Equipment for assembling electrode

Abstract

The present invention provides equipment for assembling an electrode, the equipment being capable of simultaneously producing two types of unit battery cells. The equipment for assembling an electrode includes a pair of assembly parts, and at least one of the pair of assembly parts may be configured to selectively manufacture a mono cell or a half cell. Equipment for assembling an electrode, according to the present invention, comprises: a central separator roll that unwinds and continuously supplies a central separator having a width 2W; a cutout part that continuously cuts the central separator to divide the central separator into an upper central separator and a lower central separator, each having a width W; an upper assembly part that receives and combines the upper central separator and an upper electrode; and a lower assembly part that receives and combines the lower central separator and a lower electrode.

Description

Electrode assembly equipment

[0001] This application claims the benefit of priority from Republic of Korea Patent Application No. 10-2024-0097988, filed July 24, 2024, the entire contents of which are incorporated herein by reference.

[0002] The present invention relates to an electrode assembly facility for manufacturing an electrode assembly by assembling an electrode and a separator, and an electrode assembly process using the same.

[0003] Secondary batteries, which have high applicability according to product group and electrical characteristics such as high energy density, are widely used not only in portable devices but also in electric vehicles (EVs) or hybrid electric vehicles (HEVs) driven by electrical power sources.

[0004] These secondary batteries are attracting attention as a new energy source for environmental friendliness and energy efficiency because they not only have the primary advantage of drastically reducing the use of fossil fuels, but also have the advantage of producing no byproducts from energy use.

[0005] Currently, the types of secondary batteries widely used include lithium-ion batteries, lithium polymer batteries, nickel-cadmium batteries, nickel-metal hydride batteries, and nickel-zinc batteries. The operating voltage of these unit secondary battery cells, i.e., unit battery cells, is approximately 2.5 V to 4.5 V. Therefore, when a higher output voltage is required, multiple battery cells are connected in series to form a battery pack. Furthermore, depending on the charge / discharge capacity required for the battery pack, a number of battery cells are connected in parallel to form a battery pack. Therefore, the number of battery cells included in the battery pack and the electrical connection type can be set in various ways depending on the required output voltage and / or charge / discharge capacity.

[0006] Meanwhile, known types of unit secondary battery cells include cylindrical, prismatic, and pouch-shaped battery cells. Among these, pouch-shaped battery cells have a structure in which a stacked electrode assembly, in which electrodes and separators are laminated in multiple layers, is embedded in a metal pouch.

[0007] Figure 1 illustrates the structure of an electrode assembly. Referring to this, the electrode assembly (F) is configured by stacking an anode (21) and a cathode (22) together with a separator (1). Specifically, the anode (21) and the cathode (22) are alternately and repeatedly stacked, and a separator (1) is interposed between each anode (21) and cathode (22).

[0008] Fig. 2 illustrates a mono-cell and a half-cell constituting the electrode assembly of Fig. 1. Referring to this, in order to manufacture the electrode assembly (F) of Fig. 1, a plurality of unit cells in which a positive electrode (21) and / or a negative electrode (22) are pre-laminated together with a separator (1) can be assembled again. Representatively, as in Fig. 2, a plurality of mono-cells (M) in which a positive electrode (21), a separator (1), a negative electrode (22), and a separator (1) are sequentially laminated, and one half-cell (H) in which a negative electrode (22) is interposed between a pair of separators (1) can be assembled together to manufacture a full cell (F).

[0009] Meanwhile, since multiple monocells (M) and one half-cell (H) are required to manufacture one full cell (F), the quantity of half-cells (H) required is significantly smaller than the quantity of monocells (M). To meet this demand, the equipment manufacturing half-cells (H) must be frequently shut down to wait for a sufficient number of monocells (M) to be manufactured, or must operate at a much slower rate than the possible manufacturing speed. This causes production inefficiencies and leads to unnecessary use of space.

[0010] The present invention was created against the background of the above-described prior art, and its purpose is to provide an electrode assembly facility capable of adjusting the manufacturing quantity ratio of monocells and half-cells to demand without any downtime or unnecessary reduction in manufacturing speed.

[0011] Specifically, the present invention seeks to provide an electrode assembly facility that can operate at maximum speed while maintaining the quantity ratio of monocells and half cells required for manufacturing a full cell.

[0012] Another object of the present invention is to provide an electrode assembly process for manufacturing an electrode assembly by operating the above-described electrode assembly equipment.

[0013] The technical objectives of the present invention are not limited to the purposes mentioned above. Other objectives and advantages of the present invention not mentioned above can be understood through the following description and will be more clearly understood through the embodiments of the present invention. Furthermore, it will be readily apparent that the objectives and advantages of the present invention can be realized by the means and combinations thereof set forth in the claims.

[0014] In order to solve the above problem, the present invention provides an electrode assembly device including: a central separator roll that continuously supplies a central separator having a width of 2W while unwinding the central separator; a cutting unit that continuously cuts the central separator and divides it into an upper central separator and an upper central separator, each having a width of W; an upper assembly unit that receives and mates the upper central separator and the upper electrode; and a lower assembly unit that receives and mates the lower central separator and the lower electrode.

[0015] According to the present invention, two unit cells can be produced simultaneously using the central separator supplied from one roll.

[0016] The upper electrode may include an upper first electrode and an upper second electrode having a different polarity from the upper first electrode. At this time, the electrode assembly equipment may further include: an upper first electrode roll that unwinds the upper first electrode and continuously supplies it to the upper assembly unit; an upper separator roll that unwinds the upper separator having a width of W and continuously supplies it to the upper assembly unit; and an upper second electrode roll that unwinds the upper second electrode and continuously supplies it to the upper assembly unit.

[0017] The lower electrode may include a lower first electrode and a lower second electrode having a different polarity from the lower first electrode. At this time, the electrode assembly equipment may further include: a lower first electrode roll for unwinding the lower first electrode and continuously supplying it to the lower assembly portion; a lower separator roll for unwinding a lower separator having a width of W and continuously supplying it to the lower assembly portion; and a lower second electrode roll for unwinding the lower second electrode and continuously supplying it to the lower assembly portion.

[0018] In one embodiment, the upper assembly may be configured to manufacture a monocell.

[0019] Specifically, the upper assembly can manufacture a monocell by sequentially stacking the upper first electrode, the upper separator, the upper second electrode, and the upper central separator from the top layer.

[0020] According to the above embodiment, the lower assembly may be configured to selectively manufacture either a monocell or a half-cell.

[0021] Specifically, the lower assembly can manufacture a half-cell by sequentially stacking the lower central separator, the lower second electrode, and the lower separator from the top layer.

[0022] In addition, the lower assembly part can manufacture a monocell by sequentially stacking the lower central separator, the lower second electrode, the lower separator, and the lower first electrode from the top layer.

[0023] At this time, the electrode assembly equipment may additionally include an adhesive film roll that continuously supplies the adhesive film while unwinding the adhesive film.

[0024] Unlike separators, electrodes are formed from thin metal foils and can tear if subjected to excessive tension. Therefore, while providing adequate tension to separators can prevent sagging during operation, electrodes require a support structure to support them from below.

[0025] Accordingly, the adhesive film may be attached to the lower surface of the lower first electrode before the lower central separator, the lower second electrode, the lower separator, and the lower first electrode are joined, and then detached from the lower surface of the lower first electrode after the lower central separator, the lower second electrode, the lower separator, and the lower first electrode are joined. As the adhesive film supports the lower first electrode, the lower first electrode, which is laminated on the lowest layer and is not supported by the separator, may not sag due to gravity.

[0026] According to another embodiment, the upper assembly may be configured to selectively manufacture either a monocell or a half-cell.

[0027] Specifically, the upper assembly part can manufacture a half-cell by sequentially stacking the upper separator, the upper second electrode, and the upper central separator from the top layer.

[0028] In addition, the upper assembly part can manufacture a monocell by sequentially stacking the upper separator, the upper second electrode, the upper central separator, and the upper first electrode from the top layer.

[0029] At this time, the electrode assembly equipment may additionally include an adhesive film roll that continuously supplies the adhesive film while unwinding the adhesive film.

[0030] Unlike separators, electrodes are formed from thin metal foils and can tear if subjected to excessive tension. Therefore, while providing adequate tension to separators can prevent sagging during operation, electrodes require a support structure to support them from below.

[0031] Accordingly, the adhesive film may be attached to the lower surface of the upper first electrode before the upper separator, the upper second electrode, the upper central separator, and the upper first electrode are joined, and then detached from the lower surface of the upper first electrode after the upper separator, the upper second electrode, the upper central separator, and the upper first electrode are joined.

[0032] According to the above other embodiments, the upper assembly can be configured to manufacture a monocell.

[0033] Specifically, the lower assembly can manufacture a monocell by sequentially stacking the lower first electrode, the lower central separator, the lower second electrode, and the lower separator from the top layer.

[0034] The present invention also provides an electrode assembly process using the electrode assembly equipment.

[0035] In the electrode assembly equipment according to one embodiment, the upper assembly part and the lower assembly part manufacture a mono-cell in which a first electrode, a separator, a second electrode, and a separator are sequentially laminated, and a half-cell in which a second electrode is laminated between a pair of separators, and at least one of the upper assembly part and the lower assembly part is configured to be capable of manufacturing the mono-cell, and at least one of them can be configured to be capable of selectively manufacturing either the mono-cell or the half-cell.

[0036] At this time, the electrode assembly process according to the present invention alternately repeats: a first step in which both the upper assembly part and the lower assembly part manufacture the monocell; and a second step in which one of the upper assembly part and the lower assembly part manufactures the monocell and the other manufactures the half-cell.

[0037] Since the production of the above full cell requires a much smaller quantity of the half cell than the mono cell, in this way, both the upper assembly and the lower assembly can be operated without a break, while maintaining the production quantity ratio of the half cell and the mono cell.

[0038] According to one embodiment, the electrode assembly process may further include a third step of manufacturing a full cell by joining a plurality of the monocells and one half-cell.

[0039] The first step and the second step are repeated at a predetermined cycle, and in the predetermined cycle, the ratio of the manufactured quantities of the monocell and the half-cell can be determined based on the ratio of the monocell and the half-cell constituting the full cell. For example, in one embodiment, the full cell can include 2n+1 monocells and 1 half-cell, and accordingly, the electrode assembly process can be repeatedly performed in a manner in which the second step is performed once every time the first step is performed n times.

[0040] The present invention provides an electrode assembly facility capable of adjusting the production quantity ratio of monocells and halfcells to meet demand without any downtime or unnecessary reduction in production speed, by having an assembly unit configured to selectively produce either monocells or halfcells.

[0041] Specifically, the present invention seeks to provide an electrode assembly facility capable of operating at maximum speed while producing a predetermined quantity ratio of mono-cells and half-cells at predetermined cycles based on the quantity ratio of mono-cells and half-cells required for manufacturing a full cell.

[0042] The present invention can also provide an electrode assembly process for manufacturing an electrode assembly by operating the above-described electrode assembly equipment.

[0043] In addition, the present invention may have various other effects, which will be described in each embodiment, or the description of effects that can be easily inferred by a person skilled in the art will be omitted.

[0044] Figure 1 shows the structure of an electrode assembly.

[0045] Figure 2 shows a monocell and a half-cell constituting the electrode assembly of Figure 1.

[0046] Figure 3 illustrates an electrode assembly facility according to one embodiment.

[0047] Figure 4 shows the central separator of Figure 3 being cut by a cutting portion.

[0048] Fig. 5 shows an electrode assembly facility according to another embodiment.

[0049] Figure 6 illustrates an electrode assembly process according to one embodiment.

[0050] Figures 7 to 9 illustrate steps 1 to 3 according to one embodiment, respectively.

[0051] Figure 10 shows a fully assembled full cell.

[0052] [Explanation of symbols]

[0053] 1: Separator 10: Central separator 100: Central separator roll 101: Upper central separator 102: Lower central separator 11: Upper separator 110: Upper separator roll 12: Lower separator 120: Lower separator roll 21: First electrode (anode) 211: Upper first electrode 2110: Upper first electrode roll 212: Lower first electrode 2120: Lower first electrode roll 22: Second electrode (cathode) 221: Upper second electrode 2210: Upper second electrode roll 222: Lower second electrode 2220: Lower second electrode roll 3: Adhesive film 30: Adhesive film roll 31: Recovery roll 4: Cut-off portion 51: Upper assembly portion 52: Lower assembly M: Monocell H: Halfcell F: Fullcell (electrode assembly)

[0054] The above-described objects, features, and advantages will be described in detail below with reference to the accompanying drawings, so that those skilled in the art can easily practice the technical idea of ​​the present invention. In describing the present invention, if it is determined that a detailed description of known technologies related to the present invention may unnecessarily obscure the gist of the present invention, a detailed description thereof will be omitted. Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the drawings, the same reference numerals are used to indicate the same or similar components.

[0055] Although the terms "first" and "second" are used to describe various components, these components are not limited by these terms. These terms are used solely to distinguish one component from another, and unless otherwise specified, a "first" component may also be a "second" component.

[0056] Throughout the specification, unless otherwise specifically stated, each element may be singular or plural.

[0057] Hereinafter, the phrase "any configuration is placed on (or below)" a component or "on (or below)" a component may mean that any configuration is placed in contact with the upper surface (or lower surface) of said component, and that other configurations may be interposed between said component and any configuration placed on (or below) said component.

[0058] Additionally, when it is described that a component is "connected," "coupled," or "connected" to another component, it should be understood that the components may be directly connected or connected to one another, but that other components may also be "interposed" between the components, or that each component may be "connected," "coupled," or "connected" through another component.

[0059] As used herein, singular expressions include plural expressions unless the context clearly dictates otherwise. In this application, terms such as "consisting of" or "comprising" should not necessarily be construed to include all of the components or steps described in the specification, and should be construed to mean that some of the components or steps may not be included, or that additional components or steps may be included.

[0060] Throughout the specification, when we refer to "A and / or B", this means A, B, or A and B, unless otherwise stated, and when we refer to "C to D", this means C or more and D or less, unless otherwise stated.

[0061] Hereinafter, a preferred embodiment of the present invention will be described with reference to the attached drawings.

[0062] Figure 3 illustrates an electrode assembly facility according to one embodiment. Referring to this, the electrode assembly facility according to one embodiment includes a central separator roll (100) and a central separator (10) that is unwound from the central separator roll (100) and continuously supplied.

[0063] The central partition (10) is divided in the width direction by passing through the cut portion (4). Specifically, the central partition (10) is divided into an upper central partition (101) and a lower central partition (102) by cutting the central partition (10) with the cut portion (4) as the standard.

[0064] Fig. 4 shows the central partition of Fig. 3 being cut by a cutting portion. Referring to this, the central partition (10) originally has a width of 2W, and is divided into the upper central partition (101) and the lower central partition (102), each having a width of W, passing through the cutting portion (4).

[0065] According to this embodiment, the separator can be supplied to two assembly sections at the same speed from a single central separator roll (100). Accordingly, two assembly processes can be controlled and operated simultaneously at the same speed without either process slowing down or speeding up.

[0066] Referring again to FIG. 3, the upper central separator (101) is joined with the upper electrode in the upper assembly part (51) to form one or more types of unit cells, and the lower central separator (102) is joined with the lower electrode in the lower assembly part (52) to form one or more types of unit cells. That is, in the electrode assembly equipment according to the present embodiment, at least two types of unit cells are produced simultaneously and continuously.

[0067] The upper electrode may include an upper first electrode (211) and an upper second electrode (221) having a different polarity from the upper first electrode (211). At this time, the electrode assembly equipment may further include: an upper first electrode roll (2110) that unwinds the upper first electrode (211) and continuously supplies it to the upper assembly unit (51); an upper separator roll (110) that unwinds the upper separator (11) having a width of W and continuously supplies it to the upper assembly unit (51); and an upper second electrode roll (2210) that unwinds the upper second electrode (221) and continuously supplies it to the upper assembly unit (51).

[0068] The lower electrode may include a lower first electrode (212) and a lower second electrode (222) having a different polarity from the lower first electrode (212). At this time, the electrode assembly equipment may further include: a lower first electrode roll (2120) that unwinds the lower first electrode (212) and continuously supplies it to the lower assembly unit (52); a lower separator roll (120) that unwinds the lower separator (12) having a width of W and continuously supplies it to the lower assembly unit (52); and a lower second electrode roll (2220) that unwinds the lower second electrode (222) and continuously supplies it to the lower assembly unit (52).

[0069] According to one embodiment, the upper assembly (51) can be configured to manufacture a monocell (M).

[0070] Specifically, the upper assembly (51) can manufacture a monocell (M) by sequentially stacking the upper first electrode (211), the upper separator (11), the upper second electrode (221), and the upper central separator (101) from the top layer.

[0071] According to the above embodiment, the lower assembly (52) can be configured to selectively manufacture either a monocell (M) or a half-cell (H).

[0072] Specifically, the lower assembly (52) can manufacture a half-cell (H) by sequentially stacking the lower central separator (102), the lower second electrode (222), and the lower separator (12) from the top layer.

[0073] In addition, the lower assembly part (52) can manufacture a monocell (M) by sequentially stacking the lower central separator (102), the lower second electrode (222), the lower separator (12), and the lower first electrode (212) from the top layer.

[0074] At this time, the electrode assembly equipment may additionally include an adhesive film roll (30) that continuously supplies and unwinds the adhesive film (3).

[0075] Unlike separators, electrodes are formed from thin metal foils and can tear if subjected to excessive tension. Therefore, while providing adequate tension to separators can prevent sagging during operation, electrodes require a support structure to support them from below.

[0076] Accordingly, the adhesive film (3) can be attached to the lower surface of the lower first electrode (212) before the lower central separator (102), the lower second electrode (222), the lower separator (12), and the lower first electrode (212) are joined, and then detached from the lower surface of the lower first electrode (212) after the lower central separator (102), the lower second electrode (222), the lower separator (12), and the lower first electrode (212) are joined. As the adhesive film (3) supports the lower first electrode (212), the lower first electrode (212) that is laminated on the lowest layer and is not supported by the separator (1) can prevent sagging due to gravity.

[0077] The above adhesive film (3) can be removed from the lower first electrode (212) by passing through the lower assembly part (52), and then re-wound on the recovery roll (31) and recovered.

[0078] Fig. 5 illustrates an electrode assembly facility according to another embodiment. Referring to this, unlike the above-described embodiment, the upper assembly part (51) according to another embodiment can be configured to selectively manufacture either a monocell (M) or a half-cell (H).

[0079] Specifically, the upper assembly part (51) can manufacture a half-cell (H) by sequentially stacking the upper separator (11), the upper second electrode (221), and the upper central separator (101) from the top layer.

[0080] In addition, the upper assembly part (51) can manufacture a monocell (M) by sequentially stacking the upper separator (11), the upper second electrode (221), the upper central separator (101), and the upper first electrode (211) from the top layer.

[0081] At this time, the electrode assembly equipment may additionally include an adhesive film roll (30) that continuously supplies and unwinds the adhesive film (3).

[0082] Unlike separators, electrodes are formed from thin metal foils and can tear if subjected to excessive tension. Therefore, while providing adequate tension to separators can prevent sagging during operation, electrodes require a support structure to support them from below.

[0083] Accordingly, the adhesive film (3) may be attached to the lower surface of the upper first electrode (211) before the upper separator (11), the upper second electrode (221), the upper central separator (101), and the upper first electrode (211) are joined, and then detached from the lower surface of the upper first electrode (211) after the upper separator (11), the upper second electrode (221), the upper central separator (101), and the upper first electrode (211) are joined.

[0084] The above adhesive film (3) can be removed from the upper first electrode (212) by passing through the upper assembly part (51), and then re-wound on the recovery roll (31) and recovered.

[0085] According to the above embodiment, the upper assembly (51) can be configured to manufacture a monocell (M).

[0086] Specifically, the lower assembly (52) can manufacture a monocell (M) by sequentially stacking the lower first electrode (212), the lower central separator (102), the lower second electrode (222), and the lower separator (12) from the top layer.

[0087] In short, in the electrode assembly equipment, the upper assembly part (51) and the lower assembly part (52) are configured to manufacture a mono-cell (M) in which a first electrode (21), a separator (1), a second electrode (22), and a separator (1) are sequentially laminated, and a half-cell (H) in which a second electrode (22) is laminated between a pair of separators (1), and at least one of the upper assembly part (51) and the lower assembly part (52) is configured to be capable of manufacturing the mono-cell (M), and at least one of them can be configured to be capable of selectively manufacturing either the mono-cell (M) or the half-cell (H).

[0088] That is, in both the above-described embodiment and the above-described other embodiment of the present invention, the electrode assembly equipment can be operated to meet the demand for each of the monocells and the half-cells without slowing down the overall manufacturing speed or the operating speed of the equipment, since at least one side manufactures the monocells and at least the other side selectively manufactures either the monocells or the half-cells.

[0089] Fig. 6 illustrates an electrode assembly process according to one embodiment, and Figs. 7 to 9 illustrate first to third steps according to one embodiment, respectively. Referring to these drawings, the electrode assembly process according to one embodiment includes: a first step (S1) in which both the upper assembly part (51) and the lower assembly part (52) manufacture the monocell (M); and a second step (S2) in which one of the upper assembly part (51) and the lower assembly part (52) manufactures the monocell (M) and the other manufactures the half-cell (H); which are alternately repeated.

[0090] Since the production of the above full cell (F) requires a much smaller quantity of the half cell (H) than the mono cell (M), in this way, both the upper assembly (51) and the lower assembly (52) can be operated without a break, while maintaining the production quantity ratio of the half cell (H) and the mono cell (M).

[0091] Referring again to FIG. 9, the electrode assembly process according to one embodiment may additionally include a third step (S3) of manufacturing a full cell (F) by joining a plurality of the monocells (M) and one half-cell (H).

[0092] Fig. 10 shows a fully assembled full cell. Referring to Fig. 9, a full cell (F) according to one embodiment of the present invention may be configured by combining n monocells (M) and one half-cell (H), and may have a structure in which first electrodes (21) and second electrodes (22) are alternately and repeatedly laminated between each layer of a plurality of laminated separators (1).

[0093] At this time, referring to FIG. 6 together, the first step (S1) and the second step (S2) are repeated at a predetermined cycle, and in the predetermined cycle, the ratio of the manufacturing quantities of the monocell (M) and the half-cell (H) can be determined based on the ratio of the monocell (M) and the half-cell (H) constituting the full cell (F). For example, in one embodiment, the full cell (F) can include 2n+1 monocells (M) and 1 half-cell (H), and accordingly, the electrode assembly process can be repeatedly performed in a manner in which the second step (S2) is performed once every time the first step (S1) is performed n times.

[0094] It should be understood that the above-described embodiments are illustrative in all respects and not restrictive, and the scope of the present invention will be determined by the claims that follow, rather than by the detailed description set forth above. Furthermore, the meaning and scope of the claims that follow, as well as all possible modifications and variations derived from their equivalent concepts, should be construed as encompassing the scope of the present invention.

[0095] Although the present invention has been described with reference to the drawings exemplified above, it is to be understood that the present invention is not limited to the embodiments and drawings disclosed herein, and that various modifications may be made by those skilled in the art within the scope of the technical idea of ​​the present invention. Furthermore, even if the operational effects according to the configuration of the present invention have not been explicitly described while describing the embodiments of the present invention, it is natural that the effects predictable by the corresponding configuration should also be acknowledged.

Claims

A central separator roll that continuously supplies and unwinds a central separator having a width of 1.2W; A cutting portion that continuously cuts the central divider to divide it into an upper central divider and an upper central divider, each having a width of W; An upper assembly that receives and aligns the upper central separator and the upper electrode; and An electrode assembly facility, comprising a lower assembly part that receives and aligns the lower central separator and the lower electrode.

2. In claim 1, the upper electrode includes an upper first electrode and an upper second electrode having a polarity different from that of the upper first electrode, The above electrode assembly equipment: An upper first electrode roll that continuously supplies the upper first electrode to the upper assembly by unwinding the upper first electrode; An upper separator roll that unwinds an upper separator having a width of W and continuously supplies it to the upper assembly; and An electrode assembly facility further comprising an upper second electrode roll that unwinds the upper second electrode and continuously supplies it to the upper assembly part.

3. In claim 2, the upper assembly part is an electrode assembly facility that manufactures a monocell by sequentially stacking the upper first electrode, the upper separator, the upper second electrode, and the upper central separator from the top layer.

4. In claim 2, the upper assembly part is an electrode assembly facility that manufactures a half-cell by sequentially stacking the upper separator, the upper second electrode, and the upper central separator from the top layer.

5. In claim 4, the upper assembly part is an electrode assembly facility that manufactures a monocell by sequentially stacking the upper separator, the upper second electrode, the upper central separator, and the upper first electrode from the top layer.

6. In claim 5, an adhesive film roll is additionally included for continuously supplying the adhesive film while unwinding it, An electrode assembly device in which the adhesive film is attached to the lower surface of the upper first electrode before the upper separator, the upper second electrode, the upper central separator, and the upper first electrode are joined, and is detached from the lower surface of the upper first electrode after the upper separator, the upper second electrode, the upper central separator, and the upper first electrode are joined.

7. In claim 1, the lower electrode includes a lower first electrode and a lower second electrode having a polarity different from that of the lower first electrode, The above electrode assembly equipment: A lower first electrode roll that continuously supplies the lower first electrode to the lower assembly by unwinding the lower first electrode; A lower separation membrane roll that unwinds a lower separation membrane having a width of W and continuously supplies it to the lower assembly; and An electrode assembly facility further comprising a lower second electrode roll that unwinds the lower second electrode and continuously supplies it to the lower assembly part.

8. In claim 7, the lower assembly part is an electrode assembly facility that manufactures a half-cell by sequentially stacking the lower central separator, the lower second electrode, and the lower separator from the uppermost layer.

9. In claim 8, the lower assembly part is an electrode assembly facility that manufactures a monocell by sequentially stacking the lower central separator, the lower second electrode, the lower separator, and the lower first electrode from the top layer.

10. In claim 9, an adhesive film roll is additionally included for continuously supplying the adhesive film while unwinding it, An electrode assembly device in which the adhesive film is attached to the lower surface of the lower first electrode before the lower central separator, the lower second electrode, the lower separator, and the lower first electrode are joined, and is detached from the lower surface of the lower first electrode after the lower central separator, the lower second electrode, the lower separator, and the lower first electrode are joined.

11. In claim 7, the lower assembly part is an electrode assembly facility that manufactures a monocell by sequentially stacking the lower first electrode, the lower central separator, the lower second electrode, and the lower separator from the top layer.

12. In claim 1, the upper assembly and the lower assembly manufacture a monocell in which a first electrode, a separator, a second electrode, and a separator are sequentially laminated, and a halfcell in which a second electrode is laminated between a pair of separators. An electrode assembly facility, wherein at least one of the upper assembly and the lower assembly is configured to be capable of manufacturing the monocell, and at least one of them is configured to be capable of selectively manufacturing either the monocell or the half-cell.

13. In the electrode assembly process using the electrode assembly equipment of claim 12, A first step in which both the upper assembly and the lower assembly manufacture the monocell; and An electrode assembly process in which one of the upper assembly part and the lower assembly part manufactures the monocell and the other one manufactures the halfcell; is alternately repeated.

14. In claim 13, a third step of manufacturing a full cell by combining multiple monocells and one half cell is additionally included. The above first and second steps are repeated at a predetermined cycle, An electrode assembly process in which, in the above-mentioned predetermined cycle, the ratio of the manufacturing quantities of the monocell and the halfcell is determined based on the ratio of the monocell and the halfcell constituting the full cell.

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