High-voltage-resistant battery powder test pool

Abstract

The invention relates to a high-voltage-resistant battery powder testing pool which is used for lithium ion battery powder thermal safety research. An existing battery powder testing pool is not resistant to high voltage, is very easy to damage in the operation process and is difficult to maintain. The device comprises a conduit, an upper end cover, a lower end cover, a rubber gasket, a test pool cylinder body, a thermocouple slot, a bolt, a nut and a gasket. The test cell can bear the pressure of more than 5 MPa, and can stably work at the ambient temperature of 700 DEG C or above, and the thermocouple slot is reasonable in position and not easy to break. The bidirectional connection of the bolt and the nut improves the sealing performance of the whole test pool. In the experiment process, the temperature of battery powder in the cylinder can be measured, and the temperature of the outer surface of the cylinder body can also be measured, so that the heating power of the whole cylinder body is controlled. And the pyrolysis process of the waste lithium ion battery powder can be analyzed under the condition of different equivalence ratios, and the device has the characteristics of simple structure, easiness in adjustment, safety, reliability, diversified experimental forms, complete data acquisition and the like.

Description

technical field [0001] The invention relates to a thermal safety research device for high-voltage lithium-ion battery powder, in particular to a high-voltage battery powder test pool. Background technique [0002] As a new type of energy storage battery, lithium-ion battery plays an important role in its development process due to its high energy density, low self-discharge, long storage life, and safe operation. However, the performance of the power battery decays with the increase of the number of uses. When the performance of the power battery drops to 80% of the original performance, a large number of power battery packs that cannot meet the standards for electric vehicles will emerge. How to deal with these batteries that have been eliminated from electric vehicles will gradually become a contradiction between the development of the new energy vehicle industry and the environment and resources. Whether power batteries can be effectively recycled will directly affect the...

AI Technical Summary

Problems solved by technology

[0004] In view of the above analysis, in view of the current situation of less research on the thermal characteristics and thermal safety of waste lithium-ion battery powder, an experimental device that can withstand high voltage, is not easy to damage, and is easy to maintain is designed.

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