JP2023122878A - Device and method for manufacturing laminate electrode body - Google Patents

Abstract

To provide a device and a method for manufacturing a laminate electrode with an excellent productivity.SOLUTION: A device for manufacturing a laminate electrode body 10 includes: an arrangement device 20 for dividing a sheet-like separator 13 into a plurality of flat surface parts 16A, 16B, 16C, 16D, and 16E and arranging the flat surface parts 16A, 16B, 16C, 16D, and 16E on top of one another; a supply device 30 for supplying electrodes 11 and 12 forming the laminate electrode body 10 so that the electrodes 11 and 12 line up along one flat surface part 16A, 16B, 16C, or 16D; and a cutting device 46 for cutting the flat surface parts 16A, 16B, 16C, and 16D between the electrodes 11 and 12 while the flat surface parts 16A, 16B, 16C, and 16D and the electrodes 11 and 12 lining up along the flat surface parts 16A, 16B, 16C, and 16D are laminated.SELECTED DRAWING: Figure 4

Description

The present invention relates to an apparatus and method for manufacturing a laminated electrode body.

Patent Document 1 discloses a technique of manufacturing a laminated electrode assembly for a secondary battery by bending a sheet of separator into a zigzag shape and alternately inserting a positive electrode and a negative electrode into gaps between the separators formed by the bending. It is

JP 2016-103425 A

In the above method, one electrode is inserted into one gap. Therefore, only one laminated electrode assembly is manufactured in one process, resulting in low productivity.

The present disclosure has been completed based on the circumstances as described above, and an object of the present disclosure is to provide a manufacturing apparatus and manufacturing method for a laminated electrode body with high productivity.

The apparatus for manufacturing a laminated electrode body of the present disclosure includes:
an arrangement device that divides a sheet-like separator into a plurality of planar portions and arranges the plurality of planar portions so as to be stacked;
a supply device for supplying electrodes constituting a laminated electrode body so that a plurality of the electrodes are arranged along one of the planar portions;
A cutting device is provided for cutting the planar portion between the electrodes in a state in which the plurality of planar portions and the plurality of electrodes arranged along the planar portions are stacked.

The manufacturing method of the laminated electrode body of the present disclosure includes:
A sheet-like separator is divided into a plurality of planar portions, and the plurality of planar portions are arranged so as to be stacked,
supplying electrodes constituting a laminated electrode body so that a plurality of the electrodes are arranged along one of the planar portions;
In a state in which the plurality of plane portions and the plurality of electrodes arranged along the plane portions are stacked, the plane portions are cut between the electrodes.

According to the present disclosure, since a plurality of electrodes are arranged along one plane portion, it is possible to provide an apparatus and method for manufacturing a laminated electrode body with high productivity.

FIG. 4 is a side view showing a state in which one flat portion is arranged on the negative electrodes arranged on the stacking table in the manufacturing apparatus of Embodiment 1; Plan view of the state of FIG. Side view of a supply device for supplying electrodes so as to line up along a plane part A side view showing a state in which a positive electrode is supplied on the plane portion from the state of FIG. Plan view of FIG. A side view showing a state in which two plane portions are arranged from the state in FIG. A side view showing a state in which a negative electrode is supplied onto the plane portion from the state of FIG. Plan view of FIG. A side view showing a state in which a positive electrode is supplied, two flat portions are arranged, and a negative electrode is supplied from the state of FIG. A side view showing how the separator is cut in a state in which the separator, the negative electrode, and the positive electrode are laminated. A side view showing a state in which the separator is cut from the state of FIG. 10 and separated into a plurality of laminated electrode bodies. FIG. 11 is a side view showing a state in which one flat portion is arranged on the negative electrodes arranged on the stacking table in the manufacturing apparatus of Embodiment 2; A side view showing a state in which one flat portion is separated by cutting the separator from the state shown in FIG. A side view showing a state in which a positive electrode is supplied onto the plane portion from the state of FIG. 13 A side view showing a state in which the flat portion is arranged from the state in FIG. A side view showing a state in which the separator is cut from the state of FIG. 15 and one flat portion is separated. A side view showing how the separator is cut in a state in which the separator, the negative electrode, and the positive electrode are laminated. A side view showing a state in which the separator is cut from the state of FIG. 17 and separated into a plurality of laminated electrode bodies.

A preferred example of the present disclosure will now be presented.
- The arrangement device is a device for manufacturing a laminated electrode body, which forms the plurality of flat portions connected via folded portions by bending the separator in a zigzag shape.
- The arrangement device is a device for manufacturing a laminated electrode assembly that forms the two plane portions connected to one folded portion by pulling in the horizontal direction a part of the separator that is suspended in the vertical direction.
a stretching step of forming two flat portions connected to one folded portion by pulling a part of the separator suspended in the vertical direction in the horizontal direction;
A method for manufacturing a laminated electrode assembly, repeating a supply step of supplying the plurality of electrodes so as to line up along the plane portion.

[Embodiment 1]
A first embodiment embodying the present disclosure will be described with reference to FIGS. 1 to 11. FIG. The present invention is not limited to these examples, but is indicated by the scope of the claims, and includes all modifications within the scope and meaning equivalent to the scope of the claims. In the first embodiment, regarding the front-rear direction, the positive direction of the X-axis in FIGS. 1 to 11 is defined as front. Regarding the left-right direction, the positive direction of the Y-axis in FIGS. 2, 5 and 8 is defined as right. The left-right direction and the width direction are used synonymously. Regarding the vertical direction, the positive direction of the Z axis in FIGS. 1, 3, 4, 6, 7, 9 to 11 is defined as upward.

The manufacturing apparatus of the first embodiment includes a laminated electrode body 10 (FIG. 1), which is formed by alternately laminating a plurality of sheet-shaped negative electrodes 11 and a plurality of sheet-shaped positive electrodes 12 with separators 13 interposed therebetween. 11). The manufacturing apparatus includes a stacking table 15 , an arrangement device 20 , a supply device 30 and a cutting device 46 . The stacking table 15 is for stacking the plurality of negative electrodes 11 , the plurality of positive electrodes 12 and the separators 13 . On the stacking table 15, a plurality of negative electrodes 11 are arranged in a row in the front-rear direction, and a plurality of positive electrodes 12 are arranged in a row in the front-rear direction.

As shown in FIG. 1, the arranging device 20 includes a winding roll 21 on which a flexible long separator 13 is wound, a movable chuck 22, a plurality of movable rollers 23A and 23B, A plurality of deflection rollers 24A, 24B, 24C are provided. The take-up roll 21 is arranged in the upper rear part of the stacking table 15 with its axis directed in the left-right direction. A separator 13 is let out from the take-up roll 21 so as to hang down. A portion of the separator 13 extending downward from the take-up roll 21 is defined as a delivery portion 13D.

The movable chuck 22 is reciprocated in the front-rear direction (horizontal direction) by a drive mechanism (not shown) between an initial position (not shown) and a drawn-out position (see FIGS. 1 and 2) forward of the initial position. It is designed to The moving direction of the movable chuck 22 from the initial position to the pulled-out position is parallel to the direction in which the negative electrodes 11 and the positive electrodes 12 are arranged on the stacking table 15 . The height of the moving path of the movable chuck 22 is slightly above the upper surface of the stacking table 15 . The initial position is a position where the movable chuck 22 can chuck the lower end of the feeding portion 13</b>D of the separator 13 . The drawer position is set at a position forward of the front end of the stacking table 15 .

A plurality of deflection rollers 24A, 24B, and 24C are rotatably provided below the take-up roll 21 . A plurality of deflection rollers 24A, 24B, and 24C are arranged along the front surface of the downward feeding portion 13D of the separator 13 in a vertically spaced manner. Below the winding roll 21, a plurality of movable rollers 23A and 23B are rotatably provided. The plurality of movable rollers 23A, 23B are arranged at a height between the vertically adjacent turning rollers 24A, 24B, 24C. Each of the movable rollers 23A and 23B is driven by a drive mechanism (not shown) to move between a standby position (see FIG. 1) behind the delivery portion 13D of the separator 13 and an arrangement position forward of the standby position (see FIG. 9). It is adapted to reciprocate in the front-rear direction (horizontal direction) between. The moving direction of the movable rollers 23A and 23B between the standby position and the arrangement position is parallel to the direction in which the negative electrode 11 and the positive electrode 12 are arranged on the stacking table 15 . It is set behind the stacking table 15 . The arrangement position is set forward of the stacking table 15 .

As shown in FIGS. 2, 5 and 8, the supply device 30 includes a negative electrode reservoir 31, a positive electrode reservoir 32, a negative electrode supply mechanism 33, a positive electrode supply mechanism 36, a negative electrode and a positive electrode transfer mechanism 43 . The negative electrode reservoir 31 has a box-like shape with an open upper surface, and is arranged behind the stacking table 15 and to the right of the stacking table 15 . A plurality of horizontally oriented negative electrodes 11 are stored in a vertically stacked state in the negative electrode storage section 31 . The positive electrode reservoir 32 has a box-like shape with an open upper surface, and is arranged behind the stacking table 15 and to the left of the stacking table 15 . A plurality of horizontally oriented positive electrodes 12 are stored in the positive electrode storing portion 32 in a vertically stacked state.

The negative electrode supply mechanism 33 is arranged on the right side of the stacking table 15, and is driven by a driving mechanism (not shown) to a preparation position (see FIGS. 1 and 5) separated from the stacking table 15, and a stacking table 15 from the preparation position. and the supply position (see FIG. 8) close to . The negative electrode supply mechanism 33 has one negative electrode support member 34 elongated in the front-rear direction and a plurality of negative electrode holding members 35 . The plurality of negative electrode holding members 35 extend from the negative electrode support member 34 toward the stacking table 15 in a cantilevered manner and are arranged side by side in the front-rear direction. Each negative electrode holding member 35 performs an operation of holding the negative electrode 11 and an operation of releasing the held negative electrode 11 .

The positive electrode supply mechanism 36 is arranged on the left side of the stacking table 15, and is driven by a driving mechanism (not shown) to a preparation position (see FIGS. 2 and 8) separated from the stacking table 15, and to a position where the stacking table 15 is positioned further from the preparation position. and the supply position (see FIG. 5) close to . The positive electrode supply mechanism 36 has one positive electrode support member 37 elongated in the front-rear direction and a plurality of positive electrode holding members 38 . The plurality of positive electrode holding members 38 extend from the positive electrode supporting member 37 toward the stacking table 15 in a cantilevered manner and are arranged side by side in the front-rear direction. The positive electrode holding member 38 performs an operation of holding the positive electrode 12 and an operation of releasing the held positive electrode 12 .

The negative electrode transfer mechanism 40 has a negative electrode movable member 41 driven by a drive mechanism (not shown) and a negative electrode suction cup 42 held by the negative electrode movable member 41 (see FIG. 2). The negative electrode sucker 42 can hold the negative electrode 11 in a sucked state and release the held negative electrode 11 . The negative electrode sucker 42 moves between a position where it holds the negative electrode 11 in the negative electrode reservoir 31 and a position where each holder holds the held negative electrode 11 .

The positive electrode transfer mechanism 43 has a positive electrode movable member 44 driven by a drive mechanism (not shown) and a positive electrode suction cup 45 held by the positive electrode movable member 44 . The positive electrode sucker 45 can hold the positive electrode 12 in a sucked state and release the held positive electrode 12 . The positive electrode sucker 45 moves between a position where the positive electrode 12 is held in the positive electrode storage section 32 and a position where the held positive electrode 12 is held by each holding section.

As shown in FIG. 10 , the cutting device 46 is arranged above the stacking table 15 . The cutting device 46 includes an elevating member 47 driven up and down by a drive mechanism (not shown), and a plurality of cutters 48 projecting downward from the elevating member 47 . The plurality of cutters 48 have cutting blades elongated in the left-right direction, and are spaced apart in the front-rear direction.

Next, the manufacturing process of the laminated electrode body 10 will be described. First, while the negative electrode supply mechanism 33 is in the preparation position, the negative electrode sucker 42 of the negative electrode supply mechanism 33 sucks the negative electrode 11 in the negative electrode reservoir 31, and the negative electrode supply mechanism 33 is held by each negative electrode holding member 35 . After all the negative electrode holding members 35 hold the negative electrodes 11, the negative electrode supply mechanism 33 moves from the preparation position to the supply position, and the plurality of negative electrodes 11 held by the negative electrode holding members 35 , is placed on the upper surface of the stacking table 15 . Since the plurality of negative electrode holding members 35 are arranged so as to line up in the front-rear direction, the plurality of negative electrodes 11 are arranged in the front-rear direction on the upper surface of the stacking table 15 . Before and after this step, the positive electrode 12 is held by the positive electrode supply mechanism 36 in each holding portion of the positive electrode supply mechanism 36 at the preparation position.

Next, the movable chuck 22 grips the lower end of the feeding portion 13D of the separator 13 and horizontally pulls the separator 13 forward while being hooked on the first turning roller 24A at the lowest position. As a result, as shown in FIGS. 1 and 2, one plane portion 16A (hereinafter referred to as first plane portion 16A) extending in the horizontal direction (front-rear direction) is provided above the plurality of negative electrodes 11 on the stacking table 15. is arranged. The first plane portion 16A is a portion of the separator 13 between the movable chuck 22 and the first turning roller 24A. While the movable chuck 22 is disposing the first plane portion 16A, the negative electrode supply mechanism 33 is returned to the preparation position, and the negative electrode 11 is held by the negative electrode holding member 35 .

Next, the positive electrode supply mechanism 36 moves from the preparation position to the supply position, and the plurality of positive electrodes 12 individually held by the plurality of positive electrode holding members 38 are supplied to the upper surface of the first flat portion 16A. be done. Since the plurality of positive electrode holding members 38 are arranged so as to line up in the front-rear direction, the plurality of positive electrodes 12 are also placed so as to line up in the front-rear direction. The plurality of positive electrodes 12 placed on the first plane portion 16A are individually positioned directly above the plurality of negative electrodes 11 on the stacking table 15 (see FIGS. 4 and 5).

After that, the lowermost first movable roller 23A moves from the standby position to the arrangement position. At this time, the first movable roller 23A slips between the first deflection roller 24A and the second deflection roller 24B located second from the bottom while pushing forward the delivery portion 13D of the separator 13, and moves the separator. Push 13 forward. As shown in FIG. 6, when the first movable roller 23A reaches the arrangement position, the second plane portion 16B and the third plane portion 16C are arranged at the same time. The second plane portion 16B is a portion of the separator 13 between the first deflection roller 24A and the first movable roller 23A, and is arranged above the first plane portion 16A while being stretched in the front-rear direction. The third plane portion 16C is a portion of the separator 13 between the second deflecting roller 24B and the first movable roller 23A, and is arranged above the second plane portion 16B while being stretched in the front-rear direction.

Thereafter, as shown in FIGS. 7 and 8, the negative electrode supply mechanism 33 supplies a plurality of negative electrodes 11 between the second plane portion 16B and the third plane portion 16C. The plurality of supplied negative electrodes 11 are placed on the second flat portion 16B in a state of being aligned in the front-rear direction. The negative electrode 11 on the second plane portion 16B is located directly above the positive electrode 12 on the first plane portion 16A. After that, a plurality of positive electrodes 12 are placed on the third plane portion 16C so as to be aligned in the front-rear direction. After that, the second movable part 23B moves from the standby position to the arrangement position, whereby the fourth plane part 16D and the fifth plane part 16E are arranged above the third plane part 16C. Then, as shown in FIG. 9, a plurality of negative electrodes 11 are placed on the fourth plane portion 16D in a state of being aligned in the front-rear direction.

Thereafter, when the turning rollers 24A, 24B, 24C and the movable rollers 23A, 23B are removed from the separator 13, the separator 13 is divided into a plurality of planar portions 16A, 16B, 16C, 16D, 16E via the folded portion 17. It is molded in a connected zigzag shape. The separator 13 is cut at the folded portion 17 where the fourth plane portion 16D and the fifth plane portion 16E are connected. A plurality of negative electrodes 11 arranged in the front-rear direction, a plurality of positive electrodes 12 arranged in the front-rear direction, and a plurality of planar portions 16A, 16B, 16C, 16D, and 16E are stacked vertically on the upper surface of the stacking table 15. .

Thereafter, as shown in FIG. 10, the cutting device 46 descends, and the planar portions 16A, 16B, 16C, 16D, and 16E are cut by a plurality of cutters 48 arranged at intervals in the front-rear direction. The cutting position is a portion between the electrodes 11 and 12 adjacent in the front-rear direction. In addition, the folded portion 17 is also cut, and the plane portions 16A, 16B, 16C, 16D, and 16E that are continuous through the folded portion 17 are separated. As shown in FIG. 11, by this cutting step, a plurality of laminated electrode bodies 10 in which a plurality of negative electrodes 11 and a plurality of positive electrodes 12 are laminated with separators 13 interposed therebetween are arranged in the front-rear direction. be done.

The apparatus for manufacturing the laminated electrode body 10 of Embodiment 1 includes an arrangement device 20 , a supply device 30 and a cutting device 46 . The arrangement device 20 partitions the sheet-like separator 13 into a plurality of planar portions 16A, 16B, 16C, 16D and 16E. A plurality of flat portions 16A, 16B, 16C, 16D, and 16E partitioned by the arrangement device 20 are arranged so as to be vertically stacked with the electrodes 11 and 12 interposed therebetween. The supply device 30 has a negative electrode supply mechanism 33 and a positive electrode supply mechanism 36 . The negative electrode supply mechanism 33 supplies the plurality of negative electrodes 11 forming the laminated electrode body 10 so as to line up along one plane portion 16A, 16B, 16C, 16D, 16E. The positive electrode supply mechanism 36 supplies the plurality of positive electrodes 12 forming the laminated electrode assembly 10 so as to line up along one plane portion 16A, 16B, 16C, 16D, 16E. The cutting device 46 is a state in which a plurality of flat portions 16A, 16B, 16C, 16D, and 16E and a plurality of electrodes 11 and 12 arranged along the flat portions 16A, 16B, 16C, 16D, and 16E are stacked, and the flat portions 16A, 16B, 16C, 16D and 16E are cut between the electrodes 11,12.

In the manufacturing method using this manufacturing apparatus, the sheet-like separator 13 is divided into a plurality of flat portions 16A, 16B, 16C, 16D, and 16E, and the plurality of flat portions 16A, 16B, 16C, 16D, and 16E are divided into the electrodes 11. , 12 are arranged so as to be stacked. Next, the electrodes 11 and 12 forming the laminated electrode body 10 are supplied so that the plurality of electrodes 11 and 12 are arranged along one plane portion 16A, 16B, 16C, 16D and 16E. Next, in a state in which the plurality of flat portions 16A, 16B, 16C, 16D and 16E and the plurality of electrodes 11 and 12 arranged along the flat portions 16A, 16B, 16C, 16D and 16E are laminated, the flat portions 16A, 16B, 16C, 16D and 16E are laminated. 16B, 16C, 16D, 16E are cut between the electrodes 11,12. According to the manufacturing apparatus and manufacturing method of the first embodiment, a plurality of electrodes 11 and 12 (laminated electrode body 10) are arranged along one plane portion 16A, 16B, 16C, 16D, and 16E. , is highly productive.

The arranging device 20 forms a plurality of planar portions 16A, 16B, 16C, 16D, and 16E that are connected via the folded portion 17 by bending the separator 13 in a zigzag shape. The flat portions 16A, 16B, 16C, 16D and 16E and the electrodes 11 and 12 can be stacked while the plurality of flat portions 16A, 16B, 16C, 16D and 16E are connected via the folded portions 17. FIG. Since it is not necessary to cut the separator 13 to separate the flat portions 16A, 16B, 16C, 16D, and 16E one by one each time the electrodes 11 and 12 are supplied, the productivity is high.

The arranging device 20 pulls in the horizontal direction a portion of the separator 13 hanging vertically (the extended portion 13D), thereby separating the two flat portions 16A, 16B, 16C, 16D, and 16E connected to one folded portion 17. Form. Since the two plane portions 16A, 16B, 16C, 16D and 16E can be arranged with one action, the manufacturing efficiency is good.

[Embodiment 2]
A second embodiment embodying the present disclosure will be described with reference to FIGS. 12 to 18. FIG. In the second embodiment, regarding the front-rear direction, the positive direction of the X axis in FIGS. 12 to 18 is defined as the front. Regarding the vertical direction, the positive direction of the Z axis in FIGS. 12 to 18 is defined as upward.

The manufacturing apparatus of the second embodiment includes a laminated electrode body 10 (Fig. 18). The manufacturing apparatus includes a stacking table 15 , an arrangement device 50 , a supply device 30 (not shown), and a cutting device 60 . The laminated electrode body 10, the negative electrode 11, and the positive electrode 12 are the same members as in Embodiment 1, and the supply device 30 has the same configuration as in Embodiment 1. Therefore, the same reference numerals are used and detailed description thereof is omitted.

As shown in FIG. 12, the arranging device 50 includes a winding roll 21 on which one sheet of flexible long separator 13 is wound, a movable chuck 51, and one separating cutting blade 52. I have it. The winding roll 21 is arranged behind the stacking table 15 with its axis directed in the left-right direction. A separator 13 is extended forward from the upper end of the take-up roll 21 . A portion of the separator 13 that extends forward from the take-up roll 21 is defined as a delivery portion 13D.

The movable chuck 51 is reciprocated in the front-rear direction (horizontal direction) by a drive mechanism (not shown) between an initial position (not shown) and a drawn-out position (see FIGS. 12 and 15) forward of the initial position. It is designed to The movement direction of the movable chuck 51 from the initial position to the pulled-out position is parallel to the alignment direction of the negative electrodes 11 and the alignment direction of the positive electrodes 12 on the stacking table 15 . The height of the moving path of the movable chuck 51 is higher than the upper surface of the stacking table 15 . The initial position is a position where the movable chuck 51 can chuck the front end of the feeding portion 13</b>D of the separator 13 . The drawer position is set at a position forward of the front end of the stacking table 15 . The separating cutting blade 52 is arranged in front of the take-up roll 21 .

The cutting device 60 is arranged above the stacking table 15 . The cutting device 60 includes an elevating member 61 driven up and down by a drive mechanism (not shown), and a plurality of cutters 62 projecting downward from the elevating member 61 . The plurality of cutters 62 have cutting blades elongated in the left-right direction, and are spaced apart in the front-rear direction.

Next, the manufacturing process of the laminated electrode body 10 will be described. First, while the negative electrode supply mechanism 33 (not shown) is in the preparation position, the negative electrode sucker 42 of the negative electrode transfer mechanism 40 (not shown) is inserted into the negative electrode reservoir 31 (not shown). The negative electrode 11 is attracted and held by each negative electrode holding member 35 of the negative electrode supply mechanism 33 . After all the negative electrode holding members 35 hold the negative electrodes 11, the negative electrode supply mechanism 33 moves from the preparation position to the supply position, and the plurality of negative electrodes 11 held by the negative electrode holding members 35 , is placed on the upper surface of the stacking table 15 . Since the plurality of negative electrode holding members 35 are arranged so as to line up in the front-rear direction, the plurality of negative electrodes 11 are arranged in the front-rear direction on the upper surface of the stacking table 15 . Before and after this step, the positive electrode 12 is held by the positive electrode transfer mechanism 43 on each of the positive electrode holding members 38 of the positive electrode supply mechanism 36 at the preparation position.

Next, the movable chuck 51 grips the front end of the feeding portion 13D of the separator 13 and horizontally pulls the separator 13 forward. As a result, as shown in FIG. 12, one plane portion 18A (hereinafter referred to as first plane portion 18A) extending in the horizontal direction (front-rear direction) is arranged above the plurality of negative electrodes 11 on the stacking table 15. is set. After the first plane portion 18A is provided, the separating cutting blade 52 descends to separate the rear end of the first plane portion 18A and the extension portion 13D as shown in FIG. While the first plane portion 18A is arranged by the movable chuck 51, the negative electrode supply mechanism 33 returns to the preparation position, and the negative electrode 11 is held by each negative electrode holding member 35. As shown in FIG.

Next, a positive electrode supply mechanism 36 supplies a plurality of positive electrodes 12 to the upper surface of the first flat portion 18A. Since the plurality of positive electrode holding members 38 are arranged so as to line up in the front-rear direction, the plurality of positive electrodes 12 are also placed so as to line up in the front-rear direction. The plurality of positive electrodes 12 placed on the first plane portion 18A are individually positioned directly above the plurality of negative electrodes 11 on the stacking table 15 (see FIG. 14).

Next, the movable chuck 51, which has returned to the initial position, grips the front end of the feeding portion 13D of the separator 13 and horizontally pulls the separator 13 forward. As a result, as shown in FIG. 15, the second plane portion 18B extending in the horizontal direction (front-rear direction) is arranged above the plurality of positive electrodes 12 placed on the first plane portion 18A. After the second plane portion 18B is provided, the separating cutting blade 52 descends to separate the rear end of the second plane portion 18B and the extension portion 13D, as shown in FIG. While the second flat portion 18B is disposed, the negative electrode supply mechanism 33 returns to the preparation position, the negative electrode 11 is held by each of the negative electrode holding members 35, and the positive electrode supply mechanism 36 is restored. It returns to the preparation position, and the positive electrode 12 is held by each positive electrode holding member 38 .

Next, the negative electrode supply mechanism 33 supplies a plurality of negative electrodes 11 to the upper surface of the second flat portion 18B. Since the plurality of negative electrode holding members 35 are arranged so as to line up in the front-rear direction, the plurality of negative electrodes 11 are also placed so as to line up in the front-rear direction. The plurality of negative electrodes 11 placed on the second plane portion 18B are individually positioned directly above the plurality of positive electrodes 12 on the stacking table 15 (see FIG. 17). After that, by repeating the same steps as above, the third plane portion 18C and the fourth plane portion 18D are provided, the plurality of positive electrodes 12 are provided on the upper surface of the third plane portion 18C, and the fourth plane portion 18D is provided. a plurality of negative electrodes 11 are provided on the upper surface of the .

After that, the cutting device 60 operates, and the flat portions 18A, 18B, 18C, 18D, and 18E are cut by a plurality of cutters 62 . The cutting position is a portion between the electrodes 11 and 12 adjacent in the front-rear direction. By this cutting, the flat portions 18A, 18B, 18C, and 18D are divided, and a plurality of laminated electrode bodies 10 having a configuration in which a plurality of negative electrodes 11 and a plurality of positive electrodes 12 are laminated with separators 13 interposed therebetween are separated in the front-rear direction. configured in a row.

The apparatus for manufacturing the laminated electrode body 10 of Embodiment 2 includes an arrangement device 50 , a supply device 30 and a cutting device 60 . The arrangement device 50 partitions the sheet-like separator 13 into a plurality of flat portions 18A, 18B, 18C, and 18D. A plurality of flat portions 18A, 18B, 18C, and 18D partitioned by the arrangement device 50 are arranged so as to be vertically stacked with the electrodes 11 and 12 interposed therebetween. The supply device 30 has a negative electrode supply mechanism 33 and a positive electrode supply mechanism 36 . The negative electrode supply mechanism 33 supplies the plurality of negative electrodes 11 forming the laminated electrode assembly 10 so as to line up along one plane portion 18A, 18B, 18C, 18D. The positive electrode supply mechanism 36 supplies the plurality of positive electrodes 12 forming the laminated electrode assembly 10 so as to line up along one plane portion 18A, 18B, 18C, 18D. The cutting device 60 cuts the flat portions 18A, 18B, 18C, 18D and the electrodes 11, 12 arranged along the flat portions 18A, 18B, 18C, 18D. 18C and 18D are cut between electrodes 11 and 12; According to the manufacturing apparatus and manufacturing method of Embodiment 2, a plurality of electrodes 11 and 12 are arranged along one plane portion 18A, 18B, 18C, and 18D, so productivity is excellent.

<Other Examples>
The present invention is not limited to the embodiments explained by the above description and drawings, and the following embodiments are also included in the technical scope of the present invention.
The electrodes may be arranged so as to be aligned in the front-rear direction and the left-right direction along one flat portion.
The separator may be bent in a zigzag shape by unrolling the separator while reciprocating the roll around which the separator is wound.

DESCRIPTION OF SYMBOLS 10... Laminated electrode body 11... Negative electrode (electrode)
12... positive electrode (electrode)
13... Separator 16A, 18A... First flat portion (flat portion)
16B, 18B... second flat portion (flat portion)
16C, 18C... Third flat portion (flat portion)
16D, 18D... Fourth flat portion (flat portion)
16E... Fifth flat portion (flat portion)
DESCRIPTION OF SYMBOLS 14... Folding part 20, 50... Arranging device 30... Supplying device 46, 60... Cutting device

Claims (5)

an arrangement device that divides a sheet-like separator into a plurality of planar portions and arranges the plurality of planar portions so as to be stacked;
a supply device for supplying electrodes constituting a laminated electrode body so that a plurality of the electrodes are arranged along one of the planar portions;
An apparatus for manufacturing a laminated electrode assembly, comprising: a cutting device for cutting the flat portions between the electrodes in a state in which the plurality of flat portions and the plurality of electrodes arranged along the flat portions are laminated. 2. The apparatus for manufacturing a laminated electrode assembly according to claim 1, wherein the disposing device bends the separator in a zigzag shape to form a plurality of the planar portions which are continuous via folded portions. 3. The laminated electrode according to claim 1, wherein the arranging device forms the two planar portions connected to one folded portion by pulling in the horizontal direction a part of the separator that hangs down in the vertical direction. body manufacturing equipment. A sheet-like separator is divided into a plurality of planar portions, and the plurality of planar portions are arranged so as to be stacked,
supplying electrodes constituting a laminated electrode body so that a plurality of the electrodes are arranged along one of the planar portions;
A method for manufacturing a laminated electrode body, wherein the plurality of plane portions and the plurality of electrodes arranged along the plane portions are stacked, and the plane portions are cut between the electrodes. a stretching step of forming two flat portions connected to one folded portion by stretching a part of the separator suspended in the vertical direction in the horizontal direction;
A method for manufacturing a laminated electrode assembly, repeating a supply step of supplying the plurality of electrodes so as to line up along the plane portion.

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