公开(公告)号：US20040265676A1

公开(公告)日：2004-12-30

申请号：US10493204

申请日：2004-04-21

Inventor： Jun Takagi ,  Shyusei Ohya ,  Yuuichi Fujii

IPC: H01M004/96 ,  H01M004/94 ,  H01M008/10

CPC classification number: H01M8/1081 ,  H01B1/122 ,  H01M4/8605 ,  H01M8/1004 ,  H01M8/1023 ,  H01M8/1039 ,  H01M8/1058 ,  Y02P70/56

Abstract: A polymer electrolyte solution useful in the fabrication of solid polymer electrolyte fuel cell electrodes, characterized by comprising a solvent containing a hydrophilic and high-boiling polar solvent, preferably a mixed solvent mainly comprising the polar solvent and water, having dissolved therein a perfluorocarbon sulfonic acid polymer.

Abstract translation: 一种用于制造固体聚合物电解质燃料电池电极的聚合物电解质溶液，其特征在于包括含有亲水和高沸点极性溶剂的溶剂，优选主要包含极性溶剂和水的混合溶剂，其中溶解有全氟化碳磺酸 聚合物。

公开(公告)号：US20040258979A1

公开(公告)日：2004-12-23

申请号：US10601275

申请日：2003-06-20

Applicant: Ballard Power Systems Inc.

Inventor： Siyu Ye ,  Paul Beattie ,  Todd E. Wilke ,  Shannon R. Hodgson ,  Kyoung Bai ,  Michael V. Lauritzen

IPC: H01M004/88 ,  H01M004/94 ,  H01M008/10

CPC classification number: H01M4/8807 ,  H01M4/8663 ,  H01M4/8889 ,  H01M4/90 ,  H01M8/1004 ,  Y02P70/56

Abstract: A membrane electrode assembly may be made using a one-sided catalyst coated membrane (CCM) wherein only one catalyst layer, either the anode or the cathode, is coated directly on the ion-exchange membrane. In particular, a one-sided CCM may be used where it may not be practicable to coat both sides of the ion-exchange membrane with catalyst layers such as when PTFE is added to the anode catalyst layer to render it reversal tolerant.

Abstract translation: 膜电极组件可以使用其中只有一个催化剂层（阳极或阴极）直接涂覆在离子交换膜上的单面催化剂涂覆膜（CCM）制成。 特别地，可以使用单面CCM，其中可能不可行地用催化剂层涂覆离子交换膜的两侧，例如当将PTFE加入到阳极催化剂层中以使其具有耐逆转性时。

公开(公告)号：US20040224190A1

公开(公告)日：2004-11-11

申请号：US10435610

申请日：2003-05-09

Inventor： Jun Sasahara ,  Daniel Braithwaite ,  Suk-Won Cha ,  Tibor Fabian ,  Tadahiro Kubota ,  Nariaki Kuriyama ,  Sang-Joon John Lee ,  Ryan O'Hayre ,  Friedrich B. Prinz ,  Yuji Saito ,  Toshifumi Suzuki

IPC: H01M008/00 ,  H01M008/02 ,  H01M004/94

CPC classification number: H01M8/0228 ,  H01M8/0221 ,  H01M8/0226 ,  H01M8/0232 ,  H01M8/0256 ,  H01M8/0263 ,  H01M8/0269 ,  H01M8/0271 ,  H01M8/241 ,  H01M8/2415 ,  H01M8/247 ,  H01M8/2483

Abstract: A simple, inexpensive and highly efficient fuel cell has boundary structures made of a photo-sensitive material in combination with selective patterning. Printed circuit board (PCB) fabrication techniques combine boundary structures with two and three dimensional electrical flow path. Photo-sensitive material and PCB fabrication techniques are alternately or combined utilized for making micro-channel structures or micro stitch structures for substantially reducing dead zones of the diffusion layer while keeping fluid flow resistance to a minimum. The fuel cell assembly is free of mechanical clamping elements. Adhesives that may be conductively contaminated and/or fiber-reinforced provide mechanical and eventual electrical connections, and sealing within the assembly. Mechanically supporting backing layers are pre-fabricated with a natural bend defined in combination with the backing layers' elasticity to eliminate massive support plates and assist the adhesive bonding. Proton insulation between adjacent and electrically linked in-plane cell elements is provided by structural insulation within the central membrane.

Abstract translation: 简单，廉价和高效的燃料电池具有由选择性图案化组合的光敏材料制成的边界结构。 印刷电路板（PCB）制造技术将边界结构与二维和三维电流路相结合。 交替或组合的感光材料和PCB制造技术用于制造微通道结构或微缝合结构，用于基本上减少扩散层的死区，同时将流体阻力保持在最小。 燃料电池组件没有机械夹紧元件。 可能导电污染和/或纤维增强的粘合剂提供机械和最终的电连接，并在组件内密封。 机械支撑背衬层的预制件具有与背衬层弹性相结合定义的自然弯曲，以消除大量的支撑板并有助于粘结。 相邻和电连接的面内单元元件之间的质子绝缘由中心膜内的结构绝缘提供。

公开(公告)号：US20040166400A1

公开(公告)日：2004-08-26

申请号：US10781234

申请日：2004-02-18

Inventor： John M. Gascoyne ,  Shanna D. Knights ,  Thomas R. Ralph ,  Jared L. Taylor ,  David P. Wilkinson

IPC: H01M004/96 ,  H01M004/94 ,  H01M008/10

CPC classification number: H01M8/04559 ,  H01M4/8605 ,  H01M4/90 ,  H01M4/9075 ,  H01M4/9083 ,  H01M4/925 ,  H01M4/926 ,  H01M8/04119 ,  H01M8/04291 ,  H01M8/04582 ,  H01M8/04671 ,  H01M8/04902 ,  H01M8/1004 ,  H01M8/1007 ,  H01M10/4235 ,  H01M2004/8684 ,  H01M2300/0005 ,  H01M2300/0082

Abstract: An improved fuel cell anode structure comprises a substrate and a first carbon-based component. The first carbon-based component exhibits little or no resistance to corrosion. When said anode structure is incorporated into a membrane electrode assembly, the membrane electrode assembly is tolerant to incidences of cell voltage reversal.

Abstract translation: 改进的燃料电池阳极结构包括基底和第一碳基组分。 第一种碳基组分显示很少或没有抗腐蚀性。 当所述阳极结构结合到膜电极组件中时，膜电极组件容忍电池电压反转的发生。

公开(公告)号：US20040157105A1

公开(公告)日：2004-08-12

申请号：US10650863

申请日：2003-08-28

Inventor： Stanford R. Ovshinsky ,  Zdravjo Menjak ,  Srinivasan Venkatesan ,  Rajeev Puttaiah ,  Hong Wang

IPC: H01M008/02 ,  H01M004/94 ,  H01M008/24

CPC classification number: H01M8/0271 ,  H01M8/0273 ,  H01M8/2445 ,  H01M8/2459 ,  H01M8/247 ,  H01M8/2483

Abstract: The present invention discloses a fuel cell having at least one bi-cell. The bi-cells may be stacked in series to achieve a desired power output. Each bi-cell is a unit cell comprising two hydrogen electrodes, two air/oxygen electrodes, two electrolyte distributors and a gas diffuser. The hydrogen electrodes are disposed adjacent to one another and the air/oxygen electrodes are disposed on the outside ends of the hydrogen electrodes. An electrolyte distributor is disposed between each adjacently set hydrogen electrode and air/oxygen electrode. A gas diffuser/distributor is disposed between the hydrogen electrodes. An elastomeric material is injected between the electrodes and distributors to provide mechanical stability. Further, the entire bi-cell is overmolded with an elastomeric material. Ribs are set in the distributors to prevent the elastomeric material from flowing into areas designed for electrolyte flow, hydrogen flow and mechanical restraints and to promote uniform spacing between the various components. When the bi-cell units are stacked and secured, sufficient openings for air are formed to allow air to contact the air/oxygen electrodes.

Abstract translation: 本发明公开了一种具有至少一个双电池的燃料电池。 双电池可以串联堆叠以实现期望的功率输出。 每个双电池是包括两个氢电极，两个空气/氧电极，两个电解液分配器和气体扩散器的晶胞。 氢电极彼此相邻配置，空气/氧电极设置在氢电极的外端。 在每个相邻设置的氢电极和空气/氧电极之间设置电解质分配器。 气体扩散器/分配器设置在氢电极之间。 在电极和分配器之间注入弹性体材料以提供机械稳定性。 此外，整个双电池被弹性体材料包覆成型。 肋条设置在分配器中，以防止弹性体材料流入设计用于电解质流动，氢气流动和机械约束的区域，并促进各种部件之间的均匀间隔。 当双电池单元堆叠并固定时，形成足够的空气开口以允许空气接触空气/氧气电极。

公开(公告)号：US20040137310A1

公开(公告)日：2004-07-15

申请号：US10471763

申请日：2004-03-08

Inventor： Yohannes Kiros

IPC: H01M004/94 ,  H01M004/96 ,  H01M004/88

CPC classification number: H01M4/8605 ,  H01M4/90 ,  H01M2004/8689

Abstract: The invention refers to an oxygen reduction electrode comprising at least three layers: a current collector; a diffusion layer comprising at least PTFE; and a catalytical active layer, comprising at least a mixture of perovskites and pyrolysed macrocycles. In this way, oxygen may be utilised from air without an initial removal of carbon dioxide. Moreover, the invention refers to methods for preparing the electrode, as well as fuel cells and other products wherein the electrode can be used.

Abstract translation: 本发明涉及包含至少三层的氧还原电极：集电器; 至少包含PTFE的扩散层; 和催化活性层，其至少包括钙钛矿和热解的大环化合物的混合物。 以这种方式，可以从空气中使用氧气而不初始除去二氧化碳。 此外，本发明涉及制备电极的方法，以及可以使用电极的燃料电池和其它产品。

公开(公告)号：US20040131920A1

公开(公告)日：2004-07-08

申请号：US10730256

申请日：2003-12-09

Inventor： Akihiko Yoshida ,  Yoshihiro Hori ,  Osamu Sakai ,  Makoto Uchida ,  Eiichi Yasumoto ,  Shinya Kosako

IPC: H01M004/96 ,  H01M008/10 ,  H01M004/94

CPC classification number: H01M8/1004 ,  H01M4/8605 ,  H01M8/04119

Abstract: A carbon fiber woven fabric for use as a gas diffusion layer base material in a polymer electrolyte fuel cell has a surface that is smoothed and further optimized to inhibit non-uniform infiltration of a coating for water-repellent-layer formation, to provide an electrolyte membrane-electrode assembly suitable for operation under a high humidification condition. The gas diffusion layer base material may be a carbon fiber woven fabric, wherein a ratio of the area of gap portions where neither warp thread nor weft thread exists: (10/WnullY)(10/ZnullX) to the area of portions where warp thread is crossing weft thread: XY mm2 is in the range of about {fraction (1/1500)} to about null, where the carbon fiber woven fabric has a warp density of Z threads/cm, a weft density of W threads/cm, a warp thickness of X mm and a weft thickness of Y mm.

Abstract translation: 在聚合物电解质燃料电池中用作气体扩散层基材的碳纤维织物具有平滑化和进一步优化的表面，以抑制用于防水层形成的涂层的不均匀渗透，从而提供电解质 膜 - 电极组件适用于高加湿条件下的操作。 气体扩散层基材可以是碳纤维织物，其中不存在经线和纬纱的间隙部分的面积比（10 / WY）（10 / ZX）与经线部分的面积 横向纬纱：XY mm 2在大约{分数（1/1500至约1/5）的范围内，其中碳纤维织物的经纱密度为Z线/厘米，纬纱的纬纱密度 / cm，经度为Xmm，纬纱厚度为Ymm。

公开(公告)号：US20040121220A1

公开(公告)日：2004-06-24

申请号：US10724713

申请日：2003-12-02

Applicant: Sanyo Electric Co., Ltd.

Inventor： Yoshihiro Ikoma

IPC: H01M004/94 ,  H01M004/96

CPC classification number: H01M4/926 ,  H01M4/92 ,  H01M8/0234 ,  H01M8/1007

Abstract: The invention provides a fuel cell and an electrode for a fuel cell, wherein a gas diffusion path and three-phase interface are secured in an air electrode, so that a desired output is stably maintained. In a catalyst layer in the air electrode, a highly graphitized carbon particle (101) is included, in addition to a carbon particle (105) supporting a catalytic metal (107).

Abstract translation: 本发明提供了一种用于燃料电池的燃料电池和电极，其中在空气电极中固定有气体扩散路径和三相界面，从而稳定地保持期望的输出。 在空气电极的催化剂层中，除了支撑催化金属（107）的碳粒子（105）之外，还含有高度石墨化的碳粒子（101）。

公开(公告)号：US20040106034A1

公开(公告)日：2004-06-03

申请号：US10722946

申请日：2003-11-26

Inventor： Timothy A. Bekkedahl ,  Lawrence J. Bregoli ,  Ned E. Cipollini ,  Timothy W. Patterson ,  Marianne Pemberton ,  Jonathan Puhalski ,  Carl A. Reiser ,  Richard D. Sawyer ,  Margaret M. Steinbugler ,  Jung S. Yi

IPC: H01M004/94 ,  H01M008/04 ,  H01M004/96

CPC classification number: H01M8/04029 ,  H01M8/0243 ,  H01M8/0245 ,  H01M8/0258 ,  H01M8/0267 ,  H01M8/0271 ,  H01M8/04089 ,  H01M8/04097 ,  H01M8/04119 ,  H01M8/04156 ,  H01M8/04291 ,  H01M8/1007 ,  H01M2008/1095 ,  H01M2250/10 ,  Y02B90/14

Abstract: A fuel cell power plant includes a fuel cell having a membrane electrode assembly (MEA), disposed between an anode support plate and a cathode support plate, the anode and/or cathode support plates include a hydrophilic substrate layer having a predetermined pore size. The pressure of the reactant gas streams is greater than the pressure of the coolant stream, such that a greater percentage of the pores within the hydrophilic substrate layer contain reactant gas rather than water. Any water that forms on the cathode side of the MEA will migrate through the cathode support plate and away from the MEA. Controlling the pressure also ensures that the coolant water will continually migrate from the coolant stream toward the anode side of the MEA, thereby preventing the membrane from becoming dry. Proper pore size and a pressure differential between coolant and reactants improves the electrical efficiency of the fuel cell.

Abstract translation: 燃料电池发电厂包括具有设置在阳极支撑板和阴极支撑板之间的膜电极组件（MEA）的燃料电池，阳极和/或阴极支撑板包括具有预定孔径的亲水基底层。 反应物气体流的压力大于冷却剂流的压力，使得亲水基底层内的较大百分比的孔含有反应物气体而不是水。 在MEA的阴极侧形成的任何水将通过阴极支撑板迁移并远离MEA。 控制压力还可确保冷却水从冷却剂流向MEA的阳极侧连续迁移，从而防止膜变干。 冷却剂和反应物之间适当的孔径和压力差提高了燃料电池的电效率。

公开(公告)号：US20040096730A1

公开(公告)日：2004-05-20

申请号：US10380465

申请日：2003-03-19

Inventor： Yuichi Kuroki ,  Tomohiro Inoue

IPC: H01M004/96 ,  H01M002/08 ,  H01M004/94

CPC classification number: H01M4/8605 ,  H01M4/96 ,  H01M8/0234 ,  H01M8/0284 ,  H01M8/1004 ,  Y02P70/56

Abstract: In order to reduce an assembling man hour of the constituting part for the fuel battery and prevent wrinkles from being generated in an electrolyte membrane, in a constituting part for a fuel battery having electrodes with catalyst in both pole sides of an electrolyte membrane and provided with gas diffusion layers for promoting diffusion of gas in both outer sides thereof, an integrated product between the gas diffusion layers and the gasket, the gas diffusion layers being made of a carbon fiber or the like and impregnated with a rubber, and forming gaskets is bonded to an integrated product of the electrolyte membrane and the electrodes with catalyst by using a hot press.

Abstract translation: 为了减少用于燃料电池的构成部件的组装时间，并且防止在电解质膜中产生褶皱，在具有在电解质膜的两个极侧具有催化剂的电极的燃料电池的构成部件中， 气体扩散层，用于促进气体在其两个外侧的扩散，气体扩散层和垫圈之间的一体化产物，气体扩散层由碳纤维等制成并浸渍有橡胶，并且形成垫圈被接合 通过使用热压机与电解质膜和电极的催化剂的整合产物。