CN221282202U

CN221282202U - Formation layer plate, formation clamp and formation equipment

Info

Publication number: CN221282202U
Application number: CN202322698649.2U
Authority: CN
Inventors: 秦俊
Original assignee: Shenzhen Pinzhong Automation Equipment Co ltd
Current assignee: Shenzhen Pinzhong Automation Equipment Co ltd
Priority date: 2023-10-07
Filing date: 2023-10-07
Publication date: 2024-07-05
Anticipated expiration: 2033-10-07

Abstract

The application discloses a formation layer plate, which comprises a heat-conducting heating plate, wherein the heat-conducting heating plate is integrally formed, and guide round holes are formed at two ends of the heat-conducting heating plate in the length direction; the charging and discharging assembly is arranged on the heat-conducting heating plate and comprises at least three groups of electrode plates, the at least three groups of electrode plates are sequentially arranged along the length direction of the heat-conducting heating plate, each group of electrode plates comprises two rows of electrode plates, and a battery placing area is formed between the two rows of electrode plates. The laminated plate has higher utilization rate.

Description

Formation layer plate, formation clamp and formation equipment

Technical Field

The application relates to the field of battery production equipment, in particular to a formation layer plate, a formation clamp and formation equipment.

Background

The formation fixture is equipment for the formation process flow of the battery, clamps the battery between formation layer plates, and applies pressure and heat to the battery to complete the formation of the battery. The existing formation jig comprises a plurality of formation plates which are arranged in a stacked manner, and when formation is carried out, the whole formation plates are generally pressed by a cylinder so as to press the battery between the formation plates. How to put as many cells as possible on one laminate is a research direction for those skilled in the art.

Disclosure of utility model

The application provides a formation layer board, which aims to improve the utilization rate of the formation layer board.

In order to achieve the above purpose, the application provides a formation layer board, which comprises a heat conducting heating plate, wherein the heat conducting heating plate is integrally formed, and guide round holes are formed at two ends of the heat conducting heating plate in the length direction; the charging and discharging assembly is arranged on the heat-conducting heating plate and comprises at least three groups of electrode plates, the at least three groups of electrode plates are sequentially arranged along the length direction of the heat-conducting heating plate, each group of electrode plates comprises two rows of electrode plates, and a battery placing area is formed between the two rows of electrode plates.

In one embodiment, the heat conductive heating plate is formed with a hollow cavity penetrating in the length direction, and a support rib is formed in the hollow cavity.

To achieve the above object, the present application provides a forming jig comprising: the plurality of formation layers are arranged in a stacked manner, the formation layers are the formation layers, and elastic pieces are arranged between every two adjacent formation layers; the output layer plate is arranged above the plurality of formation layer plates; the output driving piece is connected with the output laminate, and applies pressure to the plurality of formation laminate plates through the output laminate so that adjacent formation laminate plates are mutually close under the action of the pressure, and the elastic piece generates acting force at the moment; the force-exerting driving piece does not exert pressure, and the formation layers are restored to be spaced from each other under the action of the force exerted by the force-exerting driving piece; and the upright post penetrates through the guide round holes of the output laminate and the formation laminate, and the formation laminate moves along the upright post.

In one embodiment, the elastic member is a snap spring, and the snap spring is disposed between two adjacent laminated plates.

In one embodiment, the opposite surfaces of two adjacent formation plates are provided with clamping holes, and two ends of the clamping spring are respectively detachably clamped in the clamping holes.

In one embodiment, a guide plate is connected between every two adjacent formation layer plates, a guide groove is arranged on the guide plate, and the guide groove extends along the stacking direction of the formation layer plates; one of the two adjacent formation layers is fixedly connected with the guide plate, and the other is movably arranged in the guide groove so as to realize mutual approaching and mutual spacing; the formation layer plate comprises a top surface, a bottom surface, two first side surfaces and two second side surfaces, wherein the two first side surfaces are oppositely arranged, and the two second side surfaces are oppositely arranged, and guide sheets are arranged on the two first side surfaces.

In one embodiment, the snap spring protrudes from the second side.

In one embodiment, a first side of the formation layer plate is provided with a first connection hole, a second connection hole and a third connection hole which are arranged in an array, a first guide piece between the first formation layer plate and the second formation layer plate is connected to the first connection hole from top to bottom in the formation layer plates, a second guide piece between the second formation layer plate and the third formation layer plate is connected to the second connection hole, and a third guide piece between the third formation layer plate and the fourth formation layer plate is connected to the third connection hole; the first guide piece, the second guide piece and the third guide piece are arranged in a staggered mode.

In order to achieve the above purpose, the application provides a forming device, which comprises the forming clamp.

In an embodiment, the forming apparatus includes at least two forming jigs, the at least two forming jigs being disposed in sequence along a length direction of the heat conductive heating plate.

The application relates to a formation layer plate, which comprises a heat conduction heating plate, wherein the heat conduction heating plate is integrally formed, and guide round holes are formed at two ends of the heat conduction heating plate in the length direction; the charging and discharging assembly is arranged on the heat-conducting heating plate and comprises at least three groups of electrode plates, the at least three groups of electrode plates are sequentially arranged along the length direction of the heat-conducting heating plate, each group of electrode plates comprises two rows of electrode plates, and a battery placing area is formed between the two rows of electrode plates. The laminated plate has higher utilization rate.

Drawings

For a clearer description of the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly introduced below, it being obvious that the drawings in the description below are only some embodiments of the present application, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art, wherein:

FIG. 1 is a schematic view of the structure of the forming apparatus of the present application;

FIG. 2 is a schematic view of the internal structure of the chemical-mechanical device shown in FIG. 1;

FIG. 3 is a schematic view of the structure of the forming jig of the present application;

FIG. 4 is an enlarged schematic view of the portion A of the forming jig shown in FIG. 3;

FIG. 5 is a schematic view of the structure of the formed laminate of the present application;

Fig. 6 is another schematic structural view of the formation plate shown in fig. 5.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. It is to be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present application are shown in the drawings. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the application. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.

Referring to fig. 1-2, fig. 1 is a schematic structural view of a forming apparatus according to the present application, and fig. 2 is a schematic structural view of an inner portion of the forming apparatus shown in fig. 1. The formation apparatus 200 of the present embodiment is a formation process for a lithium battery, and is mainly composed of the formation jig 100, and the formation process is completed by charging and discharging, heating and pressurizing the lithium battery by the formation jig 100. The whole formation device 200 is also provided with a heat radiation device, an electric control device and the like which assist in forming the clamp.

Referring to fig. 3-4, fig. 3 is a schematic structural diagram of the forming jig according to the present application, and fig. 4 is an enlarged structural diagram of a portion a of the forming jig shown in fig. 3. The forming jig 100 of the present embodiment includes a plurality of forming plates 11, a force-applying plate 12, a force-applying driver 13, and a column 14, which are stacked.

The output laminate 12 is disposed above the plurality of formation laminates 11, and the output driving member 13 is connected to the output laminate 12, and applies pressure to the plurality of formation laminates 11 through the output laminate 12, so that adjacent formation laminates 11 approach each other under the action of the pressure, so as to apply pressure required for formation to the battery between the formation laminates 11. The force driver 13 may be a cylinder.

Elastic members are provided between each two adjacent formation layer plates 11; when the force is applied by the force-applying driving piece 13, the elastic piece is extruded to generate force; when the force-applying driving member 13 applies no pressure, the force of the elastic member returns the formation layer plates 11 to the mutual spacing. The upright 14 is provided through the force-exerting plate 12 and the lamination plate 11, and the lamination plate 11 moves along the upright 14.

Because the gravity of the formation plate 11 itself, the more the elastic member is at the bottom, the more the elastic member is subjected to pressure, so that the elastic members in the embodiment sequentially increase from top to bottom, so as to ensure the overall life of the elastic members.

In this embodiment, the elastic member is a snap spring, and is clamped between two adjacent laminated plates 11. Because the elastic member is located between the two formation layer plates 11, the size of the elastic member may cause the formation layer plates 11 to be unable to approach to the bonding state, so in this embodiment, a clamp spring is selected, and two ends of the clamp spring can be compressed to cross, so that the formation layer plates 11 can be made to approach to the bonding state, and the lamination layer plate is more suitable for a battery with smaller thickness.

In this embodiment, the opposite surfaces of two adjacent formation plates 11 are provided with a clamping hole 111, and two ends of the clamping spring are respectively detachably clamped in the clamping hole 111. The two ends of the snap spring are thread end ends, so that the snap spring can be clamped in the clamping hole 111, and the snap spring can be conveniently replaced by the detachable arrangement.

In this embodiment, the formation layer 11 includes a top surface, a bottom surface, two opposite first side surfaces, and two opposite second side surfaces, and the clamping springs may protrude from the first side surfaces or the second side surfaces. The protruding arrangement is more convenient for replacement operation, and the operator can squeeze the snap spring to make the snap spring break away from the clamping hole 111.

In this embodiment, a guide sheet 16 is connected between every two adjacent formation layer plates 11, a guide groove 161 is provided on the guide sheet 16, and the guide groove 161 is provided to extend along the stacking direction of the formation layer plates 11; two adjacent formation plates 11, one of which is fixedly connected to the guide piece 16 and the other of which is movably disposed in the guide groove 161 so as to be adjacent to and spaced apart from each other. The guide grooves 161 may be blind grooves or through holes, and are provided as through holes, so that the guide posts 162 are more conveniently provided on the formation layer plate 11. In the related art, flexible reset belts are adopted to connect all the formation plates, and the problem of fire easily occurs in the battery formation process, so that the flexible reset belts are damaged, and then the whole formation clamp cannot be used. In this embodiment, the guide piece 16 made of metal is used, so that the problem that the whole forming clamp cannot be used is avoided.

In this embodiment, the two first sides of the formation plate 11 are provided with guide plates 16, and the corresponding clamping springs are disposed on the second side.

In this embodiment, a first side of the formation plate 11 is provided with a first connection hole 112, a second connection hole 113 and a third connection hole 114 which are arranged in an array, among the formation plates 11 which are stacked, from top to bottom, a first guide piece between the first formation plate and the second formation plate is connected to the first connection hole 112, a second guide piece between the second formation plate and the third formation plate is connected to the second connection hole 113, and a third guide piece between the third formation plate and the fourth formation plate is connected to the third connection hole 114; the first guide piece, the second guide piece and the third guide piece are arranged in a staggered mode, so that the stacked formation plates can be stacked close to or spaced apart.

In this embodiment, the formation layer 11 is an integrated structure, please refer to fig. 5-6, fig. 5 is a schematic structural diagram of the formation layer of the present application, and fig. 6 is another schematic structural diagram of the formation layer of fig. 5.

The laminated sheet 11 includes a heat conductive heating plate 115, and the heat conductive heating plate 115 is integrally formed, and in order to reduce its weight, it is formed with a hollow cavity penetrating in the length direction L, and a support rib 116 is formed in the central cavity.

Guide circular holes 117 are formed at both end portions in the longitudinal direction L of the heat conductive heating plate 115, and the column 14 is inserted into the guide circular holes 117.

The heat conducting heating plate 115 is further provided with a charging and discharging assembly 17, the charging and discharging assembly 17 comprises at least three groups of electrode plates 171, the charging and discharging assembly 17 is used for charging and discharging the battery, and the electrode plates 171 are used for connecting the anode and the cathode of the battery. In this embodiment, at least three electrode plates 171 are disposed in sequence along the length direction L of the heat conductive heating plate 115, and in particular, in this embodiment, four electrode plates 171 are provided, each electrode plate is composed of two rows of electrode plates, and a cell placement area is formed between the two rows of electrode plates.

With this arrangement, one formation layer plate can hold more cells. For the integral formation equipment, the two formation clamps are arranged in the length direction L, so that the volume of the formation equipment can be reduced under the condition of placing more batteries.

In addition, in the embodiment, the length of the formation layer plate 11 is longer, and only two end parts are supported by the upright posts, so in order to avoid deformation of the formation layer plate, the formation layer plate 11 is formed integrally, and the two end parts are ensured to have certain strength; guide round holes are formed in the two end parts, and the stand columns penetrate through the complete round holes, so that the stability of the support is guaranteed. The elastic members and guide pieces that assist in moving the formation sheet 11 on the posts 14 are also structurally more stable, reducing costs and improving the life of the entire formation jig.

The terms "first," "second," "third," and the like in this disclosure are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", and "a third" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise. All directional indications (such as up, down, left, right, front, back … …) in the embodiments of the present application are merely used to explain the relative positional relationship, movement, etc. between the components in a particular gesture (as shown in the drawings), and if the particular gesture changes, the directional indication changes accordingly. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those listed steps or elements but may include other steps or elements not listed or inherent to such process, method, article, or apparatus.

The foregoing is only the embodiments of the present application, and therefore, the patent scope of the application is not limited thereto, and all equivalent structures or equivalent processes using the descriptions of the present application and the accompanying drawings, or direct or indirect application in other related technical fields, are included in the scope of the application.

Claims

1. A formation ply, the formation ply comprising:

the heat conduction heating plate is integrally formed, and guide round holes are formed at two ends of the heat conduction heating plate in the length direction;

The charging and discharging assembly is arranged on the heat-conducting heating plate and comprises at least three groups of electrode plates, the at least three groups of electrode plates are sequentially arranged along the length direction of the heat-conducting heating plate, each group of electrode plates comprises two rows of electrode plates, and a battery placing area is formed between the two rows of electrode plates.

2. The formation plate according to claim 1, wherein the heat-conductive heating plate is formed with a hollow cavity penetrating in a length direction, and the hollow cavity is formed with a support rib therein.

3. A forming jig, characterized in that the forming jig comprises:

A plurality of laminated formation plates, wherein the formation plates are as claimed in claim 1 or 2, and elastic pieces are arranged between every two adjacent formation plates;

The output layer plate is arranged above the plurality of formation layer plates;

The output driving piece is connected with the output laminate, and applies pressure to the plurality of formation laminate plates through the output laminate so that adjacent formation laminate plates are close to each other under the action of the pressure, and the elastic piece generates acting force at the moment; the force-exerting driving piece does not exert pressure, and the formation layer plates recover to be mutually spaced under the action of the force exerted by the force-exerting driving piece;

And the stand column penetrates through the guide round holes of the output laminate and the formation laminate, and the formation laminate moves along the stand column.

4. A forming clamp according to claim 3, wherein the elastic member is a snap spring, and is clamped between two adjacent forming layers.

5. The chemical-mechanical polishing fixture according to claim 4, wherein two adjacent chemical-mechanical polishing plates are provided with clamping holes on opposite surfaces thereof, and two ends of the clamping spring are detachably clamped in the clamping holes respectively.

6. The formation jig according to claim 4, wherein guide pieces are connected between each two adjacent formation layer plates, guide grooves are provided on the guide pieces, and the guide grooves are provided to extend in the lamination direction of the formation layer plates; one of the two adjacent formation plates is fixedly connected with the guide plate, and the other is movably arranged in the guide groove so as to achieve mutual approaching and mutual spacing;

The formation layer plate comprises a top surface, a bottom surface, two first side surfaces and two second side surfaces, wherein the two first side surfaces are oppositely arranged, and the two second side surfaces are oppositely arranged, and the guide sheets are respectively arranged on the two first side surfaces.

7. The forming clamp of claim 6, wherein the snap spring protrudes from the second side.

8. The forming jig according to claim 6, wherein a first side of the forming layer plate is provided with a first connection hole, a second connection hole and a third connection hole arranged in an array, a first guide piece between a first forming layer plate and a second forming layer plate is connected to the first connection hole from top to bottom, a second guide piece between the second forming layer plate and a third forming layer plate is connected to the second connection hole, and a third guide piece between a third forming layer plate and a fourth forming layer plate is connected to the third connection hole; the first guide piece, the second guide piece and the third guide piece are arranged in a staggered mode.

9. A forming apparatus, characterized in that it comprises a forming jig according to any one of claims 3-8.

10. The forming apparatus of claim 9, wherein the forming apparatus comprises at least two forming jigs, the at least two forming jigs being disposed in sequence along a length direction of the heat conductive heating plate.