CN116885027A - Battery string preparation method and battery string preparation equipment - Google Patents
Battery string preparation method and battery string preparation equipment Download PDFInfo
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- CN116885027A CN116885027A CN202311063762.1A CN202311063762A CN116885027A CN 116885027 A CN116885027 A CN 116885027A CN 202311063762 A CN202311063762 A CN 202311063762A CN 116885027 A CN116885027 A CN 116885027A
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- battery string
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- 238000002360 preparation method Methods 0.000 title claims abstract description 48
- 238000003466 welding Methods 0.000 claims abstract description 194
- 239000004020 conductor Substances 0.000 claims abstract description 92
- 239000012528 membrane Substances 0.000 claims abstract description 33
- 238000007711 solidification Methods 0.000 claims abstract description 21
- 230000008023 solidification Effects 0.000 claims abstract description 21
- 238000004519 manufacturing process Methods 0.000 claims abstract description 13
- 230000007246 mechanism Effects 0.000 claims description 111
- 238000003825 pressing Methods 0.000 claims description 111
- 238000001723 curing Methods 0.000 claims description 63
- 238000010438 heat treatment Methods 0.000 claims description 44
- 230000000712 assembly Effects 0.000 claims description 13
- 238000000429 assembly Methods 0.000 claims description 13
- 238000013007 heat curing Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 8
- 235000012431 wafers Nutrition 0.000 claims description 6
- 238000001179 sorption measurement Methods 0.000 claims description 5
- 230000009471 action Effects 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 239000002313 adhesive film Substances 0.000 description 26
- 229910000679 solder Inorganic materials 0.000 description 17
- 238000005520 cutting process Methods 0.000 description 9
- 230000001360 synchronised effect Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000011324 bead Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
- H01L31/042—PV modules or arrays of single PV cells
- H01L31/05—Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells
- H01L31/0504—Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells specially adapted for series or parallel connection of solar cells in a module
- H01L31/0516—Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells specially adapted for series or parallel connection of solar cells in a module specially adapted for interconnection of back-contact solar cells
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/18—Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof
- H01L31/1876—Particular processes or apparatus for batch treatment of the devices
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
Abstract
The application relates to the technical field of photovoltaic cell production, in particular to a preparation method of a battery string and battery string preparation equipment. According to the preparation method of the battery string, the welding strip group and the membrane strip are fixedly connected, and then are adhered and fixed on the battery piece together, so that the phenomenon that the welding strip group at the part which is not adhered by the membrane strip is easy to deviate and bend is avoided, and the pressure application assembly ensures the connection stability of the welding strip group and the membrane strip. A plurality of welding strips can be paved on the membrane strip at the same time, and the membrane strip paved with the welding strips is simultaneously solidified and connected for the first time, so that the efficiency of solidification and connection is effectively improved; meanwhile, the plurality of battery pieces are paved on the conductor assembly, and are subjected to secondary solidification connection, so that the preparation process of the battery string is effectively simplified, and the preparation efficiency of the battery string is effectively improved. The battery string preparation equipment provided by the application also has the technical effects.
Description
Technical Field
The application relates to the technical field of photovoltaic cell production, in particular to a preparation method of a battery string and battery string preparation equipment.
Background
The front surface of the battery piece of the back contact battery string is not provided with a main grid line, and the positive electrode row and the negative electrode row of the battery piece are arranged on the back surface of the battery piece, so that shading of the battery piece is reduced, and the light conversion efficiency of the battery piece is improved. Therefore, the back contact battery string only needs to be connected with a welding strip on the back surface of the battery string.
Because the welding strips in the back contact battery string are arranged at intervals in a staggered manner, the welding strips are positioned between the adhesive film and the battery pieces, and the clamping of the welding strips before combining the adhesive film, the adhesive film and the battery pieces are positioned between the adhesive film and the battery pieces in a transferring manner by clamping the two ends of the welding strips, and the battery pieces positioned at the bottom layer are adhered to the adhesive film above the welding strips in a clamping manner by clamping the head end and the tail end of the welding strips and simultaneously combined with the battery pieces and the adhesive film, the welding strips can be released after being fixed by the adhesive film.
However, in the above manner, the welding strips of the clamped part cannot be adhered and fixed on the battery piece together by the adhesive film, the welding strips of the part which is not adhered by the adhesive film are easy to deviate and bend, so that a circuit after the welding strips of the photovoltaic module is bad, the adhesive film is paved from the top of the welding strips, the two ends of the welding strips are clamped and fixed, the adhesive film can only be paved in the space between the clamping mechanisms in a small-piece mode, and the adhesive film is in one-to-one correspondence with the battery pieces, and the same adhesive film cannot span the corresponding welding strips of a plurality of battery pieces for one-time adhesion, so that the complexity of processing and paving the film strips is increased.
Disclosure of Invention
The application provides a battery string preparation method and battery string preparation equipment, which can effectively solve the above or other potential technical problems.
A first aspect of the present application provides a method of manufacturing a battery string, comprising:
paving a film strip with a preset length;
m welding strips are staggered to form an array on the membrane strip;
pressing the top of the welding strip group towards one side of the film strip by adopting a pressing assembly, and simultaneously, carrying out first solidification connection on the film strip and M welding strip groups, wherein the welding strip groups and the film strip which are connected together form a conductor assembly;
laying N battery pieces on one side of the conductor component, which is close to the welding strip group, and performing secondary solidification connection on the battery pieces and the conductor component to form a battery string;
wherein, when M is more than or equal to 2, N is more than or equal to 1; when M is more than or equal to 3, N is more than or equal to 2.
According to the preparation method of the battery string provided by the first aspect of the application, M welding strip groups are staggered and arranged on a film strip with a preset length in an array manner, a pressing assembly is adopted to press the top of the welding strip group towards one side of the film strip, and meanwhile, the welding strip groups are connected through primary solidification to form a conductor assembly; and then, paving N battery pieces on one side of the conductor component, which is close to the welding strip group, and performing secondary solidification connection on the battery pieces and the conductor component to form a battery string. According to the preparation method of the battery string, the welding strip group and the membrane strip are fixedly connected, and then are adhered and fixed on the battery piece together, so that the phenomenon that the welding strip group at the part which is not adhered by the membrane strip is easy to deviate and bend can be effectively avoided, and the pressure applying component further ensures the connection stability of the welding strip group and the membrane strip. Simultaneously, a plurality of welding strips can be paved on the membrane strip at the same time, and the membrane strip paved with the welding strips is simultaneously solidified and connected for the first time to form a conductor assembly, so that the efficiency of solidification and connection is effectively improved; and then lay a plurality of battery pieces on conductor assembly simultaneously, can carry out the solidification connection of secondary to a plurality of battery pieces simultaneously, simplified the preparation process of battery cluster effectively, and then promoted the preparation efficiency of battery cluster effectively.
In an alternative embodiment according to the first aspect, the first and second curing connections are provided at a first and a second station, respectively, which are consecutive, after the first curing connection is completed at the first station, a conductor assembly is formed, and the conductor assembly is transported to the second station for a second curing, while the curing of the conductor assembly of the next group is performed at the first station.
In an alternative embodiment according to the first aspect, the first curing is a conductive heat curing and the second curing is a conductive heat curing and/or an infrared heat curing;
the first curing is instantaneous heating when the welding band group is contacted with the film strip, or the first curing is continuous heating from the moment when the welding band group is contacted with the film strip to the moment before the second curing.
In an alternative embodiment according to the first aspect, the pressing assembly comprises a movable press, the movable press being pressed against the ribbon set, the movable press being movable with the conductor assembly, the movable press being removed from the conductor assembly when the battery is laid in close proximity, and the battery being laid on the side of the conductor assembly adjacent to the ribbon set.
In an alternative embodiment according to the first aspect, the pressing assembly comprises a fixed presser that presses against the top of the strap set such that the strap set is laid flat on the membrane strip, the fixed presser being removed from the conductor assembly before the conductor assembly is moved to the station where the battery cells are laid.
The second aspect of the application also provides a battery string preparation device based on the battery string preparation method; the battery string preparation equipment comprises a film strip driving mechanism, a belt conveying mechanism, a driving bearing table, a pressing assembly, a first curing part, a second curing part and a sheet conveying mechanism; the film strip driving mechanism is used for dragging the film strip to the driving bearing table and approaching to the position corresponding to the belt conveying mechanism; the tape conveying mechanism is used for grabbing M welding tape groups which are staggered and arranged on the film strips in an array manner; the pressing component is used for pressing the top of the welding band group; the first curing piece is used for carrying out first curing connection on the film strip and the M welding strip groups to form a conductor assembly; the driving bearing table is used for conveying the conductor assembly to a position close to the sheet conveying mechanism by laying; the wafer conveying mechanism lays N battery wafers on one side of the conductor assembly, which is close to the welding belt; the second curing member is used for performing second curing connection on the battery piece and the conductor assembly to form a battery string.
The battery string preparation equipment provided by the application is based on the battery string preparation method, so that the phenomenon that the welding belt group at the part which is not bonded by the film strip is easy to deviate and bend can be effectively avoided, and the stability of the connection between the welding belt group and the film strip is further ensured. Meanwhile, the preparation process of the battery string is effectively simplified, and the technical effect of the preparation efficiency of the battery string is effectively improved.
In an alternative embodiment according to the second aspect, the strap transporting mechanism includes a plurality of strap clamping hands, two strap clamping hands arranged opposite to each other are used for clamping two ends of a same welding strap set, the plurality of strap clamping hands are used for clamping two ends of M welding strap sets simultaneously, and the M welding strap sets are staggered in an array arrangement; the pressing assemblies are arranged between two oppositely arranged clamping hands in a penetrating mode, and each pressing assembly correspondingly presses the tops of two welding band groups which are arranged in a staggered mode.
In an alternative embodiment according to the second aspect, the pressing assembly comprises a lifting drive mechanism and a presser, the presser being connected to the driving end of the lifting drive mechanism, the fixed end of the lifting drive mechanism being connected between two oppositely arranged clamping hands; wherein, the presser elastically presses the top of the welding band group; the pressing tool is fixedly connected with the lifting driving mechanism, so that the pressing tool elastically presses the top of the welding strip group, the welding strip group is released by the clamping hand after the first curing connection is completed, and meanwhile, the pressing tool moves along with the lifting driving mechanism in a direction away from the welding strip group; or, the pressing tool is movably connected with the lifting driving mechanism, one end of the lifting driving mechanism is movably used for grabbing the pressing tool, the pressing tool is used for paving the welding strip group on the surface of the membrane strip along with the clamping hand, the pressing tool elastically abuts against the top of the welding strip group, the clamping hand is used for releasing the two ends of the welding strip group and is far away from the welding strip group, the pressing tool is separated from the lifting driving mechanism and continuously abuts against the top of the welding strip group, and the pressing tool is stopped on the top surface of the welding strip group along with the pressing tool and moves along with the direction of the conductor component towards the second station.
In an alternative embodiment according to the second aspect, the drive carrier comprises a conveyor belt for conveying the conductor assemblies from the first station to the second station at the rear end for synchronizing the first station for processing of the conductor assemblies of the next group.
In an alternative embodiment according to the second aspect, the battery string preparation apparatus further includes a film feeding mechanism, the film strip is wound on the film feeding mechanism, and the film strip driving mechanism pulls one end of the film strip, so that the film strip is released from the film feeding mechanism and laid on the driving bearing table under the action of external force, or is transported to the front end of the driving bearing table by the film transporting hand after being cut into a film strip with a fixed length.
In an alternative embodiment according to the second aspect, the first curing member comprises a heating assembly arranged on the pressing assembly and/or the drive carrier; the heating component is arranged at the position corresponding to the driving bearing table and the belt conveying mechanism, or is arranged at the position corresponding to the driving bearing table and the belt conveying mechanism and is terminated at the second curing part, so that the heating component is used for continuously heating the conductor component; the second solidifying piece is a heating unit which is arranged on the driving bearing table; and/or the second solidification piece is an infrared heating piece, and the infrared heating piece is arranged above the corresponding driving bearing table.
In an alternative embodiment according to the second aspect, a plurality of suction holes are provided on the drive carrier for sucking the membrane strip onto the drive carrier.
Additional aspects of the 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 the application.
Drawings
The above and other objects, features and advantages of embodiments of the present application will become more readily apparent from the following detailed description with reference to the accompanying drawings. Embodiments of the application will now be described, by way of example and not limitation, in the figures of the accompanying drawings, in which:
fig. 1 is a schematic diagram of a partial structure of a battery string preparing apparatus according to an embodiment of the present disclosure, including a sheet conveying mechanism;
fig. 2 is a schematic view showing a partial structure of a battery string preparing apparatus according to an embodiment of the present disclosure, including a pressing assembly;
fig. 3 is a schematic view showing a partial structure of a battery string preparing apparatus according to an embodiment of the present disclosure including a heating assembly;
fig. 4 is a schematic view of a battery string prepared by the battery string preparing apparatus according to the embodiment of the present disclosure;
fig. 5 is a schematic view of a partial structure of a battery string preparing apparatus according to an embodiment of the present disclosure including a film supplying mechanism;
fig. 6 is a schematic view of a battery string manufacturing apparatus according to an embodiment of the present disclosure intermittently processing battery strings.
Reference numerals illustrate:
10. a battery string preparing apparatus; 11. a film strip driving mechanism; 12. a belt conveying mechanism; 13. driving the bearing table; 14. a pressing assembly; 141. a press; 15. a heating assembly; 16. a sheet conveying mechanism; 17. a film supply mechanism; 18. a film cutting mechanism; 19. a tape supply mechanism; 191. a belt cutting mechanism; 21. a membrane strip; 22. welding a band group; 23. and a battery piece.
Detailed Description
Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present application and should not be construed as limiting the application.
It should be understood that the following examples do not limit the order of execution of the steps in the method claimed in the present application. The individual steps of the method of the application can be carried out in any possible order and in a cyclic manner without contradiction.
In the description of the present application, it should be understood that the terms "length," "width," "thickness," "upper," "lower," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present application and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be a mechanical connection; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
The front surface of the battery piece of the back contact battery string is not provided with a main grid line, and the positive electrode row and the negative electrode row of the battery piece are arranged on the back surface of the battery piece, so that shading of the battery piece is reduced, and the light conversion efficiency of the battery piece is improved. Therefore, the back contact battery string only needs to be connected with a welding strip on the back surface of the battery string. Because the welding strips in the back contact battery string are arranged at intervals in a staggered manner, the welding strips are positioned between the adhesive film and the battery pieces, and the clamping of the welding strips before combining the adhesive film, the adhesive film and the battery pieces are positioned between the adhesive film and the battery pieces in a transferring manner by clamping the two ends of the welding strips, and the battery pieces positioned at the bottom layer are adhered to the adhesive film above the welding strips in a clamping manner by clamping the head end and the tail end of the welding strips and simultaneously combined with the battery pieces and the adhesive film, the welding strips can be released after being fixed by the adhesive film.
However, in the above manner, the welding strips of the clamped part cannot be adhered and fixed on the battery piece together by the adhesive film, the welding strips of the part which is not adhered by the adhesive film are easy to deviate and bend, so that a circuit after the welding strips of the photovoltaic module is bad, the adhesive film is paved from the top of the welding strips, the two ends of the welding strips are clamped and fixed, the adhesive film can only be paved in the space between the clamping mechanisms in a small-piece mode, and the adhesive film is in one-to-one correspondence with the battery pieces, and the same adhesive film cannot span the corresponding welding strips of a plurality of battery pieces for one-time adhesion, so that the complexity of processing and paving the film strips is increased.
In view of this, in the method for manufacturing a battery string according to the first aspect of the present application, M solder strips are staggered in an array on a film strip with a preset length, and a pressing assembly is used to press the top of the solder strip towards one side of the film strip, and at the same time, the solder strips are connected by first solidification to form a conductor assembly; and then, paving N battery pieces on one side of the conductor component, which is close to the welding strip group, and performing secondary solidification connection on the battery pieces and the conductor component to form a battery string. According to the preparation method of the battery string, the welding strip group and the membrane strip are fixedly connected, and then are adhered and fixed on the battery piece together, so that the phenomenon that the welding strip group at the part which is not adhered by the membrane strip is easy to deviate and bend can be effectively avoided, and the pressure applying component further ensures the connection stability of the welding strip group and the membrane strip. Simultaneously, a plurality of welding strips can be paved on the membrane strip at the same time, and the membrane strip paved with the welding strips is simultaneously solidified and connected for the first time to form a conductor assembly, so that the efficiency of solidification and connection is effectively improved; and then lay a plurality of battery pieces on conductor assembly simultaneously, can carry out the solidification connection of secondary to a plurality of battery pieces simultaneously, simplified the preparation process of battery cluster effectively, and then promoted the preparation efficiency of battery cluster effectively.
Referring to fig. 1 to 5, a method for manufacturing a battery string according to an embodiment of the present application includes:
laying a film strip 21 with a preset length;
m welding strips 22 are staggered and arranged on the membrane strip 21 in an array manner;
the top of the welding strip group 22 is pressed against one side of the film strip 21 by adopting the pressing assembly 14, and meanwhile, the film strip 21 and the M welding strip groups 22 are subjected to first solidification connection, and the welding strip groups 22 and the film strip 21 which are connected together form a conductor assembly;
laying N battery pieces 23 on one side of the conductor component, which is close to the welding strip, and performing secondary solidification connection on the battery pieces 23 and the conductor component to form a battery string;
wherein, when M is more than or equal to 2, N is more than or equal to 1; when M is more than or equal to 3, N is more than or equal to 2.
It should be noted that, in the present embodiment, N is greater than or equal to 2, that is, the number of battery pieces 23 included in the produced battery string is more than two, and it is understood that the length of the film strip 21 with the preset length laid can cover more than two battery pieces 23.
The term "first cure" and "second cure" are used to denote a fixed connection, and are usually heat-cured during the production of the battery string.
According to the preparation method of the battery string, M welding strip groups 22 are staggered and arranged on a film strip 21 with a preset length in an array mode, the top of the welding strip group 22 is pressed towards one side of the film strip 21 by adopting the pressing assembly 14, and meanwhile, the conductor assembly is formed through primary solidification connection; then, N battery pieces 23 are laid on one side of the conductor assembly near the solder set 22, and the battery pieces 23 and the conductor assembly are subjected to a second curing connection to form a battery string. According to the preparation method of the battery string, the welding strip group 22 and the film strip 21 are fixedly connected, and then are adhered and fixed on the battery piece 23, so that the phenomenon that the welding strip group 22 of the part which is not adhered by the film strip 21 is easy to deviate and bend can be effectively avoided, and the pressure application assembly 14 further ensures the connection stability of the welding strip group 22 and the film strip 21. Simultaneously, a plurality of welding strip groups 22 can be paved on the membrane strip 21 at the same time, and the membrane strip 21 paved with the welding strip groups 22 is simultaneously solidified and connected for the first time to form a conductor assembly, so that the efficiency of solidification and connection is effectively improved; and then lay a plurality of battery pieces 23 on conductor assembly simultaneously, can carry out the second solidification connection to a plurality of battery pieces 23 simultaneously, simplified the preparation process of battery cluster effectively, and then promoted the preparation efficiency of battery cluster effectively.
In an alternative exemplary embodiment, the first and second cure connections are provided at successive first and second stations, respectively, the conductor assembly being formed after the first cure connection is completed at the first station, the conductor assembly being transported to the second station for a second cure, while the curing of the conductor assembly of the next set is performed at the first station.
In the embodiment, the first curing connection and the second curing connection are respectively disposed at a first station and a second station, after the first curing connection is completed at the first station, a conductor assembly is formed, and the conductor assembly is transported to the second station for second curing, and at the same time, the next group of conductor assemblies is cured at the first station. By the arrangement, the preparation process of the whole battery string can be continuously carried out, a plurality of battery strings can be sequentially and synchronously prepared, and the preparation efficiency of the battery strings is further improved.
In alternative exemplary embodiments, the first cure is a conductive heat cure and the second cure is a conductive heat cure and/or an infrared heat cure.
The first curing is conducted and heated to cure the solder tape set 22 and/or the film strip 21, so that the solder tape set 22 and the film strip 21 are fixedly bonded together. The second curing may be conductive heating curing, infrared heating curing, or simultaneous conductive heating curing and infrared heating curing, so as to realize the fixed connection between the battery piece 23 and the conductor assembly.
In an alternative exemplary embodiment, the first curing is a transient heating of the weld bead set 22 as it contacts the film strip 21.
The first curing is instantaneous heating when the solder mask set 22 is in contact with the film strip 21, that is, the solder mask set 22 is heated and cured while being pressed when it is in contact with the film strip 21.
The first curing may also be a continuous heating of the solder ribbon set 22 while in contact with the film strip 21 to before the second curing. That is, the welding strip group 22 and the film strip 21 are in conduction heating within a period of time after contact, so that the stability of connection of the welding strip group 22 and the film strip 21 is further ensured, and the quality of forming a battery string is ensured.
In an alternative exemplary embodiment, the pressing assembly 14 includes a movable presser 141, the movable presser 141 pressing against the ribbon set 22, the movable presser 141 moving with the conductor assembly, the movable presser 141 being removed from the conductor assembly in the immediate vicinity of the laying of the battery piece 23, and the battery piece 23 being laid on the side of the conductor assembly adjacent to the ribbon set.
It should be noted that, in the present embodiment, the pressing assembly 14 is provided with a movable pressing tool 141, that is, when the pressing assembly 14 is used to press the welding belt set 22, the movable pressing tool 141 is pressed against the welding belt set 22, the movable pressing tool 141 moves along with the conductor assembly, and when the battery piece 23 is laid immediately, the movable pressing tool 141 is removed from the conductor assembly, and then the battery piece 23 is laid on the side of the conductor assembly close to the welding belt. So set up, the movable clamp 141 can exert pressure on the welding band group 22 for a longer period of time, and then guarantees the stability of the connection of the welding band group 22 and the membrane strip 21, and then guarantees the quality of the constituted battery string.
Specifically, during use of the movable presser 141, the movable presser 141 is removed from the conductor assembly immediately adjacent to the laying of the battery cells 23, and the removed movable presser 141 is transported to a position adjacent to the first station for subsequent recycling.
In an alternative exemplary embodiment, the pressing assembly 14 includes a fixed presser 141, the fixed presser 141 pressing against the top of the strap set 22 so that the strap set 22 lays flat on the membrane strip 21, and the fixed presser 141 is removed from the conductor assembly before the conductor assembly moves to the station where the battery cells 23 are laid.
It should be noted that, in this embodiment, the pressing assembly 14 is set as a fixed pressing tool 141, and the fixed pressing tool 141 abuts against the top of the welding strip set 22, so that the welding strip set 22 is laid on the film strip 21, and the fixed pressing tool 141 is removed from the conductor assembly before the conductor assembly moves to the station where the battery piece 23 is laid. This arrangement makes the pressing operation of the pressing assembly 14 easier, and the pressing tool 141 does not need to be removed at a later stage with respect to the movable pressing tool 141.
The application also provides a battery string preparation device 10, which is based on the battery string preparation method; the battery string preparing apparatus 10 includes a film strip driving mechanism 11, a belt conveying mechanism 12, a driving bearing table 13, a pressing assembly 14, a first curing member, a second curing member, and a sheet conveying mechanism 16; the film strip driving mechanism 11 is used for drawing the film strip 21 to the driving bearing table 13 and approaching to the position corresponding to the belt conveying mechanism 12; the tape conveying mechanism 12 is used for grabbing M welding tape groups 22 which are staggered and arranged on the film strip 21 in an array manner; the pressing assembly 14 is used for pressing the top of the welding band set 22; the first curing member is used for performing first curing connection on the film strip 21 and the M welding strip groups 22 to form a conductor assembly; the drive bearing table 13 is used for conveying the conductor assembly to a position close to the sheet conveying mechanism 16 by laying; the wafer conveying mechanism 16 lays N battery wafers 23 on one side of the conductor assembly, which is close to the welding belt; the second cured member is used to perform a second curing connection of the battery piece 23 and the conductor assembly to form a battery string.
It should be noted that, the M solder strip groups 22 may be arranged in an array on the film strip 21 in a staggered manner, in which two adjacent solder strip groups 22 are staggered by a preset distance in the length direction of the solder strip, and two adjacent solder strip groups 22 are staggered in the width direction of the solder strip.
The battery string preparation device 10 provided by the application is based on the battery string preparation method, so that the phenomenon that the welding band group 22 of the bonding part of the film strip 21 is easy to deviate and bend can be effectively avoided, and the stability of the connection between the welding band group 22 and the film strip 21 is further ensured. Meanwhile, the preparation process of the battery string is effectively simplified, and the technical effect of the preparation efficiency of the battery string is effectively improved.
In an alternative exemplary embodiment, the strap handling mechanism 12 includes a plurality of clamping hands, two oppositely disposed clamping hands are used to clamp two ends of the same welding strap set 22, the plurality of clamping hands are used to clamp two ends of the M welding strap sets 22 simultaneously, and the M welding strap sets 22 are staggered in an array arrangement;
the pressing assemblies 14 are arranged between two opposite clamping hands in a penetrating way, and each pressing assembly 14 correspondingly presses the tops of two staggered welding band groups 22.
It should be noted that, specifically, in this embodiment, the belt conveying mechanism 12 is set to include a plurality of clamping hands, two oppositely set clamping hands are used for clamping two ends of the same welding strip set 22, the plurality of clamping hands are used for simultaneously clamping two ends of the M welding strip sets 22, and the M welding strip sets 22 are staggered to form an array arrangement, so that the belt conveying mechanism 12 can simultaneously clamp the plurality of welding strip sets 22, and the M welding strip sets 22 are staggered to form an array to be laid on the film strip 21.
In an alternative exemplary embodiment, the pressing assembly 14 includes a lifting drive mechanism and a presser 141, the presser 141 being connected to a driving end of the lifting drive mechanism, the fixed end of the lifting drive mechanism being connected between two oppositely disposed entrainment hands; wherein, the presser 141 is elastically pressed against the top of the solder strip set 22.
In the present embodiment, the pressing assembly 14 is configured to include a lifting driving mechanism and a presser 141, the presser 141 is connected to the driving end of the lifting driving mechanism, and the fixed end of the lifting driving mechanism is connected between two oppositely disposed clamping hands; the pressing tool 141 is driven by the lifting driving mechanism to press the welding strip group 22 according to a preset direction, and the pressing tool 141 is elastically pressed on the top of the welding strip group 22, so that the welding strip group 22 can be effectively protected, the welding strip group 22 and the film strip 21 are effectively prevented from being damaged by the pressing tool 141, and meanwhile, the stability and the adhesion of the welding strip group 22 and the film strip 21 are further ensured by the elastic pressing by utilizing the elastic pretightening force.
The presser 141 and the lifting driving mechanism may be connected in two ways, one is fixedly connected, and the other is movably connected.
In this embodiment, the pressing tool 141 and the lifting driving mechanism may be fixedly connected, so that the pressing tool 141 elastically presses the top of the welding band set 22, and after the first curing connection is completed, the hand is entrained to release the welding band set 22, meanwhile, the pressing tool 141 moves along with the lifting driving mechanism in a direction away from the welding band set 22, that is, the pressing tool 141 presses the welding band set 22 relatively briefly, and after the pressing, the pressing tool 141 moves along with the lifting driving mechanism in a direction away from the welding band set 22, so as to press the subsequent welding band set 22.
In this embodiment, the pressing tool 141 and the lifting driving mechanism may be movably connected, one end of the lifting driving mechanism is movably used to grasp the pressing tool 141, the pressing tool 141 is used to lay the welding strip set 22 on the surface of the film strip 21 along with the clamping hand, the pressing tool 141 elastically abuts against the top of the welding strip set 22, the clamping hand releases the two ends of the welding strip set 22 and is far away from the welding strip set 22, the pressing tool 141 is separated from the lifting driving mechanism and continuously abuts against the top of the welding strip set 22, and the pressing tool 141 stays on the top surface of the welding strip set 22 along with the pressing tool 141 and moves along with the conductor component towards the direction of the second station. That is, the pressing tool 141 lays the welding band set 22 on the surface of the film strip 21 along with the clamping hand, and when the clamping hand releases the two ends of the welding band set 22 and is far away from the welding band set 22, the pressing tool 141 is separated from the lifting driving mechanism and continuously abuts against the top of the welding band set 22, and along with the stop of the pressing tool 141 on the top surface of the welding band set 22, the pressing tool 141 moves along with the direction of the conductor component towards the second station, so that the pressing tool 141 continuously abuts against the welding band set 22, and the connection stability of the welding band set 22 and the film strip 21 is ensured.
In an alternative exemplary embodiment, the battery string preparing apparatus 10 further includes a film feeding mechanism 17, the film strip 21 is wound around the film feeding mechanism 17, and the film strip driving mechanism 11 pulls one end of the film strip 21, so that the film strip 21 is released from the film feeding mechanism 17 and laid on the driving bearing table 13 under the action of an external force, or is transported to the front end of the driving bearing table 13 by a film transporting hand after being cut into film strips 21 with a fixed length.
In particular, in this embodiment, the film feeding mechanism 17 is used for providing the film strip 21, the film strip 21 is wound on the film feeding mechanism 17, and the film strip driving mechanism 11 pulls one end of the film strip 21, so that the film strip 21 is released from the film feeding mechanism 17 and laid on the driving bearing table 13 under the action of external force, or is transported to the front end of the driving bearing table 13 by a film transporting hand after being cut into the film strip 21 with a fixed length, thereby ensuring the automatic supply of the film strip 21, and facilitating the laying of the film strip 21 on the driving bearing table 13.
In an alternative exemplary embodiment, the first curing member includes a heating assembly 15, the heating assembly 15 being disposed on the pressing assembly 14 and/or the drive table 13. That is, the heating member 15 may be provided on the pressing member 14, may be provided on the drive stage 13, or may be provided on both of them.
In the present embodiment, in particular, the heating assembly 15 is provided at a position of the drive stage 13 corresponding to the belt conveying mechanism 12, that is, to facilitate relatively short heating.
It is also possible to start the arrangement of the heating element 15 at the position of the driving bearing table 13 corresponding to the belt conveying mechanism 12 and end at the second curing member, so that the heating element 15 can continuously heat the conductor element. Thereby realizing heating for a relatively long period of time and further ensuring the stability of the connection of the solder strip group 22 and the film strip 21.
In this embodiment, the second curing member is a heating unit, and the heating unit is disposed on the driving stage 13. That is, the heating unit is disposed at the second station, and thus the connection between the battery piece 23 and the conductor assembly is achieved.
And/or the second curing member is an infrared heating member, and the infrared heating member is arranged above the driving bearing table 13, so that the battery piece 23 and the conductor assembly are connected by heating one side of the battery piece 23.
In an alternative exemplary embodiment, the drive carrier 13 includes a conveyor belt for conveying the conductor assemblies from the first station to the second station at the rear end so that the first station is synchronized for the next group of conductor assemblies.
The driving bearing table comprises a conveying belt, and the conveying belt is used for conveying the conductor assembly from the first station to the second station at the rear end so that the first station can synchronously process the conductor assembly of the next group. Can be used to transport the conductor assembly from the first station to the second station at the rear end so that the first station can be synchronized for the next group of conductor assemblies. Thereby effectively improving the preparation efficiency of the battery string.
In an alternative exemplary embodiment, the drive carrier 13 may also be a movable platform for transporting the conductor assemblies placed on the movable platform from the first station to the second station at the rear end so that the first station is synchronized for the processing of the conductor assemblies of the next group. Thereby effectively improving the preparation efficiency of the battery string.
The driving bearing table 13 is provided with a plurality of adsorption holes, and the adsorption holes are used for enabling the membrane strip 21 to be adsorbed on the driving bearing table 13.
It should be noted that, specifically, in this embodiment, a plurality of adsorption holes are provided on the driving bearing table 13, and the adsorption holes are used for making the membrane strip 21 adsorb on the driving bearing table 13, so as to effectively avoid the phenomenon that the membrane strip 21 is wrinkled in the transportation process, ensure the flatness of the membrane strip 21, and simultaneously ensure the accuracy of the position where the membrane strip 21 is located, so that the welding strip group 22 can be paved at the corresponding position, and further ensure the quality of the prepared battery string.
In an alternative exemplary embodiment, the battery string preparing apparatus 10 further includes a film cutting mechanism 18, and the film cutting mechanism 18 is configured to cut the film strip 21 laid on the driving stage 13 to a preset length when the film strip driving mechanism 11 pulls the film strip 21 to the preset length.
In an alternative exemplary embodiment, the battery string preparing apparatus 10 further includes a tape supplying mechanism 19 and a tape cutting mechanism 191, the tape supplying mechanism 19 for supplying the welding set 22, and the tape cutting mechanism 191 for cutting the welding set 22 according to a preset length.
In order to further clearly understand the battery string preparing apparatus 10 provided by the present application, the principle of its use will now be described as follows:
in this embodiment, the film strip driving mechanism 11 pulls the end of the film strip 21 to the first station at the front end of the driving bearing table 13, the film cutting mechanism 18 cuts the film strip 21 into one or more sections, and one section of film strip 21 covers at least three groups of staggered welding sections and can cover at least two battery pieces 23; the film cutting mechanism 18 cuts the tail part of the film strip 21, the film strip 21 is adsorbed and fixed on the surface of the driving bearing table 13, and the tape conveying mechanism 12 conveys the welding tape set 22 to the upper part of the film strip 21 at the first processing station and is attached to the upper surface of the film strip 21; while the welding strip group 22 is in contact with the film strip 21, the pressure of the pressure applying component 14 is pressed against the top of the welding strip group 22, and the welding strip group 22 or the film strip 21 is heated, so that the welding strip group 22 and the film strip 21 are adhered and fixedly connected, wherein the welding strip group 22 conveyed by the belt conveying mechanism 12 is at least three groups of welding strip groups 22 which are staggered along the length direction of the welding strip group 22; and then the welded band group 22 and the film strip 21 which are bonded on the first station are transmitted to a second station at the rear end through the driving bearing table 13, at least two battery pieces 23 are correspondingly placed above the welded band group 22 of the second station at a time, at least two groups of staggered welded band groups 22 are connected on each battery piece 23, the positive and negative poles of the adjacent two battery pieces 23 are connected in series, and the film strip 21 or the battery pieces 23 are heated while the battery pieces 23 are contacted with the welded band group 22 and the film strip 21, so that the film strip 21 and the bottom surface of the battery piece 23 are bonded and fixed, the welded band group 22 is bonded and positioned between the battery pieces 23 and the film strip 21, and the welded band group 22 is bonded and connected in series between the at least two battery pieces 23 through the film strip 21, so as to form a battery string.
It should be further noted that the heating element 15 disposed on the driving carrier 13 may be turned on in advance, so that the film strip 21 is preheated to be in a bonding state, and the bonding tape group 22 may be bonded as soon as it is placed on the film strip 21. Thereby improving the connection efficiency of the solder strip group 22 and the film strip 21.
In the present embodiment, the film deposition strip 21 and the deposition welding strip set 22 may be continuously performed as described above, or may be intermittently performed.
That is, in this embodiment, the film strip 21 is pulled to the front end of the driving carrying table 13, the heating element is provided on the driving carrying table 13, each time the welding set 22 is placed, a movable presser 141 is placed on the welding set 22, each time the film strip 21 moves forward by a position of the movable presser 141, and each time the tape conveying mechanism 12 pulls a set of welding tapes thereafter. Such processing is performed group by group.
Specifically, referring to fig. 6, the welding band group 22 at the head end of the film strip 21 is clamped by the band transporting mechanism 12 to form a first welding band group 22 and a second welding band group 22 with staggered ends, a pressing tool 141 is placed at one side of the front end of the band transporting mechanism 12, the pressing tool 141 releases the band transporting mechanism 12 after being placed, the carrying table 13 is driven to convey one station of the pressing tool 141 backward, then the band transporting mechanism 12 is placed at the tail end of the first welding band group 22 at equal interval when the end of the third welding band group 22 is pulled, so that the first half section of the third welding band group 22 and the second half section of the second welding band group 22 are staggered at intervals, then, a second pressing tool 141 is placed on the first half section of the third group welding strip 22 and the second half section of the second group welding strip 22, taking the rule that five group welding strip groups 22 are paved as an example, when a fourth group welding strip group 22 is continuously paved, the pressing tool 141 placed for the first time can be moved away from the top of the group welding strip group 22, the bearing table 13 is driven to continuously move forward by a station of the pressing tool 141, the belt conveying mechanism 12 continuously pulls the fifth group welding strip group 22, and the battery piece 23 is placed on the welding strip group 22 and the film strip 21 after being moved away from the pressing tool 141, so that the battery piece 23 is continuously conveyed backwards, the pressing tool 141 on the group welding strip group 22 is continuously moved away, and the battery piece 23 is continuously placed, so that the paving series connection of the battery strings is completed.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and are not limiting; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced with equivalents; such modifications and substitutions do not depart from the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.
In addition, the specific features described in the above embodiments may be combined in any suitable manner without contradiction. The various possible combinations of the application are not described in detail in order to avoid unnecessary repetition.
Claims (12)
1. A method of manufacturing a battery string, comprising:
paving a film strip with a preset length;
m welding strip groups are staggered to form an array on the membrane strip;
pressing the top of the welding strip group towards one side of the film strip by adopting a pressing assembly, and simultaneously, carrying out first solidification connection on the film strip and the M welding strip groups, wherein the welding strip groups and the film strip which are connected together form a conductor assembly;
paving N battery pieces on one side of the conductor component, which is close to the welding strip group, and performing secondary solidification connection on the battery pieces and the conductor component to form a battery string;
wherein, when M is more than or equal to 2, N is more than or equal to 1; when M is more than or equal to 3, N is more than or equal to 2.
2. The method of manufacturing a battery string according to claim 1, wherein the first and second curing connections are provided at successive first and second stations, respectively, and after the first curing connection is completed at the first station, the conductor assembly is formed, and the conductor assembly is transported to the second station for the second curing, and simultaneously, the curing of the conductor assembly of the next group is performed at the first station.
3. The method of manufacturing a battery string according to claim 1, wherein the first curing is a conductive heat curing, and the second curing is a conductive heat curing and/or an infrared heat curing;
the first curing is instantaneous heating when the welding strip group is contacted with the film strip, or the first curing is continuous heating from when the welding strip group is contacted with the film strip to before the second curing.
4. The method of claim 1, wherein the pressing assembly comprises a movable pressing tool, the movable pressing tool is pressed against the welding strip set, the movable pressing tool moves along with the conductor assembly, the movable pressing tool is removed from the conductor assembly when the battery piece is laid next to the movable pressing tool, and the battery piece is laid on one side of the conductor assembly close to the welding strip set.
5. The method of claim 1, wherein the pressing assembly comprises a fixed presser that presses against the top of the strap set such that the strap set is laid flat on the membrane strip, and wherein the fixed presser is removed from the conductor assembly before the conductor assembly is moved to the station where the battery cells are laid.
6. A battery string production apparatus characterized by being based on the battery string production method according to any one of claims 1 to 5; the battery string preparation equipment comprises a film strip driving mechanism, a belt conveying mechanism, a driving bearing table, a pressing assembly, a first curing part, a second curing part and a sheet conveying mechanism;
the film strip driving mechanism is used for pulling the film strip to the driving bearing table and is close to the position corresponding to the belt conveying mechanism;
the tape conveying mechanism is used for grabbing M welding tape groups which are staggered and arranged on the film strip in an array manner;
the pressing component is used for pressing the top of the welding band group;
the first curing piece is used for carrying out first curing connection on the film strip and the M welding strip groups to form the conductor assembly;
the driving bearing table is used for conveying the conductor assembly to a position close to the sheet conveying mechanism by laying;
the wafer conveying mechanism lays N battery wafers on one side of the conductor assembly, which is close to the welding belt group;
the second curing member is used for performing second curing connection on the battery piece and the conductor assembly to form a battery string.
7. The battery string preparation apparatus of claim 6, wherein the strap handling mechanism comprises a plurality of strap handling hands, two oppositely disposed strap handling hands are used for clamping two ends of a same welding strap set, the plurality of strap handling hands are used for simultaneously clamping two ends of M welding strap sets, and the M welding strap sets are staggered in an array arrangement;
the pressing assemblies are arranged between two oppositely arranged clamping hands in a penetrating mode, and each pressing assembly correspondingly presses the tops of two welding band groups which are arranged in a staggered mode.
8. The battery string preparation apparatus of claim 7, wherein the pressing assembly comprises a lifting drive mechanism and a presser, the presser being connected to a driving end of the lifting drive mechanism, a fixed end of the lifting drive mechanism being connected between two oppositely disposed clamping hands; wherein the pressing tool elastically presses the top of the welding band group;
the pressing tool is fixedly connected with the lifting driving mechanism, so that the pressing tool elastically presses the top of the welding strip group, the clamping hand releases the welding strip group after the first curing connection is completed, and meanwhile, the pressing tool moves along with the lifting driving mechanism in a direction away from the welding strip group; or alternatively, the first and second heat exchangers may be,
the pressing tool is movably connected with the lifting driving mechanism, one end of the lifting driving mechanism is movably used for grabbing the pressing tool, the pressing tool is used for paving the welding strip group on the surface of the film strip along with the clamping hand, the pressing tool elastically abuts against the top of the welding strip group, the clamping hand releases two ends of the welding strip group and is far away from the welding strip group, the pressing tool is separated from the lifting driving mechanism and continuously abuts against the top of the welding strip group, and the pressing tool stays on the top surface of the welding strip group along with the pressing tool and moves along with the direction of the conductor component towards the second station.
9. The battery string preparation apparatus of claim 6 wherein the drive carriage includes a conveyor belt for conveying the conductor assemblies from the first station to the second station at the rear end to synchronize the first station for processing of the next set of conductor assemblies.
10. The apparatus according to claim 6, further comprising a film feeding mechanism, wherein the film strip is wound around the film feeding mechanism, and wherein the film strip driving mechanism pulls one end of the film strip, so that the film strip is released from the film feeding mechanism and laid on the driving carrying table under the action of an external force, or is carried to the front end of the driving carrying table by a film carrying hand after being cut into a film strip with a fixed length.
11. The battery string preparation apparatus of claim 6, wherein the first curing member comprises a heating assembly disposed on the pressing assembly and/or the drive carriage; the heating component is arranged at the position corresponding to the driving bearing table and the belt conveying mechanism, or is arranged at the position corresponding to the driving bearing table and the belt conveying mechanism and is terminated at the second curing part, so that the heating component is used for continuously heating the conductor component;
the second curing part is a heating unit which is arranged on the driving bearing table; and/or the second solidification piece is an infrared heating piece, and the infrared heating piece is arranged above the driving bearing table.
12. The battery string production apparatus according to claim 6, wherein a plurality of adsorption holes for allowing the membrane strip to be adsorbed on the drive stage are provided on the drive stage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311063762.1A CN116885027A (en) | 2023-08-22 | 2023-08-22 | Battery string preparation method and battery string preparation equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311063762.1A CN116885027A (en) | 2023-08-22 | 2023-08-22 | Battery string preparation method and battery string preparation equipment |
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| CN116885027A true CN116885027A (en) | 2023-10-13 |
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| CN202311063762.1A Pending CN116885027A (en) | 2023-08-22 | 2023-08-22 | Battery string preparation method and battery string preparation equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117133835A (en) * | 2023-10-26 | 2023-11-28 | 苏州小牛自动化设备有限公司 | Production equipment for BC battery lamination strings |
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- 2023-08-22 CN CN202311063762.1A patent/CN116885027A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117133835A (en) * | 2023-10-26 | 2023-11-28 | 苏州小牛自动化设备有限公司 | Production equipment for BC battery lamination strings |
| CN117133835B (en) * | 2023-10-26 | 2024-03-01 | 苏州小牛自动化设备有限公司 | Production equipment for BC battery lamination strings |
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