Device for testing combustion performance of power battery

Abstract

The invention relates to the technical field of battery experimental facilities, and in particular relates to a device for testing the combustion performance of a power battery. The device is characterized in that after a battery is fixed on a test platform, the combustion testing is carried out through a double-way combustion hole, the gas flow can be controlled through a gas valve, further, the flame intensity is controlled, and thus the comparison test requirement on different batteries is met. Meanwhile, explosion impact wave pressure sensors are arranged on two sides of the batteries and in the direction of an anti-explosion valve, so that the sizes of impact waves generated in different directions when the batteries explode are tested, and the combustion performances of the batteries are compared quantitatively. The device can be used for quantitatively comparing the combustion performances of the different batteries; meanwhile, double-way combustion can enhance the testing speed, and increase the efficiency. During the testing process, the batteries can be charged and discharged, and the process that during use of the batteries on a vehicle, some batteries are on fire so as to cause influences on the safety performances of the other batteries under charge and discharge is simulated.

Description

technical field [0001] The patent of the present invention relates to the technical field of battery experiment equipment, in particular to a power battery combustion performance testing device. Background technique [0002] With the continuous tilt of the country's policy on new energy vehicles, new energy vehicles have entered a period of rapid development in recent years. However, the power battery is a very important aspect restricting the development of new energy vehicles, especially its safety performance, which is a very important key factor affecting the development of the new energy industry. Recently, the GB / T31485-2015 test standard has been promulgated, which indicates that the country's performance requirements for power batteries are becoming more and more standardized. [0003] At present, the safety test of domestic power batteries includes many aspects, but there is no mandatory requirement for the test of combustion performance. However, as the requireme...

AI Technical Summary

Problems solved by technology

At present, there is no quantitative comparison method for testing the combustion performance of batteries in foreign countries, and the combustion test is only carried out from one direction. There is a lack of a standard test device to quantitatively compare the combustion performance of different batteries.

At the same time, if the battery partially catches fire during use, the impact on the performance of other batteries cannot be simulated

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