公开(公告)号：US20140329169A1

公开(公告)日：2014-11-06

申请号：US14262953

申请日：2014-04-28

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Hyoung-Juhn KIM ,  Yeon Hye KWON ,  Jun Young HAN ,  Hyung Chul HAM ,  Jong Hyun JANG ,  Suk Woo NAM ,  Eun Ae CHO ,  Sung Jong YOO ,  Chang Won YOON

IPC: H01M8/10

CPC classification number: H01M8/1027 ,  C08G75/00 ,  C08G75/23 ,  C08J5/22 ,  C08J2371/10 ,  C08L81/06 ,  H01B1/122 ,  H01M8/1072 ,  H01M2008/1095 ,  H01M2300/0082 ,  Y02P70/56

Abstract: Provided are a hydroxyl group-containing sulfonated polyethersulfone copolymer, a method for preparing the same, a polymer electrolyte membrane for fuel cell, and a membrane electrode assembly including the same. More particularly, provided are a hydroxyl group-containing sulfonated polyethersulfone electrolyte membrane and a membrane electrode assembly including the same, which are applied to a fuel cell to provide significantly higher ion conductivity as compared to the sulfonated polymer electrolyte membranes according to the related art. The hydroxyl group-containing sulfonated polyethersulfone copolymer electrolyte membrane shows significantly higher ion conductivity under various temperature and humidity conditions as compared to the sulfonated polymer electrolyte membranes according to the related art. Therefore, it is expected that the hydroxyl group-containing sulfonated polyethersulfone copolymer substitutes for expensive fluoropolymer electrolyte membranes such as Nafion.

Abstract translation: 本发明提供含有羟基的磺化聚醚砜共聚物，其制备方法，燃料电池用高分子电解质膜和包含该羟基的膜电极组合物。 更具体地说，与根据现有技术的磺化聚合物电解质膜相比，提供了含有羟基的磺化聚醚砜电解质膜和包含该羟基的磺化聚醚砜电解质膜的膜电极组合物，其被应用于燃料电池以提供显着更高的离子传导性。 与根据现有技术的磺化聚合物电解质膜相比，含羟基的磺化聚醚砜共聚物电解质膜在各种温度和湿度条件下显示出显着更高的离子传导性。 因此，预期含羟基的磺化聚醚砜共聚物代替昂贵的含氟聚合物电解质膜如Nafion。