Brief description of the Body Test for Battery Packages

Battery package body testing is generally performed in the DV/PV(design validation/production validation) phase to verify that the design / production of the battery package meets design requirements. These include temperature testing, mechanical testing, external environment simulation testing, low-voltage electrical testing, electromagnetic compatibility testing, electrical safety testing, battery performance testing, abuse test testing, and so on. Because everyone is more concerned about battery safety, we mainly introduce the test method of battery packet abuse test:

1) Acupuncture test

Simulation of the scene when the battery is punctured by a sharp object, because the penetration of foreign matter may lead to an internal short circuit, the test requires that no fire will not explode

2) Saltwater immersion

5 % brine prolonged immersion test, battery functional

At present, the new energy car battery pack waterproof dust level is recommended IP67(that is, 1 meter deep water immersion for half an hour without damage, SAIC, Wei Lai battery pack is IP67). The environment in which cars are used is so bad that it is not too much to do with water and dust protection(a year of heavy rain in Shanghai caused water in the garage, traditional cars were flooded, and electric cars were intact).

3) External fire:

The 590 degrees Celsius fire lasted 130 seconds. The battery did not explode, catch fire, burn, and there was no fire residue.

4) Drop:

1M High free fall battery shell function is normal on steel plate

The high frequency vibration simulation test requires the battery pack to function normally. As colleagues in the battery pack should know, it's hard to pass.

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