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Conductivity representing device for proton exchange membrane

A proton exchange membrane and conductivity characterization technology, applied in the direction of material impedance, material resistance, etc., can solve problems such as inability to characterize, and achieve the effects of reducing test errors, various assembly methods, and accurate test data

Inactive Publication Date: 2013-05-01
SHANGHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Devices widely used today are not capable of characterizing them accurately and quickly

Method used

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  • Conductivity representing device for proton exchange membrane
  • Conductivity representing device for proton exchange membrane
  • Conductivity representing device for proton exchange membrane

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] see Figure 1~Figure 3 , a proton exchange membrane conductivity characterization device, combined with an electrochemical workstation or an AC impedance tester to quickly measure the conductivity of the proton exchange membrane, including a fixed frame, a membrane clamp 5 and a pressurizing device; the fixed frame is composed of an upper base plate 1. A lower base plate 2 and two support screws 3 are assembled to form an overhead installation and unloading space for the film clamp 5 between the left and right support screws 3 and between the upper base plate 1 and the lower base plate 2. Each support screw The bottom end and the top end of 3 are vertically fixedly assembled and connected with the lower base plate 2 and the upper base plate 1 respectively, the upper base plate 1 and the lower base plate 2 are arranged in parallel, and there are at least two film clamp fixing rods 4 vertically fixed and installed on the two supports on the lower base plate 2 Between the ...

Embodiment 2

[0043] This example is basically the same as Implementation 1, the special features are:

[0044] In the present embodiment, the specific test steps of the conductivity of the proton exchange membrane are as follows:

[0045] (1) Same as Embodiment 1.

[0046] (2) Same as Embodiment 1.

[0047] (3) Production of variable components:

[0048] Membrane fixture 5: 74 mm * 40 mm * 10 mm (length, width and height) two polytetrafluoroethylene plates, there is a 10 mm * 10 mm * 1 mm (length, width and depth) electrode groove in the middle of the polytetrafluoroethylene plate, And lead out two 17.5 mm * 0.8 mm * 1 mm wire slots from both sides. There are screw holes with a diameter of 6.5 mm for fixing on the four corners of the polytetrafluoroethylene plate placed below, and there are screw holes with a diameter of 8.5 mm for fixing at the four corners of the polytetrafluoroethylene plate placed above.

[0049] Electrodes: Two 10 mm * 10 mm * 1 mm square platinum electrod...

Embodiment 3

[0051] This example is basically the same as the previous implementation, except that:

[0052] In the present embodiment, the specific test steps of the conductivity of the proton exchange membrane are as follows:

[0053] (1) Same as the previous embodiment.

[0054] (2) Same as the previous embodiment.

[0055] (3) Production of variable components:

[0056] Membrane fixture 5: 74 mm * 40 mm * 10 mm (length, width and height) two polytetrafluoroethylene plates, the upper and lower polytetrafluoroethylene plates have electrode slots of 40 mm * 0.8 mm * 1 mm, two for each of the upper and lower plates, The distance between adjacent electrode grooves is 2 mm after the upper and lower plates of the membrane fixture overlap. There are screw holes with a diameter of 6.5 mm for fixing on the four corners of the polytetrafluoroethylene plate placed below, and there are screw holes with a diameter of 8.5 mm for fixing at the four corners of the polytetrafluoroethylene plate place...

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Abstract

The invention discloses a conductivity representing device for a proton exchange membrane, which is used for quickly measuring the conductivity of the proton exchange membrane through the combination with an electrochemical workstation or an alternating-current impedance tester, and includes a fixing rack, membrane fixtures and a pressure device, wherein the fixing rack is formed through assembling an upper bottom plate, a lower bottom plate and two supporting screws; the membrane fixtures are at least in one group and are made of insulating material plates; each group of the membrane fixtures includes two clamping plates tightly overlapped and combined; the proton exchange membrane whose conductivity is to be tested and an electrode to be tested are placed between the two clamping plates of each group of the membrane fixtures; and the pressure device includes a pressing screw, a pressing buffer plate and a spring. Accurate testing result can be obtained through adjusting measurement parameters of the device to be matched with various proton exchange membranes with different proton conductivity for use, so that the measuring requirements of proton exchange membranes with different proton conductivity ranges can be met; and the device has the advantages of ingenious design, stable structure and stronger practicability.

Description

technical field [0001] The invention relates to an electrochemical test and measurement method, especially a proton exchange membrane performance test method, which can be used in combination with SI1287 electrochemical interface (Solartron) electrochemical workstation and 1255B frequency response analyzer (Solartron) AC impedance tester to quickly and accurately The conductivity of the proton exchange membrane was measured accurately. Background technique [0002] Today, when new energy is widely concerned, fuel cells have become an important development direction of new energy technology due to their high efficiency, energy saving, safety and environmental protection. Among various types of fuel cells, proton exchange membrane fuel cells have become the main development direction of fuel cells due to their superior performance. Among them, proton exchange membrane and electrocatalyst are two key materials of proton exchange membrane fuel cell, which play a decisive role i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/02G01N27/07
Inventor 岳宝华张晓明严六明孙超张叶沛刘慧婷韩帅元苏俊铭谢丽青
Owner SHANGHAI UNIV
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