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A hydrogen flow guiding slot plate of fuel battery

A technology of fuel cells and air flow slots, which is applied to fuel cell parts, electrical components, battery electrodes, etc., can solve the problems of large effective area of ​​the board and difficult arrangement, and achieve increased power density, increased active area, and pressure The effect of reducing

Active Publication Date: 2009-09-02
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
  • A hydrogen flow guiding slot plate of fuel battery

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Such as image 3 As shown, a hydrogen-conducting air flow channel plate of a fuel cell is composed of a single plate of a hydrogen-conducting air flow channel plate B, and the hydrogen-conducting air flow channel plate is provided with a single hole 4 inlets and a double hole 5 Out of the fluid hole of the air; the hydrogen-guiding airflow slot plate is provided with single-hole 8 inlets and double-hole 9 hydrogen-out fluid holes; Each separates four branch hydrogen flow grooves 11 in a parallel straight-line shape, and the branch hydrogen flow grooves 11 are brought together to the other four hydrogen flow grooves at the other end, and the four hydrogen flow grooves respectively enter the fluid holes 9 for hydrogen outlet In; the hydrogen-guiding air flow groove plate is provided with double holes into 12, and double holes out of 13 fluid holes for cooling fluid, and the fluid holes entering the cooling fluid are divided into four guiding cooling fluid grooves, and the...

Embodiment 2

[0043] Such as Figure 4 As shown, a hydrogen-conducting airflow channel plate of a fuel cell, the hydrogen-conducting airflow channel plate is a flow-guiding unipolar plate, and the hydrogen-conducting airflow channel plate is provided with a fluid hole with a single hole in and a double hole out of the air; The hydrogen-guiding air flow groove plate is provided with a single hole 14 into and a double hole 15 out of the fluid hole of hydrogen, the fluid hole into the hydrogen is divided into six hydrogen-guiding air-flow grooves, and the six hydrogen-guiding air-flow grooves are respectively separated into four in a parallel direct-flow shape The branched hydrogen flow grooves, the branched 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 trough plate is provided with two holes for inlet and two holes for fluid holes for cooling fluid...

Embodiment 3

[0046] Please refer to image 3 , 4 As shown, 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 fluid hole with a single hole in and four holes out of air; The hydrogen-guiding airflow groove plate is provided with single-hole inlet and four-hole hydrogen-outflow fluid holes, and twenty hydrogen-guiding airflow grooves are divided into the hydrogen-inflow fluid holes, and each of the twenty hydrogen-guiding airflow grooves is divided into two. Parallel straight-line branch hydrogen flow grooves, the branch hydrogen flow grooves are collected into twenty hydrogen flow grooves at the other end, and the twenty hydrogen flow grooves enter the fluid holes for hydrogen respectively; The hydrogen-conducting flow channel plate is provided with two holes for entering and four holes for cooling fluid. The fluid holes for enter...

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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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Patent Type & Authority Patents(China)
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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