CN114923931A - Detection device and method for detecting lithium precipitation condition of battery pole piece by using area-array camera - Google Patents
Detection device and method for detecting lithium precipitation condition of battery pole piece by using area-array camera Download PDFInfo
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- CN114923931A CN114923931A CN202210343848.9A CN202210343848A CN114923931A CN 114923931 A CN114923931 A CN 114923931A CN 202210343848 A CN202210343848 A CN 202210343848A CN 114923931 A CN114923931 A CN 114923931A
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- pole piece
- battery pole
- array camera
- detection device
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- 238000001514 detection method Methods 0.000 title claims abstract description 60
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 34
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 34
- 238000000034 method Methods 0.000 title abstract description 11
- 238000001556 precipitation Methods 0.000 title abstract description 9
- 239000000463 material Substances 0.000 claims description 27
- 230000007547 defect Effects 0.000 claims description 9
- 230000008021 deposition Effects 0.000 claims description 8
- 230000000007 visual effect Effects 0.000 abstract description 5
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 5
- 229910001416 lithium ion Inorganic materials 0.000 description 5
- 230000001681 protective effect Effects 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000012938 design process Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000003446 memory effect Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000011179 visual inspection Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/95—Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
- G01N21/956—Inspecting patterns on the surface of objects
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/8806—Specially adapted optical and illumination features
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
Abstract
The invention discloses a device and a method for detecting the lithium precipitation condition of a battery pole piece by using an area array camera. According to the invention, the area-array camera is adopted to acquire the image of the battery pole piece, so that the lithium analysis condition of the battery pole piece is detected in a visual detection mode, compared with the existing manual naked eye judgment mode, a large amount of energy and time are not required to be consumed, and the accuracy of the lithium analysis condition detection is improved.
Description
Technical Field
The invention relates to the technical field of lithium battery detection, in particular to a detection device and a detection method for detecting lithium deposition condition of a battery pole piece by using an area-array camera.
Background
A lithium ion battery is a secondary battery that operates by lithium ions moving back and forth between a positive plate and a negative plate. Lithium ion batteries are widely used because of their advantages of environmental friendliness, long service life, no memory effect, high specific energy, high specific power, etc. However, in the lithium ion battery, metal lithium may be precipitated on the surface of the negative electrode plate during the design and manufacturing process or the unreasonable charging and discharging process, and this phenomenon is called lithium precipitation. The lithium analysis has a great influence on the service life and safety of the lithium ion battery, so the lithium analysis condition of the pole piece needs to be detected.
At present, the most common method for detecting the lithium analysis condition of the pole piece is judgment by artificial naked eyes, and the judgment mode by the artificial naked eyes has the following defects: a great deal of energy and time are consumed, and in addition, after the eyes are exhausted manually, the condition of false detection and missed detection is easy to occur, so that the detection accuracy is influenced.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a detection device and a detection method for detecting the lithium precipitation condition of a battery pole piece by using an area-array camera, which can solve the technical problems.
(II) technical scheme
In order to solve the above technical problems, the present invention provides the following technical solutions: a detection device for detecting the lithium precipitation condition of a battery pole piece by using an area-array camera comprises: the battery pole piece detection device comprises an area array camera, a backlight source and an upper material plate, wherein the area array camera is arranged above the upper material plate, the shooting direction of the area array camera is towards the upper material plate, the backlight source is arranged below the upper material plate, the upper material plate is used for placing a battery pole piece to be detected, and the upper material plate is made of a light-transmitting material.
Preferably, the detection device further comprises: the feeding device comprises a feeding platform and a Y-axis moving device, wherein the Y-axis moving device is arranged on the top surface of the feeding platform, and a feeding plate is arranged on the Y-axis moving device.
Preferably, the area-array camera is arranged above the top surface of the feeding platform.
Preferably, the top surface of material loading platform is equipped with the backup pad, is equipped with the fixed plate in the backup pad, and the area-array camera sets up on the fixed plate.
Preferably, the bottom of the area-array camera is provided with a lens, and the lens penetrates through the fixing plate.
Preferably, the backlight source is arranged inside the feeding platform, and the top surface of the feeding platform is provided with a light hole corresponding to the backlight source.
Preferably, the Y-axis moving device comprises a sliding rail, a sliding block and an air cylinder, the sliding rail and the air cylinder are arranged on the top surface of the feeding platform at intervals, the sliding block is arranged on the sliding rail, the feeding plate is arranged on the sliding block, and the air cylinder is connected with the feeding plate.
Preferably, the material feeding plate is provided with a stop block.
Preferably, the detection device further comprises: the protective cover is arranged on the feeding platform and is provided with a display.
In order to solve the above technical problem, the present invention provides another technical solution as follows: a detection method for detecting the lithium separation condition of a battery pole piece by using an area-array camera adopts the detection device of any one technical scheme for detection, and comprises the following steps: placing a battery pole piece to be detected on a feeding plate; starting an area array camera to shoot the surface of the battery pole piece so as to acquire an image of the battery pole piece; and carrying out visual inspection on the image of the battery pole piece to analyze whether the battery pole piece has a lithium analysis defect.
(III) advantageous effects
Compared with the prior art, the invention provides a detection device and a detection method for detecting the lithium precipitation condition of a battery pole piece by using an area-array camera, and the detection device and the detection method have the following beneficial effects: the battery pole piece to be detected is placed through the feeding plate, the surface of the battery pole piece is shot through the area array camera, images of the battery pole piece are collected, visual detection is carried out on the images of the battery pole piece to analyze whether the lithium analysis defect exists, the lithium analysis condition of the battery pole piece is detected through the visual detection mode, the battery pole piece detection mode is compared with the existing manual naked eye judgment mode, a large amount of energy and time are not required to be consumed, and the detection accuracy is improved.
Drawings
FIG. 1 is a first perspective view of a device for detecting a lithium deposition condition of a battery plate by an area-array camera according to the present invention;
FIG. 2 is a second perspective view of the device for detecting lithium deposition on a battery plate with an area-array camera according to the present invention;
FIG. 3 is a perspective view of a feeding platform and a backlight source of a detection device for detecting a lithium deposition condition of a battery plate by using an area-array camera according to the present invention;
FIG. 4 is a perspective view of a device for detecting the lithium deposition of a battery plate with an area-array camera according to the present invention, which includes a protective cover.
The reference numbers in the figures are: the device comprises an area array camera 1, a backlight source 2, a feeding plate 3, a feeding platform 4, a supporting plate 5, a fixing plate 6, a lens 7, a light hole 8, a sliding rail 9, a sliding block 10, an air cylinder 11, a stop block 12, a protective cover 13, a display 14, a three-color warning lamp 15, a starting button 16 and a battery pole piece 17.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides a detection device for detecting the lithium precipitation condition of a battery pole piece by using an area-array camera, which comprises: the device comprises an area array camera 1, a backlight source 2 and a feeding plate 3. The area array camera 1 is arranged above the feeding plate 3, the shooting direction of the area array camera is towards the feeding plate 3, the backlight source 2 is arranged below the feeding plate 3, the feeding plate 3 is used for placing a battery pole piece 17 to be detected, and the feeding plate 3 is made of a light-transmitting material. The area-array camera 1 performs shooting of a pixel matrix, which can acquire two-dimensional image information, and preferably employs a color area-array camera. The backlight 2 is used to provide a light source for shooting of the area-array camera 1.
In this embodiment, the detection device further includes: material loading platform 4 and Y axle mobile device, Y axle mobile device set up on material loading platform 4's top surface, and material loading board 3 sets up on Y axle mobile device, and area array camera 1 sets up in material loading platform 4's top surface top, carries out the back-and-forth movement through Y axle mobile device in order to drive material loading board 3 to area array camera 1 can shoot the different positions of battery pole piece 17.
Specifically, the top surface of the feeding platform 4 is provided with a supporting plate 5, the supporting plate 5 is provided with a fixing plate 6, and the area-array camera 1 is arranged on the fixing plate 6. The bottom of the area array camera 1 is provided with a lens 7, and the lens 7 penetrates through the fixing plate 6.
Specifically, the backlight 2 is arranged inside the feeding platform 4, the top surface of the feeding platform 4 is provided with a light hole 8 corresponding to the backlight 2, and the backlight 2 irradiates the upper plate 3 through the light hole 8.
In this embodiment, the Y-axis moving device specifically includes a slide rail 9, a slider 10, and a cylinder 11, the slide rail 9 and the cylinder 11 are disposed on the top surface of the feeding platform 4 at an interval, the slider 10 is disposed on the slide rail 9, the feeding plate 3 is disposed on the slider 10, the cylinder 11 is connected to the feeding plate 3, and the feeding plate 3 is driven by the cylinder 11 to slide on the slide rail 9.
Preferably, the upper material plate 3 is provided with a stop block 12, the stop block 12 is used for stopping the battery pole piece 17 from falling, and the number of the stop blocks 12 is preferably multiple.
In addition, the detection device can further comprise a protective cover 13, and the protective cover 13 is arranged on the feeding platform 4. The protection cover 13 may be provided with a display 14 for displaying an image taken by the area-array camera 1. The top of protection casing 13 can set up three-colour warning light 15 for the abnormal information of warning equipment.
In addition, a start button 16 may be disposed on the feeding platform 4 for controlling the start of the area-array camera 1 and other devices.
The invention also provides a detection method for detecting the lithium deposition condition of the battery pole piece by using the area-array camera, the detection method adopts the detection device for detection, and the detection method comprises the following steps:
and placing the battery pole piece 17 to be detected on the feeding plate 3.
And starting the area array camera 1 to shoot the surface of the battery pole piece 17 so as to acquire the image of the battery pole piece 17.
The image of the battery sheet 17 was visually inspected to analyze it for the presence of lithium analysis defects: specifically, the collected image of the battery pole piece can be transmitted to an industrial personal computer, the industrial personal computer is provided with a CCD (Charge coupled Device) vision software system, and the image of the battery pole piece is visually detected through the CCD vision software system, that is, the image is subjected to characteristic detection and characteristic analysis of lithium analysis defect, so as to determine whether the lithium analysis defect exists in the battery pole piece.
Compared with the prior art, the invention provides a detection device and a detection method for detecting the lithium precipitation condition of a battery pole piece by using an area-array camera, and the detection device and the detection method have the following beneficial effects: the battery pole piece to be detected is placed through the feeding plate, the surface of the battery pole piece is shot through the area array camera, images of the battery pole piece are collected, visual detection is carried out on the images of the battery pole piece to analyze whether the lithium analysis defect exists, the lithium analysis condition of the battery pole piece is detected through the visual detection mode, the battery pole piece detection mode is compared with the existing manual naked eye judgment mode, a large amount of energy and time are not required to be consumed, and the detection accuracy is improved.
It is to be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. A detection device for detecting a lithium deposition condition of a battery pole piece by using an area-array camera, the detection device comprising: the battery pole piece detection device comprises an area array camera, a backlight source and an upper material plate, wherein the area array camera is arranged above the upper material plate, the shooting direction of the area array camera faces the upper material plate, the backlight source is arranged below the upper material plate, the upper material plate is used for placing a battery pole piece to be detected, and the upper material plate is made of a light-transmitting material.
2. The detection device according to claim 1, further comprising: the feeding device comprises a feeding platform and a Y-axis moving device, wherein the Y-axis moving device is arranged on the top surface of the feeding platform, and the feeding plate is arranged on the Y-axis moving device.
3. The detection device according to claim 2, wherein: the area array camera is arranged above the top surface of the feeding platform.
4. The detection device according to claim 3, wherein: the top surface of material loading platform is equipped with the backup pad, be equipped with the fixed plate in the backup pad, area array camera set up in on the fixed plate.
5. The detection device according to claim 4, wherein: the bottom of the area array camera is provided with a lens, and the lens penetrates through the fixing plate.
6. The detection device according to claim 2, wherein: the backlight set up in the inside of material loading platform, the top surface of material loading platform corresponds the backlight is equipped with the light trap.
7. The detection device according to claim 2, wherein: the Y-axis moving device comprises a sliding rail, a sliding block and an air cylinder, the sliding rail and the air cylinder are arranged on the top surface of the feeding platform at intervals, the sliding block is arranged on the sliding rail, the feeding plate is arranged on the sliding block, and the air cylinder is connected with the feeding plate.
8. The detection device according to claim 2, wherein: and a stop block is arranged on the feeding plate.
9. The detection device according to claim 2, further comprising: the protection casing, the protection casing set up in on the material loading platform, be equipped with the display on the protection casing.
10. A detection method for detecting a lithium deposition condition of a battery pole piece by using an area-array camera, wherein the detection method is performed by using the detection device of any one of claims 1 to 9, and the detection method comprises the following steps:
placing a battery pole piece to be detected on the feeding plate;
starting the area-array camera to shoot the surface of the battery pole piece so as to acquire an image of the battery pole piece;
and visually detecting the image of the battery pole piece to analyze whether the battery pole piece has a lithium analysis defect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210343848.9A CN114923931A (en) | 2022-03-31 | 2022-03-31 | Detection device and method for detecting lithium precipitation condition of battery pole piece by using area-array camera |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210343848.9A CN114923931A (en) | 2022-03-31 | 2022-03-31 | Detection device and method for detecting lithium precipitation condition of battery pole piece by using area-array camera |
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| Publication Number | Publication Date |
|---|---|
| CN114923931A true CN114923931A (en) | 2022-08-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210343848.9A Pending CN114923931A (en) | 2022-03-31 | 2022-03-31 | Detection device and method for detecting lithium precipitation condition of battery pole piece by using area-array camera |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012194000A (en) * | 2011-03-15 | 2012-10-11 | Micronics Japan Co Ltd | Automatic camera-resolution measurement method, automatic camera-resolution adjustment method, and image inspection method and device |
| CN206772846U (en) * | 2017-03-30 | 2017-12-19 | 中航锂电（洛阳）有限公司 | A kind of battery pole piece surface quality detection device |
| CN207223795U (en) * | 2017-08-11 | 2018-04-13 | 中国电子科技集团公司第十八研究所 | A kind of lithium ion sample detection fixing device |
| CN208459716U (en) * | 2018-07-27 | 2019-02-01 | 北京兆维智能装备有限公司 | A kind of liquid crystal display detection device |
| CN109709102A (en) * | 2019-01-17 | 2019-05-03 | 广州超音速自动化科技股份有限公司 | Die-cutting machine lithium battery pole slice physical imperfection detection system, method and device |
| CN109855532A (en) * | 2018-12-27 | 2019-06-07 | 东旭科技集团有限公司 | Glass size detection device and method |
| CN213633211U (en) * | 2020-11-03 | 2021-07-06 | 常州微亿智造科技有限公司 | Ceramic plate appearance detection device |
-
2022
- 2022-03-31 CN CN202210343848.9A patent/CN114923931A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012194000A (en) * | 2011-03-15 | 2012-10-11 | Micronics Japan Co Ltd | Automatic camera-resolution measurement method, automatic camera-resolution adjustment method, and image inspection method and device |
| CN206772846U (en) * | 2017-03-30 | 2017-12-19 | 中航锂电（洛阳）有限公司 | A kind of battery pole piece surface quality detection device |
| CN207223795U (en) * | 2017-08-11 | 2018-04-13 | 中国电子科技集团公司第十八研究所 | A kind of lithium ion sample detection fixing device |
| CN208459716U (en) * | 2018-07-27 | 2019-02-01 | 北京兆维智能装备有限公司 | A kind of liquid crystal display detection device |
| CN109855532A (en) * | 2018-12-27 | 2019-06-07 | 东旭科技集团有限公司 | Glass size detection device and method |
| CN109709102A (en) * | 2019-01-17 | 2019-05-03 | 广州超音速自动化科技股份有限公司 | Die-cutting machine lithium battery pole slice physical imperfection detection system, method and device |
| CN213633211U (en) * | 2020-11-03 | 2021-07-06 | 常州微亿智造科技有限公司 | Ceramic plate appearance detection device |
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