CN216488187U - Battery core lamination equipment - Google Patents

Battery core lamination equipment Download PDF

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Publication number
CN216488187U
CN216488187U CN202122384225.XU CN202122384225U CN216488187U CN 216488187 U CN216488187 U CN 216488187U CN 202122384225 U CN202122384225 U CN 202122384225U CN 216488187 U CN216488187 U CN 216488187U
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China
Prior art keywords
sheet
stacking table
stacking
diaphragm
clamping device
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CN202122384225.XU
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Chinese (zh)
Inventor
徐宏
朱世亮
韩笑
李东辉
曾亚维
孟楠
唐兆吉
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Wuxi Autowell Technology Co Ltd
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Wuxi Autowell Technology Co Ltd
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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

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Abstract

The application discloses electric core lamination equipment, this electric core lamination equipment include diaphragm feedway, negative pole piece feedway, positive plate feedway, paster device, lamellar body clamping device and stack the platform, wherein: the membrane feeding device provides a membrane; the surface mounting device is positioned between the diaphragm feeding device and the stacking table and is used for symmetrically attaching the negative plates provided by the negative plate feeding device and the positive plates provided by the positive plate feeding device to the diaphragm pulled out from the diaphragm feeding device to form a laminated sheet body; the sheet clamping device clamps the first end and the second end of the laminated sheet; the sheet clamping device and the stacking table perform relative circular motion to stack the clamped laminated sheets on the stacking table. This application carries out relative circular motion with lamellar body clamping device and stacking platform, makes the diaphragm of range upon range of lamellar body and not forming range upon range of lamellar body be in the state of tightening, has avoided the condition of fold to appear among the diaphragm folding process, has improved electric core lamination quality.

Description

Battery core lamination equipment
Technical Field
The utility model belongs to the technical field of lithium battery manufacturing, and relates to a battery core lamination device.
Background
With the application of new energy, the capacity requirement of lithium batteries is higher and higher. At present, a battery cell stacking process exists, namely, a swing roller mechanism is matched with a stacking table in a transverse relative movement manner, a diaphragm is controlled to be stacked on the stacking table, positive electrode plates and negative electrode plates need to be placed at intervals in sequence at the interval of stacking the diaphragm on the stacking table, and the stacking on the stacking table is a circular stacking of the negative electrode, the diaphragm, the positive electrode, the diaphragm and the negative electrode plate.
Because the stacking mode needs the roller swinging mechanism and the stacking table to move relatively, the diaphragm cannot keep a tight state in the movement process of the stacking table, and the folding condition of the diaphragm in the folding process can be caused, so that the lamination quality of the battery core is influenced.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem in the prior art, the application provides a battery core lamination equipment, technical scheme as follows:
the utility model provides a battery core lamination equipment, includes diaphragm feedway, negative pole piece feedway, positive plate feedway, paster device, lamellar body clamping device and stacks the platform, wherein:
the membrane feeding device provides a membrane;
the surface mounting device is positioned between the diaphragm feeding device and the stacking table and is used for symmetrically attaching the negative plates provided by the negative plate feeding device and the positive plates provided by the positive plate feeding device to the diaphragms drawn out from the diaphragm feeding device to form laminated sheets;
the sheet clamping device clamps a first end and a second end of the laminated sheet;
the sheet clamping device and the stacking table perform relative circular motion so as to stack the stacked sheets clamped on the stacking table.
Optionally, the sheet clamping device includes a first clamping portion and a second clamping portion, and the first clamping portion and the second clamping portion are respectively used for clamping a first end and a second end of the stacked sheet.
Optionally, the sheet clamping device further includes a first guide rail and a second guide rail, both of which are vertically disposed, the first clamping portion is mounted on the first guide rail and configured to move up and down along the first guide rail, and the second clamping portion is mounted on the second guide rail and configured to move up and down along the second guide rail.
Optionally, the sheet clamping device further comprises a tension maintaining mechanism, and the tension maintaining mechanism is fixedly connected with the first clamping portion and the second clamping portion to ensure that the distance between the first clamping portion and the second clamping portion is fixed.
Optionally, the cell stacking apparatus further includes an auxiliary tension roller device, the auxiliary tension roller device is disposed between the sheet clamping device and the stacking table, and is configured to perform auxiliary tensioning on the stacked sheets clamped by the sheet clamping device and the diaphragm between the stacking tables.
Optionally, the cell lamination apparatus further includes a pressing plate configured to press the first end of the stacking table close to the membrane feeding device, and configured to be removable from the first end of the stacking table.
Optionally, the sheet clamping device performs circular arc motion with the first end of the stacking table as a circle center to stack the clamped stacked sheets on the stacking table; or the stacking table performs circular arc motion by taking the second end of the sheet clamping device as a circle center so as to bear and receive the stacked sheets clamped by the sheet clamping device on the stacking table;
wherein the first end of the stacking table is the end adjacent to the placement device and the second end of the sheet holding device is the end adjacent to the stacking table.
Optionally, the sheet clamping devices are two sets, and the two sets of sheet clamping devices alternately lay the stacked sheets on the stacking table.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the utility model, as claimed.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the utility model and together with the description, serve to explain the principles of the utility model.
Fig. 1 is a schematic diagram of a cell lamination apparatus provided in one embodiment of the present application;
fig. 2 is a schematic diagram of the cell lamination apparatus shown in fig. 1 when primary lamination sheets are implemented;
fig. 3 is a schematic diagram of a cell lamination apparatus provided in another embodiment of the present application;
fig. 4 is a schematic diagram of the cell lamination apparatus shown in fig. 3 when a primary lamination sheet is implemented;
fig. 5 is a schematic diagram of a cell lamination apparatus provided in another embodiment of the present application;
fig. 6 is a schematic diagram of the cell lamination apparatus shown in fig. 5 when primary lamination sheets are implemented;
fig. 7 is another schematic diagram of the cell lamination apparatus shown in fig. 1 when a primary lamination sheet is implemented;
fig. 8 is a flow chart of a cell lamination method provided in an embodiment of the present application.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the utility model, as detailed in the appended claims.
The application provides a battery core lamination equipment attaches negative pole piece and positive pole piece on the diaphragm in advance, forms the range upon range of lamellar body to stack the desktop, keep range upon range of lamellar body and stack the relative circular arc motion between the platform, in order to guarantee range upon range of lamellar body and stack the diaphragm between the platform and be in the state of tautness, improved lamination quality greatly, the following combines fig. 1, fig. 3, fig. 5 to exemplify the battery core lamination equipment that this application provided.
Fig. 1 is a schematic diagram of a cell lamination apparatus provided in an embodiment of the present application, which may include a separator feeding device, a negative plate feeding device, a positive plate feeding device, a sheet sticking device, a sheet clamping device 10, and a stacking table 20.
The membrane supply provides a membrane 30. In some embodiments of the present application, the membrane supply provides a continuous membrane to the stacking station 20.
The sheet pasting device is positioned between the diaphragm feeding device and the stacking table 20 and is used for symmetrically attaching the negative plates provided by the negative plate feeding device and the positive plates provided by the positive plate feeding device to the diaphragm 30 pulled out from the diaphragm feeding device to form a laminated sheet body 40.
Generally, the positive electrode sheet and the negative electrode sheet are the same size and are symmetrically attached to both sides of the separator 30 to form the laminated sheet body 40. That is, the projections of the positive electrode tab and the negative electrode tab symmetrically attached to both sides of the separator 30 on the separator 30 are the same.
The sheet holding device 10 holds the first end and the second end of the laminated sheet 40.
The sheet holding device 10 and the stacking table 20 perform relative circular motions to stack the held laminated sheet 40 on the stacking table.
The sheet holding device 10 provided by the present application may include a first holding portion 11 and a second holding portion 12, and the first holding portion 11 and the second holding portion 12 are used to hold a first end and a second end of the laminated sheet 40, respectively.
In one possible implementation, the laminated sheet 40 held by the sheet holding device 10 may maintain a horizontal angle or may be slightly inclined during the movement, and for the requirement of being inclined, as shown in fig. 3, the sheet holding device 10 may further include a first rail 13 and a second rail 14 both vertically disposed, the first holding portion 11 is mounted on the first rail 13 and configured to move up and down along the first rail 13, and the second holding portion 12 is mounted on the second rail 14 and configured to move up and down along the second rail 14.
Here, the stroke lengths of the first rail 13 and the second rail 14 may be the same, and both may be vertically disposed.
When the first clamping portion 11 and the second clamping portion 12 move along the first guide rail 13 and the second guide rail 14, the first clamping portion 11 and the second clamping portion 12 are different in height, so that the clamped laminated sheet body 40 forms an inclined angle, and damage to an electrode plate on the laminated sheet body 40, which may be caused when the laminated sheet body 40 performs circular arc motion with the stacking table as a circle center, is avoided.
Optionally, the sheet clamping device 10 may further include a tension maintaining mechanism 15, and the tension maintaining mechanism 15 is fixedly connected to the first clamping portion 11 and the second clamping portion 12 to ensure that the distance between the first clamping portion 11 and the second clamping portion 12 is fixed.
Through the tension maintaining mechanism 15, the distance between the first clamping part 11 and the second clamping part 12 can be fixed, and damage to the electrode plate caused by the change of the distance between the two clamping parts in the moving process is avoided.
In practical applications, as shown in fig. 5, in order to provide the cell lamination apparatus with an auxiliary tension roller device 50, the auxiliary tension roller device 50 is disposed between the sheet holding device 10 and the stacking station 20, and is configured to perform auxiliary tension on the membrane 30 between the laminated sheet 40 held by the sheet holding device 10 and the stacking station 20.
In practical use, the auxiliary tension roller device 50 moves along with the sheet gripper 10 or the stacking station 20 to always tension the diaphragm between the sheet gripper 10 and the stacking station 20. When the laminated sheet 40 held by the sheet holding device 10 is or is to be covered on the stacking table 20, the auxiliary tension roller device 50 is pulled out from above the stacking table 20.
In order to avoid the offset of the stacked lamination sheets 40 on the stacking station 20, the cell lamination apparatus provided by the present application may further include a pressing plate configured to press the first end of the stacking station 20 close to the feeding device of the separator 30 and configured to be drawn away from the first end of the stacking station 20.
The sheet holding device 10 and the stacking table 20 can move in the arc relative to each other at least in two ways:
the first mode is as follows: the sheet holding device 10 performs an arc motion around the first end of the stacking table 20 to stack the held stacked sheets 40 on the stacking table. The first end of the stacking station 20 is here the end close to the chip mounting device. In this manner, the stacking table 20 is fixed and does not move, and the sheet holding device 10 performs an arc motion with the first end of the stacking table 20 as a center, as shown in fig. 2, 4, and 6.
In the second way, the stacking table 20 performs an arc motion with the second end of the sheet holding device 10 as a center, so as to receive the stacked sheets 40 held by the sheet holding device 10 on the stacking table 20. The second end of the sheet gripper 10 is the end close to the stacking table 20. In this manner, the sheet holding device is fixed and does not move, and the stacking table 20 performs an arc motion around the second end of the sheet holding device 10 as a center, as shown in fig. 7.
In order to increase the efficiency of the lamination, the sheet grippers 10 are provided in two groups, and the two groups of sheet grippers 10 alternately lay the laminated sheets 40 onto the stacking table 20.
To sum up, the electric core lamination equipment that this application provided carries out relative circular motion through with lamellar body clamping device and stacking the platform for the range upon range of lamellar body of the centre gripping that lamellar body clamping device held and the diaphragm that does not form range upon range of lamellar body are in the state of tautness, have avoided the condition of fold to appear among the diaphragm folding process, have improved electric core lamination quality.
Fig. 8 is a flowchart of a cell lamination method provided in an embodiment of the present application, where the cell lamination method provided in the present application may include the following steps:
step 801, symmetrically attaching the negative plate and the positive plate to the pulled diaphragm to form an ith laminated sheet body;
and symmetrically attaching a negative plate and a positive plate to the pulled diaphragm at intervals of a preset length, wherein the preset length is greater than that of the negative plate.
Step 802, clamping a first end and a second end of the ith laminated sheet by using a sheet clamping device;
generally, the ith laminated sheet held by the sheet holding device is in a horizontal state at the initial position.
And 803, controlling the sheet clamping device and the stacking table to perform relative circular motion so as to stack the clamped ith laminated sheet on the stacking table.
In step 803, the first way is to control the sheet clamping device to perform an arc motion with the first end of the stacking platform as a circle center, so as to stack the clamped ith stacked sheet on the stacking platform.
In the second mode, the stacking table is controlled to perform circular arc motion by taking the second end of the sheet clamping device as a circle center so as to bear and receive the ith stacked sheet clamped by the sheet clamping device on the stacking table.
The first end of the stacking station is referred to herein as the end adjacent the sheet attachment device and the second end of the sheet holding device is the end adjacent the stacking station.
The sheet gripper can be withdrawn from the gripped ith laminated sheet after step 803; and controlling the sheet clamping device to move to the clamping position and continuously clamping the first end and the second end of the (i + 1) th laminated sheet.
To avoid the offset of the sheets on the stacking table, a pressing plate may also be used to press the stacking table near the first end of the sheet placement device to press the first end of the sheets already stacked on the stacking table before step 803; after step 803, the platen is extracted from the stacking station.
Obviously, if the cell lamination apparatus shown in fig. 5 is used, after step 803, the auxiliary tension roller device 50 needs to be pulled away from the upper side of the stacking table 20 and reset.
In summary, according to the cell lamination method provided by the application, the sheet clamping device and the stacking table are moved in a relative arc manner, so that the stacked sheets clamped by the sheet clamping device and the diaphragms which do not form the stacked sheets are in a tight state, the condition that wrinkles appear in the diaphragm folding process is avoided, and the cell lamination quality is improved.
Other embodiments of the utility model will be apparent to those skilled in the art from consideration of the specification and practice of the utility model disclosed herein. This application is intended to cover any variations, uses, or adaptations of the utility model following, in general, the principles of the utility model and including such departures from the present disclosure as come within known or customary practice within the art to which the utility model pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the utility model being indicated by the following claims.
It will be understood that the utility model is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the utility model is limited only by the appended claims.

Claims (8)

1. The utility model provides a battery core lamination equipment, its characterized in that, battery core lamination equipment includes diaphragm feedway, negative pole piece feedway, positive plate feedway, paster device, lamellar body clamping device and stacks the platform, wherein:
the membrane feeding device provides a membrane;
the surface mounting device is positioned between the diaphragm feeding device and the stacking table and is used for symmetrically attaching the negative plates provided by the negative plate feeding device and the positive plates provided by the positive plate feeding device to the diaphragms drawn out from the diaphragm feeding device to form laminated sheets;
the sheet clamping device clamps a first end and a second end of the laminated sheet;
the sheet clamping device and the stacking table perform relative circular motion so as to stack the stacked sheets clamped on the stacking table.
2. The cell lamination apparatus of claim 1, wherein the sheet clamping device comprises a first clamping portion and a second clamping portion, and the first clamping portion and the second clamping portion are configured to clamp a first end and a second end of the laminated sheet, respectively.
3. The cell lamination apparatus of claim 2, wherein the blade clamping device further comprises a first rail and a second rail that are both vertically disposed, the first clamping portion is mounted on the first rail and configured to move up and down along the first rail, and the second clamping portion is mounted on the second rail and configured to move up and down along the second rail.
4. The cell lamination apparatus according to claim 3, wherein the sheet clamping device further includes a tension maintaining mechanism, and the tension maintaining mechanism is fixedly connected to the first clamping portion and the second clamping portion to ensure that a distance between the first clamping portion and the second clamping portion is fixed.
5. The cell lamination apparatus of claim 1, further comprising an auxiliary tension roller device disposed between the sheet clamping device and the stacking station and configured to assist in tensioning a separator between a stacked sheet clamped by the sheet clamping device and the stacking station.
6. The cell lamination apparatus of claim 1, further comprising a pressing plate configured to press against the stacking station near the first end of the separator feeder and configured to be removable from the first end of the stacking station.
7. The cell lamination apparatus of claim 1,
the sheet clamping device performs circular motion by taking the first end of the stacking table as a circle center so as to stack the clamped stacked sheets on the stacking table; or the stacking table performs circular arc motion by taking the second end of the sheet clamping device as a circle center so as to bear and receive the stacked sheets clamped by the sheet clamping device on the stacking table;
wherein the first end of the stacking table is the end adjacent to the placement device and the second end of the sheet holding device is the end adjacent to the stacking table.
8. The cell lamination apparatus of claim 1, wherein the sheet clamping devices are two sets, and the two sets of sheet clamping devices alternately lay the laminated sheets towards the stacking station.
CN202122384225.XU 2021-09-29 2021-09-29 Battery core lamination equipment Active CN216488187U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202122384225.XU CN216488187U (en) 2021-09-29 2021-09-29 Battery core lamination equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202122384225.XU CN216488187U (en) 2021-09-29 2021-09-29 Battery core lamination equipment

Publications (1)

Publication Number Publication Date
CN216488187U true CN216488187U (en) 2022-05-10

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202122384225.XU Active CN216488187U (en) 2021-09-29 2021-09-29 Battery core lamination equipment

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Country Link
CN (1) CN216488187U (en)

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