Combined sintering sagger for lithium battery material

Abstract

The utility model discloses a combined sintering sagger for a lithium battery material. The combined sintering sagger comprises a bottom plate, a first wall plate and a second wall plate, wherein the bottom plate is used for defining the sagger; butt joint grooves are formed in the edges of the opposite faces of the two first wall plates, one sides of the butt joint grooves are open, the other sides of the butt joint grooves are closed, and the butt joint grooves are matched with butt joint strips arranged on the second wall plates, so that a vertically-through shell is defined by the two first wall plates and the second wall plates; the opening sides, corresponding to the butt joint grooves, of the two first wall plates are provided with connecting rails, the connecting rails are in sliding fit with the bottom plate, and the bottom plate can seal one side of the shell and the butt joint grooves. The problems that in the prior art, a combined sagger is prone to loosening and disintegration, and then graphite ingredients are scattered and difficult to collect and treat are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to battery processing preparation technical field, concretely relates to a combined sintering saggar for lithium battery material. BACKGROUND

[0002] Graphite material has the advantages of high temperature resistance, good heat conductivity and thermal shock resistance, so it is often used in lithium battery negative material sintering container. At present, the graphite saggar used in the industry is generally machined from a whole graphite blank, or prefabricated into a carbon saggar by integral molding, and then obtained by high temperature graphitization. The effective utilization rate of graphite blank produced by machining method is only about 20%, and a large amount of graphite scrap is produced. The saggar produced by integral molding has large equipment investment, complex process and high production cost. Therefore, a combined graphite saggar for negative material sintering appears in the prior art, as shown in reference 1.

[0003] Reference 1: Chinese patent document with patent publication number CN 211373254 U.

[0004] Reference 1 discloses a combined graphite saggar for negative material sintering, which comprises a saggar wall, a bottom plate and a cover plate combined together, an annular groove is formed in the upper end surface of the bottom plate, the lower end of the saggar wall is inserted into the annular groove of the bottom plate, and the cover plate is placed on the upper end surface of the saggar wall to form a square saggar, thereby greatly expanding the selection range of saggar raw material plate, only the corresponding graphite plate needs to be cut and processed according to the target size, the machining process is simple, the saggar is easy to combine, the cost is greatly reduced, and the effect of reducing the high temperature sintering cost of negative material is remarkable.

[0005] However, the combined saggar described in reference 1 has the problem that the saggar wall is easy to come off from the annular groove after collision, and the graphite ingredients placed in the saggar will fall out and scatter after the saggar wall comes off from the annular groove. The scattering of graphite ingredients needs to be collected and processed by workers, thereby reducing the work efficiency of workers and increasing the workload of workers to some extent. UTILITY MODEL CONTENT

[0006] The utility model aims at solving the problem that the combined saggar in the prior art is easy to come off and disintegrate, and the graphite ingredients are scattered and difficult to collect and process, and provides a combined sintering saggar for lithium battery material.

[0007] The utility model solves the above technical problems, and adopts the technical scheme of a combined sintering saggar for lithium battery material, which comprises a bottom plate and two first wall plates and a second wall plate for surrounding the saggar.

[0008] Two first wallboards are provided with butt joint grooves at opposite edges, the butt joint grooves are open at one side and closed at the other side, and the butt joint grooves are matched with butt joint strips arranged on the second wallboard, so that the two first wallboards and the second wallboard enclose a vertically-through shell.

[0009] The open side of the butt joint groove of the two first wallboards is provided with a connecting rail, the connecting rail is in sliding fit with the bottom plate, and the bottom plate can close one side of the shell and the butt joint groove.

[0010] As a further optimization of the combined sintering saggar for lithium battery materials, one side of the bottom plate is provided with a pull plate, the pull plate is perpendicular to the bottom plate and is lapped on the outer side of the corresponding second wallboard.

[0011] As a further optimization of the combined sintering saggar for lithium battery materials, the pull plate is provided with an arc-shaped groove at the corresponding side of the corresponding second wallboard.

[0012] As a further optimization of the combined sintering saggar for lithium battery materials, an inclined groove is arranged on the upper side of the bottom plate, and the lower end of the inclined groove is arranged away from the pull plate.

[0013] As a further optimization of the combined sintering saggar for lithium battery materials, the upper side of the two first wallboards is provided with an inner recess.

[0014] As a further optimization of the combined sintering saggar for lithium battery materials, the inner recess is in the shape of a V-shaped flared upward.

[0015] As a further optimization of the combined sintering saggar for lithium battery materials, handles are fixedly arranged on the upper sides of the two second wallboards, and clamping grooves corresponding to the handles are arranged on the lower side of the bottom plate.

[0016] As a further optimization of the combined sintering saggar for lithium battery materials, the butt joint groove and the butt joint strip are in the shape of a dovetail.

[0017] As a further optimization of the combined sintering saggar for lithium battery materials, the connecting rail is in the shape of an L-shaped cross section.

[0018] Compared with the prior art, the combined sintering saggar for lithium battery materials has the following beneficial effects:

[0019] The utility model discloses a first wallboard and second wallboard are surrounded to form the shell of the center through, and the connecting rail that is arranged on the corresponding docking groove of first wallboard and the outside communication side is used to connect with the bottom plate of one side of the closed center through shell to limit the slide of second wallboard and docking strip in the docking groove, and the long distance contact of connecting rail and bottom plate can increase the probability of the slide of bottom plate from connecting rail, and can reduce the condition of the separation of bottom plate from first wallboard, and the support of bottom plate to connecting rail can make two first wallboards away from each other and further improve the connection tightness of connecting rail and bottom plate, and make two docking grooves tighten docking strip to further reduce the probability of the disintegration of first wallboard, second wallboard, connecting rail and bottom plate.

[0020] Further, the utility model discloses the arc-shaped recess that is arranged on the pull plate and is arranged on the pull plate, to facilitate staff to pull the slide of bottom plate under the limitation of connecting rail, and then can make the shell that first wallboard and second wallboard surround the corresponding side and the outside communication, then can conveniently staff to discharge the graphite ingredient after sintering and carry out subsequent processing. DRAWINGS

[0021] Figure 1 It is the front view structure schematic drawing of the utility model;

[0022] Figure 2 It is the first cross section structure schematic drawing of the utility model;

[0023] Figure 3 It is the second cross section structure schematic drawing of the utility model;

[0024] Figure 4 It is the third cross section combined structure schematic drawing of the utility model;

[0025] Mark in drawing: 1, first wallboard;2, second wallboard;3, handle;4, bottom plate;5, pull plate;6, inner recess;7, connecting rail;8, docking groove;9, docking strip;10, clamping groove. DETAILED DESCRIPTION

[0026] In order to better understand the utility model, the content of the utility model is further illustrated below in conjunction with examples, but the content of the utility model is not limited to the following examples.

[0027] As Figure 1As shown, a combined sintering sagger for lithium battery materials has two vertically arranged first wall plates 1 and two second wall plates 2. Each of the first wall plates 1 has a mating groove 8 at its longitudinal edge, and the mating groove 8 is arranged along the longitudinal direction of the first wall plate 1. Figure 4 As shown, the docking groove 8 extends through the first wall plate 1 on one side, and the length of the docking groove 8 is less than the height of the first wall plate 1. A docking strip 9, which is fixedly connected to the second wall plate 2, is slidably provided in the docking groove 8. A connecting rail 7 is provided on the lower side of both first wall plates 1. A base plate 4 is slidably provided in the connecting rail 7. The long-distance contact between the connecting rail 7 and the base plate 4 maintains the range covered by the friction between the two, which can increase the force required to pull the base plate 4 to slide in the connecting rail 7. At the same time, the base plate 4 can restrict the docking strip 9 to the docking groove 8, so as to cooperate with the two first wall plates 1, the two second wall plates 2 and the base plate 4 to form a sagger for holding graphite materials and sintering. The connecting rail 7 can maintain the connection stability between the first wall plate 1 and the base plate 4. Even in the event of a collision, as long as the connecting rail 7 and the base plate 4 do not suffer fracture damage, the connection between the two first wall plates 1 and the base plate 4 can be guaranteed. Furthermore, on the basis that the first wall plate 1 is not penetrated on one side of the docking groove 8, the base plate 4 will also press against the docking strip 9, so that the docking strip 9 presses against the top wall of the docking groove 8. This can then restrict the position of the second wall plate 2 and maintain the connection stability between the second wall plate 2 and the base plate 4. Moreover, the pressing of the second wall plate 2 and the docking strip 9 against the base plate 4 will also increase the friction between the base plate 4 and the inner wall of the connecting rail 7, so as to maintain the positional stability of the base plate 4 after assembly. This reduces the probability of the assembled sagger colliding and disintegrating during use, thereby reducing the probability of graphite ingredients scattering from the assembled sagger.

[0028] like Figure 3 As shown, both the docking groove 8 and the docking strip 9 are dovetail-shaped to increase the contact area between them, thereby increasing their contact friction and ensuring the connection stability of the first wall plate 1 and the second wall plate 2. The connection between the docking groove 8 and the docking strip 9 also reduces the probability of graphite material leakage from the connection between the first wall plate 1 and the second wall plate 2. The connecting rail 7 has an L-shaped cross-section to allow the bottom plate 4 to be inserted and stably connected to the two first wall plates 1. Simultaneously, the two first wall plates 1, supported by the bottom plate 4, allow the docking groove 8 to tighten the docking strip 9, further positioning the second wall plate 2. Furthermore, the cooperation of the two connecting second wall plates 2, the docking strip 9, and the docking groove 8, along with maintaining the distance between the two connecting rails 7, ensures that the bottom plate 4 is stably confined within the two connecting rails 7, thus stably sealing the corresponding sides of the shell formed by the two first wall plates 1 and the two second wall plates 2. This allows the graphite material to be placed into the sagger for subsequent sintering processes.

[0029] Two second wallboards 2 are provided with downward recessed inner recesses 6 on the sides away from the bottom plate 4, the inner recesses 6 can form a flow guide channel between the vertically stacked stored multiple first wallboards 1, specifically, the inner recess is a V-shaped upward flared setting, to maximize the size of the flow guide channel on the basis of ensuring the structural stability of the first wallboard 1, when vertically stacking multiple crucibles, the corresponding inner recess 6 can pass air to ensure the cooling speed of the sintered graphite mixture. The upper side of the two second wallboards 2 is fixedly provided with handles 3, the two handles 3 can cooperate with the inner recess to further enlarge the size of the formed flow guide channel, and can be conveniently held by the staff for transfer, specifically, the handle 3 is a reverse U-shaped setting, that is, the lower side is hollow, which can also form another flow guide channel perpendicular to the flow guide channel formed by the inner recess 6, to further improve the cooling speed of the sintered graphite mixture, and the bottom plate 4 is provided with a clamping groove 10 matched with the handle 3, the clamping groove 10 can cooperate with the handle 3 to stabilize the stability of the vertically stacked multiple crucibles.

[0030] One side of the bottom plate 4 is fixedly provided with a pull plate 5, the pull plate 5 is attached to the outer side of the corresponding second wallboard 2, so as to reduce the probability that the pull plate 5 is pulled out of the connecting rail 7 due to external accidental touch, as shown in Figure 2 , and the center of the pull plate 5 is provided with an arc-shaped groove, which can be inserted by the fingers of the staff to pull the pull plate 5 out of the connecting rail 7 and flow the sintered graphite mixture from the bottom of the two first wallboards 1 and the two second wallboards 2, that is, to facilitate the staff to discharge the sintered graphite mixture for subsequent processing, the bottom plate 4 is provided with an inclined groove close to the pull plate 5 high and away from the pull plate 5 low, which can guide the sintered graphite mixture to be discharged for subsequent processing when the bottom plate 4 pulls a gap with the bottom of the corresponding second wallboard 2.

[0031] The specific embodiments of the present application are described above. It should be understood that the present application is not limited to the above specific embodiments, and those skilled in the art can make various modifications or modifications within the scope of the claims, which does not affect the essential content of the present application.

Claims

1. A composite sintering sagger for lithium battery materials, characterized in that: The application relates to a sagger, which comprises a bottom plate (4) and two first wall plates (1) and second wall plates (2) for surrounding the sagger. Two first wall plates (1) are provided with butt-joint grooves (8) at opposite edges, the butt-joint grooves (8) being open on one side and closed on the other side, and cooperating with butt-joint strips (9) arranged on the second wall plates (2) to form a shell penetrating from top to bottom. The open side of the butt-joint groove (8) is provided with a connecting rail (7), the connecting rail (7) is in sliding cooperation with the bottom plate (4), and the bottom plate (4) can close one side of the shell and the butt-joint groove (8).

2. The combined sintering saggar for lithium battery material according to claim 1, characterized in that: One side of the bottom plate (4) is provided with a pull plate (5) which is perpendicular to the bottom plate (4) and overlaps the outer side of the corresponding second wall plate (2).

3. The combined sintering saggar for lithium battery material according to claim 2, characterized in that: The pull plate (5) is provided with an arc-shaped groove on the corresponding side of the corresponding second wall plate (2).

4. The combined sintering pot for lithium battery material according to claim 2, characterized in that: The upper side of the bottom plate (4) is provided with an inclined groove, and the lower end of the inclined groove is arranged away from the pull plate (5).

5. The combined sintering pot for lithium battery material according to claim 1, characterized in that: The upper side of the two first wall plates (1) is provided with an inner recess (6).

6. The combined sintering pot for lithium battery material according to claim 5, characterized in that: The inner recess (6) is in the shape of an upwardly expanded V.

7. The combined sintering pot for lithium battery material according to claim 1, characterized in that: The upper side of the two second wall plates (2) is fixedly provided with a handle (3), and the lower side of the bottom plate (4) is provided with a clamping groove (10) corresponding to the handle (3).

8. The combined sintering pot for lithium battery material according to claim 1, characterized in that: The butt-joint groove (8) and the butt-joint strip (9) are both in the shape of a swallowtail.

9. The combined sintering pot for lithium battery material according to claim 1, characterized in that: The cross section of the connecting rail (7) is in the shape of L.

Images