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Fuel cell electrode plate structure and galvanic pile

A fuel cell pole plate and pole plate technology, which is applied to fuel cells, circuits, electrical components, etc., can solve the problems of unreasonable assembly, uneven distribution of reaction gases, and improper structure design of PEMFC, and achieve uniform performance and improve comprehensive performance. performance, improved utilization

Active Publication Date: 2019-05-31
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, due to factors such as improper structural design and unreasonable assembly of PEMFC, the reaction gas is often unevenly distributed between the plates and the single cells, which affects the improvement of the output performance of the fuel cell.

Method used

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  • Fuel cell electrode plate structure and galvanic pile
  • Fuel cell electrode plate structure and galvanic pile
  • Fuel cell electrode plate structure and galvanic pile

Examples

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Embodiment Construction

[0027] The present disclosure will be further described below in conjunction with the accompanying drawings and embodiments.

[0028] It should be pointed out that the following detailed description is exemplary and intended to provide further explanation to the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0029] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and / or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and / or combinati...

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Abstract

The disclosure provides a fuel cell electrode plate structure and a galvanic pile. The electrode plate structure includes an electrode plate having a fuel inlet, an air inlet, a coolant inlet, a fueloutlet, an air outlet, and a coolant outlet. A flow path is disposed between the air inlet and the air outlet to form a flow field. The flow path includes a plurality of flow limiting passages. Each flow limiting passage is provided with an inlet and an outlet to restrict the flow velocity or / and the flow rate. A plurality of branch channels are disposed between the inlet-side and outlet-side flowlimiting passages. The bottom surface of each branch channel has a certain inclination angle with a plane wherein the electrode plate is located.

Description

technical field [0001] The disclosure relates to a fuel cell pole plate structure and a stack. Background technique [0002] The statements in this section merely provide background information related to the present disclosure and do not necessarily constitute prior art. [0003] Proton exchange membrane fuel cell (PEMFC) has the advantages of environmental protection, high energy density, high power generation efficiency, and fast start-up speed, and is considered to be one of the most potential future vehicle power sources. In practical applications, due to the low output power of a single-chip PEMFC, multiple single cells are connected in series to meet the user's demand for power or voltage in the form of a battery stack. [0004] When PEMFC is working, the performance of each single cell in the stack must be consistent. However, due to factors such as improper structural design and unreasonable assembly of PEMFC, the reaction gas is often unevenly distributed between...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M8/0258H01M8/0263H01M8/0265H01M8/241
CPCY02E60/50
Inventor 刘洪建李国祥张国栋周博孺王桂华白书战孙强
Owner SHANDONG UNIV