Pole piece adhesive tape pasting device

Abstract

The utility model discloses a pole piece adhesive tape pasting device, and relates to the technical field of solid-state batteries. The first assembly, the second assembly and the third assembly are sequentially connected in a pivoted mode. The first assembly is provided with a first accommodating position for placing a pole piece to be rubberized; the second assembly is provided with a second containing position used for containing the first adhesive tape. The third assembly is provided with a third containing position used for containing a second adhesive tape, and after the first assembly rotates, the first containing position and the second containing position abut against each other and are attached to each other. After the third assembly rotates, the third containing position abuts against and is attached to the second containing position. According to the pole piece adhesive tape pasting device provided by the utility model, two pieces of adhesive tapes can be pasted on the edge of the pole piece, so that burrs and material falling on the edge of the pole piece are avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to solid battery technical field especially relates to a kind of electrode sheet tape device. BACKGROUND

[0002] In recent years, with the large-scale use of lithium ion battery, the requirement of manufacturing cost and energy density is also higher and higher, and the traditional liquid battery has the problem of low energy density. Among them, the size of the separator in the battery structure is larger than that of the electrode sheet, which reduces the weight energy density and volume energy density of the battery. Through the design of separator-free lamination, the separator can be removed to improve the energy density of the battery, and a solution is provided for the assembly process of the all-solid-state battery.

[0003] However, after the die cutting of the electrode sheet of the separator-free battery, horizontal burrs and vertical burrs are generated. Without the wrapping of the separator, the burrs are very easy to pierce the opposite electrode, causing short circuit of the battery and safety hazards; at the same time, since the positive electrode sheet is relatively small compared to the negative electrode sheet, the positive and negative electrode sheets are prone to misalignment after lamination without the separator.

[0004] The existing tape device is mainly in a single direction, and one strip of adhesive tape is pasted at a time, which cannot complete the pasting and wrapping of four edges at the same time. When multiple strips of adhesive tape are pasted, the corner adhesive tape will have overlapping parts, causing the edge to be too thick. UTILITY MODEL CONTENTS

[0005] An object of the utility model is to provide an electrode sheet tape device that can paste two strips of adhesive tape on the edge of the positive electrode sheet to avoid burrs and material falling off the edge of the electrode sheet.

[0006] Another object of the utility model is to provide an electrode sheet tape device that allows the size of the positive electrode sheet after pasting to be the same as that of the negative electrode sheet, which can effectively prevent misalignment of the electrode sheet during lamination and battery turnover.

[0007] To solve the above technical problems, the utility model provides an electrode sheet tape device, which comprises a first assembly, a second assembly and a third assembly.

[0008] The first assembly is provided with a first accommodating position for placing the electrode sheet to be pasted with adhesive tape.

[0009] The second assembly is pivotally connected to the first assembly, and the second assembly is provided with a second accommodating position for placing a first adhesive tape. When the first assembly is rotated relative to the second assembly, the first accommodating position and the second accommodating position are pressed and fitted, and the electrode sheet to be pasted with adhesive tape and the first adhesive tape are fitted to form a first electrode sheet.

[0010] The third component is pivotally connected with the second component, the third component is provided with a third accommodating position for placing a second adhesive tape, when the third component rotates relative to the second component, the third accommodating position is abuttingly matched with the second accommodating position, and the first pole piece is matched with the second adhesive tape to form a second pole piece.

[0011] Optionally, the first component is provided with a plurality of first vacuum holes at the position of the first accommodating position for vacuum adsorption fixing the pole piece to be pasted with adhesive or the first pole piece.

[0012] The second component is provided with a plurality of second vacuum holes at the position of the second accommodating position for vacuum adsorption fixing the first adhesive tape and the first pole piece or the second pole piece.

[0013] The third component is provided with a plurality of third vacuum holes at the position of the third accommodating position for vacuum adsorption fixing the second adhesive tape and the second pole piece.

[0014] Optionally, the first accommodating position is a first boss or a first groove on the surface of the first component, the first boss or the first groove is uniformly provided with a plurality of first vacuum holes, and the shape of the first boss or the first groove matches the shape of the pole piece to be pasted with adhesive.

[0015] Optionally, the second accommodating position includes a second groove or a second boss, the second groove or the second boss is uniformly provided with a plurality of second vacuum holes, the second groove or the second boss is circumferentially provided with the first adhesive tape, when the first component rotates relative to the second component, the second groove or the second boss is abuttingly matched and matched with the first boss or the first groove to match the first adhesive tape and the pole piece to be pasted with adhesive to form the first pole piece; and / or,

[0016] The third accommodating position includes a third boss or a third groove, the third boss or the third groove is uniformly provided with a plurality of third vacuum holes, the third boss or the third groove is circumferentially provided with the second adhesive tape, when the third component rotates relative to the second component, the third boss or the third groove is abuttingly matched and matched with the second groove or the second boss to match the second adhesive tape and the first pole piece to form the second pole piece.

[0017] Optionally, the second accommodating position comprises a second annular groove and a second boss, the second annular groove is arranged around the circumference of the second boss, a plurality of second vacuum holes are uniformly arranged on the second annular groove and the second boss, the second annular groove is used for placing the first adhesive tape, and the second boss is used for vacuum adsorbing and fixing the first pole piece or the second pole piece.

[0018] The third accommodating position comprises a third annular groove and a third boss, the third annular groove is arranged around the circumference of the third boss, a plurality of third vacuum holes are uniformly arranged on the third annular groove and the third boss, the third annular groove is used for placing the second adhesive tape, and the third boss is used for vacuum adsorbing and fixing the second pole piece.

[0019] Optionally, the depth of the second annular groove is less than or equal to the thickness of the first adhesive tape, and the depth of the third annular groove is less than or equal to the thickness of the second adhesive tape.

[0020] Optionally, the first boss or the first groove of the first accommodating position is partially extended along the circumference to form a first lug portion, and a non-extended portion forms a first pole piece main body portion.

[0021] The second annular groove of the second accommodating position is partially extended along the circumference to form a second lug portion, and the second boss forms a second pole piece main body portion.

[0022] The third annular groove of the third accommodating position is partially extended along the circumference to form a third lug portion, and the third boss forms a third pole piece main body portion.

[0023] The size of the second lug portion and / or the third lug portion is greater than the size of the first lug portion, and the size of the second pole piece main body portion and / or the third pole piece main body portion is less than the size of the first pole piece main body portion.

[0024] Optionally, the first assembly, the second assembly and the third assembly each comprise a bottom plate and a support plate fixedly arranged on the bottom plate, a plurality of vacuum holes communicating with the first accommodating position, the second accommodating position or the third accommodating position are arranged on the support plate, a vacuum cavity is arranged in the bottom plate, a vacuum air suction interface is arranged on the side surface of the bottom plate, and the vacuum holes, the vacuum cavity and the vacuum air suction interface are connected.

[0025] Optionally, the first adhesive tape or the second adhesive tape is an annular adhesive tape.

[0026] Optionally, a plurality of pivot connections are further included, the first assembly and the second assembly, the second assembly and the third assembly are hingedly arranged through the pivot connections, the first assembly and the second assembly are symmetrical about the rotation axis of the pivot connection between the two, and the second assembly and the third assembly are symmetrical about the rotation axis of the pivot connection between the two.

[0027] The polar piece adhesive tape device has the following advantages: after the laminating, the positive polar piece and the negative polar piece are of the same size, and the polar piece mislayering can be effectively prevented during the circulation; meanwhile, the positive polar piece edge can be effectively prevented from burr and material dropping after the insulation treatment of the adhesive tape, the positive polar piece edge burr and the negative polar piece edge overlap are avoided, and the polar piece short circuit is prevented. BRIEF DESCRIPTION OF DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the prior art and the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0029] Figure 1 The structure schematic view of the polar piece adhesive tape device provided by the present application is shown in the figure.

[0030] Figure 2 The structure schematic view of the first assembly of the polar piece adhesive tape device is shown in the figure. Figure 1 The structure schematic view of the first assembly of the polar piece adhesive tape device is shown in the figure.

[0031] Figure 3 The structure schematic view of the first assembly of the polar piece adhesive tape device is shown in the figure. Figure 2 The structure schematic view of the first assembly of the polar piece adhesive tape device is shown in the figure.

[0032] Figure 4 The structure schematic view of the first assembly of the polar piece adhesive tape device is shown in the figure. Figure 1 The structure schematic view of the first assembly of the polar piece adhesive tape device is shown in the figure.

[0033] Figure 5 The structure schematic view of the first assembly of the polar piece adhesive tape device is shown in the figure. Figure 1 The structure schematic view of the first assembly of the polar piece adhesive tape device is shown in the figure.

[0034] Figure 6 The structure schematic view of the first assembly of the polar piece adhesive tape device is shown in the figure.

[0035] Figure 7 The structure schematic view of the first assembly of the polar piece adhesive tape device is shown in the figure.

[0036] Figure 8The utility model provides a structure schematic diagram of the glued pole piece. DETAILED DESCRIPTION

[0037] The core of the utility model provides a kind of pole piece adhesive tape device, can be used in the positive pole piece edge adhesive tape of the membrane-free lamination process of solid or semi-solid membrane-free battery.The battery of membrane-free lamination, solid electrolyte is introduced on its positive pole piece and / or pole piece 4, and electrolyte material can be any one or the composite of multiple of oxide, sulfide, polymer.

[0038] To make the purpose, technical scheme and advantage of the utility model embodiment clearer, the technical scheme in the utility model embodiment will be clearly and completely described below with the drawings in the utility model embodiment, apparently, the described embodiment is part of the embodiment of the utility model, not all embodiments.Based on the embodiment in the utility model, all other embodiments obtained by the person skilled in the art without making creative labor belong to the scope of the utility model protection.

[0039] Please refer to Figure 1 , Figure 1 The utility model provides a kind of pole piece adhesive tape device's structure schematic diagram, and the pole piece adhesive tape device includes respectively pivotally connected first component 1, second component 2 and third component 3.First component 1 is provided with first accommodating site 11.First accommodating site 11 can be used to place fixed to be pasted glue pole piece.Second component 2 is provided with second accommodating site 21.Second component 2 and first component 1 are pivotally connected, and second accommodating site 21 is used to place first adhesive tape, when first component 1 rotates relative to second component 2, first accommodating site 11 and second accommodating site 21 are pressed and fit, and to be pasted glue pole piece and first adhesive tape fit to form first pole piece.Third component 3 is provided with third accommodating site 31.Third component 3 and second component 2 are pivotally connected, and third accommodating site 31 is used to place second adhesive tape, when third component 3 rotates relative to second component 2, third accommodating site 31 and second accommodating site 21 are pressed and fit, and first pole piece and second adhesive tape fit to form second pole piece.When first component 1 rotates around pivot connecting piece 5, first accommodating site 11 can be pressed and fit or be pressed and close to second accommodating site 21.When third component 3 rotates around pivot connecting piece 5, third accommodating site 31 can be pressed and fit or be pressed and close to second accommodating site 21.

[0040] In the present application, the pole piece 4 refers to the battery pole piece after die cutting, the edge of which can generate transverse burrs and longitudinal burrs, that is, the to-be-glued pole piece; the first pole piece refers to the pole piece obtained after the adhesive tape on the second assembly 2 is attached to the to-be-glued pole piece, one side of which is glued, and the other side is not glued; the second pole piece refers to the pole piece obtained after the adhesive tape on the third assembly 3 is attached to the first pole piece, both sides of which are glued. The adhesive tape 6 is a ring-shaped adhesive tape, which is the first adhesive tape when it is placed on the second assembly 2, and is the second adhesive tape when it is placed on the third assembly 3. It should be understood that the first adhesive tape and the second adhesive tape can be the same, or can be selected according to actual conditions, so that after the first adhesive tape and the second adhesive tape are attached to the to-be-glued pole piece, the edge part of the to-be-glued pole piece is tightly attached.

[0041] Optionally, the pole piece adhesive tape attaching device further comprises a plurality of pivot connections 5. The first assembly 1 and the second assembly 2, and the second assembly 2 and the third assembly 3 are hingedly arranged through the pivot connections 5. The first assembly 1 and the second assembly 2 are symmetrical about the rotation axis of the pivot connection 5 therebetween, and the second assembly 2 and the third assembly 3 are symmetrical about the rotation axis of the pivot connection 5 therebetween. Of course, those skilled in the art can select other rotatable connections to connect the first assembly 1 and the second assembly 2, and the second assembly 2 and the third assembly 3 according to actual conditions, which are not limited herein.

[0042] In use of the device, first, the pole piece 4 is placed at the first accommodating position 11, and the die-cut finished adhesive tapes are placed at the second accommodating position 21 and the third accommodating position 31, with the adhesive surfaces facing upward. Then, the first assembly 1 is rotated, so that the pole piece 4 is pressed against the second accommodating position 21, and the adhesive tape 6 is attached to the pole piece 4; then the first assembly 1 is rotated back, and the pole piece 4 is adsorbed and fixed at the second accommodating position 21; then the third assembly 3 is rotated, so that the third accommodating position 31 is pressed against the pole piece 4 at the second accommodating position 21, to realize the adhesive tape attachment to the other side of the pole piece 4. Finally, the third assembly 3 is rotated back, and the second pole piece with the attached adhesive tape 6 can be taken off.

[0043] Specifically, the pole piece adhesive tape attaching device provided by the present application can fix the pole piece 4 at the first accommodating position 11 through vacuum adsorption, electrostatic adsorption, clamping fixation, adhesive fixation, etc. The purpose is to temporarily fix the pole piece 4, so that the pole piece 4 does not displace when the first assembly 1 is rotated. The second accommodating position 21 and the third accommodating position 31 are used to place the adhesive tape, and the way to fix the adhesive tape can also be vacuum adsorption, electrostatic adsorption, clamping fixation, adhesive fixation, etc. The purpose is that the position of the adhesive tape does not displace during the process that the adhesive tape 6 is attached to the pole piece 4 after the pole piece 4 is pressed against the adhesive tape 6, and the adhesive tape can be conveniently taken off subsequently.

[0044] In a specific embodiment, as shown in Figures 1-5As shown, the first receiving position 11, the second receiving position 21, and the third receiving position 31 are all fixed by vacuum adsorption. That is, the first component 1 is provided with a plurality of first vacuum holes 12 at the position of the first receiving position 11 for vacuum adsorption to fix the electrode 4. The second component 2 is provided with a plurality of second vacuum holes 22 at the position of the second receiving position 21. The second vacuum holes 22 are used for vacuum adsorption to fix the first adhesive tape and the first electrode or the second electrode. The third component 3 is provided with a plurality of third vacuum holes 32 at the position of the third receiving position 31. The third vacuum holes 32 are used for vacuum adsorption to fix the second adhesive tape and the second electrode.

[0045] Optionally, vacuum holes are evenly distributed at the first receiving position 11, the second receiving position 21, and the third receiving position 31. The multiple vacuum holes at each receiving position are connected to an external vacuum pumping device to control vacuum adsorption or non-adsorption at each receiving position.

[0046] In one specific embodiment, the shape of the first receiving position 11 corresponds to and matches the shape of the electrode 4. For example... Figure 2 As shown, the first receiving position 11 is the first protrusion 13 on the surface of the first component 1. Optionally, the first receiving position 11 can also be the first groove on the surface of the first component 1 (not shown in the figure). Its purpose is to place the electrode 4 and facilitate the identification of the placement position of the electrode 4. For example, the shape of the first protrusion 13 or the first groove matches the shape of the electrode to be glued, so that the placement position of the electrode 4 can be identified by positioning the edge of the first protrusion 13 or the first groove.

[0047] The second receiving position 21 includes a second groove 23 (or a second boss, which is shown in the figure as the second groove 23). A plurality of second vacuum holes 22 are evenly provided on the second groove 23 (or the second boss). A first adhesive tape is provided circumferentially on the second groove 23 (or the second boss). When the first component 1 rotates relative to the second component 2, the second groove 23 (or the second boss) and the first boss 13 (or the first groove) press against each other and fit together to bond the first adhesive tape and the electrode sheet to be bonded to form the first electrode sheet.

[0048] Corresponding to the second receiving position 21, the third receiving position 31 also includes a third protrusion 33 (or a third groove). A plurality of third vacuum holes 32 are uniformly arranged on the third protrusion 33 (or the third groove). A second adhesive tape is circumferentially arranged on the third protrusion 33 (or the third groove). When the third component 3 rotates relative to the second component 2, the third protrusion 33 (or the third groove) and the second groove 23 (or the second protrusion) press against each other and fit together, so as to bond the second adhesive tape and the first electrode sheet to form the second electrode sheet.

[0049] It should be understood that the second accommodating position 21 and the third accommodating position 31 can also be provided as a structure of a boss or a groove, which can be matched with the first accommodating position 11 to realize mutual pressing and sticking of the adhesive tape on the pole piece.

[0050] In another specific embodiment, the second accommodating position 2 includes a second annular groove 24 and a second boss. The second annular groove 24 is arranged around the circumference of the second boss. The second annular groove 24 and the second boss are uniformly provided with a plurality of second vacuum holes 22. The second annular groove 24 is used to place the first adhesive tape. The depth of the second annular groove 24 is less than or equal to the thickness of the first adhesive tape, and the height of the second boss is slightly higher than the height of the second annular groove 24, so as to facilitate the placement of the first adhesive tape. The second boss is used to vacuum adsorb and fix the first pole piece or the second pole piece.

[0051] Similar to the second accommodating position 21, the third accommodating position 3 includes a third annular groove 34 and a third boss. The third annular groove 34 is arranged around the circumference of the third boss. The third annular groove 34 and the third boss are uniformly provided with a plurality of third vacuum holes 32. The third annular groove 34 is used to place the second adhesive tape. The depth of the third annular groove 34 is less than or equal to the thickness of the second adhesive tape, and the height of the third boss is slightly higher than the height of the third annular groove 34, so as to facilitate the placement of the second adhesive tape. The third boss is used to vacuum adsorb and fix the second pole piece.

[0052] As Figure 6 is a schematic diagram of the adhesive tape 6 used by the device, Figure 7 is a schematic diagram of the pole piece 4 used by the device. Figure 8 is a structural schematic diagram of the glued pole piece. The adhesive tape 6 is an annular adhesive tape. The size and shape of the adhesive tape 6 are selected according to the size and shape of the pole piece to be glued. Optionally, the material of the adhesive tape 6 is any one of PI (polyimide), PET (polyethylene terephthalate), PP (polypropylene), BOPP (biaxially oriented polypropylene) film, or other adhesive tape materials selected by those skilled in the art on the battery pole piece as needed.

[0053] It should be noted that since the pole piece 4 of the battery has a tab 41, the first accommodating position 11 also includes a tab position. The annular groove of the second accommodating position 21 and the third accommodating position 31 is provided with a corresponding position for the adhesive tape used to paste the tab 41. As Figure 8As shown in the utility model, in order to prevent the short circuit of the tab of the positive plate and the edge of the negative plate, the width b of the corresponding position of the adhesive tape used for pasting the tab 41 is greater than the width of the tab 41 of the positive plate 4, and the height h of the corresponding position of the adhesive tape used for pasting the tab 41 is greater than the height of the tab 41 of the positive plate 4, so that the position of the tab 41 of the positive plate close to the main body part of the positive plate is tightly pasted after the adhesive tape is pasted, the short circuit of the tab 41 of the positive plate and the edge of the negative plate is prevented, and the position of the tab 41 of the positive plate away from the main body part of the positive plate is leaked after the adhesive tape is pasted, so that the tabs 41 of the plurality of positive plates are connected with each other. The specific width and height can be selected according to actual conditions, so that the adhesive tape exceeds the edge of the negative plate in the height direction.

[0054] As shown in the utility model, Figure 1 The first accommodating position 11 has a first tab part 14 and a first positive plate main body part 15, the second accommodating position 21 has a second positive plate main body part 26 and a second tab part 25, and the third accommodating position 31 has a third positive plate main body part 36 and a third tab part 35. As can be understood from the adhesion of the tab part, the width of the second tab part 25 and the third tab part 35 is greater than the width of the first tab part 14, and optionally, the width of the second tab part 25 and the third tab part 35 is 1-3 mm greater. The height of the second tab part 25 and the third tab part 35 is less than the height of the first tab part 14. Optionally, the height of the first tab part 14 is 3-5 mm greater.

[0055] In a specific embodiment, in order to reduce the cost of the device and simplify the preparation process of the device, the first assembly 1, the second assembly 2 and the third assembly 3 all adopt a split structure design. Specifically, as shown in the utility model, Figure 4 And 5 The first assembly 1, the second assembly 2 and the third assembly 3 all include a bottom plate 100 and a support plate 110. The support plate 110 is fixedly arranged on the bottom plate 100. A plurality of vacuum holes are arranged on the support plate 110. The bottom plate 100 is provided with a vacuum cavity 102, and support blocks are arranged at the edges or the peripheral corners of the vacuum cavity 102. The support blocks are used for supporting the support plate 110 and forming the vacuum cavity 102 between the bottom surface of the support plate 110 and the inner side surface of the bottom plate 100. The side surface of the bottom plate 100 is provided with a vacuum air extraction interface 101, the vacuum air extraction interface 101 is communicated with the vacuum cavity 102, the plurality of vacuum holes are all communicated with the vacuum cavity 102, and the vacuum air extraction interface 101 can be connected with an external vacuum extraction device such as a vacuum pump. Of course, the first assembly 1, the second assembly 2 and the third assembly 3 can also adopt other ways or structures to fix the positive plate 4 and the adhesive tape 6.

[0056] The working process of the positive plate adhesive tape device provided by the utility model is as follows:

[0057] Firstly, the pole piece 4 of the diaphragmless battery is placed at the first accommodating position 11, and the die-cut finished adhesive tape is placed at the second accommodating position 21 and the third accommodating position 31, and the adhesive surface faces upwards; the vacuum adsorption is fixed to prevent displacement. Then, the first assembly 1 is rotated (for example, 180°), so that the pole piece 4 is pressed against the second accommodating position 21, so that the adhesive tape 6 is pasted on the pole piece 4; then, the first assembly 1 stops vacuum adsorption, and the first assembly 1 is rotated back, and the pole piece 4 is adsorbed and fixed at the second accommodating position 21; then, the third assembly 3 is rotated, so that the third accommodating position 31 is pressed against the pole piece 4 at the second accommodating position 21, and the adhesive tape on the other side of the pole piece 4 is pasted. Then, the third assembly 3 stops vacuum adsorption, and the third assembly 3 is rotated back; finally, the second assembly 2 stops vacuum adsorption, and the pole piece 4 with the pasted adhesive tape 6 is taken out.

[0058] The positive pole piece is pasted with the adhesive tape, and then the negative pole piece, the positive pole piece, the negative pole piece, the positive pole piece, the negative pole piece are stacked layer by layer, the diaphragmless pole piece is completed, and the diaphragmless core is formed; the diaphragmless core is subjected to welding, packaging, liquid injection, formation, two sealing, capacity distribution, aging and other processes, or is completed through a square shell battery production process, so that the diaphragmless battery core is obtained. The semi-solid battery needs to inject a certain amount of electrolyte, and the all-solid battery does not need to inject electrolyte.

[0059] The positive pole piece after the adhesive tape is pasted has the same size, width and height as the negative pole piece by selecting the thickness and shape of the adhesive tape 6. Therefore, the pole piece can be effectively prevented from being dislocated during the stacking and battery turnover.

[0060] It should be noted that, in the present specification, the relational terms such as first and second and the like are used solely to distinguish one entity or action from another, without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations 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 can include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element preceded by "comprises a" does not, without more constraints, foreclose the existence of additional identical elements in the process, method, article, or apparatus that comprises the recited element.

[0061] The above description of disclosed embodiments enables one of ordinary skill in the art to make or use the application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein can be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An electrode tape application device, which can be used for electrode tape application in membrane-less batteries, characterized in that, include The first component has a first receiving position for placing the adhesive electrode sheet to be bonded. A second component, pivotally connected to the first component, is provided with a second receiving position for placing the first adhesive tape. When the first component rotates relative to the second component, the first receiving position and the second receiving position press against each other, and the electrode sheet to be bonded is bonded to the first adhesive tape to form a first electrode sheet; and The third component is pivotally connected to the second component. The third component is provided with a third receiving position for placing the second tape. When the third component rotates relative to the second component, the third receiving position and the second receiving position press against each other and adhere to each other, and the first electrode sheet and the second tape adhere to each other to form the second electrode sheet.

2. The electrode tape applicator according to claim 1, characterized in that, The first component has a plurality of first vacuum holes arrayed at the position of the first receiving position for vacuum adsorption to fix the adhesive electrode sheet to be attached or the first electrode sheet. The second component has a plurality of second vacuum holes arrayed at the position of the second accommodating position for vacuum adsorption to fix the first tape and the first electrode or the second electrode; The third component has a plurality of third vacuum holes arranged in an array at the position of the third accommodating position for vacuum adsorption to fix the second tape and the second electrode.

3. The electrode tape applicator according to claim 2, characterized in that, The first receiving position is a first protrusion or a first groove on the surface of the first component. A plurality of first vacuum holes are uniformly provided on the first protrusion or the first groove, and the shape of the first protrusion or the first groove matches the shape of the electrode sheet to be bonded.

4. The electrode tape applicator according to claim 3, characterized in that, The second receiving position includes a second groove or a second protrusion, and a plurality of second vacuum holes are uniformly disposed on the second groove or the second protrusion. The first adhesive tape is disposed circumferentially on the second groove or the second protrusion. When the first component rotates relative to the second component, the second groove or the second protrusion abuts and fits against the first protrusion or the first groove to bond the first adhesive tape and the electrode sheet to be bonded to form the first electrode sheet; and / or, The third receiving position includes a third protrusion or a third groove. A plurality of third vacuum holes are uniformly provided on the third protrusion or the third groove. The second adhesive tape is arranged circumferentially on the third protrusion or the third groove. When the third component rotates relative to the second component, the third protrusion or the third groove abuts and fits against the second groove or the second protrusion to bond the second adhesive tape and the first electrode sheet to form the second electrode sheet.

5. The electrode tape applicator according to claim 3, characterized in that, The second receiving position includes a second annular groove and a second protrusion. The second annular groove is circumferentially arranged around the second protrusion. A plurality of second vacuum holes are evenly distributed on the second annular groove and the second protrusion. The second annular groove is used to place the first adhesive tape; the second protrusion is used for vacuum adsorption to fix the first electrode or the second electrode; and / or, The third receiving position includes a third annular groove and a third protrusion. The third annular groove is arranged circumferentially around the third protrusion. A plurality of third vacuum holes are evenly arranged on the third annular groove and the third protrusion. The third annular groove is used to place the second adhesive tape, and the third protrusion is used for vacuum adsorption to fix the second electrode.

6. The electrode tape applicator according to claim 5, characterized in that, The depth of the second annular groove is less than or equal to the thickness of the first tape, and the depth of the third annular groove is less than or equal to the thickness of the second tape.

7. The electrode tape applicator according to claim 5, characterized in that, The first protrusion or the first groove of the first accommodating position extends circumferentially to form a first electrode ear, and the non-extended portion forms a first electrode body portion. The second annular groove of the second receiving position extends circumferentially to form a second electrode ear, and the second boss is formed as the main body of the second electrode plate; The third annular groove of the third accommodating position extends circumferentially to form a third electrode ear, and the third boss is formed as the main body of the third electrode plate. The size of the second electrode ear and / or the third electrode ear is larger than the size of the first electrode ear, and the size of the second electrode body and / or the third electrode body is smaller than the size of the first electrode body.

8. The electrode tape applicator according to claim 1, characterized in that, The first component, the second component, and the third component all include a base plate and a support plate fixedly disposed on the base plate. The support plate is provided with a plurality of vacuum holes communicating with the first accommodating position, the second accommodating position, or the third accommodating position. The base plate is provided with a vacuum cavity, and the side of the base plate is provided with a vacuum extraction port. The vacuum holes, the vacuum cavity, and the vacuum extraction port are connected.

9. The electrode tape applicator according to claim 1, characterized in that, The first tape or the second tape is a ring-shaped tape.

10. The electrode tape applicator according to claim 1, characterized in that, It also includes multiple pivoting connections, with the first component and the second component, and the second component and the third component hinged together by the pivoting connections. The first component and the second component are symmetrical about the pivoting connection between them, and the second component and the third component are symmetrical about the pivoting connection between them.

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