How to test the working performance of capacitor aluminum foil?

Testing the working performance of capacitor aluminum foil usually involves the following aspects:

National standards and methods:

According to the "GB/T 3615-2016 Aluminum foil for electrolytic capacitors" standard, the detection of aluminum foil for electrolytic capacitors includes the testing of its chemical composition, physical properties, electrical properties and other aspects. The standard specifies the requirements of aluminum foil, test methods, inspection rules and marks, packaging, transportation, storage and quality certificates and orders.

Aluminum foil crystal structure detection:

By detecting the crystal structure of aluminum foil in aluminum electrolytic capacitor, the performance of aluminum foil can be judged. This method involves the analysis of the microstructure of the aluminum foil to ensure that it has good electrochemical properties and mechanical strength.

Unilateral specific volume test:

The single-side specific volume testing method of electrode foil for aluminum electrolytic capacitors is also a common testing method. By testing the single-sided specific volume of the electrode foil, its capacitance and performance can be evaluated to ensure that its application in capacitors meets the requirements.

Anode foil production test method:

In the production process, the anode foil for aluminum electrolytic capacitors needs to undergo a series of tests, including the thickness, surface quality, electrochemical performance and other indicators. These tests ensure efficient operation of the anode foil in the capacitor.

Performance analysis and comparison:

The performance of electronic aluminum foil for aluminum electrolytic capacitors was analyzed and compared, including the evaluation of trace element design, impurity control, cubic texture control, surface machining quality, oxide uniformity and trace element distribution control. These analyses help judge the overall performance and suitability of aluminum foil.

In summary, testing the working performance of capacitor aluminum foil involves many aspects of testing and analysis, including chemical composition, physical properties, electrical properties, crystal structure, single-side specific volume and so on. These testing methods and standards ensure the application performance and reliability of aluminum foil materials in capacitors.