Electrode assembly equipment

Abstract

This invention provides an electrode assembly apparatus capable of simultaneously producing two types of battery cells. The electrode assembly apparatus includes a pair of assembly sections, at least one of which can be configured to selectively manufacture a single cell or a half-cell. The electrode assembly apparatus according to the invention includes: a central separator roll for unwinding and continuously supplying a central separator with a width of 2W; a cutting section for continuously cutting the central separator to divide it into an upper central separator and a lower central separator, each with a width of W; an upper assembly section for receiving and assembling the upper central separator and an upper electrode; and a lower assembly section for receiving and assembling the lower central separator and a lower electrode.

Description

Technical Field

[0001] This application claims the benefit of priority based on Korean Patent Application 10-2024-0097988, filed on July 24, 2024, and the entire contents disclosed in that patent application are included as part of this specification.

[0002] This disclosure relates to an apparatus for assembling electrodes for manufacturing electrode assemblies by assembling electrodes and diaphragms, and to an electrode assembly process using the apparatus. Background Technology

[0003] Secondary batteries with high application capabilities and electrical characteristics (such as high energy density) are typically used not only in portable devices, but also in electric vehicles (EVs) or hybrid electric vehicles (HEVs) driven by electric drive sources.

[0004] These secondary batteries are gaining attention not only because of their major advantage of significantly reducing fossil fuel use, but also because their energy use produces no byproducts, making them a new energy source that enhances eco-friendliness and energy efficiency.

[0005] Examples of widely used rechargeable batteries include lithium-ion batteries, lithium polymer batteries, nickel-cadmium batteries, nickel-metal hydride batteries, and nickel-zinc batteries. The operating voltage of these individual rechargeable battery cells (i.e., single-cell batteries) ranges from approximately 2.5V to 4.5V. Therefore, when a higher output voltage is required, multiple battery cells can be connected in series to configure a battery pack. Furthermore, a battery pack can be configured by connecting multiple battery cells in parallel based on the required charge and discharge capacity. Thus, the number of battery cells included in a battery pack and their electrical connections can be configured differently based on the required output voltage and / or charge and discharge capacity.

[0006] Meanwhile, known types of secondary battery cells include cylindrical, prismatic, and pouch-type battery cells. Among them, pouch-type battery cells have a structure in which a stacked electrode assembly with multiple layers of stacked electrodes and separators is housed in a pouch made of a metallic material.

[0007] Figure 1 The structure of the electrode assembly is shown. (Reference) Figure 1 The electrode assembly F is constructed by stacking the positive electrode 21 and the negative electrode 22 together with the separator 1. Specifically, the positive electrode 21 and the negative electrode 22 are stacked alternately and repeatedly, with each separator 1 located between the positive electrode 21 and the negative electrode 22.

[0008] Figure 2 The composition is shown Figure 1 The electrode assembly includes single-cell and half-cell batteries. (Reference) Figure 2 In order to manufacture Figure 1 The electrode assembly F, constructed by pre-stacking the positive electrode 21 and / or the negative electrode 22 with the separator 1, can be assembled together again. Typically, as... Figure 2 As shown, a full cell F can be manufactured by assembling multiple single cells M together, each single cell M having a positive electrode 21, a separator 1, a negative electrode 22 and a separator 1 stacked in sequence, and a half cell H having a negative electrode 22 between a pair of separators 1.

[0009] Furthermore, as mentioned above, to manufacture a single battery cell F, multiple individual cells M and one half-cell H are required. Therefore, the number of half-cells H required is significantly less than the number of individual cells M required. To meet these demands, the equipment used to manufacture half-cells H needs to frequently stop operating to wait for a sufficient number of individual cells M to be produced, or operate at a slower speed than possible. This results in low production efficiency and unnecessary space usage. Summary of the Invention

[0010] Technical issues

[0011] This disclosure was conceived in the context of the relevant art described above, and provides an electrode assembly apparatus that can match the production quantity ratio of single cells and half cells as needed without unnecessary downtime or reduced manufacturing speed.

[0012] Specifically, this disclosure provides an electrode assembly apparatus that can operate at maximum speed while maintaining the ratio of single cells to half cells required for full cell production.

[0013] Another object of this disclosure is to provide an electrode assembly process for manufacturing electrode assemblies by operating the electrode assembly equipment described above.

[0014] The technical problems to be solved by this disclosure are not limited to the above-mentioned objectives. Other objectives and advantages not described in this disclosure may be understood through the following description and will be more clearly understood through the examples of this disclosure. Furthermore, it will be apparent that the objectives and advantages of this disclosure can be embodied by the means indicated in the claims and combinations thereof.

[0015] Technical solution

[0016] To achieve the above objectives, this disclosure provides an electrode assembly apparatus comprising: a central diaphragm roll from which a central diaphragm of width 2W is unrolled and continuously supplied; a cutting section configured to continuously cut the central diaphragm into an upper central diaphragm and a lower central diaphragm, each of width W; an upper assembly section configured to be supplied with and assemble the upper central diaphragm and an upper electrode; and a lower assembly section configured to be supplied with and assemble the lower central diaphragm and a lower electrode.

[0017] According to this disclosure, two cell units can be produced simultaneously using a central diaphragm supplied from a single roll.

[0018] The upper electrode may include an upper first electrode and an upper second electrode, wherein the upper second electrode has a polarity different from that of the upper first electrode. In this case, the electrode assembly apparatus may further include: an upper first electrode roll, from which the upper first electrode is unrolled and continuously supplied to the upper assembly section; an upper diaphragm roll, from which an upper diaphragm of width W is unrolled and continuously supplied to the upper assembly section; and an upper second electrode roll, from which the upper second electrode is unrolled and continuously supplied to the upper assembly section.

[0019] The lower electrode may include a lower first electrode and a lower second electrode, wherein the lower second electrode has a polarity different from that of the lower first electrode. In this case, the electrode assembly apparatus may further include: a lower first electrode roll, from which the lower first electrode is unrolled and continuously supplied to the lower assembly section; a lower diaphragm roll, from which a lower diaphragm of width W is unrolled and continuously supplied to the lower assembly section; and a lower second electrode roll, from which the lower second electrode is unrolled and continuously supplied to the lower assembly section.

[0020] According to one aspect, the upper assembly section can be configured to manufacture single cells.

[0021] Specifically, the upper assembly can be used to manufacture a single cell by combining the upper first electrode, upper separator, upper second electrode and upper central separator in a sequential stacking manner starting from the top layer.

[0022] According to one aspect, the lower assembly section can be configured to selectively manufacture either single cells or half cells.

[0023] Specifically, the lower assembly section can manufacture a half cell by combining the lower central diaphragm, the lower second electrode, and the lower diaphragm in a sequential stacking manner starting from the top layer.

[0024] In addition, the lower assembly section can be used to manufacture a single cell by combining the lower central diaphragm, the lower second electrode, the lower diaphragm, and the lower first electrode in a sequential stacking manner starting from the top layer.

[0025] In this case, the electrode assembly equipment may also include an adhesive film roll from which the adhesive film is unrolled and continuously supplied.

[0026] Unlike diaphragms, electrodes are formed from thin metal foil material, so they can tear when subjected to excessive tension. Therefore, while providing appropriate tension can prevent the diaphragm from sagging during transport in the case of diaphragms, in the case of electrodes, a support is needed to support the electrodes from below.

[0027] Therefore, the adhesive film can be attached to the lower surface of the lower first electrode before the lower central septum, lower second electrode, lower septum, and lower first electrode are assembled together, and can be detached from the lower surface of the lower first electrode after the lower central septum, lower second electrode, lower septum, and lower first electrode are assembled together. Because the adhesive film supports the lower first electrode, no sagging due to gravity will occur in the lower first electrode stacked at the bottom without being supported by any septum.

[0028] On the other hand, the upper assembly can be configured to selectively manufacture either single cells or half cells.

[0029] Specifically, the upper assembly can be used to manufacture a half cell by combining the upper separator, the upper second electrode, and the upper central separator in a sequential stacking manner starting from the top layer.

[0030] In addition, the upper assembly can be used to manufacture a single cell by combining the upper separator, the upper second electrode, the upper central separator and the upper first electrode in a sequential stacking manner starting from the top layer.

[0031] In this case, the electrode assembly equipment may also include an adhesive film roll from which the adhesive film is unrolled and continuously supplied.

[0032] Unlike diaphragms, electrodes are formed from thin metal foil material, so they can tear when subjected to excessive tension. Therefore, while providing appropriate tension can prevent the diaphragm from sagging during transport in the case of diaphragms, in the case of electrodes, a support is needed to support the electrodes from below.

[0033] Therefore, the adhesive film can be attached to the lower surface of the upper first electrode before the upper diaphragm, the upper second electrode, the upper central diaphragm, and the upper first electrode are assembled together, and can be detached from the lower surface of the upper first electrode after the upper diaphragm, the upper second electrode, the upper central diaphragm, and the upper first electrode are assembled together.

[0034] According to this other aspect, the upper assembly section can be configured to manufacture a single cell.

[0035] Specifically, the lower assembly can manufacture a single cell by combining the lower first electrode, the lower central diaphragm, the lower second electrode assembly, and the lower diaphragm in a sequential stacking manner starting from the top layer.

[0036] This disclosure also provides an electrode assembly process using an electrode assembly apparatus.

[0037] In an electrode assembly apparatus according to one aspect, an upper assembly section and a lower assembly section can manufacture single cells and half cells. In a single cell, a first electrode, a separator, a second electrode, and a separator are stacked sequentially. In a half cell, a second electrode is inserted and stacked between a pair of separators. At least either the upper assembly section or the lower assembly section can be configured to manufacture single cells, and at least either the upper assembly section or the lower assembly section can be configured to selectively manufacture either single cells or half cells.

[0038] In this case, the electrode assembly process according to the present disclosure includes: alternatingly repeating the first step and the second step, wherein in the first step, both the upper assembly part and the lower assembly part manufacture single cells, and in the second step, either the upper assembly part or the lower assembly part manufactures a single cell, and the other of the upper assembly part or the lower assembly part manufactures a half cell.

[0039] Since the manufacturing of a full cell requires far fewer half cells than a single cell, both the upper and lower assembly sections can operate in this way without idle time, while still maintaining the production ratio of half cells to single cells.

[0040] According to one aspect, the electrode assembly process may also include a third step of manufacturing a full cell by combining multiple single cells and a half cell.

[0041] The first and second steps can be repeated at predetermined intervals, and the manufacturing ratio of single cells and half cells in the predetermined intervals can be determined based on the ratio of single cells to half cells constituting a full cell. For example, in one aspect, a full cell may comprise 2n+1 single cells and one half cell, and depending on this, the electrode assembly process can be repeatedly performed such that the second step is performed once every n times the first step is performed.

[0042] Beneficial effects

[0043] This disclosure provides an electrode assembly apparatus including an assembly section configured to selectively produce either a single cell or a half cell, so as to match the production quantity ratio of single cells and half cells as needed without unnecessary downtime or reduced manufacturing speed.

[0044] Specifically, this disclosure aims to provide an electrode assembly apparatus capable of operating at maximum speed while producing single cells and half cells in each cycle at a predetermined quantity ratio based on the ratio of single cells to half cells required to manufacture a full cell.

[0045] This disclosure may also provide an electrode assembly process for manufacturing electrode assemblies by operating the above-described electrode assembly equipment.

[0046] Furthermore, this disclosure may have various other effects, some of which will be described in the relevant aspects, while effects that can be readily deduced by those skilled in the art may be omitted from the description. Attached Figure Description

[0047] Figure 1 The structure of the electrode assembly is shown.

[0048] Figure 2 The composition is shown Figure 1 The electrode assembly consists of single-cell and half-cell batteries.

[0049] Figure 3 An electrode assembly device based on one aspect is shown.

[0050] Figure 4 It shows Figure 3 The central diaphragm is cut by the cutting section.

[0051] Figure 5 An electrode assembly device based on another aspect is shown.

[0052] Figure 6 The electrode assembly process according to one aspect is shown.

[0053] Figures 7 to 9 The first to third steps according to one aspect are shown respectively.

[0054] Figure 10 The assembled battery cell is shown.

[0055] [Explanation of reference numerals in the attached figures]

[0056] 1: Diaphragm; 10: Central diaphragm; 100: Central diaphragm roll; 101: Upper central diaphragm; 102: Lower central diaphragm; 11: Upper diaphragm; 110: Upper diaphragm roll; 12: Lower diaphragm; 120: Lower diaphragm roll; 21: First electrode (positive electrode); 211: Upper first electrode; 2110: Upper first electrode roller; 212: Lower first electrode; 2120: Lower first electrode roller; 22: Second electrode (negative electrode); 221: Upper second electrode; 2210: Upper second electrode roller; 222: Lower second electrode; 2220: Lower second electrode roller; 3: Adhesive film; 30: Adhesive film roller; 31: Recycling roller; 4: Cutting section; 51: Upper assembly section; 52: Lower assembly section; M: Single cell; H: Half cell; F: Full cell (electrode assembly); Detailed Implementation

[0057] The above-described objects, features, and advantages will now be described in detail with reference to the accompanying drawings, enabling those skilled in the art to readily practice the technical concepts of this disclosure. In describing this disclosure, detailed descriptions of known technologies related to this disclosure will be omitted if it is determined that such detailed descriptions would unnecessarily obscure the essential points of this disclosure. Preferred aspects of this disclosure will be described in detail below with reference to the accompanying drawings. In the drawings, the same reference numerals are used to refer to the same or similar components.

[0058] Although the terms "first," "second," etc., are used to describe various components, it is clear that these components are not limited by these terms. These terms are only used to distinguish one component from another, and it is obvious that, unless otherwise stated, the first component can also be the second component.

[0059] Throughout this specification, unless otherwise stated otherwise, each element may be singular or plural.

[0060] In the following text, the phrase “any configuration is set on the upper or lower side of the component” or “on or below the component” may mean not only that any configuration is set to contact the upper or lower surface of the component, but also that another configuration may be inserted between the component and any configuration set on or below the component.

[0061] Additionally, if a component is described as “connected,” “linked,” or “in contact” with another component, the components may be directly connected or in contact with each other. However, it should be understood that another element may be “inserted” between the components, or the components may be “connected,” “linked,” or “in contact” with each other through another element.

[0062] As used herein, singular expressions include plural expressions unless the context clearly specifies otherwise. In this document, the terms “comprise” or “comprising” should not be construed as necessarily including all the various components or steps described in the specification, and should be construed as meaning that some components or steps may be excluded, or that additional components or steps may be included.

[0063] Throughout this disclosure, unless otherwise stated, the phrase “A and / or B” means A, B, or A and B, and unless otherwise stated, the phrase “C to D” means equal to or greater than C and equal to or less than D.

[0064] Preferred aspects of this disclosure will be described below with reference to the accompanying drawings.

[0065] Figure 3 An electrode assembly device according to one aspect is shown. (Reference) Figure 3 According to one aspect, the electrode assembly device includes a central diaphragm roll 100 and a central diaphragm 10 that is unrolled from the central diaphragm roll 100 and continuously supplied.

[0066] The central diaphragm 10 is divided into two parts in the width direction as it passes through the cutting section 4. Specifically, the central diaphragm 10 is cut based on the cutting section 4 and divided into an upper central diaphragm 101 and a lower central diaphragm 102.

[0067] Figure 4 It shows Figure 3 The central diaphragm is cut by the cutting section. (Reference) Figure 4 The central septum 10 initially has a width of 2W and is divided into an upper central septum 101 and a lower central septum 102 as it passes through the cutting section 4, each central septum having a width of W.

[0068] According to this aspect, the diaphragm can be supplied from one central diaphragm roll 100 to both assembly sections at the same speed. Therefore, the two assembly processes can be controlled to operate simultaneously at the same speed, without either becoming slower or faster.

[0069] Refer again Figure 3 The upper central diaphragm 101 is combined with the upper electrode in the upper assembly section 51 to form at least one type of cell, and the lower central diaphragm 102 is combined with the lower electrode in the lower assembly section 52 to form at least one type of cell. That is, in the electrode assembly apparatus according to this aspect, at least two types of cell cells are produced simultaneously and continuously.

[0070] The upper electrode may include an upper first electrode 211 and an upper second electrode 221, wherein the upper second electrode 221 has a polarity different from that of the upper first electrode 211. In this case, the electrode assembly device may further include: an upper first electrode roll 2110, from which the upper first electrode 211 is unrolled and continuously supplied to the upper assembly section 51; an upper diaphragm roll 110, from which an upper diaphragm 11 of width W is unrolled and continuously supplied to the upper assembly section 51; and an upper second electrode roll 2210, from which the upper second electrode 221 is unrolled and continuously supplied to the upper assembly section 51.

[0071] The lower electrode may include a lower first electrode 212 and a lower second electrode 222 having a polarity different from that of the lower first electrode 212. In this case, the electrode assembly device may further include: a lower first electrode roll 2120 from which the lower first electrode 212 is unrolled and continuously supplied to the lower assembly section 52; a lower diaphragm roll 120 from which a lower diaphragm 12 of width W is unrolled and continuously supplied to the lower assembly section 52; and a lower second electrode roll 2220 from which the lower second electrode 222 is unrolled and continuously supplied to the lower assembly section 52.

[0072] According to one aspect, the upper assembly 51 can be configured to manufacture a single cell M.

[0073] Specifically, the upper assembly 51 can manufacture a single cell M by combining the upper first electrode 211, the upper diaphragm 11, the upper second electrode 221 and the upper central diaphragm 101 in a sequential stacking manner starting from the top layer.

[0074] According to one aspect, the lower assembly section 52 can be configured to selectively manufacture either a single cell M or a half cell H.

[0075] Specifically, the lower assembly 52 can manufacture the half cell H by combining the lower central diaphragm 102, the lower second electrode 222 and the lower diaphragm 12 in a sequential stacking manner starting from the top layer.

[0076] Alternatively, the lower assembly 52 can be used to manufacture a single cell M by combining the lower central diaphragm 102, the lower second electrode 222, the lower diaphragm 12 and the lower first electrode 212 in a sequential stacking manner starting from the top layer.

[0077] In this case, the electrode assembly equipment may also include an adhesive film roll 30 from which the adhesive film 3 is unrolled and continuously supplied.

[0078] Unlike diaphragms, electrodes are formed from thin metal foil material, so they can tear when subjected to excessive tension. Therefore, while providing appropriate tension can prevent the diaphragm from sagging during transport in the case of diaphragms, in the case of electrodes, a support is needed to support the electrodes from below.

[0079] Therefore, the adhesive film 3 can be attached to the lower surface of the lower first electrode 212 before the lower central septum 102, the lower second electrode 222, the lower septum 12, and the lower first electrode 212 are assembled together, and can be detached from the lower surface of the lower first electrode 212 after the lower central septum 102, the lower second electrode 222, the lower septum 12, and the lower first electrode 212 are assembled together. Since the adhesive film 3 supports the lower first electrode 212, no sagging due to gravity will occur in the lower first electrode 212 stacked at the bottom and not supported by the septum 1.

[0080] The adhesive film 3 can be rewound onto the recycling roller 31 and recycled after passing through the lower assembly section 52 and detaching from the lower first electrode 212.

[0081] Figure 5 An electrode assembly device according to another aspect is shown. (Reference) Figure 5 Unlike the first aspect, the upper assembly 51 according to the second aspect can be configured to selectively manufacture either a single cell M or a half cell H.

[0082] Specifically, the upper assembly 51 can be used to manufacture the half cell H by combining the upper diaphragm 11, the upper second electrode 221 and the upper central diaphragm 101 in a sequential stacking manner starting from the top layer.

[0083] Alternatively, the upper assembly 51 can be used to manufacture a single cell M by combining the upper diaphragm 11, the upper second electrode 221, the upper central diaphragm 101 and the upper first electrode 211 in a sequential stacking manner starting from the top layer.

[0084] In this case, the electrode assembly equipment may also include an adhesive film roll 30 from which the adhesive film 3 is unrolled and continuously supplied.

[0085] Unlike diaphragms, electrodes are formed from thin metal foil material, so they can tear when subjected to excessive tension. Therefore, while providing appropriate tension can prevent the diaphragm from sagging during transport in the case of diaphragms, in the case of electrodes, a support is needed to support the electrodes from below.

[0086] Therefore, the adhesive film 3 can be attached to the lower surface of the upper first electrode 211 before the upper diaphragm 11, the upper second electrode 221, the upper central diaphragm 101 and the upper first electrode 211 are combined with each other, and can be detached from the lower surface of the upper first electrode 211 after the upper diaphragm 11, the upper second electrode 221, the upper central diaphragm 101 and the upper first electrode 211 are combined with each other.

[0087] The adhesive film 3 can be rewound onto the recycling roller 31 and recycled after passing through the upper assembly section 51 and detaching from the upper first electrode 212.

[0088] According to this other aspect, the upper assembly section 51 can be configured to manufacture a single cell M.

[0089] Specifically, the lower assembly 52 can manufacture a single cell M by combining the lower first electrode 212, the lower central diaphragm 102, the lower second electrode 222 and the lower diaphragm 12 in a sequential stacking manner starting from the top layer.

[0090] In summary, in the electrode assembly equipment, the upper assembly part 51 and the lower assembly part 52 can manufacture a single cell M in which the first electrode 21, the separator 1, the second electrode 22 and the separator 1 are stacked in sequence, and a half cell H in which the second electrode 22 is inserted and stacked between a pair of separators 1. At least one of the upper assembly part 51 and the lower assembly part 52 can be configured to manufacture a single cell M, and at least one of them can be configured to selectively manufacture either the single cell M or the half cell H.

[0091] In other words, in the electrode assembly apparatus according to one aspect and the other aspect of this disclosure, at least one party manufactures a single cell, and at least the other party selectively manufactures either a single cell or a half cell, thereby enabling operation corresponding to the respective requirements of single cells and half cells without slowing down the overall manufacturing speed or operating speed of the apparatus.

[0092] Figure 6 An electrode assembly process based on one aspect is shown, and Figures 7 to 9 The first to third steps according to one aspect are shown respectively. Referring to these figures, the electrode assembly process according to one aspect includes alternately repeating the first step S1 and the second step S2, in which both the upper assembly part 51 and the lower assembly part 52 manufacture a single cell M, and in the second step S2, one of the upper assembly part 51 and the lower assembly part 52 manufactures a single cell M, and the other manufactures a half cell H.

[0093] Since manufacturing a full cell F requires far fewer half cells H compared to manufacturing a single cell M, both the upper assembly section 51 and the lower assembly section 52 can be operated in this manner without idle time, while still maintaining the production ratio of half cells H to single cells M.

[0094] Refer again Figure 9 According to one aspect of the electrode assembly process, a third step S3 may also be included to manufacture a full cell F by combining multiple single cells M and a half cell H.

[0095] Figure 10 The assembled battery cell is shown. (Reference) Figure 9 According to one aspect of this disclosure, the full cell F can be constructed by combining n single cells M and a half cell H, and can have a structure in which a first electrode 21 and a second electrode 22 are alternately and repeatedly stacked between corresponding layers of a plurality of stacked separators 1.

[0096] In this regard, we also refer to Figure 6 The first step S1 and the second step S2 can be repeated at a predetermined cycle, and the manufacturing quantity ratio of single cell M and half cell H in the predetermined cycle can be determined based on the ratio of single cell M to half cell H constituting the full cell F. For example, in one aspect, the full cell F may include 2n+1 single cells M and one half cell H, and depending on this, the electrode assembly process can be repeated such that the second step S2 is performed once every n times the first step S1 is performed.

[0097] The foregoing should be interpreted as illustrative rather than restrictive in all respects, and the scope of this disclosure shall be determined by the claims rather than the foregoing detailed description. Furthermore, the meaning and scope of the claims described below, as well as all variations and modifications derived from equivalent concepts, should be interpreted as being included within the scope of this disclosure.

[0098] Although this disclosure has been described in conjunction with exemplary drawings, it should be understood that this disclosure is not limited to the aspects and drawings disclosed in this specification, and various modifications can be made by those skilled in the art without departing from the scope and concept of this disclosure. Furthermore, although the operational effects resulting from a configuration according to this disclosure are not explicitly stated in the description of a particular aspect of this disclosure, it should be understood that the effects that can be expected from such configuration should also be recognized.

Claims

1. An electrode assembly apparatus, the electrode assembly apparatus comprising: A central diaphragm roll, with a width of 2W, is unwound from the central diaphragm roll and continuously supplied; The cutting section is configured to continuously cut the central diaphragm into an upper central diaphragm and a lower central diaphragm, both with a width of W. An upper assembly unit configured to supply and combine the upper central diaphragm and the upper electrode; as well as The lower assembly unit is configured to be supplied with and combine the lower central diaphragm and the lower electrode.

2. The electrode assembly equipment according to claim 1, wherein, The upper electrode includes an upper first electrode and an upper second electrode, wherein the polarity of the upper second electrode is different from the polarity of the upper first electrode. The electrode assembly equipment also includes: An upper first electrode roll, wherein the upper first electrode is unrolled from the upper first electrode roll and continuously supplied to the upper assembly; An upper diaphragm roll, wherein an upper diaphragm of width W is unwound from the upper diaphragm roll and continuously supplied to the upper assembly; and An upper second electrode roll is provided, from which the upper second electrode is unrolled and continuously supplied to the upper assembly.

3. The electrode assembly equipment according to claim 2, wherein, The upper assembly section manufactures a single cell by combining the upper first electrode, the upper separator, the upper second electrode, and the upper central separator in a sequential stacking manner starting from the top layer.

4. The electrode assembly equipment according to claim 2, wherein, The upper assembly section manufactures a half-cell by combining the upper separator, the upper second electrode, and the upper central separator in a sequential stacking manner starting from the top layer.

5. The electrode assembly apparatus according to claim 4, wherein, The upper assembly section manufactures a single cell by combining the upper separator, the upper second electrode, the upper central separator, and the upper first electrode in a sequential stacking manner starting from the top layer.

6. The electrode assembly apparatus according to claim 5, further comprising: An adhesive film roll from which the adhesive film is unwound and continuously supplied. The adhesive film is attached to the lower surface of the upper first electrode before the upper diaphragm, the upper second electrode, the upper central diaphragm, and the upper first electrode are assembled together. Wherein, after the upper diaphragm, the upper second electrode, the upper central diaphragm and the upper first electrode are assembled together, the adhesive film detaches from the lower surface of the upper first electrode.

7. The electrode assembly apparatus according to claim 1, wherein, The lower electrode includes a lower first electrode and a lower second electrode, wherein the polarity of the lower second electrode is different from that of the lower first electrode. The electrode assembly equipment also includes: A lower first electrode roll, wherein the lower first electrode is unrolled from the lower first electrode roll and continuously supplied to the lower assembly section; A lower diaphragm roll, wherein a lower diaphragm of width W is unwound from the lower diaphragm roll and continuously supplied to the lower assembly section; and The lower second electrode roll is unrolled from the lower second electrode roll and continuously supplied to the lower assembly.

8. The electrode assembly apparatus according to claim 7, wherein, The lower assembly section manufactures a half-cell by combining the lower central diaphragm, the lower second electrode, and the lower diaphragm in a sequential stacking manner starting from the top layer.

9. The electrode assembly apparatus according to claim 8, wherein, The lower assembly section manufactures a single cell by combining the lower central diaphragm, the lower second electrode, the lower diaphragm, and the lower first electrode in a sequential stacking manner starting from the top layer.

10. The electrode assembly apparatus according to claim 9, further comprising: An adhesive film roll from which the adhesive film is unwound and continuously supplied. The adhesive film is attached to the lower surface of the lower first electrode before the lower central septum, the lower second electrode, the lower septum, and the lower first electrode are assembled together, and detaches from the lower surface of the lower first electrode after the lower central septum, the lower second electrode, the lower septum, and the lower first electrode are assembled together.

11. The electrode assembly apparatus according to claim 7, wherein, The lower assembly section manufactures a single cell by combining the lower first electrode, the lower central diaphragm, the lower second electrode, and the lower diaphragm in a sequential stacking manner starting from the top layer.

12. The electrode assembly apparatus according to claim 1, wherein, The upper assembly and the lower assembly manufacture single cells and half cells. In the single cell, a first electrode, a separator, a second electrode, and a separator are stacked sequentially. In the half cell, a second electrode is inserted and stacked between a pair of separators. Wherein, at least one of the upper assembly portion or the lower assembly portion is configured to manufacture the single cell, and at least one of the upper assembly portion or the lower assembly portion is configured to selectively manufacture one of the single cell or the half cell.

13. An electrode assembly process using the electrode assembly apparatus according to claim 12, the electrode assembly process comprising: Alternately repeat steps one and two. In the first step, both the upper assembly section and the lower assembly section manufacture the single battery cell. In the second step, one of the upper assembly section and the lower assembly section manufactures the single cell, and the other of the upper assembly section and the lower assembly section manufactures the half cell.

14. The electrode assembly process according to claim 13, further comprising: The third step in manufacturing a complete battery cell involves combining multiple single cells and one half-cell. The first step and the second step are repeated at a predetermined period, and In the predetermined period, the manufacturing quantity ratio of the single cell and the half cell that constitute the full cell is determined based on the ratio of the single cell and the half cell.

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