What are the requirements for temperature test of lithium-ion battery of the new version?

The new version of the lithium-ion battery standard is "QB/T 2502-2020 General Specification for Lithium-ion Batteries". Below, the editor makes some simple explanations for some of the common test requirements for your reference.

1.Constant Damp Heat Test in temperature test of lithium-ion battery:

Test temperature: 40℃±2℃

Relative humidity: 90~95%

Inspection time: 48h

Recommended test equipment: battery constant temperature and humidity chamber

Equipment Model: Huanyi Instrument HYH Series

2. Temperature shock test in temperature test of lithium-ion battery:

Cycle times: 10 times

Cycle test: After 2 hours at -20°C, and then 2 hours at 50°C, the battery should not leak for 10 cycles. The conversion time between different temperatures should not exceed 5min.

Recommended test equipment: battery thermal shock cycle test chamber

Equipment model: HYQT series of huanyi instrument

3. High temperature shelving test in temperature test of lithium ion battery:

Test requirements: raise the temperature to 130°C at a heating rate of (5±1)°C/min, and place it in this environment for 1 hour, the battery should not explode or catch fire.

Recommended test equipment: battery thermal abuse test chamber

If you have any questions about the above temperature test of lithium-ion battery, or about the selection of the test chamber, you can visit the official website of "Huanyi Instrument" and consult relevant technical personnel.