Unlock instant, AI-driven research and patent intelligence for your innovation.

A flow guiding polarized plate of fuel battery

A technology of guide plates and fuel cells, which is applied in the directions of fuel cells, fuel cell parts, battery electrodes, etc., can solve the problems of large effective area and difficult arrangement of plates, and achieves increased power density and active area. , the effect of small pressure drop

Active Publication Date: 2009-07-22
SHANGHAI MUNICIPAL ELECTRIC POWER CO +1
View PDF8 Cites 0 Cited by
  • 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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • 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] Such as image 3 , Figure 4 Shown, a kind of diversion pole plate of fuel cell, this diversion pole plate is diversion bipolar plate, described diversion bipolar plate is made up of front guide air channel plate A, reverse side hydrogen guide air channel plate B, The middle guide cooling fluid interlayer is composed of, and the described air guide slot plate is provided with fluid holes with single hole 4 inlets and double holes 5 air outlets. Each of the grooves is divided into four branch air flow grooves 7 in parallel straight-line shape, and the branch air flow grooves 7 are brought together to the four air flow grooves at the other end, and the four air flow grooves respectively enter the flow guide bipolar plate In the fluid hole 5 of the air outlet in the middle position; the hydrogen-guiding airflow slot plate is provided with single-hole 8 inlets and double-hole 9 fluid holes for hydrogen outlet, and the fluid holes for entering hydrogen are divided into four...

Embodiment 2

[0046] Such as Figure 5 Shown, a kind of diversion pole plate of fuel cell, this diversion pole plate is diversion bipolar plate, described diversion bipolar plate is made up of front guide air channel plate, reverse side hydrogen guide air channel plate, middle guide Composed of a cooling fluid interlayer, the air-guiding flow channel plate is provided with a fluid hole with a single hole 14 for air inlet and a double-hole 15 for air outlet. There are four parallel direct-flow branch air flow channels, and the branch air flow channels are collected into the six air flow channels at the other end, and the six air flow channels enter the outlets on both sides of the flow guide bipolar plate In the fluid holes of the air; the hydrogen-guiding airflow slot plate is provided with a single-hole inlet and a double-hole hydrogen outlet fluid hole, and the fluid holes for hydrogen inlet are divided into six hydrogen-guiding airflow grooves, and each of the six hydrogen-guiding airflo...

Embodiment 3

[0049] Please refer to image 3 , 4 , shown in 5, a kind of diversion pole plate of fuel cell, this diversion pole plate is diversion bipolar plate, described diversion bipolar plate is made up of front guide air channel plate, reverse side hydrogen guide air flow channel plate, The middle is composed of a cooling fluid interlayer. The air-guiding flow channel plate is provided with a single-hole air inlet and four-hole air-out fluid holes. The air-inlet fluid holes are divided into twenty air-guiding flow grooves. Each flow channel is divided into two branch air flow channels in a parallel straight-line shape, and the branch air flow channels are brought together to twenty air flow channels at the other end, and the twenty air flow channels enter the outlet and outlet respectively. In the fluid holes of the air; the hydrogen-guiding air flow groove plate is provided with a single-hole inlet and four-hole hydrogen outlet fluid holes, and twenty hydrogen-guiding air-flow groov...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(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