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Soft package battery side voltage detection device and side voltage detection method

A soft-pack battery and detection device technology, which is applied in the direction of measuring devices, measuring electricity, and measuring electrical variables, can solve the problems of inability to judge the insulation performance and inaccurate test results, and achieve accurate test values, uniform force, and The effect of large contact area

Pending Publication Date: 2020-12-29
ZHEJIANG HANGKE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the utility model patent (patent number: CN207248935U), it relates to a side voltage test device for a soft-packed lithium battery, which is mainly used to test the side voltage of the soft-packed battery with tabs on the same side. The test probe and the soft-packed lithium battery pass through The conductive cotton realizes the electrical connection, and then realizes the detection of the side voltage. In this scheme, there is a secondary electrical connection between the test probe and the soft-packed lithium battery, which will lead to inaccurate test results. In addition, in this test, no The pouch battery is under pressure, so it is impossible to judge whether its insulation performance is good or bad

Method used

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  • Soft package battery side voltage detection device and side voltage detection method
  • Soft package battery side voltage detection device and side voltage detection method
  • Soft package battery side voltage detection device and side voltage detection method

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Experimental program
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Effect test

Embodiment 1

[0043] Embodiment 1 A side voltage detection device of a pouch battery according to the present invention, comprising:

[0044] The support unit 1 is provided with a mounting platform on the top, and the mounting platform is provided with a first hollow mounting hole and a second hollow mounting hole for installing the battery pressing unit and the tab pressing unit;

[0045] The battery pressing unit includes a pressing assembly 2 and an upper pressing assembly 4, the pressing assembly includes a pressing driving mechanism and an upper pressing plate 24, and the driving mechanism is slidably embedded in the first hollow mounting hole of the supporting unit , and keep the force-applying end of the pressing-down driving mechanism protruding from the hollow mounting hole and falling below the mounting table for applying pressure to the pouch battery; the upper pressing plate 24 is installed on the force-applying end of the pressing-down driving mechanism for contacting the pouch ...

Embodiment 2

[0060]Embodiment 2 A side voltage detection device for a pouch battery according to the present invention includes a bracket assembly 1, a battery compression unit, a side voltage detection unit and a control unit, wherein the bracket assembly 1 is used to support the battery compression unit; The battery pressing unit includes a lower pressing assembly 2 and an upper pressing assembly 4. The side voltage detection unit includes a tab pressing conduction mechanism and a tab protection compatible moving mechanism. The tab pressing conducting mechanism includes a pole tab pressing conduction mechanism. The ear pressing assembly 3 and the tab conduction mechanism; the lower pressing assembly 2 is connected to the bracket assembly 1, and is opposite to the upper pressing assembly 4, which is used to press down and stabilize the pouch battery body; the tab pressing assembly 3 is connected to the On the bracket component 1, and adjacent to the pressing component 2, it is used to pres...

Embodiment 3

[0072] Embodiment 3 The method for detecting the side voltage of a pouch battery by using the device for detecting side voltage of a pouch battery described in Embodiment 2 includes the following steps:

[0073] 1) The side voltage detection device of the pouch battery is fixed on the production line through the support base 41 of the bracket assembly 1 and the upper pressure assembly 4;

[0074] 2) After different types of pouch batteries are supplied, the compatible conduction mechanism 46 of the pouch battery side voltage detection device and the tab protection compatible moving mechanism 5 are adjusted according to the size of the incoming pouch battery to meet the actual pouch battery model Size requirements;

[0075] 3) After the photoelectric sensor detects that the pouch battery is loaded in place, the cylinder part 21 of the lower pressing assembly 2 starts to descend. Under the guidance of the first sliding part 22, the upper pressing plate 24 slowly descends, and th...

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Abstract

The invention provides a soft package battery side voltage detection device and a side voltage detection method. The detection device comprises a supporting unit, a battery pressing unit, a side voltage detection unit and a control unit, wherein the battery pressing unit comprises a lower pressing assembly and an upper pressing assembly, the lower pressing assembly comprises a lower pressing driving mechanism and an upper pressing plate, and the upper pressing assembly comprises a supporting base, a pressing driving mechanism and a lower pressing plate; the side voltage detection unit comprises a tab pressing conduction mechanism and a tab protection compatible moving mechanism, the tab pressing conduction mechanism comprises a tab pressing assembly and a tab conduction mechanism, and thetab protection compatible moving mechanism is arranged between the supporting base and the lower pressing plate; and the control unit comprises a controller and a plurality of pressure sensors. The side voltage detection method comprises the steps of adjusting the position according to the size of incoming materials; and clamping a soft package battery by the battery pressing unit after the soft package battery is fed in place, and measuring the soft package battery. The beneficial effects are that the soft package battery side voltage detection device can measure batteries of the same type and different sizes, and is wide in application range; and the whole process is detected automatically, and the work efficiency is high.

Description

technical field [0001] The invention relates to a side voltage detection device and a side voltage detection method of a soft pack battery, belonging to the technical field of side voltage detection of a soft pack lithium battery. Background technique [0002] At present, the application of lithium batteries has become more and more extensive. Compared with traditional batteries, it has the advantages of large capacity, high working voltage, fast charging speed, wide working temperature range, long cycle life, small size and light weight. Because soft-pack batteries have greater capacity advantages compared with cylindrical and square batteries, more and more soft-pack lithium batteries are used as energy storage devices and power devices. Since the middle aluminum layer of the aluminum-plastic film of the pouch battery is easily short-circuited with the negative tab when the battery is packaged, the middle aluminum layer of the aluminum-plastic film will be corroded. There...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/385
CPCG01R31/385
Inventor 曹骥曹政安佰江方建忠
Owner ZHEJIANG HANGKE TECH
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