公开(公告)号：US20230216017A1

公开(公告)日：2023-07-06

申请号：US17873598

申请日：2022-07-26

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Jeong Gon SON ,  Jong Hyuk PARK ,  Sang-Soo LEE ,  Heesuk KIM ,  Seungjun CHUNG ,  Tae Ann KIM ,  Jae Hong KIM

IPC: H01M4/04

CPC classification number: H01M4/0404 ,  H01M10/0525

Abstract: The present disclosure relates to a stretchable electrode, a method for preparing the same and a stretchable battery including the stretchable electrode. The stretchable electrode of the present disclosure, which is prepared by crosslinking a hydroxyl-functionalized fluorine-based polymer binder physically using a ketone-based solvent or chemically with a crosslinking agent, has superior stretchability, has improved interfacial adhesivity to an active material through Fenton's oxidation, exhibits improved stability under various mechanical deformations of the electrode such as stretching, etc. and can uniformly maintain the electrical conductivity, battery capacity and charge-discharge performance of the electrode.
In addition, the stretchable battery of the present disclosure, which includes the stretchable electrode, a stretchable current collector, a stretchable separator and a stretchable encapsulant, has improved stretchability and superior battery stability under various deformations due to high degree of freedom of structures and materials. In addition, the stretchable battery of the present disclosure can be prepared as a fiber battery by printing an electrode and a current collector sequentially on both sides of a stretchable fabric, which can be worn, e.g., around sleeves due to superior stretchability and high structural degree of freedom and retains high battery performance and mechanical stability even under mechanical deformation. Therefore, it can be applied to a mobile display for a health monitoring system or a smartwatch.

公开(公告)号：US20220161517A1

公开(公告)日：2022-05-26

申请号：US17177943

申请日：2021-02-17

Applicant: Korea Institute of Science and Technology

Inventor： Phillip LEE ,  Seungjun CHUNG ,  Jeong Gon SON ,  Jai Kyeong KIM ,  Heesuk KIM ,  Suk Joon HWANG ,  Byung Soo KANG

IPC: B32B7/022 ,  H05K1/02 ,  H05K1/03

Abstract: Disclosed is a method of manufacturing a stretchable substrate according to various embodiments of the present disclosure for realizing the above-described objectives. The method may include generating an auxetic including a plurality of unit structures and adhering one or more elastic sheets to one surface of the auxetic.

公开(公告)号：US20220161462A1

公开(公告)日：2022-05-26

申请号：US17177856

申请日：2021-02-17

Applicant: Korea Institute of Science and Technology

Inventor： Seungjun CHUNG ,  Phillip LEE ,  Seung Hyun LEE ,  Seong Kwon HWANG ,  Hyunjoo CHO ,  Jeong Gon SON ,  Jai Kyeong KIM ,  Heesuk KIM ,  Sang-Soo LEE ,  Tae Ann KIM ,  Jong Hyuk PARK

IPC: B29C35/02 ,  B29C35/00 ,  B29C59/02 ,  B29C59/00

Abstract: Disclosed is a method of manufacturing a transparent stretchable substrate according to various embodiments of the present disclosure. The method may include generating a substrate part formed of an elastic material, generating an auxetic including a plurality of unit structures on the substrate part, and generating a fixing part on the substrate part on which the auxetic is generated.

公开(公告)号：US20190035853A1

公开(公告)日：2019-01-31

申请号：US15817644

申请日：2017-11-20

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Sang-Soo LEE ,  Jong Hyuk PARK ,  Jeong Gon SON ,  Minsung KIM ,  Young Jin KIM ,  Heesuk KIM

IPC: H01L27/24 ,  G11C13/00 ,  H01L45/00

Abstract: A resistance-switchable material containing: an insulating support; and a complementary resistance switchable filler dispersed in the insulating support, wherein the complementary resistance switchable filler has a spherical core-shell structure containing: a spherical conductive core containing a conductive material; and an insulating shell formed on the surface of the core and containing an insulating material. The resistance-switchable material is capable of exhibiting complementary resistive switching characteristics with improved reliability and stability as symmetrical uniform filament current paths are formed in respective resistive layers adjacent to two electrodes with the conductive core of the complementary resistance-switchable filler at the center due to the electric field control effect by the spherical complementary resistance-switchable filler

公开(公告)号：US20170155044A1

公开(公告)日：2017-06-01

申请号：US15229449

申请日：2016-08-05

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Jong Hyuk PARK ,  Sang-Soo LEE ,  Heesuk KIM ,  Jeong Gon SON ,  Wan Ki BAE ,  Keun-Young SHIN ,  Young Jin KIM

IPC: H01L45/00

CPC classification number: H01L45/16 ,  H01L45/04 ,  H01L45/1233 ,  H01L45/1273 ,  H01L45/146 ,  H01L45/1616 ,  H01L45/1625

Abstract: Disclosed are nonvolatile resistance random access memory device and a fabrication method thereof. The nonvolatile resistance random access memory device includes a lower electrode, an insulator film formed on a surface of the lower electrode, and an upper electrode formed over the insulator film, the lower electrode includes a base, and a thin metal layer formed on a surface of the base, and the lower electrode has a 3D structural pattern in which a plurality of protruding structures is repeatedly arranged at a constant interval. The 3D metal structures have a shape selected from among a pyramid (quadrangular pyramid), a trapezoidal pyramid (pyramid with a flat top), a pillar, and a prism. Uniform conductive filaments are formed via the space between the 3D metal structures, whereby the nonvolatile resistance random access memory device is capable of being driven at a low operating voltage and has long-term stability.