH

IPC: H01M10/0562 ,  H01M4/04 ,  H01M10/052 ,  H01M10/44

Abstract: Provided is a method for manufacturing a solid secondary battery, wherein the method includes forming a composite electrolyte film, and forming a positive electrode and a negative electrode respectively on both surfaces of the composite electrolyte film. The forming of a composite electrolyte film includes preparing inorganic ion conductor powder coated with an ion resistance layer, removing the ion resistance layer to expose the surface of the inorganic ion conductor powder, mixing the inorganic ion conductor powder with an organic ion conductor and a solvent to prepare a composite electrolyte solution, and removing the solvent from the composite electrolyte solution.

公开(公告)号：US20240170729A1

公开(公告)日：2024-05-23

申请号：US18513187

申请日：2023-11-17

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Dong Ok SHIN ,  Young-Gi LEE ,  JINWOO LEE ,  Myeong Ju LEE ,  Seong Eun JO ,  Jaecheol CHOI

IPC: H01M10/0585 ,  H01M4/134 ,  H01M10/0525 ,  H01M10/0562 ,  H01M10/0569

CPC classification number: H01M10/0585 ,  H01M4/134 ,  H01M10/0525 ,  H01M10/0562 ,  H01M10/0569 ,  H01M2004/021

Abstract: Provided is a separator for a lithium secondary battery. The separator for the lithium secondary battery may include a separator substrate, a first coating layer on the separator substrate, and a second coating layer on the first coating layer, wherein the first coating layer includes a solid electrolyte, and the second coating layer includes a lithium compound.

公开(公告)号：US20230125653A1

公开(公告)日：2023-04-27

申请号：US17953936

申请日：2022-09-27

Applicant: Electronics and Telecommunications Research Institute

Inventor： Dong Ok SHIN ,  Myeong Ju LEE ,  Young-Gi LEE ,  Seok Hun KANG ,  Ju Young KIM ,  Jimin OH

IPC: H01M10/056 ,  H01M10/0525 ,  H01M10/0585 ,  H01M4/62 ,  H01M4/04

Abstract: Disclosed is a composite electrode for an all-solid-state secondary battery. The composite electrode includes a composite positive electrode and a composite negative electrode, wherein each of the composite positive electrode and the composite negative electrode includes an electrode active material, and an ion-conducting composite binder configured to include an inorganic ion conductor for an ion movement path and an organic ion conductor for binding of the electrode active material.