Fuel cell bipolar plate

A fuel cell and bipolar plate technology, applied in fuel cells, circuits, electrical components, etc., can solve problems such as hindering electrochemical reactions, water cannot be drained in time, PEMFC performance, and lifespan decline, so as to avoid adverse effects and avoid The effect of uneven distribution of reactants

Pending Publication Date: 2019-08-02
XIAN THERMAL POWER RES INST CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Existing studies have shown that if the design of the plate flow field is unreasonable and the flow resistance is large, the supply of fuel and oxidant will be uneven, and the water produced by the reaction cannot be draine

Method used

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  • Fuel cell bipolar plate
  • Fuel cell bipolar plate
  • Fuel cell bipolar plate

Examples

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Example Embodiment

[0028] The present invention will be described in further detail below in conjunction with the accompanying drawings:

[0029] reference Figure 1 to Figure 6 The anode plate 1, the cathode plate 6 and the two cooling plates 7 of the fuel cell bipolar plate of the present invention, wherein the anode plate 1 and a cooling plate 7 are overlapped and connected sequentially from bottom to top, and the cathode plate 6 is connected to the other The cooling plate 7 is overlapped and connected in order from top to bottom. The anode plate 1 and the cathode plate 6 and the membrane electrode sandwiched between the anode plate 1 and the cathode plate 6 form a fuel cell unit. Specifically, the anode plate 1 and the cathode plate 6 And the cooling plate 7 are connected by bolting, welding or bonding.

[0030] The upper surface of the anode plate 1 is provided with a hydrogen horizontal circulation channel 8, the upper surface of the cathode plate 6 is provided with an air horizontal circulati...

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PUM

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Abstract

The invention discloses a fuel cell bipolar plate, which comprises an anode plate, a cathode plate and two cooling plates, wherein the anode plate is sequentially superimposed, covered and connected with one cooling plate from bottom to top, the cathode plate is sequentially superimposed, covered and connected with the other cooling plate from top to bottom, the anode plate and the cathode plate constitute a fuel cell unit with a membrane electrode clamped between the anode plate and the cathode plate, the upper surface of the anode plate is provided with a hydrogen horizontal flow channel, the upper surface of the cathode plate is provided with an air horizontal flow channel, and the upper surface of each cooling plate is provided with a cooling liquid horizontal flow channel; and the anode plate, the cathode plate and the cooling plates are respectively provided with a plurality of hydrogen vertical flow channels, air vertical flow channels and cooling liquid vertical flow channels.The bipolar plate is small in flow resistance and can enable the temperature field inside the cell to be uniform in distribution.

Description

technical field [0001] The invention belongs to the field of fuel cells and relates to a fuel cell bipolar plate. Background technique [0002] At present, with the extensive use of fossil fuels, the greenhouse effect has become one of the most pressing environmental issues in the world, thus generating a strong demand for new clean energy technologies. Fuel cells are attracting more and more attention as a clean energy. Among various types of fuel cells, the proton exchange membrane fuel cell (PEMFC) is the most promising one, which has the advantages of high energy conversion efficiency, low operating temperature, multiple fuels, no noise and zero emissions. [0003] A PEMFC unit is composed of bipolar plates (anode plate and cathode plate) and a membrane electrode assembly (MEA) sandwiched between the bipolar plates. The MEA is responsible for the electrochemical reaction, while the bipolar plate mainly supports, collects, separates the fuel and the oxidant, and guides ...

Claims

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Application Information

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IPC IPC(8): H01M8/0267H01M8/0258
CPCH01M8/0258H01M8/0267Y02E60/50
Inventor 吴帅帅杨玉张磊高炜李红智张一帆
Owner XIAN THERMAL POWER RES INST CO LTD
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