POLYMER ELECTROLYTE FILM

• Main Authors: INOUE YUICHI, MIYAZAKI KUON, URAOKA NOBUKI, KIKUCHI KENTARO, INO TADASHI, CHAEN SHINICHI, KONISHI TOMOHISA
• Format: Patent
• Language: English; Korean
• Published: 29.07.2016
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; BASIC ELECTRIC ELEMENTS; CHEMISTRY; COMPOSITIONS BASED THEREON; ELECTRICITY; GENERAL PROCESSES OF COMPOUNDING; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY; THEIR PREPARATION OR CHEMICAL WORKING-UP; WORKING-UP

우수한 강도를 갖고, 치수 변화가 작고, 막 저항이 작은 고분자 전해질막을 제공한다. 다공질막의 공극에 고분자 전해질이 함유되어 이루어지는 고분자 전해질막이며, 상기 다공질막은 테트라플루오로에틸렌과 에틸렌성 공단량체를 공중합함으로써 얻어진 폴리테트라플루오로에틸렌을 연신해서 얻어지는 것이고, 상기 다공질막의 평균 공경은 0.20㎛보다 큰 것을 특징으로 하는 고분자 전해질막이다. The present invention provides a polymer electrolyte membrane having excellent strength, a small dimensional change, and a low membrane resistance. The polymer electrolyte membrane includes a porous film having pores and a polymer electrolyte contained in the pores. The porous film is obtained by copolymerizing tetrafluoroethylene and an ethylenic comonomer to provide polytetrafluoroethylene and then stretching the polytetrafluoroethylene. The porous film has an average pore size of greater than 0.20 µm.