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Flat type fuel cell module and flow field plate thereof

A fuel cell and flow field plate technology, which is applied in the direction of fuel cells, fuel cell additives, fuel cell components, etc., can solve problems affecting fuel cell performance, uneven concentration distribution, etc., to avoid uneven concentration distribution, Improve overall performance and reduce flow resistance

Inactive Publication Date: 2011-07-06
IND TECH RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the flow field plate of a general small fuel cell, the size of the flow channel and manifold is usually smaller than that of a large fuel cell, so the flow resistance of the reaction fluid is relatively increased, which will lead to the concentration of the reaction fluid on the flow field plate Uneven distribution, which affects the performance of the fuel cell

Method used

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  • Flat type fuel cell module and flow field plate thereof
  • Flat type fuel cell module and flow field plate thereof
  • Flat type fuel cell module and flow field plate thereof

Examples

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Embodiment Construction

[0048] see figure 2 The flat-plate fuel cell module according to an embodiment of the present invention mainly includes a flow field plate 10, two sealing members 20 (sealing members) and two core units 30, and each core unit 30 consists of a membrane electrode group, two Composed of a gas diffusion layer and a plurality of collector elements 31, the structure of the membrane electrode group and the gas diffusion layer can refer to figure 1 Membrane electrode assembly 410 and gas diffusion layers 405,406 are shown. In the core unit 30 of this embodiment, the gas diffusion layer and the collector element 31 are arranged on both sides (the anode side and the cathode side) of the membrane electrode group, and the collector element 31 is exposed on the surface of the core unit 30 to facilitate fuel flow. Electrochemical reactions inside the battery module.

[0049] like figure 2 As shown, the flow field plate 10 is sandwiched in the gap G between two core units 30, wherein at...

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Abstract

The invention provides a flat type fuel cell module and a flow field plate thereof.The flow field plate arranged inside a fuel cell module comprises at least two flow channels, a first manifold and a second manifold.The two flow channels are respectively formed on opposite sides of the flow field plate.The first manifold and the second manifold are formed inside the flow field plate.The first manifold and the second manifold communicate with the at least two flow channels.The reaction fluid flows from the first manifold into the flow field plate.Then the reaction fluid flows into the second manifold after passing through the two flow channels.Finally, the reaction fluid is discharged out of the flow field plate via the second manifold.

Description

technical field [0001] The present invention relates to a flow field plate, in particular to a flow field plate arranged in a flat fuel cell module. Background technique [0002] See first figure 1 The single cell structure (single cell) 400 of the known proton exchange membrane fuel cell (Proton Exchange Membrane Fuel Cell, PEMFC) mainly includes a membrane electrode assembly 410 (membrane electrode assembly, MEA), two gas diffusion layers 405, 406 ( gas diffusion layer, GDL) and two flow field plates 401, 402 (fluid flow plate). The inner surfaces of the two flow field plates 401, 402 are respectively formed with independent flow channels (flow channels) 403, 404, which can be used to transport the reaction fluid. The membrane electrode assembly 410 mainly includes a proton exchange membrane 409 1. Anode (anode) catalyst layer 407 and cathode (cathode) catalyst layer 408, wherein the catalyst layers 407, 408 usually have platinum or platinum alloy and other components to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M8/02H01M8/10H01M8/0258H01M8/04276
CPCY02E60/521Y02E60/50
Inventor 陈祈彰许桓瑞张文振曹芳海
Owner IND TECH RES INST
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