Abstract: One aspect of the present invention provides a separator including a porous substrate, and a heat-resistant layer disposed on at least one surface of the porous substrate and including inorganic particles, wherein the ratio (F2/F1) of air permeability (F2, sec/100 mL) in a curved surface with a radius of curvature of 10 mm of the separator to the air permeability (F1, sec/100 mL) in a flat surface of the separator is 1.5 or less, and an electrochemical device including the same.
Type:
Application
Filed:
July 31, 2023
Publication date:
November 23, 2023
Applicants:
W-SCOPE KOREA CO.,LTD., W-SCOPE CHUNGJU PLANT CO., LTD
Inventors:
Byung Hyun KIM, Dae Bog PARK, Seok Hyeon GONG, Kwang Ho CHOI, Jeong Rae KIM
Abstract: One aspect of the present invention provides a coating composition for a separator including a water-soluble polymer and a water-insoluble polymer, wherein the water-insoluble polymer includes solid particles and annular hollow particles, and an electrode-adhesive separator, which includes an adhesive layer made of the coating composition.
Type:
Application
Filed:
July 31, 2023
Publication date:
November 23, 2023
Applicants:
W-SCOPE KOREA CO.,LTD., W-SCOPE CHUNGJU PLANT CO., LTD
Inventors:
Byung Hyun KIM, Dae Bog PARK, Seok Hyeon GONG, Kwang Ho CHOI, Jeong Rae KIM
Abstract: One aspect of the present invention provides a method of manufacturing a separator including: (a) obtaining a laminate by laminating a first porous support and a second porous support; (b) forming a functional layer by applying a composition including a binder and a solvent on both sides of the laminate and drying the composition; and (c) dividing the laminate into two separators along an interface formed by the lamination, and a separator manufactured using the method.
Type:
Application
Filed:
July 1, 2022
Publication date:
June 29, 2023
Applicants:
W-SCOPE KOREA CO., LTD., W-SCOPE CHUNGJU PLANT CO., LTD.
Inventors:
Won Keun CHOI, Dae Bog PARK, Byung Tak JUNG, Byung Hyun KIM
Abstract: One aspect of the present invention provides a stretching apparatus for manufacturing a separator including a first stretching machine and a second stretching machine arranged in parallel with each other, in which the first stretching machine includes a plurality of first unit sections having different stretching ratios, and the second stretching machine includes a plurality of second unit sections having different stretching ratios, the overall stretching ratio by each of the first stretching machine and the second stretching machine is the same each other, and at least one stretching ratio of the first unit section and at least one stretching ratio of the second unit section are different from each other and a method of manufacturing a separator using the same.
Type:
Application
Filed:
July 1, 2022
Publication date:
June 29, 2023
Applicants:
W-SCOPE KOREA CO., LTD., W-SCOPE CHUNGJU PLANT CO., LTD.
Inventors:
Kyoung Sun RYU, Won Keun CHOI, Kwang Ho CHOI, Pyung Yong PARK, Byung Hyun KIM
Abstract: Disclosed are a separator that includes fibrils including a polyolefin; and bond structures generated by reacting at least some of a first radical formed on surfaces of the fibrils by a photoreactive material and a second radical formed in the photoreactive material, and a method of manufacturing the separator.
Type:
Grant
Filed:
January 10, 2020
Date of Patent:
January 17, 2023
Assignees:
W-SCOPE KOREA CO., LTD., W-SCOPE CHUNGJU PLANT CO., LTD.
Inventors:
Byung Hyun Kim, Hee Min Cho, Pyung Yong Park, Gi Won Yoo, Yeong Hoon Choi, Won Keun Choi
Abstract: Provided is a separator that includes a matrix including a polyolefin having a weight average molecular weight (Mw) of 250,000 to 450,000 and a molecular weight distribution (Mw/Mn) of 3 to 7; and a silane-modified polyolefin crosslinked in the matrix, and a method of manufacturing the same.
Type:
Grant
Filed:
March 19, 2019
Date of Patent:
June 21, 2022
Assignees:
W-SCOPE KOREA CO., LTD., W-SCOPE CHUNGJU PLANT CO., LTD.
Inventors:
Byung Hyun Kim, Hee Min Cho, Pyung Yong Park, Gi Won Yoo
Abstract: In one exemplary embodiment of the present invention, there are provided a method of hydrophilizing a porous membrane which includes treating a porous membrane with plasma in the presence of a mixed gas containing sulfur dioxide (SO2) and oxygen (O2), and a method of preparing an ion-exchange membrane using the same.
Type:
Grant
Filed:
October 11, 2019
Date of Patent:
September 7, 2021
Assignees:
W-SCOPE KOREA CO., LTD., W-SCOPE CHUNGJU PLANT CO., LTD.
Inventors:
Kyung Seok Yoon, Byung Hyun Kim, Won Sun Ryoo, Myung Su Jung, Bom Yi Lee
Abstract: Disclosed are a separator that includes fibrils including a polyolefin; and bond structures generated by reacting at least some of a first radical formed on surfaces of the fibrils by a photoreactive material and a second radical formed in the photoreactive material, and a method of manufacturing the separator.
Type:
Application
Filed:
January 10, 2020
Publication date:
October 29, 2020
Applicants:
W-SCOPE KOREA CO., LTD., W-SCOPE CHUNGJU PLANT CO., LTD.
Inventors:
Byung Hyun KIM, Hee Min CHO, Pyung Yong PARK, Gi Won YOO, Yeong Hoon CHOI, Won Keun CHOI