Glove box device

Abstract

The utility model provides a glove box device which comprises a die-cutting glove box, a lamination glove box and a pneumatic opening and closing device arranged between the die-cutting glove box and the lamination glove box, the die-cutting glove box is provided with a die-cutting feeding transition cabin, the lamination glove box is provided with a lamination feeding transition cabin and a discharging transition cabin, and the die-cutting feeding transition cabin and the lamination feeding transition cabin are communicated with the discharging transition cabin. Isolation gloves are arranged on the die-cutting glove box and the lamination glove box at the positions where the transition cabins are arranged, and isolation gloves are arranged on the side, close to the pneumatic opening and closing device, of the die-cutting glove box and / or the lamination glove box; according to the utility model, the glove boxes are additionally arranged, so that the die-cutting lamination of a solid-state lithium battery product is completed in the glove boxes, the processing environment is isolated from air, and the air is effectively prevented from chemically reacting with the positive electrode and the negative electrode; the electrochemical performance of the lithium battery and the safety of die cutting and lamination of the solid-state lithium battery are improved, and the assembly efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of solid-state lithium batteries, in particular to a glove box device, and in particular to a glove box device suitable for die-cutting and laminating assembly of solid-state lithium battery pole pieces. Background Art

[0002] All-solid-state batteries use non-flammable solid electrolytes instead of traditional organic flammable electrolytes, which fundamentally avoids safety issues. However, there is a solid-state lithium battery pole piece die-cutting lamination assembly mechanism in the prior art, such as Figure 4 As shown, the mechanism includes a die-cutting machine 1 and a stacking machine 5. The die-cutting machine 1 is a standard die-cutting machine for pressing and cutting lithium battery pole pieces. After the pressing and cutting of the lithium battery pole pieces, they enter the stacking machine 5. The stacking machine 5 is a standard stacking machine, which automatically stacks the pressed and cut lithium battery pole pieces. Among them, the die-cutting machine 1 includes a coil unwinding mechanism 11, a pole piece stamping die 12 and a conveyor belt. During the production process, the lithium battery pole piece coil is unwound horizontally by the coil unwinding mechanism 11, and is transmitted to the pole piece stamping die 12 by the conveyor belt for pole piece stamping and die cutting to obtain stacked monopolar pole pieces. The stacked monopolar pole pieces are transferred to the stacking machine 5 by the pneumatic opening and closing device 4 for automatic stacking and placement. Among them, the stacking machine 5 includes a stacking positioning and stacking mechanism 13. After the stacked monopolar pole pieces are positioned by the stacking positioning and stacking mechanism 13, they are automatically stacked and placed to ensure the position size between the positive and negative pole pieces.

[0003] Since there are serious side reactions in the manufacturing process of the assembly mechanism, the production scale and efficiency of all-solid-state batteries are severely limited. Therefore, it is necessary to isolate the assembly process of the solid-state lithium battery from the air and enhance the safety of the die-cutting and lamination of the solid-state lithium battery. Therefore, it is urgent to design an external box structure that can isolate the raw materials from the air during the integrated production, processing and assembly of die-cutting and lamination, so as to separate the entire assembly mechanism from the outside, improve the production scale and efficiency of all-solid-state batteries, and ensure product quality. Utility Model Content

[0004] In view of the defects in the prior art, the purpose of the utility model is to provide a glove box device.

[0005] According to a glove box device provided by the utility model, it includes a die-cut glove box, a laminated glove box and a pneumatic opening and closing device arranged between the die-cut glove box and the laminated glove box, wherein the die-cut glove box and the laminated glove box are respectively provided with a first accommodating space and a second accommodating space, and the pneumatic opening and closing device has a closed state and a fully open state, when the pneumatic opening and closing device is in the closed state, the first accommodating space and the second accommodating space are not connected, and when the pneumatic opening and closing device is in the fully open state, the first accommodating space and the second accommodating space are connected;

[0006] The die-cutting glove box is provided with a die-cutting feed transition cabin, and the laminated glove box is provided with a laminated feed transition cabin and a discharge transition cabin. The positions where the transition cabins are provided on the die-cutting glove box and the laminated glove box are provided with isolation gloves. The die-cutting glove box and / or the laminated glove box are provided with isolation gloves on one side close to the pneumatic opening and closing device;

[0007] The die-cutting glove box and the lamination glove box are both closed systems and are connected to an argon circulation system.

[0008] Preferably, the die-cutting feed transition cabin, the stacking feed transition cabin, and the discharge transition cabin are all provided with an outer cabin door and an inner cabin door, and a parking space is provided between the outer cabin door and the inner cabin door.

[0009] Preferably, the parking space is connected with a vacuum port, an argon gas filling port, and a pressure detection port.

[0010] Preferably, the outer door of the transition cabin and the inner door of the transition cabin are both manually controlled.

[0011] Preferably, the portion of the die-cut glove box and / or laminated glove box where the isolation gloves are arranged is made of transparent material.

[0012] Preferably, the die-cutting glove box and the lamination glove box are both provided with a standard monitoring system, and the standard monitoring system includes a water and oxygen content sensor, a pressure sensor, and a numerical display.

[0013] Preferably, the pneumatic opening and closing device includes a support frame, a driving cylinder and a door panel assembly. The support frame is provided with a through opening. One end of the driving cylinder is fixed on the die-cutting glove box or the laminated glove box, and the other end of the driving cylinder is connected to the door panel assembly. The door panel assembly is slidably matched with the support frame. When the push rod on the driving cylinder is extended or retracted, the door panel assembly can be driven to move between a first position and a second position. When the door panel assembly is in the first position, the pneumatic opening and closing device is in a fully open state. When the door panel assembly is in the second position, the pneumatic opening and closing device is in a closed state.

[0014] Preferably, sealing strips are used to achieve soft sealing connection between the support frame and the die-cutting glove box, and between the support frame and the lamination glove box.

[0015] Preferably, the door panel assembly includes a sealing plate, a fixed plate and a tightening cylinder, the two sides of the fixed plate and the two sides of the supporting frame form a sliding pair, the sealing plate is arranged between the fixed plate and the supporting frame, the tightening cylinder is fixed on the fixed plate and the end of the tightening cylinder push rod is connected to the sealing plate, when the fixed plate moves to the second position, the tightening cylinder can drive the sealing plate to seal and block the passage.

[0016] Preferably, weight-reducing holes are provided on the fixing plate.

[0017] Preferably, the laminated glove box is also provided with an auxiliary feed transition cabin.

[0018] Compared with the prior art, the utility model has the following beneficial effects:

[0019] The utility model adds a glove box so that the die-cutting and lamination of solid-state lithium battery products can be completed in the glove box, so that the processing environment is isolated from the air, and chemical reactions between the air and the positive and negative electrodes are effectively avoided, and the oxidation and nitridation of the lithium battery surface and the discoloration of the lithium battery surface are avoided. The electrochemical performance of the lithium battery is improved, the product quality is guaranteed, the safety of die-cutting and lamination of the solid-state lithium battery is enhanced, and the assembly efficiency is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0021] Figure 1 It is a schematic diagram of the structure of the utility model when viewed from the upper side;

[0022] Figure 2 It is a top view of the external structure of the utility model;

[0023] Figure 3 It is a side view of the utility model;

[0024] Figure 4 It is a schematic diagram of the internal structure of the utility model;

[0025] Figure 5 It is a structural schematic diagram of one side of the pneumatic opening and closing device;

[0026] Figure 6 It is a structural schematic diagram of the other side of the pneumatic opening and closing device;

[0027] Figure 7 It is a schematic diagram of the back structure of the die-cutting machine glove box;

[0028] Figure 8 It is a schematic diagram of the side structure of the die-cutting machine glove box;

[0029] Fig. 9 This is a schematic diagram of the structure of the die-cutting machine glove box from a top view;

[0030] Fig.10 This is a schematic diagram of the front structure of the transition warehouse;

[0031] Fig.11 It is a schematic diagram of the side structure of the transition warehouse;

[0032] Fig.12 This is a schematic diagram of the top view of the transition warehouse;

[0033] Fig.13 It is a schematic diagram of the side structure of the glove box of the lamination machine;

[0034] Fig.14 It is a schematic diagram of the back structure of the glove box of the lamination machine;

[0035] Fig.15 It is a schematic top view of the structure of the glove box of the stacking machine.

[0036] The figure shows:

[0037] 1. Die-cutting machine; 2. Die-cutting glove box; 3. Die-cutting feed transition cabin; 301. Rotary clamping column; 302. Support plate; 4. Pneumatic opening and closing device; 41. Support frame; 42. Driving cylinder; 43. Door panel assembly; 431. Sealing plate; 432. Fixed plate; 4321. Weight reduction hole; 433. Tightening cylinder; 5. Lamination machine; 6. Lamination glove box; 7. Lamination feed transition cabin; 8. Discharge transition cabin; 9. Die-cutting waste collection cabin; 10. Auxiliary feed transition cabin; 11. Coil unwinding mechanism; 12. Pole sheet stamping die; 13. Lamination positioning and stacking mechanism; 101. First accommodating space; 102. Second accommodating space. DETAILED DESCRIPTION

[0038] The utility model is described in detail below in conjunction with specific embodiments. The following embodiments will help those skilled in the art to further understand the utility model, but do not limit the utility model in any form. It should be pointed out that for those of ordinary skill in the art, several changes and improvements can be made without departing from the concept of the utility model. These all belong to the protection scope of the utility model.

[0039] The utility model provides a glove box device, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, it includes a die-cutting glove box 2, a laminated glove box 6, and a pneumatic opening and closing device 4 arranged between the die-cutting glove box 2 and the laminated glove box 6. The die-cutting glove box 2 and the laminated glove box 6 are respectively provided with a first accommodating space 101 and a second accommodating space 102. A die-cutting machine 1 is installed inside the first accommodating space 101, and a laminated machine 5 is installed inside the second accommodating space 102. The die-cutting glove box 2 and the laminated glove box 6 are both closed systems and are connected to an argon circulation system. The argon circulation system can provide high-purity argon gas. The specific structure of the argon circulation system is prior art and will not be repeated here.

[0040] like Figure 4 , Figure 5 , Figure 6 As shown, the pneumatic opening and closing device 4 has a closed state and a fully open state. When the pneumatic opening and closing device 4 is in the closed state, the first accommodating space 101 and the second accommodating space 102 are not connected. When the pneumatic opening and closing device 4 is in the fully open state, the first accommodating space 101 and the second accommodating space 102 are connected. The pneumatic opening and closing device 4 is used to isolate the box space of the die-cutting glove box 2 and the laminated glove box 6, so that the die-cutting glove box 2 and the laminated glove box 6 can be used together or separately. The pneumatic opening and closing device 4 uses a gas-driven cylinder for split opening and closing.

[0041] Specifically, the pneumatic opening and closing device 4 includes a support frame 41, a driving cylinder 42 and a door panel assembly 43. The support frame 41 is provided with a through hole 411. One side of the support frame 41 is screwed to the die-cutting glove box 2, and the two are sealed. The other side of the support frame 41 is screwed to the laminated glove box 6, and the two are also sealed. The sealing connection between the support frame 41 and the die-cutting glove box 2 and the laminated glove box 6 is preferably achieved by a sealing strip to achieve a soft sealing connection. One end of the driving cylinder 42 is fixed to the die-cutting glove box 2 or the laminated glove box 6, and the other end of the driving cylinder 42 is connected to the door panel assembly 43. The door panel assembly 43 is slidably matched with the support frame 41. When the push rod on the driving cylinder 42 is extended or retracted, the door panel assembly 43 can be driven to move between the first position and the second position. When the door panel assembly 43 is in the first position, the pneumatic opening and closing device 4 is in a fully open state, and when the door panel assembly 43 is in the second position, the pneumatic opening and closing device 4 is in a closed state.

[0042] Further, the door panel assembly 43 includes a sealing plate 431, a fixed plate 432 and a tightening cylinder 433. The two sides of the fixed plate 432 form a sliding pair with the two sides of the support frame 41. The sealing plate 431 is arranged between the fixed plate 432 and the support frame 41. The tightening cylinder 433 is fixed on the fixed plate 432 and the end of the tightening cylinder push rod is connected to the sealing plate 431. When the fixed plate 432 moves to the second position, the tightening cylinder 433 can drive the sealing plate 431 to approach the through port 411 and block the through port 411. In order to reduce weight and increase the flexibility of movement, one or more weight-reducing holes 4321 are arranged on the fixed plate 432 without affecting the strength of the entire fixed plate 432, such as circular weight-reducing holes, square weight-reducing holes, diamond weight-reducing holes, etc.

[0043] The parts of the die-cut glove box 2 and the laminated glove box 6 in the utility model where the transition cabin is set are provided with isolation gloves. In addition, isolation gloves can be set at any parts of the glove box that require manual operation to complete the operation with manual assistance. It should be noted that the parts of the die-cut glove box 2 and / or the laminated glove box 6 where the isolation gloves are set are made of transparent materials, such as transparent plastic, glass, etc., which is convenient for people to observe the interior during hand operation and increase the efficiency and accuracy of the operation.

[0044] like Figure 1 , Figure 2 , Figure 7 , Figure 8 , Fig. 9 , Fig.13 , Fig.14 , Fig.15 As shown, the die-cutting glove box 2 is provided with a die-cutting feed transition cabin 3, and the laminated glove box 6 is provided with a laminated feed transition cabin 7 and a discharge transition cabin 8. The die-cutting feed transition cabin 3, the laminated feed transition cabin 7, and the discharge transition cabin 8 are all provided with an outer door of the transition cabin and an inner door of the transition cabin. The outer door of the transition cabin and the inner door of the transition cabin are both manually controlled. For example, the inner door and the outer door are both hinged. When opening and closing, they can be achieved by rotating around the door axis. A sealing strip is provided between the door and the cabin tube. When the door is closed, it can be sealed after being pressed by an external pressing component. The pressing component can adopt a rotating pressing column 301 and a support plate 302. When the rotating pressing column 301 is rotated after the door is closed, the rotating pressing column 301 is threadedly rotated in the support plate 302 and presses the door tightly to achieve the sealing of the door. The door inside the transition cabin can be opened and closed by isolating gloves. In practical applications, the outer door of the transition cabin and the inner door of the transition cabin can also adopt the structure in the prior art to achieve the sealing of opening and closing, which will not be repeated here.

[0045] like Fig.10 , Fig.11 , Fig.12 As shown, the transition cabin is used to transfer solid-state lithium battery pole products for production, and a parking space is set between the outer hatch of the transition cabin and the inner hatch of the transition cabin. The parking space is connected with a vacuum port, an argon filling port, and a pressure detection port. The vacuum port, the argon filling port, and the pressure detection port are respectively connected to the vacuum equipment, the argon circulation system, and the pressure sensor, which are used to vacuum, fill argon, and pressure detection of the parking space. The die-cutting glove box 2 and the stacking glove box 6 are both equipped with a standard monitoring system, which includes a water oxygen content sensor, a pressure sensor, and a numerical display.

[0046] The utility model integrates the lamination die-cutting of the material into one, and then arranges them inside the glove box, so that the assembly process of the solid-state lithium battery is isolated from the water and oxygen in the air. The utility model can isolate the raw materials from the air during the integrated production, processing and assembly of die-cutting and lamination, and flexibly split and combine the two processes of die-cutting and lamination, thereby improving the production efficiency and production quality of all-solid-state lithium batteries.

[0047] The laminated glove box 6 is also provided with an auxiliary feeding transition chamber 10 for conveying the required auxiliary materials into the laminated glove box 6. The auxiliary feeding transition chamber 10 can adopt the same structure as other transition chambers, which will not be described in detail here. The die-cutting glove box 2 is provided with a waste collection chamber 9 for collecting the die-cutting scraps.

[0048] The working principle of the utility model is as follows:

[0049] The die-cutting glove box 2 is provided with a die-cutting machine 1, a die-cutting waste collection cabin 9, a coil unwinding mechanism 11, and a pole piece stamping die 12. The die-cutting machine 1 is used to press and cut the negative pole piece of the lithium battery. The stacking glove box 6 is provided with a stacking machine 5, and the stacking machine 5 is used to automatically stack the pressed and cut lithium battery pole pieces. At this time, the doors of the transition cabin are closed, and the pneumatic opening and closing device 4 is closed, and the glove box is filled with argon gas.

[0050] Open the outer hatch 31 of the feed transition cabin 3, place the packaged solid-state lithium battery negative electrode plate product into the parking space in the feed transition cabin 3, close the outer hatch 31 of the feed transition cabin, evacuate the parking space in the feed transition cabin 3, remove water and oxygen in a vacuum state, fill with argon gas after the vacuuming is completed, and make the pressure in the transition cabin the same as the pressure in the die-cutting glove box 2, then open the inner hatch of the transition cabin, and transfer the electrode material into the die-cutting glove box 2 through the insulating gloves set on the die-cutting glove box 2.

[0051] The splitting and cutting process of lithium battery pole piece products is completed in the high-purity argon environment in the die-cutting glove box 2. The process is carried out in batches. The coil is unwound horizontally by the coil unwinding mechanism 11 and transferred to the pole piece stamping die 12 for pole piece stamping to obtain stacked monopolar pole pieces, which are automatically transferred to the pneumatic opening and closing device 4 for automatic stacking and placement, and the waste is collected in the die-cutting waste collection cabin 9.

[0052] Open the pneumatic opening and closing device 4 to transfer the lithium battery electrode material between the stacking glove box 6 and the die-cutting glove box 2. The die-cutting glove box 2 and / or the stacking glove box 6 are provided with insulating gloves, and the lithium battery electrode material is manually transferred to the inside of the stacking glove box 6 through the insulating gloves.

[0053] Open the outer hatch door 71 of the stacking feeding transition cabin 7, put the packaged solid-state lithium battery positive electrode product into the parking space of the stacking feeding transition cabin 7, close the outer hatch door 71 of the stacking feeding transition cabin, evacuate the parking space of the transition cabin, fill it with argon gas after the vacuuming, and make the pressure in the feeding transition cabin 7 the same as the pressure in the stacking glove box 6. At this time, open the interior of the stacking feeding transition cabin 7, and transport the solid-state lithium battery positive electrode in the parking space on the stacking feeding transition cabin 7 to the stacking glove box 6 through the insulating gloves provided on the stacking glove box 6.

[0054] The stacking glove box 6 is provided with a stacking machine 5 and a stacking positioning and stacking mechanism 13. The stacking process of the positive and negative electrode products of the lithium battery is completed in the high-purity argon environment in the stacking glove box 6. After positioning by the stacking positioning and stacking mechanism 13, the stacking machine 5 performs automatic stacking to ensure the position and size between the positive and negative electrode sheets.

[0055] In the stacking glove box 6, after the stacked lithium battery pole piece products are packaged, the parking space in the discharge transition chamber 8 is evacuated and filled with argon gas until the pressure is the same as the pressure in the stacking glove box 6, the inner door of the discharge transition chamber 8 is opened, and the packaged lithium battery pole piece products are moved into the parking space of the discharge transition chamber 8 through the isolation gloves, and the inner door of the discharge transition chamber 8 is closed, and the outer door of the discharge transition chamber 8 is opened to move the packaged lithium battery pole piece group out of the discharge transition chamber 8, and the outer door is closed. In the process, without affecting the feeding function of the feeding transition chamber, the auxiliary parts such as tape can be transferred through the auxiliary feeding transition chamber 10.

[0056] In the description of the present application, it should be understood that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0057] The above describes the specific embodiments of the present invention. It should be understood that the present invention is not limited to the above specific embodiments, and those skilled in the art can make various changes or modifications within the scope of the claims, which does not affect the essence of the present invention. In the absence of conflict, the embodiments of the present application and the features in the embodiments can be combined with each other at will.

Claims

1. A glove box device, characterized in that: The invention comprises a die-cutting glove box (2), a laminated glove box (6), and a pneumatic opening and closing device (4) arranged between the die-cutting glove box (2) and the laminated glove box (6); the die-cutting glove box (2) and the laminated glove box (6) are respectively provided with a first accommodating space (101) and a second accommodating space (102); the pneumatic opening and closing device (4) has a closed state and a fully open state; when the pneumatic opening and closing device (4) is in the closed state, the first accommodating space (101) and the second accommodating space (102) are not connected; when the pneumatic opening and closing device (4) is in the fully open state, the first accommodating space (101) and the second accommodating space (102) are connected; The die-cutting glove box (2) is provided with a die-cutting feed transition cabin (3), and the laminated glove box (6) is provided with a laminated feed transition cabin (7) and a discharge transition cabin (8). The portions of the die-cutting glove box (2) and the laminated glove box (6) where the transition cabins are provided are provided with isolation gloves, and the die-cutting glove box (2) and / or the laminated glove box (6) are provided with isolation gloves on one side close to the pneumatic opening and closing device (4); The die-cutting glove box (2) and the lamination glove box (6) are both closed systems and are connected to an argon gas circulation system.

2. The glove box device according to claim 1, characterized in that: The die-cutting feed transition cabin (3), the lamination feed transition cabin (7), and the discharge transition cabin (8) are all provided with a transition cabin outer door and a transition cabin inner door, and a parking space is provided between the transition cabin outer door and the transition cabin inner door.

3. The glove box device according to claim 2, characterized in that: The parking space is connected with a vacuum port, an argon filling port, and a pressure detection port; The outer door of the transition cabin and the inner door of the transition cabin shown are both manually controlled structures.

4. The glove box device according to claim 1, characterized in that: The portion of the die-cut glove box (2) and / or the laminated glove box (6) where the isolation gloves are arranged is made of a transparent material.

5. The glove box device according to claim 1, characterized in that: The die-cutting glove box (2) and the laminated glove box (6) are both provided with a standard monitoring system, and the standard monitoring system comprises a water and oxygen content sensor, a pressure sensor, and a numerical display.

6. The glove box device according to claim 1, characterized in that: The pneumatic opening and closing device (4) comprises a support frame (41), a driving cylinder (42) and a door panel assembly (43); the support frame (41) is provided with a through opening (411); one end of the driving cylinder (42) is fixed on the die-cutting glove box (2) or the laminated glove box (6); the other end of the driving cylinder (42) is connected to the door panel assembly (43); the door panel assembly (43) is slidably matched with the support frame (41); when the push rod on the driving cylinder (42) is extended or retracted, the door panel assembly (43) can be driven to move between a first position and a second position; when the door panel assembly (43) is in the first position, the pneumatic opening and closing device (4) is in a fully open state; when the door panel assembly (43) is in the second position, the pneumatic opening and closing device (4) is in a closed state.

7. The glove box device according to claim 6, characterized in that: Sealing strips are used to achieve soft sealing connection between the support frame (41) and the die-cutting glove box (2), and between the support frame (41) and the laminated glove box (6).

8. The glove box device according to claim 6, characterized in that: The door panel assembly (43) includes a sealing plate (431), a fixed plate (432) and a tightening cylinder (433). The two sides of the fixed plate (432) form a sliding pair with the two sides of the support frame (41). The sealing plate (431) is arranged between the fixed plate (432) and the support frame (41). The tightening cylinder (433) is fixed on the fixed plate (432) and the end of the tightening cylinder push rod is connected to the sealing plate (431). When the fixed plate (432) moves to the second position, the tightening cylinder (433) can drive the sealing plate (431) to seal and block the through port (411).

9. The glove box device according to claim 8, characterized in that: The fixing plate (432) is provided with a weight-reducing hole (4321).

10. The glove box device according to claim 1, characterized in that: The laminated glove box (6) is also provided with an auxiliary feed transition cabin (10).

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