公开(公告)号：WO2006093586A3

公开(公告)日：2007-10-04

申请号：PCT/US2006002237

申请日：2006-01-23

Applicant: GEN MOTORS GLOBAL TECHNOLOGY

Inventor： VYAS GAYATRI ,  TRABOLD THOMAS A ,  GAARENSTROOM STEPHEN WILLIAM

IPC: H01M2/14 ,  H01M2/00 ,  H01M8/10

CPC classification number: H01M8/0228 ,  H01M8/0206 ,  H01M8/0208 ,  H01M8/0213 ,  H01M8/0226 ,  H01M8/0232 ,  H01M8/1004 ,  Y02P70/56

Abstract: A flow field plate for a fuel cell that has one or more outer layers that makes the plate more conductive and hydrophilic. In one embodiment, the coating is co-deposited as combination of a conductive material and a metal oxide coating. A suitable conductive material is gold and suitable metal oxides include SiO 2 , HfO 2 , ZrO 2 , AI2O 3 , SnO 2 , Ta2O 5 , Nb2O 5 , MoO 2 , IrO 2 , RuO 2 and mixtures thereof. The conductive material and metal oxide can also be deposited as two separate layers, where the metal oxide is the outer layer. According to another embodiment, a metal layer is deposited on the plate with nanopores that provide the hydrophilicity. Also, doping ions can be added to the metal oxide to provide low fluoride solubility of the coating to control the rate that hydrofluoric acid etches away the oxide layer.

Abstract translation: 一种用于燃料电池的流场板，其具有使得该板更具导电性和亲水性的一个或多个外层。 在一个实施方案中，涂层作为导电材料和金属氧化物涂层的组合共沉积。 合适的导电材料是金，合适的金属氧化物包括SiO 2，HfO 2，ZrO 2，Al 2 O 3， ，SnO 2，Ta 2 O 5，Nb 2 O 5，MoO 2，Ir 2 O 2，N 2 O 2， ，RuO 2 2和它们的混合物。 导电材料和金属氧化物也可以沉积成两个分开的层，其中金属氧化物是外层。 根据另一个实施方案，金属层沉积在具有提供亲水性的纳米孔的板上。 此外，可以向金属氧化物中加入掺杂离子以提供涂层的低氟化物溶解度，以控制氢氟酸腐蚀掉氧化物层的速率。

公开(公告)号：WO2007021679A2

公开(公告)日：2007-02-22

申请号：PCT/US2006030866

申请日：2006-08-08

Applicant: GEN MOTORS GLOBAL TECHNOLOGY

Inventor： WINTER GERHARD ,  VYAS GAYATRI ,  TRABOLD THOMAS A ,  DATTA REENA L

IPC: H01M8/02 ,  B05D5/12

CPC classification number: H01M8/0228 ,  H01M8/0206 ,  H01M8/0213 ,  H01M8/0221 ,  H01M8/0226 ,  H01M8/023 ,  H01M8/0234 ,  H01M8/0241 ,  H01M8/0243 ,  H01M8/04291 ,  H01M2008/1095 ,  H01M2250/20 ,  Y02E60/50 ,  Y02T90/32 ,  Y10T29/49931

Abstract: One embodiment disclosed includes a product comprising: a fuel cell component comprising a substrate and a first coating overlying the substrate, the coating comprising a compound comprising at least one Si-O group, at least one polar group and at least one group including a saturated or unsaturated carbon chain.

Abstract translation: 所公开的一个实施方案包括：产品，包括：燃料电池组件，其包含基材和覆盖在基材上的第一涂层，所述涂层包含包含至少一个Si-O基团，至少一个极性基团和至少一个包含饱和 或不饱和碳链。

公开(公告)号：WO2006104543A3

公开(公告)日：2009-04-30

申请号：PCT/US2006002240

申请日：2006-01-23

Applicant: GEN MOTORS GLOBAL TECHNOLOGY

Inventor： VYAS GAYATRI ,  BLUNK RICHARD H ,  TRABOLD THOMAS A ,  DATTA REENA L ,  NEWMAN KEITH E

IPC: H01M2/00

CPC classification number: H01M8/0228 ,  H01M8/0204 ,  H01M8/0206 ,  H01M8/021 ,  H01M2008/1095

Abstract: A flow field plate for a fuel cell that includes an outer layer of a metal oxide or other material that makes the plate hydrophilic. The particular metal oxide and the thickness of the metal oxide layer are selected so that hydrofluoric acid generated by the fuel cell continuously etches away the layer at a predetermined rate so that a surface of the layer is free of contaminants over the entire life of the fuel cell. If the fuel cell does not employ a perfluorosulfonic acid membrane, then a separate hydrofluoric acid source can be provided that injects a low level solution of hydrofluoric acid into one or both of the reactant gas streams.

Abstract translation: 一种用于燃料电池的流场板，其包括使板成为亲水性的金属氧化物或其它材料的外层。 选择特定的金属氧化物和金属氧化物层的厚度，使得由燃料电池产生的氢氟酸以预定的速率连续地蚀刻掉层，使得在燃料的整个寿命期间该层的表面没有污染物 细胞。 如果燃料电池不使用全氟磺酸膜，则可以提供单独的氢氟酸源，其将低水平的氢氟酸溶液注入反应物气流中的一种或两种。

公开(公告)号：WO2006104542A3

公开(公告)日：2007-11-22

申请号：PCT/US2006002238

申请日：2006-01-23

Applicant: GEN MOTORS GLOBAL TECHNOLOGY

Inventor： VYAS GAYATRI ,  ABD ELHAMID MAHMOUD H ,  TRABOLD THOMAS A ,  NEWMAN KEITH E ,  BLUNK RICHARD H ,  MIKHAIL YOUSSEF M ,  DATTA REENA L

IPC: H01M2/00 ,  H01M2/14

CPC classification number: H01M8/0228 ,  H01M8/0204 ,  H01M8/0206 ,  H01M8/021 ,  H01M8/0213 ,  H01M8/0226

Abstract: A flow field plate for a fuel cell that includes a metal oxide coating that makes the plate hydrophilic. In one embodiment, the metal oxide coating is a thin film to maintain the conductive properties of the flow field plate. The metal oxide can be combined with a conductive oxide. According to another embodiment, the metal oxide coating is deposited as islands on the flow field plate so that the flow field plate is exposed between the islands. According to another embodiment, lands between the flow channels are polished to remove the metal oxide layer and expose the flow field plate. According to another embodiment, the flow field plate is blasted with alumina so that embedded alumina particles and the roughened surface of the plate provide the hydrophilicity.

Abstract translation: 一种用于燃料电池的流场板，其包括使板成为亲水性的金属氧化物涂层。 在一个实施例中，金属氧化物涂层是维持流场板的导电性能的薄膜。 金属氧化物可与导电氧化物组合。 根据另一个实施例，金属氧化物涂层作为岛状沉积在流场板上，使得流场板在岛之间暴露。 根据另一个实施例，抛光流动通道之间的平台以去除金属氧化物层并暴露流场板。 根据另一个实施例，用氧化铝喷射流场板，使得嵌入的氧化铝颗粒和板的粗糙表面提供亲水性。