专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

US20060078784A1 Gas diffusion electrode and method of making the same 有权
公开(公告)号：US20060078784A1
公开(公告)日：2006-04-13
申请号：US11017527
申请日：2004-12-20
申请人： Han Liu , Robert McDonald , Thomas McCallum , Anthony LaConti , John Forchione , Jeanette O'Hara , Joerg Roth
发明人： Han Liu , Robert McDonald , Thomas McCallum , Anthony LaConti , John Forchione , Jeanette O'Hara , Joerg Roth
IPC分类号： H01M4/94 , H01M4/96 , H01M4/88
CPC分类号： H01M8/0245 , H01M4/8605 , H01M4/8657 , H01M4/8807 , H01M4/8817 , H01M4/8828 , H01M8/0232 , H01M8/0234 , H01M8/0239 , H01M8/0243 , H01M8/0271 , H01M8/1007 , H01M2004/021 , Y02P70/56 , Y10T428/249962 , Y10T428/249981 , Y10T428/30
摘要： A gas diffusion electrode and method of making the same. According to one embodiment, the electrode comprises a support layer, a first cushioning layer positioned on top of the support layer, a second cushioning layer positioned on top of the first cushioning layer, and a catalyst layer positioned on top of the second cushioning layer. The support layer is a mechanically stable, electrically-conductive, gas porous substrate, such as carbon fiber paper. The first cushioning layer, which is also gas porous, comprises a non-woven mat of electrically-conductive, chemically-inert fibers, preferably carbon nanofibers, bound together with a polymeric binder, such as polytetrafluoroethylene. The second cushioning layer is similar to the first cushioning layer, except that carbon black or a similar electrically-conductive, chemically-inert particulate material is included in addition to or instead of the fibrous material for the purpose of fine-tuning pore size.

2. 发明授权

US07629071B2 Gas diffusion electrode and method of making the same 有权
标题翻译：气体扩散电极及其制造方法
公开(公告)号：US07629071B2
公开(公告)日：2009-12-08
申请号：US11017527
申请日：2004-12-20
申请人： Han Liu , Robert C. McDonald , Thomas J. McCallum , Anthony B. LaConti , John Forchione , Jeanette O'Hara , Joerg Roth
发明人： Han Liu , Robert C. McDonald , Thomas J. McCallum , Anthony B. LaConti , John Forchione , Jeanette O'Hara , Joerg Roth
IPC分类号： H01M4/86 , C01B11/04
CPC分类号： H01M8/0245 , H01M4/8605 , H01M4/8657 , H01M4/8807 , H01M4/8817 , H01M4/8828 , H01M8/0232 , H01M8/0234 , H01M8/0239 , H01M8/0243 , H01M8/0271 , H01M8/1007 , H01M2004/021 , Y02P70/56 , Y10T428/249962 , Y10T428/249981 , Y10T428/30
摘要： A gas diffusion electrode and method of making the same. According to one embodiment, the electrode comprises a support layer, a first cushioning layer positioned on top of the support layer, a second cushioning layer positioned on top of the first cushioning layer, and a catalyst layer positioned on top of the second cushioning layer. The support layer is a mechanically stable, electrically-conductive, gas porous substrate, such as carbon fiber paper. The first cushioning layer, which is also gas porous, comprises a non-woven mat of electrically-conductive, chemically-inert fibers, preferably carbon nanofibers, bound together with a polymeric binder, such as polytetrafluoroethylene. The second cushioning layer is similar to the first cushioning layer, except that carbon black or a similar electrically-conductive, chemically-inert particulate material is included in addition to or instead of the fibrous material for the purpose of fine-tuning pore size.
摘要翻译：气体扩散电极及其制造方法。根据一个实施例，电极包括支撑层，位于支撑层顶部的第一缓冲层，位于第一缓冲层顶部的第二缓冲层和位于第二缓冲层顶部的催化剂层。支撑层是机械稳定的，导电的气体多孔基底，例如碳纤维纸。也是气体多孔的第一缓冲层包括与聚合物粘合剂如聚四氟乙烯结合在一起的导电的，化学惰性的纤维，优选碳纳米纤维的无纺毡。第二缓冲层类似于第一缓冲层，除了除了或代替纤维材料之外还包括炭黑或类似的导电，化学惰性的颗粒材料，以便微调孔径。

3. 发明申请

US20060035017A1 Untreated deffusion media with mesoporous layer and devices incorporating the same 有权
标题翻译：未处理的介孔层的渗滤介质和结合其的装置
公开(公告)号：US20060035017A1
公开(公告)日：2006-02-16
申请号：US11255734
申请日：2005-10-21
申请人： Jeanette O'Hara , Joerg Roth , Han Liu
发明人： Jeanette O'Hara , Joerg Roth , Han Liu
IPC分类号： B05D5/12 , H01M2/02
CPC分类号： H01M8/04291 , H01M8/023 , H01M8/0234 , H01M8/0239 , H01M8/0243 , H01M8/0245 , H01M8/04156 , H01M2250/20 , Y02T90/32 , Y10T442/2139 , Y10T442/2164 , Y10T442/2484 , Y10T442/2984
摘要： A diffusion media and a process for its fabrication are provided for addressing issues related to water management in electrochemical cells and other devices employing the diffusion media. In accordance with one embodiment of the present invention, a process for fabricating a diffusion media is provided. A diffusion media substrate is provided comprising a porous fibrous matrix defining first and second major faces. The substrate comprises an amount of carbonaceous material sufficient to render the substrate electrically conductive. A mesoporous layer is applied along at least a portion of one of the first and second major faces of the substrate. The mesoporous layer is applied to the substrate by providing a coating comprising a hydrophobic component, a hydrophilic component, and a pore forming agent. The substrate is free of fluorinated polymers outside of regions of the substrate carrying the mesoporous layer. The pore forming agent is decomposed such that the mesoporous layer is more porous than the diffusion media substrate.
摘要翻译：提供扩散介质及其制造方法，用于解决与电化学电池和使用扩散介质的其它器件中的水管理有关的问题。根据本发明的一个实施例，提供了制造扩散介质的方法。提供扩散介质基底，其包括限定第一和第二主要面的多孔纤维基质。衬底包括足以使衬底导电的一定量的碳质材料。沿着衬底的第一和第二主面中的一个的至少一部分施加介孔层。通过提供包含疏水组分，亲水组分和成孔剂的涂层将介孔层施加到基底上。衬底在承载介孔层的衬底的区域之外不含氟化聚合物。孔形成剂分解，使得介孔层比扩散介质基材多孔。

4. 发明申请

US20050026523A1 Untreated diffusion media with mesoporous layer and devices incorporating the same 有权
公开(公告)号：US20050026523A1
公开(公告)日：2005-02-03
申请号：US10628856
申请日：2003-07-28
申请人： Jeanette O'Hara , Joerg Roth , Han Liu
发明人： Jeanette O'Hara , Joerg Roth , Han Liu
IPC分类号： H01M8/02 , H01M8/04 , B32B5/18
CPC分类号： H01M8/04291 , H01M8/023 , H01M8/0234 , H01M8/0239 , H01M8/0243 , H01M8/0245 , H01M8/04156 , H01M2250/20 , Y02T90/32 , Y10T442/2139 , Y10T442/2164 , Y10T442/2484 , Y10T442/2984
摘要： A diffusion media and a process for its fabrication are provided for addressing issues related to water management in electrochemical cells and other devices employing the diffusion media. In accordance with one embodiment of the present invention, a process for fabricating a diffusion media is provided. A diffusion media substrate is provided comprising a porous fibrous matrix defining first and second major faces. The substrate comprises an amount of carbonaceous material sufficient to render the substrate electrically conductive. A mesoporous layer is applied along at least a portion of one of the first and second major faces of the substrate. The mesoporous layer is applied to the substrate by providing a coating comprising a hydrophobic component, a hydrophilic component, and a pore forming agent. The substrate is free of fluorinated polymers outside of regions of the substrate carrying the mesoporous layer. The pore forming agent is decomposed such that the mesoporous layer is more porous than the diffusion media substrate.

5. 发明申请

US20050026018A1 Spatially varying diffusion media and devices incorporating the same 有权
标题翻译：空间变化的扩散介质和结合其的装置
公开(公告)号：US20050026018A1
公开(公告)日：2005-02-03
申请号：US10628318
申请日：2003-07-28
申请人： Jeanette O'Hara , Thomas Trabold , Michael Schoeneweiss , Joerg Roth
发明人： Jeanette O'Hara , Thomas Trabold , Michael Schoeneweiss , Joerg Roth
IPC分类号： H01M8/02 , H01M8/04 , H01M2/00 , H01M2/02 , H01M2/14 , H01M8/00 , H01M8/18
CPC分类号： H01M8/0245 , H01M8/0234 , H01M8/0239 , H01M8/0241 , H01M8/04119 , H01M8/04291
摘要： A diffusion media and a scheme for spatially varying the parameters of the diffusion media to address issues related to water management in electrochemical cells and other devices employing the diffusion media are provided. A device is configured to convert a hydrogenous fuel source to electrical energy and comprises an electrochemical conversion assembly, first and second reactant inputs, first and second product outputs, and first and second diffusion media. The device is configured such that a mesoporous layer is carried along at least a portion of a major face of one of the first and second diffusion media substrates. The mesoporous layer comprises a hydrophilic carbonaceous component and a hydrophobic component. The mesoporous layer occupies a substantially greater portion of one of the high or low H2O regions of the device, relative to the other of the high or low H2O region of the device.
摘要翻译：提供扩散介质和用于空间变化扩散介质的参数以解决与使用扩散介质的电化学电池中的水管理有关的问题的方案。一种装置被配置为将氢燃料源转换成电能并且包括电化学转化组件，第一和第二反应物输入，第一和第二产物输出以及第一和第二扩散介质。该器件被配置成使得介孔层沿着第一和第二扩散介质衬底之一的主面的至少一部分被携带。介孔层包含亲水性碳质组分和疏水组分。介孔层相对于器件的高或低H 2 O区域中的另一个占据器件的高或低H 2 O区域中的一个的大部分。

6. 发明授权

US07670704B2 Untreated diffusion media with mesoporous layer and devices incorporating the same 有权
标题翻译：未处理的具有介孔层的扩散介质和结合其的装置
公开(公告)号：US07670704B2
公开(公告)日：2010-03-02
申请号：US11255734
申请日：2005-10-21
申请人： Jeanette E. O'Hara , Joerg Roth , Han Liu
发明人： Jeanette E. O'Hara , Joerg Roth , Han Liu
IPC分类号： H01M8/10
CPC分类号： H01M8/04291 , H01M8/023 , H01M8/0234 , H01M8/0239 , H01M8/0243 , H01M8/0245 , H01M8/04156 , H01M2250/20 , Y02T90/32 , Y10T442/2139 , Y10T442/2164 , Y10T442/2484 , Y10T442/2984
摘要： A diffusion media and a process for its fabrication are provided for addressing issues related to water management in electrochemical cells and other devices employing the diffusion media. In accordance with one embodiment of the present invention, a process for fabricating a diffusion media is provided. A diffusion media substrate is provided comprising a porous fibrous matrix defining first and second major faces. The substrate comprises an amount of carbonaceous material sufficient to render the substrate electrically conductive. A mesoporous layer is applied along at least a portion of one of the first and second major faces of the substrate. The mesoporous layer is applied to the substrate by providing a coating comprising a hydrophobic component, a hydrophilic component, and a pore forming agent. The substrate is free of fluorinated polymers outside of regions of the substrate carrying the mesoporous layer. The pore forming agent is decomposed such that the mesoporous layer is more porous than the diffusion media substrate.
摘要翻译：提供扩散介质及其制造方法，用于解决与电化学电池和使用扩散介质的其它器件中的水管理有关的问题。根据本发明的一个实施例，提供了制造扩散介质的方法。提供扩散介质基底，其包括限定第一和第二主要面的多孔纤维基质。衬底包括足以使衬底导电的一定量的碳质材料。沿着衬底的第一和第二主面中的一个的至少一部分施加介孔层。通过提供包含疏水组分，亲水组分和成孔剂的涂层将介孔层施加到基底上。衬底在承载介孔层的衬底的区域之外不含氟化聚合物。孔形成剂分解，使得介孔层比扩散介质基材多孔。

7. 发明授权

US06967039B2 Untreated diffusion media with mesoporous layer and devices incorporating the same 有权
标题翻译：未处理的具有介孔层的扩散介质和结合其的装置
公开(公告)号：US06967039B2
公开(公告)日：2005-11-22
申请号：US10628856
申请日：2003-07-28
申请人： Jeanette E. O'Hara , Joerg Roth , Han Liu
发明人： Jeanette E. O'Hara , Joerg Roth , Han Liu
IPC分类号： H01M8/02 , H01M8/04 , B05D5/12
CPC分类号： H01M8/04291 , H01M8/023 , H01M8/0234 , H01M8/0239 , H01M8/0243 , H01M8/0245 , H01M8/04156 , H01M2250/20 , Y02T90/32 , Y10T442/2139 , Y10T442/2164 , Y10T442/2484 , Y10T442/2984
摘要： A diffusion media and a process for its fabrication are provided for addressing issues related to water management in electrochemical cells and other devices employing the diffusion media. In accordance with one embodiment of the present invention, a process for fabricating a diffusion media is provided. A diffusion media substrate is provided comprising a porous fibrous matrix defining first and second major faces. The substrate comprises an amount of carbonaceous material sufficient to render the substrate electrically conductive. A mesoporous layer is applied along at least a portion of one of the first and second major faces of the substrate. The mesoporous layer is applied to the substrate by providing a coating comprising a hydrophobic component, a hydrophilic component, and a pore forming agent. The substrate is free of fluorinated polymers outside of regions of the substrate carrying the mesoporous layer. The pore forming agent is decomposed such that the mesoporous layer is more porous than the diffusion media substrate.
摘要翻译：提供扩散介质及其制造方法，用于解决与电化学电池和使用扩散介质的其它器件中的水管理有关的问题。根据本发明的一个实施例，提供了制造扩散介质的方法。提供扩散介质基底，其包括限定第一和第二主要面的多孔纤维基质。衬底包括足以使衬底导电的一定量的碳质材料。沿着衬底的第一和第二主面中的一个的至少一部分施加介孔层。通过提供包含疏水组分，亲水组分和成孔剂的涂层将介孔层施加到基底上。衬底在承载介孔层的衬底的区域之外不含氟化聚合物。孔形成剂分解，使得介孔层比扩散介质基材多孔。

8. 发明申请

US20050199079A1 Method of making a gas diffusion media and quality controls for same 有权
标题翻译：制造气体扩散介质的方法和质量控制相同
公开(公告)号：US20050199079A1
公开(公告)日：2005-09-15
申请号：US11127376
申请日：2005-05-12
申请人： Joerg Roth
发明人： Joerg Roth
IPC分类号： G01N13/04 , G01N15/08 , H01M2/02
CPC分类号： G01N13/04 , G01N15/0893
摘要： The present invention discloses various methods in which a quality of a diffusion media for use in a fuel cell assembly can be qualitatively evaluated. The material constant, an internal contact angle, a ratio of high and low energy pores, and an external contact angle can be calculated for the diffusion media and compared to a predetermined standard to evaluate the quality of the diffusion media.
摘要翻译：本发明公开了可以定性地评价用于燃料电池组件的扩散介质的质量的各种方法。可以计算扩散介质的材料常数，内部接触角，高能和低能隙的比率和外部接触角，并与预定标准进行比较，以评估扩散介质的质量。

9. 发明授权

US06928893B2 Method of making a gas diffusion media and quality controls for same 有权
公开(公告)号：US06928893B2
公开(公告)日：2005-08-16
申请号：US10342976
申请日：2003-01-15
申请人： Joerg Roth
发明人： Joerg Roth
IPC分类号： G01N13/04 , G01N15/08 , H01M2/02 , G01N33/00
CPC分类号： G01N13/04 , G01N15/0893
摘要： The present invention discloses various methods in which a quality of a diffusion media for use in a fuel cell assembly can be qualitatively evaluated. The material constant, an internal contact angle, a ratio of high and low energy pores, and an external contact angle can be calculated for the diffusion media and compared to a predetermined standard to evaluate the quality of the diffusion media.

10. 发明授权

US07284411B2 Method of making a gas diffusion media and quality controls for same 有权
标题翻译：制造气体扩散介质的方法和质量控制相同
公开(公告)号：US07284411B2
公开(公告)日：2007-10-23
申请号：US11127376
申请日：2005-05-12
申请人： Joerg Roth
发明人： Joerg Roth
IPC分类号： G01N15/08 , H01M4/06
CPC分类号： G01N13/04 , G01N15/0893
摘要： The present invention discloses various methods in which a quality of a diffusion media for use in a fuel cell assembly can be qualitatively evaluated. The material constant, an internal contact angle, a ratio of high and low energy pores, and an external contact angle can be calculated for the diffusion media and compared to a predetermined standard to evaluate the quality of the diffusion media.
摘要翻译：本发明公开了可以定性地评价用于燃料电池组件的扩散介质的质量的各种方法。可以计算扩散介质的材料常数，内部接触角，高能和低能隙的比率和外部接触角，并与预定标准进行比较，以评估扩散介质的质量。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式