Proton exchange film humidifying method for fuel cell

A proton exchange membrane, fuel cell technology, applied in fuel cells, fuel cell additives, solid electrolyte fuel cells, etc., can solve problems such as the problem of stack response that cannot be solved, and achieve the elimination of toxic components, large change range, and change frequency. high effect

Inactive Publication Date: 2005-06-22
北京飞驰绿能电源技术有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The "mosquito-shaped microchannel reaction gas wetting method" cannot solve the problem of response to the stack

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0013] An embodiment of a proton exchange membrane humidification method in a fuel cell proposed by the present invention specifically comprises the following steps:

[0014] First, install the probe of the ultrasonic generator at the entrance of the humidifier;

[0015] Second, link the probe of the ultrasonic generator with the stack power monitor via the computer;

[0016] Third, install an additive storage tank on the humidifier circuit, add hydrogen peroxide, and control the isolation from the humidifying liquid by a solenoid valve;

[0017] Fourth, according to the stack power monitoring signal obtained by the computer, when the stack power is less than or equal to the rated power, the ultrasonic generator does not work; when the stack power is greater than the rated power, the ultrasonic sounder works, and its power is adjusted to match the stack power The power ratio is between 0-0.05, adjust the humidification temperature, the maximum does not exceed 150 ℃;

[0018]...

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Abstract

The present invention belongs to the manufacture technology of fuel cell. The humidizing process of the proton exchange film includes the following steps: installing an energy generator in the inlet of fuel cell humidifier and inputting outer energy to humidifying liquid in control mode; and controlling the energy from the energy generator to the humidifying liquid based on the power change in electric pile and injecting corresponding strong oxidizing liquid to the humidifying liquid when CO content in the fuel H2 excesses 100 ppm to convert CO into CO2 and to maintain the stability of electric pile fuel gas component. The present invention is adaptive to drastic electric pile running condition.

Description

technical field [0001] The invention belongs to the technical fields of energy and power generation, and in particular relates to the manufacturing technology of fuel cells. Background technique [0002] The purpose of humidifying the proton exchange membrane in a fuel cell is to maintain the ability of the proton exchange membrane to transport protons. Insufficient humidification will result in poor transport capacity of the proton exchange membrane, which will affect the performance of the battery. Excessive humidification will flood the electrodes and cause Battery performance declines, therefore, humidification is the technical key of proton exchange membrane fuel cell. [0003] The patent (Chinese patent application, application number 97182101) applied by Artur Kosani, Christian Lucas and Thomas Schweisiger of Germany Magneto Technology Co., Ltd. relates to a polymer electrolyte—an exchange membrane for a fuel cell Humidification method, which uses air with low overpr...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): H01M4/88H01M4/94H01M8/04H01M8/04828H01M8/1004
CPCY02E60/50Y02P70/50
Inventor曾宪林毛宗强王利生
Owner北京飞驰绿能电源技术有限责任公司