Electroplating apparatus

Abstract

Embodiments of the present application disclose a formation device, which comprises: a formation clamp, the formation clamp comprising: clamping plates arranged in sequence along a first direction, and a first positioning member arranged on the clamping plates; and a probe assembly arranged on one side of the formation clamp in a second direction and movable relative to the formation clamp, the probe assembly comprising: a fixed plate, a conductive element arranged on a side of the fixed plate facing the formation clamp and configured to charge and discharge a battery monomer clamped in a clamping space, and a second positioning member connected with the fixed plate, the first positioning member and the second positioning member being positioned and matched to position the relative positions of the conductive element and the clamping plates in the first direction. According to the formation device provided by the present application, the conductive element and the battery monomer can be accurately positioned, and the stability and consistency of current transmission in the formation process can be effectively improved.

Description

Technical Field

[0001] This application relates to the field of battery technology, and in particular to a formation device. Background Technology

[0002] In existing technologies, during the formation process of battery cells, the cells need to be clamped by a fixture to achieve formation under high pressure. At the same time, the cells need to be continuously charged during formation. The charging of the cells is generally achieved by extruding probes and battery electrodes. However, since the effective contact area of ​​the probes and battery electrodes is very small, the probes can easily deviate from the battery electrode positions, resulting in poor contact between the probes and the battery, which in turn leads to a low yield of formed products. Utility Model Content

[0003] This application aims to address at least one of the technical problems existing in the prior art. To this end, this application proposes a formation apparatus that can achieve precise positioning of conductive elements and battery cells, enabling good contact between the conductive elements and battery electrodes. This effectively improves the stability and consistency of current transmission during the formation process, thereby increasing the product yield of the formation process.

[0004] An embodiment of this application provides a formation apparatus, comprising: a formation fixture, the formation fixture including: a clamping plate and a first positioning member, the number of clamping plates being multiple, the multiple clamping plates being arranged sequentially along a first direction, and a clamping space for clamping a battery cell being defined between two adjacent clamping plates, the first positioning member being disposed on the clamping plate; and a probe assembly, the probe assembly being disposed on one side of the formation fixture in a second direction and being movable relative to the formation fixture, the first direction and the second direction intersecting, the probe assembly including: a fixing plate, a conductive element and a second positioning member, the conductive element being arranged on the side of the fixing plate facing the formation fixture and configured for clamping a battery cell in the clamping space for charging and discharging, the second positioning member being connected to the fixing plate, wherein the first positioning member and the second positioning member are positioned and engaged to position the relative position of the conductive element and the clamping plate in the first direction.

[0005] In the above technical solution, by setting the first positioning component and the second positioning component, the relative position of the conductive element and the clamping plate in the first direction can be positioned, thereby achieving precise positioning of the conductive element and the battery cell, so that the conductive element can have good contact with the battery electrode, thereby effectively improving the stability and consistency of current transmission during the formation process, and thus improving the product yield of the formation process.

[0006] In some embodiments, the first positioning member has a first positioning surface, the second positioning member has a second positioning surface, and the first positioning surface and the second positioning surface are engaged in a first direction.

[0007] In the above technical solution, by setting the first positioning member to have a first positioning surface and the second positioning member to have a second positioning surface, and the first positioning surface and the second positioning surface to fit together in the first direction, the positioning complexity of the conductive element and the clamping member can be simplified, thereby improving the positioning convenience of the conductive element and the clamping member; at the same time, the contact area of ​​the first positioning part and the second positioning part can be increased, effectively reducing the stress between the probe assembly and the formation fixture, thereby reducing the probability of damage when the probe assembly and the formation fixture come into contact and collide.

[0008] In some embodiments, the first positioning member is formed as a plate extending along a first direction, one end of the first positioning member is connected to a clamping plate, and the other end face of the first positioning member is formed as a first positioning surface.

[0009] In the above technical solution, the first positioning member is formed as a plate extending along the first direction. One end of the first positioning member is connected to the clamping plate, and the other end face of the first positioning member is formed as the first positioning surface. This simplifies the structure of the first positioning member and thus simplifies the overall structure of the entire formation equipment. At the same time, it is also beneficial to calculate the distance between the positioning reference surface and the clamping plate, thereby simplifying the design difficulty of positioning and matching the first and second positioning members. In addition, since the length of the plate in the first direction can be set by the thickness of the battery cell and the position of the electrode post, when changing battery cells of different sizes, only the first positioning member of different lengths needs to be replaced to change the position of the positioning surface relative to the clamping plate, without modifying the main body of the clamping plate or other surrounding structures. This improves the versatility and changeover efficiency of the formation equipment.

[0010] In some embodiments, the formation fixture further includes: a base defining a formation cavity open on one side in a second direction, a plurality of clamping plates arranged in the formation cavity and dividing the formation cavity into a plurality of clamping spaces, a clearance groove formed on the base extending in a first direction and penetrating the base in a third direction, a first positioning member connected to the clamping plate on the side in the third direction, at least a portion of the first positioning member extending through the clearance groove to the outside of the base, the first direction, the second direction and the third direction intersecting each other.

[0011] In the above technical solution, by setting an avoidance groove, the first positioning member can extend out of the outer side of the base, so that the positioning and mating can be achieved on the outer side of the base. This can improve the visibility and operability of the positioning and mating, and thus reduce the probability of misalignment.

[0012] In some embodiments, the position of the first positioning member relative to the clamping plate is adjustable in the first direction.

[0013] In the above technical solution, by setting the first positioning member in the first direction and making its position relative to the clamping plate adjustable, the formation equipment of this application can be adapted to different sizes of battery cells by simply adjusting the distance between the first positioning member and the clamping plate, which can further improve the versatility and changeover efficiency of the formation equipment.

[0014] In some embodiments, the formation fixture further includes: a first guide member, one end of which is connected to a clamping plate, and the other end of which extends in a first direction toward an end opposite to the clamping plate; a movable member, which is movably fitted onto the first guide member in the first direction, and a first positioning member is fixed onto the movable member.

[0015] In the above technical solution, by setting the first guide and the movable part, the accuracy and consistency of the position adjustment of the first positioning part can be improved, so that the first positioning part will not shift or deflect in the second or third direction during the position adjustment process, thereby further improving the alignment accuracy of the conductive component and the pole.

[0016] In some embodiments, the formation fixture further includes a second guide member, one end of which is connected to the side of the clamping plate opposite to the first guide member, and the other end of which extends toward the side opposite to the first guide member in a first direction. In a second direction, the first guide member and the second guide member are arranged at intervals, and the movable member is movably arranged on the first guide member and the second guide member between two adjacent clamping plates in the first direction.

[0017] In the above technical solution, by setting a second guide member, the moving part can be limited from the second direction, and its movement and sway in the second direction can be constrained, thereby further improving the accuracy of the adjustment direction of the first positioning member.

[0018] In some embodiments, both the first guide and the second guide are formed as racks, and the movable member is formed as a gear, with the rack meshing with the gear.

[0019] In the above technical solution, by setting both the first and second guide members to be racks and the movable part to be a gear, the overall structure of the fixture can be simplified. At the same time, the first positioning member can be fixed in a preset position without the need for other parts, and will not shift due to collision with the second positioning member, thereby further improving the positioning accuracy. In addition, since the number of teeth of the gear and the tooth pitch of the rack are fixed, the operator can determine the displacement size according to the number of rotations of the gear. Therefore, by setting both the first and second guide members to be racks and the movable part to be a gear, the steps for adjusting the spacing of the first positioning member can be simplified, reducing human error.

[0020] In some embodiments, there are two second guide members, which are respectively arranged on both sides of the first guide member in the second direction, and there are two movable members, which are respectively arranged between the first guide member and the two second guide members.

[0021] In the above technical solution, by setting two moving parts and two second guide parts, it is possible to ensure that if one moving part is damaged, the other can still continue to work, thus further extending the service life of the chemical forming fixture.

[0022] In some embodiments, the first positioning member includes a connecting segment and a positioning segment. The number of connecting segments is two, the two connecting segments extend in a third direction, one end of the two connecting segments is connected to two movable members respectively, and the positioning segment is connected between the other ends of the two connecting segments. The first positioning member is positioned and engaged with the second positioning member through the positioning segment.

[0023] In the above technical solution, by setting the first positioning component to include a connecting section and a positioning section, the structure of the first positioning component can be simplified, thereby simplifying the structure of the entire formation fixture and reducing the production cost of the entire formation equipment; at the same time, it can also facilitate the positioning and cooperation between the second positioning component and the first positioning component.

[0024] In some embodiments, a protrusion is formed on the side surface of the second positioning member facing the first positioning member, and the second positioning member is positioned and engaged with the first positioning member through the protrusion.

[0025] In the above technical solution, a protrusion is formed on the side surface of the second positioning member facing the first positioning member. The second positioning member is positioned and engaged with the first positioning member through the protrusion, which can create a certain clearance space between the second positioning member and the other surfaces of the first positioning member. In this way, the probability of the second positioning member interfering with other components can be effectively reduced, thereby further improving the positioning accuracy.

[0026] In some embodiments, each clamping plate is connected to a first positioning member on both sides of the third direction, and the first direction, the second direction and the third direction intersect each other.

[0027] In the above technical solution, by setting each clamping plate to be connected to a first positioning element on both sides in the third direction, a double-sided constraint positioning can be formed between the probe assembly and the formation fixture. Compared with single-sided positioning, the double-sided constraint can effectively eliminate the deflection error caused by uneven force or guide deviation on one side, thereby further improving the positioning accuracy of the conductive element and the electrode.

[0028] In some embodiments, among a plurality of first positioning members arranged on the same side of a plurality of clamping plates in the third direction, two adjacent first positioning members are staggered in the second direction, and / or, the edge of the first positioning member away from the clamping plate in the third direction is the outer edge, and the outer edges of two adjacent first positioning members are staggered in the third direction.

[0029] In the above technical solution, by arranging multiple first positioning members on the same side of multiple clamping plates in the third direction, two adjacent first positioning members are staggered in the second direction, and / or, the edge of the first positioning member away from the clamping plate in the third direction is the outer edge, and the outer edges of two adjacent first positioning members are staggered in the third direction, when multiple probe assemblies move simultaneously in the first direction to position and cooperate with their respective corresponding clamping plates, the staggered spacing between adjacent positioning members in the second direction or the third direction can ensure smooth operation of multi-station synchronous positioning operations and improve the overall reliability of the operation.

[0030] In some embodiments, the formation fixture includes: a base, in which a formation cavity is formed; a guide rod extending along a first direction and disposed within the formation cavity, the two ends of the guide rod being connected to two sidewalls of the formation cavity in the first direction, and a plurality of clamping plates being movably sleeved on the guide rod along the first direction.

[0031] In the above technical solution, by setting a base and a guide rod, it is possible to effectively prevent the clamping plate from deviating during the movement in the first direction, thereby improving the straightness of the clamping plate during the movement and reducing the problem of uneven force on the battery cells caused by trajectory deviation.

[0032] In some embodiments, the formation apparatus further includes a drive mechanism connected to the probe assembly for driving the probe assembly to be movable along a first direction and a second direction.

[0033] In the above technical solution, by setting a driving mechanism, the probe assembly can share the same power source for position adjustment in two directions. This simplifies the overall structure of the equipment and reduces the manufacturing cost and control complexity of the entire equipment.

[0034] In some embodiments, the conductive element is movable relative to the fixed plate along a second direction; and / or, the probe assembly further includes: a negative pressure nozzle disposed on the fixed plate, the negative pressure nozzle being movable relative to the fixed plate along a second direction.

[0035] In the above technical solution, by setting the conductive element to be movable relative to the fixed plate along the second direction, and / or the negative pressure nozzle to be movable relative to the fixed plate along the second direction, the negative pressure nozzle and the conductive element can effectively avoid each other during the lateral movement stage of the formation process, reducing the probability of interference with the battery cells. After final positioning, they can be precisely pressed onto the injection port or electrode at an appropriate height to achieve reliable power supply and venting. In addition, it can also compensate for the height and size differences between different battery cells, thereby improving the versatility of the formation equipment and thus enhancing the market competitiveness of the formation equipment.

[0036] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0037] Figure 1 This is a schematic diagram of a chemical formation fixture according to an embodiment of this application; Figure 2 This is a schematic diagram of a probe assembly according to an embodiment of this application; Figure 3 This is a schematic diagram showing the connection between the clamping plate and the first positioning member according to one embodiment of this application; Figure 4 This is a schematic diagram of a chemical formation apparatus according to another embodiment of this application; Figure 5 This is a schematic diagram of a formation apparatus according to another embodiment of this application from another angle; Figure 6 This is a partial schematic diagram of a chemical formation fixture according to another embodiment of this application; Figure 7 This is a schematic diagram of a probe assembly according to another embodiment of this application; Figure 8 This is a cross-sectional view of a formation device according to another embodiment of this application.

[0038] Figure label: 100. Chemical formation equipment; 10. Formation fixture; 11. Base; 111. Formation cavity; 112. Clearance groove; 12. Clamping plate; 13. Guide rod; 14. First positioning component; 141. Connecting section; 142. Positioning section; 15. First guide component; 16. Second guide component; 17. Movable component; 20. Probe assembly; 21. Fixing plate; 22. Conductive element; 23. Negative pressure nozzle; 24. Second positioning element; 241. Protrusion; 200. Battery cell; 201. Terminal post; X, first direction; Z, second direction; Y, third direction. Detailed Implementation

[0039] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0040] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0041] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0042] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0043] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between associated objects, indicating that three relationships can exist. For example, "and / or" can represent: existing alone, existing simultaneously, and existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following associated objects have an "or" relationship.

[0044] In the description of the embodiments of this application, the term "multiple" refers to two or more (including two).

[0045] In the description of the embodiments of this application, the technical terms "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application 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. Therefore, they should not be construed as limitations on the embodiments of this application.

[0046] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0047] Currently, judging from market trends, the application of power batteries is becoming increasingly widespread. Power batteries are not only used in energy storage systems such as hydropower, thermal power, wind power, and solar power plants, but also extensively used in electric vehicles such as electric bicycles, electric motorcycles, and electric cars, as well as in aerospace and other fields. With the continuous expansion of power battery applications, market demand is also constantly increasing. This increased demand has led to a rapid growth in battery warehousing and logistics transportation.

[0048] In existing technologies, during the formation process of battery cells, the cells need to be clamped by a fixture to achieve formation under high pressure. At the same time, the cells need to be continuously charged during formation. The charging of the cells is generally achieved by extruding probes and battery electrodes. However, since the effective contact area of ​​the probes and battery electrodes is very small, the probes can easily deviate from the battery electrode positions, resulting in poor contact between the probes and the battery, which in turn leads to a low yield of formed products.

[0049] Based on the above considerations, in order to solve the problem of poor contact between the probe and the battery, resulting in a low yield of formed products, embodiments of this application provide a formation apparatus, which includes a formation fixture and a probe assembly. The formation fixture includes a clamping plate and a first positioning member. Multiple clamping plates are arranged sequentially along a first direction, and a clamping space for clamping a single battery cell is defined between adjacent clamping plates. The first positioning member is disposed on the clamping plate. The probe assembly is disposed on one side of the formation fixture in a second direction and is movable relative to the formation fixture. The first and second directions intersect. The probe assembly includes a fixing plate, a conductive element, and a second positioning member. The conductive element is arranged on the side of the fixing plate facing the formation fixture and is configured to clamp a single battery cell within the clamping space for charging and discharging. The second positioning member is connected to the fixing plate. The first and second positioning members are positioned in conjunction to position the conductive element relative to the clamping plate in the first direction. This allows the conductive element to be positioned directly opposite the electrode post in the second direction when the first and second positioning components are engaged. This effectively improves the positioning accuracy of the conductive element and the battery cell, enabling the conductive element to have good contact with the battery electrode. Consequently, it effectively improves the stability and consistency of current transmission during the formation process, thereby increasing the product yield of the formation process.

[0050] The following is for reference. Figures 1-8 Describes a formation apparatus 100 according to an embodiment of the first aspect of this application. Figure 1 This is a schematic diagram of a chemical formation fixture 10 according to an embodiment of this application; Figure 2 This is a schematic diagram of a probe assembly 20 according to an embodiment of this application; Figure 3 This is a schematic diagram showing the connection between the clamping plate 12 and the first positioning member 14 according to an embodiment of this application; Figure 4 This is a schematic diagram of a chemical formation apparatus 100 according to another embodiment of this application; Figure 5 This is a schematic diagram of the formation apparatus 100 according to another embodiment of this application from another angle; Figure 6 This is a partial schematic diagram of a chemical formation fixture 10 according to another embodiment of this application; Figure 7 This is a schematic diagram of a probe assembly 20 according to another embodiment of this application; Figure 8 This is a cross-sectional view of a formation apparatus 100 according to another embodiment of this application.

[0051] An embodiment of this application provides a chemical formation device 100, referring to... Figures 1-5 The formation apparatus 100 includes a formation fixture 10 and a probe assembly 20.

[0052] The formation fixture 10 includes a clamping plate 12 and a first positioning member 14. There are multiple clamping plates 12, which are arranged sequentially along the first direction X. A clamping space for clamping the battery cell 200 is defined between two adjacent clamping plates 12. The first positioning member 14 is disposed on the clamping plate 12.

[0053] Specifically, the clamping plate 12 is mainly used to clamp the battery cell 200, fixing the battery cell 200 and preventing it from moving. It should be noted that the first direction X is the thickness direction of the battery cell 200, that is, the clamping plate 12 contacts the two large surfaces of the battery cell 200 to achieve clamping of the battery cell 200.

[0054] For example, the number of clamping plates 12 can be two, three or more.

[0055] The probe assembly 20 is located on one side of the formation fixture 10 in the second direction Z and is movable relative to the formation fixture 10. The first direction X and the second direction Z intersect. The probe assembly 20 includes: a fixing plate 21, a conductive element 22 and a second positioning member 24. The conductive element 22 is arranged on the side of the fixing plate 21 facing the formation fixture 10 and is configured to hold the battery cell 200 in the clamping space for charging and discharging. The second positioning member 24 is connected to the fixing plate 21. The first positioning member 14 and the second positioning member 24 are positioned and cooperated to position the relative position of the conductive element 22 and the clamping plate 12 in the first direction X.

[0056] Specifically, the fixing plate 21 mainly provides installation space for the conductive element 22; the conductive element 22 is mainly used to connect with the positive terminal 201 and negative terminal 201 of the battery cell 200 to realize the charging and discharging of the battery cell 200; the second positioning member 24 mainly cooperates with the first positioning member 14 to realize the positioning of the relative position of the conductive element 22 and the clamping plate 12 in the first direction X.

[0057] It should be noted that the first direction X is the thickness direction of the battery cell 200. When the clamping plate 12 is used to clamp the battery cell 200, the clamping plate 12 is in contact with one large surface of the battery cell 200. Therefore, the distance between the battery cell 200 terminal post 201 and the large surface of the battery cell 200 is equal to the distance between the clamping plate 12 and the terminal post 201 on the side facing the battery cell 200. The conductive element 22 is mainly used to connect with the positive terminal post 201 and the negative terminal post 201 of the battery cell 200. That is, in the second direction Z, the conductive element 22 needs to be arranged directly opposite the terminal post 201. Therefore, the distance between the conductive element 22 and the clamping plate 12 in the first direction X and the distance between the terminal post 201 and the side surface of the clamping plate 12 facing the battery cell 200 need to be the same.

[0058] Therefore, the first positioning member 14 and the second positioning member 24 are positioned and cooperate to position the relative position of the conductive element 22 and the clamping plate 12 in the first direction X, which can limit the relative position of the conductive element 22 and the electrode post 201 in the second direction Z. This allows the conductive element 22 to be arranged directly opposite the electrode post 201 in the second direction Z when the first positioning member 14 and the second positioning member 24 are in cooperation. This can effectively improve the positioning accuracy of the conductive element 22 and the battery cell 200, so that the conductive element 22 can have good contact with the battery electrode. This can effectively improve the stability and consistency of current transmission during the formation process, thereby improving the product yield of the formation process.

[0059] "The probe assembly 20 is located on one side of the formation fixture 10 in the second direction Z and is movable relative to the formation fixture 10" means that all components of the probe assembly 20 are movable relative to the formation fixture 10. The direction of this movement is not predetermined; it can be movable along the first direction X, or along the second direction Z or the third direction Y.

[0060] The phrase "the first positioning element 14 and the second positioning element 24 are positioned and engaged" is intended to indicate that in this embodiment, the relative position between the conductive element 22 and the electrode is limited by mechanical positioning, rather than by soft control methods such as visual recognition, sensor detection, or manual visual alignment. Compared with soft control, mechanical positioning has higher reliability and consistency. Once the positioning elements are engaged, the relative position between the conductive element 22 and the electrode post 201 is uniquely determined and is no longer affected by the external environment. Therefore, there is no need for calibration every time the machine is turned on, and there will be no accuracy drift due to the aging of electrical components during long-term use. This can further improve the high repeatability and long-term stability of the alignment between the conductive element 22 and the electrode post 201 during the formation process.

[0061] It should be noted that the first positioning part and the second positioning part can be in the form of a protrusion 241 or a positioning surface for positioning and mating, and there are no restrictions here.

[0062] In the above technical solution, by setting the first positioning member 14 and the second positioning member 24, the relative position of the conductive element 22 and the clamping plate 12 in the first direction X can be positioned, thereby achieving precise positioning of the conductive element 22 and the battery cell 200, so that the conductive element 22 can have good contact with the battery electrode, thereby effectively improving the stability and consistency of current transmission during the formation process, and thus improving the product yield of the formation process.

[0063] In some embodiments, the first positioning member 14 has a first positioning surface and the second positioning member 24 has a second positioning surface, and the first positioning surface and the second positioning surface are engaged in the first direction X.

[0064] For example, the first positioning member 14 is formed as a plate extending along the first direction X, and the second positioning member 24 is formed as a plate extending along the second direction Z. When the first positioning member 14 and the second positioning member 24 are positioned and engaged, one side surface of the second positioning member 24 in the first direction X is attached to one side surface of the first positioning member 14 in the first direction X, and the two surfaces that are attached to each other are the second positioning surface and the first positioning surface, respectively.

[0065] In the above technical solution, by setting the first positioning member 14 to have a first positioning surface and the second positioning member 24 to have a second positioning surface, and the first positioning surface and the second positioning surface to fit together in the first direction X, the positioning complexity of the conductive element 22 and the clamping member can be simplified, thereby improving the positioning convenience of the conductive element 22 and the clamping member; at the same time, the contact area of ​​the first positioning part and the second positioning part can be increased, effectively reducing the stress between the probe assembly 20 and the formation fixture 10, thereby reducing the probability of damage when the probe assembly 20 and the formation fixture 10 come into contact and collide.

[0066] In some embodiments, refer to Figure 1 The first positioning member 14 is formed as a plate extending along the first direction X. One end of the first positioning member 14 is connected to the clamping plate 12, and the other end face of the first positioning member 14 is formed as a first positioning surface.

[0067] The plate body has a relatively simple structure. Therefore, the first positioning member 14 is formed as a plate body, which simplifies the structure of the first positioning member 14 and thus simplifies the overall structure of the entire formation equipment 100. At the same time, the setting of the plate body and the use of its end face as the first positioning surface are beneficial to the calculation of the distance between the positioning reference surface and the clamping plate 12, which simplifies the design difficulty of the positioning and matching of the first positioning member 14 and the second positioning member 24. In addition, since the length of the plate body in the first direction X can be set by the thickness of the battery cell 200 and the position of the pole post 201, when replacing battery cells 200 of different sizes, only the first positioning member 14 of different lengths needs to be replaced to change the position of the positioning surface relative to the clamping plate 12, without changing the main body of the clamping plate 12 or other surrounding structures, thereby improving the versatility and changeover efficiency of the formation equipment 100.

[0068] In the above technical solution, the first positioning member 14 is formed as a plate extending along the first direction X. One end of the first positioning member 14 is connected to the clamping plate 12, and the other end face of the first positioning member 14 is formed as the first positioning surface. This simplifies the structure of the first positioning member 14, thereby simplifying the overall structure of the entire formation equipment 100. At the same time, it is also beneficial to calculate the distance between the positioning reference surface and the clamping plate 12, thereby simplifying the design difficulty of positioning and coordinating the first positioning member 14 and the second positioning member 24. In addition, since the length of the plate in the first direction X can be set by the thickness of the battery cell 200 and the position of the pole post 201, when replacing battery cells 200 of different sizes, only the first positioning member 14 of different lengths needs to be replaced to change the position of the positioning surface relative to the clamping plate 12, without modifying the main body of the clamping plate 12 or other surrounding structures, thereby improving the versatility and changeover efficiency of the formation equipment 100.

[0069] In some embodiments, refer to Figure 1 The formation fixture 10 further includes: a base 11, which defines a formation cavity 111 open on one side in the second direction Z; a plurality of clamping plates 12 arranged in the formation cavity 111 and dividing the formation cavity 111 into a plurality of clamping spaces; a clearance groove 112 extending along the first direction X and penetrating the base 11 in the third direction Y; a first positioning member 14 connected to the clamping plate 12 on the third direction Y; at least a portion of the first positioning member 14 extends through the clearance groove 112 to the outside of the base 11; and the first direction X, the second direction Z and the third direction Y intersect each other.

[0070] Specifically, the base 11 and the clamping plate 12 cooperate to define a clamping space for clamping the battery cell 200. The base 11 mainly serves to support and accommodate the battery cell 200 and the clamping plate 12.

[0071] The phrase “base 11 defines a formation cavity 111 that is open on one side in the second direction Z” is intended to indicate that the battery cell 200 can be placed into the clamping space through the open side in the second direction Z, and one side of the terminal post 201 of the battery cell 200 is placed facing the open side.

[0072] The phrase "at least a portion of the first positioning member 14 extends through the clearance groove 112 to the outside of the base 11" is intended to indicate that the first positioning member 14 may extend partially or completely beyond the outside of the base 11. For example, as shown in the figure, the first positioning member 14 is formed as a plate extending along a first direction X. The clamping fixture 10 also includes a connecting plate connected to one side of the clamping plate 12 in a third direction Y. The first positioning member 14 is connected to one side of the connecting plate in the first direction X, and a portion of the first positioning member 14 engages within the clearance groove 112, while another portion extends beyond the outside of the base 11.

[0073] It should be noted that the clamping plate 12 is movable along the first direction X, so the clearance groove 112 not only plays a clearance role, but also plays a certain guiding role.

[0074] In the above technical solution, by setting the clearance groove 112, the first positioning member 14 can extend out of the outer side of the base 11, so that the positioning and mating can be realized on the outer side of the base 11. In this way, the visibility and operability of the positioning and mating can be improved, thereby reducing the probability of misalignment.

[0075] In some embodiments, refer to Figure 4 In the first direction X, the position of the first positioning member 14 relative to the clamping plate 12 is adjustable.

[0076] It is understandable that the size of the first positioning member 14 relative to the clamping plate 12 in the first direction X can be adjusted according to the size of different battery cells 200. In this way, when the formation equipment 100 of this application is adapted to battery cells 200 of different sizes, only the distance between the first positioning member 14 and the clamping plate 12 needs to be adjusted, which can further improve the versatility and changeover efficiency of the formation equipment 100.

[0077] In the above technical solution, by setting the first positioning member 14 in the first direction X and making its position relative to the clamping plate 12 adjustable, the formation equipment 100 of this application can only adjust the distance between the first positioning member 14 and the clamping plate 12 when adapting to battery cells 200 of different sizes. This can further improve the versatility and changeover efficiency of the formation equipment 100.

[0078] In some embodiments, refer to Figures 4-6 The chemical forming fixture 10 also includes a first guide member 15 and a movable member 17. One end of the first guide member 15 is connected to the clamping plate 12, and the other end extends along the first direction X toward the end opposite to the clamping plate 12. The movable member 17 is movably fitted on the first guide member 15 along the first direction X, and the first positioning member 14 is fixed on the movable member 17.

[0079] It is understood that in this embodiment, the position adjustment of the first positioning member 14 relative to the clamping plate 12 can be achieved by driving the movable member 17 to move relative to the first guide member 15. The first guide member 15 limits the movement trajectory of the movable member 17, ensuring that the movable member 17 always moves along the first direction X. This improves the accuracy and consistency of the position adjustment of the first positioning member 14, preventing it from shifting or deflecting in the second direction Z or the third direction Y during position adjustment. This further enhances the alignment accuracy between the conductive component and the electrode post 201.

[0080] In the above technical solution, by setting the first guide 15 and the movable part 17, the accuracy and consistency of the position adjustment of the first positioning part 14 can be improved, so that the first positioning part 14 will not shift or deflect in the second direction Z or the third direction Y during the position adjustment process, thereby further improving the alignment accuracy of the conductive component and the pole post 201.

[0081] In some embodiments, refer to Figures 4-6 The chemical forming fixture 10 further includes a second guide member 16, one end of which is connected to the side of the clamping plate 12 away from the first guide member 15, and the other end extends along the first direction X toward the side away from the first guide member 15. In the second direction Z, the first guide member 15 and the second guide member 16 are arranged at intervals. The movable member 17 is movably arranged along the first direction X on the first guide member 15 and the second guide member 16 between two adjacent clamping plates 12.

[0082] For example, refer to Figure 5 The plurality of clamping plates 12 include a first clamping plate 12 and a second clamping plate 12 arranged adjacent to each other. The first clamping plate 12 includes a first guide 15 and a second guide 16, and the second clamping plate 12 includes a first guide 15 and a second guide 16. The first guide 15 of the first clamping plate 12 extends toward the second clamping plate 12, and the second guide 16 of the second clamping plate 12 extends toward the first clamping plate 12. In the second direction Z, the first guide 15 and the second guide 16 are arranged at intervals and together form a guide groove. The movable member 17 is movably fitted in the guide groove.

[0083] In the above technical solution, by setting the second guide member 16, the movable member 17 can be limited from the second direction Z, and its movement and sway in the second direction Z can be constrained, thereby further improving the accuracy of the adjustment direction of the first positioning member 14.

[0084] In some embodiments, the first guide 15 and the second guide 16 are both formed as racks, and the movable member 17 is formed as a gear, with the rack meshing with the gear.

[0085] Among them, the structure of gears and racks is relatively simple. Thus, the first guide 15 and the second guide 16 are both formed as racks, and the movable part 17 is formed as a gear, which can be simplified into the overall structure of the clamp 10. At the same time, the gears and racks have a certain self-locking characteristic in the meshing state. This allows the first positioning part 14 to be fixed in the preset position without the need for other parts, and it will not be displaced due to collision with the second positioning part 24, thereby further improving the positioning accuracy.

[0086] In the above technical solution, by setting both the first guide member 15 and the second guide member 16 to be racks and the movable member 17 to be a gear, the overall structure of the clamp 10 can be simplified. At the same time, the first positioning member 14 can be fixed in a preset position without the need for other parts, and will not be displaced due to collision with the second positioning member 24, thereby further improving the positioning accuracy. In addition, since the number of teeth of the gear and the tooth pitch of the rack are fixed, the operator can determine the displacement size according to the number of rotations of the gear. Therefore, by setting both the first guide member 15 and the second guide member 16 to be racks and the movable member 17 to be a gear, the steps of adjusting the spacing of the first positioning member 14 can be simplified, reducing human operation error.

[0087] In some embodiments, refer to Figures 4-6 There are two second guide members 16, which are respectively arranged on both sides of the first guide member 15 in the second direction Z. There are two movable members 17, which are respectively arranged between the first guide member 15 and the two second guide members 16.

[0088] For example, refer to Figure 5 The plurality of clamping plates 12 include a first clamping plate 12 and a second clamping plate 12 arranged adjacent to each other. The first clamping plate 12 includes a first guide member 15 and a second guide member 16. The second clamping plate 12 includes a first guide member 15 and two second guide members 16. The first guide member 15 of the first clamping plate 12 extends toward the second clamping plate 12, and the two second guide members 16 of the second clamping plate 12 extend toward the first clamping plate 12. The two second guide members 16 are respectively arranged on both sides of the first guide member 15 in the second direction Z. Two movable members 17 are respectively movably engaged between the first guide member 15 and the second guide member 16 in the first direction X.

[0089] In the above technical solution, by setting two movable parts 17 and two second guide parts 16, it is possible that if one movable part 17 is damaged, the other can still continue to participate in the work, thus further extending the service life of the formation fixture 10.

[0090] In some embodiments, refer to Figure 6 The first positioning element 14 includes a connecting segment 141 and a positioning segment 142. There are two connecting segments 141, which extend along a third direction Y. One end of each connecting segment 141 is connected to two movable parts 17. The positioning segment 142 is connected between the other ends of the two connecting segments 141. The first positioning element 14 is positioned and engaged with the second positioning element 24 through the positioning segment 142.

[0091] It is understandable that the first positioning element 14 is formed into a U-shaped structure and connects the two movable elements 17. This allows the two movable elements 17 to move synchronously and with the same displacement, which can effectively prevent movement jamming and improve the stability and accuracy of position adjustment. At the same time, the U-shaped structure is relatively simple, which simplifies the structure of the first positioning element 14 and the entire formation fixture 10, thereby reducing the production cost of the entire formation equipment 100.

[0092] Furthermore, since the two connecting segments 141 extend along the third direction Y, and the positioning segment 142 connects the other ends of the two connecting segments 141, the first positioning member 14 is positioned and engaged with the second positioning member 24 through the positioning segment 142. This makes the distance between the first positioning member 14 and the clamping plate 12 in the third direction Y greater than the distance between the first guide member 15 and the second guide member 16 and the clamping plate 12. That is, in the third direction Y, the positioning surface of the first positioning member 14 is arranged outside the first guide member 15 and the second guide member 16, which is beneficial to the positioning and engagement of the second positioning member 24 and the first positioning member 14.

[0093] In the above technical solution, by setting the first positioning member 14 to include a connecting section 141 and a positioning section 142, the structure of the first positioning member 14 can be simplified, thereby simplifying the structure of the entire formation fixture 10 and reducing the production cost of the entire formation equipment 100; at the same time, it can also facilitate the positioning and cooperation between the second positioning member 24 and the first positioning member 14.

[0094] In some embodiments, refer to Figures 5-7 The second positioning member 24 has a protrusion formed on the side surface facing the first positioning member 14, and the second positioning member 24 is positioned and engaged with the first positioning member 14 through the protrusion.

[0095] It should be noted that the structural dimensions of the bump can be adjusted according to the actual situation, which also allows the formation apparatus of this embodiment to adapt to battery cells 200 of different sizes by adjusting the size of the bump.

[0096] In the above technical solution, a protrusion is formed on the side surface of the second positioning member 24 facing the first positioning member 14. The second positioning member 24 is positioned and engaged with the first positioning member 14 through the protrusion, which can form a certain clearance space between the second positioning member 24 and the other surfaces of the first positioning member 14. In this way, the probability of the second positioning member 24 interfering with other components can be effectively reduced, thereby further improving the positioning accuracy.

[0097] In some embodiments, refer to 3 and Figure 8Each clamping plate 12 is connected to a first positioning member 14 on both sides in the third direction Y, and the first direction X, the second direction Z and the third direction Y intersect each other.

[0098] It should be noted that each clamping plate 12 is connected to a first positioning member 14 on both sides in the third direction Y. The positions of the two first positioning members 14 can be symmetrical or asymmetrical, and there is no restriction here.

[0099] In the above technical solution, by setting each clamping plate 12 to have a first positioning member 14 connected to both sides in the third direction Y, a double-sided constraint positioning can be formed between the probe assembly 20 and the formation fixture 10. Compared with single-sided positioning, the double-sided constraint can effectively eliminate the deflection error caused by uneven force or guide deviation on one side, thereby further improving the positioning accuracy of the conductive element 22 and the pole post 201.

[0100] In some embodiments, refer to Figure 1 In a plurality of first positioning members 14 arranged on the same side of a plurality of clamping plates 12 in the third direction Y, two adjacent first positioning members 14 are staggered in the second direction Z, and / or, the edge of the first positioning member 14 away from the clamping plate 12 in the third direction Y is the outer edge, and the outer edges of two adjacent first positioning members 14 are staggered in the third direction Y.

[0101] It is understood that, in some specific embodiments, among the multiple first positioning members 14 arranged on the same side of the multiple clamping plates 12 in the third direction Y, two adjacent first positioning members 14 are staggered in the second direction Z.

[0102] In other specific embodiments, the edge of the first positioning member 14 away from the clamping plate 12 in the third direction Y is the outer edge, and the outer edges of two adjacent first positioning members 14 are staggered in the third direction Y. For example, Figure 1 As shown, the formation fixture 10 further includes: a base 11 defining a formation cavity 111 open on one side in the second direction Z; a plurality of clamping plates 12 arranged within the formation cavity 111, dividing the formation cavity 111 into a plurality of clamping spaces; a clearance groove 112 extending along the first direction X and penetrating the base 11 in the third direction Y; a first positioning member 14 formed as a plate, one end of the first positioning member 14 connected to one side of the clamping plate 12 in the third direction Y, and the other end extending along the first direction X; at least a portion of the first positioning member 14 extends through the clearance groove 112 to the outside of the base 11. In the first direction X, from one end of the base 11 to the other, the distance by which the plurality of first positioning members 14 extend beyond the outside of the base 11 gradually increases or gradually decreases.

[0103] It should be noted that the second positioning member 24 is always positioned and engaged with the first positioning member 14. That is, when the width of the first positioning member 14 is small, the position of the second positioning member 24 relative to the fixed plate 21 will move from the edge toward the inside, so that the first positioning member 14 can always engage with the second positioning part. When the position of the first positioning member 14 is close to the lower part relative to other positioning members, the position of the probe assembly 20 can be collectively downward, or the length of the second positioning member 24 can be relatively increased, so that the first positioning member 14 can always engage with the second positioning part.

[0104] In the above technical solution, by arranging multiple first positioning members 14 on the same side of multiple clamping plates 12 in the third direction Y, two adjacent first positioning members 14 are staggered in the second direction Z, and / or, the edge of the first positioning member 14 away from the clamping plate 12 in the third direction Y is the outer edge, and the outer edges of two adjacent first positioning members 14 are staggered in the third direction Y, so that when multiple probe assemblies 20 move simultaneously along the first direction X to position and cooperate with their respective corresponding clamping plates 12, the staggered spacing between adjacent positioning members in the second direction Z or the third direction Y can ensure the smooth operation of multi-station synchronous positioning operations and improve the overall reliability of the operation.

[0105] In some embodiments, refer to Figure 1 The chemical formation fixture 10 includes a base 11 and a guide rod 13. A chemical formation cavity 111 is formed in the base 11. The guide rod 13 extends along a first direction X and is arranged in the chemical formation cavity 111. The two ends of the guide rod 13 are respectively connected to two side walls of the chemical formation cavity 111 in the first direction X. A plurality of clamping plates 12 are movably sleeved on the guide rod 13 along the first direction X.

[0106] Specifically, the base 11 is a component used to support the battery cell 200 and provide installation space for the clamping plate 12; the guide rod 13 is mainly used to connect the clamping plate 12 and the base 11, and to limit the movement trajectory of the clamping plate 12. The guide rod 13 effectively prevents the clamping plate 12 from deviating during its movement in the first direction X, thereby improving the straightness of the clamping plate 12 during movement and reducing the problem of uneven force on the battery cell 200 caused by trajectory deviation.

[0107] Optionally, the guide rod 13 is a transmission rod, the guide rod 13 is rotatably connected to the base 11, and the guide rod 13 is threadedly connected to the clamping plate 12.

[0108] Optionally, the number of guide rods 13 can be multiple, for example... Figure 3 As shown, there are four guide rods 13, which are connected to the four corners of the clamping plate 12 respectively. This reduces the space occupied by the guide rods 13.

[0109] In the above technical solution, by setting the base 11 and the guide rod 13, it is possible to effectively prevent the clamping plate 12 from deviating during the movement in the first direction X, thereby improving the straightness of the clamping plate 12 during the movement and reducing the problem of uneven force on the battery cell 200 caused by trajectory deviation.

[0110] In some embodiments, the formation device 100 further includes a driving mechanism connected to the probe assembly 20, for driving the probe assembly 20 to be movable along a first direction X and a second direction Z.

[0111] The drive mechanism primarily provides driving force for the movement of the probe assembly 20. Specifically, when the formation equipment 100 needs to perform formation processing on the battery cell 200, the formation fixture 10 clamps the battery cell 200 and places it in the formation cabinet. At this time, the drive mechanism drives the probe assembly 20 to press down along the second direction Z and move along the first direction X until the first positioning part and the second positioning part are positioned and engaged.

[0112] In the above technical solution, by setting a driving mechanism, the probe assembly 20 can share the same power source for position adjustment in two directions. This simplifies the overall structure of the device 100, thereby reducing the manufacturing cost and control complexity of the entire device.

[0113] In some embodiments, the conductive element 22 is movable relative to the fixed plate 21 along the second direction Z.

[0114] It is understood that the conductive element 22 in this embodiment is not fixed to the fixed plate 21, but is configured to reciprocate relative to the fixed plate 21 along the second direction Z. This arrangement allows the conductive element 22 to flexibly adjust its spatial position in the second direction Z. For example, when it needs to be connected to the battery cell 200, it can move toward the terminal 201 and contact it. When it needs to be disconnected, it can move away from the terminal 201 in the opposite direction, thereby realizing the connection and disconnection of the battery cell 200.

[0115] It should be noted that when the formation equipment 100 needs to perform formation processing on the battery cell 200, the battery cell 200 is first clamped by the formation fixture 10, and then placed into the formation cabinet. At this time, the drive mechanism drives the probe assembly 20 to press down along the second direction Z and move along the first direction X. After the first positioning part and the second positioning part are positioned and engaged, the probe assembly 20 moves to the predetermined position, and the conductive element 22 moves to the position directly opposite the electrode post 201. Therefore, it can be understood that before the conductive element moves to the preset position, the conductive element 22 needs to maintain a certain distance from the electrode post 201. This ensures that the conductive element 22 does not touch the electrode post 201 during lateral movement, reducing damage caused by interference. Therefore, in this embodiment, the conductive element 22 is movable relative to the fixed plate 21 along the second direction Z. This allows the probe assembly 20 to keep the conductive element 22 in a clearance position above the pole post 201 during the alignment stage of moving along the first direction X. After positioning is completed, it is pressed down along the second direction Z to make it contact the pole post 201, thereby effectively preventing the risk of scratching and collision during lateral movement.

[0116] In some embodiments, refer to Figure 8 The probe assembly 20 also includes a negative pressure nozzle 23, which is disposed on the fixed plate 21 and is movable relative to the fixed plate 21 along the second direction Z.

[0117] Specifically, the negative pressure nozzle 23 is mainly used to connect with the liquid injection hole of the battery cell 200 so that a controllable negative pressure environment is formed and maintained inside the battery cell 200, and the gas generated by the formation reaction is removed in time.

[0118] The negative pressure nozzle 23 is movable relative to the fixed plate 21 along the second direction Z, so that the position of the negative pressure nozzle 23 in the second direction Z is adjustable. In this way, the negative pressure nozzle 23 can effectively avoid interference with the battery cell 200 during the lateral movement stage during the formation process, and can be precisely pressed into the liquid injection port at a suitable height after final positioning, thereby improving the reliability of the venting seal.

[0119] Furthermore, the negative pressure nozzle 23 and the conductive element 22 are movable relative to the fixed plate 21 along the second direction Z, which can also compensate for the height and size differences between different battery cells 200, thereby improving the versatility of the formation equipment 100 and thus enhancing the market competitiveness of the formation equipment 100.

[0120] In the above technical solution, by setting the conductive element 22 to be movable relative to the fixed plate 21 along the second direction Z, and / or the negative pressure nozzle 23 to be movable relative to the fixed plate 21 along the second direction Z, the negative pressure nozzle 23 and the conductive element 22 can effectively avoid each other during the lateral movement stage of the formation process, reducing the probability of interference with the battery cell 200. After final positioning, they can be precisely pressed onto the liquid injection port or electrode post 201 at an appropriate height to achieve reliable power supply and venting. In addition, it can also compensate for the height and size differences between different battery cells 200, thereby improving the versatility of the formation equipment 100 and thus enhancing the market competitiveness of the formation equipment 100.

[0121] The following will refer to Figures 1-8 Describes a formation apparatus 100 according to two specific embodiments of this application.

[0122] Example 1, Reference Figures 1-3 The formation apparatus 100 includes a formation fixture 10 and a probe assembly 20.

[0123] Specifically, the chemical forming fixture 10 includes: a base 11, a clamping plate 12, a guide rod 13, and a first positioning element 14.

[0124] The base 11 defines a formation cavity 111 that is open on one side in the second direction Z, and a clearance groove 112 is formed on the base 11 that extends along the first direction X and penetrates the base 11 in the third direction Y. A guide rod 13 extends along the first direction X and is arranged in the formation cavity 111. The two ends of the guide rod 13 are respectively connected to the two side walls of the formation cavity 111 in the first direction X. A plurality of clamping plates 12 are movably sleeved on the guide rod 13 along the first direction X and divide the formation cavity 111 into a plurality of clamping spaces for clamping the battery cells 200. A first positioning member 14 is formed as a plate extending along the first direction X. One end of the first positioning member 14 is connected to the clamping plate 12 and extends at least partially through the clearance groove 112 to the outside of the base 11. The other end face of the first positioning member 14 is formed as a first positioning surface.

[0125] Furthermore, each clamping plate 12 is connected to a first positioning member 14 on both sides in the third direction Y, and the two first positioning members 14 are arranged symmetrically. Among the multiple first positioning members 14 arranged on the same side of the multiple clamping plates 12 in the third direction Y, adjacent first positioning members 14 are staggered in the second direction Z, and / or, the edge of the first positioning member 14 away from the clamping plate 12 in the third direction Y is the outer edge, and the outer edges of adjacent first positioning members 14 are staggered in the third direction Y. Wherein, the first direction X is the thickness direction of the battery cell 200, the second direction Z is the height direction of the battery cell 200, and the third direction Y is the width direction of the battery cell 200.

[0126] The probe assembly 20 is located on one side of the formation fixture 10 in the second direction Z and is movable relative to the formation fixture 10. The probe assembly 20 includes: a fixing plate 21, a conductive element 22, a negative pressure nozzle 23, and a second positioning member 24. The conductive element 22 and the negative pressure nozzle 23 are both arranged on the side of the fixing plate 21 facing the formation fixture 10. The conductive element 22 and the negative pressure nozzle 23 are movable relative to the fixing plate 21 in the second direction Z. There are two conductive elements 22. The negative pressure nozzle 23 is arranged between the two conductive elements 22. The two conductive elements 22 are configured to hold the battery cell 200 in the clamping space for charging and discharging. The second positioning member 24 is connected to the fixing plate 21. The first positioning member 14 and the second positioning member 24 are positioned and cooperated to position the relative position of the conductive element 22 and the clamping plate 12 in the first direction X.

[0127] In the above technical solution, by setting the first positioning member 14 and the second positioning member 24, the relative position of the conductive element 22 and the clamping plate 12 in the first direction X can be positioned, thereby achieving precise positioning of the conductive element 22 and the battery cell 200, so that the conductive element 22 can have good contact with the battery electrode, thereby effectively improving the stability and consistency of current transmission during the formation process, and thus improving the product yield of the formation process.

[0128] Example 2, Reference Figure 4 The structure of this embodiment is roughly the same as that of embodiment one, with the same reference numerals used for the same components. The only difference is that the first positioning member 14 in embodiment one is formed as a plate extending along the first direction X, while the first positioning member 14 in this embodiment two is formed as a U-shaped member and its position relative to the clamping plate 12 is adjustable.

[0129] Specifically, the formation fixture 10 also includes: a first guide 15, a second guide 16, and a movable part 17.

[0130] The first guide member 15 has one end connected to the clamping plate 12, and the other end extends along the first direction X toward the end opposite to the clamping plate 12; one end of the second guide member 16 is connected to the side of the clamping plate 12 opposite to the first guide member 15, and the other end extends along the first direction X toward the side opposite to the first guide member 15; there are two second guide members 16, which are respectively arranged on both sides of the first guide member 15 in the second direction Z; there are two movable members 17, which are respectively arranged between the first guide member 15 and the two second guide members 16, and are movable along the first direction X.

[0131] The first positioning member 14 includes a connecting segment 141 and a positioning segment 142. There are two connecting segments 141, each extending in a third direction (Y). One end of each connecting segment is connected to one of two movable members 17. The positioning segment 142 connects the other ends of the two connecting segments 141. The first positioning member 14 engages with the second positioning member 24 via the positioning segment 142. Further, a protrusion is formed on the surface of the second positioning member 24 facing the first positioning member 14, and the second positioning member 24 engages with the first positioning member 14 via the protrusion.

[0132] Furthermore, both the first guide member 15 and the second guide member 16 are formed as racks, and the movable member 17 is formed as a gear, with the rack meshing with the gear.

[0133] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and they should all be covered within the scope of the claims and specification of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A chemical formation device, characterized in that, include: A formation fixture (10) includes: a clamping plate (12) and a first positioning member (14). The number of clamping plates (12) is multiple, and the multiple clamping plates (12) are arranged sequentially along a first direction (X). A clamping space for clamping a battery cell (200) is defined between two adjacent clamping plates (12). The first positioning member (14) is disposed on the clamping plate (12). A probe assembly (20) is disposed on one side of the formation fixture (10) in the second direction (Z) and is movable relative to the formation fixture (10). The first direction (X) and the second direction (Z) intersect. The probe assembly (20) includes a fixing plate (21), a conductive element (22), and a second positioning member (24). The conductive element (22) is arranged on the side of the fixing plate (21) facing the formation fixture (10) and is configured to hold the battery cell (200) in the clamping space for charging and discharging. The second positioning member (24) is connected to the fixing plate (21). The first positioning member (14) and the second positioning member (24) are positioned together to position the conductive element (22) and the clamping plate (12) relative to each other in the first direction (X).

2. The chemical formation equipment according to claim 1, characterized in that, The first positioning member (14) has a first positioning surface, and the second positioning member (24) has a second positioning surface. In the first direction (X), the first positioning surface and the second positioning surface are in contact.

3. The chemical formation equipment according to claim 2, characterized in that, The first positioning member (14) is formed as a plate extending along the first direction (X), one end of the first positioning member (14) is connected to the clamping plate (12), and the other end face of the first positioning member (14) is formed as the first positioning surface.

4. The chemical formation equipment according to claim 3, characterized in that, The formation fixture (10) further includes: a base (11) defining a formation cavity (111) open on one side in the second direction (Z), wherein a plurality of clamping plates (12) are arranged within the formation cavity (111) and divide the formation cavity (111) into a plurality of clamping spaces. A clearance groove (112) is formed on the base (11) extending along the first direction (X) and penetrating the base (11) along the third direction (Y). The first positioning member (14) is connected to the clamping plate (12) on the third direction (Y). At least a portion of the first positioning member (14) extends through the clearance groove (112) to the outside of the base (11). The first direction (X), the second direction (Z), and the third direction (Y) intersect each other.

5. The chemical formation equipment according to claim 1, characterized in that, In the first direction (X), the position of the first positioning member (14) relative to the clamping plate (12) is adjustable.

6. The chemical formation equipment according to claim 5, characterized in that, The formation fixture (10) also includes: A first guide member (15) has one end connected to the clamping plate (12) and the other end extending along the first direction (X) toward the end opposite to the clamping plate (12). The movable part (17) is movably fitted onto the first guide (15) along the first direction (X), and the first positioning part (14) is fixed onto the movable part (17).

7. The chemical formation equipment according to claim 6, characterized in that, The formation fixture (10) further includes: a second guide (16), one end of which is connected to the side of the clamping plate (12) away from the first guide (15), and the other end extends along the first direction (X) toward the side away from the first guide (15). In the second direction (Z), the first guide (15) and the second guide (16) are arranged at intervals. The movable member (17) is movably arranged along the first direction (X) on the first guide (15) and the second guide (16) between two adjacent clamping plates (12).

8. The chemical formation equipment according to claim 7, characterized in that, The first guide (15) and the second guide (16) are both formed as racks, and the movable member (17) is formed as a gear, and the rack meshes with the gear.

9. The chemical formation equipment according to claim 7, characterized in that, There are two second guide members (16), which are respectively arranged on both sides of the first guide member (15) in the second direction (Z). The number of the movable parts (17) is two, and the two movable parts (17) are respectively arranged between the first guide (15) and the two second guides (16).

10. The chemical formation apparatus according to claim 9, characterized in that, The first positioning member (14) includes a connecting segment (141) and a positioning segment (142). There are two connecting segments (141), which extend along a third direction (Y). One end of each connecting segment (141) is connected to one of the two movable parts (17). The positioning segment (142) is connected between the other ends of the two connecting segments (141). The first positioning member (14) is positioned and engaged with the second positioning member (24) through the positioning segment (142).

11. The chemical formation apparatus according to any one of claims 1-10, characterized in that, The second positioning member (24) has a protrusion formed on the side surface facing the first positioning member (14), and the second positioning member (24) is positioned and engaged with the first positioning member (14) through the protrusion.

12. The chemical formation apparatus according to any one of claims 1-10, characterized in that, Each of the clamping plates (12) is connected to the first positioning member (14) on both sides in the third direction (Y), and the first direction (X), the second direction (Z) and the third direction (Y) intersect each other.

13. The chemical formation apparatus according to any one of claims 1-10, characterized in that, In a plurality of first positioning members (14) arranged on the same side of the plurality of clamping plates (12) in a third direction (Y), two adjacent first positioning members (14) are staggered in the second direction (Z), and / or, the edge of the first positioning member (14) away from the clamping plate (12) in the third direction (Y) is the outer edge, and the outer edges of two adjacent first positioning members (14) are staggered in the third direction (Y).

14. The chemical formation apparatus according to any one of claims 1-10, characterized in that, The formation fixture (10) includes: A base (11) having a formation cavity (111) formed therein; A guide rod (13) extends along the first direction (X) and is arranged inside the formation cavity (111). The two ends of the guide rod (13) are respectively connected to the two side walls of the formation cavity (111) in the first direction (X). A plurality of clamping plates (12) are movably sleeved on the guide rod (13) along the first direction (X).

15. The chemical formation apparatus according to any one of claims 1-10, characterized in that, Also includes: A driving mechanism, connected to the probe assembly (20), is used to drive the probe assembly (20) to be movable along the first direction (X) and the second direction (Z).

16. The chemical formation apparatus according to claim 15, characterized in that, The conductive element (22) is movable relative to the fixed plate (21) along the second direction (Z); and / or, The probe assembly (20) further includes a negative pressure nozzle (23), which is disposed on the fixing plate (21) and is movable relative to the fixing plate (21) along the second direction (Z).

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