Lithium battery processing equipment and lithium battery processing method

Abstract

The invention belongs to the technical field of lithium battery processing, and particularly relates to lithium battery processing equipment and a lithium battery processing method.The lithium battery processing equipment comprises a fixing rod, a sliding part is slidably connected to the fixing rod, a stirring part is rotatably connected to the sliding part, a transmission ring is fixedly connected to the stirring part, and a plurality of arc-shaped blocks are fixedly connected to the transmission ring; a first pressure spring is fixedly connected between the sliding part and the fixed rod, a stirring paddle is detachably connected to the stirring part through a bolt, and an L-shaped rod is connected to the fixed rod. The method comprises the following steps: step 1, fixing a fixed rod and a fixed block by screwing bolts into a plurality of fixed threaded holes, connecting the device to a container filled with a positive or negative electrode material to be mixed, inserting a stirring paddle on a stirring part into the inner position of the container, and performing multi-track stirring operation, the stirring and mixing efficiency of the raw materials is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of lithium battery processing, and in particular relates to lithium battery processing equipment and a lithium battery processing method. Background Art

[0002] Lithium battery is a battery that uses lithium metal or lithium alloy as the negative electrode material and a non-aqueous electrolyte solution. As a modern high-performance rechargeable battery, lithium battery plays an important role in various fields. Therefore, the demand for lithium batteries in the prior art is increasing day by day. In order to meet the increasing demand for lithium batteries, the methods and equipment related to the preparation of lithium batteries in the prior art are also constantly improved.

[0003] In the process of preparing lithium batteries, it is necessary to go through batching, coating, sheeting, winding, shelling, baking and liquid injection operations to form a finished battery. Batching refers to the sequential addition of positive or negative electrode raw materials in the lithium battery, followed by stirring to evenly mix the raw materials, thereby forming a positive or negative electrode slurry that can be subsequently coated. However, in the prior art, only a single-track rotation stirring operation can be performed during stirring and mixing, and the stirring and mixing efficiency of the raw materials is low, which affects the subsequent preparation efficiency. Summary of the invention

[0004] In view of this, the technical problem to be solved by the present invention is to provide a lithium battery processing device and a lithium battery processing method, which can perform multi-track stirring operations and improve the stirring and mixing efficiency of raw materials.

[0005] A lithium battery processing device comprises a fixed rod, a sliding part is slidably connected to the fixed rod, a stirring part is rotatably connected to the sliding part, a transmission ring is fixedly connected to the stirring part, a plurality of arc-shaped blocks are fixedly connected to the transmission ring, a first compression spring is fixedly connected between the sliding part and the fixed rod, a stirring paddle is detachably connected to the stirring part via bolts, an L-shaped rod is connected to the fixed rod, a movable seat is slidably connected to the L-shaped rod, an oblique rod is connected to the movable seat, and the oblique rod can contact the transmission ring.

[0006] The L-shaped rod is slidably connected to the fixed rod, and a second compression spring is fixedly connected between the L-shaped rod and the fixed rod.

[0007] It also includes a fixed block, which is slidably connected to an auxiliary part, on which two cylindrical rods are fixedly connected, and a rectangular slot is opened on the L-shaped rod, into which the auxiliary part can be inserted, and a disc is fixedly connected to the sliding part, which can be accurately inserted between the two cylindrical rods.

[0008] A positioning inclined plate is fixedly connected to each of the cylindrical rods.

[0009] It also includes an arc panel fixedly connected to the auxiliary part, and a groove is arranged on the auxiliary part.

[0010] The lithium battery processing equipment is used in a processing method for processing lithium batteries, and the method comprises the following steps:

[0011] Step 1: Fix the fixing rod and the fixing block by screwing bolts into a plurality of fixing threaded holes, connect the device to a container containing the positive or negative electrode material to be mixed, and enable the stirring paddle on the stirring part to be inserted into the position inside the container;

[0012] Step 2: operate the stirring part to continuously slide on the sliding part, and periodically slide the moving seat on the L-shaped rod;

[0013] Step 3: Regularly rotate the diagonal rod on the moving seat for one circle;

[0014] Step 4: Regularly operate the auxiliary part to slide back and forth to the right on the fixed block once;

[0015] Step 5: Take out the mixed slurry for subsequent coating, sheeting, winding, shelling, baking and liquid injection operations to form a finished battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0017] Figure 1 It is a structural schematic diagram of the sliding part;

[0018] Figure 2 is a structural schematic diagram of a fixed rod;

[0019] Figure 3 It is a structural schematic diagram of the transmission ring;

[0020] Figure 4 It is a structural schematic diagram of the mobile seat;

[0021] Figure 5 It is a structural diagram of the auxiliary part;

[0022] Figure 6 It is a schematic diagram of the structure of the L-shaped rod;

[0023] Figure 7 is a schematic diagram of the structure of the compression rod;

[0024] Figure 8 and Fig. 9 The figure is a schematic diagram of the overall structure of a lithium battery processing equipment. DETAILED DESCRIPTION

[0025] like Figure 1-4 As shown:

[0026] A lithium battery processing device comprises a fixed rod 201, a sliding part 101 is slidably connected to the fixed rod 201, a stirring part 102 is rotatably connected to the sliding part 101, a transmission ring 103 is fixedly connected to the stirring part 102, a plurality of arc blocks 104 are fixedly connected to the transmission ring 103, a first compression spring is fixedly connected between the sliding part 101 and the fixed rod 201, a stirring paddle is detachably connected to the stirring part 102 via bolts, an L-shaped rod 301 is connected to the fixed rod 201, a moving seat 302 is slidably connected to the L-shaped rod 301, an oblique rod 303 is connected to the moving seat 302, the oblique rod 303 can contact the transmission ring 103, a first motor capable of driving the stirring part 102 to rotate is fixedly connected to the sliding part 101, and a first electric push rod capable of driving the moving seat 302 to slide is fixedly connected to the L-shaped rod 301.

[0027] The device is connected to a container containing positive or negative electrode materials to be mixed, and the stirring paddle on the stirring part 102 is inserted into a position inside the container. Then, the first motor is started, and the output shaft of the first motor drives the stirring part 102 to rotate, so that the stirring paddle on the stirring part 102 continuously stirs the materials in the container, so that the materials are uniformly contacted and mixed with each other, thereby forming the positive or negative electrode materials required for subsequent production. During the operation of the stirring part 102, the oblique rod 303 is moved to a position where it can contact with the transmission ring 103. During the rotation of the stirring part 102, the stirring part 102 automatically drives the transmission ring 103 to rotate synchronously with the stirring part 102. At this time, the transmission ring 103 will continue to contact with the oblique rod 303. When the transmission ring 103 is in contact with the oblique rod 303, the transmission ring 103 will be in contact with the oblique rod 303. After rotating until one of the multiple arc blocks 104 contacts the oblique rod 303, when one of the arc blocks 104 on the transmission ring 103 contacts the oblique rod 303, the continuously rotating transmission ring 103 causes the oblique rod 303 to press the arc block 104 so that the sliding part 101 overcomes the elastic force of the first compression spring and slides in the vertical direction. When the arc block 104 is staggered from the oblique rod 303, the sliding part 101 slides upward smoothly to reset. Then, through the cooperation of the oblique rod 303 and the multiple arc blocks 104, the stirring part 102 can vibrate up and down reciprocatingly during the rotation process, thereby providing a more varied stirring trajectory for the material, so that the material can be further evenly contacted and mixed, and the mixing effect of the material is improved;

[0028] During actual use, the movable seat 302 can also be operated regularly to slide on the L-shaped rod 301 to adjust the position of the oblique rod 303. Due to the inclined setting of the oblique rod 303, the oblique rod 303 can press the stirring part 102 to perform subsequent reciprocating up and down vibration operations at different initial heights, thereby further enriching the stirring trajectory of the stirring part 102, enabling the stirring part 102 to perform more efficient material mixing operations, further improving the subsequent stirring and mixing efficiency, and achieving the purpose of efficiently completing the mixing operation.

[0029] like Figure 3 As shown:

[0030] The L-shaped rod 301 is slidably connected to the fixing rod 201 , and a second compression spring is fixedly connected between the L-shaped rod 301 and the fixing rod 201 .

[0031] When the oblique rod 303 cooperates with the plurality of arc blocks 104 to make the stirring part 102 vibrate up and down, the L-shaped rod 301 is fixed on the fixed rod 201 to ensure the subsequent shaking effect of the oblique rod 303. In the subsequent stirring and mixing process, the fixing effect of the L-shaped rod 301 can be removed regularly, and then the slidable sliding part 101 is fixed. At this time, the continuously rotating stirring part 102 will make the plurality of arc blocks 104 shake the oblique rod 303, so that the L-shaped rod 301 will slide up and down on the fixed rod 201. At this time, the rotation rate of the transmission ring 103 can be measured by monitoring the reciprocating sliding frequency of the L-shaped rod 301, and then the rotation speed of the stirring part 102 can be tested to determine whether it meets the required rate of the target production, so as to accurately grasp the stirring rate of the stirring paddle, and adjust it in time when the rate is too fast or too slow, so as to ensure the subsequent particle size and viscosity of the slurry, and further ensure the subsequent preparation effect;

[0032] In actual use, a displacement sensor can be connected to the fixed rod 201 by tightening bolts, and subsequent monitoring can be completed by fixing the moving end of the displacement sensor to the L-shaped rod 301. When the L-shaped rod 301 slides, the displacement sensor can obtain a signal, thereby timely knowing the sliding frequency of the L-shaped rod 301, so as to accurately grasp the stirring rate of the stirring paddle.

[0033] like Figure 3-6 As shown:

[0034] It also includes a fixed block 401, which is slidably connected to an auxiliary part 402, and two cylindrical rods 405 are fixedly connected to the auxiliary part 402. A rectangular slot is opened on the L-shaped rod 301, and the auxiliary part 402 can be inserted into the rectangular slot. A disc is fixedly connected to the sliding part 101, and the disc can be accurately inserted between the two cylindrical rods 405. A second electric push rod that can push the auxiliary part 402 to slide is fixedly connected to the fixed block 401.

[0035] Under normal circumstances, the auxiliary part 402 is inserted into the rectangular slot, thereby fixing the L-shaped rod 301, so that the L-shaped rod 301 cannot slide in the vertical direction, thereby ensuring the stable transmission effect between the subsequent oblique rod 303 and the multiple arc blocks 104. When it is necessary to determine whether the rotation speed of the stirring part 102 meets the target requirements, the auxiliary part 402 is slid on the fixing block 401, and then the auxiliary part 402 is pulled out of the rectangular slot, and the disc on the sliding part 101 gradually enters the space between the two cylindrical rods 405. At this time, the two cylindrical rods 405 can fix the sliding part 101, and then the fixing effect of the sliding part 101 is achieved while removing the fixing effect of the L-shaped rod 301, which provides convenience for the subsequent transmission of the L-shaped rod 301 to slide up and down for speed measurement.

[0036] like Figure 5 As shown:

[0037] A positioning inclined plate 406 is fixedly connected to each of the cylindrical rods 405 .

[0038] The two positioning inclined plates 406 are arranged so that during the sliding process of the auxiliary part 402, the two positioning inclined plates 406 can automatically position the disc, so that the disc is smoothly pushed and slid between the two cylindrical rods 405 by the two positioning inclined plates 406, thereby facilitating the subsequent automatic fixing effect of the sliding part 101.

[0039] like Figure 5 As shown:

[0040] The structure further comprises a curved panel 404 fixedly connected to the auxiliary portion 402 , and a groove 403 is formed on the auxiliary portion 402 .

[0041] When the auxiliary part 402 is inserted into the rectangular notch on the L-shaped rod 301 to fix the L-shaped rod 301, the auxiliary part 402 can be continuously operated to slide to the left. When the auxiliary part 402 slides to the arc plate 404 and contacts the L-shaped rod 301, the arc plate 404 will actively push the L-shaped rod 301 to slide downward. During this process, if the displacement sensor is in a normal working state, the displacement sensor will successfully obtain the signal. On the contrary, if the displacement sensor does not obtain the signal in time, it proves that the displacement sensor has a fault, and then the fault is discovered in time, so that the displacement sensor can be replaced or repaired in time to ensure the accuracy of subsequent measurement results.

[0042] The arrangement of the groove 403 enables the groove 403 to make room for the L-shaped rod 301 to slide downward, thereby facilitating the subsequent sliding operation of the L-shaped rod 301 .

[0043] like Figure 6 As shown:

[0044] The oblique rod 303 is rotatably connected to the moving base 302 , and a third motor capable of driving the oblique rod 303 to rotate is fixedly connected to the moving base 302 .

[0045] In actual use, the oblique rod 303 can be operated to continuously rotate on the moving seat 302, so that the oblique rod 303 pushes the transmission ring 103 downward for a long distance, and then when the oblique rod 303 is separated from the transmission ring 103, the stirring part 102 will quickly slide upward to reset, thereby further enriching the stirring action of the stirring part 102 and improving the stirring and mixing effect of the material;

[0046] Meanwhile, if the movable seat 302 cannot slide normally during actual use, the inclined rod 303 can be slightly rotated to temporarily replace the sliding operation of the movable seat 302 to drive the transmission ring 103 to move, thereby ensuring stable processing operations.

[0047] like Figure 3 As shown:

[0048] It also includes a pressing rod 202 slidably connected to the fixing rod 201 , and a third electric push rod is fixedly connected to the fixing rod 201 and can drive the pressing rod 202 to slide.

[0049] In actual use, if the movable seat 302 cannot slide and the oblique rod 303 cannot rotate on the movable seat 302, the pressure rod 202 can be operated to slide on the fixed rod 201, and then the pressure rod 202 can be used to actively press the sliding part 101 to slide, thereby further ensuring the stability of subsequent processing operations.

[0050] As shown in 6:

[0051] Arc chamfers are formed on both the upper and lower sides of the disc on the sliding part 101 .

[0052] The setting of the arc chamfer allows the disc to be smoothly moved after the two positioning inclined plates 406 come into contact with the disc, so that the sliding part 101 can slide adaptively on the fixed rod 201, and the disc can be smoothly moved between the two cylindrical rods 405, providing convenience for the subsequent fixed sliding part 101 operation.

[0053] like Figure 8-9 As shown:

[0054] The fixing rod 201 and the fixing block 401 are provided with a plurality of fixing threaded holes.

[0055] The fixing rod 201 and the fixing block 401 can be fixed by screwing bolts into a plurality of fixing threaded holes, thereby fixing the entire device and completing subsequent processing operations.

[0056] The lithium battery processing equipment is used in a processing method for processing lithium batteries, and the method comprises the following steps:

[0057] Step 1: Fix the fixing rod 201 and the fixing block 401 by screwing bolts into a plurality of fixing threaded holes, and insert the stirring paddle connected to the stirring part 102 of the device into the container containing the positive electrode or negative electrode material to be mixed;

[0058] Step 2: operate the stirring part 102 to slide continuously on the sliding part 101, and periodically make the moving seat 302 slide on the L-shaped rod 301;

[0059] Step 3: Regularly rotate the oblique rod 303 on the moving seat 302 for one circle;

[0060] Step 4: Regularly operate the auxiliary part 402 to slide back and forth rightward on the fixed block 401 once;

[0061] Step 5: Take out the mixed slurry for subsequent coating, sheeting, winding, shelling, baking and liquid injection operations to form a finished battery.

Claims

1. A lithium battery processing equipment, characterized in that: The invention comprises a fixed rod (201), a sliding part (101) is slidably connected to the fixed rod (201), a stirring part (102) is rotatably connected to the sliding part (101), a transmission ring (103) is fixedly connected to the stirring part (102), a plurality of arc-shaped blocks (104) are fixedly connected to the transmission ring (103), a first compression spring is fixedly connected between the sliding part (101) and the fixed rod (201), a stirring paddle is detachably connected to the stirring part (102) via bolts, an L-shaped rod (301) is connected to the fixed rod (201), a movable seat (302) is slidably connected to the L-shaped rod (301), an oblique rod (303) is connected to the movable seat (302), and the oblique rod (303) is capable of contacting the transmission ring (103).

2. A lithium battery processing equipment according to claim 1, characterized in that: The L-shaped rod (301) is slidably connected to the fixed rod (201), and a second compression spring is fixedly connected between the L-shaped rod (301) and the fixed rod (201).

3. A lithium battery processing equipment according to claim 2, characterized in that: The device also comprises a fixed block (401), an auxiliary part (402) is slidably connected to the fixed block (401), two cylindrical rods (405) are fixedly connected to the auxiliary part (402), a rectangular notch is provided on the L-shaped rod (301), the auxiliary part (402) can be inserted into the rectangular notch, and a disc is fixedly connected to the sliding part (101), and the disc can be accurately inserted between the two cylindrical rods (405).

4. A lithium battery processing equipment according to claim 3, characterized in that: A positioning inclined plate (406) is fixedly connected to each of the cylindrical rods (405).

5. A lithium battery processing equipment according to claim 4, characterized in that: It also includes an arc panel (404) fixedly connected to the auxiliary part (402), and a groove (403) is provided on the auxiliary part (402).

6. A lithium battery processing equipment according to claim 5, characterized in that: The oblique rod (303) is rotatably connected to the movable seat (302).

7. A lithium battery processing equipment according to claim 6, characterized in that: It also includes a pressing rod (202) slidably connected to the fixing rod (201).

8. The lithium battery processing equipment according to claim 3, characterized in that: Arc chamfers are provided on both the upper and lower sides of the disc on the sliding part (101).

9. The lithium battery processing equipment according to claim 3, characterized in that: The fixing rod (201) and the fixing block (401) are provided with a plurality of fixing threaded holes.

10. The method for processing lithium batteries using a lithium battery processing device according to claim 7, characterized in that: The method comprises the following steps: Step 1: Fix the fixing rod (201) and the fixing block (401) by screwing bolts into a plurality of fixing threaded holes, connect the device to a container containing positive or negative electrode materials to be mixed, and enable the stirring paddle on the stirring part (102) to be inserted into a position inside the container; Step 2: operating the stirring part (102) to continuously slide on the sliding part (101), and periodically making the moving seat (302) slide on the L-shaped rod (301); Step 3: Regularly rotate the oblique rod (303) on the moving seat (302) for one circle; Step 4: Regularly operate the auxiliary part (402) to slide back and forth to the right on the fixed block (401) once; Step 5: Take out the mixed slurry for subsequent coating, sheeting, winding, shelling, baking and liquid injection operations to form a finished battery.

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