Battery cell separation equipment

Abstract

The invention discloses battery cell separation equipment, and relates to the technical field of battery recovery. The battery cell separation equipment comprises a rack and further comprises a driving assembly and two winding assemblies which are arranged on the rack, and the driving assembly is used for driving the two winding assemblies to rotate; each winding assembly comprises a connecting disc, a winding piece arranged on the connecting disc, an adsorption piece arranged in the winding piece and a shaft body used for being matched with the adsorption piece, and a groove is formed in the position, corresponding to the adsorption piece, of the winding piece; the shaft body is used for clamping and fixing a pole piece or / and a thin film and is also used for loosening the winding of the pole piece or / and the thin film. The clamping device is high in clamping and fixing reliability, easy and convenient to operate, simple in structure and low in cost.

Description

Technical Field

[0001] The present invention relates to the technical field of battery recycling, and in particular to a battery cell separation device. Background Art

[0002] With the increasing attention paid to environmental protection and sustainable development worldwide, the popularity of new energy vehicles is increasing rapidly, which has directly led to the rapid growth of battery manufacturing and use. However, the rapid growth of battery use has also led to an increase in the number of waste batteries. Waste batteries contain a large amount of valuable materials that can be recycled, and if waste batteries are not properly handled, they may cause serious pollution to the environment. Therefore, recycling waste batteries has become a mainstream development trend.

[0003] The cells of used batteries are usually composed of positive and negative electrodes and the separators between them. Separating the cells and recycling them separately is a crucial step. Because the parts are stacked and tightly wound, a structure that is difficult to separate is formed. Currently, the separation of cells mainly relies on manual separation, which is inefficient. Summary of the invention

[0004] In view of this, an object of the present invention is to provide a battery cell separation device with high reliability of clamping and fixing, easy operation, simple structure and low cost.

[0005] A cell separation device in the present invention comprises a frame, a driving assembly and two winding assemblies arranged on the frame, wherein the driving assembly is used to drive the two winding assemblies to rotate; the two winding assemblies each comprise a connecting disk, a winding member arranged on the connecting disk, an adsorbing member arranged inside the winding member, and a shaft body used to cooperate with the adsorbing member, and a groove is arranged on the winding member at a position corresponding to the adsorbing member; When the pole piece of the battery cell and / or the head end of the film are placed on the winding member, the shaft body can be pressed against the groove, and the shaft body can be adsorbed by the adsorbent to achieve clamping and fixing of the pole piece of the battery cell and / or the head end of the film; After the winding of the pole piece and / or film of the battery cell is completed, the winding of the pole piece and / or film can be loosened by removing the shaft, so as to facilitate the removal of the pole piece and / or film from the winding member.

[0006] Furthermore, the winding member is an aluminum profile, and first chambers are respectively arranged at the four corners of the winding member, a second chamber is arranged between two adjacent first chambers, the adsorption member is arranged in the second chamber, and the second chamber opens to the outside to form the groove.

[0007] Furthermore, at least two mounting rods are provided on the connection plate, and each mounting rod is inserted into one of the first chambers respectively.

[0008] Furthermore, the outer diameter of the shaft body is greater than the width of the groove.

[0009] Furthermore, the adsorption member is a magnet, and the shaft is an iron rod.

[0010] Furthermore, the driving assembly includes a driving element and a transmission assembly, and the driving assembly can drive the two winding assemblies to rotate through the transmission assembly.

[0011] Further, the transmission assembly includes a first rotating shaft, a first intermediate shaft, a second intermediate shaft and a second rotating shaft rotatably arranged on the frame, the front part of the first rotating shaft is fixedly connected to one of the connecting plates, the front part of the second rotating shaft is fixedly connected to the other connecting plate, and the driving assembly can drive the first rotating shaft, the first intermediate shaft, the second intermediate shaft and the second rotating shaft to rotate.

[0012] Further, a first pulley is provided on the output shaft of the driving element, a second pulley is provided at the rear of the first rotating shaft, a third pulley is provided at the middle of the first rotating shaft, a fourth pulley is provided at the front of the first intermediate shaft, a first gear is provided at the rear of the first intermediate shaft, a second gear is provided at the rear of the second intermediate shaft, a fifth pulley is provided at the front of the second intermediate shaft, and a sixth pulley is provided at the middle of the second rotating shaft; the first pulley is connected to the second pulley by a belt drive, the third pulley is connected to the fourth pulley by a belt drive, the first gear is meshed with the second gear, and the fifth pulley is connected to the sixth pulley by a belt drive.

[0013] The beneficial effects of the present invention are as follows: when positioning the head end of the pole piece or / and film before winding, the present invention only needs to place the head end of the pole piece or / and film between the shaft and the groove, and the adsorbent provides attraction for the shaft, the reliability of clamping and fixing is high, and after the shaft is pulled out after winding, the shaft no longer occupies the internal space of the winding structure, so that the wound pole piece or / and film becomes loose, which can facilitate the removal of the pole piece or / and film from the winding piece, avoiding the inability to remove the pole piece or / and film due to tight winding. Therefore, the operation of separating the battery cells is simple, the structure is simple, and the cost is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to make the purpose, technical solution and beneficial effects of the present invention clearer, the present invention provides the following drawings for illustration: Figure 1 It is a front view of the present invention (the shaft body is not shown); Figure 2 It is a top view of the present invention (the shaft body is not shown); Figure 3It is a side view of the present invention (the shaft body and part of the frame are not shown); Figure 4 This is one of the schematic diagrams of the principle of clamping and fixing the pole piece and / or the film of the present invention (the left figure is before clamping, and the right figure is after clamping); Figure 5 The second schematic diagram of the principle of clamping and fixing the pole piece and / or the film of the present invention (the left figure is before clamping, and the right figure is after clamping); Figure 6 It is a schematic diagram of the structure of the pole piece and / or film after winding of the present invention.

[0015] The markings in the accompanying drawings are as follows: 1-frame, 2-driving assembly, 201-driving element, 2011-first pulley, 202-first rotating shaft, 2021-second pulley, 2022-third pulley, 203-first intermediate shaft, 2031-fourth pulley, 2032-first gear, 204-second intermediate shaft, 2041-second gear, 2042-fifth pulley, 205-second rotating shaft, 2051-sixth pulley, 3-winding assembly, 301-connecting disk, 3011-mounting rod, 302-winding member, 3021-first chamber, 3022-second chamber, 3023-groove, 303-adsorption member, 304-shaft body. DETAILED DESCRIPTION

[0016] The technical solution of the present invention is described in detail below in conjunction with the accompanying drawings and embodiments.

[0017] like Figure 1-Figure 6 As shown, a cell separation device in this embodiment includes a frame 1, and also includes a driving assembly 2 and two winding assemblies 3 arranged on the frame 1, wherein the driving assembly 2 is used to drive the two winding assemblies 3 to rotate; the two winding assemblies 3 each include a connecting disk 301, a winding member 302 arranged on the connecting disk 301, an adsorption member 303 arranged inside the winding member 302, and a shaft 304 used to cooperate with the adsorption member 303, and a groove 3023 is arranged on the winding member 302 at a position corresponding to the adsorption member 303; When the pole piece or / and the head end of the film of the battery cell rests on the winding member 302, the shaft 304 can be pressed against the groove 3023, and the shaft 304 can be adsorbed by the adsorption member 303 to achieve clamping and fixing of the pole piece or / and the head end of the film of the battery cell; After the winding of the pole piece and / or film of the battery cell is completed, the winding of the pole piece and / or film can be loosened by removing the shaft 304 , so as to facilitate the removal of the pole piece and / or film from the winding member 302 .

[0018] A cell separation device in this embodiment includes the following steps when used: S1. The battery cell includes a positive electrode sheet, a first film, a negative electrode sheet, and a second film stacked in sequence. First, the first end of the first film is manually separated from the first end of the negative electrode sheet. The positive electrode sheet and the first film are still stacked, and the negative electrode sheet and the second film are still stacked. Then, Figure 4 and Figure 5 As shown, the head end of the double-layer structure of the positive electrode sheet and the first film is placed on one of the windings 302, and is placed on the groove 3023 through the shaft 304, and the shaft 304 is adsorbed by the adsorbent 303. At this time, the head end of the double-layer structure of the positive electrode sheet and the first film is clamped and fixed on the winding 302 by the shaft 304. Next, the head end of the double-layer structure of the negative electrode sheet and the second film is placed on the other winding 302, and is placed on the groove 3023 through the shaft 304. The shaft 304 is adsorbed by the adsorbent 303. At this time, the head end of the double-layer structure of the negative electrode sheet and the second film is clamped and fixed on the winding 302 by the shaft 304.

[0019] S2, the driving assembly 2 drives the two winding assemblies 3 to rotate, such as Figure 6 As shown, the double-layer structure of the positive electrode sheet and the first film is wound on one of the windings 302 , and the double-layer structure of the negative electrode sheet and the second film is wound on the other winding 302 .

[0020] S3. After completing the winding of step S2, take out the two shafts 304. After the shafts 304 are pulled out, the structure wound on the winding member 302 becomes loose, so that it is easy to remove the double-layer structure of the positive electrode sheet and the first film from one of the winding members 302, and to remove the double-layer structure of the negative electrode sheet and the second film from the other winding member 302.

[0021] S4, separate the double-layer structure of the positive electrode sheet and the first film. First, manually separate the head end of the positive electrode sheet from the head end of the first film. Then, place the head end of the positive electrode sheet on one of the windings 302, and place it on the groove 3023 through the shaft 304, and rely on the adsorption member 303 to adsorb the shaft 304. At this time, the head end of the positive electrode sheet is clamped and fixed on the winding 302 by the shaft 304. Next, place the head end of the first film on another winding 302, and place it on the groove 3023 through the shaft 304, and rely on the adsorption member 303 to adsorb the shaft 304. At this time, the head end of the first film is clamped and fixed on the winding 302 by the shaft 304.

[0022] S5 , the driving assembly 2 drives the two winding assemblies 3 to rotate, the positive electrode sheet is wound on one of the winding members 302 , and the first film is wound on the other winding member 302 .

[0023] S6. After completing the winding of step S5, take out the two shafts 304. After the shafts 304 are pulled out, the structure wound on the winding member 302 becomes loose, so that the positive electrode sheet can be removed from one of the winding members 302, and the first film can be removed from the other winding member 302.

[0024] S7, separate the double-layer structure of the negative electrode sheet and the second film. First, manually separate the head end of the negative electrode sheet from the head end of the second film. Then, place the head end of the negative electrode sheet on one of the windings 302, and place it on the groove 3023 through the shaft 304, and rely on the adsorption member 303 to adsorb the shaft 304, at this time, the head end of the negative electrode sheet is clamped and fixed on the winding 302 by the shaft 304. Next, place the head end of the second film on another winding 302, and place it on the groove 3023 through the shaft 304, and rely on the adsorption member 303 to adsorb the shaft 304, at this time, the head end of the second film is clamped and fixed on the winding 302 by the shaft 304.

[0025] S8 , the driving assembly 2 drives the two winding assemblies 3 to rotate, the negative electrode sheet is wound on one of the winding members 302 , and the second film is wound on the other winding member 302 .

[0026] S9. After completing the winding of step S8, take out the two shafts 304. After the shafts 304 are pulled out, the structure wound on the winding member 302 becomes loose, so that it is easy to remove the negative electrode sheet from one of the winding members 302, so that it is easy to remove the second film from the other winding member 302.

[0027] Through the above steps S1-S9, the positive electrode sheet, the first film, the negative electrode sheet and the second film of the battery cell are separated.

[0028] When positioning the head end of the pole piece or / and film before winding, it is only necessary to place the head end of the pole piece or / and film between the shaft 304 and the groove 3023. The adsorbent 303 provides attraction for the shaft 304, and the clamping reliability is high. After the shaft 304 is pulled out after winding, the shaft 304 no longer occupies the internal space of the winding structure, so that the wound pole piece or / and film becomes loose, which can facilitate the removal of the pole piece or / and film from the winding member 302, avoiding the inability to remove the pole piece or / and film due to tight winding. Therefore, the operation of separating the battery cells is simple, the structure is simple, and the cost is low.

[0029] In this embodiment, the winding member 302 is an aluminum profile, and first chambers 3021 are respectively provided at the four corners of the winding member 302, and a second chamber 3022 is provided between two adjacent first chambers 3021. The adsorbent 303 is provided in the second chamber 3022, and the second chamber 3022 opens to the outside to form the groove 3023. In this embodiment, at least two mounting rods 3011 are provided on the connection plate 301, and each mounting rod 3011 is respectively inserted into one of the first chambers 3021.

[0030] Aluminum profiles are widely used materials, and the cost is further reduced. The cross section of the aluminum profile used in this embodiment is a quadrilateral, and each corner of the quadrilateral has a first chamber 3021 inside, and each first chamber 3021 is not located at the center of the winding member 302, so after the two mounting rods 3011 fixed on the connecting disk 301 are respectively inserted into the two first chambers 3021, the winding member 302 can rotate synchronously with the connecting disk 301.

[0031] In this embodiment, the outer diameter of the shaft 304 is greater than the width of the groove 3023. The outer diameter of the shaft 304 may be 1.1 to 2 times the width of the groove 3023, so that the shaft 304 does not pass through the groove 3023, ensuring that the shaft 304 cooperates with the groove 3023 to clamp the pole piece and / or the film. The length of the shaft 304 is preferably greater than the length of the pole piece, the film or the winding 302, so as to facilitate the extraction of the shaft 304 from the wound pole piece or film.

[0032] In this embodiment, the adsorption member 303 is a magnet, and the shaft 304 is an iron rod. Both the magnet and the iron rod are common materials. A screw hole is provided on the magnet, and after the magnet is placed in the second chamber 3022, the magnet is fixed inside the winding member 302 by screws.

[0033] In this embodiment, the driving assembly 2 includes a driving element 201 and a transmission assembly. The driving assembly 2 can drive the two winding assemblies 3 to rotate through the transmission assembly.

[0034] In this embodiment, the transmission assembly includes a first rotating shaft 202, a first intermediate shaft 203, a second intermediate shaft 204 and a second rotating shaft 205 rotatably arranged on the frame 1, the front portion of the first rotating shaft 202 is fixedly connected to one of the connecting disks 301, the front portion of the second rotating shaft 205 is fixedly connected to the other connecting disk 301, and the driving assembly 2 can drive the first rotating shaft 202, the first intermediate shaft 203, the second intermediate shaft 204 and the second rotating shaft 205 to rotate.

[0035] In this embodiment, a first pulley 2011 is provided on the output shaft of the driving element 201, a second pulley 2021 is provided at the rear of the first rotating shaft 202, a third pulley 2022 is provided at the middle of the first rotating shaft 202, a fourth pulley 2031 is provided at the front of the first intermediate shaft 203, a first gear 2032 is provided at the rear of the first intermediate shaft 203, a second gear 2041 is provided at the rear of the second intermediate shaft 204, a fifth pulley 2042 is provided at the front of the second intermediate shaft 204, and a sixth pulley 2051 is provided at the middle of the second rotating shaft 205; the first pulley 2011 is connected to the second pulley 2021 by belt transmission, the third pulley 2022 is connected to the fourth pulley 2031 by belt transmission, the first gear 2032 is meshed with the second gear 2041, and the fifth pulley 2042 is connected to the sixth pulley 2051 by belt transmission.

[0036] Through the transmission assembly, one driving element 201 can drive two winding members 302 to rotate, and the speeds of the two winding members 302 can be the same by properly setting the specifications of the pulleys and gears. The driving element 201 can be a motor.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. A cell separation device, comprising a frame (1), characterized in that: It also comprises a driving assembly (2) and two winding assemblies (3) arranged on the frame (1), wherein the driving assembly (2) is used to drive the two winding assemblies (3) to rotate; the two winding assemblies (3) each comprise a connecting disk (301), a winding member (302) arranged on the connecting disk (301), an adsorption member (303) arranged inside the winding member (302), and a shaft (304) used to cooperate with the adsorption member (303), and a groove (3023) is arranged on the winding member (302) at a position corresponding to the adsorption member (303); When the pole piece of the battery cell or / and the head end of the film rests on the winding member (302), the shaft (304) can be pressed against the groove (3023), and the shaft (304) can be adsorbed by the adsorption member (303), so as to clamp and fix the pole piece of the battery cell or / and the head end of the film; After the winding of the pole piece and / or the film of the battery cell is completed, the winding of the pole piece and / or the film can be loosened by removing the shaft (304), so as to facilitate the removal of the pole piece and / or the film from the winding member (302).

2. The battery cell separation device according to claim 1, characterized in that: The winding member (302) is an aluminum profile, and first chambers (3021) are respectively arranged at the four corners of the winding member (302), a second chamber (3022) is arranged between two adjacent first chambers (3021), the adsorption member (303) is arranged in the second chamber (3022), and the second chamber (3022) is open to the outside to form the groove (3023).

3. The battery cell separation device according to claim 2, characterized in that: At least two mounting rods (3011) are provided on the connection disk (301), and each mounting rod (3011) is inserted into one of the first chambers (3021).

4. The cell separation device according to claim 2, characterized in that: The outer diameter of the shaft body (304) is greater than the width of the groove (3023).

5. The battery cell separation device according to claim 1, characterized in that: The adsorption member (303) is a magnet, and the shaft (304) is an iron rod.

6. The battery cell separation device according to claim 1, characterized in that: The driving assembly (2) comprises a driving element (201) and a transmission assembly, and the driving assembly (2) can drive the two winding assemblies (3) to rotate via the transmission assembly.

7. The cell separation device according to claim 6, characterized in that: The transmission assembly comprises a first rotating shaft (202), a first intermediate shaft (203), a second intermediate shaft (204) and a second rotating shaft (205) which are rotatably arranged on the frame (1); the front portion of the first rotating shaft (202) is fixedly connected to one of the connecting plates (301); the front portion of the second rotating shaft (205) is fixedly connected to another connecting plate (301); and the driving assembly (2) is capable of driving the first rotating shaft (202), the first intermediate shaft (203), the second intermediate shaft (204) and the second rotating shaft (205) to rotate.

8. The cell separation device according to claim 7, characterized in that: The output shaft of the driving element (201) is provided with a first pulley (2011), the rear portion of the first rotating shaft (202) is provided with a second pulley (2021), the middle portion of the first rotating shaft (202) is provided with a third pulley (2022), the front portion of the first intermediate shaft (203) is provided with a fourth pulley (2031), the rear portion of the first intermediate shaft (203) is provided with a first gear (2032), the rear portion of the second intermediate shaft (204) is provided with a second gear (2041), and the second intermediate shaft (204) is provided with a second gear (2042). A fifth pulley (2042) is arranged at the front of the second rotating shaft (204), and a sixth pulley (2051) is arranged at the middle of the second rotating shaft (205); the first pulley (2011) and the second pulley (2021) are connected via a belt drive, the third pulley (2022) and the fourth pulley (2031) are connected via a belt drive, the first gear (2032) and the second gear (2041) are meshed, and the fifth pulley (2042) and the sixth pulley (2051) are connected via a belt drive.

Images