CN109813507B - Soft package battery leakage inspection method and mechanism - Google Patents
Soft package battery leakage inspection method and mechanism Download PDFInfo
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- CN109813507B CN109813507B CN201910094370.9A CN201910094370A CN109813507B CN 109813507 B CN109813507 B CN 109813507B CN 201910094370 A CN201910094370 A CN 201910094370A CN 109813507 B CN109813507 B CN 109813507B
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- 238000007689 inspection Methods 0.000 title claims abstract description 16
- 238000000034 method Methods 0.000 title claims abstract description 13
- 239000007788 liquid Substances 0.000 claims abstract description 18
- 238000001514 detection method Methods 0.000 claims abstract description 16
- 239000002184 metal Substances 0.000 claims abstract description 11
- 239000011810 insulating material Substances 0.000 claims abstract description 4
- 238000004519 manufacturing process Methods 0.000 claims abstract description 3
- 238000009413 insulation Methods 0.000 claims description 26
- 239000000523 sample Substances 0.000 claims description 18
- 238000005259 measurement Methods 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 5
- 239000004020 conductor Substances 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000012263 liquid product Substances 0.000 abstract description 2
- 238000004806 packaging method and process Methods 0.000 abstract description 2
- 238000009530 blood pressure measurement Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
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- Sealing Battery Cases Or Jackets (AREA)
- Secondary Cells (AREA)
Abstract
The invention belongs to the technical field of tightness inspection of flexible package liquid products, and particularly relates to a leakage inspection method and a leakage inspection mechanism of a flexible package battery. The leakage inspection method of the flexible package battery specifically comprises the following steps: 1) Manufacturing insulating materials into upper and lower detection cavities, and applying conductive sponge in the upper and lower cavities; 2) A metal conductive block is arranged in the upper insulating cavity or the lower insulating cavity corresponding to the battery electrode; 3) In the upper insulating cavity or the lower insulating cavity, a negative electrode of a test power supply is formed by connecting a metal conductive block with a conductive sponge; 4) The positive electrode of the test power supply and the negative electrode of the test power supply are respectively connected with a voltage measuring device through lead-out wires. The beneficial effects are as follows: 1) The detection efficiency is high: the leakage can be detected at the initial stage without waiting; 2) No pollution: the liquid leakage is detected and stopped at the initial stage, so that a large amount of battery liquid cannot leak out; 3) The problem that the current flexible package battery industry can not leak after packaging is solved.
Description
Technical Field
The invention belongs to the technical field of tightness inspection of flexible package liquid products, and particularly relates to a leakage inspection method and a leakage inspection mechanism of a flexible package battery.
Background
At present, the leakage inspection method of the flexible package battery products is temporarily and efficiently free from pollution and mature in the market, and the prior art means aims at the following defects and shortcomings of the sealing inspection of the flexible package battery:
1. Air leak detection method: various differential pressure comparison methods including internal pressure measurement, external pressure measurement, volume measurement, deformation measurement, and the like cannot eliminate the influence of air pressure on the shape of the flexible package and the change of volume. Such as: in the process of air inflation or air exhaust of the flexible package test, the volume of the flexible package can be changed due to the change of external pressure, and if the product leaks, the volume and the pressure in the package can be changed, so that the pressure detection and the volume detection are not used;
2. Halogen detection method, VOC detection: by analyzing specific molecules and elements of volatile gas and liquid, whether leakage occurs or not is judged, and the method can not detect carbon element molecules and molecules which are not easy to volatilize.
Disclosure of Invention
The invention provides a method and a mechanism for checking leakage of a flexible package battery in order to make up for the defects of the prior art.
The invention is realized by the following technical scheme:
The leakage inspection method for the flexible package battery specifically comprises the following steps:
1) Manufacturing insulating materials into upper and lower detection cavities, and applying conductive sponge in the upper and lower cavities;
2) A metal conductive block is arranged in the upper insulating cavity or the lower insulating cavity corresponding to the battery electrode, a spring probe is arranged on the corresponding insulating cavity corresponding to the battery electrode, and the battery electrode is pressed on the metal conductive block through the spring probe to form the positive electrode of the test power supply;
3) In the upper insulating cavity or the lower insulating cavity, a negative electrode of a test power supply is formed by connecting a metal conductive block with a conductive sponge;
4) Connecting the positive electrode of the test power supply and the negative electrode of the test power supply with a voltage measuring device through lead-out wires respectively;
5) And positive pressure or negative pressure is introduced into the upper and lower detection cavities through the pressure air inlets on the upper insulation cavity or the lower insulation cavity, and if the battery liquid leaks, the internal battery liquid and the conductive sponge form a conductor due to good fluidity and conductivity of the battery liquid, and whether the battery liquid leaks inside the battery is judged through the positive and negative voltage change of the voltage measuring device.
Further, the conductive sponge is made into a corresponding shape according to the style of the battery, and is not in contact with the battery electrode.
The utility model provides a flexible package battery leakage inspection mechanism, includes cavity, insulation cavity and voltage measurement device down on the insulation, be equipped with conductive sponge in cavity and the insulation cavity down respectively on the insulation, be equipped with conductive block and spring probe between cavity and the insulation cavity down on the insulation, voltage measurement device is connected with conductive block and the conductive sponge that corresponds respectively through the wire that draws forth.
Further, the spring probe is located on the upper insulating cavity, the end portion of the spring probe corresponds to the conductive block, and the spring probe presses the battery electrode on the conductive block.
Further, a pressure air inlet is formed in the insulation upper cavity.
Further, the conductive sponge on the insulation upper cavity is connected with the voltage measuring device through a first lead-out wire.
Further, the conductive block is located on the insulating lower cavity, the conductive sponge located in the insulating lower cavity is in contact with the conductive block, and the conductive block is connected with the voltage measuring device through the second lead-out wire.
Further, a sealing ring is arranged between the insulating upper cavity and the insulating lower cavity.
The beneficial effects of the invention are as follows: 1) The detection efficiency is high: the leakage can be detected at the initial stage without waiting;
2) No pollution: the liquid leakage is detected and stopped at the initial stage, so that a large amount of battery liquid cannot leak out;
3) The problem that the current flexible package battery industry can not leak after packaging is solved.
Drawings
The invention is further described below with reference to the accompanying drawings.
Fig. 1 is a schematic structural view of the present invention.
In the figure, the upper insulating cavity is 1, the lower insulating cavity is 2, the sealing ring is 3, the pressure air inlet is 4, the spring probe is 5, the first lead-out wire is 6, the second lead-out wire is 7, the conducting block is 8, the battery electrode is 9, the voltage measuring device is 10, the conductive sponge is 11, and the battery is 12.
Detailed Description
Fig. 1 is a schematic diagram of an embodiment of the present invention. The invention relates to a leakage inspection method for a flexible package battery 12, which specifically comprises the following steps:
1) The insulating material is manufactured into an upper detection cavity and a lower detection cavity, and conductive sponge 11 is adhered in the upper cavity and the lower cavity; because the conductive sponge 11 has the characteristics of good air permeability, electrical conductivity and softness and easy deformation, when the upper and lower detection cavities are attached, the conductive sponge 11 is extruded and filled in the gaps of the cavities, and because the conductive sponge 11 is soft and easy to deform, the battery 12 is not damaged or the marks are not generated;
2) A metal conductive block 8 is arranged in the upper insulating cavity or the lower insulating cavity corresponding to the battery electrode 9, a spring probe 5 is arranged on the corresponding insulating cavity corresponding to the battery electrode 9, and the battery electrode 9 is pressed on the metal conductive block 8 through the spring probe 5 to form the positive electrode of the test power supply;
3) In the upper insulating cavity or the lower insulating cavity, the metal conducting block 8 is connected with the conducting sponge 11 to form a negative electrode of a test power supply;
4) The positive electrode of the test power supply and the negative electrode of the test power supply are respectively connected with the voltage measuring device 10 through lead-out wires;
5) The positive pressure or the negative pressure is introduced into the upper and lower detection cavities through the pressure air inlet 4 on the upper insulation cavity or the lower insulation cavity, and if the battery liquid leaks, the internal battery liquid and the conductive sponge 11 form a conductor because the battery 12 is covered with the insulator, and under the condition that the battery liquid does not leak, the voltage between the positive electrode and the negative electrode of the battery 12 and the external insulator of the battery 12 is 0, and when leakage exists, the leaked battery liquid can form a voltage with the positive electrode and the negative electrode of the battery 12 through the leakage opening, so that whether the battery liquid leaks inside the battery 12 is judged through the voltage change of the positive electrode and the negative electrode of the voltage measuring device 10.
Further, the conductive sponge 11 is shaped in accordance with the pattern of the battery 12 and does not contact the battery electrode 9.
The utility model provides a flexible package battery 12 leakage inspection mechanism, includes cavity 1, insulation cavity 2 and voltage measuring device 10 down on the insulation, be equipped with electrically conductive sponge 11 respectively in cavity 1 and the insulation cavity 2 down on the insulation, be equipped with electrically conductive piece 8 and spring probe 5 down between cavity 1 and the insulation cavity 2 on the insulation, voltage measuring device 10 is connected with electrically conductive piece 8 and corresponding electrically conductive sponge 11 respectively through the lead-out wire.
Further, the spring probe 5 is located on the upper insulating cavity 1, the end of the spring probe 5 corresponds to the conductive block 8, and the spring probe 5 presses the battery electrode 9 on the conductive block 8.
Further, a pressure air inlet 4 is arranged on the insulation upper cavity 1.
Further, the conductive sponge 11 on the insulation upper cavity 1 is connected with the voltage measuring device 10 through the first lead-out wire 6.
Further, the conductive block 8 is located on the insulating lower cavity 2, the conductive sponge 11 located in the insulating lower cavity 2 is in contact with the conductive block 8, and the conductive block 8 is connected with the voltage measuring device 10 through the second lead-out wire 7.
Further, a sealing ring 3 is arranged between the insulating upper cavity 1 and the insulating lower cavity 2.
The present invention is not limited to the above embodiments, and any person who makes the technical solution with the same or similar to the present invention in the light of the present invention should be known to fall within the scope of the present invention.
The technology, shape, and construction parts of the present invention, which are not described in detail, are known in the art.
Claims (2)
1. The method for checking the leakage of the flexible package battery is characterized by comprising the following steps of:
1) Manufacturing insulating materials into upper and lower detection cavities, and applying conductive sponge in the upper and lower cavities; the conductive sponge is manufactured into a corresponding shape according to the style of the battery and is not contacted with the battery electrode;
2) A metal conductive block is arranged in the upper insulating cavity or the lower insulating cavity corresponding to the battery electrode, a spring probe is arranged on the corresponding insulating cavity corresponding to the battery electrode, and the battery electrode is pressed on the metal conductive block through the spring probe to form the positive electrode of the test power supply;
3) In the upper insulating cavity or the lower insulating cavity, a negative electrode of a test power supply is formed by connecting a metal conductive block with a conductive sponge;
4) Connecting the positive electrode of the test power supply and the negative electrode of the test power supply with a voltage measuring device through lead-out wires respectively;
5) And positive pressure or negative pressure is introduced into the upper and lower detection cavities through the pressure air inlets on the upper insulation cavity or the lower insulation cavity, and if the battery liquid leaks, the internal battery liquid and the conductive sponge form a conductor due to good fluidity and conductivity of the battery liquid, and whether the battery liquid leaks inside the battery is judged through the positive and negative voltage change of the voltage measuring device.
2. The utility model provides a flexible package battery leakage inspection mechanism, includes cavity, insulation cavity and voltage measurement device down on the insulation, characterized by: the voltage measuring device is connected with the conductive block and the corresponding conductive sponge through lead wires; the spring probe is positioned on the insulating upper cavity, the end part of the spring probe corresponds to the conductive block, and the spring probe presses the battery electrode on the conductive block; a pressure air inlet is arranged on the insulation upper cavity; the conductive sponge on the insulation upper cavity is connected with the voltage measuring device through a first lead-out wire; the conductive block is positioned on the insulating lower cavity, conductive sponge positioned in the insulating lower cavity is contacted with the conductive block, and the conductive block is connected with the voltage measuring device through a second lead-out wire; and a sealing ring is arranged between the insulating upper cavity and the insulating lower cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910094370.9A CN109813507B (en) | 2019-01-30 | 2019-01-30 | Soft package battery leakage inspection method and mechanism |
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| CN201910094370.9A CN109813507B (en) | 2019-01-30 | 2019-01-30 | Soft package battery leakage inspection method and mechanism |
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| CN109813507A CN109813507A (en) | 2019-05-28 |
| CN109813507B true CN109813507B (en) | 2024-06-11 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US11067473B2 (en) * | 2019-06-07 | 2021-07-20 | Packaging Technologies & Inspection, LLC | System and method for high voltage leak detection |
| CN110530578B (en) * | 2019-09-18 | 2021-06-11 | 重庆欧世德科技有限公司 | Electronic detector for sealing performance of oil pump fixing seat |
| CN111929543A (en) * | 2020-07-22 | 2020-11-13 | 苏州华智诚精工科技有限公司 | Battery insulating layer point discharge detection cavity structure |
| CN111982413A (en) * | 2020-07-29 | 2020-11-24 | 无锡格林司通自动化设备股份有限公司 | Soft package lithium battery leakage detection method |
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