CN219315130U - Strip-shaped conductive piece for battery piece electroplating and battery piece electroplating clamp - Google Patents

Abstract

The utility model provides a strip-shaped conductive piece for battery piece electroplating and a battery piece electroplating clamp, wherein the strip-shaped conductive piece comprises a base body and strip-shaped conductive teeth; the conductive teeth are connected with the base body, and conductive parts are arranged at tooth top positions of the conductive teeth along the length direction of the conductive teeth, wherein the tooth top positions are end parts of the conductive teeth far away from the base body. The strip-shaped conductive piece provided by the embodiment of the utility model can reduce the ablation damage risk brought by the traditional conductive probe, and is beneficial to improving the quality of the electroplated grid line.

Description

Strip-shaped conductive piece for battery piece electroplating and battery piece electroplating clamp

Technical Field

The utility model relates to the field of solar cell electroplating, in particular to a strip-shaped conductive piece for cell electroplating and a cell electroplating clamp.

Background

In order to reduce the production and manufacturing cost of solar cells, the preparation of the grid lines on the surfaces of the cells by adopting an electroplating process is currently a development trend of great concern in the industry.

Currently, in the grid line electroplating process of a battery plate, a plurality of conductive probes are usually installed on a cube-shaped substrate structure, the conductive probes are connected with a cathode of an electroplating power supply, and after the conductive probes are contacted with the surface of the battery plate, metal cations in an electroplating solution can be separated out to form a designed grid line.

However, in order to increase the plating efficiency to increase the productivity, the current density in the plating process is increasing. When the current density is larger, the plurality of conductive probes which are arranged in an isolated way cannot bear larger current load, and damage such as ablation is easy to generate, so that quality defects of the electroplated grid line are caused.

Disclosure of Invention

The utility model provides a strip-shaped conductive piece for battery piece electroplating and a battery piece electroplating clamp, which are used for solving the problems that when an existing conductive probe is used for electroplating a grid line with high current density, the existing conductive probe cannot bear high current load, is easy to damage such as ablation and the like, and causes quality defects of the electroplated grid line.

In order to solve the above problems, the present utility model is achieved as follows:

in a first aspect, the present utility model provides a strip-shaped conductive member for battery plate electroplating, the strip-shaped conductive member comprising a base body and strip-shaped conductive teeth;

the conductive teeth are connected with the matrix,

and a conductive part is arranged at the tooth top part of the conductive tooth along the length direction of the conductive tooth, wherein the tooth top part is the end part of the conductive tooth far away from the base body.

Optionally, the number of the conductive teeth is at least two, at least two of the conductive teeth are connected to one of the substrates, and at least two of the conductive teeth are parallel to each other.

Optionally, the number of the conductive elements is at least two, and each strip-shaped conductive element comprises one base body and one conductive tooth;

at least two bases of the strip-shaped conductive pieces are connected, and conductive teeth of the strip-shaped conductive pieces are parallel to each other.

Optionally, the conductive portion is a continuous whole along the length of the conductive tooth.

Optionally, the conductive teeth are integrally formed with the base.

Optionally, each conductive tooth and the substrate are of a split structure;

the base body is provided with a through hole, and the conductive teeth penetrate through the through hole.

Optionally, the conductive tooth includes a tooth body main body and a limit part arranged at one end of the tooth body main body;

when the conductive teeth penetrate through the through holes, the limiting parts prevent the tooth body main body from falling out after penetrating through the through holes.

Optionally, the strip-shaped conductive element further comprises a pre-tightening assembly;

the pre-tightening assembly is connected with the base body and used for providing pre-tightening force for the conductive teeth, and the pre-tightening force direction is intersected with the axial direction of the through hole.

Optionally, the pretensioning assembly includes a set screw and a first resilient member;

the base body is provided with a screw hole, and the axis of the screw hole is perpendicular to the axis of the through hole;

the first elastic piece is embedded in the screw hole, the set screw is in threaded connection with the screw hole, one end of the first elastic piece is abutted to the conductive tooth, and the other end of the first elastic piece is abutted to the set screw.

Optionally, the conductive teeth include a plurality of conductive sheets, and a plurality of conductive sheets are stacked to form a strip-shaped conductive tooth;

the strip-shaped conductive piece further comprises a pressing cover and a second elastic piece, wherein the pressing cover is connected with the base body to form a cavity for accommodating the second elastic piece, and the second elastic piece is arranged in the cavity;

one end of the second elastic piece is abutted with the inner side of the gland, and the other end of the second elastic piece is abutted with the tail end of the conducting strip, wherein the tail end is one end opposite to the tooth top part.

Optionally, the number of the second elastic members is one, and the second elastic members cover the end of each conductive sheet at the same time; or alternatively, the first and second heat exchangers may be,

the number of the second elastic pieces is the same as that of the conductive sheets, and the tail end of each conductive sheet is independently abutted with one second elastic piece.

Optionally, the conductive part is detachably connected to a top part of the conductive tooth.

Optionally, along the length direction of the conductive tooth, a caulking groove is formed at the tooth top part of the conductive tooth, and the conductive part is embedded in the caulking groove.

Optionally, the conductive part is a flexible conductive adhesive tape; or, the conductive part is a rigid structure integrally connected with the conductive teeth.

Optionally, a metal layer is provided on a surface of the conductive portion at least opposite to a tooth top portion of the conductive tooth.

Optionally, when the conductive part is a flexible conductive adhesive tape, the conductive part further comprises a rigid support body, and the rigid support body and the flexible conductive adhesive tape are adhered and fixed into a whole; or when the conductive part is of a rigid structure integrally connected with the conductive teeth, at least the surface opposite to the tooth top part of the conductive teeth is adhered with a flexible conductive adhesive tape.

Optionally, the cross-section of the conductive part is U-shaped, rounded-corner-transition U-shaped or rounded-corner-transition V-shaped along the direction perpendicular to the length direction of the conductive teeth.

In a second aspect, the utility model further provides a battery piece electroplating fixture, which comprises a clamping device, a needle-shaped conductive piece and the strip-shaped conductive piece according to the first aspect of the utility model, wherein the needle-shaped conductive piece comprises a plurality of conductive probes which are arranged at intervals;

the strip-shaped conductive piece and the needle-shaped conductive piece are connected with the clamping device at the same time, and the strip-shaped conductive piece and the needle-shaped conductive piece are oppositely arranged and used for clamping a battery piece and transmitting current; or alternatively, the first and second heat exchangers may be,

the two strip-shaped conductive pieces are connected with the clamping device at the same time, and the two strip-shaped conductive pieces are oppositely arranged and used for clamping the battery piece and transmitting current.

In an embodiment of the utility model, the strip-shaped conductive member comprises a base body and strip-shaped conductive teeth. The strip-shaped conductive teeth are connected with the base body, and conductive parts are arranged at tooth top positions of the conductive teeth along the length direction of the conductive teeth, wherein the tooth top positions are the end parts of the conductive teeth far away from the base body. Therefore, when the conductive parts are distributed along the length direction of the strip-shaped conductive teeth, a larger conductive contact area can be provided, so that the contact resistance is reduced, excessive heat is avoided, and the larger contact area is also beneficial to heat dissipation. Therefore, the strip-shaped conductive piece provided by the embodiment of the utility model can reduce the ablation damage risk brought by the traditional conductive probe, and is beneficial to improving the quality of the electroplated grid line.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments of the present utility model will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view showing a first conductive strip according to an embodiment of the present utility model;

FIG. 2 is a schematic view showing the structure of FIG. 1 along the X direction according to an embodiment of the present utility model;

FIG. 3 is a schematic diagram showing a second conductive strip according to an embodiment of the present utility model;

FIG. 4 is a schematic view showing the structure of FIG. 2 along the X direction according to an embodiment of the present utility model;

FIG. 5 is a schematic cross-sectional view of the embodiment of the utility model in the direction A-A of FIG. 4;

FIG. 6 is a schematic view showing a structure of a conductive tooth according to an embodiment of the present utility model;

FIG. 7 is a schematic view showing a structure of a detachable connection between a conductive tooth and a conductive portion according to an embodiment of the present utility model;

FIG. 8 is an enlarged partial schematic view of the position II in FIG. 7 according to an embodiment of the present utility model;

FIG. 9 illustrates an enlarged partial schematic view of the position I of FIG. 6 in accordance with an embodiment of the utility model;

fig. 10 is a schematic view showing a structure of an electroplating jig according to an embodiment of the utility model.

Reference numerals illustrate:

the device comprises the following components of a strip-shaped conductive part (10), a clamping device (20), a needle-shaped conductive part (30), a base body (101), conductive teeth (102), a conductive sheet (102 a), a conductive part (103), a pre-tightening component (104), a gland (105), a second elastic part (106), a tooth body main body (1021), a limiting part (1022), a set screw (1041), a first elastic part (1042) and a caulking groove (10211).

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be appreciated that reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present utility model. Thus, the appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

Referring to fig. 1, an embodiment of the present utility model provides a bar-shaped conductive member 10 for battery plate plating, the bar-shaped conductive member 10 including a base 101 and bar-shaped conductive teeth 102;

the conductive teeth 102 are connected to the base 101, and a conductive portion 103 is provided at a tip portion of the conductive teeth 102 along a longitudinal direction of the conductive teeth 102, wherein the tip portion is an end portion of the conductive teeth 102 away from the base 101.

Specifically, in the grid line plating process of the battery piece, when a plurality of isolated probes are used as the conductive cathode for plating, the contact area between the plurality of conductive probes which are arranged in an isolated manner and the surface of the battery piece is limited, and the large current load is difficult to bear.

As illustrated in fig. 1, the strip-shaped conductive member 10 according to the embodiment of the present utility model may replace a conventional slim rod-shaped probe. The strip-shaped conductive member 10 according to the embodiment of the present utility model includes a base 101 and strip-shaped conductive teeth 102. The base body 101 is a main body structure of the strip-shaped conductive member 10 for mounting and connecting with the plating equipment, and may be a cubic block structure made of metal by machining, and is designed with a connection structure such as a bolt hole for detachable connection with the plating equipment.

Referring to fig. 1 and 2, a conductive portion 103 is provided at a tip portion of the conductive tooth 102, which is an end portion of the conductive tooth 102 away from the base 101, along a longitudinal direction X of the conductive tooth 102. It is easy to understand that the tooth top portion, i.e., the portion of the conductive tooth 102 for contacting the battery plate, and the conductive portions 103 are distributed along the length direction X of the conductive tooth 102, which can provide a larger conductive contact area than the conventional probe. When the conductive portions 103 are distributed along the longitudinal direction X of the conductive teeth 102, the conductive portions 103 may have a continuous structure without gaps, and the edges of the conductive portions 103 may be straight lines when viewed in the Y direction as shown in the drawing. The conductive portion 103 may have a gap or wavy configuration, and in this case, the edge of the conductive portion 103 may have a wavy line shape as viewed in the Y direction shown in the drawing.

In an embodiment of the utility model, the strip-shaped conductive member comprises a base body and strip-shaped conductive teeth. The conductive teeth are connected with the base body, and conductive parts are arranged at tooth top positions of the conductive teeth along the length direction of the conductive teeth, wherein the tooth top positions are the end parts of the conductive teeth far away from the base body. Therefore, when the conductive parts are distributed along the length direction of the strip-shaped conductive teeth, a larger conductive contact area can be provided, so that the contact resistance is reduced, excessive heat is avoided, and the larger contact area is also beneficial to heat dissipation. Therefore, the strip-shaped conductive piece provided by the embodiment of the utility model can reduce the ablation damage risk brought by the traditional conductive probe, and is beneficial to improving the quality of the electroplated grid line.

Optionally, the number of the conductive teeth 102 is at least two, at least two of the conductive teeth 102 are connected to one of the substrates 101, and at least two of the conductive teeth 102 are parallel to each other.

Specifically, the number of the gate lines of the battery sheet is often plural, and each gate line corresponds to the conductive portion 1032 of one of the conductive teeth 102 when the gate lines are plated. That is, the number of the conductive teeth 102 is the same as the number of the main grids to be plated in the plating process, for example, 9 conductive teeth 102 are also used when 9 cells are plated. In one embodiment, at least two conductive teeth 102 may be connected to one base 101 in the strip-shaped conductive member 10, and each conductive tooth 102 may be protruded from the same surface of the base 101 so as to be in contact with the surface of the battery plate, so as to plate the main grids parallel to each other, while keeping each conductive tooth 102 parallel to each other.

Optionally, the number of the strip-shaped conductive elements 10 is at least two, and each strip-shaped conductive element 10 includes one base 101 and one conductive tooth 102;

the bases 101 of at least two of the strip-shaped conductive members 10 are connected, and the conductive teeth 102 of the strip-shaped conductive members 10 are parallel to each other.

Specifically, in one embodiment, each of the strip-shaped conductive elements 10 may include a base 101 and a conductive tooth 102, where after the base 101 of two or more strip-shaped conductive elements 10 are linearly arranged and connected together, the conductive teeth 102 corresponding to the strip-shaped conductive elements 10 are kept parallel to each other, so that the electroplating of multiple grid lines may be achieved. Of course, in practical application, either one of the above two strip-shaped conductive members 10 may be selected for electroplating of the gate line.

It should be noted that, in the embodiment of the present utility model, two adjacently arranged substrates 101 may be fastened together and fixedly connected together, or a sliding groove may be machined on a side surface of one substrate 101, a sliding rail having a shape identical to that of the sliding groove may be machined on a side surface of the other substrate 101, the sliding rail is embedded in the sliding groove, and directions of the sliding groove and the sliding rail may be machined along a Z direction illustrated in fig. 3, so that the two adjacently arranged substrates 101 may slide relatively along the Z direction. When the base 101 slides relatively, the strip-shaped conductive element 10 connected with the base can be driven to move along the Z direction.

In addition, corresponding stop limit protrusions can be machined on the sliding grooves and the sliding rails to position the up-and-down sliding of the two adjacent matrixes 101, so that excessive sliding is prevented. In addition, besides the stop limit protrusions, after two or more than two base bodies 101 are connected in parallel, a fixing frame can be installed outside the base bodies, each base body 101 can slide up and down relative to the fixing frame, a fastening screw with a spring is installed on the fixing frame, and the base bodies 101 are clamped by using the spring and the fastening screw to avoid free sliding.

Moreover, it is understood that, whether the at least two substrates 101 are fixed together or slidably connected, the substrates 101 may be made of elastic materials such as hard rubber, so that when the conductive teeth 102 at the lower end of the substrates 101 are in compression joint with the battery piece, deformation of the hard rubber can avoid the conductive teeth 102 from crushing the battery piece, and elasticity of the hard rubber can keep the conductive teeth 102 in close contact with the battery piece to be electrically connected reliably.

Alternatively, referring to fig. 1, the conductive portion 103 is a continuous whole along the length direction of the conductive tooth 102.

Specifically, in one embodiment, as shown in fig. 1, the conductive portion 103 is continuous and uninterrupted at the tip portion along the longitudinal direction X of the conductive tooth 102, and the overall uniformity of the conductive portion 103 is better than that of a wavy undulating structure or a structure having a gap.

Alternatively, referring to fig. 1, the conductive teeth 102 are integrally formed with the base 101.

Specifically, in one embodiment, as shown in fig. 1, the conductive tooth 102 and the base 101 may be formed by one-step processing of a metal material, and the conductive portion 103 may be formed at the tooth top portion of the conductive tooth 102. For example, the mold may be cast and machined into the shape and configuration shown. The integrated strip-shaped conductive piece can be directly used on electroplating equipment without assembling different parts, and is simple and convenient and easy to use.

Alternatively, referring to fig. 3 to 5, each of the conductive teeth 102 and the base 101 are of a split structure; the base 101 is provided with a through hole, and the conductive teeth 102 are arranged in the through hole in a penetrating manner.

Specifically, in one embodiment, since one conductive tooth 102 corresponds to one main gate, different main gates are formed by electroplating at different positions of the seed layer on the surface of the battery. In order to adapt to the structural difference of the seed layer on the surface of the battery at different positions, the main grid with excellent quality is electroplated. The conductive teeth 102 and the base 101 may also be designed as a split type connection structure. As shown in fig. 3 to 5, through holes may be formed in the base 101 along the Z direction, the number of through holes being the same as the number of conductive teeth 102, and one conductive tooth 102 is inserted into each through hole. Therefore, when the conductive part 103 at the tooth top part of the conductive tooth 102 contacts with the surface of the battery piece, each conductive tooth 102 can slightly move along with the fluctuation of the seed layer at different positions, and the suspension of the conductive part 103 of part of the conductive teeth 102 can be avoided, so that the reliability of cathode conductive connection can be ensured, and the improvement of electroplating quality is facilitated.

Alternatively, referring to fig. 6, the conductive tooth 102 includes a tooth body 1021 and a limiting portion 1022 provided at one end of the tooth body 1021;

when the conductive teeth 102 are inserted into the through holes, the limiting parts 1022 prevent the tooth body 1021 from coming out through the through holes.

Specifically, in one embodiment, in order to avoid the conductive tooth 102 from falling out naturally in the through hole, as shown in fig. 6, a limiting portion 1022 is disposed at one end of the tooth body 1021, when the conductive tooth 102 is inserted into the through hole, the tooth body 1021 passes through the through hole, the conductive portion 103 extends out from below the through hole, and the limiting portion 1022 is located above the through hole, so that the tooth body 1021 is prevented from falling out continuously in the Z direction.

Optionally, referring to fig. 4 and 5, the strip-shaped conductive member 10 further includes a pre-tightening assembly 104;

the pre-tightening assembly 104 is connected with the base body 101, and the pre-tightening assembly 104 is used for providing pre-tightening force for the conductive teeth 102, and the pre-tightening force direction is intersected with the axial direction of the through hole.

Specifically, in one embodiment, when the conductive teeth 102 are inserted into the through holes so as to be slidable up and down, a pretensioner member 104 may be connected to the base 101 so that the conductive portions 103 at the tooth tip portions of the conductive teeth 102 are in close contact with the surface of the battery piece, and the pretensioner member 104 may apply a pretensioning force to the conductive teeth 102 from the side, the direction in which the pretensioning force acts intersecting the Z direction shown in the drawing, for example, the X direction, as shown in fig. 4 and 5. The side pretension can clamp the conductive tooth 102 in the through hole, preventing it from moving up and down freely in the Z direction. Illustratively, the pretensioning assembly 104 may be pretensioned by mechanical fastening means of screw tightening, or a magnetic member may be used as the pretensioning assembly 104 to pretension the conductive teeth 102 by magnetic repulsive force or attractive force.

Optionally, referring to fig. 5, the pretension assembly 104 includes a set screw 1041 and a first elastic member 1042;

the base body 101 is provided with a screw hole, and the axis of the screw hole is perpendicular to the axis of the through hole;

the first elastic member 1042 is embedded in the screw hole, and the set screw 1041 is screwed to the screw hole, wherein one end of the first elastic member 1042 abuts against the conductive tooth 102, and the other end of the first elastic member 1042 abuts against the set screw 1041.

Specifically, in one embodiment, in order to reduce manual operations while simultaneously moving the conductive teeth 102 in the Z direction, as shown in fig. 5, a screw hole may be formed in a side surface of the base 101, and an axis of the screw hole may be perpendicular to an axis of the through hole, for example, the axis of the screw hole may be along the X direction. The cylindrical first elastic member 1042 is fitted into the screw hole, and the set screw 1041 is screwed into the screw hole. At this time, one end of the first elastic member 1042 abuts against the conductive tooth 102, and the other end abuts against the set screw 1041. The first elastic member 1042 is in a compressed state, and the elastic force generated by the first elastic member acts on the conductive tooth 102 to tightly fix the conductive tooth 102 in the through hole. Meanwhile, when the conductive tooth 102 moves in the Z direction, only the resistance between one end of the first elastic member 1042 and the conductive tooth 102 is overcome. Obviously, after the first elastic member 1042 is slightly retracted, the conductive teeth 102 can be easily moved. It is understood that the first elastic member 1042 may be a spring, rubber, or silicone. Therefore, the set screw 1041 and the first elastic member 1042 can not only realize the automatic clamping and fixing of the conductive tooth 102 in the Z direction, but also facilitate the up-and-down movement thereof.

Alternatively, referring to fig. 3 to 5, the conductive teeth 102 include a plurality of conductive sheets 102a, and the plurality of conductive sheets 102a are stacked to form a strip-shaped conductive teeth 102;

the conductive element 10 further comprises a pressing cover 105 and a second elastic element 106, wherein the pressing cover 105 is connected with the base 101 to form a cavity for accommodating the second elastic element 106, and the second elastic element 106 is arranged in the cavity;

one end of the second elastic member 106 abuts against the inside of the gland 105, and the other end of the second elastic member 106 abuts against the tip of the conductive piece 102a, wherein the tip is the end opposite to the tooth tip portion.

Specifically, in one embodiment, considering that each gate line has a relief structure in the seed layer along the length direction thereof during electroplating, the conductive teeth 102 include a plurality of conductive sheets 102a, and the plurality of conductive sheets 102a are stacked to form a strip-shaped conductive tooth 102, as shown in the designs of fig. 3 to 5. The end portion of each conductive sheet 102a is provided with a conductive portion 103, and the plurality of conductive portions 103 form a whole having a larger contact area along the direction in which the plurality of conductive sheets 102a are stacked. In the conductive teeth 102, each conductive sheet 102a can independently move along the Z direction, so that the concave-convex fluctuation of the seed layer along the main grid direction can be adapted, and the electroplating quality of different parts of one grid line can be improved. In addition, in order to ensure that the lower portion of each conductive sheet 102a is in sufficient contact with the battery sheet, a pressing cover 105 is also attached to the base 101. The pressing cover 105 is fastened to the base 101 to form a cavity accommodating the second elastic member 106. The second elastic member 106 is disposed in the cavity and abuts against the pressing cover 105 and the end of the conductive sheet 102a, when the conductive sheet 102a is pressed after the conductive sheet 102a contacts with the battery, the second elastic member 106 can be further compressed, and the elastic force generated by the second elastic member 106 acts on the conductive sheet 102a to enable the conductive sheet to be in close contact with the battery. Similar to the first elastic member 1042, the second elastic member 106 can be a spring, rubber, or silicone, etc.

Alternatively, the number of the second elastic members 106 is one, and the second elastic members 106 cover the end of each of the conductive sheets 102a at the same time; or alternatively, the first and second heat exchangers may be,

the number of the second elastic members 106 is the same as the number of the conductive sheets 102a, and the end of each conductive sheet 102a is independently abutted against one of the second elastic members 106.

Specifically, for the application of the second elastic member 106, it may be designed such that a larger whole is placed in the cavity, and at this time, the second elastic member 106 is smaller in number and easier to assemble. In addition, the same number of second elastic members 106 as the conductive sheets 102a may be used, and one second elastic member 106 may be disposed at each end of each conductive sheet 102a, where the elastic force acting on each conductive sheet 102a is independent and not affected, so as to be better adapted to the seed layer structure.

Alternatively, referring to fig. 7 and 8, the conductive part 103 is detachably connected to the tip part of the conductive tooth 102.

Specifically, in one embodiment, as shown in fig. 7 and 8, the conductive portion 103 is detachably connected to the tooth top portion of the conductive tooth 102 as a worn portion that is often in contact with the battery piece, so that the maintenance convenience of such a conductive member can be improved, and the conductive portion 103 can be easily replaced, thereby facilitating the reduction of the use cost.

Alternatively, referring to fig. 8, along the length direction of the conductive tooth 102, a caulking groove 10211 is formed at the tooth top portion of the conductive tooth 102, and the conductive portion 103 is embedded in the caulking groove 10211.

Specifically, in one embodiment, as shown in fig. 8, a caulking groove 10211 may be formed at the tooth top portion of the conductive tooth 102, the caulking groove 10211 may have a T-shape or a dovetail-shape as shown in fig. 8, or other shapes capable of preventing the conductive portion 103 from falling, a connection structure corresponding to the shape of the caulking groove 10211 may be formed on the conductive portion 103, and the conductive portion 103 may be slidably inserted into the caulking groove along the X direction.

Alternatively, the conductive part 103 is a flexible conductive adhesive tape, or the conductive part 103 is a rigid structure integrally connected with the conductive teeth 102.

Specifically, in one embodiment, the conductive portion 103 is a flexible conductive adhesive tape in order to avoid damage such as scratch or scratch on the surface of the battery sheet. In addition, from the viewpoint of convenience in manufacturing, the conductive portion 103 may be a rigid structure integrally connected to the conductive teeth 102, and for example, as shown in fig. 6, the conductive portion 103 and the conductive teeth 102 may be formed by one-step molding using the same metal material.

Alternatively, the conductive portion 103 is provided with a metal layer on at least a surface opposite to the tip portion of the conductive tooth 102.

Specifically, in one embodiment, in order to improve the conductivity of the conductive portion 103, a metal layer having high conductivity such as gold or silver may be provided at least on the surface facing the tooth tip portion of the conductive tooth 102. The metal layer may be realized by electroplating or spraying.

Optionally, the conductive part 103 further comprises a rigid support; the rigid support body and the flexible conductive adhesive tape are adhered and fixed into a whole.

Specifically, in one embodiment, in order to facilitate the installation of the flexible conductive adhesive tape, a rigid support may be adhered and fixed to the flexible conductive adhesive tape. For example, the rigid support body is embedded in the flexible conductive adhesive tape to serve as an inner core for forming and supporting, so that the shape stability of the flexible conductive adhesive tape is maintained.

Alternatively, along a direction perpendicular to the length direction of the conductive teeth 102, a cross-section of the conductive portion 103 on a side away from the base 101 is in a U shape, a rounded U shape, or a rounded V shape.

Specifically, in one embodiment, the conductive portion 103 may be rounded at its edge transition portion to avoid damage to the battery plate. For example, the cross-sectional shape of the conductive portion 103 on the side away from the base 101 may be a rounded U-shape as shown in FIG. 8 or FIG. 9, and the cross-sectional shape of the conductive portion 103 on the side away from the base 101 may be a U-shape or a rounded V-shape, along the direction perpendicular to the length of the conductive teeth 102.

In addition, referring to fig. 10, an embodiment of the present utility model further provides a battery plate plating jig, which includes a clamping device 20, a needle-shaped conductive member 30, and the strip-shaped conductive member 10 according to any one of the foregoing embodiments of the present utility model, wherein the needle-shaped conductive member 30 includes a plurality of conductive probes arranged at intervals from each other;

the strip-shaped conductive piece 10 and the needle-shaped conductive piece 30 are simultaneously connected with the clamping device 20, and the strip-shaped conductive piece 10 and the needle-shaped conductive piece 30 are oppositely arranged for clamping a battery piece and transmitting current; or alternatively, the first and second heat exchangers may be,

the two strip-shaped conductive pieces 10 are simultaneously connected with the clamping device 20, and the two strip-shaped conductive pieces 10 are oppositely arranged for clamping the battery piece and transmitting current.

Specifically, the foregoing strip-shaped conductive member 10 may be used in combination with the conventional needle-shaped conductive member 30, or the modified strip-shaped conductive member 10 may be used alone. In either way of use, two sets of conductive members are required to be connected to the clamping device 20 and arranged opposite one another up and down as shown in fig. 10, for clamping the battery cells and transmitting current. When the strip-shaped conductive member 10 is used only at one side of the battery sheet, the plating quality at one side can be improved, and when the strip-shaped conductive member 10 is used at both sides of the battery sheet at the same time, the plating quality at both sides can be improved. Therefore, after the strip-shaped conductive member 10 is used, the capability of the battery piece electroplating clamp for tolerating high current density is improved, and the quality defect of the electroplated grid line can be ensured while the electroplating efficiency is improved.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

The embodiments of the present utility model have been described above with reference to the accompanying drawings, but the present utility model is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present utility model and the scope of the claims, which are to be protected by the present utility model.

Claims (18)

1. A strip-shaped conductive member for electroplating a battery piece, which is characterized by comprising a base body and strip-shaped conductive teeth;

the conductive teeth are connected with the base body, and conductive parts are arranged at tooth top positions of the conductive teeth along the length direction of the conductive teeth, wherein the tooth top positions are end parts of the conductive teeth far away from the base body.

2. The strip-shaped conductive element according to claim 1, wherein the number of the conductive teeth is at least two, at least two of the conductive teeth are connected to one of the substrates, and at least two of the conductive teeth are parallel to each other.

3. The strip-shaped conductive element according to claim 1, wherein the number of the conductive elements is at least two, each of the strip-shaped conductive elements comprising one of the base and one of the conductive teeth;

at least two bases of the strip-shaped conductive pieces are connected, and conductive teeth of the strip-shaped conductive pieces are parallel to each other.

4. The strip-shaped conductive element according to claim 1, wherein the conductive portion is a continuous whole along a length direction of the conductive teeth.

5. The strip conductor of claim 1 wherein the conductive teeth are of unitary construction with the base.

6. The strip conductor of claim 1 wherein each of the conductive teeth is of a split construction with the base;

the base body is provided with a through hole, and the conductive teeth penetrate through the through hole.

7. The strip-shaped conductive element according to claim 6, wherein the conductive teeth comprise a tooth body and a limiting part arranged at one end of the tooth body;

when the conductive teeth penetrate through the through holes, the limiting parts prevent the tooth body main body from falling out after penetrating through the through holes.

8. The strip conductor of claim 6 or 7, further comprising a pretensioning assembly;

the pre-tightening assembly is connected with the base body and used for providing pre-tightening force for the conductive teeth, and the pre-tightening force direction is intersected with the axial direction of the through hole.

9. The strip conductor of claim 8, wherein the pretensioning assembly comprises

A set screw and a first elastic member;

the base body is provided with a screw hole, and the axis of the screw hole is perpendicular to the axis of the through hole;

the first elastic piece is embedded in the screw hole, the set screw is in threaded connection with the screw hole, one end of the first elastic piece is abutted to the conductive tooth, and the other end of the first elastic piece is abutted to the set screw.

10. The strip-shaped conductive element of claim 9, wherein the conductive teeth comprise a plurality of conductive sheets stacked to form the strip-shaped conductive teeth;

the strip-shaped conductive piece further comprises a pressing cover and a second elastic piece, wherein the pressing cover is connected with the base body to form a cavity for accommodating the second elastic piece, and the second elastic piece is arranged in the cavity;

one end of the second elastic piece is abutted with the inner side of the gland, and the other end of the second elastic piece is abutted with the tail end of the conducting strip, wherein the tail end is one end opposite to the tooth top part.

11. The strip-shaped conductive element according to claim 10, wherein the number of the second elastic elements is one, and the second elastic elements simultaneously cover the end of each of the conductive sheets; or alternatively, the first and second heat exchangers may be,

the number of the second elastic pieces is the same as that of the conductive sheets, and the tail end of each conductive sheet is independently abutted with one second elastic piece.

12. The strip-shaped conductive member according to claim 5 or 6, wherein the conductive portion is detachably connected to a tip portion of the conductive tooth.

13. The strip-shaped conductive member according to claim 12, wherein a caulking groove is formed at a tooth top portion of the conductive tooth along a length direction of the conductive tooth, and the conductive portion is embedded in the caulking groove.

14. The strip conductor of claim 1 wherein the conductive portion is a flexible conductive strip; or, the conductive part is a rigid structure integrally connected with the conductive teeth.

15. The strip conductor of claim 14, wherein when the conductor is a flexible strip of conductor, the conductor further comprises a rigid support adhesively secured to the flexible strip of conductor; or when the conductive part is of a rigid structure integrally connected with the conductive teeth, at least the surface opposite to the tooth top part of the conductive teeth is adhered with a flexible conductive adhesive tape.

16. The strip-shaped conductive member according to claim 1, wherein a metal layer is provided on at least a surface of the conductive portion opposite to a tip portion of the conductive tooth.

17. The strip-shaped conductive element according to claim 1, wherein the conductive portion has a cross-sectional shape perpendicular to the length direction of the conductive teeth, which is a U-shape, a rounded corner transition, or a rounded corner transition V-shape.

18. A battery plate plating jig, characterized in that the battery plate plating jig comprises a clamping device, a needle-shaped conductive member and the strip-shaped conductive member according to any one of claims 1 to 17, the needle-shaped conductive member comprising a plurality of conductive probes arranged at intervals from each other;

the strip-shaped conductive piece and the needle-shaped conductive piece are connected with the clamping device at the same time, and the strip-shaped conductive piece and the needle-shaped conductive piece are oppositely arranged and used for clamping a battery piece and transmitting current; or alternatively, the first and second heat exchangers may be,

the two strip-shaped conductive pieces are connected with the clamping device at the same time, and the two strip-shaped conductive pieces are oppositely arranged and used for clamping the battery piece and transmitting current.

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