Battery thermal runaway experiment clamp

Abstract

The invention, which relates to the technical field of the lithium battery, discloses a battery thermal runaway experiment clamp comprising clamping plates, a needle hole, collection platforms, a cover plate and second temperature sensors. The inner sides of the two clamping plates are opposite; a needle hole is formed in one clamping plate and penetrates between the outer side surface and the inner side surface of the clamping plate; the top of each clamping plate is fixedly connected with a collection platform, and the two collection platforms extend towards the outer sides of the two clamping plates correspondingly. The material and the thickness of the cover plate simulate a box cover of the battery pack, the cover plate is located above the collection platforms, and a gap is reserved between the cover plate and the collection platforms; the multiple second temperature sensors are installed on the top faces of the two collection platforms and the eruption object area of the bottom face of the cover plate correspondingly. The clamp has the advantages that the eruption and the temperature of the eruption after thermal runaway of the battery cell can be collected, so that simulation model verification is carried out.

Description

technical field [0001] The invention relates to the technical field of lithium batteries, in particular to a jig for a battery thermal runaway experiment. Background technique [0002] At present, the development of new energy power batteries is the general trend. Lithium batteries are moving towards higher energy density. With the increasing safety risks, there is an urgent need to establish research to improve their safety. The key issue is the research on thermal runaway of power batteries. In order to study the internal mechanism and external performance of the thermal runaway of the power battery, an experimental fixture that can fix, heat, and acupuncture the battery cell and collect the eruption and the temperature of the eruption after the thermal runaway of the battery cell is needed. [0003] Patent CN212337945U discloses a battery thermal runaway testing device, which includes a container, a tooling, an acupuncture base and a power mechanism. The tooling is instal...

AI Technical Summary

Problems solved by technology

The disadvantages of the existing battery thermal runaway test device include: the eruption and the temperature of the eruption after the thermal runaway of the battery cell cannot be collected for simulation model verification; the thermal runaway of the battery cell or module under various working conditions cannot be realized. Out of control experiment; cannot adapt to different cell or module sizes

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