公开(公告)号：US20150288005A1

公开(公告)日：2015-10-08

申请号：US14435676

申请日：2012-10-19

Applicant: Ballard Power Systems Inc.

Inventor： Timothy W. Patterson ,  Thomas H. Madden ,  Robert M. Darling ,  Glenn M. Allen

IPC: H01M8/04 ,  H01M8/10

CPC classification number: H01M8/04029 ,  H01M8/0213 ,  H01M8/0221 ,  H01M8/0228 ,  H01M8/0254 ,  H01M8/026 ,  H01M8/0267 ,  H01M8/0297 ,  H01M8/1004 ,  H01M8/1018 ,  H01M8/24 ,  H01M8/241 ,  H01M2008/1095 ,  H01M2250/20 ,  H01M2300/0082 ,  Y02T90/32

Abstract: Fuel cell reactant flow field plates (22, 32) are formed by extruding long sections (17, 25) of carbonaceous material, either with straight grooves (18, 28) formed by the extrusion die, or by end milling or arbor milling, and then cut to a proper size, including cuts in which the edges of the plates are at an angle with respect to the grooves. Cooler plates are formed of water-permeable material (39) in which hydrophobic material (40) is impregnated so as to define coolant channels (42-44) with inlets and outlets (47, 49). A two-layer cooler plate is formed by stamping voids in one layer (51) that define coolant flow channels (52) with inlets (54) and outlets (56) while a second layer (59) is stamped with voids (61, 62) that define coolant inlet and exit headers; juxtaposition of the layers, with or without bonding, form the cooler plate. A cooler plate (65) is made by corrugating thin metal sheet, providing coolant channels (68) for cathodes and coolant channels (73) for anodes when interposed therebetween.

Abstract translation: 燃料电池反应物流场板（22,32）通过挤出碳质材料的长截面（17,25）而形成，或者通过由挤出模头形成的直槽（18,28），或通过端铣或刀轴铣削，以及 然后切割成适当的尺寸，包括板的边缘相对于凹槽成一定角度的切口。 冷却板由透水材料（39）形成，其中浸渍疏水材料（40）以便限定具有入口和出口（47,49）的冷却剂通道（42-44）。 通过在限定具有入口（54）和出口（56）的冷却剂流动通道（52）的一个层（51）中冲压空隙而形成双层冷却板，而第二层（59）被冲压有空隙（61,62 ），其限定冷却剂入口和出口集管; 有或没有粘合的层的并置形成冷却板。 冷却板（65）通过瓦楞薄金属板制成，为阴极提供冷却剂通道（68）和用于阳极的冷却剂通道（73）。

公开(公告)号：US20150349362A1

公开(公告)日：2015-12-03

申请号：US14676686

申请日：2015-04-01

Applicant: Ballard Power Systems Inc.

Inventor： Sergei F. Burlatsky ,  Ned E. Cipollini ,  David A. Condit ,  Thomas H. Madden ,  Sathya Motupally ,  Lesia V. Protsailo ,  Timothy W. Patterson ,  Lei Chen ,  Mallika Gummalla

IPC: H01M8/04 ,  H01M8/10

CPC classification number: H01M8/04291 ,  H01M4/92 ,  H01M4/921 ,  H01M4/926 ,  H01M8/1004 ,  H01M8/1018 ,  H01M2008/1095 ,  H01M2250/10 ,  H01M2250/20 ,  H01M2300/0082 ,  Y02B90/14 ,  Y02E60/521 ,  Y02T90/32

Abstract: A membrane electrode assembly is provided which includes an anode; a cathode; a membrane between the anode and the cathode; and a protective layer between the membrane and at least one electrode of the anode and the cathode, the protective layer having a layer of ionomer material containing a catalyst, the layer having a porosity of between 0 and 10%, an ionomer content of between 50 and 80% vol., a catalyst content of between 10 and 50% vol., and an electrical connectivity between catalyst particles of between 35 and 75%. A configuration using a precipitation layer to prevent migration of catalyst ions is also provided.

Abstract translation: 提供一种膜电极组件，其包括阳极; 阴极 阳极和阴极之间的膜; 以及在所述膜和所述阳极和所述阴极的至少一个电极之间的保护层，所述保护层具有包含催化剂的离聚物材料层，所述层的孔隙率为0至10％，离聚物含量为50 和80体积％，催化剂含量为10至50体积％，催化剂颗粒之间的电连接率为35至75％。 还提供了使用沉淀层以防止催化剂离子迁移的构造。