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Bipolar plate for fuel cell

A fuel cell and bipolar plate technology, which is applied to fuel cells, fuel cell components, circuits, etc., can solve problems such as poor drainage, poor fuel cell performance, and short fuel residence time.

Pending Publication Date: 2021-12-24
素水新材料(上海)有限公司 +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] At present, the bipolar plates for fuel cells still have technical problems such as poor drainage and too short or too long residence time of fuel in the stack, which lead to poor performance of fuel cells. Therefore, it is necessary to develop and design a bipolar plate that can Bipolar plates that further improve reaction efficiency

Method used

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  • Bipolar plate for fuel cell
  • Bipolar plate for fuel cell
  • Bipolar plate for fuel cell

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Embodiment Construction

[0024] In order to understand the technical content of the present invention more clearly, the following examples are given in detail, the purpose of which is only to better understand the content of the present invention but not to limit the protection scope of the present invention. The components in the structures in the drawings of the embodiments are not scaled according to the normal scale, so they do not represent the actual relative sizes of the structures in the embodiments. The above or upper side of the structure or surface includes the case where there are other layers in the middle.

[0025] figure 1 It is a schematic diagram of Embodiment 1 of the bipolar plate of the embodiment of the present invention; figure 2 It is a schematic diagram of Embodiment 2 of the bipolar plate of the embodiment of the present invention; image 3 It is a schematic diagram of Embodiment 3 of the bipolar plate of the embodiment of the present invention; Figure 4 It is a schematic...

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Abstract

The embodiment of the invention discloses a bipolar plate for a fuel cell, which comprises a cathode reaction flow field, a first fuel notch and a second fuel notch, wherein the cathode reaction flow field comprises a main reaction flow field located in the middle and two flow guide flow fields located at the two ends of the main reaction flow field, wherein each flow guide flow field comprises a plurality of flow guide flow channels, one flow guide flow field is communicated with the first fuel notch and the main reaction flow field, the other flow guide flow field is communicated with the second fuel notch and the main reaction flow field, and the multiple flow guide flow channels are in a radial shape diverging towards the main reaction flow field by taking the first fuel notch or the second fuel notch as a starting point. According to the invention, the fuel can be fully distributed on the whole cathode reaction flow field, and all the fuel entering the reaction flow field participates in electrochemical combustion reaction, so that the electrochemical reaction efficiency of the reaction field is effectively improved, some reaction dead zones or reaction dead angles possibly existing in the reaction field are effectively eliminated, and the reaction efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of fuel cells, in particular to a bipolar plate for fuel cells with high combustion reaction efficiency and good safety performance. Background technique [0002] Fuel cells have always been recognized as the first choice for the next generation of clean energy, and one of the powerful tools for realizing the harmonious coexistence between the environment and human beings in the future. In view of this, more and more researches on fuel cells have been carried out; fuel cells are in accordance with Different electrolytes are divided into proton exchange membrane fuel cells, solid oxide fuel cells, molten carbonate fuel cells, phosphoric acid fuel cells, etc. In the entire fuel cell system, the stack is the core device of the fuel cell. It can be said that all fuel cells are inseparable from the stack device. [0003] At present, the bipolar plates for fuel cells still have technical problems such as poor dr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M8/0258H01M8/026H01M8/0263
CPCH01M8/0258H01M8/026H01M8/0263Y02E60/50
Inventor 彭曦锋刘家和楼子宜翟凤霞
Owner 素水新材料(上海)有限公司
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