Formation equipment and battery manufacturing equipment

Abstract

The utility model discloses formation equipment and battery manufacturing equipment. The formation equipment comprises a clamping mechanism and a fluid infusion formation device, the clamping mechanism is provided with a plurality of clamping positions used for clamping the single batteries, and the multiple clamping positions are sequentially arranged in the first direction. The liquid supplementing formation device comprises a press machine bracket and a liquid supplementing exhaust valve, the press machine bracket is arranged on one side of the clamping mechanism along the second direction, the second direction is intersected with the first direction, and the liquid supplementing exhaust valve is used for being connected with a negative pressure mechanism or a liquid supplementing device so as to perform liquid injection and exhaust on the battery monomers. A plurality of clamping positions can clamp a plurality of battery monomers at the same time, so that the number of the battery monomers formed at a time is increased, and the production efficiency is improved. And the liquid supplementing and exhausting valve is arranged to carry out formation, exhausting, liquid supplementing and other operations on the battery monomers on the clamping positions, so that the transfer of the battery monomers is reduced, the formation, liquid supplementing and aging efficiency of the battery monomers is improved, and the production efficiency of the battery monomers is improved.

Description

Technical Field

[0001] The present application relates to the field of batteries, and in particular to a formation device and a battery manufacturing device. Background Art

[0002] Battery cells are widely used in electronic devices, such as mobile phones, laptop computers, electric vehicles, electric cars, electric airplanes, electric ships, electric toy cars, electric toy ships, electric toy airplanes, electric tools, and energy storage systems, etc. Battery cells can include nickel-cadmium battery cells, nickel-hydrogen battery cells, lithium-ion battery cells, sodium-ion battery cells, and secondary alkaline zinc-manganese battery cells, etc.

[0003] With the popularization and application of new energy products, the market has put forward higher requirements on the production efficiency of battery cells. The production process of battery cells includes formation and rehydration, so how to improve the efficiency of formation and rehydration has become one of the research directions in this field. Utility Model Content

[0004] In view of the above problems, the present application provides a formation device and a battery manufacturing device, which can improve the efficiency of battery monomer formation, liquid injection and liquid replenishment.

[0005] In the first aspect, the present application provides a formation device, including a clamping mechanism and a rehydration formation device. The clamping mechanism has a plurality of clamping positions for clamping a battery cell, and the plurality of clamping positions are arranged in sequence along a first direction. The rehydration formation device includes a press support and a rehydration exhaust valve, the press support is arranged on one side of the clamping mechanism along a second direction, the second direction intersects with the first direction, and the rehydration exhaust valve is used to connect a negative pressure mechanism or a rehydration device to inject and exhaust the battery cell.

[0006] In the technical solution of the embodiment of the present application, a clamping mechanism is provided to clamp the battery cells, thereby limiting the movement of the battery cells during the formation process and improving the efficiency of the formation process. Multiple clamping positions can clamp multiple battery cells at the same time, thereby increasing the number of battery cells formed at one time and improving production efficiency. A refilling and exhaust valve is provided to perform operations such as formation, exhaust, and refilling on the battery cells on the clamping position, thereby reducing the transportation of battery cells, improving the efficiency of formation, refilling, and aging of battery cells, and thus improving the production efficiency of battery cells.

[0007] In some embodiments, the clamping mechanism includes a support frame, a first guide rod, a first partition and a fixed plate. The support frame includes two side plates arranged along a first direction and a bottom plate connected between the two side plates. The two ends of the first guide rod are respectively connected to the two side plates, and the first guide rod is slidably connected to the side plates. There are multiple first partitions, and multiple first partitions are arranged at intervals along the first direction, and the first partition is connected to the first guide rod. The fixed plate is arranged on the bottom plate, and the fixed plate is arranged opposite to the first partition, and a clamping position is formed between the first partition and the fixed plate. Among them, the first partition can move along the first direction to adjust the clamping width of the clamping position. In the above technical solution, a support frame is provided to provide stable support for the battery cell, the first guide rod, the first partition and the fixed plate, thereby improving the stability of the formation and aging process. The first guide rod is slidably connected to the side plate, and the movement of the first guide rod can drive the first partition to move, thereby adjusting the distance between the first partition and the fixed plate, and can provide clamping positions with different widths to adapt to battery cells with different thicknesses, thereby increasing the adaptability range of the clamping mechanism. Furthermore, the pressure exerted by the first separator on the battery cell can be increased by moving the first guide rod to discharge excess gas in the battery cell, reduce residual gas in the battery cell during the formation process, and improve the formation efficiency of the battery cell.

[0008] In some embodiments, the clamping mechanism includes a support frame, a first guide rod, a first partition, a second guide rod and a second partition. The support frame includes two side plates arranged along a first direction. The two ends of the first guide rod are respectively connected to the two side plates, and the first guide rod is slidably connected to the side plates. There are multiple first partitions, and the multiple first partitions are arranged at intervals along the first direction, and the first partitions are connected to the first guide rod. The two ends of the second guide rod are respectively connected to the two side plates, and the second guide rod is slidably connected to the side plates. There are multiple second partitions, and the multiple second partitions are arranged at intervals along the first direction, and the multiple second partitions are connected to the second guide rod. Wherein, a clamping position is formed between adjacent first partitions and second partitions, and the first partition and the second partition can be moved along the first direction to adjust the clamping width of the clamping position.

[0009] In the above structure, a support frame is provided to provide stable support for the battery cell, the first guide rod, the second partition, etc., thereby improving the stability of the formation and aging process. The first guide rod and the second guide rod are respectively connected to the side plate in a sliding manner. The movement of the first guide rod can drive the movement of the first partition, and the movement of the second guide rod can drive the movement of the second partition, thereby adjusting the distance between the first partition and the second partition, and providing clamping positions of different widths to adapt to battery cells of different thicknesses, thereby increasing the adaptability of the clamping mechanism. In addition, by moving the first guide rod and the second guide rod, the pressure applied by the first partition and the second partition to the battery cell can be increased to discharge excess gas in the battery cell, reduce the residual gas in the battery cell during the formation process, and improve the efficiency of the battery cell formation.

[0010] In some embodiments, the two side panels are respectively provided with a first through hole and a second through hole, the two ends of the first guide rod respectively pass through the first through holes of the two side panels and are slidably connected to the side panels, and the two ends of the second guide rod respectively pass through the second through holes of the two side panels and are slidably connected to the side panels. The clamping mechanism also includes a locking device, which is arranged on the side of the side panel away from the clamping position, and the locking device is respectively connected to the first guide rod and the second guide rod, and the locking device is used to limit the displacement of the first guide rod and the second guide rod. In the above structure, the first guide rod and the second guide rod are fixed by providing the first through hole and the second through hole, and at the same time, the first guide rod and the second guide rod can be easily moved along the first direction. The locking device is provided to fix the positions of the first guide rod and the second guide rod, limit the clamping width of the clamping position, and ensure the stability of the position of the battery cell during the formation process.

[0011] In some embodiments, the locking device includes a mounting seat, a connecting shaft, and an adapter assembly. The mounting seat is disposed on a side of the side plate away from the clamping position. The connecting shaft is rotatably connected to the mounting seat. The adapter assembly is disposed at the end of the connecting shaft, and the two ends of the adapter assembly are respectively connected to the first guide rod and the second guide rod, and the end of the adapter assembly can be extended and retracted along the first direction. In the above structure, the connecting shaft is connected to the support frame by providing a mounting seat, thereby improving the structural stability of the connecting shaft during rotation. The adapter assembly is provided to convert the rotation of the connecting shaft into the movement of the first guide rod along the first direction, thereby improving the accuracy and efficiency of the adjustment.

[0012] In some embodiments, the adapter assembly includes a connecting block and a first hinge block. The connecting block is connected to the end of the connecting shaft. The first end of the first hinge block is rotatably connected to one end of the connecting block, and the second end of the first hinge block is connected to the first guide rod. Wherein, the connecting shaft is rotatably connected to the mounting seat, and the rotation of the connecting shaft drives the first end of the first hinge block to rotate, and drives the second end of the first hinge block to move along the first direction. In the above structure, the first hinge block is connected to the connecting shaft by setting a connecting block, and moves under the rotation of the connecting shaft. The second end of the first hinge block moves along the first direction, driving the first guide rod to move along the second direction, and the position of the first guide rod can be adjusted, thereby adjusting the position of the first partition to adjust the clamping force of the first partition on the battery cell.

[0013] In some embodiments, the adapter assembly further includes a second hinge block. One end of the second hinge block is rotatably connected to an end of the connecting block away from the first hinge block, and the other end is connected to the second guide rod. The rotation of the connecting shaft drives the first end of the second hinge block to rotate, and drives the second end of the second hinge block to move along the first direction. In the above structure, the second end of the second hinge block moves along the first direction, driving the second guide rod to move along the second direction, and the position of the second guide rod can be adjusted, thereby adjusting the position of the second partition to adjust the clamping force of the first partition on the battery cell.

[0014] In some embodiments, the locking device further includes a support block, a slider and a convex tooth. The side plate of the support block is away from the clamping position, and the support block is arranged on the side of the connecting shaft along the second direction. The slider is slidably connected to the support block along the first direction, and the slider is provided with a rack extending along the first direction. A plurality of convex teeth are arranged along the circumference of the connecting shaft, and the convex teeth cooperate with the rack. The movement of the slider relative to the support block can drive the convex teeth to rotate, and the rotation of the convex teeth drives the connecting shaft to rotate. In the above structure, a stable mounting surface is provided for the slider by arranging the support block to be connected to the side plate. The slider moves along the first direction, and drives the connecting shaft to rotate through the rack and the convex teeth to adjust the position of the first guide rod and the second guide rod.

[0015] In some embodiments, the press support includes a support rod, a connecting plate and a pressing plate. There are multiple support rods, and the connecting plate is arranged on the support rod, and the connecting plate is arranged on one side of the clamping mechanism along the second direction. The pressing plate is arranged on the connecting plate, and a refilling hole is arranged on the pressing plate, and the refilling hole is used to set the refilling exhaust valve. In the above structure, support rods are arranged to provide support for the connecting plate and the pressing plate, and the connecting plate connects multiple support rods to improve the stability of the structure. The pressing plate is used to support the refilling exhaust valve to realize operations such as refilling, formation and aging of the battery cell.

[0016] In some embodiments, the refilling and exhausting valve includes a valve body and an injection tube, a negative pressure tube and a positive pressure tube arranged on the valve body. The injection tube is used to connect to an electrolyte supply source, the negative pressure tube is used to connect to a negative pressure mechanism, and the positive pressure tube is used to connect to a compressed air supply source. In the above structure, by arranging an injection tube on the valve body, operations such as injection and refilling of the battery cell can be realized. Arranging a positive pressure tube can provide pressure for the electrolyte reflux of the battery cell and improve the efficiency of electrode liquid infiltration. Arranging a negative pressure tube can discharge excess gas in the battery cell, reduce gas impurities in the battery cell, improve the yield rate of the battery cell, ensure the stability of the battery cell operation process, and extend the cycle life of the battery cell.

[0017] In a second aspect, the present application provides a battery manufacturing device, which includes the formation equipment in the above embodiment.

[0018] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The features, advantages and technical effects of exemplary embodiments of the present application will be described below with reference to the accompanying drawings.

[0020] Figure 1 This is a schematic diagram of the structure of a formation device according to an embodiment of the present application;

[0021] Figure 2 This is a schematic structural diagram of a clamping mechanism according to an embodiment of the present application;

[0022] Figure 3 A schematic diagram of the structure of a formation device according to another embodiment of the present application;

[0023] Figure 4 This is a schematic structural diagram of a clamping mechanism according to another embodiment of the present application;

[0024] Figure 5 for Figure 1 A schematic diagram of the enlarged structure of the middle circle A;

[0025] Figure 6 This is a schematic structural diagram of a liquid replenishment formation device according to one embodiment of the present application;

[0026] Figure 7 This is a schematic diagram of the structure of a liquid replenishment and exhaust valve according to an embodiment of the present application.

[0027] DETAILED DESCRIPTION OF REFERENCE NUMERALS

[0028] 1. Formation equipment; X, first direction; Y, second direction; Z, third direction; 10. Clamping mechanism; 101. Support frame; 102. First guide rod; 103. First partition; 104. Fixed plate; 105. Clamping position; 106. Side plate; 107. Bottom plate; 108. Second guide rod; 109. Second partition; 110. First through hole; 111. Second through hole; 112. Locking device; 113. Mounting seat; 114. Connecting shaft; 115. Adapter assembly; 1 16. Connecting block; 117. First hinge block; 118. Second hinge block; 119. Support block; 120. Sliding block; 121. Protruding teeth; 122. Rack; 123. Positioning pin; 124. Slide plate; 20. Fluid replenishment formation device; 201. Press support; 202. Fluid replenishment exhaust valve; 203. Support rod; 204. Connecting plate; 205. Press plate; 206. Valve body; 207. Liquid injection tube; 208. Negative pressure tube; 209. Positive pressure tube; 210. Fluid replenishment hole. DETAILED DESCRIPTION

[0029] The following embodiments of the technical solution of the present application are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0031] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0032] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0033] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of the associated objects, indicating that there may be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0034] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0035] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the embodiments of the present application.

[0036] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0037] In the production process of the battery, after the electrode assembly in the battery cell is installed, the electrolyte is then injected into the shell. After the injection is completed, a formation process is required to form a solid electrolyte interface film, referred to as SEI film (solid electrolyte interphase film layer), on the surface of the electrode plate. In order to form a complete SEI film, the battery cell needs to be charged with a small current, and this step is called formation film formation. Gases are generated during the formation process, which have a negative impact on the formation speed. At the same time, if these gases remain inside the battery cell, they will also cause lithium precipitation during the use of the battery cell. In order to timely discharge the gas generated during the formation film formation to improve the formation efficiency, the battery cell needs to be kept in a high-temperature negative pressure environment during the formation process. Therefore, a negative pressure mechanism will be connected to the injection hole of the battery cell to absorb the gas in time to prevent the appearance of pores inside the shell, which will cause incomplete formation of the surface of the pole piece, black spots and lithium precipitation. In a high-temperature negative pressure environment, the electrolyte in the battery cell will be partially drawn away by the negative pressure mechanism, resulting in electrolyte loss. In addition, the boiling point of the electrolyte will change with the negative pressure, and it will turn into gas during the formation process. As the gas generated by the formation is extracted, further electrolyte loss will occur. Therefore, the battery cells need to be replenished.

[0038] In summary, the formation process requires liquid injection, negative pressure exhaust and liquid replenishment of the battery cells. In conventional technology, different equipment is used for liquid injection, exhaust and liquid replenishment respectively. The battery cells are transported many times, resulting in reduced efficiency and high production costs.

[0039] In order to solve the above-mentioned problems and improve production efficiency, the embodiments of the present application provide a formation equipment that can perform operations such as filling, exhausting and replenishing liquid on battery cells. By setting a clamping mechanism, the battery cells are clamped to limit the movement of the battery cells during the formation process, thereby improving the efficiency of the formation process. Multiple clamping positions can clamp multiple battery cells at the same time, increase the number of battery cells formed at one time, and improve production efficiency. A replenishment and exhaust valve is set to perform operations such as filling, exhausting and replenishing liquid on the battery cells on the clamping position, reduce the transportation of battery cells, and improve the efficiency of battery cell formation, replenishment and aging, thereby improving the production efficiency of battery cells.

[0040] The following is a detailed description of the chemical formation equipment 1 of the present application in conjunction with the accompanying drawings. Figures 1 to 5 , Figure 1 This is a schematic diagram of the structure of a formation device 1 according to an embodiment of the present application. Figure 2 This is a schematic structural diagram of a clamping mechanism 10 according to an embodiment of the present application. Figure 3 This is a schematic diagram of the structure of a formation device 1 according to another embodiment of the present application. Figure 4 This is a schematic structural diagram of a clamping mechanism 10 according to another embodiment of the present application. Figure 5 for Figure 1 Schematic diagram of the enlarged structure of the middle circle A.

[0041] As shown in the figure, the formation equipment 1 of the embodiment of the present application includes a clamping mechanism 10 and a rehydration formation device 20. The clamping mechanism 10 has a plurality of clamping positions 105 for clamping battery cells, and the plurality of clamping positions 105 are arranged in sequence along the first direction X. The rehydration formation device 20 includes a press support 201 and a rehydration exhaust valve 202, the press support 201 is arranged on one side of the clamping mechanism 10 along the second direction Y, and the second direction Y intersects with the first direction X, and the rehydration exhaust valve 202 is used to connect a negative pressure mechanism or a rehydration device to inject and exhaust the battery cells.

[0042] In the technical solution of the embodiment of the present application, a clamping mechanism 10 is provided to clamp the battery cells, limit the movement of the battery cells during the formation process, and improve the efficiency of the formation process. A plurality of clamping positions 105 can clamp a plurality of battery cells at the same time, increase the number of battery cells formed at one time, and improve production efficiency. A refilling and exhaust valve 202 is provided to perform operations such as formation, exhaust, and refilling on the battery cells on the clamping position 105, reduce the transportation of battery cells, and improve the efficiency of formation, refilling, and aging of battery cells, thereby improving the production efficiency of battery cells.

[0043] In an embodiment of the present application, the clamping position 105 can be a space formed by a clamping plate to limit the clamped object. The clamping position 105 clamps the battery cell from at least three directions to ensure the stability of the battery cell during the formation process. The press support 201 can be connected to the clamping structure to improve the positioning accuracy between the rehydration and exhaust valve 202 and the battery cell injection hole. In addition, the number of rehydration and exhaust valves 202 is set corresponding to the number of battery cells.

[0044] like Figure 2As shown, in some embodiments of the present application, the clamping mechanism 10 includes a support frame 101, a first guide rod 102, a first partition plate 103 and a fixed plate 104. The support frame 101 includes two side plates 106 arranged along the first direction X and a bottom plate 107 connected between the two side plates 106. The two ends of the first guide rod 102 are respectively connected to the two side plates 106, and the first guide rod 102 is slidably connected to the side plates 106. There are multiple first partition plates 103, and the multiple first partition plates 103 are arranged at intervals along the first direction X, and the first partition plates 103 are connected to the first guide rod 102. The fixed plate 104 is arranged on the bottom plate 107, and the fixed plate 104 is arranged opposite to the first partition plate 103, and a clamping position 105 is formed between the first partition plate 103 and the fixed plate 104. Among them, the first partition plate 103 can move along the first direction X to adjust the clamping width of the clamping position 105.

[0045] Exemplarily, the first guide rod 102 may sequentially pass through the first partition plate 103 and the fixed plate 104 along the first direction X, and a fixed connection piece is provided between the first guide rod 102 and the first partition plate 103 to improve the connection stability between the first guide rod 102 and the first partition plate 103, so that the first partition plate 103 moves along the first direction X under the drive of the first guide rod 102. A sliding connection is formed between the first guide rod 102 and the fixed plate 104, and the fixed plate 104 is fixedly connected to the bottom plate 107, so that the first guide rod 102 moves while the fixed plate 104 does not move.

[0046] In the above technical solution, a support frame 101 is provided to provide stable support for the battery cell, the first guide rod 102, the first partition 103 and the fixed plate 104, thereby improving the stability of the formation and aging process. The first guide rod 102 is slidably connected to the side plate 106. The movement of the first guide rod 102 can drive the first partition 103 to move, thereby adjusting the distance between the first partition 103 and the fixed plate 104, and can provide clamping positions 105 of different widths to adapt to battery cells of different thicknesses, thereby increasing the adaptability range of the clamping mechanism 10. In addition, by moving the first guide rod 102, the pressure applied by the first partition 103 to the battery cell can be increased to discharge excess gas in the battery cell, reduce the residual gas in the battery cell during the formation process, and improve the efficiency of the battery cell formation.

[0047] In some optional embodiments, the number of the first guide rods 102 is two, and the two first guide rods 102 are respectively arranged along the third direction Z at intervals, and the third direction Z intersects with the plane where the first direction X and the second direction Y are located. By arranging the two first guide rods 102 along the third direction Z, the strength of the connection between the first guide rod 102 and the first separator 103 and the balance of the force applied to the first separator 103 can be improved, thereby increasing the pressure on the battery cell clamping.

[0048] In some optional embodiments, the first direction X, the second direction Y and the third direction Z are perpendicular to each other. For example, the first direction X can be the thickness direction of the side plate 106 , the second direction is the width direction of the side plate 106 , and the third direction is the length direction of the side plate 106 .

[0049] like Figure 3 as well as Figure 4 As shown, in some embodiments of the present application, the clamping mechanism 10 includes a support frame 101, a first guide rod 102, a first baffle 103, a second guide rod 108 and a second baffle 109. The support frame 101 includes two side plates 106 arranged along a first direction X. The two ends of the first guide rod 102 are respectively connected to the two side plates 106, and the first guide rod 102 is slidably connected to the side plates 106. There are multiple first baffles 103, multiple first baffles 103 are arranged at intervals along the first direction X, and the first baffles 103 are connected to the first guide rod 102. The two ends of the second guide rod 108 are respectively connected to the two side plates 106, and the second guide rod 108 is slidably connected to the side plates 106. There are multiple second baffles 109, multiple second baffles 109 are arranged at intervals along the first direction X, and multiple second baffles 109 are connected to the second guide rod 108. A clamping position 105 is formed between the adjacent first partition plates 103 and the second partition plates 109 . The first partition plates 103 and the second partition plates 109 can move along the first direction X to adjust the clamping width of the clamping position 105 .

[0050] Exemplarily, the first guide rod 102 can sequentially pass through the first partition 103 and the second partition 109 along the first direction X, and a fixed connection piece is provided between the first guide rod 102 and the first partition 103 to improve the connection stability between the first guide rod 102 and the first partition 103, so that the first partition 103 moves along the first direction X under the drive of the first guide rod 102. A sliding connection is formed between the first guide rod 102 and the second partition 109, and the first guide rod 102 moves while the second partition 109 does not move. Similarly, the second guide rod 108 is fixedly connected to the second partition 109, and the second guide rod 108 is slidably connected to the first partition 103, which will not be described in detail here.

[0051] In the above structure, by setting the support frame 101 to provide stable support for the battery cell, the first guide rod 102, the second partition plate 109, etc., the stability of the formation and aging process is improved. The first guide rod 102 and the second guide rod 108 are respectively connected to the side plate 106 in a sliding manner. The movement of the first guide rod 102 can drive the first partition plate 103 to move, and the movement of the second guide rod 108 can drive the second partition plate 109 to move, thereby adjusting the distance between the first partition plate 103 and the second partition plate 109, and providing clamping positions 105 of different widths to adapt to battery cells of different thicknesses, thereby increasing the adaptability range of the clamping mechanism 10. In addition, by moving the first guide rod 102 and the second guide rod 108, the pressure applied by the first partition plate 103 and the second partition plate 109 to the battery cell can be increased to discharge excess gas in the battery cell, reduce the residual gas in the battery cell during the formation process, and improve the efficiency of the battery cell formation. In some optional embodiments, the number of the second guide rods 108 is two, and the two second guide rods 108 are respectively arranged along the third direction Z at intervals, and the third direction Z intersects the second direction Y and the plane where the second direction Y is located. By arranging the two second guide rods 108 along the third direction Z, the strength of the connection between the second guide rods 108 and the second separator 109 and the balance of the force applied to the second separator 109 can be improved, thereby increasing the pressure on the battery cell clamping.

[0052] Please refer to Figure 1 In some embodiments of the present application, the two side plates 106 are respectively provided with a first through hole 110 and a second through hole 111, the two ends of the first guide rod 102 respectively pass through the first through holes 110 of the two side plates 106, and are slidably connected to the side plates 106, and the two ends of the second guide rod 108 respectively pass through the second through holes 111 of the two side plates 106, and are slidably connected to the side plates 106. The clamping mechanism 10 further includes a locking device 112, which is disposed on a side of the side plate 106 away from the clamping position 105, and is respectively connected to the first guide rod 102 and the second guide rod 108, and is used to limit the displacement of the first guide rod 102 and the second guide rod 108.

[0053] In the above structure, the first through hole 110 and the second through hole 111 are provided to fix the first guide rod 102 and the second guide rod 108, and at the same time, the first guide rod 102 and the second guide rod 108 can be easily moved along the first direction X. The locking device 112 is provided to fix the positions of the first guide rod 102 and the second guide rod 108, limit the clamping width of the clamping position 105, and ensure the stability of the position of the battery cell during the formation process.

[0054] In some embodiments of the present application, the locking device 112 includes a mounting seat 113, a connecting shaft 114 and an adapter assembly 115. The mounting seat 113 is disposed on the side of the side plate 106 away from the clamping position 105. The connecting shaft 114 is rotatably connected to the mounting seat 113. The adapter assembly 115 is disposed at the end of the connecting shaft 114, and the two ends of the adapter assembly 115 are respectively connected to the first guide rod 102 and the second guide rod 108, and the end of the adapter assembly 115 can move along the first direction X. In the above structure, the connecting shaft 114 is connected to the support frame 101 by providing the mounting seat 113, thereby improving the structural stability of the connecting shaft 114 during the rotation process. The adapter assembly 115 is provided to convert the rotation of the connecting shaft 114 into the movement of the first guide rod 102 along the first direction X, thereby improving the accuracy and efficiency of the adjustment.

[0055] In some embodiments of the present application, the adapter assembly 115 includes a connecting block 116 and a first hinge block 117. The connecting block 116 is connected to the end of the connecting shaft 114. The first end of the first hinge block 117 is rotatably connected to one end of the connecting block 116, and the second end of the first hinge block 117 is connected to the first guide rod 102. Among them, the connecting shaft 114 is rotatably connected to the mounting seat 113, and the rotation of the connecting shaft 114 drives the first end of the first hinge block 117 to rotate, and drives the second end of the first hinge block 117 to move along the first direction X. In the above structure, the first hinge block 117 is connected to the connecting shaft 114 by setting the connecting block 116, and moves under the rotation of the connecting shaft 114. The second end of the first hinge block 117 moves along the first direction X, driving the first guide rod 102 to move along the second direction Y, and the position of the first guide rod 102 can be adjusted, so as to adjust the position of the first partition 103 to adjust the clamping force of the first partition 103 on the battery cell.

[0056] In some embodiments of the present application, the adapter assembly 115 further includes a second hinge block 118. One end of the second hinge block 118 is rotatably connected to one end of the connecting block 116 away from the first hinge block 117, and the other end is connected to the second guide rod 108. The connecting shaft 114 rotates to drive the first end of the second hinge block 118 to rotate, and drives the second end of the second hinge block 118 to move along the first direction X. In the above structure, the second end of the second hinge block 118 moves along the first direction X, driving the second guide rod 108 to move along the second direction Y, and the position of the second guide rod 108 can be adjusted, thereby adjusting the position of the second partition 109 to adjust the clamping force of the first partition 103 on the battery cell.

[0057] Please refer to Figure 1 as well as Figure 5In some embodiments of the present application, the locking device 112 further includes a support block 119, a slider 120 and a convex tooth 121. The support block 119 is on the side of the side plate 106 away from the clamping position 105, and the support block 119 is arranged on the side of the connecting shaft 114 along the second direction Y. The slider 120 is slidably connected to the support block 119 along the first direction X, and the slider 120 is provided with a rack 122 extending along the first direction X. A plurality of convex teeth 121 are arranged along the circumference of the connecting shaft 114, and the convex teeth 121 cooperate with the rack 122. Among them, the movement of the slider 120 relative to the support block 119 can drive the convex teeth 121 to rotate, and the rotation of the convex teeth 121 drives the connecting shaft 114 to rotate. In the above structure, by setting the support block 119 to be connected to the side plate 106, a stable mounting surface is provided for the slider 120. The slider 120 moves along the first direction X and drives the connecting shaft 114 to rotate through the rack 122 and the protruding teeth 121 to adjust the positions of the first guide rod 102 and the second guide rod 108 .

[0058] In some optional embodiments, the adapter assembly 115 further includes a positioning pin 121 , which passes through the slider 120 and abuts against the support block 119 , so as to limit the movement of the slider 120 relative to the support block 119 .

[0059] Exemplarily, by pushing the slider 120 to move relative to the support block 119, the rack 122 on the slider moves along the first direction, and the protruding tooth 121 rotates under the movement of the rack 122 and drives the connecting shaft 114 to rotate. The connecting shaft 114 rotates, driving the connecting block 116 to rotate. The first end of the first hinge block 117 moves, and the second end also moves accordingly. The first guide rod 102 is also connected to a slide plate 124, and the second end of the first hinge block 117 is connected to the slide plate 124. The movement of the first hinge block 117 drives the slide plate 124 to move along the first direction X, thereby driving the first guide rod 102 to move along the first direction X. After adjusting the relative position, the relative position between the first hinge block 117 and the connecting block 116 is fixed by screws or rivets, and the positioning pin 123 is inserted into the slider 120 and abuts against the support block 119 to limit the displacement of the slider 120, so as to achieve the locking of the position of the first guide rod 102.

[0060] like Figure 6As shown, in some embodiments of the present application, the press support 201 includes a support rod 203, a connecting plate 204 and a pressing plate 205. There are multiple support rods 203, and the connecting plate 204 is arranged on the support rod 203. The connecting plate 204 is arranged on one side of the clamping mechanism 10 along the second direction Y. The pressing plate 205 is arranged on the connecting plate 204, and a refilling hole 210 is provided on the pressing plate 205. The refilling hole 210 is used to set the refilling exhaust valve 202. In the above structure, the support rod 203 is provided to provide support for the connecting plate 204 and the pressing plate 205, and the connecting plate 204 connects multiple support rods 203 to improve the stability of the structure. The pressing plate 205 is used to support the refilling exhaust valve 202 to realize operations such as refilling, formation and aging of the battery cell.

[0061] like Figure 7 As shown, in some embodiments of the present application, the refilling and exhausting valve 202 includes a valve body 206 and a liquid injection tube 207, a negative pressure tube 208 and a positive pressure tube 209 arranged on the valve body 206. The liquid injection tube 207 is used to connect the electrolyte supply source, the negative pressure tube 208 is used to connect the negative pressure mechanism, and the positive pressure tube 209 is used to connect the compressed air supply source. In the above structure, by arranging the liquid injection tube 207 on the valve body 206, the battery cell can be injected, replenished and other operations can be realized. The positive pressure tube 209 can provide pressure for the electrolyte reflux of the battery cell, thereby improving the efficiency of electrolyte infiltration. The negative pressure tube 208 is arranged to discharge the excess gas in the battery cell, reduce the gas impurities in the battery cell, improve the yield rate of the battery cell, ensure the stability of the battery cell operation process, and extend the cycle life of the battery cell.

[0062] The embodiments of the present application also provide a battery manufacturing device, which includes the formation device 1 in the above embodiment. By setting a clamping mechanism 10, the battery cells are clamped, the movement of the battery cells during the formation process is restricted, and the efficiency of the formation process is improved. A plurality of clamping positions 105 can clamp a plurality of battery cells at the same time, increase the number of battery cells formed at one time, and improve production efficiency. A refilling and exhaust valve 202 is provided to perform operations such as formation, exhaust, and refilling on the battery cells on the clamping position 105, reduce the transportation of battery cells, and improve the efficiency of formation, refilling, and aging of battery cells, thereby improving the production efficiency of battery cells.

[0063] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. A chemical formation device (1), characterized in that: include: A clamping mechanism (10) having a plurality of clamping positions (105) for clamping a battery cell, wherein the plurality of clamping positions (105) are arranged in sequence along a first direction (X); The liquid replenishment formation device (20) comprises a press support (201) and a liquid replenishment exhaust valve (202), wherein the press support (201) is arranged on one side of the clamping mechanism (10) along a second direction (Y), the second direction (Y) intersecting the first direction (X), and the liquid replenishment exhaust valve (202) is used to connect to a negative pressure mechanism or a liquid replenishment device to inject liquid into and exhaust gas from a battery cell.

2. The chemical formation equipment (1) according to claim 1, characterized in that: The clamping mechanism (10) comprises: A support frame (101) comprising two side plates (106) arranged along the first direction (X) and a bottom plate (107) connected between the two side plates (106); A first guide rod (102), both ends of which are respectively connected to the two side plates (106), and the first guide rod (102) is slidably connected to the side plates (106); A plurality of first baffles (103), the plurality of first baffles (103) being arranged at intervals along a first direction (X), and the first baffles (103) being connected to the first guide rod (102); A fixing plate (104) is arranged on the bottom plate (107), the fixing plate (104) is arranged opposite to the first partition plate (103), and the clamping position (105) is formed between the first partition plate (103) and the fixing plate (104). The first partition plate (103) is movable along the first direction (X) to adjust the clamping width of the clamping position (105).

3. The chemical formation equipment (1) according to claim 1, characterized in that: The clamping mechanism (10) comprises: A support frame (101) comprising two side plates (106) arranged along the first direction (X); A first guide rod (102), both ends of which are respectively connected to the two side plates (106), and the first guide rod (102) is slidably connected to the side plates (106); A plurality of first baffles (103), the plurality of first baffles (103) being arranged at intervals along a first direction (X), and the first baffles (103) being connected to the first guide rod (102); A second guide rod (108), two ends of which are respectively connected to the two side plates (106), and the second guide rod (108) is slidably connected to the side plates (106); A plurality of second baffles (109), the plurality of second baffles (109) being arranged at intervals along the first direction (X), and the plurality of second baffles (109) being connected to the second guide rod (108); The clamping position (105) is formed between the adjacent first partitions (103) and the second partitions (109), and the first partitions (103) and the second partitions (109) can be moved along the first direction (X) to adjust the clamping width of the clamping position (105).

4. The chemical formation equipment (1) according to claim 3, characterized in that: The two side plates (106) are respectively provided with a first through hole (110) and a second through hole (111); two ends of the first guide rod (102) respectively pass through the first through holes (110) of the two side plates (106) and are slidably connected to the side plates (106); two ends of the second guide rod (108) respectively pass through the second through holes (111) of the two side plates (106) and are slidably connected to the side plates (106); The clamping mechanism (10) further comprises a locking device (112), wherein the locking device (112) is arranged on a side of the side plate (106) away from the clamping position (105), and the locking device (112) is respectively connected to the first guide rod (102) and the second guide rod (108), and the locking device (112) is used to limit the displacement of the first guide rod (102) and the second guide rod (108).

5. The chemical formation device (1) according to claim 4, characterized in that: The locking device (112) comprises: A mounting seat (113) is disposed on a side of the side plate (106) away from the clamping position (105); A connecting shaft (114) connected to the mounting seat (113); A transition assembly (115) is arranged at the end of the connecting shaft (114), and two ends of the transition assembly (115) are respectively connected to the first guide rod (102) and the second guide rod (108), and the end of the transition assembly (115) can be extended and retracted along the first direction (X).

6. The chemical formation device (1) according to claim 5, characterized in that: The adapter component (115) comprises: A connecting block (116) connected to the end of the connecting shaft (114); A first hinge block (117), a first end of which is rotatably connected to one end of the connection block (116), and a second end of which is connected to the first guide rod (102); The connecting shaft (114) is rotatably connected to the mounting seat (113), and the rotation of the connecting shaft (114) drives the first end of the first hinge block (117) to rotate, and drives the second end of the first hinge block (117) to move along the first direction (X).

7. The chemical formation device (1) according to claim 6, characterized in that: The adapter assembly (115) further comprises a second hinge block (118), one end of the second hinge block (118) being rotatably connected to an end of the connecting block (116) away from the first hinge block (117), and the other end of the second hinge block (118) being connected to the second guide rod (108), and the connecting shaft (114) being rotated to drive the first end of the second hinge block (118) to rotate, and to drive the second end of the second hinge block (118) to move along the first direction (X).

8. The chemical formation device (1) according to claim 5, characterized in that: The locking device (112) further comprises: A support block (119) is arranged on a side of the side plate (106) away from the clamping position (105), and the support block (119) is arranged on a side of the connecting shaft (114) along the second direction (Y); A slider (120) is slidably connected to the support block (119) along the first direction (X), and the slider (120) is provided with a rack (122) extending along the first direction (X); A plurality of convex teeth (121) are arranged along the circumference of the connecting shaft (114), and the convex teeth (121) cooperate with the rack (122). The movement of the sliding block (120) relative to the supporting block (119) can drive the protruding tooth (121) to rotate, and the rotation of the protruding tooth (121) drives the connecting shaft (114) to rotate.

9. The chemical formation equipment (1) according to any one of claims 1 to 8, characterized in that: The press support (201) comprises: Support rods (203), the number of which is plural; A connecting plate (204) is arranged on the supporting rod (203), and the connecting plate (204) is arranged on one side of the clamping mechanism (10) along the second direction (Y); A pressure plate (205) is arranged on the connecting plate (204), and a liquid replenishing hole (210) is arranged on the pressure plate (205). The liquid replenishing hole (210) is used to set the liquid replenishing exhaust valve (202).

10. The chemical formation device (1) according to claim 9, characterized in that: The liquid replenishment and exhaust valve (202) comprises a valve body (206) and a liquid injection tube (207), a negative pressure tube (208) and a positive pressure tube (209) arranged on the valve body (206); the liquid injection tube (207) is used to connect to an electrolyte supply source, the negative pressure tube (208) is used to connect to a negative pressure mechanism, and the positive pressure tube (209) is used to connect to a compressed air supply source.

11. A battery manufacturing device, characterized in that: The battery manufacturing equipment comprises the formation equipment (1) according to any one of claims 1 to 10.

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