公开(公告)号：US20040086632A1

公开(公告)日：2004-05-06

申请号：US10286443

申请日：2002-10-31

Applicant: Ballard Power Systems Inc.

Inventor： Goran Vlajnic ,  Paul D. Beattie ,  Todd E. Wilke

IPC: B05D005/12 ,  B05D003/12 ,  B05C005/00 ,  B05C015/00

CPC classification number: B01D67/0088 ,  B01D69/00 ,  B01D69/06 ,  H01M4/881 ,  H01M4/8817 ,  H01M4/886 ,  H01M8/1004

Abstract: A method for coating an ion-exchange membrane with a catalyst layer by first heating a surface of the membrane to thereby soften the surface, followed by deposition of a catalyst composition and compaction into the ion-exchange membrane to produce a catalyst-coated membrane. Heating of the ion-exchange membrane may be at a temperature between 20null C. and 50null C., typically between 30null C. and 40null C., above the glass transition temperature of the dry ion-exchange membrane. In one embodiment, the catalyst composition is fluidized in a fluidized bed reactor prior to being deposited on the membrane surface. A system for coating the ion-exchange membrane is also provided. The catalyst-coated membrane is particularly useful in electrochemical fuel cells.

Abstract translation: 通过首先加热膜的表面来使表面软化，然后沉积催化剂组合物并压实到离子交换膜中以制备催化剂涂覆的膜，从而用催化剂层涂覆离子交换膜的方法。 离子交换膜的加热温度可以在干燥离子交换膜的玻璃化转变温度高于20℃至50℃之间，通常在30℃至40℃之间。 在一个实施方案中，催化剂组合物在沉积在膜表面之前在流化床反应器中流化。 还提供了用于涂覆离子交换膜的系统。 催化剂涂覆的膜在电化学燃料电池中特别有用。

公开(公告)号：US20040258979A1

公开(公告)日：2004-12-23

申请号：US10601275

申请日：2003-06-20

Applicant: Ballard Power Systems Inc.

Inventor： Siyu Ye ,  Paul Beattie ,  Todd E. Wilke ,  Shannon R. Hodgson ,  Kyoung Bai ,  Michael V. Lauritzen

IPC: H01M004/88 ,  H01M004/94 ,  H01M008/10

CPC classification number: H01M4/8807 ,  H01M4/8663 ,  H01M4/8889 ,  H01M4/90 ,  H01M8/1004 ,  Y02P70/56

Abstract: A membrane electrode assembly may be made using a one-sided catalyst coated membrane (CCM) wherein only one catalyst layer, either the anode or the cathode, is coated directly on the ion-exchange membrane. In particular, a one-sided CCM may be used where it may not be practicable to coat both sides of the ion-exchange membrane with catalyst layers such as when PTFE is added to the anode catalyst layer to render it reversal tolerant.

Abstract translation: 膜电极组件可以使用其中只有一个催化剂层（阳极或阴极）直接涂覆在离子交换膜上的单面催化剂涂覆膜（CCM）制成。 特别地，可以使用单面CCM，其中可能不可行地用催化剂层涂覆离子交换膜的两侧，例如当将PTFE加入到阳极催化剂层中以使其具有耐逆转性时。