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Safety evaluation test apparatus

A safety evaluation and test device technology, which is applied in the field of safety evaluation test devices, can solve problems such as high temperature, insufficient pressure resistance, and bad effects

Active Publication Date: 2014-09-10
KOBELCO RES INST
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, when the above-mentioned test was performed on the above-mentioned power storage device group, a large amount of gas containing explosive component gases (for example, hydrogen, ethylene, methane) was generated in a short period of time, and the gas containing explosive components When the gas is ignited, a high temperature is generated and a large pressure is generated instantaneously. Therefore, in the airtight pressure-resistant container disclosed in the above-mentioned Patent Document 1, there is a problem of insufficient pressure resistance.
[0008] 2) Furthermore, after the above-mentioned test, flammable and corrosive flying matter scattered from the power storage device group adhered to the inner wall surface of the airtight pressure-resistant container, and there was a possibility that it would adversely affect the next test. question

Method used

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Embodiment Construction

[0041] Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[0042] figure 1 It is an explanatory drawing schematically explaining the outline structure of the safety evaluation test apparatus which concerns on the 1st Embodiment of this invention, (a) is a schematic top view explanatory drawing, (b) is the safety evaluation test apparatus shown in (a) A schematic cross-sectional illustration of the AA, figure 2 so figure 1 The BB plane shown in (b) cuts the flow direction of the air supplied from the gas supply mechanism and the assist gas supply mechanism into the chamber respectively, and is a schematic explanatory diagram viewed from above the chamber. FIG. 7 is a view from the chamber positively observed figure 2 A schematic explanatory diagram of the direction of the combined flow after the combined flow of the respective air is shown.

[0043] exist figure 1 Among them, 1 is a chamber with a height of 5m, 1a is the fo...

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Abstract

The invention provides a safety evaluation test device. The safety evaluation test device of the present invention is constituted such that gas containing explosive components, etc. generated when the safety evaluation test is performed on the Li-ion battery module (2) is connected with the gas supply mechanism (10), etc., and the auxiliary gas supply mechanism (30). ), etc. are discharged through the pipe (40) together, so the generated gas containing explosive components will not have a bad influence on the next test.

Description

technical field [0001] The present invention relates to a safety evaluation testing device for performing a predetermined safety evaluation test on modules or modules of an electrical storage device (hereinafter referred to as "electrical storage device group"). Here, a module refers to a member that combines a plurality of power storage devices of unit cells to form an integral body. In addition, a module refers to a component formed by combining a plurality of modules. Background technique [0002] For example, a lithium (Li) ion battery as an electrical storage device has a higher energy density than other secondary batteries and can obtain a high output, so it has been widely developed. [0003] However, the current status quo is that when an internal short circuit occurs in a Li-ion battery, due to rapid heat generation, the internal electrolyte (especially the solvent and electrolyte) decomposes and evaporates, producing harmful gases, or causing an explosion or eject...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M10/42
CPCY02E60/122Y02E60/10Y02P70/50H01G11/06H01M10/0525H01M10/4285H01M50/20Y02E60/13
Inventor 高桥知二今北毅寺泽优一
Owner KOBELCO RES INST
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