Cylindrical battery roll core back-rolling device

Abstract

The utility model relates to a cylindrical battery roll core back-rolling device which comprises a battery core placing station, a positive plate rolling device, a negative plate separating and rolling device and a purging device, and the purging device is arranged between the battery core placing station and the positive plate rolling device and is used for ensuring the purity of a positive plate; the negative electrode separating and winding device is positioned at the lower part of the battery cell placing station and is used for winding a diaphragm and accommodating a negative electrode plate; the device has the advantages of being stable and reliable in structure and capable of continuously completing back-rolling recovery in batches and solving cross contamination in the recovery process.

Description

TECHNICAL FIELD

[0001] The utility model belongs to cylindrical battery technical field, specifically related to a cylindrical battery roll core unwinding device. BACKGROUND

[0002] The current cylindrical battery roll core unwinding equipment has complex structure, high failure rate and low production capacity, and cannot complete the recovery of battery roll core unwinding recovery on a large scale. Moreover, the current technology still has great defects in man-machine combination, and the equipment has poor reliability. In view of the aging, damage and other conditions of the separator and the pole piece in the scrapped battery, the scrapped battery cannot be effectively identified and disposed, and the unwinding recovery of the scrapped battery cannot be continuously completed. In addition, the positive and negative pole pieces are cross-contaminated during the unwinding process, and the current technology has not solved this problem well. Therefore, it is necessary to provide a cylindrical battery roll core unwinding device which has stable and reliable structure, can continuously complete the unwinding recovery in batches, and solves the cross-contamination in the recovery process. SUMMARY

[0003] The utility model discloses a cylindrical battery roll core unwinding device which has stable and reliable structure, can continuously complete the unwinding recovery in batches, and solves the cross-contamination in the recovery process.

[0004] The utility model discloses a cylindrical battery roll core unwinding device which has stable and reliable structure, can continuously complete the unwinding recovery in batches, and solves the cross-contamination in the recovery process.

[0005] The core placement station includes a rotating opening and closing roller, which is located at the lower end of the core placement station and can rotate and open and close. The rotating opening and closing roller is used to connect the positive pole piece of the battery to the positive pole piece winding device.

[0006] The positive pole piece winding device includes a clamping shaft and a positive pole piece storage box. The clamping shaft can rotate and open and close, and is used to wind or loosen the positive pole piece. The positive pole piece storage box is located below the positive pole piece winding device and is used to collect the wound positive pole piece.

[0007] The negative pole piece automatic separation device below is provided with a negative pole piece storage box.

[0008] The separator winding device includes a first separator winding device and a second separator winding device, which are symmetrically arranged on both sides of the negative pole piece automatic separation device.

[0009] The diaphragm storage box includes a first diaphragm storage box and a second diaphragm storage box. The first diaphragm storage box and the second diaphragm storage box are symmetrically arranged on both sides of the automatic negative electrode separation device and correspond one-to-one with the first diaphragm winding device and the second diaphragm winding device, respectively.

[0010] The rotational speeds of the rotating opening and closing roller, the clamping shaft, the first diaphragm winding device, and the second diaphragm winding device can all be adjusted individually to achieve a coordinated effect.

[0011] The wind force and blowing angle of the purging device can be adjusted.

[0012] The beneficial effects of this utility model are as follows: This utility model is a cylindrical battery core rewinding device. In use, this utility model has a stable and reliable structure, high production capacity, and can continuously complete the rewinding and recycling of scrap batteries in batches. The battery cell disassembly device, as well as the electrode and separator separation and rewinding device of this utility model are reasonably designed. In view of the brittle characteristics of the electrode and separator of scrap batteries, the structural design is optimized to ensure the continuous and stable rewinding and recycling of individual battery cells. This utility model solves the problem of cross-contamination between positive and negative electrodes that may occur during the rewinding and recycling of scrap battery cells. This utility model has the advantages of stable and reliable structure, continuous batch rewinding and recycling, and solving the problem of cross-contamination in the recycling process. Attached Figure Description

[0013] Figure 1 This is a schematic diagram illustrating the layout and working principle of a cylindrical battery core rewinding device according to this utility model.

[0014] In the diagram: 1. Cell placement station 1-1, Rotating opening and closing roller 2. Positive electrode sheet winding device 2-1, Clamping shaft 2-2, Positive electrode sheet storage box 3. Negative electrode separation and winding device 3-1, Automatic negative electrode sheet separation device 3-2, First diaphragm winding device 3-3, Second diaphragm winding device 3-4, Negative electrode sheet storage box 3-5, First diaphragm storage box 3-6, First diaphragm storage box 4. Blowing device. Detailed Implementation

[0015] The present invention will be further described below with reference to the accompanying drawings. Example

[0016] like Figure 1 As shown, a cylindrical battery core rewinding device includes a cell placement station 1, a positive electrode winding device 2, a negative electrode separation and winding device 3, and a purging device 4. The purging device 4 is disposed between the cell placement station 1 and the positive electrode winding device 2 to ensure the purity of the positive electrode. The negative electrode separation and winding device 3 is located at the lower part of the cell placement station 1 and is used for separator winding and negative electrode storage.

[0017] The utility model has the following advantages: simple and reliable equipment structure, low failure rate, high productivity, and the function of batch reverse winding recovery of battery core can be realized.

[0018] The positive and negative cross-contamination problem in the battery core recovery process is solved, the positive plate is ensured to be pure and free from impurity pollution through the positive plate purging device, and the fine level of the battery core recovery as a whole is improved, thereby eliminating the hidden danger of impurity pollution for subsequent positive material recovery.

[0019] The utility model discloses a cylindrical battery winding core reverse winding device, which is stable and reliable in structure, has high productivity and can continuously and batchedly complete the reverse winding recovery of the scrapped battery. Embodiment

[0020] As Figure 1 shown, a cylindrical battery winding core reverse winding device comprises a battery core placing station 1, a positive plate winding device 2, a negative separation and winding device 3 and a purging device 4.

[0021] In the embodiment, the utility model is composed of four parts, namely the battery core placing station, the positive plate winding, the negative separation and winding and the purging device.

[0022] The roller 1-1 at the lower end of the battery core placing station 1 is rotatable and can be opened and closed.

[0023] After the battery positive plate is separated, it is connected to the positive plate winding device 2.

[0024] During the winding of the positive plate, the purging device 4 is used to blow dry air to the residual electrolyte or the adhered negative powder on the positive plate to ensure the purity of the positive plate.

[0025] After the battery separator and the negative electrode sheet are separated, the three separated parts are sent to the separator winding device 3-2 / 3-3, and the negative electrode sheet is automatically dropped into the negative electrode sheet storage box 3-4; the roller of the separator winding device 3-2 / 3-3 also has rotation and opening and closing functions, and after the winding of the separator is completed, the separator roll is loosened and placed in the separator storage box 3-5 / 3-6;

[0026] The roller and the clamping rod of the rotating opening and closing roller 1-1, the material clamping shaft 2-1, the first separator winding device 3-2 and the second separator winding device 3-3 are made of ground PTFE, nylon (PA) and polystyrene (PS), which can increase the friction and resist acid and alkali corrosion, so that the electrolyte and the positive and negative electrode materials in the waste battery do not corrode the contact surface and damage the equipment.

[0027] The rotation speed of the roller and the clamping rod of the rotating opening and closing roller 1-1, the material clamping shaft 2-1, the first separator winding device 3-2 and the second separator winding device 3-3 can be adjusted independently to achieve mutual cooperation, so that the separator and the positive and negative electrode sheets can be wound on the respective rollers at a suitable speed after being separated from the battery, preventing the electrode sheets and the separator from being broken.

[0028] The air blowing device 4 can adjust the air blowing angle and the air blowing angle to achieve better blowing effect and prevent the positive electrode sheet from being broken due to excessive air blowing or incorrect blowing angle.

[0029] In summary, the combination of the battery cell placement station and the roller realizes the functions of fixed placement of the battery cell and separation of the separator and the electrode sheet.

[0030] The clamping rod of the winding device can rotate, open and close, and the rotation speed can be adjusted, effectively realizing the core function of unwinding the separator and the electrode sheet.

[0031] The blowing device is designed to effectively reduce the electrolyte and the negative electrode powder adhered to the positive electrode sheet, thereby improving the purity of the recovered positive electrode sheet.

[0032] The cylindrical battery core unwinding device has stable and reliable structure, high production capacity and can continuously and batchwise complete the unwinding and recovery of the scrapped battery; the battery cell disassembling device, the separation of the electrode sheet and the separator and the rewinding device have reasonable design, the structure is optimized according to the characteristics of the brittle fracture of the electrode sheet and the separator of the scrapped battery, and the continuous and stable unwinding and recovery of the single battery cell are ensured; the positive and negative electrode cross contamination problem in the unwinding and recovery process of the scrapped battery cell is solved; the cylindrical battery core unwinding device has the advantages of stable and reliable structure, continuous and batchwise unwinding and recovery and solving of the cross contamination problem in the recovery process.

Claims

1. A cylindrical battery roll core unwinding device, characterized by: The application relates to a battery cell placing station, a positive electrode sheet winding device, a negative electrode separating and winding device and a blowing device.

2. The cylindrical battery roll core unwinding device according to claim 1, characterized in that: The battery cell placing station comprises a rotating opening and closing roller, which is located at the lower end of the battery cell placing station and can rotate and open and close, and is used for connecting the positive electrode sheet to the positive electrode sheet winding device.

3. The cylindrical battery roll core unwinding device according to claim 2, characterized in that: The positive electrode sheet winding device comprises a clamping shaft and a positive electrode sheet storage box, the clamping shaft can rotate and open and close, and is used for winding or loosening the positive electrode sheet; the positive electrode sheet storage box is located below the positive electrode sheet winding device and is used for collecting the wound positive electrode sheet.

4. The cylindrical battery roll core unwinding device according to claim 3, characterized in that: The negative electrode separating and winding device comprises a negative electrode sheet automatic separating device, a diaphragm winding device and a diaphragm storage box, and the negative electrode sheet automatic separating device is provided with the negative electrode sheet storage box below.

5. The cylindrical battery roll core unwinding device according to claim 4, characterized in that: The diaphragm winding device comprises a first diaphragm winding device and a second diaphragm winding device, and the first diaphragm winding device and the second diaphragm winding device are symmetrically arranged on the two sides of the negative electrode sheet automatic separating device.

6. The cylindrical battery roll core unwinding device according to claim 5, characterized in that: The diaphragm storage box comprises a first diaphragm storage box and a second diaphragm storage box, and the first diaphragm storage box and the second diaphragm storage box are symmetrically arranged on the two sides of the negative electrode sheet automatic separating device and correspond to the first diaphragm winding device and the second diaphragm winding device respectively.

7. The cylindrical battery roll core unwinding device according to claim 5, characterized in that: The rotating speed of the rotating opening and closing roller, the clamping shaft, the first diaphragm winding device and the second diaphragm winding device can be individually adjusted to achieve the effect of mutual cooperation.

8. The cylindrical battery roll core unwinding device according to claim 1, characterized in that: The blowing device can adjust the wind power and the blowing angle.

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