Title:
POROUS ARAMID NANOFIBER THIN FILM, METHOD FOR MANUFACTURING SAME, AND SECONDARY BATTERY COMPRISING SAME
Document Type and Number:
WIPO Patent Application WO/2022/103091
Kind Code:
A1
Abstract:
Provided are a porous aramid nanofiber thin film, a method for manufacturing same, and a secondary battery comprising same. The method for manufacturing the porous aramid nanofiber thin film comprises forming an aramid nanoseed suspension layer by applying an aramid nanoseed suspension on a substrate. The suspension layer is immersed in an alcohol-containing protic solvent to cause primary solvent exchange to thereby manufacture an aramid nanofiber thin film through self-assembly. The aramid nanofiber thin film is immersed in water to cause secondary solvent exchange to thereby form an aramid nanofiber hydrogel thin film. The aramid nanofiber hydrogel thin film is freeze-dried to manufacture a porous aramid nanofiber thin film.
Inventors:
YEOM BONG JUN (KR)
SON JEONG GON (KR)
JUNG A RUM (KR)
KIM NA YEON (KR)
SON JEONG GON (KR)
JUNG A RUM (KR)
KIM NA YEON (KR)
Application Number:
PCT/KR2021/016090
Publication Date:
May 19, 2022
Filing Date:
November 08, 2021
Export Citation:
Assignee:
IUCF HYU (KR)
KOREA INST SCI & TECH (KR)
KOREA INST SCI & TECH (KR)
International Classes:
B01D71/56; B01D67/00; H01M50/403; H01M50/411
Foreign References:
| KR20180095939A | 2018-08-28 | |||
| JP2011068883A | 2011-04-07 | |||
| KR100971107B1 | 2010-07-20 | |||
| KR20110136745A | 2011-12-21 |
Other References:
DU LEI, ISAO TABATA, KAZUMASA HIROGAKI: "A New Nanoporous Aramid Fiber Aerogel", SEN`I KAKKAISHI, vol. 70, no. 9, 1 January 2014 (2014-01-01), pages 197 - 202, XP055930061
Attorney, Agent or Firm:
E-SANG PATENT & TRADEMARK LAW FIRM (KR)
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