Battery module sample testing device

Abstract

The present invention discloses a battery module sample testing device, which comprises a concave die, a terrace die, U-shaped adjusting tabs, a T-shaped briquetting. The vertical planes of the concave die and the terrace die face each other; a boss on the upper part of the vertical surface of the terrace die cooperates with the vertical groove on the upper part of the concave die, so that an extrusion channel is formed between the two; by changing the number of U-shaped adjusting tabs, the width of the extrusion channel can be adjusted; a battery module sample is located in the extrusion channel; the T-shaped briquetting accepts loads and moves down to compressed and deform the battery module sample; the reaction force from the battery module sample and the amount of compressive deformation can be read from cylinder equipment; through a viewing port of horizontal groove located on the side of the concave die, the sample deformation process parameters are collected by a high-speed camera. The present invention optimizes the original test battery module into the battery module sample test; and the device facilitates handling, is simple doe test, has strong adaptability, and can the test battery module samples with different thicknesses.

Description

technical field [0001] The invention relates to a testing technology of an automobile battery, in particular to an extrusion deformation testing device of a battery module. Background technique [0002] The advantages of lithium-ion batteries in light weight and high energy density make them more and more the first choice for electric vehicle power batteries. In order to promote the popularization of electric vehicles, the national and local governments have issued a series of support policies, but electric vehicles are still far from the popularity of fuel vehicles among consumers. The reason why electric vehicles cannot be widely accepted by consumers is that apart from high prices and short cruising range, another key issue is their crash safety performance. [0003] A typical working condition of a battery module in an electric vehicle collision accident is in-plane compression deformation. Understanding the in-plane compressive mechanical properties of a battery module...

AI Technical Summary

Problems solved by technology

In order to promote the popularization of electric vehicles, the national and local governments have issued a series of support policies, but electric vehicles are still far from the popularity of fuel vehicles among consumers

The reason why electric vehicles cannot be widely accepted by consumers is that apart from high prices and short cruising range, another key issue is their crash safety performance

[0003] A typical working condition of a battery module in an electric vehicle collision accident is in-plane compression deformation. Understanding the in-plane compressive mechanical properties of a battery module is very important for guiding the design of electric vehicle collision safety protection devices. However, a battery module generally consists of Composed of 10 groups or more of single cells, the energy contained in them is large, and it is difficult to realize the compression deformation test of the battery module

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