公开(公告)号：KR100352563B1

公开(公告)日：2002-09-12

申请号：KR1020000013526

申请日：2000-03-17

Applicant: 한국과학기술연구원

Inventor： 오인환 ,  하흥용 ,  최형준 ,  심중표 ,  홍성안 ,  임태훈 ,  남석우

IPC: H01M8/10

Abstract: 본 발명에 따라, 퍼플루오로술포닐 할로겐화물 형태의 고분자 전해질 수지를 다양한 방법을 사용하여 다공성 막에 함침시킴으로써, 얇고 이온전도성이 크며 물리적 강도가 큰 복합 고분자 막을 제조하는 방법이 제공된다. 본 발명에 의해서 제조된 복합 고분자 전해질막을 사용하여 고분자 전해질 연료전지를 제작할 경우 전지성능의 감소 없이 고성능의 단위전지 혹은 스택을 제작할 수 있다. 또한, 본 발명에서 개발한 복합 고분자 전해질막 제조방법은 제조 공정이 간단하고, 제조비용이 저렴한 장점이 있다.

公开(公告)号：KR1020010091642A

公开(公告)日：2001-10-23

申请号：KR1020000013526

申请日：2000-03-17

Applicant: 한국과학기술연구원

Inventor： 오인환 ,  하흥용 ,  최형준 ,  심중표 ,  홍성안 ,  임태훈 ,  남석우

IPC: H01M8/10

CPC classification number: Y02P70/56

Abstract: PURPOSE: A method for manufacturing a composite polymer electrolyte membrane for a polymer electrolyte membrane fuel cell is provided to manufacture a composite polymer membrane which is thin, and has high ionic conductivity and physical strength by impregnating a porous membrane with polymer electrolyte resin in a form of perfluorosulfonyl halogen compound using various methods. CONSTITUTION: The method comprises the steps of impregnating an inert porous polymer membrane with a perfluorosulfonyl halogen compound resin; and converting the impregnated perfluorosulfonyl halogen compound into sulfuric acid by sequentially treating high temperature alkaline solution, sulfuric acid solution and ultra pure water on the coated polymer membrane, wherein the porous polymer membrane has a porosity of 30 to 90%, a pore size of 0.05 to 5.0 microns and a thickness of 10 to 150 microns, and is selected from the group consisting of porous polytetrafluoro-ethylene membrane, polypropylene membrane, polyethylene membrane and polyvinylidene fluoride membrane, wherein the impregnating step is carried out in a method selected from the group consisting of a spraying, painting, tape casting, screen painting, dipping, calendering and doctor blade method at a temperature of 230 to 320 deg.C, wherein the method further comprises the steps of coating an electrolyte film on the surface of the manufactured composite electrolyte membrane and heating the electrolyte film coated composite electrolyte membrane in ultra pure water or vapor having a temperature of 80 to 150 deg.C for 1 or more hours, and wherein the electrolyte film is selected from the group consisting of perfluorosulfonyl fluoride and a polymer material in which an alkali metal ion such as sodium or potassium is substituted for perfluorosulfonic acid, perfluorocarboxylic acid, polystyrene sulfonic acid, polystyrene carboxylic acid or a mixture thereof, the coated film has a thickness of 1 to 50 microns, and the method for additionally coating the film is performed by a method selected from the group consisting of spraying, painting, tape casting, screen painting and dipping.

Abstract translation: 目的：提供一种高分子电解质膜燃料电池用复合高分子电解质膜的制造方法，通过以聚合物电解质树脂浸渍多孔膜的方式制造薄型的复合聚合物膜，其离子传导性和物理强度高 的全氟磺酰卤化合物。 构成：该方法包括用全氟磺酰卤化合物树脂浸渍惰性多孔聚合物膜的步骤; 并通过在涂覆的聚合物膜上依次处理高温碱性溶液，硫酸溶液和超纯水将浸渍的全氟磺酰卤化合物转化成硫酸，其中多孔聚合物膜的孔隙率为30-90％，孔径为0.05 至5.0微米，厚度为10至150微米，并且选自多孔聚四氟乙烯膜，聚丙烯膜，聚乙烯膜和聚偏二氟乙烯膜，其中浸渍步骤以选自以下的方法进行： 包括在230〜320℃的温度下进行喷涂，喷漆，胶带浇铸，丝网喷涂，浸渍，压延和刮刀法，其中所述方法还包括以下步骤：在制造的复合材料的表面上涂覆电解质膜 电解质膜并用超纯水或电解质膜加热电解质膜复合电解质膜 蒸汽，其温度为80〜150℃，持续1小时以上，其中，电解质膜选自全氟磺酰氟和其中碱金属离子如钠或钾代替全氟磺酸的聚合物材料 酸，全氟羧酸，聚苯乙烯磺酸，聚苯乙烯羧酸或其混合物，涂膜的厚度为1〜50微米，另外涂膜的方法是通过选自喷雾， 绘画，磁带铸造，丝网画和浸渍。