An article to understand: the difference between power battery breathing cycle test and burst pressure test

With the rapid development of new energy vehicles, the safety of power batteries is getting more and more attention. As we all know, power battery is like the "heart" of new energy vehicles, which is not only critical but also needs to be protected.The power battery pack of a new energy vehicle consists of several modules, like the battery top cover, aluminum casing, electric cells, explosion-proof valves, rupture discs and so on.

Therefore their security testing is quite important, and one of theBreath Cycle Test and Burst Pressure Test are two tests that are essential in safety testing., so what is the difference between these two tests?

Ⅰ.Different test purposes

Respiratory Cycle Tester是一种用于检测新能源动力电池的功能性和寿命的设备，主要是对电池进行耐疲劳测试，也叫循环寿命测试。Respiratory Cycle Tester通过控制双向气压来模拟动力电池在使用中的实际情况，从而精确的反映爆破片真实的性能特性，检测爆破片在一定压力下能否承受多次循环变化，以评估电池的性能和稳定性。

(indicates contrast)Burst Tester是对电池进行高压破坏，模拟电池在极端工作条件下的安全表现，属于安全破坏测试。Burst Pressure Tester通过施加爆炸荷载来模拟爆炸对电池的影响，并测量电池的破裂强度、爆破压力数值和其他性能参数。

Ⅱ.Different test principles

Respiratory cycle testing usuallyIn the micro-pressure range of 0~800kPaGas loading and unloading was performed inside to simulate the long-term respiration effect of the cell.

Battery Cover Column Breathing Cycle Test

Burst pressure testing applies an extremely high pressure shock to the battery, quickly destroying it and observing the form of destruction.General pressure in 0~3.5MPaThe

Battery Cover Rupture Pressure Test for Rupture Discs

III.Different test methods

Respiratory cycle testing is required forDozens or even hundreds of loading and unloading cycles, observing the change in volume of the battery.Long test cyclesThe

Burst pressure testing is only required inHigh pressure can be applied in a few tens of seconds(math.) genusShort test cycle timeThe

IV. Summary

通过呼吸循环测试和爆破压力检测，可以全面评估电池的安全性，确保电动汽车的安全运营。这两种测试着眼点不同，JCGK 精诚工科以此为切入口，在常年从事Air tightness testing equipment及其核心控制和功能部件的研发的经验上，开始研发新能源市场呼吸循环测试和爆破压力检测等相关仪器设备，公司推出的Breath Burst Tester广泛应用于新能源汽车锂电池、动力电池、电芯、铝壳、电池盖板、防爆阀、电池包等不同形态的电池产品，在成功抢占到市场先机的情况下，深圳精诚工科迅速成长为该细分领域的领军企业。

In the future, JCGK will focus on production capacity expansion, technological innovation, and market development. JCGK plans to build on the success of the new energy automotive market and target the development of emerging markets such as energy storage, as well asWe participate in the international market competition and keep moving towards the globalization of the first-class enterprises to provide the best solutions for the quality and safety of our customers' products.