Lithium battery performance test methods and lithium battery test equipment

Lithium battery performance test methods and lithium battery test equipment Lithium battery function test methods and lithium battery test equipment. Since the advent of lithium batteries, it has become a leader in the battery field with its excellent performance and sensitive performance. In today's lithium battery processing temporarily, in order to ensure the quality of the final lithium battery processing, various professional measuring instruments are usually used to measure the size standard of the lithium battery, and then to ensure the final lithium battery standard and standard, this time we will use the lithium battery test equipment . Lithium battery function test method Lithium battery is a high-quality and high-safety product. When customers are usually not aware of the function of using the battery, the working power of the battery often cannot meet the ambitious goal when using it, and sometimes the battery is used blindly from the explosion. In the event of an incident, life safety will also be damaged, so it is very important to know the function of the battery. Lithium battery function tests include voltage, internal resistance, capacity, internal pressure, self-discharge rate, cycle life, sealing function, safety function, storage function, appearance, etc., as well as other overcharge, overdischarge, solderability, and corrosion resistance Wait. Lithium battery testing. Jpg method 1. Self-discharge test Lithium battery self-discharge test is: generally choose 24-hour self-discharge to test that it can be quickly charged to 0.2~3.0V, C discharge battery is charged to 1C constant current and constant voltage to 4.2V, cut-off current : 10 horses, after 15 minutes, 1C discharged to 3.0V to test its discharge capacity C1, then the battery is charged with 1C constant current and constant voltage to 4.2V, cut-off current 100 mA, and the test capacity after 24 hours is 1CC2, C2/C1x100% Should be greater than 99%. Method two, internal resistance measurement. The internal resistance of a lithium battery refers to the resistance encountered by a lithium battery when current flows through the battery during operation. It is generally divided into communication internal resistance and DC internal resistance. Since the internal resistance of the rechargeable battery is very small, and since the electrode is easily polarized, the polarized internal resistance appears when measuring the DC internal resistance, so the true value cannot be measured. Measuring communication resistance can eliminate the influence of polarization resistance and get the true value. The communication internal resistance test method is as follows: The lithium battery is equivalent to an active resistor, and the battery is supplied with a constant current of 1000HZ, 50mA, sampling, rectifying, and filtering voltage, and accurately measuring the resistance value. Method 3, drop test When the lithium battery pack is fully charged, it will fall on the hard rubber plate in three different directions from a height of 1 meter. Do it twice in each direction. Method 4. Impact test When the lithium battery is fully charged, a hard rod with a diameter of 15.8 mm is placed on the battery, and a weight of 20 pounds is lowered from a height of 610 mm. The battery should not catch fire or leak. Method 5. Puncture test When the lithium battery is fully charged, pass a nail with a diameter of 2.0-25mm through the center of the battery, leaving the nail inside the battery. The battery should not catch fire suddenly. What is lithium testing equipment? Power lithium-ion battery testing equipment, as an important branch of the new energy automobile industry chain, is in an explosive rise period. If you want to process lithium batteries and lithium batteries with high consistency, good stability, and excellent performance, testing equipment will play a vital role. The lithium battery test system industry has the characteristics of complex downstream technology, multiple processing links, and long processes. The advanced lithium battery processing links are low in automation and smart. The processing process data collection, analysis and guessing, control, feedback, and tracking of each node of the lithium battery test system of the system processing company are established, human-computer intelligent interaction, highly integrated, and intelligent Process more actual emergency needs, such as intelligence. Laser thickness gauge: The coating laser thickness gauge can be placed behind the coating head and in front of the oven to measure the wet film thickness of the coating; it can also be placed in the oven to measure the thickness of the dry plate before winding; the roller type The laser thickness gauge is placed behind and in front of the limiting roller to measure the thickness of the pole plate behind the limiting roller. Disclaimer: Some pictures and content of the articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous post: Performance comparison between lithium iron phosphate battery and ternary lithium battery