CN207938749U - A lithium battery current collector recycling device - Google Patents

Abstract

The utility model belongs to recycling of WEEE and utilizes technical field, discloses a kind of lithium battery collector retracting device.The lithium battery collector retracting device includes for lithium battery electric core to be clamped and can drive clamping rotating mechanism, the collector for removing lithium battery electric core that lithium battery electric core rotates and can drive the stripping unfolding mechanism of outer layer collector expansion, the roller mechanism for making outer layer collector be fully deployed and for stopping that internal layer collector enters the separating mechanism of roller mechanism；The same side that rotating mechanism and separating mechanism are set to roller mechanism is clamped, stripping unfolding mechanism is movably arranged in the inside of roller mechanism.The utility model is by using the mutual cooperation that rotating mechanism is clamped, removes unfolding mechanism and separating mechanism, so that the collector of lithium battery electric core is stripped, simultaneously outer layer collector is recovered from internal layer collector along different paths, realizing positive and negative collector automatically can individually be disassembled.

Description

A lithium battery current collector recycling device

technical field

The utility model relates to the technical field of electronic waste recycling, in particular to a lithium battery current collector recycling device.

Background technique

The production process of lithium batteries is mature, the packaging cost is low, the yield rate of battery products is high, and it has the advantages of high energy density, good safety, and good consistency. With the extensive application of lithium batteries, lithium batteries are about to usher in a peak of scrapping. How to dispose of these scrapped lithium batteries has become a problem that cannot be underestimated.

The main part of the lithium battery is the cell, and the main part of the cell is the pole piece. When assembling, it is placed in the order of positive electrode sheet-diaphragm-negative electrode sheet-diaphragm from top to bottom, and is wound into a battery cell. The battery cell is put into the battery shell, and then through the process of injecting electrolyte and sealing, the assembly process of the lithium battery is completed, and the finished battery is made. The positive and negative electrodes of the pole piece are mainly current collectors (mainly referring to copper foil and aluminum foil), and the cost of current collectors accounts for a large proportion of the overall cost of lithium batteries. Therefore, the separation and recovery of current collectors has considerable economic benefits. benefits and social benefits.

Risks such as electrolyte leakage and heavy metal diffusion are prone to occur during lithium battery recycling. If the battery is disassembled manually, there are safety hazards such as electrolyte corrosion of hands or inhalation of HF gas that is harmful to health. At this stage, the recycling of waste lithium batteries mainly relies on physical crushing and chemical extraction. The above-mentioned recycling technologies have defects such as high energy consumption, easy to produce secondary pollution, and incomplete separation and recycling.

Therefore, there is an urgent need for a novel lithium battery current collector recovery device to solve the above problems.

Utility model content

The purpose of the utility model is to provide a lithium battery current collector recovery device, so that the positive and negative current collectors can be automatically disassembled separately.

For this purpose, the utility model adopts the following technical solutions:

A lithium battery current collector recovery device, the current collector includes an outer layer current collector and an inner layer current collector, the current collector recovery device includes a clamping and rotating mechanism for clamping lithium battery cells and driving the lithium battery cells to rotate, The peeling and unfolding mechanism used to peel off the current collector of the lithium battery cell and can drive the outer layer current collector to expand, the roller mechanism used to fully expand the outer layer current collector, and the separation mechanism used to prevent the inner layer current collector from entering the roller mechanism ;

Both the clamping and rotating mechanism and the separating mechanism are arranged on the same side of the roller mechanism, and the peeling and unfolding mechanism is movably installed inside the roller mechanism.

Preferably, it also includes a feeding mechanism for supplying lithium battery cells, a delivery mechanism for transporting lithium battery cells from the feeding mechanism to the clamping and rotating mechanism, and reclaiming the peeled outer layer current collector and The recovery mechanism of the inner layer collector and the exhaust gas treatment mechanism for treating the exhaust gas and dust generated by the collector recovery device;

The feeding mechanism, conveying mechanism, clamping and rotating mechanism, separating mechanism, roller mechanism and peeling and unfolding mechanism are all located on the operating platform;

Both the recovery mechanism and the exhaust gas treatment mechanism are located under the operating platform.

As preferably, the feeding mechanism includes a vibrating plate, a slideway and a slideway support frame, the vibrating plate and the slideway support frame are all arranged on the operating platform, the discharge port of the vibrating plate is connected with one end of the slideway, and the other end of the slideway It is connected with the transmission mechanism, and the slideway support frame is located under the slideway.

Preferably, the clamping and rotating mechanism includes a horizontal motion mechanism, a kinematic link, a vertical motion mechanism, a clamping cylinder, a rotating motor, and a cell clamping rod for clamping a lithium battery cell in sequence, and the horizontal motion mechanism is located at On the operating platform, the rotating motor drives the cell clamping rod to rotate.

Preferably, the roller mechanism includes:

The lower roller fixing plate is arranged on the operating platform, and the lower roller fixing plate is provided with the lower roller, the lower roller motor and the lower roller connecting plate;

The upper roller fixing plate is arranged on the lower roller fixing plate, and the upper roller fixing plate is successively provided with an upper roller guide rail, an upper roller connecting plate and an upper roller;

The upper roller is located above the lower roller, and the peeling and unfolding mechanism is movably installed between the upper roller and the lower roller.

Preferably, the peeling and launching mechanism includes peeling and launching guide rails connected in sequence, peeling and launching connectors, peeling and launching cylinders, cylinder connectors, pneumatic grippers and unfolding fingers, and the peeling and launching guide rails are located on the operating platform, and the ends of the launching fingers can be abutted against To the outside of the lithium battery cell clamped by the cell clamping rod, cooperate with the rotating motor to realize the peeling of the current collector, and drive the outer layer of the current collector to expand, so that the outer layer of the current collector is located between the upper roller and the lower roller.

Preferably, the separation mechanism includes a separation fixing plate, a separation guide rail, a separation guide rail connector and a separation finger connected in sequence, the separation fixing plate is located on the operating platform, and the separation finger can abut against the inner layer current collector to block the inner layer current collector Enter the roller mechanism.

Preferably, recycling institutions include:

A first recovery box, on which a first recovery port is opened at a position corresponding to the operating platform, for recovery of the outer layer current collector;

The second recovery box is provided with a second recovery port at a position corresponding to the operation platform for recovery of the inner layer current collector.

The beneficial effects of the utility model:

1) The structure of the recovery device is simple and easy to operate. It has all the functions from battery charging to current collector recovery. It has a high degree of automation and can be used for the recovery of various specifications of waste cylindrical lithium battery current collectors;

2) The recovery device has a high degree of integration and a small footprint. It is suitable for industrial recycling lines and laboratory research. It can avoid the safety hazards of manual dismantling and improve dismantling efficiency. The fine dismantling of each part of the battery cell can effectively improve the recovery. purity;

3) Each mechanism of the device of the utility model is independent, which is convenient for maintenance and parts replacement;

4) The feeding mechanism of the present utility model automatically and accurately transports the disordered batteries manually poured into the feeding mechanism to the next process in an orderly and directional arrangement. The structure is simple and compact, the cost is low, and the labor intensity is reduced. Improve work efficiency;

5) The clamping and rotating mechanism of the utility model has a flexible design and high precision, and can complete the clamping and rotating action for batteries of various specifications;

6) The device of this utility model has a sealed design, with a recovery box at the bottom and an air outlet at the top, and an external exhaust gas treatment device for green treatment to avoid environmental pollution by HF exhaust gas and dust.

Description of drawings

Fig. 1 is a schematic structural view of a lithium battery current collector recovery device provided by the utility model;

Fig. 2 is a schematic structural view of the feeding mechanism and the transmission mechanism in Fig. 1;

Fig. 3 is a schematic structural view of the clamping and rotating mechanism in Fig. 1;

Fig. 4 is the structural representation of separating mechanism in Fig. 1;

Fig. 5 is a structural schematic diagram of the roller mechanism in Fig. 1;

Fig. 6 is a schematic structural view of the peeling and unfolding mechanism in Fig. 1 .

In the picture:

1. Operation platform; 2. Feeding mechanism; 3. Transmission mechanism; 4. Clamping and rotating mechanism; 5. Separation mechanism; 6. Roller mechanism; 7. Peeling and unfolding mechanism; 8. Recovery mechanism; ;

21. Vibration plate; 22. Slideway; 23. Slideway support frame;

41. Horizontal motion mechanism; 42. Motion connector; 43. Vertical motion mechanism; 44. Rotary motor; 45. Battery clamping rod; 46. Lithium battery cell; 47. Clamping cylinder;

51. Separate fixed plate; 52. Separate guide rail; 53. Separate guide rail connector; 54. Separate fingers;

61. Lower roller fixing plate; 62. Lower roller; 63. Lower roller motor; 64. Lower roller connecting plate; 65. Upper roller fixing plate; 66. Upper roller guide rail; 67. Upper roller connection Plate; 68, the upper roller;

71. Stripping and unfolding guide rails; 72. Stripping and unfolding connectors; 73. Stripping and unfolding cylinders; 74. Cylinder connectors; 75. Pneumatic grippers; 76. Spreading fingers.

Detailed ways

The technical scheme of the utility model will be further described below in conjunction with the accompanying drawings and through specific embodiments.

As shown in Figure 1, a lithium battery current collector recovery device provided by the utility model includes an operating platform 1 and a feeding mechanism 2, a transmission mechanism 3, and a clamping and rotating mechanism 4 arranged in sequence according to the lithium battery current collector disassembly process , separation mechanism 5, roller mechanism 6, peeling and unfolding mechanism 7, recovery mechanism 8 and tail gas treatment mechanism 9, wherein:

As shown in Figure 2, feeding mechanism 2 comprises vibrating plate 21, slideway 22 and slideway support frame 23, and vibrating plate 21 and slideway support frame 23 are all arranged on the operating platform 1, and the discharge opening of vibrating plate 21 and One end of the slideway 22 is connected, the other end of the slideway 22 is connected with the transmission mechanism 3 , and the slideway support frame 23 is located below the slideway 22 . The feeding mechanism 2 is used to realize the automatic feeding of the cylindrical lithium battery cells 46. Specifically, the scattered cylindrical lithium battery cells 46 are manually poured into the vibrating plate 21, and the vibrating plate 21 starts to work to displace the disordered lithium battery cells 46. The battery cells 46 are automatically arranged in an orderly manner, and after continuous transportation, the lithium battery cells 46 accurately fall into the U-shaped groove of the transmission mechanism 3 through the slideway 22 .

The transmission mechanism 3 can complete the orderly transportation of lithium battery cells 46, which includes a conveyor belt bracket, a conveyor belt, and a transmission power mechanism. Using the above transmission mechanism 3, the feeding mechanism 2 is transported to the lithium battery cells 46 on the conveyor belt in an orderly manner. It is transported to the required position of the next process (that is, the clamping and rotating mechanism 4).

As shown in Figure 3, the clamping and rotating mechanism 4 includes a horizontal motion mechanism 41, a kinematic link 42, a vertical motion mechanism 43, a clamping cylinder 47, a rotating motor 44 and a motor for clamping a lithium battery cell 46 connected in sequence. The cell clamping rod 45 and the horizontal movement mechanism 41 are located on the operating platform 1 , and the rotating motor 44 drives the cell clamping rod 45 to rotate. When the lithium battery cell 46 on the transmission mechanism 3 moves to a certain position, the cell clamping rod 45 is driven by the horizontal motion mechanism 41 and the vertical motion mechanism 43 to complete the horizontal and vertical movements respectively, and then use The clamping cylinder 47 makes the two cell clamping rods 45 clamp the lithium battery cell 46, and after the horizontal motion mechanism 41 and the vertical motion mechanism 43 transport the lithium battery cell 46 to the required position, the cell clamping rod 45 Driven by the rotating motor 44 , the rotation of the lithium battery cell 46 is realized.

As shown in Figure 6, the peeling and launching mechanism 7 includes peeling and launching guide rails 71, peeling and launching connectors 72, peeling and launching cylinders 73, cylinder connectors 74, pneumatic grippers 75 and unfolding fingers 76 connected in sequence, and the peeling and launching guide rails 71 are located at the operating position. On the platform 1, the end of the unfolding finger 76 can abut against the outside of the lithium battery cell 46 clamped by the cell clamping rod 45, cooperate with the rotating motor 44 to realize the stripping of the current collector, and drive the outer layer of the current collector to expand, specifically , to drive the outer current collector and the adjacent two layers of diaphragms to expand together, so that the outer current collector and the two layers of diaphragms are located between the upper roller 68 and the lower roller 62 . Specifically, after the clamping and rotating mechanism 4 realizes the clamping of the cell, the pneumatic gripper 75 drives the unfolding finger 76 to open, and the unfolding finger 76 is driven by the cylinder 73 of the peeling and unfolding mechanism to abut against the outside of the lithium battery cell 46, Withstand the lithium battery cell 46, and the rotating motor 44 drives the cell clamping rod 45 and the lithium battery cell 46 to rotate. At this time, due to the effect of unfolding the fingers 76, the outer layer of the lithium battery cell 46 is peeled off, and then unfolded The fingers 76 are closed to clamp the peeled outer current collector layer and the two layers of diaphragms. Under the action of the peeling and unfolding cylinder 73, the fingers 76 are unfolded to grip the outer layer current collector and the two layers of diaphragms and pass through the roller mechanism 6, ready to carry out The current collector is completely separated.

As shown in Figure 5, the roller mechanism 6 includes a lower roller fixing plate 61 and an upper roller fixing plate 65, the lower roller fixing plate 61 is arranged on the operating platform 1, and the lower roller fixing plate 61 is provided with a lower roller The shaft 62, the lower roller motor 63 and the lower roller connecting plate 64; the upper roller fixing plate 65 is arranged on the lower roller fixing plate 61, and the upper roller fixing plate 65 is successively provided with an upper roller guide rail 66, an upper The roller connecting plate 67 and the upper roller 68 ; the upper roller 68 is located above the lower roller 62 , and the peeling and unfolding mechanism 7 is movably installed between the upper roller 68 and the lower roller 62 .

As shown in Figure 4, the separation mechanism 5 includes a separation fixing plate 51, a separation guide rail 52, a separation guide rail connector 53 and a separation finger 54 connected in sequence. layer current collector to prevent the inner layer current collector from entering the roller mechanism 6.

When the lithium battery cell 46 is peeled off by the peeling and unfolding mechanism 7 and unfolded to a certain length, the unfolded outer current collector and two layers of diaphragms enter between the upper roller 68 and the lower roller 62, and the upper roller 68 moves along the guide rail of the upper roller. 66 Move down until the outer current collector and the two-layer diaphragm are pressed, and at this time, the unfolding fingers 76 of the peeling and unfolding mechanism 7 loosen the clamped outer current collector and the two-layer diaphragm, and the lower roller 62 is driven by the lower roller motor 63. Driven to rotate at a certain speed, the outer current collector is continuously expanded, and the expanded outer current collector and two layers of diaphragms enter the first recovery box (not shown) in the recovery mechanism 8, and the other inner Under the action of the separation finger 54, the layer current collector enters the second recovery box (not shown in the figure) in the recovery mechanism 8. So far, the disassembly of the lithium battery cell 46 is completed, and the current collector is recovered.

Specifically, the HF waste gas and coating dust produced by volatilization during the dismantling and separation of the lithium battery cell 46 are discharged from the exhaust pipeline (not shown in the figure), enter the exhaust gas treatment mechanism 9, and are discharged into the exhaust gas treatment mechanism 9 after greening treatment atmosphere.

The specific method steps of the lithium battery cell collector fluid recovery device provided by the utility model are as follows:

S10, using the feeding mechanism 2 and the transmission mechanism 3 to transport the lithium battery cell 46 to the clamping and rotating mechanism 4;

S20, using the cell clamping rod 45 of the clamping rotation mechanism 4 to clamp the lithium battery cell 46 and drive the lithium battery cell 46 to rotate;

S30. Make the end of the unfolding finger 76 of the peeling and unfolding mechanism 7 abut against the outside of the lithium battery cell 46, cooperate with the rotating motor 44 of the clamping and rotating mechanism 4 to realize the stripping of the current collector, and drive the outer layer of the current collector to unfold, so that the outer layer The layer current collector enters between the upper roller 68 and the lower roller 62 of the roller mechanism 6;

S40, make the separation finger 54 of the separation mechanism 5 abut against the inner layer current collector, so as to prevent the inner layer current collector from entering the roller mechanism 6;

S50. Use the recovery mechanism 8 to recover the stripped outer layer current collector and the inner layer current collector. Specifically, use the first recovery box to recover the outer layer current collector, and use the second recovery box to recover the inner layer current collector;

S60. Utilize the tail gas treatment mechanism 9 to process the waste gas and dust generated by the current collector recovery device.

In summary, the utility model utilizes the mutual cooperation of the clamping and rotating mechanism 4, the peeling and unfolding mechanism 7, and the separation mechanism 5, so that the current collector of the lithium battery cell 46 is stripped, and at the same time, the outer current collector and the inner layer current collector are separated. The fluid can be recovered along different paths, realizing that the positive and negative current collectors (i.e. the outer current collector and the inner layer current collector) can be automatically disassembled separately, with a high degree of automation, and can be used for various specifications of waste cylindrical lithium battery current collectors Recycle.

Apparently, the above-mentioned embodiments of the present utility model are only examples for clearly illustrating the present utility model, rather than limiting the implementation manner of the present utility model. For users of ordinary skill in the art, other changes or changes in different forms can also be made on the basis of the above description. It is not necessary and impossible to exhaustively list all the implementation manners here. All modifications, equivalent replacements and improvements made within the spirit and principles of the utility model shall be included in the protection scope of the claims of the utility model.

Claims (8)

1. a kind of lithium battery collector retracting device, the collector include outer layer collector and internal layer collector, feature exists In the collector retracting device includes for lithium battery electric core (46) to be clamped and the lithium battery electric core (46) can be driven to rotate Clamping rotating mechanism (4), the collector for removing the lithium battery electric core (46) and the outer layer collector exhibition can be driven The stripping unfolding mechanism (7) opened, the roller mechanism (6) for making the outer layer collector be fully deployed and described for stopping Internal layer collector enters the separating mechanism (5) of the roller mechanism (6)；

The clamping rotating mechanism (4) and the separating mechanism (5) are set to the same side of the roller mechanism (6), the stripping From the inside that unfolding mechanism (7) is movably arranged in the roller mechanism (6).

2. lithium battery collector retracting device according to claim 1, which is characterized in that further include for supplying the lithium It is the feed mechanism (2) of battery battery core (46), described for the lithium battery electric core (46) to be transported to by the feed mechanism (2) The transport mechanism (3) at rotating mechanism (4) is clamped, for recycling the outer layer collector and the internal layer collector after removing Recovering mechanism (8) and tail gas processing mechanism (9) for handling exhaust gas and dust that the collector retracting device generates；

It is the feed mechanism (2), the transport mechanism (3), the clamping rotating mechanism (4), the separating mechanism (5), described Roller mechanism (6) and the stripping unfolding mechanism (7) are respectively positioned on operating platform (1)；

The recovering mechanism (8) and the tail gas processing mechanism (9) are respectively positioned under the operating platform (1).

3. lithium battery collector retracting device according to claim 2, which is characterized in that the feed mechanism (2) includes Vibrating disk (21), slideway (22) and slideway supporting rack (23), the vibrating disk (21) and the slideway supporting rack (23) are respectively provided with In on the operating platform (1), the discharge port of the vibrating disk (21) is connect with one end of the slideway (22), the slideway (22) the other end is connect with the transport mechanism (3), and the slideway supporting rack (23) is located at below the slideway (22).

4. lithium battery collector retracting device according to claim 2, which is characterized in that the clamping rotating mechanism (4) Including sequentially connected horicontal motion mechanism (41), motion couplings (42), vertical and straight movement mechanism (43), gripper cylinder (47), Electric rotating machine (44) and for be clamped the lithium battery electric core (46) battery core be clamped stick (45), the horicontal motion mechanism (41) On the operating platform (1), the electric rotating machine (44) drives the battery core clamping stick (45) to rotate.

5. lithium battery collector retracting device according to claim 4, which is characterized in that the roller mechanism (6) includes：

Lower roller bearing fixed plate (61) is set on the operating platform (1), and the lower roller bearing fixed plate (61) is equipped with lower rolling Axis (62), lower roller motor (63) and lower roller bearing connecting plate (64)；

Upper roller bearing fixed plate (65), be set to the lower roller bearing fixed plate (61) on, and on the upper roller bearing fixed plate (65) according to It is secondary to be equipped with upper roller bearing guide rail (66), upper roller bearing connecting plate (67) and upper roller bearing (68)；

The upper roller bearing (68) is located above the lower roller bearing (62), and the stripping unfolding mechanism (7) is movably arranged in institute It states between roller bearing (68) and the lower roller bearing (62).

6. lithium battery collector retracting device according to claim 5, which is characterized in that the stripping unfolding mechanism (7) Including sequentially connected stripping expansion guide rail (71), stripping expansion connector (72), stripping expansion cylinder (73), cylinder connection piece (74), Pneumatic clamping jaw (75) and expansion finger (76), the stripping expansion guide rail (71) are located on the operating platform (1), institute Stating the end of expansion finger (76) can abut on the outside of the lithium battery electric core (46) being clamped to battery core clamping stick (45), coordinate institute It states electric rotating machine (44) and realizes the stripping of the collector, and the outer layer collector is driven to be unfolded, make the outer layer collector Between the upper roller bearing (68) and the lower roller bearing (62).

7. lithium battery collector retracting device according to claim 6, which is characterized in that the separating mechanism (5) includes Sequentially connected separation fixed plate (51), separation rail (52), separation rail connector (53) and separation finger (54), described point It is located on the operating platform (1) from fixed plate (51), the separation finger (54) can abut to the internal layer collector, with Stop that the internal layer collector enters the roller mechanism (6).

8. lithium battery collector retracting device according to claim 2, which is characterized in that the recovering mechanism (8) includes：

First recycling bins offer the first recovery port at position corresponding with the operating platform (1) thereon, described for recycling Outer layer collector；

Second recycling bins offer the second recovery port at position corresponding with the operating platform (1) thereon, described for recycling Internal layer collector.