Battery monomer separation device

Abstract

The utility model relates to the technical field of lithium battery production and recovery, and discloses a battery monomer separation device, which comprises a separation cutting block, a first insert and a second insert, the hardness of the first insert is larger than that of the separation cutting block, the hardness of the second insert is larger than that of the separation cutting block, and the separation cutting block is provided with a separation end and a handheld end which are oppositely arranged along a first direction; the first insert, the separation end and the second insert are sequentially connected along a second direction and are limited to form a separation structure for being inserted into a gap between adjacent single batteries, and the separation cutting block is made of an insulating material; wherein the first direction is perpendicular to the second direction. The utility model has battery monomer separation capability and insulation characteristic, and can solve the problems of low production efficiency and short service life caused by battery short circuit possibly occurring during operation and poor structural strength.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery production and recycling, in particular to a battery monomer separation device. Background Art

[0002] When disassembling lithium battery packs or modules, the battery glue between the battery cells is very strong, and direct separation may damage the battery cells, or even cause safety hazards such as short circuits and leakage. Therefore, appropriate separation measures need to be taken during the production operation, and a "separation device" needs to be used to knock and separate the battery cells to ensure operation safety and reduce damage to the battery cells.

[0003] However, the disassembly of battery packs or modules is a safety risk operation, so the "separation device" must have an insulating effect to prevent electric shock accidents caused by current leakage during the knocking process. At the same time, due to the repetitiveness and frequency of the disassembly operation, the separation device must have good durability to ensure long-term use without damage, thereby ensuring work efficiency and safety. Utility Model Content

[0004] The purpose of the utility model is to design a battery monomer separation device with battery monomer separation capability and insulation characteristics to solve the problems of battery short circuit that may occur during operation, and low production efficiency and short life due to poor structural strength.

[0005] In order to achieve the above-mentioned purpose, the utility model provides a battery monomer separation device, comprising: a separation block, a first insert block with a harderness greater than that of the separation block, and a second insert block with a harderness greater than that of the separation block, wherein the separation block has a separation end and a handheld end arranged opposite to each other along a first direction; the first insert block, the separation end, and the second insert block are sequentially connected along a second direction and define a separation structure for inserting into gaps between adjacent battery monomers, and the separation block is made of an insulating material; wherein the first direction and the second direction are perpendicular to each other.

[0006] Further, the separation structure comprises a first surface and a second surface arranged opposite to each other along a third direction, the first surface and the second surface are connected to form an end of the separation structure, and an angle A formed by the first surface and the second surface in the third direction is an acute angle;

[0007] The third direction, the first direction and the second direction are perpendicular to each other.

[0008] Furthermore, the angle A is between 30° and 90°.

[0009] Furthermore, the separation structure also includes a third surface and a fourth surface arranged relatively to each other along the third direction, the third surface is connected to a side of the first surface away from the end of the separation structure, the fourth surface is connected to a side of the second surface away from the end of the separation structure, and an extension surface of the third surface and an extension surface of the fourth surface form an angle B in the third direction, wherein B°<A°.

[0010] Furthermore, the angle B is between 8° and 18°.

[0011] Further, the first insert has a first mounting groove at one end away from the end of the separation structure, the separation block is provided with a first mounting portion adapted to the first mounting groove, the first mounting portion is embedded in the first mounting groove to connect the first insert and the separation block, and / or

[0012] The second insert has a second mounting groove at one end away from the separation structure, the separation block is provided with a second mounting portion adapted to the second mounting groove, and the second mounting portion is embedded in the second mounting groove to connect the second insert and the separation block.

[0013] Furthermore, it also includes bolts, and the first mounting groove and the first mounting portion are connected by the bolts, and / or,

[0014] The second mounting groove and the second mounting portion are connected via the bolt.

[0015] Further, the first insert and the separated cut block are connected by a pin, and / or,

[0016] The second insert is connected to the separated cut block via a pin.

[0017] Furthermore, two sides of the separated block in the second direction are flush with the first insert block and the second insert block respectively.

[0018] Furthermore, the material of the separation block is polyoxymethylene (POM), and the materials of the first insert and the second insert are both 40Cr steel.

[0019] Compared with the prior art, the battery monomer separation device of the present utility model has the following beneficial effects:

[0020] The battery cell separation device of the embodiment of the utility model solves the problem that the existing separation devices made of insulating materials are easily deformed and damaged during use, which affects the working efficiency; the battery cell separation device of the utility model is provided with inserts with greater hardness on both sides of its separation end; the inserts and the separation blocks together form a separation structure, and when separating the battery cells, the inserts can further assist the separation blocks to be inserted into the gaps between adjacent battery cells, and are not easily damaged; because the separation blocks themselves have insulating properties, the utility model not only improves the durability but also ensures the operational safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is an axonometric diagram of a battery cell separation device according to an embodiment of the utility model;

[0022] Figure 2 This is a front view of a battery monomer separation device according to an embodiment of the utility model;

[0023] Figure 3 is a side view of a battery monomer separation device according to an embodiment of the utility model;

[0024] Figure 4 yes Figure 3 The enlarged schematic diagram of the center C;

[0025] Figure 5 It is an axonometric diagram of the exploded cut-outs in the battery monomer separation device of the embodiment of the utility model;

[0026] Figure 6 It is a cross-sectional view of the first insert in the battery monomer separation device of the embodiment of the utility model;

[0027] Figure 7 It is a cross-sectional view of the second insert in the battery monomer separation device according to the embodiment of the utility model.

[0028] In the figure, 1, separation block; 11, separation end; 12, handheld end; 13, first mounting portion; 14, second mounting portion; 2, first insert; 21, first mounting groove; 3, second insert; 31, second mounting groove; 4, separation structure; 41, first surface; 42, second surface; 43, third surface; 44, fourth surface; 5, bolt; 6, pin;

[0029] x, first direction; y, second direction; z, third direction. DETAILED DESCRIPTION

[0030] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0031] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like used in the present invention to indicate the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0032] In the description of the present invention, it should be understood that the terms "connected", "connected", "fixed" and the like used in the present invention should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, or a welding connection; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] The present invention uses the terms "first", "second", etc. to describe various information, but these information should not be limited to these terms, which are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present invention, the "first" information may also be referred to as the "second" information, and similarly, the "second" information may also be referred to as the "first" information.

[0034] In the description of the present invention, the first direction, the second direction and the third direction are perpendicular or approximately perpendicular to each other.

[0035] like Figure 1 , Figure 2 As shown, a battery cell separation device of a preferred embodiment of the utility model comprises: a separation block 1, a first insert block 2 with a harderness greater than that of the separation block 1, and a second insert block 3 with a harderness greater than that of the separation block 1. The separation block 1 has a separation end 11 and a handheld end 12 arranged opposite to each other along a first direction x, wherein the separation end 11 is used to insert into the gap between battery cells, and the handheld end 12 is convenient for operators to hold. The first insert block 2, the separation end 11, and the second insert block 3 are sequentially connected along a second direction y and define a separation structure 4 for inserting into the gaps between adjacent battery cells. The material used for the separation block 1 is an insulating material. The hardness of the first insert block 2 and the second insert block 3 are both greater than that of the separation block 1, and are used to enhance the strength and durability of the separation structure 4. They are connected to the separation block 1 to form a separation structure 4 that can be inserted into the gaps between battery cells. The separation block 1 is made of insulating material to ensure the safety of the operator.

[0036] like Figure 3 and Figure 4 As shown, in some improved solutions of the present application, the separation structure 4 includes a first surface 41 and a second surface 42 arranged opposite to each other along a third direction z, the first surface 41 and the second surface 42 are connected to form an end of the separation structure 4, and the angle A formed by the first surface 41 and the second surface 42 in the third direction z is an acute angle. The acute angle design makes it easier for the separation structure 4 to be inserted into the gap between the battery cells, reduces the resistance of the operation, and thus improves the working efficiency.

[0037] In some improved solutions of the present application, the angle A is 30° to 90°. Limiting the range of the angle A to between 30° and 90° makes the separation structure 4 more flexible, adaptable to the size and shape of different battery cell gaps, improves the separation capacity of the device, improves the durability of the separation block 1, and prolongs the service life of the separation structure 4.

[0038] In some improved solutions of the present application, the separation structure 4 further includes a third surface 43 and a fourth surface 44 which are arranged relatively along the third direction z, the third surface 43 is connected to the side of the first surface 41 away from the end of the separation structure 4, the fourth surface 44 is connected to the side of the second surface 42 away from the end of the separation structure 4, and the extension surface of the third surface 43 and the extension surface of the fourth surface 44 form an angle B in the third direction z, wherein B°<A°. The arrangement of the third surface 43 and the fourth surface 44 makes the separation structure 4 more flexible when being operated, and can provide different insertion angles and directions, so as to meet the requirements of different battery cell gaps; at the same time, the third surface 43 and the fourth surface 44 can also form a better connection with the handheld end 12, so as to avoid the overall structure of the separation device being too large.

[0039] In some improved solutions of the present application, the angle B is 8° to 18°. The angle B is smaller in the range of 8° to 18°, so that the separation structure 4 is more precise in operation and can provide sufficient insertion force, while maintaining good grip stability, ensuring that the separation device can achieve optimal operating capacity.

[0040] The angle A matches the angle B, which effectively solves the problem of battery monomers being broken by being knocked due to the sharp ends of the separation structure 4, as well as the problem of the ends being easily passivated and the separation blocks 1 being easily broken. After applying this optimized design, the operating effect of the separation device is significantly improved.

[0041] like Figure 5 , Figure 6 and Figure 7As shown, in some improved solutions of the present application, the first insert 2 has a first mounting groove 21 at one end away from the separation structure 4, and the separation block 1 is provided with a first mounting portion 13 that matches the first mounting groove 21, and the first mounting portion 13 is embedded in the first mounting groove 21 to connect the first insert 2 and the separation block 1. The second insert 3 has a second mounting groove 31 at one end away from the separation structure 4, and the separation block 1 is provided with a second mounting portion 14 that matches the second mounting groove 31, and the second mounting portion 14 is embedded in the second mounting groove 31 to connect the second insert 3 and the separation block 1.

[0042] The connection method in which the first insert 2 and the second insert 3 are embedded in the separation block 1 enhances the structural stability of the separation structure 4 and even the entire separation device, reducing the risk of separation of the separation block 1 from the first insert 2 and the second insert 3 due to vibration or impact.

[0043] In some improved schemes of the present application, bolts 5 are further included, and the first mounting groove 21 is connected to the first mounting portion 13 by bolts 5, and / or the second mounting groove 31 is connected to the second mounting portion 14 by bolts 5. Specifically, each bolt 5 connects the first mounting groove 21 to the first mounting portion 13, and the second mounting groove 31 to the second mounting portion 14 along the third direction z, so that the connection between the separation block 1 and the first insert 2 and the second insert 3 is more firm, has a higher connection strength, and further reduces the loosening or falling off of the connection caused by vibration or impact. The design of the bolt 5 connection can also make the installation and disassembly of the separation block 1 and the first insert 2 and the second insert 3 more convenient, and the operator can easily tighten or loosen the bolt 5 to quickly complete the replacement of the first insert 2 and the second insert 3.

[0044] In some improved solutions of the present application, the first insert 2 is connected to the separation block 1 by a pin 6, and / or the second insert 3 is connected to the separation block 1 by a pin 6. Specifically, the pin 6 extends along the second direction y and is penetrated at the separation structure 4. The separation block and the first insert 2 and the second insert 3 are connected by the pin 6 in an interference connection, so that the separation structure 4 maintains consistency as a whole, which helps to improve the durability and safety of the separation structure 4.

[0045] In some improved schemes of the present application, the separation block 1 is flush with the first insert 2 and the second insert 3 on both sides in the second direction y, so that the entire separation device is more symmetrical in structure, allowing the operator to control the separation structure 4 more consistently during operation, thereby improving the stability of operation; at the same time, it also makes the overall appearance of the separation device smoother.

[0046] In some improved schemes of the present application, the material of the separation block 1 is polyoxymethylene (POM), and the materials of the first insert 2 and the second insert 3 are both 40Cr steel. Polyoxymethylene board, that is, POM board, also commonly known as Saigang board, is a thermoplastic engineering plastic with high melting point and high crystallinity. It has insulating properties and also has excellent hardness and machinability. After the POM board is made into the separation block 1, its insulating performance helps to improve the safety of operation and prevent the risk of electrode short circuit during operation. 40Cr is the standard steel grade of China GB. 40Cr steel is a high-strength and high-wear-resistant alloy steel. The first insert 2 and the second insert 3 use 40Cr steel material, specifically heat-treatable 40Cr, which can provide sufficient hardness and durability, and reduce the wear and damage of the separation device during operation.

[0047] The operation method of the utility model:

[0048] 1. When disassembling a battery pack or module, the operator holds the battery cell separation device in one hand to position the end of the separation structure 4 of the battery cell separation device in the gap between adjacent battery cells, and holds a knocking tool in the other hand to knock the battery cell separation device. The first insert 2 or the second insert 3 of the battery cell separation device cooperates with the separation block 1 to guide the separation block 1 into the gap between the two battery cells, thereby separating the two battery cells.

[0049] 2. Continue to repeat the above operation until the battery cells of the battery pack or module are separated.

[0050] In summary, the present invention provides a battery cell separation device, which has the following advantages:

[0051] 1. The separation block 1 has insulating properties and can prevent electrode short circuit;

[0052] 2. The separation structure 4 of the separation device is specially designed for inserting into the gap between adjacent battery cells. Its structural angle has been carefully optimized to ensure the stability of quality and the consistency of production operations, thereby improving production efficiency;

[0053] 3. The first insert 2, the second insert 3 and the separation block 1 cooperate to improve the structural strength, are not easy to deform and damage, and are more durable, greatly extend the service life and reduce the scrapping cost.

[0054] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principle of the present invention. These improvements and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. A battery cell separation device, characterized in that: include: A separation block (1), a first insert block (2) having a harderness than the separation block (1), and a second insert block (3) having a harderness than the separation block (1); the separation block (1) has a separation end (11) and a handheld end (12) arranged opposite to each other along a first direction (x); the first insert block (2), the separation end (11), and the second insert block (3) are sequentially connected along a second direction (y) to define a separation structure (4) for inserting into gaps between adjacent battery cells; the separation block (1) is made of an insulating material; wherein the first direction (x) and the second direction (y) are perpendicular to each other.

2. The battery cell separation device according to claim 1, characterized in that: The separation structure (4) comprises a first surface (41) and a second surface (42) arranged opposite to each other along a third direction (z); the first surface (41) and the second surface (42) are connected to form an end of the separation structure (4); and an angle A formed by the first surface (41) and the second surface (42) in the third direction (z) is an acute angle; The third direction (z), the first direction (x) and the second direction (y) are perpendicular to each other.

3. The battery cell separation device according to claim 2, characterized in that: The angle A is between 30° and 90°.

4. The battery cell separation device according to claim 2, characterized in that: The separation structure (4) further comprises a third surface (43) and a fourth surface (44) arranged opposite to each other along the third direction (z); the third surface (43) is connected to a side of the first surface (41) away from an end of the separation structure (4); the fourth surface (44) is connected to a side of the second surface (42) away from an end of the separation structure (4); an extended surface of the third surface (43) and an extended surface of the fourth surface (44) form an angle B in the third direction (z), wherein B°<A°.

5. The battery monomer separation device according to claim 4, characterized in that: The angle B is between 8° and 18°.

6. The battery cell separation device according to claim 1, characterized in that: The first insert (2) has a first mounting groove (21) at one end away from the separation structure (4), the separation block (1) is provided with a first mounting portion (13) adapted to the first mounting groove (21), the first mounting portion (13) is embedded in the first mounting groove (21) to connect the first insert (2) and the separation block (1), and / or, A second mounting groove (31) is formed at one end of the second insert (3) away from the separation structure (4); the separation block (1) is provided with a second mounting portion (14) adapted to the second mounting groove (31); the second mounting portion (14) is embedded in the second mounting groove (31) to connect the second insert (3) and the separation block (1).

7. The battery cell separation device according to claim 6, characterized in that: It also includes a bolt (5), the first mounting groove (21) and the first mounting portion (13) are connected by the bolt (5), and / or, The second mounting groove (31) and the second mounting portion (14) are connected via the bolt (5).

8. The battery monomer separation device according to claim 6, characterized in that: The first insert (2) and the separation block (1) are connected via a pin (6), and / or, The second insert (3) is connected to the separation block (1) via a pin (6).

9. The battery monomer separation device according to claim 1, characterized in that: The two sides of the separation block (1) in the second direction (y) are respectively flush with the first insert block (2) and the second insert block (3).

10. The battery monomer separation device according to any one of claims 1 to 9, characterized in that: The material of the separation block (1) is polyoxymethylene (POM), and the material of the first insert (2) and the second insert (3) are both 40Cr steel.

Images