JP2017191727A - Electrode layering device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electrode layering device that can be shortened in time required for layering electrodes.SOLUTION: An electrode layering device 20 comprises: a layering unit 23 arranged at an intermediate place between an anode accommodating unit 21 and a cathode accommodating unit 22; a moving device 43 for a cathode, which moves a cathode holding unit 32 along a conveyance path R2; and a moving device 40 for an anode, which moves an anode holding unit 31 along a conveyance path R1. The electrode layering device 20 comprises a driving device 50 that moves the moving devices 40, 43. The driving device 50 synchronizes drives of the moving devices 40, 43 in order to synchronize movement of the cathode holding unit 32 from the cathode accommodating unit 22 to the layering unit 23 and movement of the anode holding unit 31 from the anode accommodating unit 21 to the layering unit 23.SELECTED DRAWING: Figure 3

Description

  The present invention relates to an electrode laminating apparatus for laminating a positive electrode and a negative electrode.

  A vehicle such as an EV (Electric Vehicle) or a PHV (Plug in Hybrid Vehicle) is equipped with a power storage device that stores electric power supplied to a motor serving as a prime mover. A secondary battery as a power storage device includes an electrode assembly in a case. The electrode assembly has, for example, a laminated structure in which a plurality of rectangular positive electrode electrodes and negative electrode electrodes each having an active material layer on both surfaces are stacked with a separator interposed therebetween.

  As an apparatus for laminating a positive electrode and a negative electrode to form a laminated electrode assembly, for example, a manufacturing apparatus disclosed in Patent Document 1 can be cited. As shown in FIG. 7, the manufacturing apparatus of Patent Document 1 includes a separator supply stage 81, an electrode foil supply stage 82, and a stacking stage 83. On the separator supply stage 81, the separators 90 are supplied one by one for every stacking. Further, the negative electrode 91 and the positive electrode 92 are alternately supplied to the electrode foil supply stage 82 one by one each time the layers are stacked.

  The manufacturing apparatus includes a guide rail 84 disposed above each of the stages 81 to 83. The manufacturing apparatus also includes a transfer arm 85 supported by the guide rail 84. The transfer arm 85 includes a suction pad 86 at the lower end. The transfer arm 85 is movable along the guide rail 84 by the power of a drive source such as a motor. Further, the transfer arm 85 can be expanded and contracted in the vertical direction.

  In order to stack the negative electrode 91 and the positive electrode 92 by the manufacturing apparatus of Patent Document 1, first, the transfer arm 85 is guided onto the separator supply stage 81, and the separator is supplied by the suction pad 86 of the transfer arm 85. The separator 90 on the stage 81 is adsorbed.

  Next, the transfer arm 85 is guided onto the electrode foil supply stage 82, and the negative electrode 91 supplied in advance on the electrode foil supply stage 82 is adsorbed by the suction pad 86 of the transfer arm 85. With the separator 90 and the negative electrode 91 adsorbed on the suction pad 86 of the transfer arm 85, the transfer arm 85 is guided onto the stacking stage 83. Adsorption of the separator 90 and the negative electrode 91 is released on the lamination stage 83, and the negative electrode 91 is placed on the lamination stage 83, and the separator 90 is laminated on the negative electrode 91.

  Next, the transfer arm 85 is guided onto the separator supply stage 81, and the separator 90 on the separator supply stage 81 is sucked by the suction pad 86 of the transfer arm 85. Next, the transfer arm 85 is guided onto the electrode foil supply stage 82, and the positive electrode 92 supplied in advance onto the electrode foil supply stage 82 is adsorbed by the suction pad 86 of the transfer arm 85. In a state where the separator 90 and the positive electrode 92 are attracted to the suction pad 86 of the transport arm 85, the transport arm 85 is guided onto the stacking stage 83.

  Adsorption of the separator 90 and the positive electrode 92 is released on the lamination stage 83, and the positive electrode 92 is laminated on the separator 90 on the lamination stage 83, and the separator 90 is laminated on the positive electrode 92. The By repeating these steps, the separator 90, the negative electrode 91, and the positive electrode 92 are stacked on the stacking stage 83.

JP 2010-257861 A

  By the way, the manufacturing apparatus disclosed in Patent Document 1 moves the transfer arm 85 for moving the negative electrode 91 to the stacking stage 83 and moves the transfer arm 85 for moving the positive electrode 92 to the stacking stage 83. Are alternately performed, and time is required for stacking.

  An object of the present invention is to provide an electrode stacking apparatus that can shorten the time required for stacking electrodes.

  An electrode stacking apparatus for solving the above problems includes a positive electrode housing portion that houses a positive electrode, a negative electrode housing portion that is arranged alongside the positive electrode housing portion and houses a negative electrode, and the positive electrode housing portion. A positive electrode holding portion that is movable on a positive electrode conveyance path parallel to a straight line extending in a parallel arrangement direction of the negative electrode accommodating portions, and capable of holding and releasing the positive electrode accommodated in the positive electrode accommodating portion; A negative electrode holding path that is movable on a negative electrode conveyance path parallel to a straight line, is capable of holding and detaching the negative electrode accommodated in the negative electrode accommodating section, and is located along the straight line, and Movement of the positive electrode disposed between the positive electrode accommodating portion and the negative electrode accommodating portion and moving the positive electrode electrode and the negative electrode electrode and the positive electrode holding portion along the positive electrode transport path. Device and the negative electrode holding part A negative electrode moving device that is moved along the transport path, a movement of the positive electrode holding portion from the positive electrode housing portion toward the stack portion, and a holding portion of the negative electrode from the negative electrode housing portion toward the stack portion. And a driving device that synchronizes the driving of the positive electrode moving device and the negative electrode moving device to synchronize the movement of the negative electrode.

  According to this, the positive electrode accommodated in the positive electrode accommodating part is held by the holding part, and the negative electrode accommodated in the negative electrode accommodating part is held by the holding part. And the drive of both moving devices is synchronized with a drive device so that the movement of both the holding | maintenance parts toward each laminated part from each accommodating part may become the same timing. Then, both the holding parts move linearly on each conveyance path, and the positive electrode and the negative electrode are simultaneously conveyed from each housing part to the stacking part. And if each electrode is made to detach | leave from each holding | maintenance part on a lamination | stacking part, the electrode of a positive electrode and the electrode of a negative electrode can be laminated | stacked on a lamination | stacking part at the same timing. Therefore, as compared with the case where the positive electrode and the negative electrode are alternately conveyed to the stack portion and stacked, the time required for stacking the electrodes can be halved.

Moreover, about an electrode lamination apparatus, it is preferable that the said drive device is provided with one drive motor and the transmission mechanism which mechanically transmits the motive power of the said drive motor to both moving devices.
According to this, the positive electrode moving device and the negative electrode moving device can be easily synchronized.

  In the electrode stacking apparatus, the moving device includes a wheel that is rotated by power of the drive motor, and a band that is coupled to the wheel and reciprocates by the reciprocating rotation of the wheel. The holding unit may be connected.

  According to this, while simplifying the structure of the moving device, it is easy to synchronize the movement of each holding portion from each housing portion toward the stacked portion.

  According to the present invention, the time required for stacking electrodes can be shortened.

The perspective view which shows the component of an electrode assembly. The side view which shows an electrode lamination apparatus typically. The top view which shows an electrode lamination apparatus typically. The top view which shows the state which each moving part moved toward the lamination | stacking part. The side view which shows the state which a moving part moves on a lamination | stacking part and laminates | stacks an electrode. The side view which shows typically the electrode lamination apparatus of another example. The figure which shows background art.

Hereinafter, an embodiment embodying an electrode stacking apparatus will be described with reference to FIGS.
Although not shown, the secondary battery as the power storage device is, for example, a lithium ion secondary battery. The secondary battery contains a stacked electrode assembly and an electrolytic solution in a case. The electrode assembly includes a plurality of positive electrodes, negative electrodes, and bag separators.

  As shown in FIG. 1, the positive electrode 12 has a positive electrode body housed in a bag-like separator 17. The electrode assembly is a laminated type in which the positive electrode 12 and the negative electrode 13 are laminated in layers in a state of being insulated from each other by the bag-shaped separator 17.

  The positive electrode 12 and the negative electrode 13 have a rectangular sheet shape. The positive electrode 12 and the negative electrode 13 include a rectangular sheet-like metal foil 14. The metal foil 14 of the positive electrode 12 is, for example, an aluminum foil, and the metal foil 14 of the negative electrode 13 is, for example, a copper foil. The positive electrode 12 and the negative electrode 13 include active material layers 15 on both surfaces of a metal foil 14.

The bag-shaped separator 17 is formed by welding a pair of opposing separator pieces 17a. The outer size of the bag-like separator 17 is the same as the outer size of the negative electrode 13.
Next, the electrode stacking apparatus 20 will be described.

  As shown in FIG. 2 or FIG. 3, the electrode stacking apparatus 20 includes a negative electrode housing part 21 and a positive electrode housing part 22. A plurality of negative electrodes 13 are accommodated in the negative electrode accommodating portion 21 in a stacked state. In the positive electrode accommodating portion 22, a plurality of positive electrodes 12 in which a positive electrode main body is accommodated in a bag-like separator 17 are accommodated in a stacked state. The negative electrode housing part 21 and the positive electrode housing part 22 are arranged side by side in a plan view of the electrode stacking device 20. The negative electrode housing part 21 and the positive electrode housing part 22 are arranged along a single straight line L extending in the direction in which the housing parts 21 and 22 are arranged side by side.

  The electrode stacking apparatus 20 includes a stacking unit 23. The bag-shaped separator 17 containing the positive electrode main body and the negative electrode 13 are alternately stacked on the stacked surface 23 a of the stacked portion 23. The stacked portion 23 is disposed along a straight line L along the negative electrode housing portion 21 and the positive electrode housing portion 22. The negative electrode housing part 21, the laminated part 23, and the positive electrode housing part 22 are arranged at a position along one straight line L.

  In a plan view of the electrode stacking apparatus 20, the distance K1 from the negative electrode housing portion 21 to the stacking portion 23 and the distance K2 from the positive electrode housing portion 22 to the stacking portion 23 are the same. The stacked portion 23 is located between the negative electrode accommodating portion 21 and the positive electrode accommodating portion 22.

  The electrode stacking apparatus 20 includes a negative electrode holding portion 31 that moves between the negative electrode accommodating portion 21 and the laminated portion 23, and a positive electrode holding portion 32 that moves between the positive electrode accommodating portion 22 and the laminated portion 23. The negative electrode holding part 31 can hold and take out one of the negative electrode 13 accommodated in the negative electrode accommodating part 21. Further, the negative electrode holding portion 31 can detach the held negative electrode 13 on the laminated portion 23. The linear path through which the negative electrode holding part 31 moves from the negative electrode accommodating part 21 to the stacked part 23 becomes the negative electrode transport path R1. The transport path R1 is parallel to a straight line L along which the negative electrode housing portion 21 and the positive electrode housing portion 22 are along.

  The positive electrode holding part 32 can hold and take out one of the positive electrode 12 accommodated in the positive electrode accommodating part 22. Further, the positive electrode holding part 32 can detach the held positive electrode 12 on the laminated part 23. A linear path through which the positive electrode holding part 32 moves from the positive electrode accommodating part 22 to the stacked part 23 is a positive electrode transport path R2. The transport path R2 is parallel to a straight line L along which the negative electrode housing portion 21 and the positive electrode housing portion 22 are along. The method for holding and releasing the electrodes 12 and 13 is adsorption or clamping, and can be changed as appropriate.

  The electrode stacking apparatus 20 includes a negative electrode moving device 40 that moves the negative electrode holding portion 31. The negative electrode moving device 40 includes a wheel 41 and a long belt-like band 42 wound around and coupled to the wheel 41. A negative electrode holder 31 is connected to the tip of the band 42.

  In the negative electrode moving device 40, when the wheel 41 rotates in the first direction Y1, the band 42 is fed out linearly toward the laminated portion 23, and the negative electrode holding portion 31 is moved along the transport path R1 to the negative electrode accommodating portion. It moves linearly from the 21 side to the laminated part 23 side. On the other hand, when the wheel 41 rotates in the second direction Y2 opposite to the first direction Y1, the band 42 is wound around the wheel 41, and the negative electrode holding unit 31 is moved from the stacking unit 23 side along the transport path R1. It moves linearly toward the negative electrode accommodating part 21 side. Therefore, the band 42 reciprocates as the wheel 41 reciprocates.

  The electrode stacking apparatus 20 includes a positive electrode moving device 43 that moves the positive electrode holding portion 32. The positive electrode moving device 43 includes a wheel 44 and a long belt-like band 45 wound around and coupled to the wheel 44. The positive electrode holder 32 is connected to the tip of the band 45.

  In the positive electrode moving device 43, the wheel 44 is rotated in the second direction Y2, whereby the band 45 is fed out linearly toward the laminated portion 23, and the positive electrode holding portion 32 is moved along the transport path R2 to the positive electrode accommodating portion. It moves linearly from the 22 side to the laminated part 23 side. On the other hand, when the wheel 44 rotates in the first direction Y1, the band 45 is wound around the wheel 44, and the positive electrode holding portion 32 is linearly moved from the laminated portion 23 side to the positive electrode accommodating portion 22 side along the transport path R2. Move to. Therefore, the band 45 reciprocates as the wheel 44 reciprocates.

  As shown in FIG. 3, in the plan view of the electrode stacking apparatus 20, the negative electrode wheel 41 and the positive electrode wheel 44 are positioned on the same straight line, and the negative electrode band 42 and the positive electrode band 45 are also on the same straight line. Located in. Therefore, the conveyance path R1 of the negative electrode holding unit 31 and the conveyance path R2 of the positive electrode holding unit 32 are located on the same straight line. As shown in FIG. 2, in the height direction, the negative electrode band 42 is located below the positive electrode band 45, and the negative electrode holding part 31 is located below the positive electrode holding part 32.

  As shown in FIG. 3, the electrode stacking apparatus 20 includes a driving device 50 that drives a negative electrode moving device 40 and a positive electrode moving device 43. The drive device 50 includes one drive motor 51 and a transmission mechanism 49 that mechanically transmits the power of the drive motor 51 to the wheels 41 and 44. The output shaft 52 of the drive motor 51 is connected to the negative wheel 41. The transmission mechanism 49 includes a drive pulley 53 fixed to the output shaft 52.

  The transmission mechanism 49 includes a drive shaft 54 connected to the positive wheel 44 and a drive gear 59 fixed to the drive shaft 54. Further, the transmission mechanism 49 includes an intermediate shaft 55 that is parallel to the drive shaft 54 so as to be rotatable, and includes a driven pulley 56 and an intermediate gear 57 that are fixed to the intermediate shaft 55. The transmission mechanism 49 includes a timing belt 58 wound around the driving pulley 53 and the driven pulley 56.

  The rotation of the drive motor 51 is transmitted to the intermediate shaft 55 via the drive pulley 53, the timing belt 58, and the driven pulley 56. The rotation of the intermediate shaft 55 is converted into the reverse rotation of the positive wheel 44 via the intermediate gear 57 and the drive gear 59. Therefore, the negative wheel 41 and the positive wheel 44 rotate in opposite directions in synchronization with each other.

  When the drive motor 51 is rotated in the forward rotation direction, the negative electrode wheel 41 is rotated in the first direction Y1, the band 42 is sent out, and the negative electrode holding portion 31 is moved from the negative electrode accommodating portion 21 side to the laminated portion 23 side. To do. At the same time, the positive electrode wheel 44 rotates in the second direction Y2 and the band 45 is sent out, and the positive electrode holding portion 32 moves from the positive electrode accommodating portion 22 side to the laminated portion 23 side.

  On the other hand, when the drive motor 51 is rotated in the reverse rotation direction, the negative electrode wheel 41 rotates in the second direction Y2 and the band 42 is wound, so that the negative electrode holding portion 31 moves from the laminated portion 23 side to the negative electrode accommodating portion 21 side. Move to. At the same time, the positive electrode wheel 44 rotates in the first direction Y1 to wind the band 45, and the positive electrode holding portion 32 moves from the laminated portion 23 side to the positive electrode accommodating portion 22 side.

  As shown in FIG. 2, the electrode stacking apparatus 20 includes a control unit 60 that controls the rotation of the drive motor 51. The controller 60 is signal-connected to the drive motor 51. An input device (not shown) is connected to the control unit 60. The drive of the drive motor 51 is controlled by the control unit 60 in accordance with input information from the input device. The control unit 60 controls the rotation of the drive motor 51 in the forward rotation direction or the reverse rotation direction to reciprocate the holding units 31 and 32 between the storage units 21 and 22 and the stacking unit 23.

Next, the operation of the electrode stacking apparatus 20 will be described together with the electrode stacking method.
First, the required number of layers for each of the positive electrode 12 and the negative electrode 13 is determined. These numbers are calculated, for example, so that the total weight of the active material layer 15 in the electrode assembly becomes a predetermined value. Then, the determined number of electrodes 12 and 13 is input from the input device to the control unit 60.

  2 and 3, the negative electrode holding portion 31 is positioned in front of the negative electrode housing portion 21, and the positive electrode holding portion 32 is positioned in front of the positive electrode housing portion 22. The holding unit 31 holds the negative electrode 13 and the positive holding unit 32 holds the positive electrode 12 in which the positive electrode body is housed in the bag-like separator 17. Next, the control unit 60 rotates the drive motor 51 in the forward rotation direction and controls the rotation speed of the drive motor 51.

  As shown in FIG. 4, the negative electrode wheel 41 rotates in the first direction Y <b> 1, and the negative electrode holding portion 31 holding the negative electrode 13 moves toward the stacked portion 23. At the same time, the positive electrode wheel 44 rotates in the second direction Y 2, and the positive electrode holding part 32 holding the positive electrode 12 moves toward the laminated part 23. Then, when the drive motor 51 rotates a predetermined number of times, the drive motor 51 stops.

  Then, as shown in FIG. 5, the negative electrode holding portion 31 and the positive electrode holding portion 32 arrive at the same timing immediately above the laminated portion 23. Thereafter, the negative electrode holding portion 31 releases the negative electrode 13, and the positive electrode holding portion 32 releases the positive electrode 12. At this time, the negative electrode holding portion 31 is retracted so that the negative electrode holding portion 31 does not interfere with the fall of the positive electrode 12. Then, the negative electrode 13 and the positive electrode 12 are dropped and placed on the stacked surface 23 a of the stacked portion 23.

Next, the control unit 60 rotates the drive motor 51 in the reverse direction and controls the rotation speed of the drive motor 51.
The negative electrode wheel 41 rotates in the second direction Y <b> 2, and the negative electrode holding portion 31 that holds nothing moves from the stacked portion 23 toward the negative electrode accommodating portion 21. At the same time, the positive electrode wheel 44 rotates in the first direction Y <b> 1, and the positive electrode holding part 32 that holds nothing moves from the stacked part 23 toward the positive electrode accommodating part 22. Then, the negative electrode holding portion 31 reaches the front surface of the negative electrode housing portion 21 and the positive electrode holding portion 32 simultaneously reaches the front surface of the positive electrode housing portion 22.

  Assuming that each holding portion 31 and 32 is reciprocated between the accommodating portions 21 and 22 and the laminated portion 23 as one operation, this one operation is performed a number of times corresponding to the number of laminated electrodes 12 and 13, A solid is completed.

According to the above embodiment, the following effects can be obtained.
(1) The negative electrode moving device 40 and the positive electrode moving device 43 are driven in synchronization by the driving device 50, and the negative electrode holding portion 31 and the positive electrode holding portion 32 are moved in synchronization. As a result, the negative electrode holding portion 31 holding the negative electrode 13 and the positive electrode holding portion 32 holding the positive electrode 12 can be moved to the stacked portion 23 at the same timing. For this reason, compared with the case where conveyance of the negative electrode 13 to the lamination | stacking part 23 and conveyance of the positive electrode 12 to the lamination | stacking part 23 are performed alternately, the time required for lamination | stacking can be shortened in half.

  (2) The drive device 50 includes one drive motor 51 and a transmission mechanism 49 that transmits the power of the drive motor 51 to the wheels 41 and 44. The power of the drive motor 51 is mechanically transmitted by the transmission mechanism 49, so that the negative electrode moving device 40 and the positive electrode moving device 43 can be easily synchronized.

  (3) Each moving device 40, 43 includes wheels 41, 44 and bands 42, 45, and each holding portion 31, 32 is connected to each 42, 45. The holding portions 31 and 32 can be synchronized with a simple configuration such as the wheels 41 and 44 and the bands 42 and 45.

  (4) The negative electrode moving device 40 and the positive electrode moving device 43 are shifted in the height direction so that the positive electrode holding portion 32 is positioned on the negative electrode holding portion 31. For this reason, it is possible to avoid interference between the negative electrode holding portion 31 and the positive electrode holding portion 32 directly above the laminated portion 23.

  (5) The negative electrode moving device 40 and the positive electrode moving device 43 can be driven in synchronization by the driving device 50, and the negative electrode holding portion 31 and the positive electrode holding portion 32 can be moved in synchronization. As a result, the negative electrode holding portion 31 from which the negative electrode 13 has been detached and the positive electrode holding portion 32 from which the positive electrode 12 has been removed are moved from the stacked portion 23 to the housing portions 21 and 22 at the same timing. be able to. For this reason, the conveyance operation of the next electrodes 12 and 13 can be started at the same timing, and the negative electrode holding unit 31 holding the negative electrode 13 and the positive electrode holding unit 32 holding the positive electrode 12 are provided. , And can be conveyed to the stacking unit 23 at the same timing.

  (6) For example, it is conceivable to use two robot arms as means for moving the electrodes from each housing portion to the stacking portion. However, the movement by the robot arm is accompanied by a rotational motion, and as the work speeds up, a large force in the twisting direction gradually acts on the entire robot arm. On the other hand, in order to maintain work accuracy and durability, it is conceivable to increase the rigidity of the entire robot arm, but the necessary reinforcement causes an increase in the weight of the robot arm, which is disadvantageous for speeding up the work. On the other hand, since the electrode stacking apparatus 20 moves the holding portions 31 and 32 in the opposite directions in synchronism, the force acting due to acceleration / deceleration is canceled in the entire apparatus. For this reason, even when dealing with speeding up, the places where reinforcement is required are limited, and the influence on the weight is small.

In addition, you may change the said embodiment as follows.
As shown in FIG. 6, the wheel 41 of the negative moving device 40 and the wheel 44 of the positive moving device 43 can be rotated by separate drive motors 51, and each drive motor 51 is signal-connected to the control unit 60. To do. Then, the control unit 60 synchronizes the driving of both drive motors 51 to move the positive electrode holding unit 32 from the positive electrode housing unit 22 toward the stacking unit 23 and from the negative electrode housing unit 21 toward the stacking unit 23. The movement of the negative electrode holding portion 31 is synchronized. In this case, the drive device 50 is configured by the two drive motors 51 and the control unit 60.

  The drive device may include a drive motor, a screw shaft connected to the rotation shaft of the drive motor, and a ball screw screwed to the screw shaft, and the holding unit may be connected to the ball screw. And you may enable the reciprocating motion of a holding | maintenance part along a screw axis | shaft by controlling the rotation speed and rotation direction of a drive motor.

  ○ The positive electrode body of the positive electrode 12 was accommodated in the bag-shaped separator 17 and the positive electrode 12 was provided with a separator, but an insulating layer was provided on the surface of the active material layer 15 of the positive electrode 12 or the negative electrode 13, It is good also as an electrode with a separator by an insulating layer.

The power storage device may be applied to another power storage device such as an electric double layer capacitor instead of the secondary battery.
The secondary battery is a lithium ion secondary battery, but is not limited thereto, and may be another secondary battery. Further, the electrode structure may be one in which an active material layer is supported on a punching metal or a metal fiber having a three-dimensional structure. In short, the electrode has a sheet shape, and a plurality of sheet electrodes are laminated. What is necessary is just to have the laminated electrode assembly comprised.

Next, the technical idea that can be grasped from the above embodiment and other examples will be described below.
(1) The drive device synchronizes the movement of the positive electrode holding portion from the stacked portion toward the positive electrode housing portion and the movement of the negative electrode holding portion from the stacked portion toward the negative electrode housing portion. Therefore, an electrode stacking device that synchronizes the driving of the positive electrode moving device and the negative electrode moving device.

  (2) An electrode stacking apparatus in which the positive electrode has a separator.

  L ... straight line, R1, R2 ... transport path, 12 ... positive electrode, 13 ... negative electrode, 21 ... negative electrode accommodating portion, 22 ... positive electrode accommodating portion, 23 ... laminated portion, 31 ... for negative electrode as negative electrode holding portion Holding unit, 32 ... positive electrode holding unit as a positive electrode holding unit, 40 ... negative electrode moving device, 43 ... positive electrode moving device, 41, 44 ... wheel, 42, 45 ... band, 49 ... transmission mechanism, 50 ... drive Device, 51... Drive motor.

Claims (3)

A positive electrode housing portion housing a positive electrode;
A negative electrode housing portion that is arranged alongside the positive electrode housing portion and houses a negative electrode,
A positive electrode that is movable on a positive electrode conveyance path parallel to a straight line extending in a direction in which the positive electrode accommodating portion and the negative electrode accommodating portion are arranged in parallel, and capable of holding and releasing the positive electrode accommodated in the positive electrode accommodating portion. A holding part;
A negative electrode holding portion that is movable on a negative electrode conveyance path parallel to the straight line, and capable of holding and releasing the negative electrode accommodated in the negative electrode accommodating portion;
A laminated portion in a position along the straight line and disposed between the positive electrode accommodating portion and the negative electrode accommodating portion, and the positive electrode and the negative electrode are laminated;
A positive electrode moving device for moving the positive electrode holder along the positive electrode conveyance path;
A negative electrode moving device for moving the negative electrode holding portion along the negative electrode conveyance path;
The positive electrode moving device and the positive electrode moving device to synchronize the movement of the positive electrode holding portion from the positive electrode housing portion toward the stack portion and the movement of the negative electrode holding portion from the negative electrode housing portion toward the stack portion; An electrode stacking device comprising: a driving device that synchronizes driving of the negative electrode moving device.   The electrode driving apparatus according to claim 1, wherein the driving device includes one driving motor and a transmission mechanism that mechanically transmits power of the driving motor to both moving devices.   The moving device includes a wheel that is rotated by power of the drive motor, and a band that is coupled to the wheel and reciprocates by reciprocating rotation of the wheel, and the holding unit is coupled to a tip of the band. The electrode stacking apparatus according to claim 2.

Images