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Film electrode short detecting device for fuel batter with proton exchange film and detecting method thereof

A fuel cell membrane, proton exchange membrane technology, applied in measurement devices, circuits, secondary batteries, etc., can solve problems such as the need for detection equipment, expensive equipment, and complicated detection processes, and achieve simple detection methods, improved quality, and detection. low cost effect

Active Publication Date: 2008-02-27
SUNRISE POWER CO LTD
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Problems solved by technology

The deficiency of this detection method of prior art is: 1, adopt this method to detect, need special-purpose detection equipment, and equipment cost is expensive; cause some damage

Method used

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  • Film electrode short detecting device for fuel batter with proton exchange film and detecting method thereof

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Embodiment Construction

[0020] Fig. 1 is a kind of specific embodiment of the present invention. The conductive plate 1 is two copper plates, and the electronic multimeter is used as a DC power supply and a resistance meter. Put a membrane electrode containing cathode and anode between two copper plates, and use the weight of a copper plate to flatten the membrane electrode to ensure good electrical contact between the membrane electrode and the copper plate, while maintaining the gap between the two copper plates. not in contact. Adjust the electronic multimeter to the resistance test file, and use the characteristic that the electronic multimeter provides a constant current to the measured element when the electronic multimeter performs resistance testing, and apply a small constant current to the membrane electrode. Connect the two test heads of the electronic multimeter to the two copper plates respectively, observe the change of the resistance reading of the multimeter, and judge whether the me...

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Abstract

A membrane electrode short-circuit detection device for proton-exchange membrane fuel battery and the detection method are provided in the invention. The device is to connect two conductive flat plates and the DC power source, in the connecting circuit, an ohmmeter is connected in; the method is to clap the detected membrane electrode between two conductive flat plates and giving the small constant current on membrane electrode to record the resistance change along the time. If the resistance increases with the time, the membrane electrode has no short circuit; if the resistance is constant, the membrane electrode has the short-circuit point. The merits of invention are in that: it does not need any special device and ha low cost; the method is simple and easy to operate; the detection result can be get from the ohmmeter. The detection process has no destroy to the membrane electrode. The invention provides the reliable device and method and has important meaning for improving membrane electrode quality.

Description

technical field [0001] The invention relates to a proton exchange membrane fuel cell, in particular to a method for detecting whether the membrane electrode of the proton exchange membrane fuel cell is electronically short-circuited. Background technique [0002] The core of a proton exchange membrane fuel cell is two electrodes and an electrolyte membrane placed between them. The two electrodes are the anode and the cathode, both of which are composed of a catalytic layer and a diffusion layer; the electrolyte membrane is a thin solid polymer electrolyte. In order to improve the performance of proton exchange membrane fuel cells (PEMFC), the thickness of the electrolyte membrane is getting thinner and thinner, which makes the preparation of membrane electrodes more and more difficult. During the preparation process, including the handling, placement and processing of the membrane and membrane electrodes, care must be taken to prevent damage to the membrane. However, in th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/02G01R31/36H01M10/48
CPCY02E60/12Y02E60/10
Inventor 徐洪峰赵恩介王金中明平文
Owner SUNRISE POWER CO LTD
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