Formation integrated clamp and formation processing device

Abstract

The embodiment of the utility model provides a formation integrated clamp and a formation processing device, and relates to the technical field of battery processing. The formation integrated clamp comprises a base mechanism, a connecting mechanism, a formation processing mechanism and a positioning mechanism, wherein the base mechanism comprises a base plate and a side plate detachably arranged on the circumferential edge of the base plate; the connecting mechanism is arranged on the side plate and is used for connecting the base mechanism with the battery cell restraining tray; the formation processing mechanism is arranged on the base mechanism, and the formation processing mechanism is used for performing formation processing on the battery cell in the battery cell restraining tray; and the positioning mechanism is arranged on the side plate and is used for positioning the formation processing mechanism so that the formation processing mechanism is aligned with the battery cell restraining tray. The formation processing device comprises the formation integration clamp and a battery cell restraining tray. The battery formation device has the advantages that the size of processing equipment is reduced, formation processing of batteries is facilitated, and meanwhile formation processing efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of battery production technology, and more specifically, to a formation integrated fixture and a formation processing device. Background Technology

[0002] Battery formation is a crucial step in battery manufacturing. It refers to the process of forming an effective passivation film (also known as a solid electrolyte interphase film, SEI film) on the surface of the battery electrodes during the first charge, and activating the electrochemical process of the battery electrode materials.

[0003] Currently, battery formation processing requires a charge-discharge voltage bed. However, the voltage bed has a fixed installation position, large equipment size, and fixed processing position, which is inconvenient for battery formation processing. Utility Model Content

[0004] The purpose of this utility model is to provide a formation integrated fixture and a formation processing device, which can facilitate the formation processing of batteries.

[0005] The embodiments of this utility model can be implemented as follows:

[0006] On the one hand, this utility model provides a chemically integrated fixture, which specifically includes: a base mechanism, the base mechanism including a base plate and a side plate detachably disposed on the circumferential edge of the base plate;

[0007] A connecting mechanism is provided on the side plate and is used to connect the base mechanism to the cell restraint tray.

[0008] The formation processing mechanism is mounted on the base mechanism and is used to perform formation processing on the battery cells in the battery cell restraint tray.

[0009] A positioning mechanism is provided on the side plate. The positioning mechanism is used to position the formation processing mechanism so that the formation processing mechanism is aligned with the cell restraint tray.

[0010] In an optional embodiment, the connecting mechanism includes a fixing pin, and a through hole is provided on the side plate for the fixing pin to pass through.

[0011] In an optional embodiment, the positioning mechanism includes a positioning pin disposed on the side plate, the positioning pin being used to engage with the cell restraint tray.

[0012] In an optional embodiment, the formation processing mechanism includes a negative pressure adsorption component and a charge-discharge component. Both the negative pressure adsorption component and the charge-discharge component are disposed on the base mechanism. The negative pressure adsorption component is used to draw negative pressure on the battery cell, and the charge-discharge component is used to charge and discharge the battery cell.

[0013] In an optional embodiment, the negative pressure adsorption assembly includes a negative pressure mounting plate, a negative pressure nozzle, an integrated negative pressure cup, and a negative pressure docking connector. The negative pressure mounting plate is detachably mounted on the substrate. Multiple negative pressure nozzles are mounted on the negative pressure mounting plate. The integrated negative pressure cup is mounted on the substrate and communicates with the multiple negative pressure nozzles. The negative pressure docking connector is mounted on the side plate and communicates with the integrated negative pressure cup.

[0014] In an optional embodiment, the charging and discharging assembly includes a probe mounting plate, charging and discharging probes, and quick connectors. The probe mounting plate is detachably mounted on the substrate. Multiple charging and discharging probes are mounted on the probe mounting plate and connected in series. The quick connectors are mounted on the side plate and are connected to the charging and discharging probes.

[0015] In an optional embodiment, the probe mounting plate is also provided with multiple temperature probes, a PCB board is provided on the substrate, the PCB board is connected to the charge / discharge probe and the temperature probes, and a sampling connector connected to the PCB board is provided on the side plate.

[0016] On the other hand, the present invention also provides a formation processing apparatus, which includes the aforementioned formation integrated fixture and a cell restraint tray, a connecting mechanism for connecting with the cell restraint tray, and a positioning mechanism for aligning the formation processing mechanism with the cell restraint tray.

[0017] In an optional embodiment, the connecting mechanism includes a fixing pin, and a through hole is provided on the side plate for the fixing pin to pass through.

[0018] A fixing seat is provided on the outer wall of the battery cell restraint tray, and the fixing seat has a plug hole for the fixing pin to pass through.

[0019] In an optional embodiment, the positioning mechanism includes a positioning pin disposed on the side plate, the positioning pin being used to engage with the cell restraint tray.

[0020] The cell restraint tray is equipped with a positioning seat for engaging with the positioning pin.

[0021] The beneficial effects of the chemical transformation integrated fixture and chemical transformation processing apparatus provided in this embodiment of the utility model include:

[0022] The connecting mechanism, positioning mechanism, and formation processing mechanism are integrated onto the base mechanism. The positioning mechanism aligns the formation processing mechanism with the cell restraint tray, and the connecting mechanism connects the base mechanism to the cell restraint tray. Thus, the formation processing mechanism performs formation processing on the cells within the cell restraint tray. By integrating the formation processing mechanism onto the base mechanism, the formation processing of the cells can be achieved simply by clamping the cell restraint tray with the integrated formation fixture. This eliminates the need to transport the cell restraint tray to the charge / discharge voltage bed for processing, reducing the size of the processing equipment, facilitating battery formation processing, and improving formation processing efficiency. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the structure of a chemical formation processing apparatus provided in this embodiment;

[0025] Figure 2 This is a schematic diagram of the structure of a chemically integrated fixture provided in this embodiment;

[0026] Figure 3 A schematic diagram of the substrate structure in a formation integration fixture is provided for an embodiment;

[0027] Figure 4 This is a schematic diagram of the side plate structure in a chemically integrated fixture provided in this embodiment;

[0028] Figure 5 for Figure 1 Enlarged view of section A in the middle;

[0029] Figure 6 This is a schematic diagram of the connection structure in an integrated assembly fixture provided in this embodiment;

[0030] Figure 7 This is a schematic diagram of the negative pressure adsorption component and the charge / discharge component in a chemical formation integrated fixture provided in this embodiment;

[0031] Figure 8 This is a schematic diagram of the connection structure between the PCB board and the integrated negative pressure cup in a formation integration fixture provided in this embodiment;

[0032] Figure 9 This is a schematic diagram of the structure of one side plate in a chemical bonding fixture provided in this embodiment;

[0033] Figure 10 This is a schematic diagram of the PCB board mounting structure in a formation integration fixture provided in this embodiment.

[0034] Figure label:

[0035] 100 – Integrated formation fixture; 110 – Base mechanism; 111 – Substrate; 112 – Side plate; 120 – Connection mechanism; 121 – Fixing pin; 122 – Through hole; 130 – Formation processing mechanism; 131 – Negative pressure adsorption assembly; 1311 – Negative pressure mounting plate; 1312 – Negative pressure nozzle; 1313 – Integrated negative pressure cup; 1314 – Negative pressure docking connector; 132 – Charge / discharge assembly; 1321 – Probe mounting plate; 1322 – Charge / discharge probe; 1323 – Quick connector; 133 – Temperature probe; 134 – PCB board; 135 – Sampling connector; 140 – Positioning mechanism; 141 – Positioning pin; 200 – Cell restraint tray; 210 – Fixing base; 211 – Insertion hole. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. The mechanisms of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0037] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0038] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0039] In the description of this utility model, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed during use, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0040] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0041] It should be noted that, where there is no conflict, the features in the embodiments of this utility model can be combined with each other.

[0042] Battery formation is a crucial step in battery manufacturing. It refers to the formation of an effective passivation film (also known as a solid electrolyte interphase, SEI film) on the battery electrode surface during the initial charge, and the activation of the electrochemical processes of the battery plate materials. This process enables the battery to meet design requirements and stabilizes its electrochemical performance, which is of paramount importance for the battery's subsequent normal use and cycle life, among other performance aspects.

[0043] Currently, battery formation is generally performed using a charge-discharge voltage bed. A cell restraint tray containing the battery cells is placed at a designated position on the charge-discharge voltage bed, and the formation equipment is installed on the slide of the charge-discharge voltage bed. By driving the slide to move down, the formation equipment comes into contact with the battery cells in the cell restraint tray, thereby performing formation processing on the battery cells.

[0044] The large size and large installation area of ​​the charge-discharge voltage bed equipment result in significant equipment and space costs during the battery formation process. In addition, the fixed installation position of the charge-discharge voltage bed requires the cell restraint tray to be moved to the charge-discharge voltage bed during battery formation, which is inconvenient for battery formation and leads to low battery formation efficiency.

[0045] To address the aforementioned technical problems, this utility model provides a formation integration fixture and a formation processing apparatus. The fixture integrates the necessary components for formation processing onto the formation integration fixture. When the formation integration fixture holds the cell restraint tray, the cells within the tray can be formed using the formation processing components integrated on the fixture. This eliminates the need for a bulky charge-discharge voltage bed, saving costs. Furthermore, it eliminates the need to move the cell restraint tray to the charge-discharge voltage bed for processing, improving battery formation processing efficiency.

[0046] The following describes in detail, through embodiments and in conjunction with the accompanying drawings, the overall structure, working principle, and technical effects of the chemical transformation integrated fixture and chemical transformation processing device provided by this utility model.

[0047] Please refer to Figure 1 and Figure 2 This utility model provides a formation processing apparatus for use in the field of battery formation processing. The apparatus includes an integrated formation fixture 100 and a cell restraint tray 200. The cell restraint tray 200 is used to hold the cells to be processed. The integrated formation fixture 100 is adapted to the cell restraint tray 200. When the integrated formation fixture 100 and the cell restraint tray 200 are connected, the cells are formed using the relevant components integrated on the integrated formation fixture 100.

[0048] Please refer to Figure 1 and Figure 2The present invention provides a formation integrated fixture 100, comprising a base mechanism 110, a connecting mechanism 120, a formation processing mechanism 130, and a positioning mechanism 140. The base mechanism 110 provides mounting space for the formation processing mechanism 130, the connecting mechanism 120, and the positioning mechanism 140. The base mechanism 110 includes a base plate 111 and a side plate 112 detachably disposed on the circumferential edge of the base plate 111. The size of the base plate 111 is adapted to the size of the cell restraint tray 200. The connecting mechanism 120 is disposed on the side plate 112 and is used to connect to the cell restraint tray 200, thereby connecting the base mechanism 110 to the cell restraint tray 200. The positioning mechanism 140 is disposed on the side plate 112 and is used to connect to the cell restraint tray 200, thereby positioning the formation processing mechanism 130 to align it with the cell restraint tray 200.

[0049] The formation processing mechanism 130, connecting mechanism 120, and positioning mechanism 140 are integrated onto the base mechanism 110. When processing the cells within the cell restraint tray 200, it is unnecessary to place the cell restraint tray 200 on the charge-discharge voltage bed. The formation processing mechanism 130 is aligned with the cell restraint tray 200 via the positioning mechanism 140, and the base mechanism 110 is connected to the cell restraint tray 200 via the connecting mechanism 120. Thus, the formation processing mechanism 130 performs formation processing on the cells within the cell restraint tray 200. This reduces equipment size, improves space utilization, saves infrastructure costs, and eliminates the need to move the cell restraint tray 200 to the charge-discharge voltage bed, thereby improving formation processing efficiency.

[0050] Please refer to Figure 3 and Figure 4 In this embodiment, the substrate 111 is a rectangular plate, and side plates 112 are mounted on all four circumferential edges of the substrate 111, with the four side plates 112 connected to form a structural frame. Multiple mounting holes are also provided on the substrate 111 for mounting the formation processing mechanism 130. Furthermore, to improve the structural strength of the substrate 111, a reinforcing plate is mounted on the substrate 111, and a notch is provided on the side plate 112 opposite to the reinforcing plate to accommodate the reinforcing plate.

[0051] Please refer to Figure 5 and Figure 6In some optional embodiments, the connecting mechanism 120 includes a fixing pin 121, and a through hole 122 is provided on the side plate 112 for the fixing pin 121 to pass through. Meanwhile, a fixing seat 210 is provided on the outer wall of the cell restraint tray 200. When the base mechanism 110 is connected to the cell restraint tray 200, the structural frame formed by the side plate 112 is located inside the fixing seat 210, and an insertion hole 211 is provided on the fixing seat 210 for the fixing pin 121 to pass through. Thus, when the base mechanism 110 is fixed to the cell restraint tray 200, the fixing pin 121 passes sequentially through the insertion hole 211 on the fixing seat 210 and the through hole 122 on the side plate 112, thereby fixing the side plate 112 to the cell restraint tray 200.

[0052] Furthermore, to facilitate the insertion and removal of the fixing pin 121, a pressing block is provided on the side of the fixing pin 121 away from the side plate 112. The diameter of the pressing block is larger than the diameter of the fixing pin 121. Also, to facilitate the rapid fixing and separation of the formation integration fixture 100 and the cell restraint tray 200, the fixing pin 121 includes a cylindrical portion and a flat portion. The flat portion is located at the end of the cylindrical portion away from the side plate 112. A insertion groove adapted to the flat portion is provided on the top of the fixing seat 210. The insertion groove communicates with the insertion hole 211, so that the fixing seat 210 can limit the cylindrical portion of the fixing pin 121 in the vertical direction, while the flat portion of the fixing pin 121 can disengage from the fixing seat 210 in the vertical direction through the insertion groove. Simultaneously, a spring is sleeved on the end of the fixing pin 121 near the side plate 112. When the spring is in a free-stretching state, the cylindrical portion of the fixing pin 121 is located within the insertion hole 211.

[0053] When quickly connecting the formation integration fixture 100 to the cell restraint tray 200, press the fixing pin 121 towards the side plate 112 to align the flat portion of the fixing pin 121 with the insertion slot, and then engage the fixing pin 121 into the fixing base 210 through the insertion slot. Release the fixing pin 121, and under the action of the spring, the fixing pin 121 moves away from the side plate 112, causing the cylindrical portion of the fixing pin 121 to move into the insertion hole 211, thereby achieving a quick connection between the formation integration fixture 100 and the cell restraint tray 200. When quickly separating the formation integration fixture 100 from the cell restraint tray 200, press the fixing pin 121 until the flat portion is aligned with the insertion slot, and then drive the formation integration fixture 100 to detach from the cell restraint tray 200.

[0054] Please refer to Figure 5 and Figure 6The positioning mechanism 140 includes a positioning pin 141, which is disposed on the side plate 112. The positioning pin 141 moves vertically and is used to engage with the cell restraint tray 200. A positioning seat is provided on the outer wall of the cell restraint tray 200, and a positioning hole for the positioning pin 141 to be inserted into the positioning seat. When the formation integration fixture 100 is connected to the cell restraint tray 200, the positioning pin 141 is aligned with the positioning hole on the positioning seat and inserted into the positioning hole, thereby positioning the formation integration fixture 100 in the horizontal direction, so that the formation processing mechanism 130 is precisely aligned with the cell in the cell restraint tray 200, so as to realize the formation processing of the cell.

[0055] Please refer to Figure 2 and Figure 7 The formation processing mechanism 130 includes a negative pressure adsorption component 131 and a charge / discharge component 132. Both the negative pressure adsorption component 131 and the charge / discharge component 132 are mounted on the base mechanism 110. The negative pressure adsorption component 131 is used to connect with the electrolyte injection port of the battery cell and apply negative pressure to the battery cell, thereby preventing airborne impurities from entering the battery cell through the injection port and preventing the gas generated by the electrolyte during the charging process from escaping into the air. The charge / discharge component 132 is used to charge and discharge the battery cell, thereby performing the formation processing on the battery cell.

[0056] For further details, please refer to Figure 2 and Figure 7 The negative pressure adsorption assembly 131 includes a negative pressure mounting plate 1311, negative pressure suction nozzles 1312, an integrated negative pressure cup 1313, and a negative pressure connector 1314. The negative pressure mounting plate 1311 is detachably mounted on the side of the substrate 111 facing the cell restraint tray 200. Multiple negative pressure suction nozzles 1312 are provided on the negative pressure mounting plate 1311, and each nozzle corresponds to a liquid injection port of a multiple cell within the cell restraint tray 200. The integrated negative pressure cup 1313 is located on the side of the substrate 111 away from the cell restraint tray 200, and communicates with the multiple negative pressure suction nozzles 1312 through mounting holes on the substrate 111. Figure 9 The negative pressure docking connector 1314 is disposed on one of the side plates 112 and communicates with the integrated negative pressure cup 1313. In this embodiment, the negative pressure docking connector 1314 adopts a floating docking seat with a pneumatic control valve, which facilitates the rapid connection of the integrated negative pressure cup 1313 to the negative pressure docking connector 1314 through a pipe.

[0057] For further details, please refer to Figure 2 and Figure 7The charging / discharging assembly 132 includes a probe mounting plate 1321, charging / discharging probes 1322, and quick-connect connectors 1323. The probe mounting plate 1321 is detachably mounted on the side of the substrate 111 facing the cell restraint tray 200, and is connected to the substrate 111. Multiple charging / discharging probes 1322 are disposed on the probe mounting plate 1321, each corresponding to a specific cell within the cell restraint tray 200, and are connected in series via power lines. Figure 9 The quick-connector 1323 is disposed on the side plate 112 and located on one side of the negative pressure docking connector 1314. The quick-connector 1323 and the charge / discharge probe 1322 are also connected via a power line. In this embodiment, the quick-connector adopts a floating docking seat with an aviation plug that matches the power line.

[0058] To further understand the charging and discharging status of the battery cell, please refer to... Figure 2 and Figure 7 Multiple temperature probes 133 are also provided on the probe mounting plate 1321, and a PCB board 134 is provided on the side of the substrate 111 away from the cell restraint tray 200. Figure 10 The PCB board 134 is connected to multiple temperature probes 133 and multiple charge / discharge probes 1322 via sampling lines. Combined with... Figure 8 To facilitate the installation of PCB board 134, PCB board 134 is connected to integrated negative pressure cup 1313. Simultaneously, in conjunction with... Figure 9 A sampling connector 135 is also provided on the side plate 112, and the PCB board 134 and the sampling connector 135 are connected by a sampling line.

[0059] It should be noted that, in order to improve the integration of the integrated fixture 100 in this embodiment, combined with Figure 9 The negative pressure butt joint 1314, quick-connect joint 1323 and sampling joint 135 are all set on the same side plate 112, which makes the overall structure of the integrated fixture 100 compact.

[0060] In summary, the implementation principle of the formation integrated fixture 100 and formation processing device in this embodiment is as follows: The formation integrated fixture 100 provided by this utility model integrates the connecting mechanism 120, the positioning mechanism 140, and the formation processing mechanism 130 onto the base mechanism 110. The positioning mechanism 140 aligns the formation processing mechanism 130 with the cell restraint tray 200, and the connecting mechanism 120 connects the base mechanism 110 to the cell restraint tray 200. Thus, the formation processing mechanism 130 performs formation processing on the cells in the cell restraint tray 200. By integrating the formation processing mechanism 130 onto the base mechanism 110, the formation integrated fixture 100 can perform formation processing on the cells when clamping the cell restraint tray 200, eliminating the need to transport the cell restraint tray 200 to the charge-discharge voltage bed for processing, reducing the size of the processing equipment, and improving processing efficiency. The above description is only a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model.

Claims

1. A formation integration fixture, characterized by, The application relates to a formation integrated fixture. The base mechanism comprises a base plate and a side plate detachably arranged on the circumferential edge of the base plate. The connecting mechanism is arranged on the side plate and is used for connecting the base mechanism with a battery cell restraining tray. The formation processing mechanism is arranged on the base mechanism and is used for performing formation processing on the battery cell in the battery cell restraining tray. The positioning mechanism is arranged on the side plate and is used for positioning the formation processing mechanism to align the formation processing mechanism with the battery cell restraining tray.

2. The formation integration fixture of claim 1, wherein, The connecting mechanism comprises a fixing pin, and the side plate is provided with a through hole for the fixing pin.

3. The formation integration fixture of claim 1, wherein, The positioning mechanism comprises a positioning pin arranged on the side plate and used for plugging with the battery cell restraining tray.

4. The formation integration fixture of claim 1, wherein, The formation processing mechanism comprises a negative pressure suction assembly and a charging and discharging assembly, and the negative pressure suction assembly and the charging and discharging assembly are arranged on the base mechanism.

5. The formation integration fixture of claim 4, wherein, The negative pressure suction assembly comprises a negative pressure mounting plate, a negative pressure suction nozzle, an integrated negative pressure cup and a negative pressure butt joint.

6. The formation integration fixture of claim 4, wherein, The negative pressure mounting plate is detachably arranged on the base plate.

7. The formation integration fixture of claim 6, wherein, The charging and discharging assembly comprises a probe mounting plate, a charging and discharging probe and a quick connector.

8. A formation processing apparatus characterized by comprising: The probe mounting plate is detachably arranged on the base plate.

9. The formation processing apparatus according to claim 8, wherein The charging and discharging probe is arranged on the probe mounting plate. The quick connector is arranged on the side plate and is in conduction with the charging and discharging probe.

10. The formation processing apparatus according to claim 9, wherein The probe mounting plate is further provided with a plurality of temperature probes. The base plate is provided with a PCB plate in conduction with the charging and discharging probe and the temperature probe. The side plate is provided with a sampling connector in conduction with the PCB plate. The application further relates to a battery cell restraining tray used for accommodating a battery cell. The connecting mechanism comprises a fixing pin, and the side plate is provided with a through hole for the fixing pin. The outer wall of the battery cell restraining tray is provided with a fixing seat provided with a plugging hole for the fixing pin. The positioning mechanism comprises a positioning pin arranged on the side plate and used for plugging with the battery cell restraining tray. The battery cell restraining tray is provided with a positioning seat used for plugging with the positioning pin.

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