the skills and methods of UL9540A testing mainly include the following aspects:
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fully understand the test standards: be familiar with the standard requirements and test methods of UL9540A testing, understand the purpose and process of testing, and master the key control points of testing.
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prepare the sample: charge and discharge the battery cell according to the standard requirements, and keep the battery cell charged to a state of 100 SOC. At the same time, to prevent excessive expansion during testing, the cell should simulate the binding conditions in the BESS module.
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reasonable selection of test equipment: use test equipment and methods that meet the requirements for testing, such as filling nitrogen into the explosion-proof tank, and using a flexible film heater to induce thermal runaway of the battery core.
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precise control of test conditions: during the thermal runaway test, the temperature during the whole process shall be measured and the exhaust temperature and the thermal runaway start temperature shall be recorded. At the same time, the cell exhaust gas is collected, and the gas composition is analyzed and measured.
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pay attention to the details during the test: Pay attention to the details during the test, such as the placement of the battery cell, the design of the exhaust port, etc., which will affect the test results.
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multiple tests for optimal results: In order to obtain more accurate results, ACST can perform multiple tests and compare and analyze the results to achieve optimal results.
Through UL9540A testing, it is necessary to fully understand the test standards, prepare samples, reasonably select test equipment, accurately control the test conditions, pay attention to the details of the test process, and obtain the optimal results from multiple tests. At the same time, in actual operation, we must strictly abide by relevant regulations and requirements to ensure the accuracy and safety of the test.
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