Battery pole piece diaphragm separation mechanism

Abstract

The utility model belongs to the technical field of battery recovery, and discloses a battery pole piece diaphragm separation mechanism which comprises a rack, a winding assembly and a separation assembly, the winding assembly comprises a reel, one end of a positive pole piece is fixed on the reel, the reel is rotationally connected to the rack and the separation assembly, the separation assembly comprises a scraper, the scraper is arranged on the rack, and the scraper is arranged on the rack. A blade of the scraper abuts against the upper surface of the positive pole piece and is used for separating the positive pole piece from the second diaphragm, the separation assembly can divide the disassembled pole piece into two groups, specifically, one group comprises the positive pole piece, the other group comprises the second diaphragm, the negative pole piece and the first diaphragm, and the winding assembly is used for winding and collecting the positive pole piece. The positive pole piece and the negative pole piece in the pole piece bag are recycled and disassembled respectively, resource waste is avoided, pollution to the ecological environment is reduced, manual operation in the recycling process can be reduced, and harm to human bodies caused by harmful substances generated during folding and recycling of the pole piece bag is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of battery recycling, in particular to a battery pole piece diaphragm separation mechanism. Background Art

[0002] Lithium-ion batteries, commonly known as rocking chair batteries, are a general term for batteries with lithium-ion embedded compounds as positive electrode materials. They are secondary batteries (rechargeable batteries) that mainly rely on the movement of lithium ions between the positive and negative electrodes to work. Lithium-ion batteries are composed of positive electrodes, negative electrodes, electrolytes and diaphragms, plus positive and negative leads, battery shells, safety devices, etc. The diaphragm refers to a specially formed polymer film with a microporous structure that allows lithium ions to pass freely, but electrons cannot pass. Specifically, according to a layer of diaphragm, a layer of negative electrode, a layer of diaphragm, and a layer of positive electrode, two layers of diaphragms are stacked and wound into shape.

[0003] Metal elements such as nickel, cobalt, manganese, aluminum, and copper in batteries are high-value components (present on the positive and negative electrodes of the battery). If they cannot be fully recycled, it will cause waste of resources and pollute the ecological environment. In the existing technology, battery recycling is often done manually, and the harmful substances generated when the battery is disassembled and recycled are extremely harmful to the human body.

[0004] Therefore, a device is urgently needed to solve the above problems. Utility Model Content

[0005] The utility model aims to provide a battery pole piece diaphragm separation mechanism to reduce manual operations in the recycling process and reduce resource waste.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] Battery pole piece diaphragm separation mechanism, including:

[0008] frame;

[0009] A winding assembly, the winding assembly comprising a winding shaft, one end of the positive electrode sheet is fixed to the winding shaft, and the winding shaft is rotatably connected to the frame;

[0010] A separation component includes a scraper, which is arranged on the frame, and the blade of the scraper abuts against the upper surface of the positive electrode sheet, so as to separate the positive electrode sheet and the second diaphragm.

[0011] Preferably, the separation assembly also includes a rotating shaft, which is arranged below the positive electrode sheet and pressed against the positive electrode sheet, the positive electrode sheets on both sides of the rotating shaft are bent, and the blade of the scraper presses the contact point between the positive electrode sheet and the rotating shaft.

[0012] Preferably, the battery electrode diaphragm separation mechanism also includes a driving assembly, the driving assembly includes a first sliding unit, the first sliding unit includes a guide rail, a first sliding member and a first driving member, the guide rail is arranged on the frame, the first sliding member is slidably connected to the guide rail, the reel is arranged on the first sliding member, and the first driving member is configured to drive the first sliding member to slide along the guide rail.

[0013] Preferably, at least two guide rails are provided, two adjacent guide rails are arranged at intervals, and the first sliding member is slidably connected to at least two guide rails.

[0014] Preferably, the driving assembly includes a second sliding unit, the second sliding unit includes a second sliding member and a second driving member, the second sliding member is slidably connected to the first sliding member, the second driving member is configured to drive the second sliding member to slide along the first sliding member, and the reel is arranged on the second sliding member.

[0015] Preferably, the battery electrode diaphragm separation mechanism further comprises a recovery assembly, the recovery assembly comprises two barrels arranged at intervals, the scraper is located above one of the barrels, and the reel is located above the other barrel.

[0016] Preferably, at least two universal wheels are installed at intervals on the bottom of the barrel.

[0017] Preferably, the battery electrode diaphragm separation mechanism also includes a transmission component, which includes a workbench and a conveyor belt. The conveyor belt is arranged on the workbench, a hopper is arranged on the side of the frame close to the conveyor belt, and the output end of the conveyor belt is located above the hopper, and the conveyor belt is configured to transfer the electrode package to the hopper.

[0018] Preferably, the battery electrode sheet and diaphragm separation mechanism also includes a receiving platform, which is arranged on the frame, the receiving platform is located between the hopper and the reel, and the receiving platform is arranged to have an outward convex arc surface on the side facing the hopper, and the outward convex arc surface is configured to guide the positive electrode sheet, the second diaphragm, the negative electrode sheet and the first diaphragm.

[0019] Preferably, the frame includes a bracket and a support plate, the bracket is set on the ground, the support plate is connected to the bracket, and the support plate and the bracket are set at an angle, the scraper and the rotating shaft are both set on the support plate, and the reel is rotatably connected to the support plate.

[0020] Beneficial effects: The utility model provides a battery electrode sheet and diaphragm separation mechanism, including a frame, a winding assembly and a separation assembly, the winding assembly including a reel, one end of the positive electrode sheet is fixed to the reel, and the reel is rotatably connected to the frame separation assembly, the separation assembly including a scraper, the scraper is arranged on the frame, and the blade of the scraper abuts against the upper surface of the positive electrode sheet, for separating the positive electrode sheet and the second diaphragm; the separation assembly can divide the disassembled electrode sheet package into two groups, specifically, one group is the positive electrode sheet, and the other group is the second diaphragm, the negative electrode sheet and the first diaphragm, the winding assembly is used to wind and collect the positive electrode sheet, and recycle the positive electrode sheet and the negative electrode sheet in the disassembled electrode sheet package respectively, so as to avoid waste of resources, reduce pollution to the ecological environment, and also reduce manual operation during the recycling process, and reduce the harm to the human body caused by harmful substances generated when the electrode sheet package is folded and recycled. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the structure of a disassembled electrode package provided by an embodiment of the utility model;

[0022] Figure 2 It is a schematic diagram of the structure of another disassembled electrode package provided by an embodiment of the utility model;

[0023] Figure 3 It is a partial structural schematic diagram of a battery pole piece diaphragm separation mechanism provided by an embodiment of the utility model;

[0024] Figure 4 It is a structural schematic diagram of a battery pole piece diaphragm separation mechanism provided in an embodiment of the utility model.

[0025] In the figure:

[0026] 100, pole piece package; 101, positive pole piece; 102, second separator; 103, negative pole piece; 104, first separator;

[0027] 11. Bracket; 12. Support plate; 21. Reel; 31. Scraper; 32. Rotating shaft; 41. Barrel; 411. Universal wheel; 51. Guide rail; 52. First sliding member; 61. Second sliding member; 71. Workbench; 72. Conveyor belt; 8. Hopper; 9. Receiving platform. DETAILED DESCRIPTION

[0028] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0029] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" 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 an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0031] In the description of this embodiment, the terms "upper", "lower", "right", etc., are based on the directions or positions shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0032] Embodiment 1

[0033] It should be noted that if Figure 1 and Figure 2 As shown, the electrode package 100 includes a positive electrode sheet 101, a second diaphragm 102, a negative electrode sheet 103 and a first diaphragm 104. Specifically, the positive electrode sheet 101, the second diaphragm 102, the negative electrode sheet 103 and the first diaphragm 104 are stacked and wound in sequence, and the two adjacent electrodes are adhered and difficult to separate. This embodiment provides a battery electrode sheet diaphragm separation mechanism, which can separate and recycle the positive electrode sheet 101 and the negative electrode sheet 103 in the electrode package 100, and recycle the positive electrode sheet 101 and the negative electrode sheet 103 in the disassembled electrode package 100, so as to avoid waste of resources, reduce pollution to the ecological environment, and reduce manual operations during the recycling process, and reduce the harm to the human body caused by harmful substances generated when the electrode package 100 is disassembled and recycled.

[0034] Specifically, the battery electrode sheet diaphragm separation mechanism provided in this embodiment includes a winding assembly and a separation assembly, wherein the separation assembly is used to divide the disassembled electrode sheet package 100 into two groups, specifically, one group is the positive electrode sheet 101, and the other group is the second diaphragm 102, the negative electrode sheet 103 and the first diaphragm 104, and the winding assembly is used to wind and collect the positive electrode sheet 101.

[0035] Furthermore, if Figure 3 and Figure 4 As shown, the battery electrode diaphragm separation mechanism also includes a frame, which includes a bracket 11 and a support plate 12. The bracket 11 is set on the ground, and the support plate 12 is connected to the bracket 11, and the support plate 12 and the bracket 11 are set at an angle.

[0036] Specifically, Figure 3 As shown, the winding assembly includes a reel 21, and one end of the positive electrode sheet 101 is fixed to the reel 21. As the reel 21 rotates, the positive electrode sheet 101 can be rolled up on the reel 21, and the reel 21 is rotatably connected to the frame. Preferably, the reel 21 is rotatably connected to the support plate 12. Further, the separation assembly includes a scraper 31, and the scraper 31 is arranged on the frame. Preferably, the scraper 31 is arranged on the support plate 12, and the blade of the scraper 31 abuts against the upper surface of the positive electrode sheet 101, that is, the blade of the scraper 31 is placed between the positive electrode sheet 101 and the second diaphragm 102, for separating the positive electrode sheet 101 and the second diaphragm 102, and then dividing the disassembled electrode sheet package 100 into two groups.

[0037] Optionally, in other feasible embodiments, the scraper 31 may be replaced by an air gun, and the air outlet of the air gun is aimed between the positive electrode plate 101 and the second diaphragm 102 , which can also separate the positive electrode plate 101 from the second diaphragm 102 .

[0038] Furthermore, the separation component also includes a rotating shaft 32. Preferably, the rotating shaft 32 is arranged below the positive electrode sheet 101, and the rotating shaft 32 presses against and pushes up the positive electrode sheet 101, thereby bending the positive electrode sheets 101 located on both sides of the rotating shaft 32. Furthermore, the blade of the scraper 31 presses the contact point between the positive electrode sheet 101 and the rotating shaft 32, so that when the scraper 31 separates the positive electrode sheet 101 from the second diaphragm 102, the rotating shaft 32 can provide support for the blade. On the one hand, it can ensure that the positive electrode sheet 101 is smoothly scraped off the second diaphragm 102, and on the other hand, it can prevent the second diaphragm 102 from being damaged.

[0039] Alternatively, if Figure 4As shown, this embodiment also includes a recycling component, which includes two spaced-apart barrels 41, wherein the scraper 31 is located directly above one of the barrels 41, and the positive electrode sheet 101 scraped off by the scraper 31 will automatically fall into its corresponding barrel 41, and the remaining separated second diaphragm 102, negative electrode sheet 103 and first diaphragm 104 can be collected in the other barrel 41.

[0040] The battery electrode diaphragm separation mechanism provided in this embodiment also includes a driving component, the driving component includes a first sliding unit, the first sliding unit includes a guide rail 51, a first sliding member 52 and a first driving member, wherein the guide rail 51 is arranged on the frame, preferably, the guide rail 51 is horizontally arranged and arranged on the support plate 12, the first sliding member 52 is slidably connected to the guide rail 51, the reel 21 is arranged on the first sliding member 52, and the first driving member is configured to drive the first sliding member 52 to slide along the guide rail 51.

[0041] Optionally, at least two guide rails 51 are provided, and two adjacent guide rails 51 are spaced apart from each other. The first sliding member 52 is slidably connected to the at least two guide rails 51 to ensure that the first sliding member 52 remains stable during the sliding process.

[0042] Further preferably, the drive assembly also includes a second sliding unit, the second sliding unit includes a second sliding member 61 and a second driving member, wherein the second sliding member 61 is slidably connected to the first sliding member 52, the second driving member is configured to drive the second sliding member 61 to slide along the first sliding member 52, and the reel 21 is arranged on the second sliding member 61, so that the reel 21 can follow the first sliding member 52 to slide left and right on the guide rail 51, and can also follow the second sliding member 61 to slide up and down on the first sliding member 52, thereby improving the versatility and practicality of this embodiment.

[0043] Adaptively, at least two universal wheels 411 are installed at intervals at the bottom of each barrel 41, so that each barrel 41 can slide freely on the ground. On the one hand, it is convenient to receive the positive electrode sheet 101 collected by the reel 21 and the separated second diaphragm 102, negative electrode sheet 103 and first diaphragm 104 after the position of the reel 21 changes. On the other hand, it is also convenient to transfer them after the separation and collection are completed.

[0044] The battery electrode diaphragm separation mechanism provided in this embodiment also includes a transmission component, which is used to transport the disassembled electrode package 100. Specifically, the transmission component includes a workbench 71 and a conveyor belt 72, wherein the conveyor belt 72 is arranged on the workbench 71, and a hopper 8 is arranged on the side of the frame close to the conveyor belt 72, and preferably, the hopper 8 is arranged on the bracket 11. Further, the output end of the conveyor belt 72 is arranged above the hopper 8, and the disassembled electrode package 100 is arranged on the conveyor belt 72. After the conveyor belt 72 transmits the disassembled electrode package 100 to the output end, the disassembled electrode package 100 falls into the hopper 8, and at this time, one end of the positive electrode 101 is fixed on the reel 21. During the separation process, the disassembled electrode package 100 is always located in the hopper 8.

[0045] Adaptively, the battery electrode sheet and diaphragm separation mechanism also includes a receiving platform 9, which is arranged on the frame and located between the hopper 8 and the reel 21. Preferably, the bottom of the receiving platform 9 is connected to the bracket 11, and the side of the receiving platform 9 is connected to the support plate 12. In this embodiment, the side of the receiving platform 9 facing the hopper 8 is set as an outward convex arc surface, and the positive electrode sheet 101, the second diaphragm 102, the negative electrode sheet 103 and the first diaphragm 104 are guided by the outward convex arc surface to prevent the positive electrode sheet 101, the second diaphragm 102, the negative electrode sheet 103 and the first diaphragm 104 from being offset and damaged.

[0046] Embodiment 2

[0047] The battery electrode diaphragm separation mechanism provided in this embodiment is different from that in the first embodiment, specifically:

[0048] In this embodiment, the second diaphragm 102, the negative electrode sheet 103 and the first diaphragm 104 are wound on the reel 21 at the same time, and the disassembled electrode sheet package 100 is divided into two groups by the scraper 31. Specifically, one group is the positive electrode sheet 101, and the other group is the second diaphragm 102, the negative electrode sheet 103 and the first diaphragm 104. As the reel 21 rotates, the second diaphragm 102, the negative electrode sheet 103 and the first diaphragm 104 are rolled up on the reel 21, which also achieves the effect of separating the positive electrode sheet 101 from the negative electrode sheet 103.

[0049] Embodiment 3

[0050] The battery electrode diaphragm separation mechanism provided in this embodiment is different from that in the first embodiment, specifically:

[0051] In this embodiment, the positive electrode sheet 101 and the second diaphragm 102 are wound on the reel 21 at the same time, and the disassembled electrode sheet package 100 is divided into two groups by the scraper 31. Specifically, one group is the positive electrode sheet 101 and the second diaphragm 102, and the other group is the negative electrode sheet 103 and the first diaphragm 104. As the reel 21 rotates, the positive electrode sheet 101 and the second diaphragm 102 are rolled up on the reel 21, which also achieves the effect of separating the positive electrode sheet 101 from the negative electrode sheet 103.

[0052] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the scope of protection of the present invention. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the claims of the present invention.

Claims

1. Battery pole piece diaphragm separation mechanism, characterized in that: include: frame; A winding assembly, the winding assembly comprising a winding shaft (21), one end of the positive electrode sheet (101) is fixed to the winding shaft (21), and the winding shaft (21) is rotatably connected to the frame; A separation component, the separation component comprising a scraper (31), the scraper (31) being arranged on the frame, and the blade of the scraper (31) being in contact with the upper surface of the positive electrode sheet (101), for separating the positive electrode sheet (101) and the second diaphragm (102).

2. The battery pole piece diaphragm separation mechanism according to claim 1, characterized in that: The separation assembly further comprises a rotating shaft (32), wherein the rotating shaft (32) is arranged below the positive electrode sheet (101) and is pressed against the positive electrode sheet (101), the positive electrode sheets (101) located on both sides of the rotating shaft (32) are bent, and the blade of the scraper (31) presses the contact point between the positive electrode sheet (101) and the rotating shaft (32).

3. The battery pole piece diaphragm separation mechanism according to claim 1, characterized in that: The battery electrode diaphragm separation mechanism also includes a driving component, the driving component includes a first sliding unit, the first sliding unit includes a guide rail (51), a first sliding member (52) and a first driving member, the guide rail (51) is arranged on the frame, the first sliding member (52) is slidably connected to the guide rail (51), the reel (21) is arranged on the first sliding member (52), and the first driving member is configured to drive the first sliding member (52) to slide along the guide rail (51).

4. The battery pole piece diaphragm separation mechanism according to claim 3, characterized in that: At least two guide rails (51) are provided, two adjacent guide rails (51) are arranged at intervals, and the first sliding member (52) is slidably connected to the at least two guide rails (51).

5. The battery pole piece diaphragm separation mechanism according to claim 3, characterized in that: The driving assembly includes a second sliding unit, the second sliding unit includes a second sliding member (61) and a second driving member, the second sliding member (61) is slidably connected to the first sliding member (52), the second driving member is configured to drive the second sliding member (61) to slide along the first sliding member (52), and the reel (21) is arranged on the second sliding member (61).

6. The battery pole piece diaphragm separation mechanism according to claim 1, characterized in that: The battery electrode membrane separation mechanism also includes a recovery component, which includes two barrels (41) arranged at intervals, the scraper (31) is located above one of the barrels (41), and the reel (21) is located above the other barrel (41).

7. The battery pole piece diaphragm separation mechanism according to claim 6, characterized in that: At least two universal wheels (411) are installed at intervals on the bottom of the barrel (41).

8. The battery pole piece diaphragm separation mechanism according to claim 1, characterized in that: The battery electrode diaphragm separation mechanism also includes a transmission component, which includes a workbench (71) and a conveyor belt (72). The conveyor belt (72) is arranged on the workbench (71), and a hopper (8) is arranged on a side of the frame close to the conveyor belt (72), and the output end of the conveyor belt (72) is located above the hopper (8). The conveyor belt (72) is configured to transfer the electrode package (100) to the hopper (8).

9. The battery pole piece diaphragm separation mechanism according to claim 8, characterized in that: The battery electrode sheet and diaphragm separation mechanism also includes a receiving platform (9), which is arranged on the frame, and the receiving platform (9) is located between the hopper (8) and the reel (21), and the receiving platform (9) is arranged to have an outer convex arc surface on one side facing the hopper (8), and the outer convex arc surface is configured to guide the positive electrode sheet (101), the second diaphragm (102), the negative electrode sheet (103) and the first diaphragm (104).

10. The battery pole piece diaphragm separation mechanism according to claim 2, characterized in that: The frame comprises a bracket (11) and a support plate (12); the bracket (11) is arranged on the ground; the support plate (12) is connected to the bracket (11); the support plate (12) and the bracket (11) are arranged at an angle; the scraper (31) and the rotating shaft (32) are both arranged on the supporting plate (12); and the reel (21) is rotatably connected to the supporting plate (12).

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