公开(公告)号：US09698390B2

公开(公告)日：2017-07-04

申请号：US14991301

申请日：2016-01-08

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Insuk Choi ,  Kee-Bum Kim ,  Kyu Hwan Oh

IPC: H01M2/02 ,  H01M10/0525 ,  H01M2/22 ,  H01M10/058 ,  H01B5/14

CPC classification number: H01M2/0202 ,  H01B5/14 ,  H01M2/22 ,  H01M10/0525 ,  H01M10/058 ,  H01M2002/0205 ,  H01M2220/30

Abstract: The present disclosure relates to an extremely deformable structure comprising a basic displacement unit having an embedded form, in which m polygonal basic unit cells are disposed adjacent to each other, m separation parts are formed among the m basic unit cells, a junction part connecting the basic unit cells to each other is formed between the basic unit cells in which the junction part has a junction part pattern in which an external junction part disposed at the outer portion of the basic unit cell and an internal junction part which is not in contact with the outer portion of the basic unit cell are sequentially repeated, and the relative positions of the m basic unit cells are changed according to the junction part pattern, and thus, are activated (here, m is an integer of 4 or 6). Further, the present disclosure relates to a lithium secondary battery made from the extremely deformable structure.

公开(公告)号：US10385467B2

公开(公告)日：2019-08-20

申请号：US15581903

申请日：2017-04-28

Applicant: Korea Institute of Science and Technology ,  Korea University Research and Business Foundation

Inventor： Insuk Choi ,  Young Keun Kim

IPC: B32B15/01 ,  C25D1/00 ,  C25D3/12 ,  C25D3/48 ,  C25D1/04 ,  C25D5/12 ,  C25D11/04 ,  B82B1/00 ,  B82B3/00 ,  C23C28/02

Abstract: A metal nanolaminate includes a plurality of units stacked in a longitudinal direction of the metal nanolaminate. Each of the units includes a first layer and a second layer stacked in the longitudinal direction. The first layer includes a first metal material formed of a first metallic element and the second layer includes the first metal material and a second metal material formed of a second metallic element. Each of the first layer and the second layer has a thickness of at least 5 nm but less than 100 nm in the longitudinal direction.

公开(公告)号：US09991520B2

公开(公告)日：2018-06-05

申请号：US15299638

申请日：2016-10-21

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Insuk Choi ,  Kee Bum Kim ,  Kyu Hwan Oh

IPC: H01M4/70 ,  H01M2/02 ,  H01M4/02

CPC classification number: H01M4/70 ,  H01M2/0275 ,  H01M2/028 ,  H01M2/06 ,  H01M2004/025 ,  H01M2220/30

Abstract: A flexible secondary battery includes an exterior member having an accommodation space inside, a cathode collector and an anode collector located in the accommodation space and spaced apart from each other, a cathode active material portion on the cathode collector, and an anode active material portion on the anode collector. The cathode collector includes a first connection portion extending in a first direction and a plurality of first leg portions protruding from the first connection portion in a second direction different from the first direction. The anode collector includes a second connection portion parallel to the first connection portion and a plurality of second leg portions protruding from the second connection portion toward the first connection portion. The first leg portions and the second leg portions are alternately arranged between the first connection portion and the second connection portion. The cathode active material portion is located only on the first leg portions. The anode active material portion is located on the second connection portion and the second leg portions.

公开(公告)号：US09790929B2

公开(公告)日：2017-10-17

申请号：US15126822

申请日：2015-03-17

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Insuk Choi ,  Yigil Cho

IPC: F03G7/00 ,  H01B5/14 ,  H01B1/12 ,  H01B1/04 ,  H01B1/02

CPC classification number: F03G7/00 ,  A61B2562/125 ,  A61N1/04 ,  B82Y30/00 ,  F03G7/005 ,  H01B1/02 ,  H01B1/04 ,  H01B1/124 ,  H01B5/14

Abstract: A shape changeable material includes a hierarchical structure including a basic displacement unit that includes a basic separation structure and basic unit cells, and a higher level displacement unit located inside the basic unit cell and including higher level unit cells distinguished from each other by a higher level separation structure, in which a separation structure including the basic separation structure and the higher level separation structure includes joints connecting neighboring unit cells to each other. By further forming a coating layer having electric conductivity, a shape changeable electrode includes a supporter that includes a shape changeable material, and the electric conductive coating layer provided on the supporter.