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A temperature-controlled bipolar plate with inner fins and its working method

A bipolar plate and anode plate technology, applied in fuel cells, electrochemical generators, electrical components, etc., can solve problems such as overheating of electrochemical reaction devices, achieve the effects of overcoming local overheating problems, optimizing processes, and reducing processing costs

Active Publication Date: 2021-05-25
XI AN JIAOTONG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In order to overcome the deficiencies of the prior art, the purpose of the present invention is to provide an inner-fin temperature-controlled bipolar plate and its working method, which can solve the problem of local overheating of the electrochemical reaction device and improve the rapid response characteristics of the restart of the stack

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  • A temperature-controlled bipolar plate with inner fins and its working method
  • A temperature-controlled bipolar plate with inner fins and its working method
  • A temperature-controlled bipolar plate with inner fins and its working method

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Embodiment Construction

[0042] The present invention will be described in further detail below in conjunction with specific examples, but not as a limitation of the present invention.

[0043] In the drawings, components with the same structure are denoted by the same numerals, and components with similar structures or functions are denoted by similar numerals. The size and thickness of each component shown in the drawings are shown arbitrarily, and the present invention does not limit the size and thickness of each component. In order to make the illustration clearer, the thickness of parts is appropriately exaggerated in some places in the drawings.

[0044] see Figure 1-4 , the inner-fin temperature-controlled bipolar plate of the present invention includes a cathode plate 1 and an anode plate 2, the cathode plate 1 and the anode plate 2 are hollow structures, the cathode plate 1 etches flow channels on one side, and the anode plate 2 etches flow channels on both sides The ratio of the thicknes...

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Abstract

The invention discloses an inner-fin temperature-controlled bipolar plate and a working method thereof. The inner-fin temperature-controlled bipolar plate includes a cathode plate and an anode plate. The cathode plate is processed on one side and the anode plate is processed on both sides. The process is optimized and the processing cost is reduced. The present invention adopts the design that the cooling liquid flow direction is perpendicular to the fuel flow direction, which accelerates the whole-field average process of heat and overcomes the local overheating problem of the bipolar plate; the present invention utilizes phase-change materials to absorb the heat released by electrochemical reactions, and It can effectively improve the energy utilization efficiency of reactants. It not only outputs electric energy, but also stores waste heat through phase change materials as a thermal insulation heat source during the stack standby process. It saves energy and improves the rapid response characteristics of stack restart.

Description

technical field [0001] The invention relates to the field of electrochemical reaction devices, in particular to an inner-fin temperature-controlled bipolar plate and a working method thereof. Background technique [0002] With the development of industrial society, the consumption of fossil energy remains high, followed by a large number of emissions of greenhouse gases, which cause a series of problems such as global warming. The research and development of new energy is a hot topic in the industry and academia. As a high-efficiency device for energy conversion, the electrochemical reaction device has attracted widespread attention because of its high energy conversion efficiency, low emission or even zero emission, and has a promising application prospect. Electrochemical energy supply devices represented by fuel cells and electrochemical energy storage devices represented by flow batteries are typical devices for electrochemical reaction devices. Redox reactions essentia...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M8/026H01M8/0263
CPCH01M8/026H01M8/0263Y02E60/50
Inventor 李印实邓世培
Owner XI AN JIAOTONG UNIV
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