Nested easily adjusted cylindrical lithium battery thermal runaway experimental platform

Abstract

The invention discloses a nested easily adjusted cylindrical lithium battery thermal runaway experimental platform. An upper iron pipe and a lower iron pipe are nested and are fixed on an iron stand after being clamped by a clamp; a thermocouple storage slideway is arranged on the inner wall of the lower iron pipe; a thermocouple is stored in the thermocouple storage slideway; one side of the thermocouple is provided with a cylindrical lithium ion battery and a heating stick which are closely fitted; a heating stick hole and a size-adjustable thermocouple hole are formed in the bottom of the lower iron pipe; the thermocouple hole is drivingly connected with a knob; the thermocouple is connected with an NI upper data acquirer; the upper iron pipe is connected with a flue gas analyzer; and aviewing window is further formed in the upper iron pipe. The nested easily adjusted cylindrical lithium battery thermal runaway experimental platform decreases the number of operating steps and improves the experimental efficiency; meanwhile, the problems of a flue gas collection error and the like caused by a conventional flue gas hood are solved; and gas is directly collected in a test cabin, so that an experimental result is more accurate.

Description

technical field [0001] The invention relates to a thermal runaway experiment platform, in particular to a nested and easily adjustable cylindrical lithium battery thermal runaway experiment platform. Background technique [0002] The current open experiment of a single lithium battery is partly carried out by clamping the lithium battery and the heating rod directly by the fixture, and the collection of the flue gas requires an additional design of a fume hood for gas sampling analysis. This design has the following disadvantages. First, the fume hood At a certain height from the lithium-ion battery, the outward diffusion of smoke cannot be avoided. There is a gap between the measured components and the actual situation, and the diffusion of harmful smoke and the splash of residue during the thermal runaway of the battery will cause harm to the field experimenters. , Secondly, the process operation is complicated, and it will take too much preparation time before the experim...

AI Technical Summary

Problems solved by technology

[0004] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a nested and easily adjustable cylindrical lithium battery thermal runaway experiment platform, which eliminates the need to fix the lithium battery and heating rod before conducting the lithium ion battery thermal runaway experiment. The steps are reduced, the operation steps are reduced, and the experimental efficiency is improved. At the same time, it solves the problems of flue gas collection errors caused by traditional fume hoods. The gas is collected directly in the test chamber, and the experimental results are more accurate.

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