公开(公告)号：US20220077439A1

公开(公告)日：2022-03-10

申请号：US17083637

申请日：2020-10-29

申请人： Youlchon Chemical Co., Ltd.

发明人： Nok Jung Song ,  Han Chul Park ,  Hee Sik Han ,  Ji Min Lee

IPC分类号： H01M2/08 ,  H01M4/04 ,  C08L23/12 ,  H01M2/02

摘要： Disclosed are a method for manufacturing a secondary battery pouch film having at least an outer layer, a metal layer, a primer layer, and a sealant layer, or at least an outer layer, a metal layer, a primer layer, a melt-extrusion resin layer, and a sealant layer in this order, the method including: a drying process of applying and heating a primer layer composition on the metal layer so as to dry the primer layer composition and cure at least a part of the primer layer composition. The organic solvent-based emulsion composition contains acid-modified polypropylene and a curing agent and has a curing start temperature of 150° C. or lower, preferably 135° C. to 150° C., and a drying process temperature of 150° C. or lower, preferably 135° C. to 150° C. The method is not subjected to a thermal lamination process when laminating sealant layer.

公开(公告)号：US10305131B2

公开(公告)日：2019-05-28

申请号：US15200060

申请日：2016-07-01

申请人： YOULCHON CHEMICAL CO., LTD. ,  KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

发明人： Hyoung-Juhn Kim ,  Jong Hyun Jang ,  So Young Lee ,  Bohyun Kim ,  Sun-Hee Choi ,  Jonghee Han ,  Jin Ho Kim ,  Jong Hyub Park

IPC分类号： H01M8/1027 ,  H01M8/1044 ,  H01M8/1081 ,  C08J5/22 ,  H01M8/1004 ,  H01M8/1018

摘要： Disclosed is an electrolyte membrane for a fuel cell including a polymer blend of a sulfonated polyethersulfone copolymer, hydroxyl group-containing polyethersulfone copolymer and a hydroxyl group-containing sulfonated polyethersulfone copolymer.

公开(公告)号：US20180138480A1

公开(公告)日：2018-05-17

申请号：US15627858

申请日：2017-06-20

申请人： YOULCHON CHEMICAL CO., LTD.

发明人： Hee Sik HAN ,  Kyung Chan KIM ,  Jong Hyub PARK

IPC分类号： H01M2/12 ,  C08G69/00 ,  C08G63/183 ,  H01M10/04 ,  H01M2/08

CPC分类号： H01M2/1288 ,  B32B15/00 ,  C08G63/183 ,  C08G69/00 ,  C08L77/02 ,  H01M2/022 ,  H01M2/0287 ,  H01M2/08 ,  H01M10/0422

摘要： The present specification discloses a cell pouch having excellent formability, which includes a high elongation nylon film. When the high elongation nylon film is stretched in a machine direction (MD), an increment of a tensile strength value with respect to an increment of an elongation value (an increment of tensile strength/an increment of elongation) increasing from 6.7% to 100% is more than 0.04 and less than 0.05, and when the high elongation nylon film is stretched in a transverse direction (TD), an increment of a tensile strength value with respect to an increment of an elongation value increasing from 6.7% to 100% is more than 0.06 and less than 0.08.