Process for preparing proton composite exchange membrane for high temperature proton exchange membrane fuel battery

A proton exchange membrane and fuel cell technology, which is used in the field of preparation of proton exchange membrane composite membranes, can solve the problem that proton exchange membranes cannot work effectively at high temperatures, and achieve strong water absorption and water retention capabilities, large surface area, high water absorption and The effect of water retention capacity
CN1545156AInactive Publication Date: 2004-11-10WUHAN UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
WUHAN UNIV OF TECH
Publication Date
2004-11-10
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a method of preparing proton exchange compound film used for a fuel cell, a preparing method of proton exchange compound film used for a high temperature proton exchange film fuel cell, and the preparing method as follows: (1) immersing the proton exchange film into a mixed solution of oxide precursor and alcohol in a bulk ratio of 1 to 5-3 to 2, and sealing and placing at normal temperature for 10-14 hours; (2) taking the film out of the mixed solution, and blotting the solution on the film surface with filter paper; (3) immersing the film into a mixed solution of alcohol and water in a bulk ratio of 1 to 1-5 to 1 and blending for 1-30 minutes; (4) taking the film out, firstly airing at room temperature and then drying at 100 deg.C in vacuum for 6-48 hours. The product prepared has the characters of being able to effectively working at 80deg.C-140deg.C, and higher water -absorbing and -preserving abilities.
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Description

technical field

[0001] The invention relates to a preparation method of a proton exchange membrane composite membrane for a proton exchange membrane fuel cell. Background technique

[0002] Proton exchange membrane fuel cell (PEMFC) has become an ideal energy source for electric vehicles due to its advantages of no noise, zero pollution, no corrosion, long life, high working current, high specific power, fast cold start, etc. It can also be used as a military and civilian portable Power supply has a very broad application prospect. The proton exchange membrane is one of the key materials of the proton exchange membrane fuel cell. It can not only provide hydrogen ion channels for the electrolyte in the fuel cell, but also serve as a diaphragm to isolate the two poles of the reaction gas. At present, the working temperature of proton exchange membrane fuel cells generally needs to be controlled below 80°C. This is because when the temperature exceeds 80°C, the evaporation rat...

Claims

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