Abstract:
The invention relates to a fuel cell with two electrodes, an electrolyte layer situated therebetween and a gas distribution structure for distributing an operating material over at least one of the electrodes. The gas distribution structure is provided with several modular gas distribution units which are advantageously connected with each other. One modular gas distribution unit is especially configured as tube piece that is provided with one or more openings which lead to the adjacent electrode. The structure can compensate for changes in length caused by thermal factors. Mechanical damage is avoided accordingly.
Abstract:
Disclosed is a new cooling system for a fuel cell battery, comprising at least two fuel cells (7a, 7b), each of which includes a membrane electrode unit and two collector plates. Between the various fuel cell units there are cooling plates (1, 2), preferably crossed by a cooling agent and interconnected by wires (5, 6). Also disclosed is a method for producing fuel cell batteries, whereby either thermoconductive or thermoconductive and electroconductive glues are used for making a conductive connection between the component parts of the battery.
Abstract:
The invention provides an integrated multi-channel battery analyzer including one or more measurement units and accompanying pluggable battery capsules that physically and electrically connect to the measurement unit(s) to obtain multiple measurements simultaneously of electro-chemical properties for flowable materials, e.g., flowable batteries. The battery capsules are in a stacked configuration and include electrical components, e.g., positive and negative electrodes, and positive and negative flow channels through which the positive and negative electrolyte travels, respectively, as well as a separator positioned between the flow channels, and at least one pump. In addition, the battery capsules have a small size as compared to battery capsules known in the art.
Abstract:
L'invention concerne une plaque (1) de pile à combustible disposée dans un plan vertical lorsqu'elle est en position d'utilisation, la plaque (1) comportant un orifice collecteur de sortie (4) de réactif, une face de refroidissement et une face réactive (16) formant un circuit de réactif (11) comportant une sortie débouchant dans un orifice d'évacuation (7) de réactif, la position d'utilisation verticale de la plaque définissant une direction longitudinale verticale entre un bord supérieur et un bord inférieur de la plaque (1), l'orifice d'évacuation (7) s'étendant selon la direction longitudinale verticale entre une extrémité supérieure et une extrémité inférieure, l'orifice collecteur de sortie (4) s'étendant selon la direction longitudinale verticale entre une extrémité supérieure et une extrémité inférieure et comportant un bord interne supérieur et un bord interne inférieur.
Abstract:
Described herein is a fuel, oxidant or coolant inlet/outlet structure (1) of a stackable bipolar plate (2) where an anode sheet (2a) and a cathode sheet (2b) are bonded together and has one or more pairs of fuel, oxidant or coolant inlet/outlet passages (3). Sealants (4, 5) are placed around the perimeters of the inlet/outlet passages (3) and along a perimeter of the bipolar plate (2). A plurality of conduits (6) provide for fluid communication between the fuel or oxidant inlet/outlet passages (3) and an associated active area (9) at the anode sheet (2a) or cathode sheet (2b) or fluid communication between the coolant inlet/outlet passages (3) and a cooling channel located between the sheets (2a, 2b). Each conduit (6) comprises a first cross-section half (11), integrally formed with the anode sheet (2a), and a second cross-section half (12), integrally formed with the cathode sheet (2b), and arranged complementary opposing each. The respective perimeters of the first and second cross-section halves (11, 12) form arch bridges, supporting their associated conduit (6) below the sealant (4).
Abstract:
Die Erfindung betrifft ein Strömungselement für eine Bipolarplatte (16) einer elektrochemischen Einrichtung, umfassend einen plattenförmigen, in zwei im Winkel zueinander ausgerichteten Haupterstreckungsrichtungen (26, 28) erstreckten Grundkörper (24), wobei der Grundkörper (24) eine Kanalstruktur (50) mit einer Mehrzahl von Kanälen zum Ausbilden eines aktiven Bereiches (22) des Strömungselementes (18; 84; 96) umfasst, wobei im Grundkörper (24) eine Einströmöffnung (46) und eine Ausströmöffnung (58) für ein Fluid gebildet sind, die mit der Kanalstruktur (50) über einen Einströmbereich (48) mit Einström-Kanalstruktur (76) bzw. über einen Ausströmbereich (54) mit Ausström-Kanalstruktur (78) strömungsverbunden sind, wobei ein Druckverlust des von der Einströmöffnung (46) zur Ausströmöffnung (58) strömenden Fluids über den Ausströmbereich (54) größer ist als über den Einströmbereich (48) und/oder über den aktiven Bereich (22). Außerdem betrifft die Erfindung eine Bipolarplatte (16) und eine Brennstoffzelleneinrichtung (10).
Abstract:
A four-fluid bipolar plate for a fuel cell includes an oxidant flow field, a fuel reactant flow field, a dedicated coolant passage, and a water management flow field. The bipolar plate includes at least one porous layer. A first side of the porous layer is fluidly connected to the water management flow field via a plurality of pores that act as a bubble barrier. An opposing second side of the porous layer includes either the fuel reactant flow field or the oxidant flow field. In one example, the dedicated coolant passage is internal to the bipolar plate, and may be configured to flow an antifreeze-type coolant.
Abstract:
본 발명의 연료전지용 비선형 다공체는 전기 에너지 생산 효율이 향상시키는 것을 목적으로 한다. 이를 위한 본 발명의 연료전지용 비선형 다공체는 유체의 흐름 방향인 길이 방향을 따라서 수직 단면이 굴곡지게 형성되는 베이스부 및 상기 베이스부를 관통하고, 유체의 이동 경로가 비선형이 되도록 상기 베이스부의 길이 방향을 따라서 비선형 패턴으로 이루어진 유체 관통부를 포함한다. 이에 따라, 본 발명에 따른 연료전지용 비선형 다공체가 연료전지에 적용되는 경우, 기체와 기체 확산층과의 반응 면적을 극대화시킴으로써 셀의 출력을 증가시키게 되며, 이는 전체 연료전지의 성능을 개선하여 단위 크기당 더욱 많은 전기 에너지를 생성할 수 있게 되어 수소차량의 제조비용을 절감하면서 콤팩트화 할 수 있다.
Abstract:
Die Erfindung betrifft eine Verteilerplatte (100) für eine Bipolarplatte (BPP) eines Brennstoffzellensystems (S), aufweisend: eine erste Seite (101) zum Verteilen eines Reaktanten (R), insbesondere eines brennstoffhaltigen Reaktanten (H2), wobei die erste Seite (101) ein erstes Strömungsfeld (10) mit einer Vielzahl an ersten Strömungskanälen (11) für den Reaktanten (R) aufweist, und eine zweite Seite (102) zum Verteilen eines Kühlmittels (KM), wobei die zweite Seite (102) ein zweites Strömungsfeld (20) mit einer Vielzahl an zweiten Strömungskanälen (21) für das Kühlmittel (KM) aufweist, wobei das erste Strömungsfeld (10) komplementär zum zweiten Strömungsfeld (20) in die Verteilerplatte (100) eingeprägt ist, und wobei das gesamte zweite Strömungsfeld (20) verteilbereichsfrei und deckend zu der gesamten aktiven Fläche der Bipolarplatte (BPP) ausgeführt ist.