公开(公告)号：US12005612B2

公开(公告)日：2024-06-11

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 ,  B32B7/022 ,  B32B37/14 ,  B32B38/00 ,  B32B38/08 ,  H05K1/02 ,  H05K1/03

CPC classification number: B29C35/02 ,  B29C35/002 ,  B32B7/022 ,  B32B37/144 ,  B32B38/08 ,  B32B38/145 ,  H05K1/0283 ,  H05K1/03 ,  B29K2995/0094 ,  B32B2038/0076 ,  B32B2307/51 ,  B32B2319/00

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：US20200343429A1

公开(公告)日：2020-10-29

申请号：US16555100

申请日：2019-08-29

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Seungjun Chung ,  Phillip Lee ,  Min Park ,  Sang-Soo Lee ,  Heesuk Kim ,  Jeong Gon Son ,  Jong Hyuk Park ,  Tae Ann Kim ,  Seongkwon Hwang ,  Inho Jeong

IPC: H01L35/12 ,  H01L35/34 ,  H01L35/02

Abstract: Disclosed is a thermoelectric device in which a separate interlayer is inserted between a thermoelectric leg and an electrode to reduce the contact resistance between the thermoelectric leg and the electrode, so that the interlayer serves as a tunneling path between the thermoelectric leg and the electrode, facilitating the charge movements between the two materials, and the thermoelectric device according to an embodiment includes a substrate, a thermoelectric leg positioned on the substrate, an interlayer positioned on the thermoelectric leg, and including a plurality of interlayer materials chemically bonded with the thermoelectric leg, and an electrode positioned on the interlayer, and electrically connected to the thermoelectric leg.

公开(公告)号：US10435520B2

公开(公告)日：2019-10-08

申请号：US15833446

申请日：2017-12-06

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Jong Hyuk Park ,  Min Park ,  Sang-Soo Lee ,  Heesuk Kim ,  Jeong Gon Son ,  Phillip Lee ,  Ji-Won You ,  Young Mo Lee

IPC: C08J3/20 ,  C08J3/28 ,  C08K3/04 ,  C08K7/06 ,  C08K7/24

Abstract: A polyamide/hybrid carbon filler composite is disclosed. The composite includes a polyamide as a matrix and a hybrid carbon filler dispersed in and bonded to the polyamide matrix. The hybrid carbon filler is composed of a nano carbon and a carbon fiber. Also disclosed is a method for preparing the polyamide/hybrid carbon filler. The method includes simultaneously subjecting a mixture of a polyamide and a hybrid carbon filler to mechanofusion and plasma treatments.

公开(公告)号：US12051794B2

公开(公告)日：2024-07-30

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 ,  H01M10/0525

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：US11866623B2

公开(公告)日：2024-01-09

申请号：US16460237

申请日：2019-07-02

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Heesuk Kim ,  Youngpyo Ko ,  Min Park ,  Sang-Soo Lee ,  Jeong Gon Son ,  Jong Hyuk Park ,  Seungjun Chung ,  Tae Ann Kim

IPC: C09J9/02 ,  C08K3/04 ,  C09J183/04 ,  C08K3/08

CPC classification number: C09J9/02 ,  C08K3/041 ,  C08K3/042 ,  C08K3/045 ,  C09J183/04 ,  C08K2003/085 ,  C08K2003/0806 ,  C08K2003/0812 ,  C08K2003/0843 ,  C08K2003/0856 ,  C08K2003/0862 ,  C08K2003/0881 ,  C08K2003/0887 ,  C08K2201/001 ,  C09J2467/006 ,  C09J2475/006 ,  C09J2479/086 ,  C09J2483/006

Abstract: A conductive polymer composite for adhesion to a flexible substrate contains a polymer adhesive containing a curable polymer and a curing agent; and a conductive filler containing a metal and a carbonaceous material dispersed in the polymer adhesive. The conductive polymer composite is suitable for application to not only the human body but also other objects having irregular surface. In addition, due to enhanced adhesive strength of the conductive polymer composite to the flexible substrate, the reduction in conductivity or conductivity breakdown caused by external stress can be prevented and flexibility and stretchability can be improved.

公开(公告)号：US11299655B2

公开(公告)日：2022-04-12

申请号：US16460195

申请日：2019-07-02

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Heesuk Kim ,  Youngpyo Ko ,  Min Park ,  Sang-Soo Lee ,  Jeong Gon Son ,  Jong Hyuk Park ,  Seungjun Chung ,  Tae Ann Kim

IPC: C09J9/02 ,  C09J7/25 ,  C09J7/38 ,  C09J11/04 ,  G01D5/24 ,  C09J7/30 ,  H01B5/16 ,  G06F3/041 ,  C08K3/22

Abstract: A highly-dielectric, elastic structure includes an elastic body that is highly-dielectric and includes a polymer matrix that including 1000 pbw of a polydimethylsiloxane (PDMS) base and 100 pbw of a PDMS curing agent, and has a tensile strength of 0.1 to 10 MPa; and 22.4 pbw of carbon black that is surface-treated with octadecyltrimethoxysilane (ODTMS) in an amount of at least 0.707 mmol per 22.4 pbw of the carbon black, and that is dispersed in the polymer matrix and cured; and an adhesive electrode that is stretchable, that is disposed on the elastic body, and that includes a polymer adhesive including a 500 pbw of a thermosetting silicone-based polymer adhesive including a curable polymer and a curing agent; and a conductive filler comprising 500 pbw of silver particles and 4000 pbw of a carbonaceous material that is a multi-walled carbon nanotube that are dispersed in the polymer adhesive and cured.

公开(公告)号：US11286334B2

公开(公告)日：2022-03-29

申请号：US16788519

申请日：2020-02-12

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Jong Hyuk Park ,  Min Park ,  Tae Ann Kim ,  Jongwon Kim ,  Sung Min Jee

IPC: C07B61/00 ,  C07C277/00 ,  C07D247/02 ,  C08G59/24 ,  C08G59/50 ,  C09J163/00

Abstract: A method for preparing a latent hardener includes, in the order recited, introducing a hardener into a dry mixer that is a high-energy-type mixer; injecting carbon dioxide gas or an inert gas into the dry mixer; and mechanochemically deactivating only a surface of the hardener using the dry mixer. The hardener may be an amine-based adduct, an imidazole-based adduct, dicyandiamide, a dihydride-based compound, a dichlorophenyl dimethylurea compound and combinations thereof. The inert gas may be helium, nitrogen, argon, neon, krypton, and combinations thereof.

公开(公告)号：US11245061B2

公开(公告)日：2022-02-08

申请号：US16555100

申请日：2019-08-29

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Seungjun Chung ,  Phillip Lee ,  Min Park ,  Sang-Soo Lee ,  Heesuk Kim ,  Jeong Gon Son ,  Jong Hyuk Park ,  Tae Ann Kim ,  Seongkwon Hwang ,  Inho Jeong

IPC: H01L35/12 ,  H01L35/02 ,  H01L35/34

Abstract: Disclosed is a thermoelectric device in which a separate interlayer is inserted between a thermoelectric leg and an electrode to reduce the contact resistance between the thermoelectric leg and the electrode, so that the interlayer serves as a tunneling path between the thermoelectric leg and the electrode, facilitating the charge movements between the two materials. The thermoelectric device according to an embodiment includes a substrate; at least one thermoelectric leg positioned on the substrate; an interlayer positioned on each thermoelectric leg of the at least one thermoelectric leg and including a plurality of interlayer materials that are chemically bonded with a respective thermoelectric leg; and an electrode positioned on each interlayer and electrically connected to the respective thermoelectric leg, wherein the plurality of interlayer materials of each respective interlayer is arranged in a shape of a brush.

公开(公告)号：US20200181463A1

公开(公告)日：2020-06-11

申请号：US16460237

申请日：2019-07-02

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Heesuk KIM ,  Youngpyo Ko ,  Min Park ,  Sang-Soo Lee ,  Jeong Gon Son ,  Jong Hyuk Park ,  Seungjun Chung ,  Tae Ann Kim

IPC: C09J9/02 ,  C09J183/04 ,  C08K3/04

Abstract: A conductive polymer composite for adhesion to a flexible substrate contains a polymer adhesive containing a curable polymer and a curing agent; and a conductive filler containing a metal and a carbonaceous material dispersed in the polymer adhesive. The conductive polymer composite is suitable for application to not only the human body but also other objects having irregular surface. In addition, due to enhanced adhesive strength of the conductive polymer composite to the flexible substrate, the reduction in conductivity or conductivity breakdown caused by external stress can be prevented and flexibility and stretchability can be improved.

公开(公告)号：US10510463B2

公开(公告)日：2019-12-17

申请号：US15824135

申请日：2017-11-28

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Jeong Gon Son ,  Sang-Soo Lee ,  Heesuk Kim ,  Jong Hyuk Park ,  Wan Ki Bae ,  Hyo Won Kwon

IPC: H01B5/14 ,  H01B13/00 ,  H01B1/22

Abstract: A wavy metal nanowire network thin film, a stretchable transparent electrode including the metal nanowire network thin film, and a method for forming the metal nanowire network thin film. More specifically, it relates to a wavy nanowire network structure based on straight metal nanowires, a method for producing the nanowire network structure, and a flexible electrode including the wavy metal nanowire structure. The flexible electrode of the present invention is transparent and stretchable and exhibits stable performance even when subjected to various deformations.