Lithium battery aging cabinet tester: key equipment to ensure lithium battery performance

The lithium battery Aging Cabinet Tester performs aging tests on lithium batteries by simulating the charging and discharging process of lithium batteries in actual use. Its working principle is based on the charging and discharging characteristics of lithium batteries. It uses a high-precision power supply and control system to accurately control the charging and discharging current, voltage, time and other parameters to perform cyclic charging and discharging operations on lithium batteries. During the charging and discharging process, the tester monitors the various performance indicators of lithium batteries in real time, such as voltage, current, capacity, internal resistance, etc., and records and analyzes these data to evaluate the performance and life of lithium batteries.

1. High-precision parameter control

The lithium battery aging cabinet tester can accurately control the accuracy of charge and discharge current and voltage. Generally, the current accuracy can reach ±0.1% FS, and the voltage accuracy can reach ±0.05% FS, ensuring the accuracy and reliability of the test results. By setting different charge and discharge parameters, the working state of lithium batteries in different usage scenarios can be simulated, such as fast charging, slow charging, deep discharge, etc.

2. Multi-channel independent testing

In order to improve the test efficiency, most lithium battery aging cabinet testers have a multi-channel design, and each channel can be tested independently without interfering with each other. In this way, multiple lithium batteries can be aged at the same time, which greatly shortens the test cycle and improves production efficiency. The number of channels can range from a few channels to hundreds of channels according to different equipment models and requirements.

3. Real-time data monitoring and recording

During the test process, the tester can monitor the various parameters of the lithium battery in real time and display the data intuitively in the form of charts or reports. At the same time, these data will be automatically recorded to facilitate subsequent data analysis and processing. The data recording interval can be set as needed, generally up to the second level, to ensure that the subtle changes of lithium batteries during the charging and discharging process can be captured.

4. Safety protection function

Lithium batteries have certain safety risks during the charging and discharging process, such as overcharging, over-discharging, overheating, etc. In order to ensure the safety and reliability of the test process, the lithium battery aging cabinet tester is equipped with a complete safety protection function. For example, the overvoltage protection function can automatically cut off the charging circuit when the lithium battery charging voltage exceeds the set upper limit to prevent the battery from being overcharged and damaged; the overcurrent protection function can limit the current in time when the charging and discharging current is too large to avoid battery overheating and fire; the overheating protection function monitors the battery temperature in real time through the temperature sensor. When the temperature exceeds the safety threshold, the cooling fan is started or the test is stopped to protect the safety of the battery and the equipment.

5. Flexible test plan setting

Users can flexibly set various test plans according to different test requirements. The tester usually supports multiple charging and discharging modes, such as constant current charging, constant voltage charging, constant current discharge, constant power discharge, etc., and can also set parameters such as the number of cycles and shelf time to meet the aging test requirements of different types of lithium batteries. At the same time, some advanced testers also have the function of customizing the test process. Users can write specific test programs according to their own research or production needs to achieve more personalized testing.