公开(公告)号：US20060040148A1

公开(公告)日：2006-02-23

申请号：US11206597

申请日：2005-08-18

Applicant: Richard Blunk ,  Tao Xie ,  Mahmoud Abd Elhamid ,  Youssef Mikhail ,  Gayatri Vyas ,  Daniel Lisi

Inventor： Richard Blunk ,  Tao Xie ,  Mahmoud Abd Elhamid ,  Youssef Mikhail ,  Gayatri Vyas ,  Daniel Lisi

IPC: H01M8/00 ,  B23H3/00

CPC classification number: H01M8/0228 ,  H01M8/0213 ,  H01M8/0221 ,  H01M8/0226 ,  H01M8/04291

Abstract: Methods and systems for enhancing water management capabilities of a fuel cell system are described. The surface of a composite bipolar plate is chemically treated, for example with an oxidizer, to create a hydrophilic surface. The chemical treatment can include immersing the composite plate in an acid bath to acid etch the surface of the composite plate. Additionally, anodic roughening can also be utilized prior to placing the composite plate in the acid bath.

Abstract translation: 描述了用于增强燃料电池系统的水管理能力的方法和系统。 化学处理复合双极板的表面，例如用氧化剂处理，以产生亲水表面。 化学处理可以包括将复合板浸入酸浴中以酸蚀蚀复合板的表面。 此外，在将复合板放置在酸浴中之前，也可以使用阳极粗糙化。

公开(公告)号：US20060029859A1

公开(公告)日：2006-02-09

申请号：US10911851

申请日：2004-08-05

Applicant: Mahmoud Abd Elhamid ,  Youssef Mikhail ,  Richard Blunk

Inventor： Mahmoud Abd Elhamid ,  Youssef Mikhail ,  Richard Blunk

IPC: H01M4/94 ,  C25C7/00

CPC classification number: H01M8/0245 ,  H01M8/0234 ,  H01M8/0239 ,  H01M2008/1095 ,  H01M2250/20 ,  Y02T90/32

Abstract: A device comprising a membrane electrode assembly, porous diffusion media, and at least one pair of bipolar plate assemblies is provided. The membrane electrode assembly is interposed between a pair of diffusion media substrates, the bipolar plate assembly comprises at least one flow field passage, and the bipolar plate assembly engages the diffusion media substrate. The diffusion media substrate comprises a fibrous matrix defining opposing first and second major faces. The substrate comprises an amount of carbonaceous material sufficient to render the substrate electrically conductive. An anion exchange resin layer engages at least a portion of at least one of the first and second major faces of the diffusion media substrate and/or the flow field passage. The anion exchange resin is configured to eliminate anions through exchange with hydroxyl groups or formation of quaternary ammonium salts.

Abstract translation: 提供了一种包括膜电极组件，多孔扩散介质和至少一对双极板组件的装置。 膜电极组件介于一对扩散介质基板之间，双极板组件包括至少一个流场通道，双极板组件与扩散介质基板接合。 扩散介质衬底包括限定相对的第一和第二主面的纤维矩阵。 衬底包括足以使衬底导电的一定量的碳质材料。 阴离子交换树脂层与扩散介质基板和/或流场通道的第一和第二主面中的至少一个的至少一部分接合。 阴离子交换树脂被配置为通过与羟基交换或季铵盐的形成来消除阴离子。

公开(公告)号：US20050031933A1

公开(公告)日：2005-02-10

申请号：US10635123

申请日：2003-08-06

Applicant: Richard Blunk ,  Mahmoud Abd Elhamid ,  Daniel Lisi ,  Youssef Mikhail ,  Michael Budinski

Inventor： Richard Blunk ,  Mahmoud Abd Elhamid ,  Daniel Lisi ,  Youssef Mikhail ,  Michael Budinski

IPC: H01M2/08 ,  H01M8/00 ,  H01M8/02 ,  H01M8/04 ,  H04M1/64 ,  H04M11/04

CPC classification number: H01M8/0228 ,  H01M8/0206 ,  H01M8/0213 ,  H01M8/0221 ,  H01M8/0226 ,  H01M8/0267 ,  H01M8/0297 ,  H01M8/241 ,  H01M8/2483 ,  H01M8/2484 ,  Y10T29/49114 ,  Y10T428/31678

Abstract: The present invention relates to an electrically conductive element (e.g. bipolar plate) for a fuel cell which has an improved adhesive bond. The conductive element generally comprises a first and a second conductive sheet, each having a surface that confront one another. The surfaces that confront one another are overlaid with an electrically conductive primer coating providing corrosion protection and low contact resistance to said first and said second sheets respectively in regions where the first and second sheets contact one another. The first and said second coated surfaces are joined to one another by an electrically conductive adhesive which provides adhesion of said first and said second coated surfaces of said sheets at the contact region. Further, the present invention contemplates methods to form such an improved bond in an electrically conductive element.