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The bipolar plate contact resistance tester is mainly used for measuring the vertical resistivity and contact resistance of carbon paper, bipolar plates, all vanadium flow battery electrodes, iron chromium flow battery electrode materials or other materials used in membrane fuel cells. Porous carbon paper produced from carbon fibers, abbreviated as carbon paper, has breathability and conductivity. This machine is also called a carbon paper vertical resistivity tester or a bipolar plate contact resistance tester.
1、 The bipolar plate contact resistance tester is based on the following standards:
GB/T20042.7 Proton Exchange Membrane Fuel Cells Part 7: Test Methods for Charcoal Paper Characteristics
Proton exchange membrane fuel cells - Part 6: Test methods for bipolar plate characteristics
NB/T 42082-2016 Test Method for Electrodes of All Vanadium Flow Batteries
NB/T42007-2013 Test method for bipolar plates used in all vanadium flow batteries
T/CEEIA 577-2022 Technical requirements and testing methods for electrode materials used in iron chromium flow batteries
2、 Test principle of bipolar plate contact resistance tester:
The sample is placed between two electrodes, and a certain pressure is applied on both sides of the electrode. During the testing process, the instrument automatically records the resistance values at different pressures.
3、 Technical characteristics of bipolar plate contact resistance tester:
1. Touch screen display, real-time display of pressure, pressure, resistance, etc., fully automatic completion of testing.
2. Adopting digital speed control high-performance motor, driving precision screw pair, precise transmission, and smooth operation.
3. Using high-precision CHCONTACH sensors from the United States, the testing accuracy is high.
4. Standard micro printer, can print at any time, can statistically process multiple test results, maximum value, minimum value, average value.
5. The upper and lower pressure plates are made of high-quality copper plated with gold, which has good conductivity and small errors.
6. The large screen displays the corresponding resistance value for every increase of 0.01mpa during the test process, and saves it on the screen for clear display.
7. Experimental data can be saved and experimental results can be queried by batch number.
8. One machine dual-use, menu can select carbon paper vertical resistivity test or bipolar plate contact resistance test.
9. Professional measurement and control software, the local control software has a software copyright certificate issued by the National Copyright Administration.
4、 Technical parameters of bipolar plate contact resistance tester:
Measurement range: (10-10000) N (0.05-5.0 MPa); 1 μ Ω -20k Ω
Resolution: 0.1N
Accuracy: ± 0.5%
Pressure sensor: CHCONTACH, USA
Resistance resolution: 1 μ Ω, 0.001m Ω
Test speed: (1-300) mm/min
Sample area: 4cm ², 20x20mm
Parallelism of upper and lower pressure plates:<0.025mm
Upper and lower pressure plate diameter: 80 mm (customizable)
External dimensions: 360 x 320 x 580mm
Mass: 35kg
Power supply: 220V, 50Hz
5、 Basic configuration of bipolar plate contact resistance tester:
Host, gold-plated electrode, low resistance measuring instrument, certificate of conformity, instruction manual, warranty card, power cord.
6、 Touch screen control interface:
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