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
CN102735407AActive Publication Date: 2012-10-17奇瑞新能源汽车股份有限公司
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
奇瑞新能源汽车股份有限公司
Publication Date
2012-10-17

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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.
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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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