公开(公告)号：US20040241520A1

公开(公告)日：2004-12-02

申请号：US10751138

申请日：2003-12-30

Applicant: Korea Institute of Science and Technology

Inventor： Heung-Yong Ha ,  Soon Jong Kwak ,  Daejin Kim ,  Juno Shim ,  In-Hwan Oh ,  Seong-Ahn Hong ,  Tae-Hoon Lim ,  Suk-Woo Nam

IPC: H01M008/10 ,  C08J005/22 ,  H01M004/88 ,  B05D005/12

CPC classification number: C08J5/2287 ,  C08J2327/18 ,  H01M4/881 ,  H01M8/04197 ,  H01M8/1023 ,  H01M8/1025 ,  H01M8/103 ,  H01M8/1039 ,  H01M8/1055 ,  H01M8/1069 ,  H01M2300/0094 ,  Y02E60/523 ,  Y02P70/56

Abstract: The present invention relates to a method for manufacturing composite polymer electrolyte membranes coated with inorganic thin films for fuel cells using a plasma enhanced chemical vapor deposition (PECVD) method or a reactive sputtering method, so as to reduce the crossover of methanol through polymer electrolyte membranes for fuel cells and enhance the performance of the fuel cells. The manufacturing method of composite polymer electrolyte membranes coated with inorganic thin films for fuel cells according to the present invention is characterized to obtain composite membranes by coating the surface of commercial composite polymer electrolyte membranes for fuel cells with inorganic thin films using a PECVD method or a reactive sputtering method. The inorganic materials to form the inorganic thin films are chosen one or more from the group comprising silicon oxide (SiO2), titanium oxide (TiO2), zirconium oxide (ZrO2), zirconium phosphate (Zr(HPO4)2), zeolite, silicalite, and aluminum oxide (Al2O3). The present invention, by coating the polymer electrolyte membranes for fuel cells with inorganic thin films via a PECVD method or a reactive sputtering method, reduces the methanol crossover sizably without seriously reducing the ionic conductivity of polymer electrolyte membranes, thereby, when applied to fuel cells, realizes a high performance of fuel cells.

Abstract translation: 本发明涉及使用等离子体增强化学气相沉积（PECVD）法或反应溅射法制造涂覆有燃料电池的无机薄膜的复合聚合物电解质膜的方法，从而减少甲醇通过聚合物电解质膜的交叉 用于燃料电池并增强燃料电池的性能。 根据本发明的用于燃料电池的无机薄膜的复合高分子电解质膜的制造方法的特征在于，通过使用PECVD法或无机薄膜将无机薄膜涂覆用于燃料电池的市售复合高分子电解质膜的表面，来获得复合膜 反应溅射法。 形成无机薄膜的无机材料选自氧化硅（SiO 2），氧化钛（TiO 2），氧化锆（ZrO 2），磷酸锆（Zr（HPO 4）2），沸石，硅沸石， 和氧化铝（Al 2 O 3）。 本发明通过PECVD法或反应溅射法通过用无机薄膜涂覆燃料电池用聚合物电解质膜，可以在不严重降低聚合物电解质膜的离子电导率的情况下，相应地降低甲醇交换，从而当应用于燃料电池 实现燃料电池的高性能化。