August 2023

This paper describes two key tests in power battery safety testing: the breath cycle test and the burst pressure test. Breathing cycle testing is used to evaluate the functionality and life of the battery, and rupture disc performance is tested by simulating cyclic changes in battery use. Burst pressure testing simulates the safety performance of a battery under extreme conditions, measuring rupture strength and burst pressure. Both tests help to comprehensively assess battery safety and ensure the safe operation of new energy vehicles.