CN114335663A - Echelon utilization battery cell, battery module and dismounting method of echelon utilization battery cell - Google Patents
Echelon utilization battery cell, battery module and dismounting method of echelon utilization battery cell Download PDFInfo
- Publication number
- CN114335663A CN114335663A CN202111554892.6A CN202111554892A CN114335663A CN 114335663 A CN114335663 A CN 114335663A CN 202111554892 A CN202111554892 A CN 202111554892A CN 114335663 A CN114335663 A CN 114335663A
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- blue film
- battery
- film
- cell
- battery cell
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Links
- 238000000034 method Methods 0.000 title claims abstract description 10
- 238000005520 cutting process Methods 0.000 claims abstract description 17
- 239000003292 glue Substances 0.000 claims description 10
- 239000010410 layer Substances 0.000 claims description 9
- 239000012790 adhesive layer Substances 0.000 claims description 5
- 238000005215 recombination Methods 0.000 abstract description 6
- 230000006798 recombination Effects 0.000 abstract description 6
- 239000012528 membrane Substances 0.000 abstract description 5
- 238000012423 maintenance Methods 0.000 abstract description 4
- 230000008901 benefit Effects 0.000 abstract description 3
- 230000005611 electricity Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000004146 energy storage Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Images
Classifications
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- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
-
- 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
Abstract
The invention relates to a battery cell, a battery module and a disassembling method of the battery cell by echelon utilization in the technical field of batteries, wherein the battery cell comprises a battery cell and a blue membrane, and the blue membrane is connected to the outer wall of the battery cell; the blue film comprises a first blue film, a second blue film and an easy-to-pull blue film, the first blue film is connected to the second blue film through the easy-to-pull blue film, and the first blue film and the second blue film are respectively connected to two ends of the battery cell; and after the easy-to-draw blue film is cut by the film cutting knife, the second blue film is separated from the first blue film. According to the battery module, the battery core can be effectively and rapidly detached and replaced through the easy-to-pull structure of the blue film, the echelon utilization of the battery core is realized, the maintenance of the battery core failure or recombination in the battery module is facilitated, the time is saved, and the comprehensive economic benefit is improved.
Description
Technical Field
The invention relates to the technical field of batteries, in particular to a battery cell for echelon utilization, a battery module and a disassembling method of the battery cell for echelon utilization.
Background
The existing battery Pack is developed towards ctp (celltopack), and the connection mode between the battery core and Pack is usually bonded by using a structural adhesive.
1. When a single battery cell in the Pack system fails, the battery cell is not easy to replace, and extremely high maintenance cost caused by abandonment or complete disassembly of the whole Pack system is easy to cause;
2. when the Pack system is in the later life, the demand of the current product cannot be met, but the Pack system can be recombined to be used continuously as an energy storage mode. At present, due to the glue sealing, the recombination needs to be completely disassembled, and the disassembling workload is large.
The patent document retrieval of the prior art finds that the Chinese invention patent publication number is CN213520157U, discloses a echelon cell recombination structure, belongs to the technical field of electric vehicle manufacturing, and solves the problem that the working voltage of a two-wheeled electric vehicle is difficult to perfectly match due to the fact that the echelon battery in the prior art can only be disassembled into a module stage and can not be disassembled into a cell stage. Including a plurality of groups's electric core group that link together, the electric core group includes echelon electricity core, lower plate and holder, the lower extreme of echelon electricity core insert in the lower plate and with lower plate interference fit, the upper end of echelon electricity core insert in the holder and with holder interference fit, one side of holder and lower plate is equipped with connecting slot, the opposite side of holder and lower plate is equipped with the connection pothook, and adjacent two sets of electric core group realizes being connected on connecting the pothook through connecting the pothook joint, every echelon electricity core all with aluminium row fixed connection. The invention provides a battery cell with an easy-to-pull structure, and solves the problem that the battery cell and a shell cannot be quickly separated. Therefore, the method disclosed in the document and the invention belong to different inventive concepts.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a battery cell, a battery module and a disassembling method of the battery cell by using echelon.
The battery cell for gradient utilization comprises a battery cell and a blue film, wherein the blue film is connected to the outer wall of the battery cell;
the blue film comprises a first blue film, a second blue film and an easy-to-pull blue film, the first blue film is connected to the second blue film through the easy-to-pull blue film, and the first blue film and the second blue film are respectively connected to two ends of the battery cell;
and after the easy-to-draw blue film is cut by the film cutter, the second blue film is separated from the first blue film, and the battery core is separated from the second blue film.
In some embodiments, the integral blue film is wrapped on the battery core.
The invention also provides a battery module comprising the echelon utilization battery cell, which comprises a glue layer and a battery pack box body, wherein the bottom of the echelon utilization battery cell is connected to the battery pack box body through the glue layer, and the echelon utilization battery cells are arrayed on the battery pack box body.
In some embodiments, the second blue film is connected to the battery pack case through an adhesive layer.
In some embodiments, the battery further comprises a connecting member, and the connecting member is connected to the multiple gradient utilization cells.
The invention also provides a method for disassembling the echelon utilization battery cell, which comprises the following steps:
s1, clamping the film cutting knife on the outer surface of the battery cell, and applying acting force to the easy-to-draw blue film through the film cutting knife to separate the easy-to-draw blue film from the first blue film and the second blue film respectively;
s2, separating the easy-to-pull blue film to separate the battery cell from the second blue film, and taking out the battery cell;
and S3, removing the second blue film on the battery pack box body and the glue layer connected with the second blue film.
In some embodiments, the inner diameter of the film cutting knife is larger than the outer diameter of the cell.
In some embodiments, the film cutting knife comprises a shell and a blade, and the bottom of the shell is connected with the blade.
In some embodiments, the inner diameter of the casing > the outer diameter of the cell.
In some embodiments, the inner diameter of the cutting edge is greater than or equal to the outer diameter of the cell.
Compared with the prior art, the invention has the following beneficial effects:
according to the battery module, the battery core can be effectively and rapidly detached and replaced through the easy-to-pull structure of the blue film, the echelon utilization of the battery core is realized, the maintenance of the battery core failure or recombination in the battery module is facilitated, the time is saved, and the comprehensive economic benefit is improved.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
FIG. 1 is a schematic structural view of a blue film cut by the film cutter of the present invention;
FIG. 2 is a schematic view of a battery module according to the present invention;
FIG. 3 is a schematic diagram of the mechanism of the blue film according to the present invention;
fig. 4 is a schematic structural diagram of the film cutter of the invention before cutting the battery cell;
fig. 5 is a schematic structural diagram of the battery core cut by the film cutter of the invention.
Reference numbers in the figures:
the battery comprises a battery core 1, a blue film 2, a first blue film 21, a second blue film 22, an easy-to-draw blue film 23, a echelon utilization battery core 100, a glue layer 200, a battery pack box 300, a connecting piece 400 and a film cutting knife 3.
Detailed Description
The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the invention, but are not intended to limit the invention in any way. It should be noted that it would be obvious to those skilled in the art that various changes and modifications can be made without departing from the spirit of the invention. All falling within the scope of the present invention.
Example 1
The invention provides a battery cell for gradient utilization, which comprises a battery cell 1 and a blue membrane 2, wherein the blue membrane 2 is connected to the outer wall of the battery cell 1 as shown in figures 1 and 3; the blue film 2 comprises a first blue film 21, a second blue film 22 and an easy-to-draw blue film 23, the first blue film 21 is connected to the second blue film 22 through the easy-to-draw blue film 23, and the first blue film 21 and the second blue film 22 are respectively connected to two ends of the battery cell. The integrated blue film 2 is wrapped on the outer side of the battery core 1.
More specifically, after the easy-open blue film 23 is cut by the film cutter 3, the second blue film 22 is separated from the first blue film 21, and the battery cell 1 is separated from the second blue film 22. The film cutting knife 3 comprises a shell 31 and a blade 32, wherein the bottom of the shell 31 is connected with the blade 32. Wherein, the inner diameter of the shell 31 is larger than the outer diameter of the battery cell 1, and the inner diameter of the blade 32 is larger than or equal to the outer diameter of the battery cell 1.
Example 2
The invention further provides a battery module, as shown in fig. 2, which includes the battery cell 100, the adhesive layer 200, the battery pack case 300 and the connecting member 400 in the embodiment 1, wherein the battery cell 100 is connected to the battery pack case 300 through the adhesive layer 200 in the step. More specifically, the second blue film 22 is connected to the battery pack case 300 through the adhesive layer 200. The battery cells 100 are arranged in an array on the battery pack case 300, and a plurality of battery cells 100 are fixed by the connector 400. Preferably, the connector 400 may take the form of a strap or a welded or bolted connection of multiple pieces of material with structural strength. As shown in the figure, in this embodiment 2, the connector 400 is fixed to the outside of the multiple battery cells 100 in steps by using a binding band.
Example 3
This embodiment 3 is completed on the basis of embodiment 2, and when a certain battery cell 1 fails, a dismantling operation needs to be performed on a single battery cell 1, as shown in fig. 4 to 5, including the following steps:
s1, clamping the film cutting knife 3 into the outer surface of the battery core 1, and applying an acting force to the easy-to-draw blue film 23 through the film cutting knife 3 to separate the easy-to-draw blue film 23 from the first blue film 21 and the second blue film 22 respectively;
s2, separating the easy-to-pull blue film 23 to separate the battery cell 1 from the second blue film 22, and taking out the battery cell 1;
s3, removing the second blue film 22 on the battery pack case 300 and the glue layer 200 connected with the second blue film 22;
and S4, replacing the battery cell 1 with a new battery cell to finish maintenance.
Example 4
This embodiment 4 is completed on the basis of embodiment 2, and when the service life of the battery module is terminated, the battery cell 1 may also be used for storing energy, and when the voltage of the battery cell 1 and the like are not suitable for the energy storage system, the battery cell 1 needs to be sufficient, and the battery cell 1 needs to be removed in the recombination process, as shown in fig. 4-5, the method includes the following steps:
s1, clamping the film cutting knife 3 into the outer surface of the battery core 1, and applying an acting force to the easy-to-draw blue film 23 through the film cutting knife 3 to separate the easy-to-draw blue film 23 from the first blue film 21 and the second blue film 22 respectively;
s2, separating the easy-to-pull blue film 23 to separate the battery cell 1 from the second blue film 22, and taking out the battery cell 1;
s3, removing the second blue film 22 on the battery pack case 300 and the glue layer 200 connected with the second blue film 22;
and S4, carrying out new cell 1 recombination.
In the above embodiment, through the electric core of easy-to-draw blue membrane structure, can be quick disassemble, improve the operating efficiency, be favorable to the echelon utilization of electric core 1.
In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present application.
The foregoing description of specific embodiments of the present invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by one skilled in the art within the scope of the appended claims without departing from the spirit of the invention. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.
Claims (10)
1. The echelon utilization battery cell is characterized by comprising a battery cell (1) and a blue film (2), wherein the blue film (2) is connected to the outer wall of the battery cell (1);
the blue film (2) comprises a first blue film (21), a second blue film (22) and an easy-to-draw blue film (23), the first blue film (21) is connected to the second blue film (22) through the easy-to-draw blue film (23), and the first blue film (21) and the second blue film (22) are respectively connected to two ends of the battery cell (1).
2. The echelon utilization cell of claim 1, characterized in that the integral blue film (2) is wrapped on the cell (1).
3. A battery module comprising the battery cells of any one of claims 1-2, wherein the battery module comprises a glue layer (200) and a battery pack case (300), the bottoms of the battery cells (100) of the battery cells of the battery pack are connected to the battery pack case (300) through the glue layer (200), and the battery cells (100) of the battery pack case (300) are arranged in an array.
4. The battery module according to claim 3, wherein the second blue film (22) is attached to the battery pack case (300) through the adhesive layer (200).
5. The battery module according to claim 3, further comprising a connector (400), wherein the connector (400) is connected to a plurality of the gradient utilization cells (100).
6. The method for disassembling the echelon utilization battery cell in claim 1, characterized by comprising the following steps:
s1, clamping the film cutting knife (3) into the outer surface of the battery core (1), and applying acting force to the easy-to-draw blue film (23) through the film cutting knife (3) to enable the easy-to-draw blue film (23) to be separated from the first blue film (21) and the second blue film (22) respectively;
s2, separating the easy-to-draw blue film (23), separating the battery cell (1) from the second blue film (22), and taking out the battery cell (1);
s3, removing the second blue film (22) on the battery pack box body (300) and the glue layer (200) connected with the second blue film (22).
7. The echelon utilization cell of claim 6, characterized in that the inner diameter of the film cutter (3) is greater than the outer diameter of the cell (1).
8. The echelon utilization cell of claim 7, characterized in that the film cutting knife (3) comprises a shell (31) and a blade (32), and the bottom of the shell (31) is connected with the blade (32).
9. The echelon utilization cell of claim 8, characterized in that the inner diameter of the housing (31) is > the outer diameter of the cell (1).
10. The echelon utilization cell of claim 8, characterized in that the inner diameter of the cutting edge (32) is greater than or equal to the outer diameter of the cell (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111554892.6A CN114335663B (en) | 2021-12-17 | 2021-12-17 | Gradient utilization battery core, battery module and disassembly method of gradient utilization battery core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111554892.6A CN114335663B (en) | 2021-12-17 | 2021-12-17 | Gradient utilization battery core, battery module and disassembly method of gradient utilization battery core |
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| Publication Number | Publication Date |
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| CN114335663A true CN114335663A (en) | 2022-04-12 |
| CN114335663B CN114335663B (en) | 2024-03-15 |
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|---|---|
| CN114335663B (en) | 2024-03-15 |
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