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DC Hipot Tester for Battery Safety Tests

HIOKI ST568006 February 2023 - HIOKI launched the DC Hipot tester ST5680 for the safety inspection process of battery modules . The DC Hipot test is one of the electrical safety tests in the module production of LIBs (lithium-ion batteries). The required test conditions depend on the standards required for each battery. The DC Hipot tester ST5680 has the specifications to comply with a wide range of international standards. It has the performance to comply with a wide range of DC Hipot tests and insulation resistance tests, as well as a wide variety of features to prove battery quality.

The exterior parts of the battery module are designed to not allow electricity to flow (insulated). However, scratches or the introduction of foreign contaminants that occur during the battery production process cause electricity to flow where it should not, leading to accidents. DC Hipot tests check for these defects by applying high voltages to the test object. These tests are required by a wide range of standards. In particular, they are almost always performed in safety inspections for electrical products. In conventional DC Hipot testing, momentary arcing caused by small scratches inside the battery or contamination in the insulation area could not be judged as a definite defect. However, such potential defects can degrade the battery in a shorter time than expected by design and can cause accidents such as electric shock and fire. The DC Hipot tester ST5680 supports DC Hipot testing of battery products with increasingly higher voltages. Test voltage monitoring enables detection of arcing and recording of waveforms. By recording not only the numerical test results but also the waveforms, production quality can be assured and the cause of problems can be traced. The production of safe and reliable batteries contributes to the popularization of electric vehicles.

www.hioki.com/



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