Electrode cutting device for all-solid-state battery

Abstract

The present invention relates to an electrode cutting device for an all-solid-state battery and, more specifically, comprises: an upper cutting part including an upper knife holder and an upper knife; an upper knife adjustment part adjacent to a side surface of the upper knife; and a lower knife, wherein the upper knife holder includes a protrusion part to be coupled to the upper knife and the upper knife includes an escape hole in which the protrusion part is accommodated, the protrusion part including a head part and a shoulder part, wherein the width of the head part is greater than the width of the shoulder part.

Description

Electrode cutting device for all-solid-state batteries

[0001] The present invention relates to an electrode cutting device, and more particularly, to an electrode cutting device for an all-solid-state battery that reduces the risk of detachment from a phase change holder when replacing a phase change electrode.

[0002]

[0003] All-solid-state batteries, unlike lithium-ion batteries, utilize solid electrolytes, leading to changes in the electrode material. Consequently, all-solid-state batteries are replacing copper (Cu) with SUS as the anode substrate to reduce reactivity with the electrolyte. While aluminum (Al) is used as the cathode substrate, SUS, the anode substrate, has a tensile strength more than three times that of Al, requiring high shear force when shearing the anode plate. However, the brittleness of the coating applied to the anode plate limits the increase in shear force. Therefore, a cutting technology for all-solid-state batteries that minimizes shear load is required.

[0004]

[0005] The problem to be solved by the present invention is to provide an electrode cutting device for an all-solid-state battery that reduces the risk of detachment when replacing a surface.

[0006] Another problem to be solved by the present invention is to provide an electrode cutting device for an all-solid-state battery that increases the clearance between the upper and lower layers by adjusting the upper layer through incomplete bonding of the upper layer holder and the upper layer and lateral pressure.

[0007]

[0008] According to the concept of the present invention, an electrode cutting device for an all-solid-state battery comprises an upper cutting portion including a top coat holder and a top coat; a top coat adjusting portion adjacent to a side of the top coat; and a lower portion, wherein the top coat holder includes a protrusion for coupling to the top coat, the top coat includes an escape hole for receiving the protrusion, and the protrusion includes a head portion and a shoulder portion, and a width of the head portion may be greater than a width of the shoulder portion.

[0009] According to another concept of the present invention, an electrode cutting device for an all-solid-state battery comprises: an upper cutting portion including a top coat holder and a top coat; a top coat adjusting portion located on a side of the top coat; and a lower portion, wherein the top coat holder includes a first protrusion and a second protrusion for coupling to the top coat, and the top coat includes a first escape hole for accommodating the first protrusion and a second escape hole for accommodating the second protrusion, wherein the first protrusion and the second protrusion are located on different planes, and the first escape hole and the second escape hole can be located on different planes.

[0010]

[0011] The present invention includes a top plate holder including a protrusion and a top plate including an escape hole, thereby reducing detachment when replacing the top plate and enabling easy replacement of the top plate along the protrusion.

[0012] The electrode cutting device for an all-solid-state battery according to the present invention can increase the clearance between the upper and lower layers by incomplete bonding of the upper layer holder and the upper layer.

[0013]

[0014] Figure 1 is a drawing showing a fastening state of an electrode cutting device for an all-solid-state battery according to embodiments of the present invention.

[0015] FIG. 2 is a perspective view showing a top view of an electrode cutting device for an all-solid-state battery according to embodiments of the present invention.

[0016] FIGS. 3, 4, 9, and 12 are side views of a drawing according to embodiments of the present invention.

[0017] FIGS. 5, 6, 10, and 13 are side views of a surface holder according to embodiments of the present invention.

[0018] FIG. 7, FIG. 8, FIG. 11 and FIG. 14 are side views showing the state of the combination of the surface holder and the surface according to embodiments of the present invention.

[0019] FIG. 15 is a drawing showing a fastening state of an electrode cutting device including a stripper according to embodiments of the present invention.

[0020] Figures 16 and 17 are conceptual diagrams briefly illustrating an electrode cutting process of an electrode cutting device according to embodiments of the present invention.

[0021]

[0022] To fully understand the structure and effects of the present invention, preferred embodiments of the present invention will be described with reference to the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but can be implemented in various forms and subject to various modifications. However, the description of these embodiments is provided solely to ensure a complete disclosure of the present invention and to fully inform those skilled in the art of the invention of the scope of the invention.

[0023] In this specification, when a component is referred to as being on another component, it means that it can be formed directly on the other component, or a third component may be interposed between them. Furthermore, in the drawings, the thicknesses of the components are exaggerated for the sake of clarity. Parts designated by the same reference numerals throughout the specification represent the same components.

[0024] Unless otherwise specified herein, the singular may also include the plural. Furthermore, unless otherwise specified, "A or B" may mean "including A, including B, or including A and B." As used herein, "comprises" and / or "comprising" do not exclude the presence or addition of one or more other components.

[0025] As used herein, “combination thereof” may mean mixtures, laminates, composites, copolymers, alloys, blends, and reaction products of the components.

[0026]

[0027] FIG. 1 is a drawing showing a connection state of an electrode cutting device for an all-solid-state battery according to embodiments of the present invention. Referring to FIG. 1, the electrode cutting device may include an upper cutting part (UKP), a top coat adjusting part (UKAP), and a lower coat (LK). The top coat adjusting part (UKAP) may be coupled to the upper cutting part (UKP) or may be positioned separately. The upper cutting part (UKP) may include a top coat holder (UKH) and a top coat (UK). The top coat holder (UKH) and the top coat (UK) may be integrally coupled. The top coat holder (UKH) and the top coat (UK) may be incompletely coupled. The top coat holder (UKH) coupled to the top coat (UK) may be driven up and down.

[0028] An electrode supply unit (ES), which will be described later in Fig. 16, may be positioned on the side of the lower part (LK). The electrode supply unit (ES) serves to continuously supply electrodes. The electrodes (EP) supplied from the electrode supply unit (ES) can be cut at regular intervals by the upper cutting unit (UKP) that moves up and down and the fixed lower part (LK).

[0029] The UK blade, which serves as a knife for delivering electrodes, can be positioned at the top of the electrode cutting device. The UK blade can be moved up and down to contact the LK blade. The UK blade can be moved up and down along a guide. The UK blade can move up and down to cooperate with the LK blade to cut the electrode.

[0030] The topcoat (UK) can be coupled to the topcoat holder (UKH). The topcoat holder (UKH) and the topcoat (UK) can be imperfectly coupled. The imperfect coupling means that the topcoat holder (UKH) and the topcoat (UK) are not completely tightly coupled. The incomplete coupling may be a state in which the bolts coupling the topcoat holder (UKH) and the topcoat (UK) are not completely tightened. For example, the incomplete coupling may be a state in which the bolts coupling the topcoat holder (UKH) and the topcoat (UK) are loosened once or twice in the opposite direction of the tightening direction while being fully tightened. The topcoat holder (UKH) and the topcoat (UK) can be coupled with bolts, and the protrusions (PJP) attached to the topcoat holder (UKH) and the holes formed in the topcoat (UK) can be brought into contact and coupled.

[0031] As the top coat holder (UKH) and the top coat (UK) are incompletely joined, the top coat (UK) can be adjusted vertically with respect to the bottom coat (LK) by the top coat adjusting unit (UKAP). The top coat adjusting unit (UKAP) can apply lateral pressure to the side of the top coat (UK) to increase the clearance between the top coat (UK) and the bottom coat (LK). Clearance represents the adhesion between the top coat (UK) and the bottom coat (LK).

[0032] The UK blade can be shaped so that the width on both sides of the lower blade portion is large and the blade narrows toward the center in the longitudinal direction. In other words, the lower blade portion of the UK can form a blade that slopes upward toward the center in the longitudinal direction of the UK. The reason for configuring it in this way may be to increase the shear angle of the part (both sides) that first comes into contact with the electrode during electrode cutting. Increasing the shear angle facilitates pressure distribution on both sides of the blade portion, which can prevent the electrode from being torn or damaged.

[0033] The lower blade (LK) is a knife that engages with the upper blade (UK) to cut the electrode and can be located at the bottom of the electrode cutting device. Unlike the upper blade (UK) that moves up and down along a guide, the lower blade (LK) can be fixed in place. Unlike the upper blade (UK), the lower blade (LK) may not be equipped with a separate lower blade holder, but this is not necessarily limited to this, and a device for fixing the lower blade (LK), such as a lower frame, can be added.

[0034] The UKH can serve to fix the UK and support the UK cutting part (UKP) so that it can slide up and down. The UKH can fix the UK while moving it up and down along a guide. The UKH can be positioned above the UK and can be larger than the UK.

[0035] The UKAP may include a UKA and a cylinder (CD). The UKAP may be positioned on the side of the UK. The lower line (LK) may be positioned on one side of the UK, and the UKA may be positioned on the other side.

[0036] The UKA can fine-tune the clearance and perpendicularity of the UK to the lower coat (LK) within tolerance. The clearance between the UK and the lower coat can be a factor affecting electrode quality. The UKA can apply lateral pressure to the side of the UK to align the UK with the lower coat (LK). The applied lateral pressure aligns the UK perpendicular to the lower coat (LK), increasing the clearance and thus increasing the electrode cutting force, which can ultimately improve electrode quality.

[0037]

[0038] FIG. 2 is a perspective view of a top view (UK) of an electrode cutting device for an all-solid-state battery according to embodiments of the present invention. Referring to FIG. 14, the top view (UK) may include a coupling hole (CH) and a escape hole (RCH).

[0039] The coupling hole (CH) is a hole formed on the upper part of the upper part (UK) and may be a hole fastened with a bolt. The coupling hole (CH) may include 2 to 6 holes. The coupling hole (CH) may be fastened in a tab-through or hole-through manner depending on the direction in which the bolt is fastened.

[0040] The escape hole (RCH) can prevent the UK from coming off when the UK is replaced and can play a role in engaging with the protrusion (PJP) of the UK holder (UKH), which will be described later. As illustrated in Fig. 2, the escape hole (RCH) may be recessed in a direction opposite to the direction in which it is coupled with the UK holder (UKH), forming a step. The escape hole (RCH) may be located below the coupling hole (CH).

[0041] The escape hole (RCH) and protrusion (PJP) can serve as a guide and positioning restraint when replacing the UK. The escape hole (RCH) and protrusion (PJP) can facilitate the removal and replacement of the UK from the UK holder (UKH) when replacing the UK, and can reduce the use of accessories.

[0042]

[0043] Fig. 3 illustrates a side view of a top plate (UK). Referring to Fig. 3, the top plate (UK) may include a coupling hole (CH) and a escape hole (RCH). The escape hole (RCH) may be positioned in a direction opposite to a first direction (D1) of the coupling hole (CH). The coupling hole (CH) may be a hole for fixing the top plate holder (UKH) and the top plate (UK).

[0044] The escape hole (RCH) may be formed in a third direction (D3) from the side of the top view (UK) based on FIG. 3. The escape hole (RCH) may be formed to engage with the protrusion (PJP) of the top view holder (UKH), which will be described later. The escape hole (RCH) may have the same shape as the protrusion (PJP). In addition, the escape hole (RCH) may have a shape that is not the same as the protrusion (PJP). The width (RCHWD) of the escape hole may be equal to or greater than the width (PJPWD) of the protrusion, which will be described later.

[0045] Referring to FIG. 3, the top coat (UK) may include a top coat land portion (UKL). The top coat land portion (UKL) is located at the lowermost portion of the top coat (UK) and is a portion that contacts the lower coat (LK). The top coat land portion (UKL) may be the same thickness as the top coat (UK) or may be thinner than the thickness of the top coat (UK). As the length of the top coat land portion (UKL) increases, detachment may increase when the electrode is cut. The top coat land portion (UKL) may have a length of 0.5 mm to 7 mm, 0.5 mm to 5 mm, or 0.5 mm to 2.5 mm.

[0046] The coupling hole (CH) can be joined by bolting the top plate (UK) and the top plate holder (UKH). When the coupling hole (CH) is bolted, a complete connection is defined as a state in which the bolt is fully tightened. Conversely, a state in which the bolt is not fully tightened but is somewhat loosened is defined as an incomplete connection.

[0047] The escape hole (RCH) can serve as a guide to facilitate replacement of the UK and to secure the UK in the vertical direction. The escape hole (RCH) can be a portion to which a protrusion (PJP) located on the UK holder (UKH) is coupled.

[0048] The topcoat (UK) can be coupled to the topcoat holder (UKH) by means of the coupling hole (CH) and the escape hole (RCH). In the case of a complete coupling, the coupling hole (CH) and the escape hole (RCH) can be completely and tightly coupled by means of the bolt and the projection (PJP), respectively. On the other hand, in the case of an incomplete coupling, the escape hole (RCH) can be tightly coupled, but the coupling hole (CH) may not be tightly coupled. Furthermore, in the case of an incomplete coupling, neither the coupling hole (CH) nor the escape hole (RCH) may be tightly coupled.

[0049]

[0050] FIG. 4 is a cross-sectional view of a escape hole (RCH) according to embodiments of the present invention. The escape hole (RCH) may be a portion that comes into contact with a protrusion (PJP) located on a top surface holder (UKH). Referring to FIG. 4, the escape hole (RCH) may have a concavely curved cross-section. Additionally, the escape hole (RCH) may have a non-curved cross-section, as illustrated in FIG. 3. When the cross-section of the escape hole (RCH) is concavely curved, the width (RCHWD) of the escape hole may be the smallest at a portion located at a surface that comes into contact with the top surface holder (UKH). The surface that comes into contact with the top surface holder (UKH) may be a surface located in a direction opposite to the third direction (D3) based on FIG. 4.

[0051] The width of the escape hole (RCHWD) may gradually increase in the third direction (D3) and then decrease again. The width of the escape hole (RCHWD) may be greater than or less than the width of the protrusion (PJPWD) described later. The minimum width of the escape hole (RCH) may be equal to or greater than the minimum width of the protrusion (PJP). This is because, if the minimum width of the escape hole (RCH) is less than the minimum width of the protrusion (PJP), the escape hole (RCH) and the protrusion (PJP) may not engage with each other.

[0052] Although not shown in Fig. 4, a coupling hole (CH) may be located above the escape hole (RCH) as in Fig. 3. The illustration of the coupling hole (CH) is omitted below.

[0053]

[0054] Fig. 5 illustrates a side view of a surface holder (UKH) according to an embodiment of the present invention. Referring to Fig. 5, the surface holder (UKH) may include a protrusion (PJP). The surface holder (UKH) may include a protrusion (PJP) at a portion that contacts the surface (UK).

[0055] The protrusion (PJP) can be interlocked with the escape hole (RCH) of the topcoat (UK) and connected to each other. The protrusion (PJP) can serve to temporarily fix the topcoat (UK) by interlocking with the escape hole (RCH) of the topcoat (UK). The protrusion (PJP) can have a constant width. In addition, the protrusion (PJP) can have a non-constant width and can include a head portion (HDP) and a shoulder portion (SDP). The protrusion (PJP) can be a portion that protrudes in a third direction (D3). The protrusion (PJP) can have a shape in which the width increases as it goes in the third direction (D3). This may be to prevent movement in the third direction (D3) when the topcoat (UK) and the topcoat holder (UKH) are temporarily connected. The movement of the upper part (UK) in the third direction (D3) can be prevented, thereby making it easier to remove or replace the lower part (UK) from the upper part holder (UKH). The protrusion (PJP) can be made of the same material as the upper part holder (UKH).

[0056] The head portion (HDP) may be the most protruding portion of the protrusion portion (PJP). The head portion (HDP) may be located in the third direction (D3) of the protrusion portion (PJP) based on Fig. 5. The head portion (HDP) may be a portion that comes into contact with the innermost portion of the escape hole (RCH) of the top coat (UK). The innermost portion of the escape hole (RCH) may mean the end portion in the third direction (D3). The head portion (HDP) may be made of the same material as the top coat holder (UKH).

[0057] The shoulder portion (SDP) may be a portion located on the inside of the protrusion portion (PJP). The shoulder portion (SDP) may be located in a direction opposite to the third direction (D3) of the protrusion portion (PJP) based on Fig. 5. The shoulder portion (SDP) may be a portion that contacts the outermost portion of the escape hole (RCH) of the topcoat (UK). The outermost portion of the escape hole (RCH) may mean an end portion in a direction opposite to the third direction (D3). The shoulder portion (SDP) may be made of the same material as the topcoat holder (UKH).

[0058]

[0059] FIG. 6 is a drawing showing the width (HDPWD) of the head portion and the width (SDPWD) of the shoulder portion according to an embodiment of the present invention. Referring to FIG. 6, the width (HDPWD) of the head portion may be larger than the width (SDPWD) of the shoulder portion. When looking at the cross-section of the protrusion (PJP), the cross-section of the protrusion (PJP) illustrated in FIGS. 5 and 6 may have a trapezoidal shape. When the cross-section of the protrusion (PJP) is trapezoidal, the width (HDPWD) of the head portion may be equal to the length of the long side of the trapezoid. In addition, when the cross-section of the protrusion (PJP) is trapezoidal, the width (SDPWD) of the shoulder portion may be equal to the length of the short side of the trapezoid.

[0060] Referring to Fig. 6, the maximum width of the protrusion (PJP) may be the long side of the trapezoid. The maximum width of the protrusion (PJP) may be equal to the width of the head (HDPWD). In addition, the minimum width of the protrusion (PJP) may be equal to the short side of the trapezoid. The minimum width of the protrusion (PJP) may be equal to the width of the shoulder (SDPWD).

[0061] The width of the escape hole (RCHWD) relative to the width of the protrusion may be in the range of 0.3 to 1, 0.5 to 1, or 0.5 to 0.8. In addition, the width of the escape hole (RCHWD) relative to the width of the head portion (HDPWD) may be in the range of 0.3 to 1, 0.5 to 1, or 0.5 to 0.8. In addition, the width of the escape hole (RCHWD) relative to the width of the shoulder portion (SDPWD) may be in the range of 0.3 to 1, 0.5 to 1, or 0.5 to 0.8.

[0062]

[0063] FIG. 7 is a side view showing a state in which a topcoat holder (UKH) and a topcoat (UK) are coupled according to embodiments of the present invention. Referring to FIG. 7, a protrusion (PJP) located on the topcoat holder (UKH) and a escape hole (RCH) located on the topcoat (UK) may be interlocked and coupled with each other. At this time, the width (SDPWD) of the shoulder portion of the protrusion (PJP) may be equal to or smaller than the width (RCHWD) of the escape hole. This may be to easily separate the topcoat (UK) from the topcoat holder (UKH) along the protrusion (PJP) when replacing the topcoat (UK). Referring to FIG. 7, the cross-sectional area of ​​the escape hole (RCH) may be larger than the cross-sectional area of ​​the protrusion (PJP). This is because, if the cross-sectional area of ​​the escape hole (RCH) and the cross-sectional area of ​​the protrusion (PJP) are equal to or smaller than the size of the escape hole (RCH), the size of the protrusion (PJP) may be larger than the size of the escape hole (RCH), and the topcoat holder (UKH) and the topcoat (UK) may not be easily combined.

[0064]

[0065] Fig. 8 is a side view showing a state in which a top holder (UKH) and a top (UK) are combined according to embodiments of the present invention. As illustrated in Fig. 8, the cross-section of the protrusion (PJP) may be heptagonal. In addition, the protrusion (PJP) may be pentagonal, hexagonal, or octagonal. The protrusion (PJP) may be polygonal. The protrusion (PJP) may also have a circular shape. Referring to Fig. 8, the maximum width of the protrusion (PJP) may be equal to the width (HDPWD) of the head portion.

[0066]

[0067] FIG. 9 is a side view of a UK according to an embodiment of the present invention. Referring to FIG. 9, the UK may include a first escape hole (RCH1) and a second escape hole (RCH2). The first escape hole (RCH1) may accommodate a first protrusion (PJP1). Additionally, the second escape hole (RCH2) may accommodate a second protrusion (PJP2).

[0068] The first escape hole (RCH1) and the second escape hole (RCH2) may be located on different planes. The first escape hole (RCH1) may be located on the first side (SD1) of the upper surface (UK). The second escape hole (RCH2) may be located on the second side (SD2) of the upper surface (UK). The first side (SD1) and the second side (SD2) may be on different planes.

[0069] The first escape hole (RCH1) can be interlocked with the first protrusion (PJP1) to prevent the top plate (UK) from being dislodged in the third direction (D3). The second escape hole (RCH2) can be interlocked with the second protrusion (PJP2) to prevent the top plate (UK) from being dislodged in the first direction (D1). Therefore, the first escape hole (RCH1) and the second escape hole (RCH2) can prevent the top plate (UK) from being dislodged in the up, down, left, and right directions.

[0070] The first side (SD1) and the second side (SD2) may be non-congruent planes. The normal of the first side (SD1) may be parallel to the first direction (D1). In addition, the normal of the second side (SD2) may be parallel to the third direction (D3). The normal of the first side (SD1) and the normal of the second side (SD2) may be orthogonal to each other, but this is not necessarily limited to the case. The angle formed by the normal of the first side (SD1) and the normal of the second side (SD2) may be within 90°.

[0071]

[0072] FIG. 10 is a side view of a surface holder (UKH) according to an embodiment of the present invention. Referring to FIG. 10, the surface holder (UKH) may include a first protrusion (PJP1) and a second protrusion (PJP2). The first protrusion (PJP1) may be accommodated in a first escape hole (RCH1). In addition, the second protrusion (PJP2) may be accommodated in a second escape hole (RCH).

[0073] The first protrusion (PJP1) and the second escape hole (RCH) may be located on different planes. The first protrusion (PJP1) may be located on the first surface (SD1) where the top surface (UK) and the top surface holder (UKH) are in contact. The second protrusion (PJP2) may be located on the second surface (SD2) where the top surface (UK) and the top surface holder (UKH) are in contact. The first surface (SD1) and the second surface (SD2) may be on different planes.

[0074] The first protrusion (PJP1) can be interlocked with the first escape hole (RCH) to prevent the upper part (UK) from being dislodged in the third direction (D3). The second protrusion (PJP2) can be interlocked with the second escape hole (RCH) to prevent the upper part (UK) from being dislodged in the first direction (D1). Therefore, the first protrusion (PJP1) and the second protrusion (PJP2) can prevent the upper part (UK) from being dislodged in the up, down, left, and right directions.

[0075] The first side (SD1) and the second side (SD2) may be non-congruent planes. The following is as described above.

[0076]

[0077] Fig. 11 is a side view illustrating a state in which a holder (UKH) and a surface (UK) are coupled according to embodiments of the present invention. Referring to Fig. 11, a first protrusion (PJP1) and a first escape hole (RCH1) can be coupled by interlocking with each other. In addition, a second protrusion (PJP2) and a second escape hole (RCH2) can be coupled by interlocking with each other.

[0078]

[0079] Fig. 12 is a side view of a UK according to an embodiment of the present invention. Referring to Fig. 12, the UK may include a first escape hole (RCH1) and a second escape hole (RCH2). Furthermore, the first escape hole (RCH1) and the second escape hole (RCH2) may be located on different planes. The different planes on which the first escape hole (RCH1) and the second escape hole (RCH2) are located may be the same as those described above with reference to Fig. 9.

[0080] The first escape hole (RCH1) may have a concavely curved cross-section. When the cross-section of the first escape hole (RCH1) is concavely curved, the width of the first escape hole (RCH1) may be smallest at the first surface (SD1).

[0081] The first escape hole (RCH1) may gradually increase in the direction opposite to the first direction (D1) and then decrease again. The width of the first escape hole (RCH1) may be greater than or less than the width of the first protrusion (PJP1). The minimum width of the first escape hole (RCH1) may be equal to or greater than the minimum width of the first protrusion (PJP1). This is because, if the minimum width of the first escape hole (RCH1) is less than the minimum width of the first protrusion (PJP1), the first escape hole (RCH1) and the first protrusion (PJP1) may not engage with each other.

[0082] The second escape hole (RCH2) may have a concavely curved cross-section. When the cross-section of the second escape hole (RCH2) is concavely curved, the width of the second escape hole (RCH2) may be smallest at the second surface (SD2).

[0083] The second escape hole (RCH2) may gradually increase in the third direction (D3) and then decrease again. The width of the second escape hole (RCH2) may be greater than or less than the width of the second protrusion (PJP2). The minimum width of the second escape hole (RCH2) may be equal to or greater than the minimum width of the second protrusion (PJP2). This is because, if the minimum width of the second escape hole (RCH2) is less than the minimum width of the second protrusion (PJP2), the second escape hole (RCH2) and the second protrusion (PJP2) may not engage with each other.

[0084]

[0085] Fig. 13 is a side view of a topcoat holder (UKH) according to an embodiment of the present invention. Referring to Fig. 13, the topcoat holder (UKH) may include a first protrusion (PJP1) and a second protrusion (PJP2). The topcoat holder (UKH) may include a first protrusion (PJP1) and a second protrusion (PJP2) on a first surface (SD1) and a second surface (SD2) that contact the topcoat (UK), respectively. In addition, the first protrusion (PJP1) and the second protrusion (PJP2) may be positioned on different planes. The different planes on which the first protrusion (PJP1) and the second protrusion (PJP2) are positioned may be the same as described above with reference to Fig. 9.

[0086] The first protrusion (PJP1) can be interlocked with the first escape hole (RCH1) of the topcoat (UK) and coupled with each other. The first protrusion (PJP1) can serve to temporarily fix the topcoat (UK) by interlocking with the first escape hole (RCH1) of the topcoat (UK). The first protrusion (PJP1) may not have a constant width and may include a first head portion (HDP) and a first shoulder portion (SDP). The first protrusion (PJP1) may be a portion that protrudes in a direction opposite to the first direction (D1). The first protrusion (PJP1) may have a shape in which the width increases as it goes in the direction opposite to the first direction (D1). This may be to prevent movement in the first direction (D1) when temporarily coupling the topcoat (UK) and the topcoat holder (UKH). The movement of the upper plate (UK) in the first direction (D1) can be prevented, thereby making it easier to remove or replace the lower plate (UK) from the upper plate holder (UKH). The first protrusion (PJP1) can be made of the same material as the upper plate holder (UKH).

[0087] The first head portion (HDP) may be the most protruding portion of the first protrusion portion (PJP1). The first head portion (HDP) may be positioned in a direction opposite to the first direction (D1) of the first protrusion portion (PJP1). The first head portion (HDP) may be a portion that comes into contact with the innermost portion of the first escape hole (RCH1) of the topcoat (UK). The innermost portion of the first escape hole (RCH1) may mean an end portion in a direction opposite to the first direction (D1). The first head portion (HDP) may be made of the same material as the topcoat holder (UKH).

[0088] The first shoulder portion (SDP) may be a portion located on the inside of the first protrusion portion (PJP1). The first shoulder portion (SDP) may be located in the first direction (D1) of the protrusion portion (PJP). The first shoulder portion (SDP) may be a portion that contacts the outermost portion of the first escape hole (RCH1) of the topcoat (UK). The outermost portion of the first escape hole (RCH1) may mean an end portion in the first direction (D1). The first shoulder portion (SDP) may be made of the same material as the topcoat holder (UKH).

[0089] The second protrusion (PJP2) may be interlocked with the second escape hole (RCH2) of the top plate (UK) and may serve to temporarily fix the top plate (UK) by interlocking with the second escape hole (RCH2) of the top plate (UK). The second protrusion (PJP2) may not have a constant width and may include a second head portion (HDP) and a second shoulder portion (SDP). The second protrusion (PJP2) may be a portion that protrudes in the third direction (D3). The second protrusion (PJP2) may have a shape in which the width increases as it goes in the third direction (D3). This may be to prevent movement in three directions when temporarily combining the top plate (UK) and the top plate holder (UKH). The movement of the upper part (UK) in the third direction (D3) is prevented, thereby making it easier to remove or replace the upper part (UK) from the upper part holder (UKH). The second protrusion (PJP2) may be made of the same material as the upper part holder (UKH).

[0090] The second head portion (HDP) may be the most protruding portion of the second protrusion portion (PJP2). The second head portion (HDP) may be positioned in the third direction (D3) of the second protrusion portion (PJP2). The second head portion (HDP) may be a portion that comes into contact with the innermost portion of the second escape hole (RCH2) of the top coat (UK). The innermost portion of the second escape hole (RCH2) may mean an end portion in the third direction (D3). The second head portion (HDP) may be made of the same material as the top coat holder (UKH).

[0091] The second shoulder portion (SDP) may be a portion located on the inside of the second protrusion portion (PJP2). The second shoulder portion (SDP) may be located in a direction opposite to the third direction (D3) of the protrusion portion (PJP). The second shoulder portion (SDP) may be a portion that contacts the outermost portion of the second escape hole (RCH2) of the topcoat (UK). The outermost portion of the second escape hole (RCH2) may mean an end portion in a direction opposite to the third direction (D3). The second shoulder portion (SDP) may be made of the same material as the topcoat holder (UKH).

[0092]

[0093] Fig. 14 is a side view showing a state in which a holder (UKH) and a topcoat (UK) are coupled according to embodiments of the present invention. Referring to Fig. 14, a first protrusion (PJP1) located on the topcoat holder (UKH) and a first escape hole (RCH1) located on the topcoat (UK) can be coupled by being interlocked with each other. In addition, a second protrusion (PJP2) located on the topcoat holder (UKH) and a second escape hole (RCH2) located on the topcoat (UK) can be coupled by being interlocked with each other.

[0094] The width of the first shoulder of the first protrusion (PJP1) may be equal to or smaller than the width of the first escape hole (RCH1). This may be to easily separate the topcoat (UK) from the topcoat holder (UKH) along the first protrusion (PJP1) when replacing the topcoat (UK). Referring to FIG. 14, the cross-sectional area of ​​the first escape hole (RCH1) may be larger than the cross-sectional area of ​​the first protrusion (PJP1). This is because when the cross-sectional area of ​​the first escape hole (RCH1) is equal to or smaller than the cross-sectional area of ​​the first protrusion (PJP1), the size of the first protrusion (PJP1) becomes larger than the size of the first escape hole (RCH1), and thus the topcoat holder (UKH) and the topcoat (UK) may not be easily combined.

[0095] The second shoulder portion (SDP) of the second protrusion (PJP2) may be equal to or smaller than the width of the second escape hole (RCH2). This may be to facilitate separation of the topcoat (UK) from the topcoat holder (UKH) along the second protrusion (PJP2) when replacing the topcoat (UK). Referring to FIG. 14, the cross-sectional area of ​​the second escape hole (RCH2) may be larger than the cross-sectional area of ​​the second protrusion (PJP2). This is because when the cross-sectional area of ​​the second escape hole (RCH2) is equal to or smaller than the cross-sectional area of ​​the second protrusion (PJP2), the size of the second protrusion (PJP2) becomes larger than the size of the first escape hole (RCH1), and thus the topcoat holder (UKH) and the topcoat (UK) may not be easily combined.

[0096]

[0097] Fig. 15 is a drawing showing a fastening state of an electrode cutting device including a stripper according to embodiments of the present invention. Referring to Fig. 16, a stripper (STP) can be arranged on the lower side of a top plate holder (UKH). The stripper (STP) prevents the electrode material from easily falling off the top plate (UK) and rising upward when the top plate (UK) rises upward after cutting the electrode material. That is, the stripper (STP) is provided so as to be elastically slidable by a guide that extends and is installed from the top plate holder (UKH). This controls the electrode material to be pressed by elastic force so that it does not rise upward when the top plate holder (UKH) is raised and lowered by a conventional driving means such as a conventional hydraulic or pneumatic cylinder.

[0098] Referring to Fig. 16, the stripper (STP) may not be in close contact with the top coat (UK). To adjust this, the top coat adjuster (UKA) of Fig. 6 may apply lateral pressure. The lateral pressure applied by the top coat adjuster (UKA) to the top coat (UK) or the top coat holder (UKH) may be in the range of 0.05 MPa to 1 MPa, 0.05 MPa to 0.5 MPa, or 0.1 MPa to 0.5 MPa.

[0099]

[0100] FIGS. 16 and 17 are conceptual diagrams briefly illustrating an electrode cutting process of an electrode cutting device according to embodiments of the present invention. Referring to FIG. 16, the top plate (UK) has at least a portion of a wide and thin plate shape. As in one embodiment of the present invention, the top plate (UK) may be installed in the top plate holder (UKH) by forming an inclined edge in an upright state according to a shear angle, but is not limited thereto. The top plate (UK) may have cutting particles coated on its surface. That is, the top plate (UK) may cut the electrode in one stroke by rapidly moving downward, but is not limited thereto, and the top plate (UK) may cut the electrode by reciprocating at short intervals to cut the electrode. The cutting particles are not limited and may be various, but are preferably particles with high hardness, such as diamond, to ensure low wear even with high friction.

[0101] Referring to Fig. 16, the electrode (EP) continuously supplied from the electrode supply unit (ES) can be cut into a certain size by an electrode cutting device located on the electrode supply unit (ES).

[0102] Fig. 17 is a conceptual diagram illustrating a side view of an electrode cutting device according to an embodiment of the present invention. As described above, the thin side, i.e., the lower surface, of the upper surface (UK) according to an embodiment of the present invention for cutting the electrode (EP) may be symmetrical with respect to an imaginary plane. Here, the imaginary plane is a plane that simultaneously includes a first direction (D1) and a third direction (D3), and the first direction (D1) may penetrate the center of the lower surface of the upper surface (UK). In addition, as illustrated in Fig. 17, the point at which the upper surface (UK) descends and contacts the electrode may preferably be close to one end of the surface of the lower surface (LK) that supports the electrode. The normal force that the lower surface (LK) uses to support the electrode upward and the force that the upper surface (UK) applies to the electrode when it descends may have opposite action directions.

[0103] The top coat (UK) may have a thickness of 0.02 mm to 0.1 mm in the plate-shaped portion. Conventional top coats (UK) may require a separate process, such as a cutting process, to manufacture the lower surface. However, in practice, it may not be easy to manufacture the lower surface with a width of less than 0.1 mm. However, the top coat (UK) according to one embodiment of the present invention has at least a portion of a wide plate shape, and thus can be manufactured with a thickness of less than 0.1 mm, particularly up to 0.02 mm. Therefore, the top coat (UK) may be sharper, so that the electrode can be cut more sharply.

[0104]

[0105] The protrusion (PJP) and escape hole (RCH) according to embodiments of the present invention have the effect of preventing the UK from being detached from or attached to the UK holder (UKH). In addition, when replacing the UK, the UK can be more easily attached to the UK holder (UKH).

[0106]

[0107] While embodiments of the present invention have been described with reference to the attached drawings, the present invention may be implemented in other specific forms without altering the technical spirit or essential features thereof. Therefore, the embodiments described above should be understood as illustrative in all respects and not restrictive.

Claims

1. Upper cutting part including the drawing holder and drawing; a top surface adjustment unit adjacent to the side of the top surface; and Including the lower part, The above-mentioned holder includes a protrusion for coupling to the above-mentioned holder, The above-mentioned figure includes an escape hole in which the protrusion is received, The above protrusion includes a head portion and a shoulder portion, An electrode cutting device for an all-solid-state battery, wherein the width of the head portion is greater than the width of the shoulder portion.

2. In paragraph 1, The above head portion has a polygonal cross-section, The above escape hole is an electrode cutting device for an all-solid-state battery, wherein the cross-section shape is concavely curved.

3. In paragraph 1, The above protrusion protrudes in the third direction, An electrode cutting device for an all-solid-state battery, wherein the protrusion increases in width as it goes in the third direction.

4. In paragraph 1, An electrode cutting device for an all-solid-state battery, wherein the minimum width of the escape hole is 0.5 to 0.8 compared to the maximum width of the protrusion.

5. In paragraph 1, An electrode cutting device for an all-solid-state battery, wherein the upper cutting part further includes a joining hole penetrating the upper surface and the upper surface holder.

6. In paragraph 5, The above-mentioned picture and the above-mentioned picture holder are an electrode cutting device for an all-solid-state battery, in which the protrusion and the escape hole are interlocked with each other and incompletely joined.

7. In paragraph 1, An electrode cutting device for an all-solid-state battery, further comprising a stripper positioned between the upper and lower electrodes and separating the electrode from the upper and lower electrodes.

8. In paragraph 1, An electrode cutting device for an all-solid-state battery, wherein the above-mentioned phase adjustment unit includes a phase adjustment device that applies lateral pressure to the side of the phase.

9. In paragraph 8, An electrode cutting device for an all-solid-state battery, wherein the lateral pressure of the above-mentioned pressure regulator is 0.1 MPa to 0.5 MPa.

10. In paragraph 1, An electrode cutting device for an all-solid-state battery, wherein the upper surface moves in an up-and-down direction and one side of the upper surface and one side of the lower surface intersect each other.

11. Upper cutting part including the drawing holder and drawing; A top-down adjustment unit located on the side of the top-down; and Including the lower part, The above-mentioned holder includes a first protrusion and a second protrusion for coupling to the above-mentioned holder, The above-mentioned structure includes a first escape hole in which the first protrusion is received and a second escape hole in which the second protrusion is received, The first protrusion and the second protrusion are located on different planes, An electrode cutting device for an all-solid-state battery, wherein the first escape hole and the second escape hole are located on different planes.

12. In paragraph 11, The above first escape hole is located on the first surface corresponding to the side of the above-mentioned upper surface, An electrode cutting device for an all-solid-state battery, wherein the second escape hole is located on the second surface corresponding to the upper surface of the upper surface.

13. In paragraph 11, The first protrusion above increases in width as it extends in the direction of its protrusion, The second protrusion increases in width as it moves in the direction of its protrusion, An electrode cutting device for an all-solid-state battery, wherein the protrusion direction of the first protrusion and the protrusion direction of the second protrusion intersect each other.

14. In paragraph 13, The minimum width of the first escape hole is 0.5 to 0.8 relative to the maximum width of the first protrusion, and An electrode cutting device for an all-solid-state battery, wherein the minimum width of the second escape hole is 0.5 to 0.8 compared to the maximum width of the second protrusion.

15. In paragraph 11, An electrode cutting device for an all-solid-state battery, wherein the upper cutting part further includes a joining hole penetrating the upper surface and the upper surface holder.

16. In paragraph 15, The above-mentioned picture and the above-mentioned picture holder are an electrode cutting device for an all-solid-state battery, in which the protrusion and the escape hole are interlocked with each other and incompletely joined.

17. In paragraph 11, An electrode cutting device for an all-solid-state battery, further comprising a stripper positioned between the upper and lower layers and separating the electrode from the upper layer.

18. In paragraph 11, The above-mentioned phase adjustment unit is an electrode cutting device for an all-solid-state battery including a phase adjustment device that applies lateral pressure to the side of the phase.

19. In paragraph 18, An electrode cutting device for an all-solid-state battery, wherein the lateral pressure of the above-mentioned pressure regulator is 0.1 MPa to 0.5 MPa.

20. In paragraph 11, An electrode cutting device for an all-solid-state battery, wherein the upper surface moves in an up-and-down direction and one surface of the upper surface and one surface of the lower surface intersect.

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