CN219759679U - Novel long electric core diaphragm ending structure - Google Patents

Novel long electric core diaphragm ending structure Download PDF

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Publication number
CN219759679U
CN219759679U CN202223582683.5U CN202223582683U CN219759679U CN 219759679 U CN219759679 U CN 219759679U CN 202223582683 U CN202223582683 U CN 202223582683U CN 219759679 U CN219759679 U CN 219759679U
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China
Prior art keywords
diaphragm
assembly
lamination
ending
cell
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Active
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CN202223582683.5U
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Chinese (zh)
Inventor
姜林华
黎帆
李森
吴少丹
安靖全
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Jiewei Power Industry Jiaxing Co ltd
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Jiewei Power Industry Jiaxing Co ltd
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Priority to CN202223582683.5U priority Critical patent/CN219759679U/en
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Abstract

The utility model discloses a novel long-cell diaphragm ending structure which comprises a lamination assembly, a moving assembly, a diaphragm cutter assembly, a diaphragm roller passing assembly and a compression ending assembly, wherein the lamination assembly is connected with the diaphragm cutter assembly; the lamination assembly is arranged on one side of the diaphragm passing roller assembly, the diaphragm passing roller assembly is used for conveying the diaphragm, and the lamination assembly is used for stacking the pole piece and the diaphragm; the lamination assembly is arranged above the moving assembly, so that the moving assembly drives the lamination assembly to move to the other side of the diaphragm passing roller assembly; the diaphragm cutter assembly is arranged above the lamination assembly and is used for cutting off the diaphragm; the compaction ending assembly is arranged above the lamination assembly and used for realizing the fixation of the pole piece.

Description

Novel long electric core diaphragm ending structure
Technical Field
The utility model relates to the technical field of lithium batteries, in particular to a novel long-cell diaphragm ending structure.
Background
The lamination process can improve the utilization space of the lithium battery, reduce the internal resistance of the battery core, improve the multiplying power performance of the battery core, and is more and more favored by lithium power plants; along with the popularization of lamination machines, battery manufacturers have higher lamination efficiency, so that the lamination mode at present is developed from the left-right movement of a lamination platform to the fixation of the lamination platform, and the left-right movement of a diaphragm is fast to realize the improvement of lamination efficiency;
because the lamination process has high flexibility and larger size, the energy density of the battery cell is also larger, the size of the lamination battery is longer and longer, and each supplier pushes out a long blade and a short blade battery cell in a dispute manner; because the battery cell is longer and longer in size, the traditional diaphragm ending mode cannot be realized on equipment, so that the diaphragm ending process of the blade battery cell is canceled at present, and only the diaphragm covers the outermost negative electrode plate.
As shown in fig. 1, the conventional diaphragm ending method specifically includes: after the diaphragm coats the uppermost layer of the negative pole piece, a battery core taking manipulator grabs a battery core to the left side of a lamination platform, an upper cutter descends to cut the diaphragm, an air pipe at the upper part of the lamination platform blows air to blow the diaphragm to the right side, meanwhile, the lamination platform slowly and synchronously moves to the right side, the diaphragm is restored to the original position by the movement cooperation of the air blowing and the lamination platform, a pressing cutter is fixed, and the lamination machine continues to start production; however, as the diaphragm is cut on the right side of the lamination platform, the diaphragm cannot be fixed on the lamination platform after the diaphragm is cut, so that the lamination machine cannot continuously produce.
Aiming at the technical problems, the utility model provides a novel long-cell diaphragm ending structure.
Disclosure of Invention
The utility model aims at overcoming the defects of the prior art, provides a novel long cell diaphragm ending structure, and solves the defects of the existing lamination machine ending mode.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
a novel long cell membrane ending structure comprises a lamination assembly, a moving assembly, a membrane cutter assembly, a membrane roller assembly and a compaction ending assembly;
the lamination assembly is arranged on one side of the diaphragm passing roller assembly, the diaphragm passing roller assembly is used for conveying the diaphragm, and the lamination assembly is used for stacking the pole piece and the diaphragm; the lamination assembly is arranged above the moving assembly, so that the moving assembly drives the lamination assembly to move to the other side of the diaphragm passing roller assembly; the diaphragm cutter assembly is arranged above the lamination assembly and is used for cutting off the diaphragm; the compaction ending assembly is arranged above the lamination assembly and used for realizing the fixation of the pole piece.
Further, the lamination assembly comprises a lamination platform, and the pole pieces and the diaphragm are stacked on the lamination platform.
Further, the moving assembly comprises a sliding rail and a motor connected with the sliding rail; a sliding groove is formed in the sliding rail, a sliding block matched with the sliding groove is arranged at the bottom of the lamination platform, so that the motor drives the sliding block to move in the sliding groove, and the lamination platform is driven to move.
Further, a pressing knife is arranged on the lamination platform and used for fixing the pole piece and/or the diaphragm on the lamination platform.
Further, a battery cell clamping jaw is arranged on the other side of the diaphragm passing roller assembly and used for clamping and removing the battery cells.
Further, a cutter is further arranged above the lamination platform and is used for cutting off the diaphragm.
Further, a diaphragm clamping jaw is arranged above the lamination platform and used for clamping a diaphragm.
Compared with the prior art, the utility model has the following beneficial effects:
1. the stress of the battery cell diaphragm is ensured, and the diaphragm is prevented from being wrinkled;
2. the time required by diaphragm ending is shortened, and the diaphragm ending time of the scheme is shortened to 6-7 s from 8-10 s at present;
3. the diaphragm ending mechanism operates independently, is not completed on the lamination platform, and does not delay normal production of the lamination.
Drawings
Fig. 1 is a diagram of a battery cell diaphragm ending structure provided in the background art;
FIG. 2 is a schematic view of a lamination stage provided in accordance with one embodiment positioned on the left side of a roller;
FIG. 3 is a schematic view of the lamination stage provided in accordance with the first embodiment moving to the right side of the over-roller;
fig. 4 is a schematic diagram illustrating clamping of a core electrode sheet according to the first embodiment;
FIG. 5 is a schematic view of a cutter cutting a diaphragm provided in accordance with one embodiment;
FIG. 6 is a schematic view of a first embodiment of a provided cell pole piece moved to a pinch-off assembly;
FIG. 7 is a schematic view showing the completion of membrane coverage provided in accordance with the first embodiment;
FIG. 8 is a top view of the lamination stage provided in accordance with the first embodiment moved to the right side of the over-roller;
fig. 9 is a top view of a clamping of a core electrode sheet according to the first embodiment;
FIG. 10 is a top view of a cutter severing the diaphragm provided in accordance with one embodiment;
FIG. 11 is a top view of a cell pole piece provided in accordance with an embodiment;
FIG. 12 is a top view of a completed membrane coverage provided in accordance with one embodiment;
wherein: 1. a lamination assembly; 11. a lamination platform; 12. a pressing knife; 2. a moving assembly; 3. a diaphragm cutter assembly; 4. a diaphragm passing roller assembly; 5. compressing the ending assembly; 6. a cell clamping jaw; 7. a diaphragm clamping jaw; 8. a pole piece; 9. a diaphragm.
Detailed Description
Other advantages and effects of the present utility model will become apparent to those skilled in the art from the following disclosure, which describes the embodiments of the present utility model with reference to specific examples. The utility model may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present utility model. It should be noted that the following embodiments and features in the embodiments may be combined with each other without conflict.
The utility model aims at overcoming the defects of the prior art and provides a novel long-cell diaphragm ending structure.
Example 1
The embodiment provides a novel long cell membrane ending structure, which comprises a lamination assembly 1, a moving assembly 2, a membrane cutter assembly 3, a membrane roller assembly 4, a compaction ending assembly 5, a cell clamping jaw 6 and a membrane clamping jaw 7, as shown in fig. 2-12.
The lamination assembly 1 comprises a lamination platform 11 and a sliding block arranged at the bottom of the lamination platform 11, wherein the lamination platform 11 is a platform and is used for stacking the pole pieces 8 and the diaphragms 9.
The lamination platform 11 is also provided with a pressing knife 12, and after the pole piece 8 and the diaphragm 9 are arranged on the lamination platform 11, the pole piece 8 and the diaphragm 9 are fixed on the lamination platform 11 through the pressing knife 12.
The moving assembly 2 comprises a sliding rail and a motor connected with the sliding rail, and a sliding groove matched with the sliding block is formed in the sliding rail so that the sliding block is arranged in the sliding groove; when the lamination platform 11 needs to be moved, the motor is started, so that the motor drives the sliding block to move in the sliding groove, and the lamination platform 11 moves to the target position on the sliding rail.
The diaphragm roller assembly 4 is arranged above the lamination platform 11, the diaphragm roller assembly 4 comprises a plurality of rollers and a motor for controlling the rollers to rotate, and 4 rollers are arranged in the embodiment; the diaphragm 9 is arranged between the two passing rollers, and when the motor controls the passing rollers to rotate, the diaphragm 9 is flattened by the passing rollers and is conveyed to cover the lamination platform 11 and the pole piece 8; and the stress of the cell membrane is ensured through passing the roller.
In the initial state, lamination platform 11 is arranged in the diaphragm and passes roller subassembly 4 left side, when the diaphragm 9 covers, through moving subassembly 2 control lamination platform 1 drive pole piece 8, diaphragm 9 and move to the diaphragm and pass roller subassembly 4 right side.
The electric core clamping jaw 6 sets up in the diaphragm and crosses roller assembly 4 right side and lamination platform 11 top, and electric core clamping jaw 6 includes moving part, clamping jaw, cylinder, when needs use electric core clamping jaw 6, moves to the position of pole piece 8 through moving part control clamping jaw, goes up and down through cylinder control clamping jaw, and then realizes the clamp of pole piece 8 and gets.
The diaphragm cutter assembly 3 sets up in the diaphragm and crosses roller assembly 4 right side and lamination platform 11 top, and diaphragm cutter assembly 3 includes moving part, cutter, cylinder, when needs use diaphragm cutter assembly 3, moves to the position of diaphragm 9 through moving part control cutter, goes up and down through cylinder control cutter, and then realizes cutting off of diaphragm 9.
The diaphragm clamping jaw 7 is arranged on the right side of the diaphragm passing roller assembly 4 and above the lamination platform 11, the diaphragm clamping jaw 7 comprises a moving part, clamping jaws and an air cylinder, when the diaphragm clamping jaw 7 is required to be used, the clamping jaws are controlled to move to the position of the diaphragm 9 through the moving part, and the lifting of the clamping jaws is controlled through the air cylinder, so that clamping of the diaphragm 9 and lifting of the height are achieved.
The compaction ending assembly 5 is arranged above the diaphragm passing roller assembly 4 and the lamination platform 11, the compaction ending assembly 5 comprises a compaction platform and a pressing cutter, and when the pole piece 8 and the diaphragm 9 are conveyed onto the compaction platform, the pressing cutter on the compaction platform fixes the pole piece 8 and the diaphragm 9; the diaphragm ending component of the embodiment independently operates, is not completed on the lamination platform, and does not delay normal production of the lamination.
The specific application mode of the novel long-cell diaphragm ending structure of the embodiment is as follows:
1. in an initial state, the lamination platform is arranged on the left side of the diaphragm passing roller assembly, the diaphragm is firstly arranged on the surface of the lamination platform through the passing roller (the direction is from right to left), then the positive and negative pole pieces of the battery core and the diaphragm are sequentially stacked to complete stacking of the battery core, and at the moment, the diaphragm is arranged on the uppermost layer of the battery core and is fixed through the passing roller; a pressing knife arranged above the lamination platform presses the uppermost layer of the pole piece, so that the pole piece is fixed on the lamination platform; as shown in fig. 2;
2. the moving assembly at the bottom of the lamination platform drives the diaphragm to move from the left side to the right side of the diaphragm passing roller assembly, and the diaphragm is not arranged on the uppermost layer of the battery cell at the moment; as shown in fig. 3 and 8;
3. moving the right battery core clamping jaw to the lamination platform, clamping and taking the battery core pole piece arranged on the lamination platform to the right side of the lamination platform so that the battery core pole piece is not arranged on the lamination platform; at this time, the diaphragm can be elongated along with the battery cell, and part of the diaphragm covers the lamination platform; a pressing knife on the lamination platform fixes the diaphragm arranged on the lamination platform; as shown in fig. 4 and 9;
4. after the pressing knife fixes the diaphragm, the diaphragm cutter assembly above descends to cut off the diaphragm; then moving the diaphragm clamping jaw to the position of the cut diaphragm, clamping the cut diaphragm by adopting the diaphragm clamping jaw, and then lifting the diaphragm clamping jaw by the cylinder so as to realize the lifting of the diaphragm, so that the cut diaphragm and the battery cell are in high avoidance; as shown in fig. 5 and 10;
5. the battery cell lamination, the cut-off diaphragm and the diaphragm clamping jaw are moved to the position of the compressing and ending assembly through the battery cell clamping jaw, the pole piece is fixed through the pressing knife of the compressing and ending assembly, at the moment, the diaphragm clamping jaw moves the clamped diaphragm rightwards to realize the page turning action of the diaphragm, so that the diaphragm covers the uppermost layer of the battery cell pole piece, and the covering of the outermost diaphragm on the pole piece is realized; as shown in fig. 6-7, 11-12.
In this embodiment, after the diaphragm cutter assembly cuts the diaphragm, the lamination platform may perform the next pole piece stacking and diaphragm covering operation, and the current electrode piece is transferred to the compression ending assembly for ending operation.
Compared with the prior art, the utility model has the following beneficial effects:
1. the stress of the battery cell diaphragm is ensured, and the diaphragm is prevented from being wrinkled;
2. the time required by diaphragm ending is shortened, and the diaphragm ending time of the scheme is shortened to 6-7 s from 8-10 s at present;
3. the diaphragm ending mechanism operates independently, is not completed on the lamination platform, and does not delay normal production of the lamination.
Note that the above is only a preferred embodiment of the present utility model and the technical principle applied. It will be understood by those skilled in the art that the present utility model is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the utility model. Therefore, while the utility model has been described in connection with the above embodiments, the utility model is not limited to the embodiments, but may be embodied in many other equivalent forms without departing from the spirit or scope of the utility model, which is set forth in the following claims.

Claims (7)

1. The novel long-cell diaphragm ending structure is characterized by comprising a lamination assembly, a moving assembly, a diaphragm cutter assembly, a diaphragm roller passing assembly and a compression ending assembly;
the lamination assembly is arranged on one side of the diaphragm passing roller assembly, the diaphragm passing roller assembly is used for conveying the diaphragm, and the lamination assembly is used for stacking the pole piece and the diaphragm; the lamination assembly is arranged above the moving assembly, so that the moving assembly drives the lamination assembly to move to the other side of the diaphragm passing roller assembly; the diaphragm cutter assembly is arranged above the lamination assembly and is used for cutting off the diaphragm; the compaction ending assembly is arranged above the lamination assembly and used for realizing the fixation of the pole piece.
2. The novel long cell membrane end-to-end structure of claim 1, wherein the lamination assembly comprises a lamination platform on which the pole pieces and the membrane are stacked.
3. The novel long cell membrane ending structure of claim 2, wherein the moving assembly comprises a sliding rail and a motor connected with the sliding rail; a sliding groove is formed in the sliding rail, a sliding block matched with the sliding groove is arranged at the bottom of the lamination platform, so that the motor drives the sliding block to move in the sliding groove, and the lamination platform is driven to move.
4. The novel long-cell diaphragm ending structure of claim 2, wherein a pressing knife is arranged on the lamination platform and used for fixing the pole piece and/or the diaphragm on the lamination platform.
5. The novel long-cell membrane ending structure of claim 1, wherein a cell clamping jaw is arranged on the other side of the membrane roller assembly and used for clamping and removing a cell.
6. The novel long-cell diaphragm ending structure of claim 2, wherein a cutter is further arranged above the lamination platform and is used for cutting off the diaphragm.
7. The novel long-cell diaphragm ending structure of claim 2, wherein a diaphragm clamping jaw is further arranged above the lamination platform and used for clamping a diaphragm.
CN202223582683.5U 2022-12-31 2022-12-31 Novel long electric core diaphragm ending structure Active CN219759679U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202223582683.5U CN219759679U (en) 2022-12-31 2022-12-31 Novel long electric core diaphragm ending structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202223582683.5U CN219759679U (en) 2022-12-31 2022-12-31 Novel long electric core diaphragm ending structure

Publications (1)

Publication Number Publication Date
CN219759679U true CN219759679U (en) 2023-09-26

Family

ID=88075522

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202223582683.5U Active CN219759679U (en) 2022-12-31 2022-12-31 Novel long electric core diaphragm ending structure

Country Status (1)

Country Link
CN (1) CN219759679U (en)

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