Diaphragm supply device

Abstract

A septum supply device according to one embodiment of the present disclosure includes a bobbin support member including a first face facing a supply location where a septum is disposed to be supplied and a second face opposite the first face, a plurality of bobbin holders disposed on the first face and the second face, respectively, to support the septum, and at least one of the plurality of bobbin holders is disposed at the supply location, a first shaft disposed on the bobbin support member in a direction passing through the first face and the second face, and a second shaft serving as a rotation shaft of the bobbin support member, the plurality of bobbin holders being rotated with at least one of the first shaft and the second shaft as a reference to replace the bobbin holder disposed at the supply location.

Description

Technical Field

[0001] This disclosure relates to a diaphragm supply device. Background Technology

[0002] Unlike primary batteries, secondary batteries offer the convenience of being both charged and discharged, making them a popular choice as a power source for various mobile devices and electric vehicles. Because of their rechargeable and discharge capabilities, secondary batteries can be used in a variety of fields, including digital cameras, mobile phones, laptops, hybrid vehicles, electric vehicles, and energy storage systems (ESS).

[0003] Such a secondary battery may include a battery cell, which houses an electrode assembly inside a casing, consisting of a positive electrode plate, a negative electrode plate, and a separator formed by stacking or rolling.

[0004] On the other hand, during the cell manufacturing process, the separator can be wound into a roll and then unwound to provide power. If the separator is completely depleted, separate time is needed to replenish it, thus increasing the manufacturing time of the secondary battery.

[0005] Therefore, research is focusing on supply devices that can quickly replace diaphragms. Utility Model Content

[0006] (a) Technical problems to be solved

[0007] According to one aspect of this disclosure, the diaphragm can be quickly replaced or replenished.

[0008] On the other hand, the diaphragm supply device disclosed herein can be widely used in electric vehicles, battery charging stations, and other green technology fields such as solar power generation and wind power generation that utilize batteries. Furthermore, the diaphragm supply device disclosed herein can be used in eco-friendly electric vehicles and hybrid vehicles that prevent climate change by suppressing air pollution and greenhouse gas emissions.

[0009] (II) Technical Solution

[0010] A diaphragm supply device according to an embodiment of the present disclosure may include: a spool support member including a first surface facing a supply position and a second surface opposite to the first surface, the supply position being a position where the diaphragm is disposed; and a plurality of spool supports disposed on at least one of the first surface and the second surface to support the diaphragm, wherein at least one of the plurality of spool supports is disposed at the supply position, the spool support member further including a first axis and a second axis intersecting the first axis, the plurality of spool supports being rotated about at least one of the first axis and the second axis to replace the spool support disposed at the supply position.

[0011] According to one embodiment, the plurality of spool supports may be arranged adjacent to each other around the first axis at least one of the first surface and the second surface.

[0012] According to one embodiment, the plurality of spool supports can be rotated about the first axis to replace the spool support located at the supply position with another spool support arranged adjacent to it.

[0013] According to one embodiment, the plurality of spool supports may protrude from at least one of the first and second faces parallel to the first axis.

[0014] According to one embodiment, the plurality of spool support members can be rotated about the second axis so that the second surface faces the supply position, thereby allowing the plurality of spool supports to rotate about the second axis.

[0015] According to one embodiment, the first axis and the second axis may be orthogonal to each other.

[0016] According to one embodiment, the plurality of spool supports may be arranged adjacent to each other in a circumferential direction around the first axis.

[0017] According to one embodiment, the first shaft may protrude from at least one of the first and second surfaces of the spool support member, and the second shaft may protrude from the spool support member in a direction perpendicular to the first shaft.

[0018] According to one embodiment, the first axis may be a virtual axis defined as the rotation center axis of the plurality of spool supports, and the second axis may be a virtual axis defined as the rotation center axis of the spool support component.

[0019] According to another embodiment of the present disclosure, the diaphragm supply device may include: a spool support member including a supply position, the supply position being a position where the supplied diaphragm is disposed; and a plurality of spool supports supporting the diaphragm, wherein at least one of the plurality of spool supports is disposed at the supply position, the plurality of spool supports rotating about a first axis to replace the spool support disposed at the supply position.

[0020] According to one embodiment, the plurality of spool supports may be arranged adjacent to each other around the first axis on at least one face of the spool support member.

[0021] According to one embodiment, the first axis may be a virtual axis that is defined as the rotation center axis of the plurality of spool supports.

[0022] According to another embodiment of the present disclosure, a diaphragm supply device may include: a spool support member including a first surface facing a supply position and a second surface opposite to the first surface, the supply position being a position where a diaphragm is supplied; and a plurality of spool supports supporting the diaphragm and disposed on at least one of the first and second surfaces, at least one of the plurality of spool supports being disposed at the supply position, the spool support member including a second axis disposed in a direction perpendicular to the direction toward the first and second surfaces, the spool support member rotating about the second axis to make the second surface face the supply position, thereby changing the positions of the first and second surfaces relative to each other.

[0023] According to one embodiment, the spool support member is rotatable such that at least one of the plurality of spool supports disposed on the second surface is disposed at the supply position.

[0024] According to one embodiment, the second axis may be a virtual axis defined as the rotation center axis of the spool support component.

[0025] The above describes a solution based on this disclosure, but it is exemplary and any addition of other configurations not mentioned should be understood as belonging to this disclosure.

[0026] (III) Beneficial Effects

[0027] According to an embodiment of the present disclosure, the diaphragm supply device can shorten the manufacturing time of secondary batteries by quickly replacing or replenishing the diaphragm. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of a secondary battery manufacturing apparatus according to an embodiment of the present disclosure.

[0029] Figure 2This is a diagram showing the electrode clamp advancing toward the diaphragm according to one embodiment.

[0030] Figure 3 This is a diagram illustrating electrode clamps alternately arranged to be housed in an alignment box according to one embodiment.

[0031] Figure 4 This is a diagram illustrating the diaphragm termination according to one embodiment.

[0032] Figure 5 This is a diagram illustrating pressurization via a diaphragm pressurization component according to one embodiment.

[0033] Figure 6 This is a diagram showing the electrode clamp detached according to one embodiment.

[0034] Figure 7 This is a diagram illustrating the formation of an electrode assembly in an alignment box according to one embodiment.

[0035] Figure 8a This is a plan view of the state in which the electrode clamp supports the electrode according to one embodiment. Figure 8b This is a plan view of the state in which the electrode clamp supports the electrode according to another embodiment.

[0036] Figure 9 This is a perspective view of an alignment box according to one embodiment.

[0037] Figure 10 This is a plan view showing the state of inserting an electrode clamp into an alignment box according to one embodiment.

[0038] Figure 11 This is a flowchart of a secondary battery manufacturing method according to an embodiment of the present disclosure.

[0039] Figure 12 It is shown in detail Figure 11 A flowchart of the manufacturing method.

[0040] Figure 13 This is a perspective view of a diaphragm supply device according to an embodiment of the present disclosure.

[0041] Figure 14 This is a diagram illustrating rotation about a first axis to supplement the diaphragm according to one embodiment.

[0042] Figure 15 This is a diagram illustrating rotation about a second axis to supplement the diaphragm according to one embodiment.

[0043] Figure 16 This is a perspective view of a diaphragm supply device according to another embodiment of the present disclosure.

[0044] Explanation of reference numerals in the attached figures:

[0045] 1: Secondary battery manufacturing equipment; 10, 100: Separator supply equipment

[0046] 110: Bollard support component; 110a: First surface of the bollard support component

[0047] 110b: Second surface of the spool support component; 120: Spool bracket

[0048] 131: First axis 132: Second axis

[0049] 20: Electrode Supply Department 21: First Electrode Supply Department

[0050] 22: Second electrode supply section; 25: Adsorption section

[0051] 34: Diaphragm clamp 35: Diaphragm pressurization section

[0052] 36: Diaphragm cutter; 40: Electrode clamp.

[0053] 41: First electrode clamp 42: Second electrode clamp

[0054] 50: Alignment Box 54: Alignment Slot

[0055] 60: Electrode Library 61: First Electrode Library

[0056] 62: Second Electrode Library EA: Electrode Assembly

[0057] e1: First electrode; e2: Second electrode

[0058] SP: diaphragm; sa: adsorption region

[0059] AP: Adhesive part; P: Supply location Detailed Implementation

[0060] Before describing the embodiments in detail, it should be noted that the terms or words used in the following description and claims should not be construed as limited to their general or dictionary meanings, but should be interpreted as meanings and concepts consistent with the technical ideas of this utility model, based on the principle that the inventor can appropriately define the concepts of the terms in order to best describe his invention.

[0061] The same reference numerals or symbols used in each figure indicate parts or components that perform substantially the same function. For ease of explanation and understanding, the same reference numerals or symbols may also be used in different embodiments.

[0062] In the following description, unless the context clearly indicates otherwise, singular expressions include plural expressions. Terms such as “comprising” or “constituting” should be understood as being intended to specify the presence of features, numbers, steps, operations, components, parts or combinations thereof described in the specification, rather than precluding the presence or additional possibilities of one or more other features, numbers, steps, operations, components, parts or combinations thereof.

[0063] Additionally, it should be noted that in the following descriptions, terms such as top, upper, lower, side, front, and back are based on the direction shown in the diagram. If the direction of the corresponding object changes, it can be described in a different way.

[0064] Furthermore, in the following description and claims, terms including ordinal numbers such as "first" and "second" may be used to distinguish components. These ordinal numbers are used to distinguish identical or similar components, and the meaning of the terms should not be interpreted restrictively by using these ordinal numbers. For example, the order of use or arrangement of components combined with these ordinal numbers should not be interpreted restrictively by these ordinal numbers. These ordinal numbers may be used interchangeably as needed.

[0065] The present disclosure will now be described in detail with reference to the accompanying drawings.

[0066] Figure 1 This is a schematic diagram of a secondary battery manufacturing apparatus according to an embodiment of the present disclosure.

[0067] According to one embodiment of the present disclosure, a secondary battery manufacturing apparatus 1 may include: a separator supply device 10 for supplying a separator SP; an electrode clamp 40 including a first electrode clamp 41 and a second electrode clamp 42 disposed facing each other across the separator SP; an electrode magazine 60 for loading electrodes; an electrode supply unit 20 for supplying electrodes from the electrode magazine 60 to the electrode clamp 40; and an alignment box 50 for forming an electrode assembly EA.

[0068] Specifically, a secondary battery manufacturing apparatus according to an embodiment of this disclosure may include: an alignment box 50 including an alignment space S; a plurality of first electrode clamps 41, spaced apart from each other along the extension direction (Z-axis) of a separator SP extending toward the alignment box 50, and supporting a first electrode e1; and a plurality of second electrode clamps 42, disposed on the other side of the separator SP facing between the plurality of first electrode clamps 41, and supporting a second electrode e2. The plurality of first electrode clamps 41 and the plurality of second electrode clamps 42 may be configured to move into the alignment space S for alignment while intersecting each other across the separator SP, such that the first electrode e1 and the second electrode e2 are alternately stacked in the alignment space S across the separator SP.

[0069] The detailed configuration of this disclosure is described below.

[0070] The diaphragm supply device 10 can supply diaphragms SP to the alignment box 50. For example, the diaphragm SP can be winded into a roll shape and loaded into the diaphragm supply device 10, and then unwinded during supply. The diaphragm SP can be supplied by the diaphragm supply device 10 in the direction toward the alignment box 50 (-Z axis). The detailed structure of the diaphragm supply device 10 disclosed herein will be provided in [the following section / section / etc.]. Figure 13 The explanation will follow.

[0071] The electrode magazine 60 can accommodate multiple electrodes. The electrode magazine 60 may include a first electrode magazine 61 accommodating a first electrode e1 and a second electrode magazine 62 accommodating a second electrode e2. According to one embodiment, the number of electrode magazines 60 and electrode supply units 20 may correspond to the number of electrode clamps 40. However, this disclosure is not limited to this; it is acceptable to provide only one first electrode magazine 61 and one second electrode magazine 62. Furthermore, according to one embodiment, the electrode magazine 60 can be adjusted to correspond to the sizes of electrodes e1 and e2. That is, if the size of the electrodes is larger or smaller than the electrodes e1 and e2 shown in the figure, the electrode magazine 60 can be changed to a corresponding size.

[0072] On the other hand, in this disclosure, the first electrode e1 and the second electrode e2 can be electrode plates with opposite polarities. According to one embodiment, the first electrode e1 can have either a positive or negative polarity, and the second electrode e2 can have the remaining polarity. For example, the first electrode e1 can be a positive electrode plate, and the second electrode e2 can be a negative electrode plate. However, this disclosure is not limited thereto.

[0073] Electrode supply unit 20 can extract electrodes e1 and e2 from electrode magazine 60 and supply them to electrode fixture 40. Electrode supply unit 20 may include a first electrode supply unit 21 that extracts the first electrode e1 from the first electrode magazine 61 and a second electrode supply unit 22 that extracts the second electrode e2 from the second electrode magazine 62. The first electrode supply unit 21 can supply the first electrode e1 to the first electrode fixture 41 (described later), and the second electrode supply unit 22 can supply the second electrode e2 to the second electrode fixture 42 (described later).

[0074] Furthermore, the electrode supply unit 20 of this disclosure may further include an adsorption unit 25 that adsorbs electrodes e1 and e2 by forming a vacuum pressure. The adsorption unit 25 may be provided to the first electrode supply unit 21 and the second electrode supply unit 22, respectively. The adsorption unit 25 can adsorb the adsorption region Sa of electrodes e1 and e2. At least one adsorption unit 25 may be provided on the electrode supply unit 20 facing the electrode magazine 60. The adsorption unit 25 can hold at least one surface of electrodes e1 and e2 like a suction cup, so that electrodes e1 and e2 remain temporarily attached to the electrode supply unit 20. According to one embodiment, the electrode supply unit 20 may adsorb electrodes e1 and e2 by the adsorption unit 25 while positioned close to the electrodes e1 and e2 loaded in the electrode magazine 60. In this state, the electrode supply unit 20 can extract electrodes e1 and e2 from the electrode magazine 60 and supply them to the electrode holder 40.

[0075] However, in this disclosure, the device for picking up electrodes e1 and e2 is not limited to the adsorption unit 25. A separate clamping component may also be provided to pick up electrodes e1 and e2.

[0076] Electrode clamp 40 can be accommodated in alignment box 50 while clamping electrodes e1 and e2, thereby allowing electrodes e1 and e2 to be stacked alternately. Electrode clamp 40 may include a first electrode clamp 41 clamping the first electrode e1 and a second electrode clamp 42 clamping the second electrode e2. Multiple first electrode clamps 41 and multiple second electrode clamps 42 may be provided respectively. According to one embodiment, electrode clamp 40 can support at least one edge of electrodes e1 and e2 (see reference). Figure 8a and Figure 8b In this way, the diaphragm pressurization section 35, described later, can pressurize electrodes e1 and e2.

[0077] As described below, the first electrode clamp 41 and the second electrode clamp 42 can be brought close to each other while facing each other through the separator SP, and stacked along the height direction (Z-axis). The structure for manufacturing a secondary battery using the electrode clamp 40 will be described below.

[0078] The alignment box 50 may include an alignment space S in which a plurality of first electrodes e1 and a plurality of second electrodes e2 are stacked with a separator SP in between to form an electrode assembly EA. As described below, the first electrodes e1 and the second electrodes e2 can be stacked with the separator SP in between as the electrode clamp 40 is inserted into the interior of the alignment box 50. Additionally, the secondary battery manufacturing apparatus 1 according to an embodiment of the present disclosure may further include a separator clamp 34 for clamping and guiding the separator SP to the alignment box 50. The separator clamp 34 clamps one end of the initially supplied separator SP and moves toward the alignment space S of the alignment box 50, thereby guiding the separator SP. Specifically, the separator clamp 34 clamps one end of the separator SP and moves toward the alignment box 50, thereby causing the separator SP to extend toward the alignment box 50. Here, one end of the separator SP refers to the end portion of the separator SP initially provided by the separator supply device 10, which may mean the end of the supplied separator SP positioned close to the alignment box 50.

[0079] As described below, the separator clamp 34 can move in a direction close to (-Z-axis) or away from (+Z-axis) the alignment box 50 to adjust the tension generated when the electrode clamp 40 is inserted into the separator SP. According to one embodiment, as described below, when the plurality of first electrode clamps 41 and the plurality of second electrode clamps 42 intersect each other across the separator SP, they can move in a direction away from the alignment box (+Z-axis) to adjust the tension. Furthermore, as described below, the electrode assembly EA stacked in the alignment box 50 can be transferred to an apparatus for subsequent secondary battery manufacturing processes.

[0080] The following is for reference Figures 2 to 7 The process of manufacturing electrode assembly EA by stacking the first electrode e1 and the second electrode e2 is described.

[0081] Figure 2 This is a diagram showing the electrode clamp advancing toward the diaphragm according to one embodiment.

[0082] Reference Figure 2 The plurality of first electrode clamps 41 and the plurality of second electrode clamps 42 can move closer to each other while facing each other through the diaphragm SP. Specifically, the plurality of first electrode clamps 41 can be spaced apart from each other by a predetermined distance in the height direction (Z-axis), and the plurality of second electrode clamps 42 can face the space between the plurality of first electrode clamps 41. Specifically, the plurality of second electrode clamps 42 can be arranged between the plurality of first electrode clamps 41 along the extension direction of the diaphragm SP or in the height direction (Z-axis).

[0083] In this state, the multiple first electrode clamps 41 and the multiple second electrode clamps 42 can move in the direction toward the diaphragm SP and bend the diaphragm SP. At this time, the multiple first electrode clamps 41 and the multiple second electrode clamps 42 can bend the diaphragm SP crosswise with respect to each other.

[0084] The term 'crossing' can include a state in which multiple first electrode clamps 41 and multiple second electrode clamps 42 are alternately arranged along the extension direction (Z-axis) of the diaphragm SP, and at least partially overlap each other along the Z-axis (see reference). Figure 2 and Figure 3 In this way, the electrode clamp 40 can push the diaphragm SP from both sides and bend the diaphragm SP into a zigzag shape. For example... Figure 3 As shown, 'aligning to the alignment space in a cross state' can mean that after the multiple first electrode clamps 41 and the multiple second electrode clamps 42 cross each other, they are alternately aligned or set in the alignment space S. In this way, the present disclosure can perform the stacking of the first electrode e1 and the second electrode e2 in the alignment space S.

[0085] Additionally, the meaning of 'bending diaphragm SP' may include moving the electrode clamp 40 toward the diaphragm SP to push the diaphragm SP.

[0086] According to one embodiment, the electrode clamp 40 may protrude a predetermined distance 'a' beyond the electrodes e1 and e2 toward the diaphragm SP. In this way, when the electrode clamp 40 contacts and bends the diaphragm SP, the electrodes e1 and e2 do not directly contact the diaphragm SP, thereby preventing damage to the electrodes e1 and e2. That is, the electrode clamp 40 protrudes further than the electrodes e1 and e2 in the direction toward the diaphragm SP, allowing the end of the electrode clamp 40 to bend the diaphragm SP, rather than the electrodes e1 and e2 bending the diaphragm SP. Specifically, at least one of the plurality of first electrode clamps 41 and the plurality of second electrode clamps 42 may protrude a predetermined distance 'a' beyond the electrodes e1 and e2 toward the diaphragm SP. In other words, according to one embodiment of this disclosure, the end of at least one of the plurality of first electrode clamps 41 and the plurality of second electrode clamps 42 facing the diaphragm SP may protrude a predetermined distance beyond the first electrode e1 or the second electrode e2, respectively, in the direction toward the diaphragm.

[0087] The term 'predetermined distance' can refer to the distance at which electrodes e1 and e2 do not directly contact the diaphragm SP when the electrode clamps 41 and 42 cross. In this way, the ends of the electrode clamps 41 and 42, rather than the electrodes e1 and e2, can contact the diaphragm SP and push it to bend. That is, 'predetermined distance' can mean any distance without specific limitations, as long as it prevents electrodes e1 and e2 from directly contacting the diaphragm SP.

[0088] According to one embodiment, the first electrode clamp 41 may include an upper first electrode clamp 41a and a lower first electrode clamp 41b disposed between the first electrode e1. That is, the upper / lower first electrode clamps 41a and 41b can stably clamp the first electrode e1 like a clamp. Similarly, the second electrode clamp 42 may include an upper second electrode clamp 42a and a lower second electrode clamp 42b disposed between the second electrode e2. That is, the upper / lower second electrode clamps 42a and 42b can stably clamp the second electrode e2 like a clamp.

[0089] On the other hand, as the plurality of first electrode clamps 41 and the plurality of second electrode clamps 42 are arranged crosswise, tension may be applied to the diaphragm SP. According to one embodiment, the speed at which the supply device 10 supplies the diaphragm SP can be adjusted according to the tension applied to the diaphragm SP to counteract the tension applied to the diaphragm SP. Alternatively, according to one embodiment, the diaphragm clamp 34 can move upward (+Z axis) toward the electrode clamp 40 to counteract the tension applied to the diaphragm SP.

[0090] Figure 3 This is a diagram illustrating electrode clamps alternately arranged to be housed in an alignment box according to one embodiment.

[0091] Reference Figure 3 The plurality of first electrode clamps 41 and the plurality of second electrode clamps 42 further advance in a direction toward the diaphragm SP, thereby being arranged alternately with each other along the providing direction or the height direction (Z-axis) of the diaphragm SP. In this way, the plurality of first electrodes e1 and the plurality of second electrodes e2 can be arranged sequentially with respect to each other along the direction of the diaphragm SP. As described above, the plurality of first electrode clamps 41 and the plurality of second electrode clamps 42 can be inserted into the alignment space S of the alignment box 50 in a state in which they are arranged sequentially with respect to each other along the height direction (Z-axis).

[0092] Figure 4 This is a diagram illustrating the diaphragm termination according to one embodiment.

[0093] Reference Figure 4This disclosure may further include a membrane cutter 36 and an adhesive portion AP. According to one embodiment, the membrane cutter 36 can cut the end of the membrane SP housed in the alignment space S. The cut membrane SP will be initially provided as one end in the next manufacturing process of the secondary battery. The adhesive portion AP can be applied to the cut membrane SP for finishing. For example, the adhesive portion AP can be applied to the membrane SP with electrodes e1, e2 inserted by the electrode clamp 40. The adhesive portion AP can also be applied to a portion of the membrane SP adjacent to the uppermost end of the stacked membrane SP for finishing. In the figures, the adhesive portion AP is shown with the electrode clamp 40 in place, but this is only for illustrative purposes. Figure 7 As shown, the adhesive can also be applied to the diaphragm SP for finishing while the electrode clamp 40 is detached.

[0094] On the other hand, refer to Figure 4 Multiple first electrode clamps 41 and multiple second electrode clamps 42 can be accommodated in the alignment space S of the alignment box 50. As described above, during the process of accommodating them into the alignment box 50, the setting error between the first electrode clamps 41 and the second electrode clamps 42 can be adjusted. Specifically, as follows: Figure 9 The plurality of first electrode clamps 41 and the plurality of second electrode clamps 42 can adjust the error in the height direction (Z-axis) and the direction perpendicular to it (X-axis or Y-axis) along the alignment groove 54 of the alignment box 50.

[0095] Figure 5 This is a diagram illustrating pressurization via a diaphragm pressurization component according to one embodiment.

[0096] Reference Figure 5 This disclosure may further include a diaphragm pressurizing section 35 for pressurizing electrodes e1, e2 housed in an alignment box 50. The diaphragm pressurizing section 35 can move toward the alignment box 50, which houses a plurality of first electrode clamps 41 and a plurality of second electrode clamps 42, and pressurize at least one of the electrodes e1, e2, the diaphragm SP, and the electrode clamps 40. Specifically, the diaphragm pressurizing section 35 can press down on the topmost stacked diaphragm SP and pressurize the electrodes e1, e2 disposed therebetween. During this time, the electrode clamps 40 can detach from the alignment space S. In this way, as follows... Figure 6 Even if the electrode clamp 40 disengages from electrodes e1 and e2, it can prevent electrodes e1 and e2 from detaching from the diaphragm SP. Specifically, the diaphragm pressurizing part 35 can pressurize the center portion of electrodes e1 and e2 (see reference). Figure 8a and Figure 8bThe diaphragm pressurizing unit 35 applies pressure to prevent the electrode clamp 40 from being pressurized. In this way, the diaphragm pressurizing unit 35 can directly pressurize the diaphragm SP and electrodes e1 and e2, excluding the electrode clamp 40. As described below, since the electrode clamp 40 is not directly pressurized by the diaphragm pressurizing unit 35, it can be separated from the electrodes e1 and e2 and detached from the outside of the alignment box 50. That is, the diaphragm pressurizing unit 35 can pressurize the upper part while multiple first electrode clamps 41 and multiple second electrode clamps 42 are arranged sequentially along the height direction (Z-axis) with the diaphragm SP in between. The figure shows the diaphragm pressurizing unit 35 pressing the upper diaphragm SP, but this is only for ease of understanding, and this disclosure is not limited thereto. That is, there are no special limitations on the diaphragm pressurizing unit 35 of this disclosure, as long as it can prevent the electrodes e1 and e2 from detaching from the diaphragm SP when the electrode clamp 40 is detached from the diaphragm SP.

[0097] On the other hand, in an embodiment not shown, the diaphragm pressurization unit 35 may include an air blower that pressurizes the electrodes e1 and e2 by injecting compressed air. In this way, damage to components such as the diaphragm SP can be minimized, and the electrodes e1 and e2 can be prevented from detaching from the diaphragm SP when the electrode clamp 40 is disengaged.

[0098] Figure 6 This is a diagram showing the electrode clamp detached according to one embodiment.

[0099] Reference Figure 6 When the electrodes e1 and e2 are pressurized by the diaphragm pressurization section 35, the electrode clamp 40 can be detached from the diaphragm SP.

[0100] According to one embodiment, the plurality of electrode clamps 40 can detach in a direction opposite to the entry direction. In this case, the diaphragm pressurizing part 35 can pressurize electrodes e1 and e2 and prevent electrodes e1 and e2 from detaching from the diaphragm SP. However, this disclosure is not limited to this; the electrode clamps 40 can also detach laterally perpendicular to the entry direction. Furthermore, in an embodiment not shown, the upper / lower first electrode clamps 41a and 41b and the upper / lower second electrode clamps 42a and 42b can detach from the diaphragm SP while being spaced apart from each other along the height direction (Z-axis).

[0101] On the other hand, according to one embodiment, a plurality of first electrode clamps 41 and a plurality of second electrode clamps 42 can be sequentially detached from the lower one. However, this disclosure is not limited thereto.

[0102] Figure 7 This is a diagram illustrating the formation of an electrode assembly in an alignment box according to one embodiment.

[0103] Reference Figure 7It can be seen that the electrode clamp 40 is disengaged from the diaphragm SP, thereby disengaging from the alignment space S. At this time, in the alignment space S, the first electrode e1 and the second electrode e2 are alternately arranged with respect to each other through the diaphragm SP, thereby forming the electrode assembly EA.

[0104] In this disclosure, 'electrode assembly EA' can mean a state in which the first electrode e1 and the second electrode e2 are alternately arranged or stacked with respect to each other through the diaphragm SP. That is, as long as the first electrode e1, the diaphragm SP, and the second electrode e2 are alternately arranged, it can be said to be the electrode assembly of this disclosure.

[0105] In the prior art, electrode assemblies are formed by stacking a separator on the positive electrode, stacking a negative electrode on the separator, stacking a separator on the negative electrode, and then stacking a positive electrode on the separator again. This process is complex and time-consuming. According to this disclosure, since multiple first electrodes e1 and multiple second electrodes e2 are simultaneously stacked in the alignment box 50 with the separator SP in between, the manufacturing time of the secondary battery can be further shortened.

[0106] On the other hand, in an embodiment not shown, the secondary battery manufacturing apparatus 1 of this disclosure may further include a drive component (not shown) for moving the electrode clamp 40. The drive component may include a guide rail for guiding the movement path of the electrode clamp 40. In one embodiment, the guide rail of the drive component can be variably adjusted according to the dimensions of the electrodes e1 and e2. The guide rail may be disposed on both sides of the length direction (Y-axis) of the electrodes e1 and e2 so that their spacing can be adjusted according to the dimensions of the electrodes e1 and e2 while guiding the movement of the electrode clamp 40. Since an electrode assembly can be manufactured, the cost of designing and manufacturing the apparatus can be reduced.

[0107] Figure 8a This is a plan view of the state in which the electrode clamp supports the electrode according to one embodiment. Figure 8b This is a plan view showing the state of the electrode supported by the electrode clamp according to another embodiment. Although Figure 8a and Figure 8b The description is based on the first electrode e1 and the first electrode clamp 41, but it can also be applied to the second electrode e2 and the second electrode clamp 42.

[0108] Simultaneously refer to Figure 8a and Figure 8b The first electrode clamp 41 can be avoided as an adsorption part. Figure 1 The first electrode e1 is supported by the adsorption region Sa of the region where the first electrode e1 is drawn in. That is, since the first electrode clamp 41 receives the first electrode e1 supplied by the first electrode supply section 21 having the adsorption section 25, interference with the adsorption section 25 can be avoided when supporting the first electrode e1.

[0109] Reference Figure 8a The first electrode clamp 41 can support both ends of the first electrode e1 along a length direction (Y-axis) perpendicular to the direction facing the diaphragm SP (X-axis). (Refer to...) Figure 8b The first electrode clamp 41 can support both ends of the first electrode e1 in the direction facing the diaphragm SP (X-axis). As described above, there are no particular limitations on the electrode clamp 40 of this disclosure, as long as it can avoid the adsorption region Sa and support the electrodes e1 and e2. In this case, the first electrode clamp 41 can protrude further than the first electrode e1 in the direction toward the diaphragm SP to protect the first electrode e1.

[0110] Figure 9 This is a perspective view of an alignment box according to one embodiment. Figure 10 This is a plan view showing the state of inserting an electrode clamp into an alignment box according to one embodiment.

[0111] Reference Figure 9 and Figure 10 According to one embodiment, the alignment box 50 may include an alignment groove 54 for inserting the electrode clamp 40. The alignment groove 54 extends elongated along the height direction (Z-axis), which not only guides the electrode clamp 40 to move along the height direction (Z-axis), but also aligns the plurality of first electrode clamps 41 and the plurality of second electrode clamps 42 without misalignment. In this way, the alignment reliability of the first electrode e1 and the second electrode e2 can be ensured.

[0112] Additionally, according to one embodiment, the alignment box 50 can have a shape corresponding to electrodes e1 and e2, thereby preventing deformation of the alignment state of electrodes e1 and e2. In the accompanying drawings, the alignment box 50 is shown as a square shape, but this is merely an example. According to another embodiment, the alignment box 50 can be formed as a long rectangular shape extending along the length direction (Y-axis) to correspond to, for example... Figure 8a and Figure 8b The shapes of electrodes e1 and e2.

[0113] According to one embodiment, the electrode clamp 40 is inserted downward (-Z axis) into the alignment space S along the alignment groove 54, and then a plurality of first electrode clamps 41 can move in one direction (-X axis) away from the diaphragm SP, and a plurality of second electrode clamps 42 can move in another direction (+X axis) away from the diaphragm SP, thereby being disengaged.

[0114] Figure 11 This is a flowchart of a secondary battery manufacturing method according to an embodiment of the present disclosure. Figure 12 It is shown in detail Figure 11 A flowchart of the manufacturing method. (The remaining text is incomplete and likely refers to a separate topic.) Figures 1 to 9 The description of the secondary battery manufacturing apparatus 1 is repeated for the purpose of explanation.

[0115] Simultaneously refer to Figure 11 and Figure 12 The secondary battery manufacturing method disclosed herein may include: a separator supply step S10, supplying a separator SP; an electrode supply step S20, supplying electrodes e1 and e2 to an electrode fixture 40; and a stacking step S30, setting a first electrode fixture 41 and a second electrode fixture 42 in an alignment box 50.

[0116] The diaphragm supply step S10 may include the step of supplying the diaphragm SP from the diaphragm supply device 10 to the alignment box 50. According to one embodiment, the diaphragm supply step S10 may include the step (S11) of the diaphragm clamp 34 holding one end of the diaphragm SP (the initially extracted portion) and the step (S12) of the diaphragm clamp 34 moving toward the alignment box 50 and extending the diaphragm SP. However, this is only one embodiment, and this disclosure may include all methods capable of supplying the diaphragm SP toward the alignment box 50. According to another embodiment, even without the diaphragm clamp 34, the diaphragm supply device 10 can be supplied via its spool 120 (see reference 120). Figure 13 Rotation is used to supply the diaphragm SP.

[0117] In the electrode supply step S20, the electrode supply unit 20 can remove electrodes e1 and e2 stored in the electrode magazine 60 and supply them to the electrode clamp 40. According to one embodiment, the electrode supply step S20 may include the following steps: the electrode supply unit 20 adsorbs the electrodes e1 and e2 loaded in the electrode magazine 60 through the adsorption unit 25 to pick up the electrodes e1 and e2 from the electrode magazine 60 (S21); and supplies the removed electrodes e1 and e2 to the electrode clamp 40, the electrode clamp 40 receiving the electrodes e1 and e2 supplied by the electrode supply unit 20 and clamping them (S22).

[0118] Additionally, according to one embodiment, the electrode supply step S20 may further include a step (S23) of alternately aligning the electrode clamps 40 holding electrodes e1 and e2 on both sides. Specifically, the step S23 of alternately aligning the electrode clamps 40 on both sides of the diaphragm SP may include the following steps: on one side of the diaphragm SP, a plurality of first electrode clamps 41 are spaced apart along the extension direction or height direction (Z-axis); on the other side of the diaphragm SP, a plurality of second electrode clamps 42 are disposed between the plurality of first electrode clamps 41 (see reference). Figure 1 ).

[0119] The stacking step S30 may include the step of alternately stacking electrodes e1 and e2 using electrode clamp 40.

[0120] According to one embodiment, the stacking step S30 may include the following steps: the plurality of first electrode clamps 41 and the plurality of second electrode clamps 42 intersect each other across the diaphragm SP to bend the diaphragm SP into a zigzag shape (S31); and the plurality of first electrode clamps 41 and the plurality of second electrode clamps 42 move toward and align with the alignment box 50, such that the first electrode e1 and the second electrode e2 are alternately stacked across the diaphragm SP (S32). At this time, the plurality of first electrode clamps 41 and the plurality of second electrode clamps 42 may be arranged alternately with each other inside the alignment box 50 along the height direction or the stacking direction (Z-axis).

[0121] In step S31, which involves bending the diaphragm into a zigzag shape, multiple first electrode clamps 41 and multiple second electrode clamps 42 can advance towards the diaphragm SP and push the diaphragm on both sides of the diaphragm SP to bend the diaphragm into a zigzag shape (see reference). Figure 2 Additionally, step S31, which involves bending the diaphragm into a zigzag shape, may further include the following steps: overlapping the first electrode clamp 41 and the second electrode clamp 42 along the height direction (Z-axis). In this state, the first electrode clamp 41 and the second electrode clamp 42 move and are accommodated in the alignment space S of the alignment box 50 (see reference). Figure 3 ).

[0122] Furthermore, the secondary battery manufacturing method of this disclosure may further include a separator finishing step S40, in which the separator SP is cut while the electrode fixture 40 is loaded in the alignment space S, and the cut ends are finished. The separator finishing step S40 may include cutting the separator SP housed in the alignment box 50 using a separator cutter 36, and finishing the cut ends using an adhesive portion AP. However, this disclosure is not limited to this; the step of finishing the separator SP with the adhesive portion AP may be performed after the fixture separation step S50 described later. That is, any step of the separator finishing step S40 that includes the step of cutting the separator SP falls under this disclosure.

[0123] Furthermore, the method for manufacturing a secondary battery disclosed herein may further include a clamp separation step S50 in which the electrode clamp 40 is separated from the separator SP. As described above, the 'electrode assembly EA' described in this disclosure may mean a stack in which the first electrode e1, the separator SP, and the second electrode e2 are stacked alternately.

[0124] In the clamp separation step S50, the first electrode clamp 41 and the second electrode clamp 42, housed in the alignment space S, can detach from the interior of the alignment space S. According to one embodiment, the clamp separation step S50 may include the following steps: the diaphragm pressurizing section 35 applies downward pressure to the uppermost end of the diaphragm SP stacked in the alignment box 50 (S51); and the plurality of first electrode clamps 41 and the plurality of second electrode clamps 42 separate from the electrodes e1, e2 and detach from the alignment box 50 to form the electrode assembly EA (S52).

[0125] In step S51, pressurizing the diaphragm SP can prevent the electrodes e1 and e2 from moving together and deforming their alignment when the electrode clamp 40 is disengaged. In this way, the electrodes e1 and e2 clamped inside the diaphragm SP can be pressurized with a predetermined pressure. The 'predetermined pressure' only needs to be greater than the frictional force generated between electrodes e1 and e2 when the electrode clamp 40 is disengaged, thus preventing deformation of the alignment of electrodes e1 and e2 when the electrode clamp 40 is disengaged.

[0126] In the step of detaching the electrode clamp 40, the electrode clamp 40 can separate from the electrodes e1 and e2 to detach outside the alignment box 50. According to one embodiment, the electrode clamp 40 can detach via the alignment groove 54 of the alignment box 50. The alignment groove 54 can be formed extending along the stacking direction (Z-axis) of the electrodes e1 and e2. Specifically, in Figures 1 to 7 The diagram shows the electrode clamp 40 configured to be smaller than the alignment box 50, but this is merely an example for ease of understanding. Figure 10 As shown, the electrode clamp 40 can have a greater length than the alignment box 50 in at least one direction. In this way, the electrode clamp 40 can be positioned along the height direction (Z-axis) under the guidance of the alignment groove 54. In addition, the electrode clamp 40 can be disengaged from the alignment box 50 through the alignment groove 54.

[0127] Additionally, according to one embodiment, the detachment direction of the electrode clamp 40 can be the opposite direction to the direction in which the electrode clamp 40 moves toward the diaphragm SP in the stacking step S30, that is, it can be the direction away from the diaphragm SP. For example, in the case of multiple first electrode clamps 41, detachment can be in the direction opposite to the direction of movement toward the diaphragm SP (+X-axis) (-X-axis). However, this disclosure is not limited to this, and detachment can of course also be in the vertical direction (Y-axis).

[0128] When the electrode clamp 40 is disengaged, in the alignment space S, a plurality of first electrodes e1 and a plurality of second electrodes e2 can be alternately stacked along the height direction (Z-axis) through a diaphragm SP to form an electrode assembly EA. That is, according to the present disclosure, after the electrode clamp 40 is received in the alignment space S, the electrode clamp 40 is disengaged, thereby allowing the electrode assembly EA to be formed inside the alignment space S.

[0129] As described above, according to this disclosure, multiple first electrodes e1 and multiple second electrodes e2 are simultaneously inserted and stacked, thereby shortening the time required for the stacking process of the electrode assembly.

[0130] On the other hand, according to the diaphragm supply device 10 of this disclosure, the depleted diaphragm SP can be supplied smoothly even without interrupting the manufacturing process, thus further shortening the manufacturing time of the secondary battery. The following description refers to the accompanying drawings.

[0131] Figure 13 This is a perspective view of a diaphragm supply device according to an embodiment of the present disclosure.

[0132] Reference Figure 13 The diaphragm supply device 10 disclosed herein may include: a bobbin support member 110; a plurality of bobbin supports 120 disposed on the bobbin support member 110 to support the wound diaphragm SP; and a first shaft 131 (also referred to as a 'rotation shaft') and a second shaft 132 (also referred to as a 'replacement shaft') disposed on the bobbin support member 110, wherein the first shaft 131 is the rotation center of the plurality of bobbin supports and the second shaft 132 is the rotation center of the bobbin support member 110.

[0133] According to one embodiment of the present disclosure, the separator supply device 10 can supply separator SP to the secondary battery manufacturing apparatus 1. However, the separator supply device 10 of the present disclosure is not limited to the purpose of supplying. Specifically, the separator supply device 10 according to one embodiment of the present disclosure may include: a spool support member 110, including a spool support member 110, which is positioned at the supply location P (refer to...). Figure 14 The supply position is a location where a diaphragm SP is provided for supply, comprising a first surface 110a facing the first surface 110a and a second surface 110b opposite to the first surface 110a; and a plurality of spool supports 120 respectively disposed on the first surface 110a and the second surface 110b to support the diaphragm SP, and at least one of the plurality of spool supports 120 disposed on the supply position P. The spool support member 110 may further include a first shaft 131 and a second shaft 132 intersecting the first shaft 131, and the plurality of spool supports 120 may be rotated with respect to at least one of the first shaft 131 and the second shaft 132 to replace the spool support 120 disposed on the supply position P.

[0134] On the other hand, the meaning of "multiple spool supports 120 rotate about the first axis 131" can include "multiple spool supports 120 rotate about the first axis 131 as an axis of rotation along the circumferential direction of the first axis 131." For example, this meaning can simultaneously include the case where the spool support member 110 is fixed and only the multiple spool supports 120 rotate about the first axis 131, and the case where the multiple spool supports 120 are fixed to the spool support member 110 and the spool support member 110 rotates about the first axis 131. Additionally, the meaning of "multiple spool supports 120 rotate about the second axis 132" can include "multiple spool supports 120 rotate about the second axis 132 as an axis of rotation along the circumferential direction of the second axis 132." For example, this meaning can simultaneously include the case where the spool support member 110 is fixed and only the multiple spool supports 120 rotate about the second axis 132, and the case where the multiple spool supports 120 are fixed to the spool support member 110 and the spool support member 110 rotates about the second axis 132.

[0135] The bobbin support component 110 may include a first surface 110a on which a plurality of bobbin supports 120 are provided, and a second surface 110b opposite to the first surface 110a and also on which a plurality of bobbin supports 120 are provided. A first shaft 131 serving as the rotation center of the plurality of bobbin supports 120 and a second shaft 132 serving as the rotation center of the bobbin support component 110 may be provided on the bobbin support component 110.

[0136] The diaphragm SP can be wound onto the spool holder 120. The spool holder 120 can rotate and supply the wound diaphragm SP to the alignment box 50.

[0137] According to one embodiment, multiple spool supports 120 are provided, and can protrude from at least one of the first surface 110a and the second surface 110b of the spool support member 110. According to one embodiment, the spool supports 120 can protrude in a direction parallel to the first axis 131.

[0138] Multiple spool supports 120 can be arranged adjacent to each other around the first axis 131. The phrase "arranged adjacent to each other with respect to the first axis 131" can include at least one of the following: "multiple spool supports 120 are arranged around the first axis 131" or "multiple spool supports 120 are arranged adjacent to each other circumferentially around the first axis 131". That is, as follows: Figure 14The arrangement of the multiple spool supports 120 is not particularly limited, as long as they are arranged in a configuration that allows rotation around the first axis 131 and replacement of the spool support 120 located at the supply position P. As described above, according to this disclosure, the multiple spool supports 120 can rotate around the first axis 131 and allow for rapid replacement of the depleted diaphragm SP. That is, with this structure, the multiple spool supports can rotate around the first axis 131 to replace the spool support 120 located at the supply position P with another spool support 120 adjacent to the first axis 131. "Replacing the spool support 120 around the first axis 131" can mean that the multiple spool supports 120 rotate around the first axis 131, causing the position of the spool support 120 located at the supply position P to change to the position of another spool support 120 adjacent to the first axis 131 in the circumferential direction. In the figure, the supply position P is located in the -X-axis direction of the first surface 110a, but this is only an example, and the position of the supply position P can be changed. Furthermore, the supply position P can be defined as the relative position of the diaphragm SP supplied by the diaphragm supply device 10. Therefore, as shown in the figure, even if the multiple spool supports 120 or spool support members 110 rotate, the supply position P may remain unchanged.

[0139] Furthermore, according to this disclosure, when the diaphragm SP on the first surface 110a is completely depleted, the spool support member 110 rotates about the second axis 132, and the diaphragm SP can be supplied through the spool bracket 120 located on the second surface 110b. That is, the spool support member 110 rotates about the second axis 132, thereby allowing multiple spool brackets 120 to rotate about the second axis 132. According to one embodiment, the first axis 131 and the second axis 132 can be orthogonal to each other. That is, the first axis 131 and the second axis 132 can be arranged in directions perpendicular to each other. Specifically, the first axis 131 can be parallel to the direction (Y-axis) traversing the first surface 110a and the second surface 110b or the protruding direction of the spool bracket 120, and the second axis 132 can be a direction perpendicular to said direction (Y-axis) (Z-axis).

[0140] On the other hand, although the first surface 110a and the second surface 110b are indicated in this disclosure, this does not mean a surface at a specific location, but should be understood as a surface relative to the supply position P. If the spool support member 110 is rotated about the second axis 132 so that the second surface 110b faces the supply position P, then the second surface 110b can be referred to as the first surface 110a.

[0141] Furthermore, in this disclosure, it is sufficient for multiple spool supports 120 or spool support components 110 to rotate around at least one of the first axis 131 and the second axis 132 as a reference; it is not necessary to include both the first axis 131 and the second axis 132 simultaneously. A detailed explanation follows.

[0142] The following is for reference Figure 14 and Figure 15 The diaphragm supplementary structure is described in detail.

[0143] Figure 14 This is a diagram illustrating rotation about a first axis to supplement the diaphragm according to one embodiment. (Refer to...) Figure 14 The diaphragm supply device 10 can supply diaphragms SP located at the supply position P. At least one of the plurality of spool supports 120 can be located at the supply position P. According to one embodiment, when the diaphragm SP located at the supply position P is depleted and needs to be replaced, the plurality of spool supports 120 rotate about a first axis 131, and another spool support 120 adjacent in the circumferential direction can be positioned at the supply position P.

[0144] That is, multiple spool supports 120 rotate around a first axis 131, and the spool support located at the supply position P can be replaced by another spool support 120 adjacent in the circumferential direction. As described above, the multiple spool supports 120 wound with the separator SP rotate around the first axis 131, causing the spool support 120 with almost depleted separator SP to detach from the supply position P, and another spool support 120 adjacent in the circumferential direction and wound with separator SP can be moved to the supply position P to supply separator SP. That is, the spool support 120 located at the supply position P can be rotated and replaced around the first axis 131. With this revolve structure, the separator SP can be replaced immediately even when it is depleted. As described above, since the time interrupted during the secondary battery manufacturing process to replenish the separator is minimized, the manufacturing time of the secondary battery can be shortened.

[0145] On the other hand, in this disclosure, 'supply position P' can mean the location where the diaphragm SP is supplied to other devices such as the secondary battery manufacturing apparatus 1. That is, the figure shows that the supply position P is located at the 9 o'clock position clockwise with reference to the first axis 131, but this disclosure is not limited to this, and it can also be located at the 6 o'clock position or between the 9 o'clock and 6 o'clock positions. In addition, when the diaphragm SP is supplied from multiple locations, multiple supply positions P can be formed. In other words, the supply position P in this disclosure does not mean a specific location, but rather the location or area where the diaphragm SP is unwinding from the spool support 120. Specifically, the supply position P can face the alignment box 50 in a predetermined direction.

[0146] On the other hand, the figure shows that the spool support member 110 is fixed with the first axis 131 as a reference, but this disclosure is not limited thereto, and the spool support member 110 itself can rotate with the first axis 131 as a reference.

[0147] Figure 15 This is a diagram illustrating rotation about a second axis to supplement the diaphragm according to one embodiment. (Refer to...) Figure 15 The spool support component 110 disclosed herein can rotate with respect to the second axis 132 and replace multiple spool supports 120 at once.

[0148] According to one embodiment, the spool support member 110 can rotate about a second axis 132 so that the second surface 110b faces the supply position P, thereby allowing the positions of the first surface 110a and the second surface 110b to change relative to each other. In this way, at least one of the plurality of spool supports 120 disposed on the second surface 110b can be disposed at the supply position P.

[0149] Specifically, when the diaphragm SP of the plurality of spool supports 120 located on the first surface 110a is completely or almost exhausted, the spool support member 110 can rotate about the second axis 132. That is, the spool support member 110 can rotate about the second axis 132, causing the positions of the first surface 110a and the second surface 110b to change relative to each other. In other words, the plurality of spool supports 120 can rotate about the second axis 132 to change relative to each other. In this way, the plurality of spool supports 120 with the diaphragm SP completely or almost exhausted can be arranged facing the opposite side of the supply position P, while the plurality of spool supports 120 with the diaphragm SP wound can be arranged facing the supply position P. At this time, while the supply position P supplies the diaphragm SP wound on the spool support 120 of the second surface 110b, the replenishment of the diaphragm SP can be performed on the spool support 120 of the first surface 110a, which is arranged facing the opposite side of the supply position P. In this way, in the diaphragm supply device 10 of this disclosure, one of the first surface 110a and the second surface 110b is arranged facing the supply position P to perform the supply of the diaphragm SP, while the other surface can be arranged facing the opposite side of the supply position P to perform the replenishment of the diaphragm SP.

[0150] In other words, the diaphragm SP is supplied on the first side 110a facing the supply position P, and the replacement or replenishment of the depleted diaphragm SP can be performed on the second side 110b opposite to it.

[0151] As described above, the diaphragm supply device 10 of this disclosure can be rotated via the first shaft 131 to replace the spool support 120 located on one surface 110a, 110b, and can be rotated via the second shaft 132 to interchange the positions of the first surface 110a and the second surface 110b. Through this dual-rotation structure, the diaphragm supply device 10 of this disclosure continuously replenishes the diaphragm SP without the need for a waiting time for replenishment, thus shortening the manufacturing time of the secondary battery.

[0152] Additionally, refer to again Figure 13The first shaft 131 can protrude from at least one of the first surface 110a and the second surface 110b of the spool support member 110. Additionally, the second shaft 132 can protrude from the spool support member 110 in a direction perpendicular to the first shaft 131. Specifically, the second shaft 132 can protrude between the first surface 110a and the second surface 110b in a direction perpendicular to the protrusion direction of the first shaft 131.

[0153] On the other hand, the first axis 131 and the second axis 132 of this disclosure can be as follows: Figure 13 The prominent physical shape shown can also be as follows: Figure 16 The dotted lines indicate that the first axis 131 and the second axis 132 can be defined as the rotation center of the plurality of spool supports 120 or spool support members 110, and do not necessarily have to include a physical shape. That is, in this disclosure, the first axis 131 and the second axis 132 are shown as protruding from the spool support member 110, but this is only one embodiment, and it is not particularly limited as long as it can provide the rotation center of the plurality of spool supports 120. For example, the first axis 131 and the second axis 132 of this disclosure can be virtual axes arranged in directions that intersect each other. Detailed description is provided with reference to the accompanying drawings.

[0154] Figure 16 This is a perspective view of a diaphragm supply device according to another embodiment of the present disclosure. The diaphragm supply device 100 according to another embodiment of the present disclosure is omitted to illustrate that the first axis 131 and the second axis 132 can be virtual axes. Figures 13 to 15 The content described herein is repeated.

[0155] According to another embodiment of this disclosure, the diaphragm supply device 100 may include a first axis 131 (dashed line) and a second axis 132 (dashed line). The first axis 131 may be a virtual axis defined as the rotation center axis of the plurality of spool supports 120, and the second axis 132 may be a virtual axis defined as the rotation center axis of the spool support member 110. That is, the first axis 131 may be an axis passing through the rotation center of the plurality of spool supports 120, and the second axis 132 may be an axis passing through the rotation center of the spool support member 110.

[0156] The foregoing has described various embodiments of the present invention, but the scope of the present invention is not limited thereto. It will be apparent to those skilled in the art that various modifications and changes can be made without departing from the technical concept of the present invention as described in the claims. In the above embodiments, some components may be deleted, or the embodiments may be combined with each other.

[0157] The above description is merely an example of applying the principles of this disclosure, and other configurations may be included without departing from the scope of this disclosure.

Claims

1. A diaphragm supply device for supplying diaphragms, characterized in that, include: A bobbin support component includes a first surface facing a supply position and a second surface opposite to the first surface, the supply position being the location where the diaphragm for supply is disposed; as well as Multiple spool supports are disposed on at least one of the first and second surfaces to support the diaphragm, and at least one of the multiple spool supports is disposed at the supply position. The bobbin support component further includes a first shaft and a second shaft intersecting the first shaft. The plurality of spool supports rotate with reference to at least one of the first axis and the second axis to replace the spool support located at the supply position.

2. The diaphragm supply device according to claim 1, characterized in that, The plurality of spool supports are arranged adjacent to each other around the first axis in at least one of the first and second surfaces.

3. The diaphragm supply device according to claim 2, characterized in that, The plurality of spool supports rotate about the first axis to replace the spool support located at the supply position with another spool support arranged adjacent to it.

4. The diaphragm supply device according to any one of claims 1 to 3, characterized in that, The plurality of spool supports protrude from at least one of the first and second faces parallel to the first axis.

5. The diaphragm supply device according to any one of claims 1 to 3, characterized in that, The plurality of spool support components rotate about the second axis so that the second surface faces the supply position, thereby causing the plurality of spool supports to rotate about the second axis.

6. The diaphragm supply device according to any one of claims 1 to 3, characterized in that, The first axis and the second axis are orthogonal to each other.

7. The diaphragm supply device according to any one of claims 1 to 3, characterized in that, The plurality of spool supports are arranged adjacent to each other in a circumferential direction around the first axis.

8. The diaphragm supply device according to any one of claims 1 to 3, characterized in that, The first shaft protrudes from at least one of the first and second surfaces of the bobbin support member. The second shaft protrudes from the spool support member in a direction perpendicular to the first shaft.

9. The diaphragm supply device according to any one of claims 1 to 3, characterized in that, The first axis is a virtual axis defined as the rotation center axis of the plurality of spool supports, and the second axis is a virtual axis defined as the rotation center axis of the spool support component.

10. A diaphragm supply device for supplying diaphragms, characterized in that, include: A spool support component includes a supply position, which is a position where a diaphragm for supply is disposed; as well as Multiple spool supports support the diaphragm, and at least one of the multiple spool supports is disposed at the supply position. The plurality of spool supports rotate about a first axis to replace the spool support located at the supply position.

11. The diaphragm supply device according to claim 10, characterized in that, The plurality of spool supports are arranged adjacent to each other around the first axis on at least one side of the spool support member.

12. The diaphragm supply device according to claim 10 or 11, characterized in that, The first axis is a virtual axis defined as the rotation center axis of the plurality of spool supports.

13. A diaphragm supply device for supplying diaphragms, characterized in that, include: A bobbin support component includes a first surface facing a supply position and a second surface opposite to the first surface, the supply position being the location where the diaphragm for supply is disposed; as well as Multiple spool supports support the diaphragm and are disposed on at least one of the first and second surfaces, with at least one of the multiple spool supports located at the supply position. The bobbin support component includes a second shaft, which is arranged in a direction perpendicular to the direction toward the first surface and the second surface. The spool support component rotates about the second axis so that the second surface faces the supply position, thereby changing the positions of the first surface and the second surface relative to each other.

14. The diaphragm supply device according to claim 13, characterized in that, The spool support component rotates such that at least one of the plurality of spool supports disposed on the second surface is positioned at the supply position.

15. The diaphragm supply device according to claim 13 or 14, characterized in that, The second axis is a virtual axis defined as the rotation center axis of the spool support component.

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