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A hydrogen flow guiding slot plate of fuel battery

A fuel cell and air flow groove technology, which is applied in the parts, electrical components, battery electrodes and other directions of fuel cells, can solve the problems of difficult layout and large effective area of ​​the plate, and achieves increased active area, increased power density, and improved performance. The effect of the drainage effect

Active Publication Date: 2007-12-12
SHANGHAI MUNICIPAL ELECTRIC POWER CO +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The design feature of these diversion bipolar plates is that one or more pairs of inlet and outlet fluid holes at the two ends of the bipolar plate are symmetrically distributed at the two ends of the plate, occupying a large effective area of ​​the plate, and multiple different fluid holes It is difficult to arrange between the same end

Method used

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  • A hydrogen flow guiding slot plate of fuel battery
  • A hydrogen flow guiding slot plate of fuel battery

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] As shown in Fig. 3, a kind of hydrogen-conducting flow channel plate of fuel cell, this hydrogen-conducting flow channel plate is made up of the veneer B of one side hydrogen-conducting flow channel plate, described hydrogen-conducting flow channel plate is provided with single hole 4 inlets, The fluid hole that goes out of double hole 5 air; Described hydrogen-guiding airflow channel plate is provided with the fluid hole that single hole 8 enters, and double hole 9 goes out hydrogen, and the fluid hole that enters hydrogen divides four hydrogen-guiding airflow grooves 10, and these four guide Each of the hydrogen flow grooves divides into four branch hydrogen flow grooves 11 in a parallel straight-line shape, and the branch hydrogen flow grooves 11 are brought together to the four hydrogen flow grooves at the other end, and the four hydrogen flow grooves respectively enter the outlet of the hydrogen gas. In the fluid hole 9; the hydrogen-guiding air flow groove plate is...

Embodiment 2

[0043] As shown in Figure 4, a hydrogen-conducting airflow channel plate of a fuel cell, the hydrogen-conducting airflow channel plate is a flow-conducting unipolar plate, and the hydrogen-conducting airflow channel plate is provided with a single-hole inlet and a double-hole air-out fluid Holes; the hydrogen-guiding airflow slot plate is provided with single-hole 14 inlets and double-hole 15 hydrogen-out fluid holes, and the fluid holes for entering hydrogen are divided into six hydrogen-guiding airflow grooves, and these six hydrogen-guiding airflow grooves are divided into four respectively. Parallel straight-line branch hydrogen flow grooves, the branch hydrogen flow grooves are collected into the six hydrogen flow grooves at the other end, and the six hydrogen flow grooves respectively enter the hydrogen outlet fluid holes on both sides; The hydrogen-guiding air flow groove plate is provided with double holes for inlet and double holes for fluid holes for cooling fluid; th...

Embodiment 3

[0046] Please refer to Figures 3 and 4, a hydrogen-conducting airflow channel plate for a fuel cell, the hydrogen-conducting airflow channel plate is a flow-conducting unipolar plate, and the hydrogen-conducting airflow channel plate is provided with a single-hole inlet and four-hole outlet Fluid holes for air; the hydrogen-conducting air flow slot plate is provided with single-hole inlet and four-hole hydrogen outlet fluid holes, and twenty hydrogen-conducting air-flow slots are separated from the hydrogen-inlet fluid holes, and the twenty hydrogen-conducting air flow slots Each separates two branch hydrogen flow channels in a parallel straight-line shape, and the branch hydrogen flow channels are brought together to twenty hydrogen flow channels at the other end, and the twenty hydrogen flow channels enter the hydrogen outlet respectively. In the fluid hole; the hydrogen-conducting airflow trough plate is provided with two-hole inlet and four-hole outlet fluid holes for the c...

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PUM

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Abstract

The invention relates to hydrogen guiding groove board of fuel battery, said hydrogen guiding groove board comprises positive hydrogen guiding groove board; negative surface is flat board or single board with cooling flow groove, said hydrogen guiding groove board possesses flow hole for air, hydrogen, cooling liquid and guiding groove which is connected between flow holes; said flow hole which air or hydrogen in and out is single hole for in, two or more hole for out, the guiding groove which is designed between hydrogen holes is designed to direct flow groove or nearly direct flow groove; said flow hole for cooling liquid is single hole or double holes or more holes for in, two holes or more holes for out, guiding groove which is set between flow hole for cooling liquid is designed to direct flow groove or nearly direct flow groove. Comparing with current technique, the invention can decrease resistance and pressure reduction, liquid can flow on liquid field evenly, effective area can be increased; jam of guiding groove can be avoided.

Description

technical field [0001] The invention relates to a fuel cell, in particular to a hydrogen-conducting gas flow groove plate of the fuel cell. Background technique [0002] An electrochemical fuel cell is a device that converts hydrogen fuel and oxidant into electrical energy and reaction products. The internal core component of the device is the membrane electrode (Membrane Electrode Assembly, referred to as MEA). The membrane electrode (MEA) is composed of a proton exchange membrane and two porous conductive materials, such as carbon paper, sandwiched between the two sides of the membrane. On the two boundary surfaces of the membrane and the carbon paper, there are even and finely dispersed catalysts for initiating electrochemical reactions, such as metal platinum catalysts. Conductive objects can be used on both sides of the membrane electrode to draw the electrons generated during the electrochemical reaction through an external circuit to form a current loop. [0003] At...

Claims

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Application Information

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IPC IPC(8): H01M8/02H01M4/86H01M8/026
CPCY02E60/50
Inventor 胡里清李丽李拯章波
Owner SHANGHAI MUNICIPAL ELECTRIC POWER CO
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