Current track board module of fuel cell

Abstract

Disclosed is a runner plate module for a fuel cell, which comprises at least a runner plate; a first stream guide group is arranged at the central confluence area of the fuel feeding passage and a second stream guide group is arranged at the branch area of the fuel feeding passage; the second stream guide group is symmetrically arranged at two sides of the first stream guide group; the internal side of each second runner plate of the second stream guide group extends towards the central confluence area to the area between two adjacent first runner plates of the first stream guide group and deflects with the direction of the stream between the two adjacent first runner plates and forms stream passages respectively between the second runner plates and the two adjacent first runner plates. With the design of the first stream guide group and the second stream guide group, the fuel feeding passage of the runner plate is of good flow field, so anode material can be evenly distributed in the fuel feeding passage.

Description

【Technical field】 [0001] The invention relates to a fuel cell, in particular to a flow channel plate module of the fuel cell. 【Background technique】 [0002] A fuel cell is a device that directly uses hydrogen-containing fuel and air to generate electricity through electrochemical reactions. Due to the advantages of low pollution, low noise, and high efficiency, fuel cells are energy technologies in line with the trend of the times. Among the various types of fuel cells, the most common are proton exchange membrane fuel cells (PEMFC) and direct methanol fuel cells (DMFC). [0003] refer to figure 1 As shown, a conventional fuel cell flow channel plate module 1 includes a membrane electrode assembly 11 (Membrane Electrode Assemble, abbreviated as MEA), and an anode flow channel plate 12 and a cathode flow channel plate 13 are arranged on the outside thereof. Wherein the membrane electrode group 11 is composed of a proton exchange membrane 111 (Proton Exchange Membrane, PEM...

AI Technical Summary

Problems solved by technology

In other words, the design of this serpentine flow channel has the problem of uneven concentration of methanol

However, the design of the parallel flow channel improves the problem of uneven methanol concentration in the upstream and downstream of the serpentine flow channel, but the flow in each parallel flow channel has the problem of uneven distribution, and when carbon dioxide accumulation occurs in the flow channel, making The flow resistance of the flow channel increases, causing the fuel to easily flow to other flow channels with smaller flow resistance, resulting in the problem that carbon dioxide is not easy to remove

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