Lithium ion soft package cylindrical battery parallel formation device

Abstract

The utility model discloses a lithium ion soft package cylindrical battery parallel formation device, and belongs to the technical field of battery formation. The device comprises a bottom plate, a positive electrode positioning plate, a negative electrode positioning plate, a positive electrode conductive block and a negative electrode conductive block, the positive electrode positioning plate and the negative electrode positioning plate are arranged on the bottom plate in parallel at intervals, and the positive electrode positioning plate is provided with a plurality of battery positive electrode placing positions; the negative electrode positioning plate is provided with a plurality of battery negative electrode placing positions which are matched with the battery positive electrode placing positions one by one, positive electrode lug clamps used for clamping positive electrode lugs of batteries are arranged in the battery positive electrode placing positions, and negative electrode lug clamps used for clamping negative electrode lugs of the batteries are arranged in the battery negative electrode placing positions; the lithium ion cylindrical battery parallel formation device has the beneficial effects that the parallel formation of the lithium ion cylindrical battery can be realized, the formation efficiency is improved, the occupied area is small, and the voltage consistency of the formed battery is good.

Description

Technical Field

[0001] This application belongs to the technical field of batteries, and particularly relates to a parallel formation device for lithium-ion soft-pack cylindrical batteries. Background Art

[0002] After the lithium-ion soft-pack cylindrical battery cells are filled with electrolyte, they need to be activated by a certain charge-discharge method to activate the positive and negative electrode materials inside the cells, improve the charge-discharge performance, cycle performance, storage performance and other comprehensive performances of the cells. This process is called formation. Only after the cells are formed can their true performance be reflected.

[0003] The existing formation devices for cylindrical batteries and flat batteries (with tab ears protruding from both ends of the main body) can only form one battery at a time, and wires need to be led out to contact the positive and negative electrodes of the cells. When forming multiple batteries simultaneously, multiple wires need to be connected to achieve the parallel connection of the batteries. Due to the excessive number of wires, the structure of the device is inevitably complicated, the operation difficulty is increased, the production efficiency and production quality are affected, and various safety hazards will occur. Summary of the Utility Model

[0004] The purpose of the embodiments of this application is to provide a parallel formation device for lithium-ion soft-pack cylindrical batteries. By providing a positive tab clamp and a negative tab clamp at one end of the battery placement position, when in use, only by respectively clamping the positive tab and the negative tab of the battery, the formation connection of the battery can be completed, which is convenient, fast and easy to operate, thereby solving at least one technical problem involved in the background art.

[0005] To solve the above technical problems, this application is implemented as follows:

[0006] The embodiments of this application provide a parallel formation device for lithium-ion soft-pack cylindrical batteries, including a bottom plate, a positive electrode positioning plate, a negative electrode positioning plate, a positive electrode conductive block and a negative electrode conductive block. The positive electrode positioning plate and the negative electrode positioning plate are arranged in parallel at intervals on the bottom plate. The positive electrode positioning plate is provided with a plurality of battery positive tab placement positions, and the negative electrode positioning plate is provided with a plurality of battery negative tab placement positions that are paired with the battery positive tab placement positions one by one. The battery positive tab placement positions are provided with positive tab clamps for clamping the positive tabs of the batteries, and the battery negative tab placement positions are provided with negative tab clamps for clamping the negative tabs of the batteries. The positive electrode conductive block and the negative electrode conductive block are arranged on the bottom plate and are respectively electrically connected to the positive tab clamps and the negative tab clamps.

[0007] Optionally, a positive electrode steel bar penetrating through a plurality of the battery positive tab placement positions is arranged in the positive electrode positioning plate, and a positive electrode conductive copper bar that cooperates with the positive electrode steel bar to form the positive tab clamp is arranged in each battery positive tab placement position.

[0008] Optionally, a negative electrode steel bar penetrating through a plurality of the battery negative electrode placement positions is arranged inside the negative electrode positioning plate, and a negative electrode conductive copper bar that cooperates with the negative electrode steel bar to form the negative electrode tab clamp is arranged inside each of the battery negative electrode placement positions.

[0009] Optionally, the positive electrode steel bar is electrically connected to the positive electrode conductive block through a wire.

[0010] Optionally, the negative electrode steel bar is electrically connected to the negative electrode conductive block through a wire.

[0011] Optionally, the positive electrode conductive block is a positive electrode conductive copper block, and the negative electrode conductive block is a negative electrode conductive copper block.

[0012] Optionally, the opening direction of the positive electrode tab clamp at each battery positive electrode placement position is parallel to the opening direction of the negative electrode tab clamp at the battery negative electrode placement position paired with the battery positive electrode placement position.

[0013] Optionally, it further includes a positive electrode pin shaft connected to the positive electrode steel bar and used to control the positive electrode steel bar to have a clamping tendency inside the battery positive electrode placement position.

[0014] Optionally, it further includes a negative electrode pin shaft connected to the negative electrode steel bar and used to control the negative electrode steel bar to have a clamping tendency inside the battery negative electrode placement position.

[0015] Optionally, the bottom plate is a PCB board.

[0016] The beneficial effects of the embodiments of the present application are as follows:

[0017] 1. Using a PCB board to replace traditional wires to achieve parallel connection of batteries greatly simplifies the structure of the formation equipment, reduces the operation difficulty, and is conducive to improving production efficiency and production quality;

[0018] 2. By arranging a positive electrode tab clamp and a negative electrode tab clamp at one end of the battery placement position, when in use, only the positive electrode tab and the negative electrode tab of the battery need to be respectively clamped, and the formation connection of the battery can be completed, which is convenient, fast, and easy to operate;

[0019] 3. By making the opening directions of all the positive electrode tab clamps and negative electrode tab clamps the same, the placement directions of the batteries during battery formation are completely the same, reducing the error risk of the staff and improving work efficiency;

[0020] 4. It can achieve parallel formation of lithium-ion cylindrical batteries, improve formation efficiency, have a small floor area, and have good voltage consistency of the batteries after formation. Description of the Drawings

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings, where:

[0022] Figure 1 It is a schematic diagram of the back structure of the parallel formation device for lithium-ion soft-pack cylindrical batteries provided by the embodiment of the present application;

[0023] Figure 2 It is one of the schematic three-dimensional structures of the parallel formation device for lithium-ion soft-pack cylindrical batteries provided by the embodiment of the present application;

[0024] Figure 3 It is another schematic three-dimensional structure of the parallel formation device for lithium-ion soft-pack cylindrical batteries provided by the embodiment of the present application;

[0025] Figure 4 It is the front view of the parallel formation device for lithium-ion soft-pack cylindrical batteries provided by the embodiment of the present application;

[0026] Figure 5 It is the rear view of the parallel formation device for lithium-ion soft-pack cylindrical batteries provided by the embodiment of the present application. Detailed implementation manners

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present application in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are some, but not all, of the embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present application.

[0028] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, rather than to describe a specific order or sequence. It should be understood that such used data can be interchanged under appropriate circumstances so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first", "second", etc. are generally of the same category and do not limit the number of objects. For example, the first object can be one or multiple. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / " generally represents an "or" relationship between the associated objects before and after.

[0029] Please refer to Figures 1 to 5As shown in the figure, an embodiment of the present application provides a parallel formation device for lithium-ion soft-pack cylindrical batteries, which includes a bottom plate 1, a positive electrode positioning plate 2, a negative electrode positioning plate 3, a positive electrode conductive block 4, and a negative electrode conductive block 5. The positive electrode positioning plate 2 and the negative electrode positioning plate 3 are arranged in parallel at intervals on the bottom plate 1.

[0030] The positive electrode positioning plate 2 is provided with a plurality of battery positive electrode placement positions, and the negative electrode positioning plate 3 is provided with a plurality of battery negative electrode placement positions that are paired with the battery positive electrode placement positions one by one.

[0031] The battery positive electrode placement position is provided with a positive electrode tab clip for clamping the positive electrode tab of the battery. A positive electrode steel bar 21 runs through a plurality of the battery positive electrode placement positions in the positive electrode positioning plate 2, and each battery positive electrode placement position is provided with a positive electrode conductive copper bar 22 that cooperates with the positive electrode steel bar 21 to form the positive electrode tab clip.

[0032] By arranging a positive electrode tab clip and a negative electrode tab clip in the battery placement position, when in use, only the positive electrode tab and the negative electrode tab of the battery need to be clamped respectively, and the formation connection of the battery can be completed, which is convenient, fast, and easy to operate.

[0033] The battery negative electrode placement position is provided with a negative electrode tab clip for clamping the negative electrode tab of the battery. A negative electrode steel bar 31 runs through a plurality of the battery negative electrode placement positions in the negative electrode positioning plate 3, and each battery negative electrode placement position is provided with a negative electrode conductive copper bar 32 that cooperates with the negative electrode steel bar 31 to form the negative electrode tab clip.

[0034] The positive electrode conductive block 4 and the negative electrode conductive block 5 are arranged on the bottom plate 1 and are electrically connected to the positive electrode tab clip and the negative electrode tab clip respectively.

[0035] Specifically, the positive electrode steel bar 21 is electrically connected to the positive electrode conductive block 4 through a wire. The negative electrode steel bar 31 is electrically connected to the negative electrode conductive block 4 through a wire.

[0036] In a specific embodiment, the positive electrode conductive block 4 is a positive electrode conductive copper block, and the negative electrode conductive block 5 is a negative electrode conductive copper block.

[0037] In order to make the placement directions of the batteries completely the same during battery formation, reduce the error risk of the staff, and improve work efficiency, the opening directions of the positive electrode tab clips in each battery positive electrode placement position are parallel to the opening directions of the negative electrode tab clips in the battery negative electrode placement positions paired with the battery positive electrode placement positions.

[0038] The device further includes a positive electrode pin shaft 6 connected to the positive electrode steel bar 21 and used to control the positive electrode steel bar 21 to have a clamping tendency within the battery positive electrode placement position, and a negative electrode pin shaft 7 connected to the negative electrode steel bar and used to control the negative electrode steel bar to have a clamping tendency within the battery negative electrode placement position.

[0039] In a specific embodiment, the bottom plate 1 is a PCB board. Using a pcb board to replace traditional wires to achieve parallel connection of batteries greatly simplifies the structure of the formation equipment, reduces the operation difficulty, and is beneficial to improving production efficiency and production quality.

[0040] It should be noted that in this article, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without more limitations, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including that element.

[0041] In addition, it should be pointed out that the scope of the methods and systems in the embodiments of the present application is not limited to performing functions in the order shown or discussed. It may also include performing functions in a substantially simultaneous manner or in a reverse order according to the functions involved. For example, the described methods may be performed in an order different from that described, and various steps may be added, omitted, or combined. Additionally, the features described with reference to certain examples may be combined in other examples.

[0042] The embodiments of the present application have been described above in conjunction with the accompanying drawings. However, the present application is not limited to the above specific embodiments. The above specific embodiments are merely illustrative and not restrictive. Those of ordinary skill in the art, under the inspiration of the present application and without departing from the spirit and scope protected by the claims of the present application, can still make many forms, all of which fall within the protection scope of the present application.

Claims

1. A parallel formation device for lithium-ion soft-pack cylindrical batteries, characterized in that It includes a bottom plate, a positive electrode positioning plate, a negative electrode positioning plate, a positive electrode conductive block, and a negative electrode conductive block. The positive electrode positioning plate and the negative electrode positioning plate are arranged on the bottom plate in parallel at intervals. The positive electrode positioning plate is provided with a plurality of battery positive electrode placement positions, and the negative electrode positioning plate is provided with a plurality of battery negative electrode placement positions that are paired with the battery positive electrode placement positions one by one. The battery positive electrode placement position is internally provided with a positive electrode ear clip for clamping the positive electrode ear of the battery, and the battery negative electrode placement position is internally provided with a negative electrode ear clip for clamping the negative electrode ear of the battery. The positive electrode conductive block and the negative electrode conductive block are arranged on the bottom plate and are respectively electrically connected to the positive electrode ear clip and the negative electrode ear clip.

2. The parallel formation device for lithium-ion soft-pack cylindrical batteries according to claim 1, characterized in that, A positive electrode steel bar penetrating through a plurality of the battery positive electrode placement positions is arranged in the positive electrode positioning plate, and a positive electrode conductive copper bar that cooperates with the positive electrode steel bar to form the positive electrode ear clip is arranged in each of the battery positive electrode placement positions.

3. The parallel formation device for lithium-ion soft-pack cylindrical batteries according to claim 1 or 2, characterized in that, A negative electrode steel bar penetrating through a plurality of the battery negative electrode placement positions is arranged in the negative electrode positioning plate, and a negative electrode conductive copper bar that cooperates with the negative electrode steel bar to form the negative electrode ear clip is arranged in each of the battery negative electrode placement positions.

4. The parallel formation device for lithium-ion soft-pack cylindrical batteries according to claim 2, characterized in that, The positive electrode steel bar is electrically connected to the positive electrode conductive block through a wire.

5. The parallel formation device for lithium-ion soft-pack cylindrical batteries according to claim 3, characterized in that, The negative electrode steel bar is electrically connected to the negative electrode conductive block through a wire.

6. The parallel formation device for lithium-ion soft-pack cylindrical batteries according to claim 1, characterized in that, The positive electrode conductive block is a positive electrode conductive copper block, and the negative electrode conductive block is a negative electrode conductive copper block.

7. The parallel formation device for lithium-ion soft-pack cylindrical batteries according to claim 1, characterized in that, The opening direction of the positive electrode ear clip in each of the battery positive electrode placement positions is parallel to the opening direction of the negative electrode ear clip in the battery negative electrode placement position paired with the battery positive electrode placement position.

8. The parallel formation device for lithium-ion soft-pack cylindrical batteries according to claim 1, characterized in that It further includes a positive electrode pin shaft connected to the positive electrode steel bar and used to control the positive electrode steel bar to have a clamping tendency in the battery positive electrode placement position.

9. The parallel formation device for lithium-ion soft-pack cylindrical batteries according to claim 1 or 8, characterized in that, It further includes a negative electrode pin shaft connected to the negative electrode steel bar and used to control the negative electrode steel bar to have a clamping tendency in the battery negative electrode placement position.

10. The parallel formation device for lithium-ion soft-pack cylindrical batteries according to claim 1, wherein, The bottom plate is a PCB board.

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