KR20120078825A - Apparatus for stacking electrode plate - Google Patents

Abstract

PURPOSE: An electrode plate laminating apparatus is provided to alternately laminate cathode plates and anode plates without bending, to insert-fix separates into each gap between the cathode plates and anode plates, and to able to more quickly laminate cathode plates and anode plates. CONSTITUTION: An electrode plate laminating apparatus comprises a separator guiding unit(100), a first electrode plate supplying unit(200), a second electrode plate supplying unit(300), a mounting unit(400), and a fixing unit(500). The first electrode plate supplying unit downwardly supplies cathode plates to a region separated from one side of a separator(10). The second electrode plate supplying unit downwardly supplies anode plates to a region separated from the other side of a separator. The mounting unit comprises a mounting support(410). The fixing unit fixes object mounted on the top of the mounting support by downwardly pressurizing.

Description

Electrode plate stacking device {Apparatus for stacking electrode plate}

The present invention relates to an electrode plate laminating apparatus configured to alternately stack a positive electrode plate and a negative plate with a separator interposed therebetween, and more particularly, the positive electrode plate and the negative electrode plate and the separator may be laminated without fear of bending the positive plate and the negative plate, The present invention relates to an electrode plate laminating apparatus configured to improve productivity.

A battery is a device that converts chemical energy of an active material contained therein into electrical energy by an electrochemical redox reaction. To this end, the battery has a special structure so that the electrochemical reaction occurs instead of the chemical reaction so that the electrons can escape to the outside through the conductor, and the electron flowing through the conductor becomes an electric energy and is usefully used in our lives.

Today's battery technology has been improved for more than 100 years since the advent of lead-acid batteries in 1860, and the research and development of high output, high performance, light weight, miniaturization, and reliability improvement have progressed greatly. Recently, as miniaturization and light weight of electronic equipment have been realized, and the use of portable electronic devices has become common, research on lithium ion batteries having high energy density has been actively conducted. The lithium ion battery includes a negative electrode plate and a positive electrode plate which are made of a material capable of inserting and detaching lithium ions and alternately stacked, a separator inserted between the positive electrode plate and the negative electrode plate so that the positive electrode plate and the negative electrode plate do not directly contact each other, and the negative electrode plate. The anode plate and the separator stacking member include a case into which the inside is introduced, and an organic electrolyte or a polymer electrolyte injected into the case. Therefore, the lithium ion battery is configured to generate electrical energy by oxidation and reduction reactions when lithium ions are inserted and detached from the positive and negative plates. These lithium ion batteries are used in a variety of applications ranging from small cell phone batteries to large capacity electric vehicle batteries, and are currently manufactured in various standards ranging from 1 to 70 cm 2 in the area of electrode collectors generally distributed in the market. .

Meanwhile, a structure in which an anode plate and an anode plate are alternately stacked with a separator interposed therebetween is generally called an electrode plate stack, and a structure in which an electrode plate stack is wrapped several times with a separator is called an electrode assembly. Various methods have been proposed and utilized to date. Recently, a method of fabricating a unit electrode plate stack in which a pair of negative electrode plates and a positive electrode plate are laminated with a separator therebetween, and then laminating the unit electrode plate stack on another unit electrode plate stack is widely utilized. There is a situation.

Hereinafter, a conventional electrode plate laminate manufacturing process will be described in detail with reference to the accompanying drawings.

1 to 3 are schematic diagrams sequentially showing a conventional electrode plate laminate manufacturing process.

In order to manufacture an electrode plate laminate for a secondary battery, first, as shown in FIG. 1, the separator 10 is continuously supplied in a horizontal direction, and the separator 10 is connected using a pair of adhesive spraying means 30. Spray the adhesive on both sides of it. The positive electrode plate 22 and the negative electrode plate 24 are attached to both surfaces of the separator 10 to which the adhesive is applied, and the first laminated positive electrode plate 22 and the negative electrode plate 24 are fixed by the clamp 40, and the position thereof is fixed. Subsequently, the positive electrode plate 22 and the negative electrode plate 24 that are subsequently stacked are moved to the upper side of the positive electrode plate 22 and the negative electrode plate 24, which are initially stacked, as shown in FIG. In this case, the separation membrane 10 inserted between the positive electrode plate 22 and the negative electrode plate 24 is folded in a Z shape, and the separation membrane in the process of moving the positive electrode plate 22 and the negative electrode plate 24 positioned on the upper side to the right as much as possible. As shown in the enlarged view of FIG. 3, the lower left end of the upper portion 10 is lifted upward, and a part of the separator 10 may be separated from the negative electrode plate 24, and a part of the positive electrode plate 22 may be bent. Can be.

In addition, in the case of using the jet stacking method, a process of locating the positive electrode plate 22 and the negative electrode plate 24 that are subsequently stacked on the first stacked positive electrode plate 22 and the negative electrode plate 24 is essentially included. As well as a device for moving the 22 and the negative electrode plate 24 toward the separator 10 side, a separate transfer means for transferring the positive electrode plate 22 and the negative electrode plate 24 laminated with the separator 10 therebetween is essentially necessary. Since it must be required, there is a disadvantage that the structure and manufacturing process of the device is complicated and thus there is a limit in improving productivity. In particular, when the size of the positive electrode plate 22 and the negative electrode plate 24 is large, the positive electrode plate 22 and the negative electrode plate when the two sides of the positive electrode plate 22 and the negative electrode plate 24 laminated with the separator 10 therebetween are caught and moved. Since 24 is bent due to its own weight, the anode plate 22 and the cathode plate 24 may be damaged, and the stack structure of the anode plate 22, the cathode plate 24, and the separator 10 may be disturbed. have.

The present invention has been proposed to solve the above problems, it is possible to insert a separator between the positive and negative plates while alternately stacking the positive and negative plates without fear of bending the positive and negative plates, the operation for laminating the positive and negative plates It is an object of the present invention to provide an electrode plate laminating apparatus that is configured to minimize productivity and improve productivity.

Electrode plate laminating apparatus according to the present invention for achieving the above object, the membrane guide means for guiding the supply direction of the membrane downward; First electrode plate supply means for supplying the positive electrode plate downwardly to a point spaced from one side of the separator; Second electrode plate supply means for supplying the negative electrode plate downwardly to a point spaced from the other side of the separator; The separator and the positive electrode plate and the negative electrode plate is provided with a seating table that can be seated on the upper surface, the seating table is reciprocated so as to be alternately located in the positive electrode plate supply point and the negative electrode plate supply point with the separator seated on the upper surface, A seating part configured to fabricate an electrode plate stack having a structure in which an anode plate and a cathode plate are alternately stacked therebetween and manufactured on the seating plate; And fixing means for fixing the object seated on the upper surface of the seat by pressing downward.

The separator guide means is provided with a pair of guide rollers arranged so that the rotation axis is parallel, the separator is configured to pass between the pair of guide rollers.

The first electrode plate supplying means may include a first adsorption zone having a suction hole for adsorption of a positive electrode plate, a first adsorption zone lifting block to which the first adsorption zone is coupled, and a transfer direction in a width direction of the separation membrane. The first adsorption table lifting block is configured to include a first adsorption table transport block is configured to the lifting structure.

The second electrode plate supply means may include a second adsorption table having a adsorption hole for adsorption of the negative electrode plate on a bottom surface thereof, a second adsorption table lifting block to which the second adsorption table is coupled, and transportable in a width direction of the separation membrane. The second adsorption zone lifting block is configured to include a second adsorption zone transport block is configured to the lifting structure.

The seating unit includes a longitudinal transfer block movable in the thickness direction of the separator, and a lift block coupled to the longitudinal transfer block in a structure in which the seat is mounted and liftable, wherein the lift block is the seating unit. The seating plate is configured to be lowered when passing through the lower side of the separation membrane guide means than when positioned below the first electrode plate supply means and the second electrode plate supply means.

The elevating block is moved along a convex circular path downward to maintain a tensile force within a predetermined range in the separator between the separator guide means and the seating plate.

The fixing means has a structure that is movable in the width direction of the separation membrane is coupled to the lifting block in the transverse direction, and the structure is coupled to the lifting structure in the transverse transfer block is transported to the upper side of the seat when descending It comprises a fixing bar for pressing down the object seated on the seating.

The fixing bar is composed of a first fixing bar and a second fixing bar arranged in parallel in the transport direction of the longitudinal transfer block, the first fixing bar is provided with a negative electrode plate on the seat by the second electrode plate supply means And press down the negative electrode plate provided on the seating plate while the seating table is transported to the lower side of the first electrode plate supplying means, and the second fixing bar is provided on the seating plate by the first electrode plate supplying means. From the time the negative plate is provided, the seat plate is configured to press down the positive plate provided on the seat plate while the seat plate is transferred to the lower side of the second electrode plate supply means.

The longitudinal transfer block is provided on both sides of the seating plate in the width direction of the separation membrane, respectively, the first fixed bar and the second fixed bar is provided in the pair of longitudinal transfer block, respectively.

The fixing means is a pair of fixed bars coupled to the transverse transfer block in a structure capable of elevating a predetermined distance, the first fixing bar and the second fixing bar are mounted in a structure capable of elevating, and the bottom of which is inclined toward one side. And a pair of pressure blocks which are in contact with the block and the bottom of the fixed bar block, respectively and horizontally reciprocated in a direction in which the height of the bottom of the fixed bar block is changed.

The pressure block is provided with a pressure roller that can be rolled on the bottom surface of the fixed bar block to a portion in contact with the bottom of the fixed bar block.

By using the electrode plate laminating apparatus according to the present invention, even if the size of the positive electrode plate and the negative electrode plate is large, the positive electrode plate and the negative electrode plate can be laminated alternately without fear, even if a separate adhesive is not used between the positive electrode plate and the negative electrode plate Can be inserted and fixed, there is an advantage that can be laminated faster than the positive plate and the negative plate.

1 to 3 are schematic diagrams sequentially showing a conventional electrode plate laminate manufacturing process.
4 is a perspective view of an electrode plate laminating apparatus according to the present invention.
5 to 9 sequentially illustrate a process of fabricating an electrode plate laminate by alternately stacking a positive electrode plate and a negative electrode plate with a separator therebetween.
10 and 11 illustrate a coupling structure between the transverse transfer block and the fixed bar included in the electrode plate lamination apparatus according to the present invention.

Hereinafter, an embodiment of an electrode plate laminating apparatus according to the present invention will be described in detail with reference to the accompanying drawings.

4 is a perspective view of an electrode plate laminating apparatus according to the present invention.

In order to manufacture an electrode plate laminate, first, the positive electrode plate and the negative electrode plate should be alternately stacked with the separator 10 interposed therebetween. Since it sags down, damage to the positive and negative plates may occur, and the laminated structure may be twisted.

Electrode plate laminating apparatus according to the present invention is devised to solve the above problems, from the membrane guide means 100 for guiding the supply direction of the separation membrane downward and from one side of the separation membrane (10) The first electrode plate supply means 200 for supplying the positive electrode plate downward to the spaced point (the point spaced forward from the front surface of the separator 10 in Figure 4), and the point spaced from the other side of the separation membrane 10 ( In FIG. 4, the second electrode plate supplying means 300 for supplying the negative electrode plate downward to the rear surface from the rear surface of the separator 10 and the separator 10, the positive electrode plate, and the negative electrode plate may be seated on an upper surface thereof. A seating unit 400 is provided with a seating plate 410 to be reciprocated to be alternately positioned at the anode plate supplying point and the cathode plate supplying point, and the separator 10, the cathode plate or the cathode plate is seated on the seating surface 410. Object seated on the upper surface of the seating plate 410 (ie, the separator membrane) so that the separator 10 or the positive or negative electrode plate seated on the upper surface of the seating table 410 is not moved when the seating table 410 is moved in the state 10 and one or more of the positive electrode plate and the negative electrode plate) is configured to include a fixing means 500 for fixing by pressing down.

At this time, the seating plate 410 is transferred to the anode plate supply point in the state in which the separation membrane 10 is seated on the upper surface, and then the cathode plate is delivered, so that the cathode plate supplied from the first electrode plate supplying means 200 is a seating table. It is stacked on the separator 10 seated on the upper surface of the (410). In addition, after the anode plate is stacked, the seating table 410 moves to the cathode plate supplying point. In this case, since the separator 10 supplied from the separator guide means 100 covers the anode plate, the second electrode plate supply means ( The negative electrode plate supplied from 300 is laminated on the separator 10 covering the positive electrode plate. In addition, when the seating plate 410 moves to the cathode plate supply point after the cathode plates are stacked, the separator 10 is covered on the anode plate, and thus the newly supplied cathode plate is stacked on the separator 10 covering the cathode plate.

As described above, the electrode plate laminating apparatus according to the present invention does not move the positive electrode plate and the negative electrode plate when the positive electrode plate and the negative electrode plate are alternately stacked, but instead moves the seating plate 410 on which the positive electrode plate and the negative electrode plate are reciprocated, It is configured to receive the negative electrode plate, there is an advantage that it is possible to minimize the damage of the positive electrode plate and negative electrode plate that can occur in the process of moving the positive electrode plate and the negative electrode plate. In addition, when the seating stand 410 is reciprocated to the front and rear of the membrane guide means 100 in a state in which the membrane 10 is connected to the seating table 410, the separator on the upper surface of the newly received positive or negative plate Since 10 is automatically covered, there is an advantage that a separate device for inserting the separator 10 between the positive electrode plate and the negative electrode plate is not required.

In addition, the separator 10 used in the secondary battery is generally manufactured in the form of a thin film, and may cause a phenomenon that the sheet is distorted or wrinkled in one side during the transfer process. Therefore, the separator guide means 100 included in the electrode plate stacking apparatus according to the present invention includes a pair of guide rollers 110 arranged in parallel with the rotating shaft as shown in FIG. 4, and the separator 10 It is supplied downward through a pair of guide rollers (110). As such, when the separation membrane 10 is supplied to pass through the pair of guide rollers 110, the separation membrane 10 may be prevented from being twisted or bent to one side. In this case, the pair of guide rollers 110 should be mounted in a rotatable structure to be rolled on the front and rear of the separation membrane 10 in contact with the front and rear of the separation membrane 10. A separate elastic member (not shown) for elastically pressing the pair of guide rollers 110 toward the separator 10 so that the pair of guide rollers 110 may be in close contact with the front and rear surfaces of the separator 10. It may be provided.

Meanwhile, when the side ends of the positive electrode plate and the negative electrode plate are transported as in the related art, the center portions of the positive electrode plate and the negative electrode plate may sag down, and the positive electrode plate and the negative electrode plate may be damaged while the side ends of the positive electrode plate and the negative electrode plate are caught. Therefore, the first electrode plate supply means 200 included in the present invention includes a first adsorption table 210 having a suction hole for adsorption of a positive electrode plate on a bottom thereof, and a first adsorption table 210 coupled to the first adsorption table 210. The suction cup lifting block 220 and the first suction cup conveying block 230 which is configured to be transportable in the width direction of the separation membrane 10 and has a structure in which the first suction cup lifting block 220 is liftable are provided. Including, it is configured to be able to transfer the positive plate to the front side of the separator 10 one by one. Similarly, the second electrode plate supplying means 300 also includes a second adsorption table 310 having an adsorption hole for adsorption of the negative electrode plate on the bottom thereof, and a second adsorption table lifting block to which the second adsorption table 310 is coupled ( 320 and a second adsorption band transport block 330 configured to be transportable in the width direction of the separation membrane 10 and configured to have a structure in which the second adsorption band lifting block 320 is liftable. At this time, in this embodiment, the first electrode plate supply means 200 for providing the positive electrode plate is located on the front side of the separator 10, and the second electrode plate supply means 300 for providing the negative electrode plate is the separator 10. Although only the case is located on the back side of the, the position of the first electrode plate supply means 200 and the second electrode plate supply means 300 may be interchanged.

In addition, the seating portion 400 for receiving the positive electrode plate and the negative electrode plate from the first electrode plate supplying means 200 and the second electrode plate supplying means 300 is the thickness direction of the separator 10 (front and rear direction in this embodiment). Longitudinal conveying block 420 is moved along the longitudinal rail (R) having a length, and the seat 10 (410) is laminated to the separator 10, the positive electrode and the negative electrode plate is mounted to the longitudinal conveying block 420 Including the lifting block 430 is coupled, as the longitudinal transfer block 420 is reciprocated along the longitudinal rail (R) and the seating table 410 and the lower plate feed point and the membrane guide means 100 and It is configured to cross the cathode plate feed point. At this time, when the height of the seating table 410 is always maintained constant, when the seating table 410 is located at the anode plate supply point or cathode plate supply point than the distance between the membrane guide means 100 and the seating table 410 When the seating zone 410 passes the lower side of the membrane guide means 100, the distance between the membrane guide means 100 and the seating table 410 is shorter, the seating table 410 is the membrane guide means 100 When passing through the lower side of the separation membrane 10 (more specifically the separation membrane 10 between the membrane guide means 100 and the seat 410) may be crumpled. Therefore, the elevating block 430 equipped with the seating table 410 is, when the seating table 410 is positioned below the first electrode plate supply means 200 and the second electrode plate supply means 300. The seating table 410 is lowered when passing through the lower side of the membrane guide means 100, it is preferable to be configured to prevent the phenomenon that the membrane 10 is wrinkled as mentioned above.

On the other hand, if the magnitude of the tensile force applied to the membrane 10 between the membrane guide means 100 and the seating table 410 is too small, the membrane 10 may be twisted or wrinkled, and the membrane guide means 100 and seating If the magnitude of the tensile force applied to the separator 10 between the stand 410 is too large, breakage such as tearing of the separator 10 may occur. Therefore, the lifting block 430 equipped with the seating table 410 is set in advance in the separator 10 between the membrane guide means 100 and the seating table 410, no matter where the seating table 410 is located. In order to maintain the tension within the range, the longitudinal conveying block 420 is configured to be slowly lowered while being moved along the longitudinal rail (R) and then gradually raised and moved along the convex arc-shaped path downwards. desirable.

In addition, the separation membrane 10 and the fixing means 500 for fixing the positive electrode plate and the negative electrode plate to the seating plate 410 seated in a stacked structure on the seating table 410, the movable structure in the width direction of the separation membrane 10 The transverse transfer block 510 coupled to the elevating block 430 and the elevating structure coupled to the transverse transfer block 510 are transported to the upper side of the seating plate 410 and then lowered. The fixing bar 520 is configured to downwardly press the object (the electrode plate stack in which one or more of the separator 10 and the positive electrode plate and the negative electrode plate) are seated on the seating table 410. As described above, when the fixing bar 520 is coupled to the transverse transfer block 510 that is movable in the width direction of the separation membrane 10, the lifting bar 520 presses the upper surface of the electrode plate stack downward. When the separation membrane 10 and the positive electrode plate or the negative electrode plate are additionally stacked on the upper side thereof, the back side is spaced apart from the seating plate 410, that is, the width direction of the separation membrane 10 is completely spaced apart from the electrode plate assembly, and then the predetermined height is increased. After rising, the additionally stacked separator 10 and the positive electrode plate or the negative electrode plate are further advanced to be positioned upward, and thus, the additionally stacked separator 10 and the positive electrode plate or the negative electrode plate can be pressed downward. During this repetition, there is an advantage that the electrode plate stack stacked on the seating table 410 can be stably fixed to the seating table 410.

On the other hand, when only one fixing bar 520 for pressing down and fixing the electrode plate stack mounted on the upper side of the mounting table 410 is provided, the fixing bar 520 is pressing down the electrode plate stack When the separator 10 and the positive electrode plate are further stacked on the fixing bar 520 in the state, the fixing bar 520 moves backward to be spaced apart from the electrode plate stack, the operation of raising the predetermined height, and the additional stacking. After the operation of advancing so that the separation membrane 10 and the positive plate is located on the upper side, and further pressing the laminated membrane 10 and the positive electrode plate further down, the seating table 410 is transferred to the negative plate supply point Should be. That is, when only one fixing bar 520 is provided, since the seating table 410 may be transferred only after the four operations described above are completed, it takes a lot of time.

Therefore, in the fixing means 500 included in the present invention, when the separator 10 and the negative electrode plate are additionally laminated, the first separator bar for pressing down and fixing them further down, and when the separator 10 and the positive plate are further laminated, Second separation bars for fixing by pressing may be provided separately. That is, the mounting plate 410 supplies the first electrode plate since the first fixing bar 522 is provided with the negative electrode plate on the seating plate 410 by the second electrode plate supplying means 300. The negative plate provided to the seating plate 410 is downwardly pressed while being transported to the lower side of the means 200, and the second fixing bar 524 is mounted to the seating plate 410 by the first electrode plate supplying means 200. Since the mounting plate 410 is transferred to the lower side of the second electrode plate supply means 300 from when the negative plate is provided on the) is configured to press down the positive plate provided on the seating plate 410. As described above, when the fixing bar 520 includes the first fixing bar 522 and the second fixing bar 524, the second fixing bar 522 may be moved back while being removed from the electrode plate stack. 524 advances to pressurize the electrode plate stack downwards, and advances the first fixed bar 522 to pressurize the electrode plate stack downwards while the second fixing bar 524 is retracted from the electrode plate stack. Therefore, there is an advantage that the time required for stacking a plurality of separators 10 and the positive electrode plate and the negative electrode plate can be significantly reduced.

In addition, the first fixing bar 522 and the second fixing bar 524 may be provided in two, so as to press down both the left and right sides (both sides of the direction along the width direction of the separator 10) of the electrode plate stack. Can be. That is, the longitudinal transfer block 420 is provided on both sides of the seating table 410 in the width direction of the separation membrane 10, respectively, the first fixing bar 522 and the second fixing bar 524 is It may be configured to be provided in the pair of longitudinal transfer block 420, respectively.

Hereinafter, an operation of the electrode plate stacking apparatus according to the present invention will be described in detail with reference to the accompanying drawings.

5 to 9 sequentially illustrate a process of fabricating an electrode plate stack by alternately stacking a positive electrode plate and a negative electrode plate with a separator 10 interposed therebetween.

In order to manufacture the electrode assembly using the electrode plate stacking apparatus according to the present invention, as shown in FIG. 5, the end of the separator 10 supplied through the membrane guide means 100 is seated 410. After fixing to the upper surface of the, the longitudinal transfer block 420 and the lifting block 430 is operated to move the seating table 410 to the positive plate feed point. At this time, the end of the separation membrane 10 is fixed to the mounting surface 410 by the fixing bar 520, as shown in the present embodiment seats the end of the separation membrane 10 only by the first fixing bar 522. The upper end of the separation membrane 10 may be fixed to the mounting surface 410 by using both the first fixing bar 522 and the second fixing bar 524.

When the seating table 410 is located at the anode plate supply point, as shown in FIG. 6, the first suction table 210 is moved to the upper surface of the seating table 410 to be adsorbed on the bottom surface of the first suction table 210. The positive electrode plate is seated on the upper side of the separator 10 and the first fixing bar 522, and the first fixing bar 522 is moved in the width direction of the separator 10 so as to fall out between the positive electrode plate and the separator 10. The second fixing bar 524 is transferred to the upper surface of the positive electrode plate and then lowered so that the positive plate and the separator 10 are fixed to the upper surface of the seating plate 410 by the second fixing bar 524.

When the first fixing bar 522 presses the upper surface of the positive plate downward, the first adsorption table 210 is returned to its original position, and as shown in FIG. 7, the seating table 410 is transferred to the cathode plate supply point. At this time, when the seating table 410 is moved in the horizontal direction, when the seating table 410 passes the lower side of the membrane guide means 100, the distance between the seating table 410 and the membrane guide means 100 is a seating table ( Since the length of the separation membrane 10 between the 410 and the separation membrane guide means 100 is shorter, the separation membrane 10 may be folded or wrinkled. Therefore, the seating table 410 is a downwardly convex arc so that a certain amount of tensile force can be maintained in the separator 10 while being transported to the cathode plate feed point, that is, the separator 10 can be stretched in tension. Are transported along a path in the direction.

On the other hand, when the seating table 410 is transferred to the cathode plate supply point, the second adsorption table 310 is transferred to the upper side of the seating table 410 to further stack the negative plate adsorbed on the bottom surface to the seating table 410, The upper surface of the positive electrode plate is covered with the separator 10 while the table 410 is passed through the lower side of the membrane guide means 100 to the cathode plate supply point, so that the negative electrode plate is disposed on the upper side of the positive electrode plate with the separator 10 therebetween. Are stacked. As such, when the seating plate 410 on which the positive electrode plate and the negative electrode plate are stacked is reciprocated in the front and rear direction with the separator guide means 100 in the center, the separator 10 is automatically laminated on the upper surface of the newly seated positive plate or negative plate. In this case, there is no need for a separate device for inserting the separator 10 between the positive electrode plate and the negative electrode plate.

In addition, when the negative electrode plate is additionally stacked by the second adsorption table 310, the second fixing bar 524 which presses down the positive electrode plate moves in the width direction of the separator 10 to be removed from between the positive electrode plate and the negative electrode plate, and the first plate. The fixing bar 522 moves to the upper surface of the negative electrode plate located at the uppermost side and presses downward to fix the entire electrode plate assembly including the newly stacked separator 10 and the negative electrode plate to the seating plate 410. As such, when the fixing bar 520 for fixing the electrode assembly seated on the seating plate 410 is configured to be divided into the first fixing bar 522 and the second fixing bar 524, illustrated in FIG. 9. As described above, while the first fixing bar 522 is removed from the separator 10 and the positive electrode plate, the electrode plate assembly including the separator 10 and the positive electrode plate on which the second fixing bar 524 is newly stacked is mounted on the mounting table 410. 8, the electrode including the separator 10 and the cathode plate having the first fixing bar 522 newly stacked while the second fixing bar 524 is pulled out from between the anode plate and the separator 10, as shown in FIG. 8. Since the plate assembly can be fixed to the seating table 410, there is an advantage that the productivity can be significantly improved.

When the second fixing bar 524 presses down the upper surface of the newly stacked negative plates, the second adsorption table 310 is returned to its original position, and as shown in FIG. 9, the seating table 410 is transferred to the anode plate supply point. do. In this way, even when the seating table 410 is transferred from the cathode plate supply point to the anode plate supply point, the separator 10 is transported along a downwardly convex circular path so as to prevent the separator 10 from being folded or wrinkled.

When the positive electrode plate and the negative electrode plate stacking process illustrated in FIGS. 5 to 9 are repeated several times, and the positive electrode plate and the negative electrode plate are stacked by a predetermined number, an electrode plate assembly that can be used in the secondary battery is completed.

As described above, when the electrode plate stacking apparatus according to the present invention is used, the anode plate and the cathode plate which are newly supplied are alternately supplied only by the operation of transferring the seating plate 410 in which the cathode plate and the anode plate are stacked without the operation of picking up and transporting the anode plate and the cathode plate. Since it can be laminated to prevent damage to the positive electrode plate and the negative electrode plate, the separator 10 is automatically stacked every time the seat 410 is transported back and forth with the separator guide means 100 between the separation membrane 10 There is no need for a separate device for lamination, and the seating stand 410 is transported along a convex arc downward, so that the separation membrane 10 is always kept in a taut state and thus the separation membrane 10 is folded or crumpled. There is an advantage that the phenomenon of.

10 and 11 illustrate a coupling structure between the transverse transfer block 510 and the fixed bar 520 included in the electrode plate stacking apparatus according to the present invention.

The first fixing bar 522 and the second fixing bar 524 are used to fix an object mounted on the upper surface of the seating plate 410, that is, an electrode plate stack in which a positive electrode plate and a negative electrode plate are stacked, to the seating table 410. Since the first pressing bar 522 and the second fixing bar 524 in the state shown in Figures 6 and 8 to move in the horizontal direction and exit from the electrode plate stack in the state shown in Figure 6 and 8, the first There is a possibility that the separator 10 or the positive electrode plate or the negative electrode plate which is in contact with the bottom surfaces of the fixing bar 522 and the second fixing bar 524 may be damaged by being scratched by the first fixing bar 522 and the second fixing bar 524. have.

Therefore, it is preferable that the first fixing bar 522 and the second fixing bar 524 pressurized downward on the electrode plate stack are configured to be lifted out of the electrode plate stack after being slightly lifted upward. At this time, when the first fixing bar 522 is removed from the electrode plate stack, the second fixing bar 524 presses the electrode plate stack downward, and when the second fixing bar 524 is removed from the electrode plate stack, 1 Since the fixing bar 522 pushes down the electrode plate stack, when the lifting block 430 is raised to slightly lift up any one of the fixing bars 520 to be removed from the electrode plate stack, the electrode plate stack. Since it is lifted up to another fixing bar 520 to be pressed downward, there is a fear that the electrode plate stack is separated from the seating table 410.

Electrode plate laminating apparatus according to the present invention is coupled to the transverse transfer block 510 in a structure that can be elevated by a predetermined distance in order to solve the above problems, the first fixing bar 522 and the second fixed The bar 524 is mounted in a structure capable of lifting and lowering, respectively, and a pair of fixed bar blocks 530 having a bottom surface inclined to one side, and a pair of fixed bar blocks 530, respectively, being in contact with the bottom of the fixed bar blocks ( 530 may be configured to further include a pair of pressure blocks 540 horizontally reciprocated in the direction in which the height of the bottom surface is changed. Therefore, when the pressure block is transferred to the left in the state shown in FIG. 10, the fixed bar block 530 is moved upward by the bottom height difference of the point where the pressure block is in contact with the first bar coupled to the fixed bar block 530. The fixing bar 522 and the second fixing bar 524 are also lifted upward. In this case, the fixing bar block 530 and the pressure block 540 are provided on the first fixing bar 522 and the second fixing bar 524, respectively, the first fixing bar 522 and the second fixing bar ( Since only one of the 524 may be selectively lifted, damage to the separator 10 or the positive electrode plate or the negative electrode plate may be prevented when the first fixing bar 522 and the second fixing bar 524 are removed from the electrode plate stack. While there is an advantage that the electrode plate laminate can be prevented from being separated from the seating table 410.

In addition, the pressure block 540 can be rolled on the bottom surface of the fixed bar block 530 to a portion in contact with the bottom of the fixed bar block 530 to minimize friction with the fixed bar block 530. It is preferable that the pressure roller 542 is provided.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the scope of the present invention is not limited to the disclosed exemplary embodiments. In addition, those skilled in the art should understand that many modifications and variations are possible without departing from the scope of the present invention.

10: membrane 100: membrane guide means
110: guide roller 200: first electrode plate supply means
210: first adsorption zone 220: first adsorption zone elevation block
230: first adsorption table transfer block 300: second electrode plate supply means
310: second adsorption stand 320: second adsorption stand lift block
330: second adsorption table transfer block 400: seating portion
410: seating table 412: first seating table
414: second seating zone 415: slit
420: longitudinal transfer block 430: elevating block
500: fixing means 510: transverse transfer block
520: fixed bar 522: first fixed bar
524: second fixing bar R: longitudinal rail

Claims (11)

Membrane guide means for guiding the supply direction of the membrane downward;
First electrode plate supply means for supplying the positive electrode plate downwardly to a point spaced from one side of the separator;
Second electrode plate supply means for supplying the negative electrode plate downwardly to a point spaced from the other side of the separator;
The separator and the positive electrode plate and the negative electrode plate is provided with a seating table that can be seated on the upper surface, the seating table is reciprocated so as to be alternately located in the positive electrode plate supply point and the negative electrode plate supply point with the separator seated on the upper surface, A seating part configured to fabricate an electrode plate stack having a structure in which an anode plate and a cathode plate are alternately stacked therebetween and manufactured on the seating plate;
Fixing means for fixing the object seated on an upper surface of the seat by pressing downward;
Electrode plate laminating apparatus characterized in that it comprises a.
The method of claim 1,
The membrane guide means,
And a pair of guide rollers arranged such that the rotating shafts are parallel to each other, such that the separator passes between the pair of guide rollers.
The method of claim 1,
The first electrode plate supply means,
A first adsorption zone having a suction hole for adsorption of the positive electrode plate, a first adsorption zone lifting block to which the first adsorption zone is coupled, and a first adsorption platform lifting block configured to be transported in the width direction of the separation membrane. Electrode plate lamination apparatus characterized in that it comprises a first adsorption table transfer block is configured to be a structure capable of lifting.
The method of claim 1,
The second electrode plate supply means,
A second adsorption table having a suction hole for adsorption of the negative electrode plate, a second adsorption table lifting block to which the second adsorption table is coupled, and a second adsorption table lifting block configured to be transported in the width direction of the separator; Electrode plate laminating apparatus characterized in that it comprises a second adsorption table transfer block is configured to be a structure capable of lifting.
The method of claim 1,
The seat (1)
A longitudinal transfer block movable in the thickness direction of the separator, and a lift block mounted on the seating plate and coupled to the longitudinal transfer block in a liftable structure;
The lifting block is configured to be lowered when the seating plate passes below the membrane guide means than when the seating plate is positioned below the first electrode plate supplying means and the second electrode plate supplying means. Plate laminating device.
The method of claim 5,
The elevating block is an electrode plate laminating apparatus, characterized in that moved along the convex arc-shaped path down to maintain a tensile force within a predetermined range in the separator between the separator guide means and the seating plate.
The method of claim 1,
Wherein,
The transverse transfer block coupled to the elevating block with a structure movable in the width direction of the separation membrane, and coupled to the elevating structure to the transverse transfer block is transferred to the upper side of the seating table and then lowered on the seat Electrode plate laminating apparatus comprising a fixed bar for pressing down the seated object.
The method of claim 7, wherein
The fixing bar is composed of a first fixing bar and a second fixing bar arranged in parallel in the transport direction of the longitudinal transfer block, the first fixing bar is provided with a negative electrode plate on the seat by the second electrode plate supply means And press down the negative electrode plate provided on the seating plate while the seating table is transported to the lower side of the first electrode plate supplying means, and the second fixing bar is provided on the seating plate by the first electrode plate supplying means. And an electrode plate stacking device configured to pressurize the cathode plate provided on the seating plate while the seating table is transported to the lower side of the second electrode plate supplying means from the time when the cathode plate is provided.
The method of claim 8,
The longitudinal transfer block is provided on both sides of the seating plate in the width direction of the separation membrane, respectively
The first fixing bar and the second fixing bar are electrode plate laminating apparatus, characterized in that each provided in the pair of longitudinal transfer block.
The method of claim 8,
Wherein,
A pair of fixed bar blocks coupled to the transverse transfer block in a structure capable of elevating a predetermined distance and mounted in a structure in which the first fixing bar and the second fixing bar are liftable, respectively, the bottom of which is formed to be inclined toward one side; And a pair of pressing blocks which are in contact with the bottom of the fixed bar block of the pair and are horizontally reciprocated in a direction in which the height of the bottom of the fixed bar block is changed.
The method of claim 7, wherein
The pressing block, the electrode plate laminating apparatus characterized in that the pressing roller which can be rolled on the bottom surface of the fixed bar block in contact with the bottom surface of the fixed bar block.

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