High-temperature-resistant lithium battery diaphragm coating device

Abstract

The utility model discloses a high-temperature-resistant lithium battery diaphragm coating device, which relates to the technical field of lithium battery diaphragm coating equipment and particularly comprises a box body, a slurry box is arranged at the bottom of the inner wall of the box body, a feeding pipe is arranged at the top of the slurry box, the other end of the feeding pipe extends to the outside of the box body, and a stirring rod is rotationally arranged in the slurry box. A stirring motor is fixed to the top of the slurry box, and an output shaft of the stirring motor extends into the slurry box and is fixedly connected with the top end of a stirring rod. According to the coating machine, the material collector, the input pipe and the box body are arranged, all the components are placed in the box body through the stacked design, the occupied area is smaller, materials collected by the material collector at the bottom of the coating machine directly enter the slurry box through the input pipe, manual material pouring is not needed due to the arrangement, and the coating machine is convenient to use. And the effect that the materials in the material collector directly flow into the slurry box through the stacked design is achieved, and the problem that according to an existing recycling box, the materials need to be poured into a material barrel through manual operation is solved.

Description

Technical Field

[0001] The utility model relates to a lithium battery diaphragm coating device, in particular to a high temperature resistant lithium battery diaphragm coating device. Background Art

[0002] In the production of lithium batteries, a diaphragm is generally required. The main function of the diaphragm is to separate the positive and negative electrodes of the battery to prevent the positive and negative electrodes from directly contacting and short-circuiting. At the same time, it also allows the electrolyte ions to pass smoothly during the discharge process of the battery. Isolation is an important component in the battery. Existing lithium battery diaphragm materials need to be coated during production. The coating is to prevent the diaphragm from shrinking due to heat and improve the heat resistance of the diaphragm. However, after the coating operation using a coating machine, the excess slurry will drip onto the inner wall of the box. The existing method is to place the slurry in a recycling box for direct recycling and then manually pour it into the slurry barrel. The manual operation steps are complicated and increase labor and labor costs. Utility Model Content

[0003] The utility model aims to solve the problem that the existing recycling box needs manual operation to pour the material into the barrel.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A high-temperature resistant lithium battery diaphragm coating device comprises a box body, a slurry box is opened at the bottom of the inner wall of the box body, a feed pipe is arranged on the top of the slurry box, the other end of the feed pipe extends to the outside of the box body, a stirring rod rotates inside the slurry box, a stirring motor is fixed on the top of the slurry box, the output shaft of the stirring motor extends to the inside of the slurry box and is fixedly connected to the top of the stirring rod, an output pipe is fixed on the side of the slurry box near the bottom, a filter A is arranged at the other end of the output pipe, a diaphragm pump is connected to the output port of the filter A, the diaphragm pump is fixed on the box body, a connecting pipe is arranged on the output port of the diaphragm pump, a feed box is arranged on the connecting pipe, a coater is fixed at the bottom of the feed box, a receiver is arranged at the bottom of the coater, an input pipe is arranged at the bottom of the receiver, and the other end of the input pipe extends to the inside of the slurry box.

[0006] Preferably, the stirring rod comprises a rotating shaft and a side rod, and one end of the side rod away from the rotating shaft is tilted downward.

[0007] Preferably, one end of the feed pipe away from the slurry box is arranged to be inclined upward.

[0008] Preferably, the material receiver is funnel-shaped.

[0009] Preferably, a filter B is fixed on the inlet pipe, and both filter A and filter B are magnetic filters.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] By arranging a material receiver, an input pipe and a box body, and placing each component inside the box body through a stacking design, it occupies a smaller area, and the material collected by the material receiver at the bottom of the coating machine directly enters the slurry box through the input pipe. This arrangement does not require manual pouring of materials, and achieves the effect of the material inside the material receiver directly flowing into the slurry box through the stacking design, solving the problem that the existing recycling box needs to be manually poured into the material barrel. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the front cross-sectional structure of the position of the stirring rod and the slurry box in a high-temperature resistant lithium battery separator coating device.

[0013] Figure 2 It is a partial front cross-sectional structural schematic diagram of the feed pipe position in a high-temperature resistant lithium battery separator coating device. DETAILED DESCRIPTION

[0014] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0015] See also Figures 1-2 In the embodiment of the utility model, a high-temperature resistant lithium battery diaphragm coating device comprises a box body 1, a slurry box 2 is provided at the bottom of the inner wall of the box body 1, a feeding pipe 3 is arranged on the top of the slurry box 2, and the end of the feeding pipe 3 away from the slurry box 2 is tilted upward, so that the material can automatically slide into the slurry box 2 after entering the feeding pipe 3, and the other end of the feeding pipe 3 extends to the outside of the box body 1, and a stirring rod 4 is rotated inside the slurry box 2, and the stirring rod 4 includes a rotating shaft and a side rod, and the end of the side rod away from the rotating shaft is tilted downward, and a stirring motor 5 is fixed on the top of the slurry box 2, and the output shaft of the stirring motor 5 extends to the interior of the slurry box 2 and is fixedly connected to the top of the stirring rod 4, and the stirring motor 5 is started when needed. The stirring motor 5 is commonly used in the prior art and is also the prior art, which will not be described in detail here. After the stirring motor 5 is started, it drives the stirring rod 4 to rotate, and the stirring rod 4 rotates to stir and mix the material entering the slurry box 2.

[0016] An output pipe 6 is fixed to the side of the slurry box 2 near the bottom, and a filter A7 is arranged at the other end of the output pipe 6. A diaphragm pump 8 is connected to the output port of the filter A7, and the diaphragm pump 8 is fixed to the box body 1. A connecting pipe 9 is arranged on the output port of the diaphragm pump 8, and a feed box 10 is arranged on the connecting pipe 9. A coater 11 is fixed to the bottom end of the feed box 10, and a receiver 12 is arranged at the bottom of the coater 11. The receiver 12 is funnel-shaped, which is convenient for collecting materials and making them slide into the input pipe 13 in a concentrated manner. An input pipe 13 is arranged at the bottom of the receiver 12, and the input pipe 13 A filter B14 is fixed on it. Both filter A7 and filter B14 are magnetic filters, which magnetically absorb iron impurities in the filtered material. The other end of the input pipe 13 extends to the inside of the slurry box 2. During operation, the diaphragm pump 8 is started to pump the material from the inside of the slurry box 2 through the output pipe 6 and the connecting pipe 9 into the feed box 10. The material inside the feed box 10 then slides downward by its own gravity to the coater 11 for coating operation. The dripping material enters the receiver 12 for material collection operation, and then the material is filtered through the filter B on the input pipe 13 to remove metal impurities.

Claims

1. A high temperature resistant lithium battery diaphragm coating device, comprising a housing (1), It is characterized in that A slurry box (2) is provided at the bottom of the inner wall of the box body (1), a feed pipe (3) is provided at the top of the slurry box (2), the other end of the feed pipe (3) extends to the outside of the box body (1), a stirring rod (4) rotates inside the slurry box (2), a stirring motor (5) is fixed on the top of the slurry box (2), the output shaft of the stirring motor (5) extends to the inside of the slurry box (2) and is fixedly connected to the top of the stirring rod (4), an output pipe (6) is fixed on the side of the slurry box (2) near the bottom, and the other end of the output pipe (6) is A filter A (7) is provided at the end, the output port of the filter A (7) is connected to a diaphragm pump (8), the diaphragm pump (8) is fixed on the box body (1), a connecting pipe (9) is provided at the output port of the diaphragm pump (8), a feed box (10) is provided on the connecting pipe (9), a coating machine (11) is fixed at the bottom end of the feed box (10), a receiver (12) is provided at the bottom of the coating machine (11), an input pipe (13) is provided at the bottom of the receiver (12), and the other end of the input pipe (13) extends to the interior of the slurry box (2).

2. A high temperature resistant lithium battery separator coating device according to claim 1, It is characterized in that The stirring rod (4) comprises a rotating shaft and a side rod, wherein one end of the side rod away from the rotating shaft is arranged to be tilted downward.

3. A high temperature resistant lithium battery separator coating device according to claim 1, It is characterized in that The end of the feed pipe (3) away from the slurry box (2) is arranged to be inclined upward.

4. A high temperature resistant lithium battery separator coating device according to claim 1, It is characterized in that The material receiver (12) is funnel-shaped.

5. A high temperature resistant lithium battery separator coating device according to claim 1, It is characterized in that A filter B (14) is fixed on the inlet pipe (13), and both the filter A (7) and the filter B (14) are magnetic filters.

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