JP3095746B1 - Stacked battery manufacturing equipment - Google Patents

Abstract

Abstract: PROBLEM TO BE SOLVED: To provide a stacked battery manufacturing apparatus with good workability, which does not require a separate apparatus for manufacturing an anode plate, a cathode plate, and a separator. SOLUTION: In a stacked battery manufacturing apparatus M1, a strip-shaped separator material 15 is formed by a stacked body forming mechanism 2 including a separator supply unit 12, an anode plate / separator supply unit 13, and a cathode plate / separator supply unit 14. 18, 23
And the strip-shaped anode plate material 21 and the strip-shaped cathode plate material 26, separators 16, 19, and 24, the anode plate 22, and the cathode plate 27 are manufactured, and these are transferred units 17, 20, and
25 to form a laminate. For this reason,
It is not necessary to separately provide an apparatus for manufacturing an anode plate, a cathode plate, and a separator, and workability is improved.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for manufacturing a stacked battery in which an anode plate and a cathode plate are stacked with a separator interposed therebetween.

[0002]

2. Description of the Related Art In recent years, in order to reduce the thickness or size of a battery, a stacked battery in which an anode plate and a cathode plate each formed in a thin plate shape are laminated via an insulating separator has been widely used. . In the conventional manufacturing apparatus or manufacturing method of a stacked battery, an anode plate, a cathode plate, and a separator (hereinafter, collectively referred to as “laminated thin plate” for convenience) which are separately manufactured in a predetermined shape are used. These laminated thin plates are laminated in a predetermined order to produce a laminated battery (for example, see Japanese Patent Publication No. 61-55751).

[0003]

However, in such a conventional apparatus or method for manufacturing a laminated battery, each laminated sheet, that is, an apparatus for producing a laminated sheet for producing an anode plate, a cathode plate and a separator is separately provided. Since it is necessary to provide such a battery, there is a problem that the overall manufacturing system of the stacked battery becomes large. In addition, there is a problem that the workability is poor because there is no need to store the stacked thin plates manufactured by the stacked thin plate manufacturing apparatus or transport them to the stacked battery manufacturing apparatus.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems, and does not require a separate apparatus for manufacturing an anode plate, a cathode plate and a separator. It is an object of the present invention to provide a manufacturing apparatus.

[0005]

Means for Solving the Problems To solve the above problems, an apparatus for manufacturing a stacked battery according to the present invention, in which an anode plate and a cathode plate are stacked with a separator interposed therebetween, comprises: The strip-shaped anode plate material is cut by a predetermined length (the width of the anode plate) from the tip thereof to produce an anode plate, and the anode plate is transferred to a predetermined portion on the transport mechanism (arrangement, attachment). The anode plate supply unit and the strip-shaped cathode plate material are cut from the tip by a predetermined length (the width of the cathode plate) to produce a cathode plate, and the cathode plate is placed at a predetermined position on the transport mechanism. Transfer (location,
The cathode plate supply section to be attached and the strip-shaped separator material are cut from the tip by a predetermined length (the width of the separator) to produce a separator, and the separator is transferred to a predetermined portion on the transport mechanism. A laminate supply mechanism that laminates an anode plate, a cathode plate, and a separator such that the separator is sandwiched between the anode plate and the cathode plate, thereby forming a laminate. b) In the course of forming the laminate by the laminate forming mechanism, the electrolytic solution is placed on the upper surface of the anode plate, the cathode plate, the separator, or a laminate (workpiece or intermediate of the laminate) disposed on the transport mechanism. And (c) pressing the upper surface of the laminate disposed on the transport mechanism while the laminate forming mechanism is forming the laminate, so that the electrolyte in the laminate is Degassing mechanism to remove air bubbles It is characterized in that is provided.

In this apparatus for manufacturing a laminated battery, each laminated thin plate, ie, an anode plate, a cathode plate, and a separator,
Each is manufactured from a strip-shaped anode plate material, a cathode plate material, and a separator material by an anode plate supply unit, a cathode plate supply unit, and a separator supply unit that constitute the stacked battery manufacturing apparatus. Therefore, it is not necessary to separately provide an apparatus for manufacturing the anode plate, the cathode plate, and the separator, and the overall manufacturing system of the stacked battery is downsized. In addition, the work is not required unless the means for storing the anode plate, the cathode plate, and the separator or transporting them to the apparatus for manufacturing the stacked battery becomes unnecessary, so that the workability is improved. Further, in this stacked battery manufacturing apparatus, the electrolyte is automatically supplied between the stacked thin plates during the formation of the stacked body by the electrolyte coating mechanism, and the bubbles in the electrolyte are removed by the defoaming mechanism. Therefore, the quality of the stacked battery is improved.

In the above-mentioned apparatus for manufacturing a laminated battery, the transport mechanism includes, for example, (i) a belt conveyor for transporting an anode plate, a cathode plate, a separator or a laminate through a linear path, (ii) an anode plate, a cathode A pallet transport mechanism that transports plates, separators or laminates on a pallet and transports them along a linear path, or (iii) a turntable (rotary table) that transports anode plates, cathode plates, separators or laminates along a circular path. ) Etc. can be used.

In the above-described apparatus for manufacturing a stacked battery, the anode plate supply unit, the cathode plate supply unit, and the separator supply unit each include a drawer member for extracting a roll-shaped anode plate material, a cathode plate material, or a separator material; A cutting member for producing an anode plate, a cathode plate or a separator by cutting the extracted anode plate material, cathode plate material or separator material by a predetermined length from the tip thereof, and an anode plate being pulled out by a drawer member Material, a resistance member that imparts resistance to the movement of the cathode plate material or the separator material, and an anode plate,
Preferably, a transfer member for transferring the cathode plate or the separator to a predetermined portion on the transport mechanism is provided. Furthermore, it is preferable that the anode plate supply unit and the cathode plate supply unit each include a cutout member that cuts out a part of the anode plate material or the cathode plate material to form a lead portion of the anode plate or the cathode plate. . In addition, without providing such a notch member, with a cutting member,
The anode plate material or the cathode plate material may be cut out into a predetermined shape (the shape of the anode plate or the cathode plate itself) (notched entirely) to produce an anode plate or a cathode plate having a lead portion. Good.

Here, as the drawer member, for example,
A material having a structure in which the vicinity of the tip of the anode plate material, the cathode plate material or the separator material is suctioned by vacuum suction and then pulled forward can be used. As the cutting member, for example, a push-cut type cutter for cutting an anode plate material, a cathode plate material or a separator material, a rotary cutter for cutting with a rotary blade, or the like can be used. As the resistance member, a tension roller that contacts the anode plate material, the cathode plate material, or the separator material while rotating and imparts resistance to the movement thereof, and slides and contacts the anode plate material, the cathode plate material, or the separator material. A slider or the like that gives resistance to these movements can be used. As the notch member, for example, a push-cut cutter that cuts out a part of the anode plate material or the cathode plate material by push cutting, a rotary cutter that cuts out a part of the anode plate material or the cathode plate material with a rotary blade, or the like can be used. it can.

In the above-described apparatus for manufacturing a stacked battery, the defoaming mechanism includes, for example, a stacked member pressing member for holding and fixing an end of the upper surface of the stacked member on the transport mechanism, and a pressing member for pressing the upper surface of the stacked member. A device including a defoaming roller that rotates while moving or a sliding defoaming slider can be used. In addition, what just presses the upper surface of a laminated body may be used.

In the above-described apparatus for manufacturing a stacked battery, a plurality of anode plates, a plurality of cathode plates, and a plurality of separators are arranged such that one separator is sandwiched between each anode plate and each cathode plate. A stacked body having a stacked structure (hereinafter, referred to as “multi-layered stacked body” for convenience) can be manufactured. When a stacked battery is manufactured using such a multilayer stacked body, each stacked battery is constituted by a single multilayer stacked body. In addition, you may arrange | position a separator on the upper surface and lower surface of such a multilayer laminated body, respectively.

Also, a laminate having a laminated structure in which one separator is interposed between one anode plate and one cathode plate (hereinafter referred to as “three-layer laminate” for convenience) is also manufactured. Can be. Such three-layer laminates include a right-handed type and a left-handed type, depending on whether the lead portions of the anode plate or the cathode plate are formed on the right side or on the left side. When a stacked battery is manufactured using such a three-layer stack, a right-handed three-layered stack and a left-handed three-layered stack are alternated according to the number of electrodes required. To be used. In this case, the three-layer laminates adjacent to each other are connected (laminated) such that the anode plates or the cathode plates are in contact with each other (the anode plate and the cathode plate are not in contact with each other).

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be specifically described below. In the following convenience shape, the figures of the accompanying (except 8) good in, "rear" X ₁ -X ₂ as viewed in the direction X ₁ side and the X ₂ side, respectively, and the "front", Y ₁ -Y
Y ₁ side and the Y ₂ side, respectively, as seen in the _two directions is referred to as "left" and "right", as viewed in the Z ₁ -Z ₂ direction Z ₁ side and the Z ₂ side to the fact that each "lower" and "upper" I do.

As shown in FIG. 1, a stacked battery manufacturing apparatus M1 for manufacturing a stacked battery using a multilayer stack according to the present invention includes various stacked thin plates (ie, an anode plate, a cathode plate, and a separator). Or a belt conveyor 1 (transporting mechanism) for transporting these laminates (workpieces or intermediates of the laminate) forward along a linear path, and various laminated thin plates from various strip-shaped materials wound in a roll shape. A laminate forming mechanism 2 for producing and transferring (arranging) these to a predetermined portion on the belt conveyor 1 to form a laminate, and a drying mechanism 3 for drying the laminate are provided. Here, the drying mechanism 3 may be omitted if not particularly necessary. In addition,
In the following, various laminated thin plates or a laminate thereof conveyed by the belt conveyor 1 will be referred to as “work”.

In the belt conveyor 1, a steel belt 6 is wound around a driving pulley 4 and a driven pulley 5, and as the driving pulley 4 or the driven pulley 5 rotates, the steel belt 6 is placed on an upper flat portion. The vehicle travels forward, and travels backward in the lower flat portion. The steel belt 6 is provided with work suction holes 7 for vacuum suction of the work everywhere. The drive pulley 4 is a drive belt 8 (or a chain)
, And is rotationally driven by the base machine index 9. The base machine index 9 is driven to rotate by a base machine drive motor 11 via a motor belt 10 and the like.

The laminate forming mechanism 2 includes a separator supply section 12, an anode plate / separator supply section 13 (including an anode plate supply section and a separator supply section), and a cathode plate / separator supply section 14 (a cathode plate supply section). And a separator supply section). Although not shown, a plurality of anode plate / separator supply units 13 and cathode plate / separator supply units 14 are provided in accordance with the required number of electrodes (only one is shown in FIG. 1). ing.).

In the separator supply section 12, a thin strip-shaped separator material 15 wound in a roll shape is turned rightward by a separator material extracting member (not shown, but similar to the separator material extracting member 44 in FIG. 2). After being pulled out (after being pulled out), a separator cutter (not shown, but similar to the separator cutter 45 in FIG. 2) extends a predetermined length from the tip (right end) thereof (hereinafter, this is referred to as the separator cutter 45 in FIG. 2). The lower end separator 16 is manufactured by being cut at a position shifted to the left by “cut length”. Then, the lower end separator 16 is transferred to a predetermined portion on the steel belt 6 of the belt conveyor 1 by the separator transfer unit 17 (separator transfer member). The cutting length is set to be equal to the width of the lower end separator 16 (which is the same as the width of the anode plate separator, the cathode plate separator, the anode plate and the cathode plate described later).

In the anode plate / separator supply section 13, a thin strip-shaped separator material 18 wound in a roll shape is used.
Is drawn rightward by the separator material pullout member 44 (see FIG. 2), and then the separator cutter 45
2 (see FIG. 2), it is cut at a position shifted to the left by the cutting length from the front end (right end), and the anode plate separator 19 is manufactured. At the same time, the thin strip-shaped anode plate material 21 wound in a roll shape is drawn rightward by the anode plate material pullout member 51 (see FIG. 2), and then is drawn by the anode plate cutter 53 (see FIG. 2). The anode plate 22 is cut at a position closer to the left side by the cutting length from the tip (right end). As described later, a part of the anode plate material 21 is cut out by an anode plate material notch cutter 52 (see FIG. 2) to form an anode lead portion.

Thus, the anode plate 22 is an anode plate / separator transfer unit 20 (anode plate / separator transfer member).
Is transferred (attached) to a predetermined portion on the steel belt 6, that is, onto the lower end separator 16 disposed on the steel belt 6 so as to be exactly overlapped therewith (however, the anode lead portion does not overlap). Is done. Thereafter, the anode plate separator 19 is further moved by the anode plate / separator transfer unit 20 at a predetermined position on the steel belt 6, that is, on the steel belt 6 with the lower end separator 16 interposed therebetween. Is transferred (attached) so as to overlap (but not overlap with the anode lead portion).

In the cathode plate / separator supply section 14, a thin strip-shaped separator material 23 wound in a roll shape is used.
Is a separator material pull-out member (not shown,
After being pulled out to the right by the separator material pullout member 44 in FIG. 2, the above-described cutting is performed from the tip (right end) thereof by a separator cutter (not shown, but similar to the separator cutter 45 in FIG. 2). It is cut at the position shifted to the left by the length, and the cathode plate separator 2
4 is produced. At the same time, a thin strip-shaped cathode plate material 26 wound in a roll shape is pulled out rightward by a cathode plate material draw-out member (not shown, but similar to the anode plate material draw-out member 51 in FIG. 2). After that, it is cut by a cathode plate cutter (not shown, but similar to the anode plate cutter 53 in FIG. 2) at a position shifted leftward from the tip end (right end) by the cutting length, and the cathode plate is cut. 27 are produced. The cathode plate material 26 is the same as the anode plate material 21.
In order to form the cathode lead portion, a notch cutter (not shown, but notch cutter 5 in FIG.
2) is cut out.

Thus, the cathode plate 27 is a cathode plate / separator transfer unit 25 (a cathode plate / separator transfer member).
As a result, the lower end separator 16 and the anode plate 22 are placed on a predetermined portion on the steel belt 6, that is, on the steel belt 6.
Are transferred (attached) onto the anode plate separator 19 disposed so as to overlap with the anode plate separator 19 (however, the cathode lead portion does not overlap). Thereafter, the cathode plate separator 24 is further placed at a predetermined position on the steel belt 6 by the cathode plate / separator transfer unit 25, that is, the lower end separator 16, the anode plate 22, and the anode plate separator 19 on the steel belt 6. Are transferred (attached) onto the cathode plate 27 arranged via the substrate so as to overlap with the cathode plate 27 (but not to overlap with the cathode lead portion).
The lower separator 16, the anode plate separator 19, and the cathode plate separator 24 have the same shape.

In the stack type battery manufacturing apparatus M1, the upper surface of each work placed on the steel belt 6 of the belt conveyor 1, that is, each separator 16 is in the process of forming the stack by the stack forming mechanism 2. , 19, 24,
An electrolyte application unit (electrolyte application mechanism) for applying an electrolyte to the upper surface of the anode plate 22 or the cathode plate 27 is provided. Therefore, the electrolytic solution is held between the laminated thin plates of the work.

Specifically, a first electrolytic solution applying unit 29 for applying the electrolytic solution in the first electrolytic solution tray 28 to the upper surface of the lower separator 16 is disposed at a position corresponding to the separator supply section 12. . At a position corresponding to the anode plate / separator supply unit 13, a second electrolyte application unit 31 for applying the electrolyte in the second electrolyte tray 30 to the upper surface of the anode plate 22 is provided (note that the second electrolyte application unit 31 is also provided). Alternatively, the electrolytic solution may be applied also to the upper surface of the anode plate separator 19). Further, the cathode plate / separator supply unit 14
At the upper surface of the anode plate separator 19 and the upper surface of the cathode plate 27, the third electrolyte tray 32
A third electrolytic solution applying unit 33 for applying the electrolytic solution therein is provided (the electrolytic solution may be applied also to the upper surface of the cathode plate separator 24).

Further, in the stacked battery manufacturing apparatus M1, while the stacked body forming mechanism 2 is forming the stacked body, the upper surface of the work placed on the steel belt 6 of the belt conveyor 1 is pressed, and A defoaming mechanism for removing bubbles in the electrolyte in the work is provided. Specifically, the upper surface of the work, that is, the upper surface of the anode plate separator 19, is positioned between the anode plate / separator supply unit 13 and the cathode plate / separator supply unit 14 when viewed in the front-rear direction. 4), a first defoaming mechanism 34 for removing bubbles in the electrolytic solution in the work is provided. Here, the defoaming roller 64 of the first defoaming mechanism 34 rotates rightward when pressed (during defoaming). Further, the upper surface of the work, that is, the upper surface of the cathode plate separator 24, is provided in front of the cathode plate / separator supply unit 14 (intermediate position with the second anode plate / separator supply unit not shown) when viewed in the front-rear direction. Is depressed by a defoaming roller to remove a bubble in the electrolytic solution in the work. The defoaming roller of the second defoaming mechanism 35 rotates to the left when pressed (during defoaming).

Here, each of the defoaming mechanisms 34 and 35 is driven by a corresponding defoaming roller driving cam 37 attached to a shaft 36 which is rotationally driven by the base machine index 9. I have.
The shaft 36 is rotatably supported by a plurality of bearings 38.

Hereinafter, the structure and function of the anode plate / separator supply unit 13 will be described in more detail with reference to FIG.
In this anode plate / separator supply section 13,
The anode plate supply system is located directly above the separator supply system. As shown in FIG. 2, in the separator supply system of the anode plate / separator supply unit 13, the roll-shaped separator material 18 held in the separator material magazine 40 is drawn rightward to form a linear band. The separator material 18 extends rightward through a gap between the upper separator material guide 41 and the lower separator material guide 42, and its tip (right end) is located slightly to the left of the belt conveyor 1. I have. Note that the lower separator material guide 42 is partially cut off in the middle, and the cut out portion comes into contact with the lower surface of the separator material 18 to provide an appropriate resistance to its rightward movement ( A tension roller 43 for separator material (which creates tension in the separator material 18) is provided.

In the vicinity of the distal end of the separator material 18 extending rightward in a linear band shape, a separator material pullout member 44, a separator cutter 45 (cutting member), and a separator material fixing member 46 are provided. Here, the separator material pullout member 44 is indicated by a virtual line 44 'after vacuum-adsorbing the vicinity of the front end of the separator material 18 in a state where the front end of the separator material 18 is located slightly to the left of the separator cutter 45. Move right to the position. Thereby, the separator material 18 is pulled out to the right by the width of the anode plate separator 19 (that is, the width of the work or the laminate).

Next, the separator material fixing member 46 fixes the vicinity of the distal end of the separator material 18 pulled out to the right by vacuum suction. Subsequently, the separator material pullout member 44 moves leftward and returns to the original position slightly to the left of the separator cutter 45. And
The separator cutter 45 cuts the separator material 18 at the position on the left side of the separator width by the separator width, whereby the anode plate separator 19 is manufactured.

Further, in the anode plate supply system of the anode plate / separator supply section 13, the roll-shaped anode plate material 21 held in the anode plate material magazine 47 is drawn rightward to form a linear band. Anode plate material 2
1 extends rightward through a gap between the upper anode plate material guide 48 and the lower anode plate material guide 49, and the front end (right end) is the front end (right end) of the separator material 18. It is located slightly to the left. Note that the upper anode plate material guide 48 is partially cut off in the middle, and the cutout portion comes into contact with the upper surface of the anode plate material 21 to provide an appropriate resistance to its rightward movement. A tension roller 50 for the anode plate material (which causes a tension in the anode plate material 21) is provided.

Then, near the front end of the anode plate material 21 extending rightward in a linear band shape, the anode plate material drawing member 5 is provided.
1, an anode plate material notch cutter 52 (notch member), an anode plate cutter 53 (cutting member), and an anode plate material fixing member 54 are provided. Here, the anode plate material notch cutter 5
No. 2 forms a notch in a predetermined portion of the anode plate material 21 in order to form an anode lead (tab) on the anode plate 22.

More specifically, as shown in FIG. 3 (a), the anode plate material notch cutter 52 cuts out one edge of the anode plate material 21 in the width direction to form a substantially trapezoidal notch 60. To form As a result, the anode lead portion 61 is
Is formed. As shown in FIG. 3B, the anode lead portions 61a and 61a are symmetrical with respect to the center line.
In the case of manufacturing two types of anode plates on which b is formed, that is, a right-handed anode plate 22a and a left-handed anode plate 22b, one anode plate material notch cutter 52 'is used to simultaneously produce two anode plates.
The notch 60 is formed in each of the two anode plate materials 21a and 21b.
a, 60b can be formed.

The anode plate material withdrawing member 51 is
With the tip of the anode plate material 21 positioned slightly to the left of the anode plate cutter 53, the vicinity of the tip of the anode plate material 21 is vacuum-adsorbed and then moved rightward to the position indicated by the virtual line 51 '. As a result, the anode plate material 21 is drawn rightward by the width of the anode plate 22 (that is, the width of the work or the laminate).

Next, the anode plate material fixing member 54 fixes the vicinity of the front end of the anode plate material 21 pulled out to the right by vacuum suction. Subsequently, the anode plate material pullout member 51 moves leftward and returns to the original position slightly to the left of the anode plate cutter 53. And the anode plate cutter 5
3 cuts the anode plate material 21 at a position on the left side from the tip end by the width of the anode plate, whereby the anode plate 22 having the anode lead portion 61 (see FIG. 3A) is manufactured.

The anode plate 22 manufactured in this manner is
After the vacuum suction by the anode plate material fixing member 54 is released, the anode plate / separator transfer unit 20 moves the steel plate 6 to a predetermined position on the steel belt 6 of the belt conveyor 1.
That is, it is transferred (attached) onto the lower end separator 16 arranged on the steel belt 6 so as to be exactly overlapped therewith (however, the anode lead portion projects without overlapping). In FIG. 2, L ₁ indicates a moving path of the anode plate / separator transfer unit 20.

Thereafter, after the vacuum separation of the anode plate separator 19 by the separator separator material fixing member 46 is released, the anode plate / separator transfer unit 20 moves the anode plate separator 19 to a predetermined position on the steel belt 6, The anode plate 22 is transferred (attached) onto the anode plate 22 disposed on the belt 6 with the lower end separator 16 interposed therebetween so as to be exactly overlapped therewith (but not overlapped with the anode lead portion).

Here, on the lower surface of the substrate 56 of the belt conveyor 1, there is provided a decompression chamber 57 evacuated by a vacuum pump or the like (not shown). In addition, the substrate 56 is provided with a hole penetrating vertically therethrough. For this reason,
A vacuum in the decompression chamber 57 acts on the lower surface of the work on the steel belt 6 via the work suction hole 7 (see FIG. 1) of the steel belt 6 and the hole of the substrate 56, and the work is made of steel. It is adsorbed on the belt 6 and its position is fixed.

The structure and function of the cathode plate / separator supply unit 14 are not the anode plate material 21 but the cathode plate material 26.
This is almost the same as that of the anode plate / separator supply unit 13 except that the use of the anode plate and the anode lead unit 61 is symmetrical with respect to the center line with respect to the formation position of the anode lead unit 61. In addition, the structure of the separator supply unit 12 includes an anode plate
This is almost the same as that of the anode plate separator supply system of the separator supply section 13.

Hereinafter, the structure and function of the second electrolytic solution applying unit 31 will be described in more detail. The second electrolytic liquid coating unit 31, the path indicated by L ₂ are adapted to be able to reciprocate, a number of pins 59 on its lower end face (or needle) is mounted densely. Thus, the second electrolytic solution applying unit 31 first immerses the pins 59 in the electrolytic solution 58 held in the second electrolytic solution tray 30 and causes the electrolytic solution 58 to adhere to the space between the pins 59. Then, after the anode plate 22 is transferred onto the steel belt 6, the second electrolytic solution application unit 31 moves above the work on the steel belt 6, and the lower end of the pin 59 is moved to the upper surface of the work, that is, the anode plate. 22 against the upper surface. As a result, the electrolyte 58 that has adhered to the space between the pins 59 adheres (applies) almost uniformly to the upper surface of the anode plate 22. After this, the second electrolytic solution applying unit 3
1 rises. In addition, the electrolyte was used for the anode plate separator 1.
9 may be applied.

The means for adhering the electrolytic solution of the second electrolytic solution application unit 31 is not limited to the pin 59, but may be any means as long as the electrolytic solution can be adhered (for example, sponge). , Fiber, brush etc.).
The structure and function of the first electrolytic solution applying unit 29 or the third electrolytic solution applying unit 33 is such that the electrolytic solution is not supplied to the anode plate 22 but to the lower end separator 16 or the anode plate separator 19 and the cathode plate 27 (cathode plate 27). Of the second electrolytic solution applying unit 31 except that the second electrolytic solution applying unit 31 is applied.

Hereinafter, the first defoaming mechanism 3 will be described with reference to FIG.
4 will be described in more detail. As shown in FIG. 4, the first defoaming mechanism 34 includes a work holding member 63 for holding and fixing one end of the work, and a bubble in the electrolytic solution in the work by rotating and moving while pressing the upper surface of the work. And a defoaming roller 64 (pressing roller) for removing air. Here, the work holding member 63 can move in the vertical direction. Further, the defoaming roller 64 can be moved in the vertical and horizontal directions.

Thus, in the first defoaming mechanism 34,
When work is carried to the cathode plate separator supply unit 14 side from the anode plate separator supply portion 13 side is positioned directly below them, the workpiece holding member 63 and the defoaming roller 64, the state shown in P ₁ It is lowered from the state shown in P _2. In the state shown in this P _2, the workpiece holding member 63 presses the left end of the workpiece downward, to fix the position of the workpiece. The defoaming roller 64 appropriately presses the upper surface of the work, that is, the upper surface of the anode plate separator 19 slightly to the right of the work pressing member 63.

Next, defoaming roller 64, while pressing the upper surface of the anode plate separator 19 is rotated moving to the right end portion of the workpiece to the right in the state shown in P _3. At this time, bubbles in the electrolytic solution in the work, that is, bubbles in the electrolytic solution held between the anode plate separator 19 and the anode plate 22, and between the anode plate 22 and the lower end separator 16 are held. The bubbles in the electrolyte solution are removed.

[0043] Then, while returning the workpiece holding member 63 is raised to the state shown by P _1, defoaming roller 64
A state shown by P ₄ are raises. Thereafter, defoaming roller 64 returns to the state shown by P ₁ is moved to the left.

The structure and function of the second defoaming mechanism 35 are that the defoaming process is performed on the work on which the cathode plate separator 24 is disposed on the uppermost layer, and that the work holding member is provided at the right end of the work. Is substantially the same as that of the first defoaming mechanism 34 except that the defoaming roller is rotated to the left and presses the upper surface of the workpiece while the pressure is fixed.

The reason why the position where the workpiece is pressed and fixed and the direction of rotation of the defoaming roller are reversed between the first defoaming mechanism 34 and the second defoaming mechanism 35 is that the performance of removing bubbles is enhanced. That's why. That is, in the first defoaming mechanism 34,
Immediately below the work holding member 63, that is, in the vicinity of the left end of the work, since the defoaming action by the defoaming roller 64 does not occur, bubbles may remain. On the other hand, in the second defoaming mechanism 35, bubbles may remain near the right end of the work. However, if the pressing and fixing positions of the defoaming mechanisms 34 and 35 or the direction of rotation of the defoaming rollers are alternately reversed, each defoaming action extends to several layers (two to three layers) below the defoaming action. The defoaming process is completely performed in both the part and the right end.

By the way, in this stacked battery manufacturing apparatus M1, surplus electrolyte or unnecessary electrolyte adheres to the upper surface of the work. Therefore, it is preferable to provide such a liquid absorbing device for removing the electrolytic solution on the surface of the work as necessary in the belt conveyor 1 as needed. FIG. 5 shows an example of such a liquid absorbing device.

As shown in FIG. 5, the liquid suction device 66 includes a first film roller 67 and a second film roller 6.
8, a first idle pulley 69 and a second idle pulley 70, and a liquid absorbing film 7 capable of absorbing an electrolytic solution.
1 is provided. Here, the liquid absorbing film 71 is
The second film roller 68 is intermittently and intermittently transmitted from the first film roller 67 via the idle pulleys 69 and 70.
It is designed to be wound up. The material of the liquid absorbing film 71 may be any material as long as it can absorb the electrolytic solution. For example, a blotting paper, a cloth, or the like can be used. Thus, the liquid absorbing device 66 is lowered when the work is located directly below the liquid suction device 66, and moves the liquid absorbing film 71 between the two idle pulleys 69 and 70 to the upper surface of the work (in the example shown in FIG. 5, for the anode plate). (The upper surface of the separator 19) to absorb and remove the electrolyte adhering to the upper surface of the work. Thereafter, the liquid suction device 66 moves up.

In the stacked battery manufacturing apparatus M1, since an electrolytic solution, foreign matter, and the like adhere to the surface of the steel belt 6, it is preferable to provide a belt cleaning mechanism for cleaning the steel belt 6 on the belt conveyor 1. . In FIG.
An example of such a belt cleaning mechanism will be described.

As shown in FIG. 6, the belt cleaning mechanism substantially includes first to third bypass rollers 72 to 74 for partially bypassing the steel belt 6 to a low position, and a belt cleaning liquid. And a cleaning liquid tank 75 to be used. Then, the portion of the steel belt 6 that is detoured to a low position is immersed in the belt cleaning liquid stored in the cleaning liquid tank 75 and is cleaned by the belt cleaning liquid.

Thus, a multilayer laminate 77 as shown in FIGS. 7A and 7B, for example, is manufactured by the multilayer battery manufacturing apparatus M1. As shown in FIGS. 7A and 7B, the multilayer laminate 77 includes a plurality of anodes between a lowermost separator (lower separator 16) and an uppermost separator (cathode plate separator 24). The plate 22, the plurality of cathode plates 27, and the plurality of separators 19, 24
1 and one separator 1 between each cathode plate 27
It has a laminated structure in which the components 9 and 24 are sandwiched. Here, each anode plate 22 has an anode lead 6
1 is formed, and a cathode lead portion 79 is formed on each cathode plate 27. When a multilayer battery is manufactured using this multilayer stack 77, each multilayer battery is a single multilayer stack 77.
It consists of. The lowermost layer separator (lower end separator 16) and the uppermost layer separator (cathode plate separator 24) may not be provided unless necessary.

In the embodiment shown in FIGS. 1 to 7, as described above, the belt conveyer 1 that conveys a work along a linear path is used as the work conveying means. However, the work conveying means is not limited to such a belt conveyor 1. For example, as shown in FIG.
As the work transfer means, a turntable 80 which rotates around the center O of the table in the direction indicated by the arrow T and transfers the work along a circular path may be used. In this case, the separator supply unit 12, the anode plate / separator supply unit 13, the cathode plate / separator supply unit 14, the electrolyte application unit 2
The 9, 31, 33 and defoaming mechanisms 34, 35 are arranged in a circle. Note that the multilayer laminate 77 is provided in the take-out section 8.
At step 1, it is taken out of the turntable 80. Although not shown in the drawings, a pallet transport mechanism that transports the workpiece on a pallet and transports the workpiece along a linear path may be used as the workpiece transport means.

Hereinafter, a stacked battery manufacturing apparatus for manufacturing a stacked battery using a three-layer stacked body having a stacked structure in which one separator is sandwiched between one anode plate and one cathode plate will be described. explain. As shown in FIG. 9, a stacked battery manufacturing apparatus M for manufacturing a stacked battery using a three-layer stacked body
2, in order from a rear side to a front side around a belt conveyor 82 that conveys a work in a linear path, an anode plate supply unit 83, a separator supply unit 84, a first electrolytic solution application unit 85, A first defoaming mechanism 86, a cathode plate supply section 87, a second electrolytic solution applying unit 88, and a second defoaming mechanism 89 are provided. Each of these devices is basically the same as the corresponding device in the stacked battery manufacturing apparatus M1 shown in FIGS.

When a plurality of three-layered laminates are laminated to produce a laminated battery, the same number of right-handed three-layered laminates and left-handed three-layered laminates are required. In the manufacturing apparatus M2, the anode plate supply unit 83, the separator supply unit 84, and the cathode plate supply unit 87 are respectively for producing a right-handed three-layer laminate and for producing a left-hand three-layer laminate. It is composed of

That is, the anode plate supply section 83 is
Anode plate supply unit 83 for supplying anode plate 22a for layer laminate
a and an anode plate supply section 83b for supplying an anode plate 22b for a left-handed three-layer laminate. The separator supply unit 84 supplies a separator 19a for a right-handed three-layer laminate, and a separator supply unit 84b that supplies a separator 19b for a left-handed three-layer laminate.
It is composed of The cathode plate supply unit 87 supplies the cathode plate 27a for the right-handed three-layer laminate.
And a cathode plate supply unit 87b for supplying a cathode plate 27b for a left-handed three-layer laminate. Each anode plate 2
2a and 22b have anode lead portions 61a and 6b, respectively.
1b is formed. In addition, each cathode plate 27a, 27b
Are formed with cathode lead portions 79a and 79b, respectively.

Thus, by using the stacked battery manufacturing apparatus M2, for example, a right-handed three-layer stack as shown in FIGS. 10A and 10B and a left-handed stack as shown in FIGS. A mold three-layer laminate is manufactured. When a stacked battery is manufactured using such a three-layer laminate, a right-handed three-layered laminate and a left-handed three-layered laminate are alternately laminated in a plurality according to the number of electrodes required. Used. In this case, the three-layer laminates adjacent to each other are connected so that the anode plates or the cathode plates contact each other.

In the stacked battery manufacturing apparatus M2 shown in FIG.
The belt conveyor 82 is of a one-lane type that transports the work in one line. However, a multi-lane type belt conveyor may be used in order to enhance productivity. For example, as shown in FIG. 11, a three-lane type belt conveyor 9 including first to third three lanes 90a, 90b, and 90c and capable of transporting works in three rows.
0 may be used as the stacked battery manufacturing apparatus M3.

As shown in FIG. 12, three-lane first to third belt conveyors 93 to 95 may be used. In this stacked battery manufacturing apparatus M4,
Each of the first belt conveyor 93 and the second belt conveyor 94 conveys the work forward in three rows, and the third belt conveyor 95 conveys the work backward in three rows.

Thus, in the stack type battery manufacturing apparatus M 4, the second belt conveyor 94 is provided by the anode plate supply section 83.
Are supplied to the anode plates 22a and 22b (see FIG. 9), and an electrolyte solution is applied to the upper surfaces of the anode plates 22a and 22b by the electrolyte solution application unit 96. And the anode plate 22a,
An electrolytic solution is again applied to the upper surface of 22b by another electrolytic solution application unit 98.

On the other hand, the cathode plates 27a and 27b (see FIG. 9) are supplied to the first belt conveyor 93 by the cathode plate supply unit 87, and the cathode plate 27 is supplied by the electrolytic solution application unit 97.
Electrolyte is applied to the upper surfaces of a and 27b. And
An electrolytic solution is again applied to the upper surfaces of the cathode plates 27a and 27b by another electrolytic solution applying unit 99. Thereafter, separators 19a and 19b are arranged (attached) on cathode plates 27a and 27b by separator supply unit 84.

The work in which the separators 19a, 19b are disposed (attached) on the cathode plates 27a, 27b is turned upside down (upside down) by the first upside down transfer apparatus 100, It is arranged (attached) on the anode plates 22a and 22b on the two-belt conveyor 94 to form a three-layer laminate. This three-layer laminate is a second belt conveyor 9
4, the defoaming process is performed by the defoaming mechanism 101, and the electrolyte adhering to the upper surface (cathode plate surface) is removed by the liquid absorbing device 66.

After that, the three-layer laminate on the second belt conveyor 94 is turned upside down by the second upside down transfer device 102 and is placed on the second belt conveyor 94 again. Further, by another liquid absorbing device 66, 3
The electrolyte adhering to the upper surface (anode plate surface) of the layered product is removed. Then, the electrolyte solution on both sides was removed 3
The layer stack is transferred to the third belt conveyor 95 by the transfer device 103, and thereafter, is conveyed backward by the third belt conveyor 95, and is taken out from the rear end of the third belt conveyor 95. Although not shown, the stacked battery manufacturing apparatus M4 is provided with a belt cleaning mechanism shown in FIG.

[Brief description of the drawings]

FIG. 1 is a perspective view of a stacked battery manufacturing apparatus for manufacturing a stacked battery using a multilayer stacked body.

FIG. 2 is a schematic diagram showing a schematic elevation structure of a belt conveyor, an anode plate / separator supply unit, and a second electrolytic solution application unit.

FIGS. 3A and 3B are plan views showing the vicinity of the tip of the anode plate material, respectively, showing a method of forming a notch in the anode plate.

FIG. 4 is a schematic diagram showing a schematic elevation structure of a belt conveyor and a first defoaming mechanism.

FIG. 5 is a schematic view showing a schematic elevation structure of the liquid absorbing device.

FIG. 6 is a schematic view showing a schematic elevation structure of a belt cleaning mechanism of a belt conveyor.

FIG. 7A is a plan view of a multilayer laminate, and FIG.
FIG. 2 is a sectional view taken along line AA of the multilayer laminate shown in FIG.

FIG. 8 is a schematic diagram showing a schematic plan structure of a stacked battery manufacturing apparatus using a turntable as a work transfer means.

FIG. 9 is a schematic diagram showing a schematic plan structure of a stacked battery manufacturing apparatus for manufacturing a stacked battery using a three-layer stacked body.

10A is a plan view of a right-handed three-layer laminate, FIG. 10B is a cross-sectional view taken along line BB of the three-layer laminate shown in FIG. 10A, and FIG. It is a plan view of a multilayer laminate,
(D) is a sectional view taken along line CC of the three-layer laminate shown in (c).

FIG. 11 is a schematic diagram showing a schematic plan structure of a stacked battery manufacturing apparatus for manufacturing a stacked battery using a three-layer stack including one belt conveyor of a three-lane system.

FIG. 12 is a schematic diagram illustrating a schematic plan structure of a stacked battery manufacturing apparatus for manufacturing a stacked battery using a three-layer stack including three belt conveyors of a three-lane system.

[Explanation of symbols]

M1 to M4: stacked battery manufacturing apparatus, 1: belt conveyor, 2: stacked body forming mechanism, 3, drying mechanism, 4, driving pulley, 5, driven pulley, 6, steel belt, 7 work suction hole, 8 Drive belt, 9 Base machine index, 10 Motor belt, 11 Base machine drive motor, 12 Separator supply unit, 13 Anode plate / separator supply unit, 14 Cathode plate / separator supply unit, 15
... separator material, 16 ... lower end separator, 17 ... separator transfer unit, 18 ... separator material, 19 ... anode plate separator, 20 ... anode plate / separator transfer unit, 21 ... anode plate material, 22 ... anode plate, 23 ... separator material, 24 ... cathode plate separator, 25 ... cathode plate
Separator transfer unit, 26: cathode plate material, 27: cathode plate, 28: first electrolyte solution tray, 29: first electrolyte solution application unit, 30: second electrolyte solution tray, 31: second electrolyte solution application unit, 32: third electrolyte solution tray, 33: third electrolyte solution application unit, 34: first defoaming mechanism, 35: second defoaming mechanism, 36: shaft, 37: cam for driving a defoaming roller, 38: bearing part , 40 ... separator material magazine, 4
DESCRIPTION OF SYMBOLS 1 ... Upper separator material guide, 42 ... Lower separator material guide, 43 ... Separator material tension roller, 44 ... Separator material pull-out member, 45 ... Separator cutter, 46 ... Separator material fixing member, 47 ...
Anode plate material magazine, 48 ... Upper anode plate material guide, 4
9: Lower electrode plate material guide, 50: Anode plate material tension roller, 51: Anode plate material pull-out member, 52: Anode plate material notch cutter, 53: Anode plate cutter, 54 ...
Anode plate material fixing member, 56: substrate, 57: decompression chamber, 58
... Electrolyte, 59 ... Pin, 60 ... Notch, 61 ... Anode lead, 63 ... Work holding member, 64 ... Defoaming roller, 6
6 ... Liquid absorbing device, 67 ... First film roller, 68 ... Second
Film roller, 69 first idle pulley, 70 second idle pulley, 71 liquid absorbing film, 72 first bypass roller, 73 second bypass roller, 74 third bypass roller, 75 cleaning liquid tank, 77 ... multilayer laminate, 79 ... cathode lead part, 80 ... turntable, 81 ... take-out part, 8
2: belt conveyor 83: anode plate supply unit 84: separator supply unit 85: first electrolytic solution application unit 86:
First defoaming mechanism, 87: cathode plate supply unit, 88, second electrolytic solution application unit, 89, second defoaming mechanism, 90, belt conveyor, 93, first belt conveyor, 94, second belt conveyor, 95 ... third belt conveyor, 96 ... electrolyte application unit, 97 ... electrolyte application unit, 98 ... electrolyte application unit, 99 ... electrolyte application unit, 100 ... first
Front / reverse inversion transfer device, 101: defoaming mechanism, 102: second front / back inversion transfer device, 103: transfer device.

Continuation of the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) H01M 6/02 H01M 10/04

Claims (10)

(57) [Claims] An apparatus for manufacturing a stacked battery in which an anode plate and a cathode plate are stacked with a separator interposed therebetween, wherein a strip-shaped anode plate material is cut by a predetermined length from a tip end thereof to form an anode. An anode plate supply unit for manufacturing a plate and transferring the anode plate to a predetermined portion on a transport mechanism, and a cathode plate manufactured by cutting a strip-shaped cathode plate material by a predetermined length from the tip thereof. A cathode plate supply unit for transferring the cathode plate to a predetermined position on the transport mechanism, and a separator manufactured by cutting the strip-shaped separator material by a predetermined length from the leading end thereof and placing the separator on the transport mechanism at a predetermined position And a separator supply unit to be transferred to a portion of the laminate, the anode plate, the cathode plate and the separator, the laminate is formed such that the separator is sandwiched between the anode plate and the cathode plate to form a laminate A forming mechanism, and a process in which the laminate forming mechanism forms a laminate. In,
An anode plate, a cathode plate, a separator or an electrolytic solution applying mechanism for applying an electrolytic solution to the upper surface of a laminate thereof, which is disposed on the transport mechanism, and in the process of forming the laminate by the laminate forming mechanism,
Pressing the upper surface of the laminate placed on the transport mechanism,
An apparatus for manufacturing a laminated battery, comprising: a defoaming mechanism for removing bubbles in an electrolyte solution in the laminate. 2. The apparatus according to claim 1, wherein the transport mechanism is a belt conveyor that transports an anode plate, a cathode plate, a separator, or a laminate along a linear path. 3. The stacking die according to claim 1, wherein the transfer mechanism is a pallet transfer mechanism that transfers an anode plate, a cathode plate, a separator, or a laminate on a pallet and transfers the stacked plate along a linear path. Battery manufacturing equipment. 4. The apparatus according to claim 1, wherein the transport mechanism is a turntable that transports an anode plate, a cathode plate, a separator, or a laminate along a circular path. 5. An anode plate supply unit, a cathode plate supply unit, and a separator supply unit, each of which includes a pull-out member that pulls out a roll-shaped anode plate material, a cathode plate material, or a separator material, and a drawn-out anode plate material, A cutting member for producing an anode plate, a cathode plate or a separator by cutting a cathode plate material or a separator material by a predetermined length from the tip thereof,
A resistance member that imparts resistance to the movement of the anode plate material, the cathode plate material, or the separator material drawn by the drawer member, and a transfer member that transfers the anode plate, the cathode plate, or the separator to a predetermined portion on the transport mechanism. The apparatus for manufacturing a stacked battery according to any one of claims 1 to 4, further comprising: 6. The anode plate supply unit and the cathode plate supply unit each include a cutout member that cuts out a part of the anode plate material or the cathode plate material to form a lead portion of the anode plate or the cathode plate. The apparatus for manufacturing a stacked battery according to claim 5, wherein: 7. The anode or cathode plate cutting member cuts the anode plate or cathode plate material into a predetermined shape to produce an anode or cathode plate having a lead portion. The apparatus for manufacturing a stacked battery according to claim 5, wherein: 8. A laminate holding member, wherein the defoaming mechanism presses and fixes an end of the upper surface of the laminate on the transport mechanism, and a defoaming roller which rotates while pressing the upper surface of the laminate. The apparatus for manufacturing a stacked battery according to any one of claims 1 to 7, further comprising: 9. The laminate, wherein a plurality of anode plates, a plurality of cathode plates, and a plurality of separators are arranged such that one separator is sandwiched between each anode plate and each cathode plate. The apparatus for manufacturing a stacked battery according to any one of claims 1 to 8, wherein the apparatus has a stacked structure. 10. The laminate according to claim 1, wherein the laminate has a laminate structure in which one separator is sandwiched between one anode plate and one cathode plate. 1
5. A manufacturing apparatus for a stacked battery according to any one of the above.