Equipment and method of detecting sealability of lithium ion battery

A sealing detection, lithium-ion battery technology, applied in the use of liquid/vacuum for liquid tightness measurement, by measuring the fluid's acceleration and deceleration rate, etc., can solve the problem of poor detection accuracy and stability, affecting battery performance and production. Cumbersome process and other problems, to achieve the effect of low cost, perfect control system and simple production process

Active Publication Date: 2012-10-17
奇瑞新能源汽车股份有限公司
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] The present invention designs a lithium-ion battery airtightness detection device and its detection method, which solves the problems of affecting the performance of the battery and causing the shell to bulge ...

Method used

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  • Equipment and method of detecting sealability of lithium ion battery
  • Equipment and method of detecting sealability of lithium ion battery
  • Equipment and method of detecting sealability of lithium ion battery

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Embodiment Construction

[0045] Attached below figure 1 to attach Figure 4 , the present invention is further described:

[0046] figure 1 It shows a schematic structural diagram of a lithium-ion battery leak detection device, including a control system, a fixed sealing device for the battery under test, a detection device 2, a vacuum device 3, an air supply device, a battery under test 5, and a four-way pipe joint 6 And several connecting pipelines, the battery under test 5 is fixed on the fixed sealing device of the battery under test, the liquid injection port 51 of the battery under test 5 is sealed and communicated with the connector 13 through the sealing gasket 14, the fixed sealing device of the battery under test, the detection device 2 , the vacuum device 3 and the gas supply device are respectively communicated with the four ports of the connecting pipeline and the four-way pipe joint 6, and the control system is respectively connected with each device in a wired or wireless manner to co...

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Abstract

The invention relates to equipment and a method for detecting the sealability of a lithium ion battery. The equipment and the method are characterized in that a tested battery fixing and sealing device, a detection device (2), a vacuum extractor device (3) and an air supply device are respectively connected with four ports of a four-way pipe joint (6) through connecting pipelines; a liquid injection port (51) of a tested battery (5) which is fixed on the tested battery fixing and sealing device (1) is communicated with a digital display vacuum pressure gauge (21) of the detection device (2) through a connector (13) on the tested battery fixing and sealing device (1), a first connecting pipeline (7), the four-way pipe joint (6) and a second connecting pipeline (8) to form an airtight detection passage; during detection, the vacuum extractor device (3) vacuumizes the detection passage, and after detection, the air supply device (4) supplies air to the detection passage to facilitate the separation of the tested battery (5) and the connector (13); and a control system controls all the devices to work cooperatively.

Description

technical field [0001] The invention relates to large-capacity power lithium-ion battery sealing performance testing equipment, in particular to a lithium-ion battery sealing performance testing equipment and a testing method thereof. Background technique [0002] Lithium-ion batteries are widely used in products such as notebooks, video cameras, digital cameras, mobile phones, and power tools. Especially in today's rapidly developing society, traditional energy sources such as oil, coal, and natural gas are decreasing as people increasingly exploit them. Today's new generation of lithium-ion batteries, fuel cells, and other clean, environmentally friendly, and efficient energy conversion and energy storage systems have become solutions to modern civilization. Effective methods facing environmental and energy problems are much favored by people. [0003] However, because lithium-ion batteries are usually used in harsh environments with low temperature and thin air pressure,...

Claims

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Application Information

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IPC IPC(8): G01M3/26
Inventor 吴建华高锋柱
Owner 奇瑞新能源汽车股份有限公司
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