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Inner wetting proton exchanging film fuel battery

A proton exchange membrane, fuel cell technology, applied in fuel cells, solid electrolyte fuel cells, fuel cell additives, etc., can solve the problems of reduced power density of battery packs, waste of materials, inability to make uniform production and use, etc., to improve effective work. area effect

Inactive Publication Date: 2007-06-06
SHANGHAI MUNICIPAL ELECTRIC POWER CO +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, the length of the entire humidification section or the length of the power generation section increases, thereby reducing the power density of the entire battery pack
[0024] ②The existence of these additional irregular diversion holes makes the processing of the diversion plate and humidification diaphragm of the battery pack humidification section or the diversion plate and electrodes of the power generation section must be specially designed and considered, because the diversion of the humidification section The plates and humidifying diaphragms are completely different from the deflectors and electrodes of the battery segment in shape, and many materials such as sealing rings cannot be uniformly produced and used, thus wasting a lot of materials

Method used

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  • Inner wetting proton exchanging film fuel battery
  • Inner wetting proton exchanging film fuel battery
  • Inner wetting proton exchanging film fuel battery

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] The utility model relates to a fuel cell in which fuel hydrogen, oxidant air, and cooling water enter and exit six guide holes respectively distributed on the upper and lower ends of the guide plate and the electrode.

[0062] Among them, the electrode and the humidification diaphragm are shown in Figure 4, which is provided with an air inlet 1, an air outlet 2, a hydrogen inlet 3, a hydrogen outlet 4, a cooling water inlet 5, and a cooling water outlet 6.

[0063] Among them, the air deflector of the power generation section is shown in Figure 5a, it is provided with air inlet 1, air outlet 2, and the hydrogen deflector is shown in Figure 5b, it is provided with hydrogen inlet 3, hydrogen outlet 4, water guide As shown in Figure 5c, the plate is provided with a cooling water inlet 5 and a cooling water outlet 6.

[0064] Wherein, the air humidification plate of the humidification section is shown in Figure 5d, and it is provided with an air inlet 1' and an air outlet 2...

Embodiment 2

[0069] As shown in Figure 7, it is another kind of fuel cell stack designed and assembled according to the new method of the present invention, its humidification guide plate and humidification diaphragm, and the guide plate and electrode of the battery segment and the embodiment 1, but the difference is that a thick collector panel is used to separate the humidification section and the power generation section, so that the air inlet 1' of the fuel cell, the fuel hydrogen inlet 3', and the cooling water outlet 6' are set On this collector panel, the air outlet 2, hydrogen outlet 4 and cooling water inlet 5 of the fuel cell are arranged on the rear end panel of the fuel cell. Various fluid diversion principles are shown in Figures 7a, 7b, and 7c. The working principle is the same as that of Embodiment 1.

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Abstract

This invention relates to an inner humidification proton exchange membrane fuel battery including a humidification section, a generation section and the said humidification section is set with an air inlet, hydrogen inlet, a cooling water outlet, a humidified air outlet, a humidified hydrogen outlet, inlet for humidified cooling water, the said generation section is set with inlets for humidified air and hydrogen humidified cooling water outlet outlets for air and hydrogen and an inlet for cooling water, the latter three of the humidification section are corresponding to the inlets for humidified air and hydrogen and outlet for humidified cooling water of the generation section, the air outlet, hydrogen outlet and cooling water inlet of which are set at its back panel.

Description

technical field [0001] The invention relates to a fuel cell, in particular to a proton exchange membrane fuel cell with an internal humidifying device. 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. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M8/04H01M8/10H01M8/04492H01M8/1004
CPCY02E60/521Y02E60/50
Inventor 胡里清
Owner SHANGHAI MUNICIPAL ELECTRIC POWER CO