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A flow guiding polarized plate of fuel battery

A diversion plate and fuel cell technology, applied in the direction of fuel cells, fuel cell parts, battery electrodes, etc., can solve the problems of large effective area and difficult arrangement of plates, and achieve increased power density and active area , Good drainage effect

Active Publication Date: 2007-12-12
SHANGHAI MUNICIPAL ELECTRIC POWER CO +1
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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 flow guiding polarized plate of fuel battery
  • A flow guiding polarized plate of fuel battery
  • A flow guiding polarized plate of fuel battery

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] As shown in Fig. 3 and Fig. 4, a flow guide plate of a fuel cell is a flow guide bipolar plate. The hydrogen flow channel plate B is composed of an intermediate cooling fluid interlayer. The air guide channel plate is provided with a single hole 4 inlets and a double hole 5 air outlet fluid holes. The air inlet fluid holes are divided into four guide air flow grooves 6 , each of the four air-guiding channels divides into four branch air-flow channels 7 in a parallel straight-line shape, and the branch air-guiding channels 7 are brought together to the four air-guiding channels at the other end, and the four air-guiding channels are respectively Enter the air-out fluid hole 5 of the guide bipolar plate near the middle position; the hydrogen-guiding air flow channel plate is provided with single-hole 8 inlet and double-hole 9 outlet hydrogen fluid holes, and the fluid holes for hydrogen inlet are divided into four The hydrogen flow groove 10, the four hydrogen flow groove...

Embodiment 2

[0046] As shown in Figure 5, a flow guide plate of a fuel cell is a flow guide bipolar plate, and the flow guide bipolar plate is composed of a front guide air channel plate and a reverse hydrogen guide air flow channel plate 1. The middle guide cooling fluid interlayer is composed of, and the described air guide slot plate is provided with a single hole 14 into and a double hole 15 out of the air fluid hole, and the air inlet fluid hole is divided into six guide air flow slots, and the six guide air flow slots Each of the grooves is divided into four branch air flow grooves in a parallel straight-line shape, and the branch air flow grooves are collected into the six air flow grooves at the other end, and the six air flow grooves enter the flow diversion bipolar plate respectively. In the air-out fluid hole on the side; the hydrogen-guiding air flow slot plate is provided with a single-hole inlet and a double-hole hydrogen outlet fluid hole, and the hydrogen-inlet fluid hole is...

Embodiment 3

[0049] Please refer to Fig. 3, 4, and 5, a kind of flow guide plate of fuel cell, the flow guide plate is a flow guide bipolar plate. It is composed of a hydrogen guide air flow slot plate and an intermediate cooling fluid interlayer. The air guide slot plate is provided with a single-hole air inlet and four-hole air outlet fluid holes. The air inlet fluid holes are divided into twenty air guide flow slots. Each of the twenty air-guiding channels is divided into two branch air-guiding channels in a parallel straight-line shape. The launder enters the fluid holes for air outlet respectively; the hydrogen-conducting air-flow channel plate is provided with single-hole inlet and four-hole hydrogen-out fluid holes, and twenty hydrogen-conducting airflow grooves are separated from the fluid holes for hydrogen inlet. Each of the twenty hydrogen-conducting air flow grooves divides into two branch hydrogen-conducting air flow grooves in a parallel straight-line shape. The grooves ente...

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Abstract

The invention relates to guiding board of fuel battery, said guiding board is guiding two-way board, said guiding two-way board comprises positive air guiding groove board; negative hydrogen guiding groove board and middle cooling flow interlayer, said guiding two-way 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 air or 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 flow guide 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 the anode end of the mem...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M8/02H01M4/86H01M8/0247
CPCY02E60/50
Inventor 胡里清李丽李拯章波
Owner SHANGHAI MUNICIPAL ELECTRIC POWER CO
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