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1. 发明授权

EP1668729B1 FUEL CELL GAS DIFFUSION LAYER 失效
标题翻译：燃料电池气体扩散层
公开(公告)号：EP1668729B1
公开(公告)日：2018-04-25
申请号：EP04783108.6
申请日：2004-09-03
申请人： 3M Innovative Properties Company
发明人： MEKALA, David R., , STEGINK, David W., , DAVID, Moses M., , FRISK, Joseph W.,
IPC分类号： H01M8/023 , H01M8/0234 , H01M8/0239 , H01M8/0243 , H01M8/0245 , H01M8/1018
CPC分类号： H01M8/0239 , H01M8/023 , H01M8/0234 , H01M8/0243 , H01M8/0245 , H01M2008/1095 , Y02P70/56 , Y10T428/3154
摘要： The present invention provides a fuel cell gas diffusion layer comprising a hydrophilic surface layer having a thickness of no more than 1 micron, and, thereunder, a hydrophobic second layer comprising a fluoropolymer having a thickness of at least 5 microns. Additionally, the present invention provides a method of making a fuel cell gas diffusion layer comprising the steps of a) providing a carbon fiber construction; b) coating at least the upper surface of the carbon fiber construction with composition which comprises a fluoropolymer; and c) exposing the upper surface to at least one plasma, such as a silane plasma, so as to generate a hydrophilic surface layer having a thickness of no more than 1 micron. The present invention also provides a method additionally comprising the step of partially covering the upper surface with a mask having windows according to a pattern, such that the hydrophilic surface layer is applied according to the pattern. The present invention also provides a method wherein the carbon fiber construction is provided as a roll good and the step of exposing said upper surface to at least one plasma is performed in continuous roll-to-roll fashion.

2. 发明公开

EP1880440A2 OXIDATIVELY STABLE MICROLAYERS OF GAS DIFFUSION LAYERS 有权
标题翻译：气体扩散层的氧化稳定微LAYERS
公开(公告)号：EP1880440A2
公开(公告)日：2008-01-23
申请号：EP06836038.7
申请日：2006-03-21
申请人： 3M Innovative Properties Company
发明人： FRISK, Joseph W., , BOAND, Wayne M.,
IPC分类号： H01M8/02
CPC分类号： H01M8/1004 , H01M8/0234 , H01M8/0239 , H01M8/0241 , H01M8/0245 , Y10T428/249991 , Y10T428/3154 , Y10T428/31544
摘要： The present invention is a microlayer for use with an electrically conductive porous substrate of a gas diffusion layer. The microlayer includes carbon particles and a polymeric composition of first highly-fluorinated polymers that are non-melt processable and second highly-fluorinated polymers that are melt processable.

3. 发明授权

EP1880440B1 OXIDATIVELY STABLE MICROLAYERS OF GAS DIFFUSION LAYERS 有权
标题翻译：气体扩散层的氧化稳定微LAYERS
公开(公告)号：EP1880440B1
公开(公告)日：2016-07-20
申请号：EP06836038.7
申请日：2006-03-21
申请人： 3M Innovative Properties Company
发明人： FRISK, Joseph W., , BOAND, Wayne M.,
IPC分类号： H01M8/0234 , H01M8/0239 , H01M8/0241 , H01M8/0245 , H01M8/1004
CPC分类号： H01M8/1004 , H01M8/0234 , H01M8/0239 , H01M8/0241 , H01M8/0245 , Y10T428/249991 , Y10T428/3154 , Y10T428/31544

4. 发明公开

EP1485963A2 AMINE OXIDE COATING COMPOSITIONS 有权
标题翻译：氧化胺，BESCHICHTUNGSZUSAMMENSETZUNGEN
公开(公告)号：EP1485963A2
公开(公告)日：2004-12-15
申请号：EP02805512.7
申请日：2002-10-22
申请人： 3M Innovative Properties Company
发明人： HINTZER, Klaus, , STEURER, Armin, , BIRKHORST, Dieter, , LARSON, James M., , FRISK, Joseph W., , BOAND, Wayne M.,
IPC分类号： H01M8/10
CPC分类号： H01M8/0239 , C08K5/32 , C08K9/04 , H01M8/0234 , H01M8/0243 , H01M8/0245 , Y02P70/56 , C08L27/12
摘要： An aqueous coating composition is provided comprising carbon particles, one or more highly fluorinated polymers and one or more amine oxide surfactants, typically an amine oxide surfactant according to formula (I) where n is 9 to 19. The coating composition is advantageously used in a method of making a gas diffusion layer for an electrochemical cell comprising the steps of: a) coating a electrically conductive porous substrate with the aqueous coating composition, and b) heating the electrically conductive porous substrate to a temperature sufficient to decompose the amine oxide surfactants. In another aspect, a gas diffusion layer for an electrochemical cell is provided which is advantageously free of surfactant.

5. 发明授权

EP1485963B1 AMINE OXIDE COATING COMPOSITIONS 有权
标题翻译：阿明氧化物涂层组合物
公开(公告)号：EP1485963B1
公开(公告)日：2012-03-21
申请号：EP02805512.7
申请日：2002-10-22
申请人： 3M Innovative Properties Company
发明人： HINTZER, Klaus, , STEURER, Armin, , BIRKHORST, Dieter, , LARSON, James M., , FRISK, Joseph W., , BOAND, Wayne M.,
IPC分类号： H01M8/02 , C08K5/32 , C08K9/04
CPC分类号： H01M8/0239 , C08K5/32 , C08K9/04 , H01M8/0234 , H01M8/0243 , H01M8/0245 , Y02P70/56 , C08L27/12
摘要： An aqueous coating composition is provided comprising carbon particles, one or more highly fluorinated polymers and one or more amine oxide surfactants, typically an amine oxide surfactant according to formula I:where n is 9 to 19. The coating composition is advantageously used in a method of making a gas diffusion layer for an electrochemical cell comprising the steps of: a) coating a electrically conductive porous substrate with the aqueous coating composition, and b) heating the electrically conductive porous substrate to a temperature sufficient to decompose the amine oxide surfactants. In another aspect, a gas diffusion layer for an electrochemical cell is provided which is advantageously free of surfactant.

6. 发明公开

EP1668729A2 FUEL CELL GAS DIFFUSION LAYER 失效
标题翻译： BRENNSTOFFZELLEN-GAS-DIFFUSIONSSCHICHT
公开(公告)号：EP1668729A2
公开(公告)日：2006-06-14
申请号：EP04783108.6
申请日：2004-09-03
申请人： 3M Innovative Properties Company
发明人： MEKALA, David R., , STEGINK, David W., , DAVID, Moses M., , FRISK, Joseph W.,
IPC分类号： H01M8/02
CPC分类号： H01M8/0239 , H01M8/023 , H01M8/0234 , H01M8/0243 , H01M8/0245 , H01M2008/1095 , Y02P70/56 , Y10T428/3154
摘要： The present invention provides a fuel cell gas diffusion layer comprising a hydrophilic surface layer having a thickness of no more than 1 micron, and, thereunder, a hydrophobic second layer comprising a fluoropolymer having a thickness of at least 5 microns. Additionally, the present invention provides a method of making a fuel cell gas diffusion layer comprising the steps of a) providing a carbon fiber construction; b) coating at least the upper surface of the carbon fiber construction with composition which comprises a fluoropolymer; and c) exposing the upper surface to at least one plasma, such as a silane plasma, so as to generate a hydrophilic surface layer having a thickness of no more than 1 micron. The present invention also provides a method additionally comprising the step of partially covering the upper surface with a mask having windows according to a pattern, such that the hydrophilic surface layer is applied according to the pattern. The present invention also provides a method wherein the carbon fiber construction is provided as a roll good and the step of exposing said upper surface to at least one plasma is performed in continuous roll-to-roll fashion.
摘要翻译：本发明提供一种燃料电池气体扩散层，其包括厚度不大于1微米的亲水性表面层，并且其后，包含厚度至少为5微米的含氟聚合物的疏水性第二层。此外，本发明提供一种制造燃料电池气体扩散层的方法，包括以下步骤：a）提供碳纤维结构; b）至少用碳纤维结构的上表面涂覆含有含氟聚合物的组合物; 和c）将上表面暴露于至少一种等离子体，例如硅烷等离子体，以产生厚度不超过1微米的亲水性表面层。本发明还提供一种方法，其还包括用根据图案的具有窗口的掩模部分地覆盖上表面的步骤，使得根据图案施加亲水性表面层。本发明还提供了一种方法，其中碳纤维结构被提供为辊状，并且以连续的卷对卷方式进行将所述上表面暴露于至少一个等离子体的步骤。

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