公开(公告)号：US10862151B2

公开(公告)日：2020-12-08

申请号：US15744640

申请日：2016-07-29

申请人： NATIONAL INSTITUTE FOR MATERIALS SCIENCE

发明人： Jedeok Kim ,  Yaojian Zhang

IPC分类号： H01M8/1027 ,  H01M8/1032 ,  C08G75/23 ,  C08G65/38 ,  C08L81/06 ,  H01M4/88 ,  H01M8/1039 ,  H01M8/1018 ,  H01M4/86 ,  H01M8/1023 ,  C08L45/00 ,  C08L71/12 ,  C08L81/08 ,  G01R33/46 ,  H01M8/1025 ,  H01M8/103

摘要： The present invention addresses the problem of providing a crosslinked film and a hydrocarbon-based proton conducting solid electrolyte having a proton conductivity equal to that of a perfluorosulfonate ion exchange polymer. Disclosed as a means for solving this problem is a proton conducting polymer electrolyte which is composed of a sulfonated polyphenyl compound having a plurality of repeating units, and wherein two or more (for example, four or six) sulfonic groups are introduced into one repeating unit on average. The sulfonated polyphenyl compound may be a polymer or copolymer having a skeleton structure selected from among a polyaryl sulfide, a polyaryl ether, a polyarylsulfone, a polyarylketone and a polyaryl hexafluoroisopropylidene. A proton conducting solid polymer electrolyte membrane is able to be produced by shaping this proton conducting polymer electrolyte into a film form and crosslinking this proton conducting polymer electrolyte via sulfonic groups.