JP6544195B2 - Electrode foil conveying apparatus and laminated battery manufacturing apparatus - Google Patents

Description

  The present invention relates to a transfer device, and more particularly, to a transfer device of electrode foil which is one of members constituting a battery such as a lithium ion secondary battery and a manufacturing device of a laminated battery.

  For example, a laminated structure type battery (laminated type battery) is manufactured through a process of alternately laminating electrode foils such as a positive electrode foil and a negative electrode foil via a separator.

  As a conveying apparatus for conveying an electrode foil such as a positive electrode foil or a negative electrode foil in the manufacturing process of such a laminated type battery, Patent Document 1 proposes an electrode foil conveying apparatus as described below.

  That is, in Patent Document 1, as shown in FIG. 7, the electrode foil 106 having the coated portion 107 to which the active material is applied and the uncoated portion 108 to which the active material is not applied is not coated. A conveying device for conveying one sheet at a time from a first position where all the portions 108 are stacked so as to be located on the same side to a second position different from the first position, and stacking at the first position A coated portion suction head 127 for sucking the coated portion 107 of the uppermost electrode foil among the electrode foils 106, a vertical moving means 124 for moving the coated portion suction head 127 in the vertical direction, a coated portion A horizontal moving means (not shown) for moving the suction head 127 in the horizontal direction, and an uncoated portion provided separately from the coated portion suction head 127 for suctioning the uncoated portion 108 of the uppermost electrode foil 106 Separate from suction head 136 and vertical movement means 124 An electrode provided with an uncoated portion moving means 132 capable of vertically moving the uncoated portion adsorption head 136 and a gas injection means 142 capable of injecting gas from the side of the uncoated portion 108 An apparatus for conveying a foil is disclosed (see, for example, claim 3 of Patent Document 1).

  And according to this conveyance apparatus, it is supposed that electrode foil can be conveyed one by one, preventing the problem that several sheets (for example, two sheets) of electrode foils are lifted at once.

JP 2012-216447 A

  However, in the case of the electrode foil transport device of Patent Document 1, for example, in the case where two electrode foils are in close contact (stick) between the coated portions on which the active material for electrode formation is applied, When the two electrode foils are peeled off, the coating film formed by applying the active material may be partially peeled off, and the peeled coating film may become a contaminant to deteriorate the product characteristics. .

  The present invention solves the above-mentioned problems. For example, even when two electrode foils in which the coated portions are in close contact with each other are simultaneously held by the suction head and conveyed, the electrode foils are used. An electrode foil which can be peeled off and transported one by one and does not cause deterioration in the characteristics of the product due to pieces of the coated film produced by partial peeling of the coated film when peeling the electrode foil It is an object of the present invention to provide a transport device for

In order to solve the above-mentioned subject, the conveyance device of electrode foil of the present invention is:
It has a coated part by which electrode material was applied to a predetermined field of both principal surfaces of electrode foil main part, and an uncoated part to which the electrode material of the peripheral part predetermined area of electrode foil main part is not applied, A conveying device for conveying electrode foils stacked in a magazine to a receiving stage one by one.
An adsorption head for adsorbing and holding the electrode foil of the uppermost layer of the plurality of electrode foils stacked in the magazine;
A head body for holding the suction head;
A head drive mechanism for moving the head body vertically and horizontally;
While suctioning and cleaning the lower surface of the electrode foil adsorbed by the adsorption head, and other than the electrode foil which is adsorbed by the adsorption head when the adsorption head holds a plurality of the electrode foils And a lower surface suction cleaner for suctioning and peeling off unnecessary electrode foils.

  In the electrode foil conveying apparatus according to the present invention, the lower surface suction cleaner peels off the electrode foil when the unnecessary electrode foil other than the electrode foil directly adsorbed by the suction head is attracted and peeled off. Preferably, a sensor for detecting is provided.

  As described above, by providing a sensor that detects peeling of the electrode foil that the lower surface suction cleaner does not need, for example, after detecting peeling of the electrode foil, the suction of the lower surface suction cleaner is temporarily stopped. Therefore, it is possible to remove the peeled electrode foil (the electrode foil adsorbed by the lower surface suction cleaner) and thereafter clean the lower surface of the electrode foil adsorbed by the adsorption head again, which makes the present invention more effective. It can be

Further, the receiving stage is configured to adsorb and hold the transported electrode foil, and
While suctioning and cleaning the upper surface of the transported electrode foil on the upper surface side of the receiving stage, the receiving stage is directly adsorbed when a plurality of electrode foils are transported on the receiving stage It is preferable to have an upper surface suction cleaner that sucks and peels electrode foils other than the electrode foil.

  With the above configuration, the upper surface of the electrode foil can be cleaned on the receiving stage, and the receiving stage is directly adsorbed when a plurality of electrode foils are transported on the receiving stage. It becomes possible to peel off and remove the electrode foil other than the electrode foil, and to clean the upper surface of the electrode foil directly adsorbed to the receiving stage again after that, thus the present invention can be made more effective. .

  The upper surface suction cleaner preferably includes a sensor that detects that the electrode foil has been peeled when the electrode foil other than the electrode foil directly adsorbed by the receiving stage is sucked and peeled off.

  As described above, the upper surface suction cleaner has a sensor for detecting the peeling of the electrode foil. For example, after the peeling of the electrode foil is detected, the suction of the upper surface suction cleaner is temporarily stopped and the peeling is performed. It is possible to remove the deposited electrode foil (the electrode foil adsorbed by the upper surface suction cleaner) and to clean the upper surface of the electrode foil adsorbed to the receiving stage again, thereby making the present invention more effective. Can.

  Further, it is preferable that a suction hole is provided in a region near the outer edge inside the region on which the transported electrode foil is to be placed on the receiving stage.

  With the above configuration, when the mounting position of the electrode foil on the receiving stage is shifted, the suction hole provided at a position near the outer edge inside the area on which the electrode foil is to be mounted Become. Therefore, the pressure of the suction hole can be detected to detect the displacement of the electrode foil, and the displacement of the electrode foil on the receiving stage can be detected without using a special detection device. It will be.

Further, an adsorption head comprising: a coated portion adsorption head for adsorbing the coated portion of the electrode foil as the adsorption head; and an uncoated portion adsorption head for adsorbing the uncoated portion of the electrode foil Used, and
An uncoated portion suction head drive mechanism for moving the uncoated portion suction head in the vertical direction independently of vertical movement of the head main body by the head drive mechanism;
It is preferable to further include: a gas injection means for injecting a gas to the uncoated portion from the side surface side of the predetermined area of the peripheral edge portion of the electrode foil main body where the uncoated portion is positioned.

In the case of the above configuration, it becomes possible to move the uncoated portion suction head in the vertical direction independently of the vertical movement of the head main body (the coated portion suction head held by the head body). The electrode foil can be deformed between the working portion and the coating portion to promote peeling. In addition, for example, in the gap between the second and subsequent electrode foils formed by bending the vicinity of the uncoated portion of the uppermost electrode foil with the uncoated portion adsorption head, the above-mentioned gas jet means By spraying the gas, the electrode foil 10 can be further easily peeled off.
In addition, also when the electrode foil is held and transported by the suction head in a state where two sheets of the electrode foil overlap, the electrode foil other than the electrode foil directly adsorbed by the suction head is suctioned from the lower surface side by the lower surface suction cleaner. It becomes possible to peel off, and it is possible to more reliably prevent that a plurality of electrode foils are simultaneously transported.

  Further, it faces the vicinity of the boundary between the coated part of the electrode foil and the uncoated part between the head and the electrode foil adsorbed by the coated part suction head and the uncoated part suction head. When the uncoated portion of the electrode foil is lifted by moving the uncoated portion adsorption head upward, the rod-like fulcrum member that contacts the electrode foil and serves as a fulcrum of the electrode foil curvature is It is preferable that it is arrange | positioned.

  By providing the above-mentioned rod-like fulcrum member, it becomes possible to increase the curvature in the case of bending the electrode foil by raising the non-coated portion adsorption head alone, for example, two electrodes at the same time When the foil is held by the suction head, it becomes possible to more easily peel off the electrode foil which is not directly held by suction by the suction head.

Further, the uncoated portion suction head drive mechanism is
A communicating member provided with a vacuum suction passage inside;
A vacuum header provided with a sliding surface sliding relative to each other between an internal space communicating with the vacuum suction passage of the communication member and a predetermined surface of the communication member;
Biasing means disposed in the interior space of the vacuum header and biasing the communication member downward;
And a contact member provided on the lower end side of the communication member and in contact with the electrode foil to adsorb the electrode foil.
Preferably, the communication member and the contact member are configured to move in the vertical direction as the volume of the internal space changes according to the degree of vacuum suction.

  By configuring the uncoated portion suction head drive mechanism as described above, the uncoated portion suction head can be moved in the vertical direction, without requiring a mechanism such as a cylinder and the like. It becomes possible to move the coating section suction head. In addition, when the suction (suction) operation is started, the uncoated portion suction head is automatically raised, so it is not necessary to control the rise timing that is required when using a cylinder. Become.

  In addition, a manufacturing apparatus of a laminated type battery of the present invention is characterized by including the above-described electrode foil conveying apparatus of the present invention.

  When the above-described electrode foil transport apparatus is used in a manufacturing apparatus for a laminated battery, a laminate having a defect in which two peeled pieces of electrode foil are in close contact (sticks) and the peeled coating film becomes a contaminant. It is possible to suppress the production of type batteries.

  The electrode foil conveying apparatus according to the present invention comprises: an adsorption head for adsorbing and holding electrode foils stacked in a magazine; a head body for holding the adsorption head; and a head drive mechanism for moving the head body vertically and horizontally When carrying the electrode foil adsorbed by the suction head, the suction head cleans the lower surface of the electrode foil while the suction head holds a plurality of electrode foils. Since the lower surface suction cleaner which sucks and peels electrode foils other than the electrode foil which is directly adsorbed is provided, for example, when the two electrode foils in which the coated portions are in close contact with each other are simultaneously transported, While it becomes possible to peel off the electrode foil by the suction cleaner and to transport the electrode foil one by one, it is also possible to peel off the coated film partially by peeling off the closely adhered electrode foil. It is possible to prevent deteriorating the characteristics of the product were coated film pieces become contaminants.

  That is, for example, when there are two electrode foils in which the coating parts are in close contact with each other in the magazine, the coating film piece from which a part of the coating film is peeled off is attracted by the suction head and peeled off. Although it adheres to the lower surface of the electrode foil held by the suction head, the coated film attached to the lower surface of the electrode foil is removed by the lower surface suction cleaner until it is transported to the receiving stage.

Also, for example, when two sheets of the electrode foil are not simultaneously separated and transported while being held by the suction head at the same time when suctioned by the suction head and taken out from the magazine, they are arranged in front of the receiving stage. By being adsorbed by the lower surface suction cleaner provided, the electrode foil (lower electrode foil) which is not directly adsorbed by the suction head is adsorbed by the lower surface suction cleaner and peeled off. Then, after removing the peeled electrode foil, the lower surface of the electrode foil directly adsorbed by the suction head is cleaned by the lower surface suction cleaner to form a coated film attached to the lower surface of the electrode foil. It can be removed.
Therefore, according to the electrode foil conveying apparatus of the present invention, the electrode foils can be received one by one and conveyed to the stage in a state in which the attached coating film pieces are not included as impurities.

It is the schematic which shows the structure of the conveying apparatus of electrode foil concerning embodiment of this invention. It is a figure which shows typically the electrode plate package produced by the manufacturing apparatus of an electrode plate package. It is a figure which shows the electrode foil conveyed by the conveyance apparatus of electrode foil concerning embodiment of this invention, Comprising: (a) is a top view, (b) is side surface sectional drawing. It is a perspective view which shows the structure of the adsorption | suction head which comprises the conveyance apparatus of electrode foil concerning embodiment of this invention. The conveyance apparatus of electrode foil concerning embodiment of this invention WHEREIN: It is a figure which shows the state which raised the uncoated part adsorption | suction head independently of the coating part adsorption | suction head. It is sectional drawing which shows the structure of the uncoated part adsorption | suction head drive mechanism of the conveyance apparatus of electrode foil concerning embodiment of this invention, Comprising: (a) is the communicating member (nozzle) which comprises an uncoated part adsorption | suction head (B) shows a state in which the communicating member and the abutting member are raised. The electrode foil conveying apparatus concerning embodiment of this invention WHEREIN: It is a figure which shows the state which has mounted the electrode foil conveyed on the receiving stage. It is a figure which shows the structure of the conventional conveying apparatus of electrode foil.

  FIG. 1 is a schematic view showing the configuration of the main part of a transfer device for electrode foil according to an embodiment of the present invention. Moreover, FIG. 2 is a figure which shows the electrode foil conveyed by the conveyance apparatus of electrode foil of this invention, Comprising: (a) is a top view, (b) is side surface sectional drawing.

  The electrode foil 10 to be transported in the electrode foil transport device is to be an electrode of a laminated battery, and as shown in FIGS. 2 (a) and 2 (b), it is formed on predetermined regions of both main surfaces. It has the coated part 11 in which the electrode material 11a containing an active material was coated, and the uncoated part 12 which is a peripheral part predetermined area | region to which the electrode material is not coated.

When the electrode foil is an electrode foil for a positive electrode, the coating portion is coated with an active material for the positive electrode, and when the electrode foil is a negative electrode, the coating portion is a negative electrode. The active material is coated. Moreover, as metal foil used as the electrode foil main body 20, aluminum foil, copper foil, etc. are used, for example.
In addition, in this electrode foil 10, the uncoated part 12 is an area | region which functions as a tab.

  Further, as shown in FIG. 1, the electrode foil conveying apparatus of this embodiment is a conveying apparatus for conveying a plurality of electrode foils 10 stacked in the magazine 1 one by one to the receiving stage 50, The suction head 2 for suctioning and holding the electrode foils of the uppermost layers of the plurality of electrode foils 10 stacked in the magazine 1, the head body 3 for holding the suction head 2, and the head body 3 vertically and horizontally The head drive mechanism 4 is provided.

  In this embodiment, as the suction head 2, a coated portion suction head 2a for suctioning the coated portion 11 of the electrode foil 10 and an uncoated portion for suctioning the uncoated portion 12 of the uppermost electrode foil 10 A suction head provided with the suction head 2b is used. The coated portion suction head 2 a and the uncoated portion suction head 2 b are held by the head main body 3, and by driving the head body 3 by the head drive mechanism 4, the coated portion suction head 2 a and the uncoated portion The suction head 2b can be moved together with the head body 3 in the vertical and horizontal directions.

  Further, the uncoated portion suction head 2 b is vertically moved by the uncoated portion suction head drive mechanism 5 independently of the vertical movement of the head main body 3 by the head drive mechanism 4. It is configured to be able to move in a direction.

  In the electrode foil transport apparatus of this embodiment, as shown in FIG. 3, the suction head 2 sucks the two coated portion suction heads 2 a that suction the coated portion 11 and the uncoated portion 12. A total of three heads of one uncoated portion adsorption head 2b are provided, and the coated portion 1 and the uncoated portion 12 of the electrode foil 10 can be adsorbed in a balanced manner.

  Furthermore, the electrode foil conveying device of this embodiment injects gas (air in this embodiment) from the side surface side of the peripheral region predetermined region of the electrode foil 10 where the uncoated portion 12 is located to the uncoated portion 12 A gas injection nozzle (gas injection means) 16 is provided.

  From the viewpoint of efficiently blowing the gas onto the entire surface of the electrode foil as the gas jet nozzle 16, although it is usually preferable to provide a plurality of the gas jet nozzles 16, the number thereof is not limited. Also, in some cases, one having a wide width may be used alone.

  As the gas ejected from the gas injection nozzle 16, the air which has been neutralized by the static eliminator is used. This makes it easy to prevent adhesion (sticking) of the electrode foils due to static electricity and to remove contaminants attached to the electrode foil.

  Further, on the side opposite to the side on which the gas jet nozzle 16 is disposed, the gas jetted from the gas jet nozzle 16 and foreign substances such as a coated film piece blown away by the gas are sucked and removed. A dust collection duct (not shown) is provided. By providing the dust collection duct, it is possible to prevent the foreign matter such as the coated film piece blown off by the gas from diffusing around, smooth the flow of the blown gas, and make it easy to peel off the electrode foil. It will be possible to

  The electrode foil transport apparatus also includes a lower surface suction cleaner 30 that sucks and cleans the lower surface of the electrode foil 10 when transporting the electrode foil 10 adsorbed by the suction head 2.

  The lower surface suction cleaner 30 sucks and cleans the lower surface of the electrode foil 10 from the suction holes 30a, and when the suction head 2 holds a plurality of electrode foils 10, the suction head 2 directly sucks The electrode foils other than the existing electrode foils 10 can be sucked and peeled off.

  Furthermore, in the electrode foil conveying apparatus of this embodiment, the lower surface suction cleaner 30 peels off the electrode foil 10 when the electrode foil other than the electrode foil 10 directly adsorbed by the suction head 2 is sucked and peeled off. The sensor 31 which detects that is provided. For example, a photoelectric sensor can be used as the sensor 31.

  When the lower surface suction cleaner 30 is configured to include the sensor 31 for detecting the peeling of the electrode foil 10, for example, after the peeling of the electrode foil 10 is detected, the suction of the lower surface suction cleaner 30 is temporarily stopped It is possible to remove the formed electrode foil (the electrode foil adsorbed by the lower surface suction cleaner 30) and thereafter clean the lower surface of the electrode foil 10 adsorbed by the adsorption head 2 again.

  Further, the receiving stage 50 has a function of receiving the held electrode foil 10 and holding it by suction. Further, the receiving stage 50 is a suction hole 50a for vacuum suction for adsorbing and fixing the electrode foil 10, and an area inside of the area on which the transported electrode foil 10 is to be placed, and is close to the outer edge It has a suction hole 50b provided at a position. In this embodiment, the suction holes 50c are provided at positions outside the area where the electrode foil 10 is to be placed and near the outer edge.

  When the suction holes 50b are provided near the outer edge, if the mounting position of the electrode foil 10 on the receiving stage 50 is shifted, the outer edge of the area on which the electrode foil 10 is to be mounted is Since the suction holes 50b provided at close positions are opened to the atmosphere, it is possible to detect the positional deviation of the electrode foil 10 by detecting the suction pressure from the suction holes 50b. As a result, the positional deviation of the electrode foil 10 on the receiving stage 50 can be detected without using a special detection device.

  Further, as in this embodiment, the suction pressure of the suction holes 50b and 50c is detected by providing the suction holes 50c at positions outside the area where the electrode foil 10 is to be placed and near the outer edge. This makes it possible to detect the position of the electrode foil 10 more accurately. Also, for example, when the two electrode foils are misaligned and placed on the receiving stage 50, the two electrode foils are positioned because the suction holes 50b and 50c are closed by the respective electrode foils. It is possible to detect that the sheet is placed in a shifted state.

  Further, on the upper surface side of the receiving stage 50, an upper surface suction cleaner 60 is disposed which cleans the upper surface of the transported electrode foil 10 by suction from the suction holes 60a. The upper surface suction cleaner 60 sucks and cleans the upper surface of the electrode foil 10 held by the receiving stage 50, and when the plurality of electrode foils 10 are conveyed on the receiving stage 50, the receiving stage 50 is directly It is comprised so that attraction | suction can be carried out and electrode foils other than the electrode foil 10 currently adsorbed can be peeled off.

  By providing the upper surface suction cleaner 60, the upper surface of the electrode foil 10 can be cleaned on the receiving stage 50, and, for example, when a plurality of electrode foils 10 are transported on the receiving stage 50. , It is possible to peel off and remove the electrode foil other than the electrode foil 10 to which the receiving stage 50 is adsorbed, and then to clean the upper surface of the electrode foil 10 adsorbed to the receiving stage 50 again. Become.

  Further, the upper surface suction cleaner 60 is provided with a sensor 61 which detects that the electrode foil has been peeled when the electrode foil other than the electrode foil 10 to which the receiving stage 50 is directly adsorbed is attracted and peeled off. As the sensor 61, for example, a photoelectric sensor can be used.

  As described above, the upper surface suction cleaner 60 is configured to include the sensor 61 that detects the peeling of the electrode foil. For example, after the peeling of the electrode foil is detected, the suction of the upper surface suction cleaner 60 is temporarily stopped. Thus, it is possible to remove the peeled electrode foil (the electrode foil adsorbed by the upper surface suction cleaner 60), and thereafter to clean the upper surface of the electrode foil 10 adsorbed by the receiving stage 50 again.

  Further, it faces the vicinity of the boundary between the coated portion 11 and the uncoated portion 12 of the electrode foil 10 between the electrode foil 10 and the head main body 3 adsorbed by the coated portion suction head 2a and the uncoated portion suction head 2b. When the uncoated portion 12 of the electrode foil 10 is lifted by the upward movement of the uncoated portion suction head 2b, a rod-like fulcrum serves as a fulcrum when the electrode foil 10 is bent by coming into contact with the electrode foil 10. A member 15 is provided.

  When the rod-like fulcrum member 15 described above is provided, as shown in FIG. 4, the uncoated portion suction head 2 b is moved upward by moving the head main body 3 independently of the vertical movement. The curvature at the time of bending the electrode foil 10 can be increased. For example, when two electrode foils 10 are simultaneously held by the suction head 2, they are directly held by suction by the suction head 2. It becomes possible to make it easy to peel off the electrode foil of the other.

  In addition, as the rod-like fulcrum member 15, it is preferable to use what coated the shock absorbing material which has elasticity, such as rubber | gum, on the surface so that electrode foil may not be damaged when it contact | abuts.

In addition, in the electrode foil conveyance device according to this embodiment, as shown in FIGS. 5A and 5B as the uncoated portion suction head drive mechanism 5,
(A) A communication member (nozzle) 6 which is a member constituting an uncoated portion suction head 2b and which has a vacuum suction passage 6a in the inside;
(B) A sliding surface (inner peripheral surface) sliding between the internal space 7a communicating with the vacuum suction passage 6a of the communication member 6 and a predetermined surface (the outer peripheral surface 6b in this embodiment) of the communication member 6 A vacuum header 7 with a surface 7b,
(C) biasing means 8 disposed in the internal space 7a of the vacuum header 7 and biasing the communication member 6 downward;
(D) A contact member (suction pad) 9 provided on the lower end side of the communication member 6 for suctioning the electrode foil 10 in contact with the electrode foil 10;
A mechanism is used.
In the non-coated portion suction head drive mechanism 5, a part thereof (the communication member (nozzle) 6 and the contact member (suction pad) 9) constitutes the non-coated portion suction head 2b.

In addition, although a spring is used as the biasing means 8 here, it is also possible to use a thing using a magnetic force etc.
Further, in this embodiment, the contact member (suction pad) 9 is disposed on the lower end side of the communication member (nozzle) 6, but without providing the contact member (suction pad) 9, the communication member (the nozzle It is also possible to adsorb the electrode foil at the lower end face of 6).

According to the uncoated portion suction head driving mechanism 5, when the degree of vacuum suction becomes strong, as shown in FIG. 5B, the urging force of the urging means (the spring in this embodiment) is overcome. The communication member 6 is retracted into the vacuum header 7, and the uncoated portion 12 of the electrode foil vacuum-adsorbed in contact with the contact member 9 (uncoated portion suction head 2b) is lifted upward.
On the other hand, when the degree of vacuum suction becomes weak or the vacuum suction is stopped, the biasing force of the biasing means (the spring in this embodiment) becomes large, and as shown in FIG. Is pushed out from the vacuum header 7, and the uncoated portion of the electrode foil vacuum-adsorbed in contact with the contact member 9 (uncoated portion suction head 2b) is pushed downward.

  In this manner, by moving the communication member 6 in the vertical direction depending on the degree of vacuum suction, the contact member 9 (the uncoated portion suction head 2b) can be moved up and down together with the communication member 6. As a result, for example, the non-coated portion suction head can be moved in the vertical direction independently of the movement of the head main body in the vertical direction by the head drive mechanism without requiring a driving means such as an air cylinder. It is possible to configure an uncoated portion suction head drive mechanism.

  Next, an operation in the case of transporting an electrode foil (positive electrode foil or negative electrode foil) used for a lithium ion secondary battery, for example, using the electrode foil transport device of this embodiment will be described.

  For example, an electrode foil (a positive electrode foil or a negative electrode foil) used for a lithium ion secondary battery may be supplied in a state in which the thickness is very thin and a plurality of sheets are in close contact with each other. In the case of using the electrode foil transport apparatus of the present invention, the electrode foil is reliably transported from the magazine to the receiving stage through the steps described below.

(1) First, the electrode foil 10 of the uppermost layer of the magazine 1 is picked up by the suction head 2 provided with the coated portion suction head 2a and the uncoated portion suction head 2b.
Then, the uncoated portion suction head 2b is raised by the uncoated portion suction head drive mechanism 5 independently of the coated portion suction head 2a, and the electrode foil 10 is curved to facilitate peeling. In addition, since the conveyance apparatus of electrode foil of this embodiment is equipped with the rod-shaped fulcrum member 15, the curvature of the electrode foil 10 is enlarged by raising the uncoated part adsorption | suction head 2b, and electrode foil is made more It can be made easy to peel off.

In addition, the gas injection means 6 injects gas from the side surface side of the predetermined area of the peripheral portion of the electrode foil 10 to the uncoated portion 12. In addition, the electrode foil 10 is further easily peeled off by injecting a gas from the gas injection means 6 into a gap with the lower electrode foil formed by curving the uppermost electrode foil 10.
In addition, the second and subsequent electrode foils can be more easily peeled off by shaking the suction head 2 (coated portion suction head 2a, uncoated portion suction head 2b) vertically and horizontally, or by applying vibration. It can also be configured.

  (2) Next, while the suction head 2 transports the electrode foil 10 to the receiving stage 50, the lower surface suction cleaner 30 sucks and removes contaminants such as a coated film piece from the lower surface of the electrode foil 10 . Then, when the second and subsequent electrode foils have been adhered until this time, the second and subsequent electrode foils are sucked by the lower surface suction cleaner 30 and peeled off. When the electrode foil is peeled, the sensor 31 detects the peeling of the electrode foil. Then, after the peeling of the electrode foil is detected, the suction of the lower surface suction cleaner 30 is temporarily stopped to remove the peeled electrode foil, and thereafter, the lower surface of the electrode foil 10 adsorbed by the suction head 2 is removed. Clean again.

  (3) Then, as shown in FIG. 6, the electrode foil 10 held by the suction head 2 is transferred onto the receiving stage 50. In the receiving stage 50, in addition to the suction holes 50a for vacuum suction for fixing the electrode foils 10, the suction holes 50b are located inside the area on which the electrode foils 10 are to be placed and close to the outer edge. Is provided. By detecting the vacuum pressure or the flow rate of the suction hole 50b, the positional deviation of the electrode foil can be detected. Then, when the positional deviation is detected, the position correction is performed as needed. In the case where the vacuum pressure or flow rate of the suction hole 50b is caused by, for example, mixing of small-sized products, breakage or bending of the electrode foil, the electrode foil can be removed.

  When the electrode foil 10 held by the suction head 2 is transferred to the receiving stage 50, the coated head among the coated portion suction head 2a and the uncoated portion suction head 2b constituting the suction head 2 is not coated. Even when the electrode foil 10 is conveyed with only the work area suction head 2b raised and placed on the receiving stage 50, the coating portion 11 of the electrode foil 10 adsorbed by the coating area suction head 2a is received. In the state where only the uncoated portion suction head 2b is in the raised position and the uncoated portion 12 is not in contact with the receiving stage 50, the vacuum suction of the coated portion suction head 2a is stopped. By stopping vacuum suction of the coating section suction head 2b, the side of the electrode foil 10 which is reliably held at the predetermined position by the coating section suction head 2a is first placed on the receiving stage 50. It becomes therefore possible to stabilize the positional accuracy.

  When the rod-like fulcrum member 15 is provided and the curvature of the electrode foil 10 is increased by raising the uncoated portion suction head 2b as in the electrode foil conveying device of this embodiment, the unpainted portion is unpainted. Slippage occurs between the machined portion 12 and the uncoated portion suction head 2b, but as described above, the electrode foil 10 is received on the receiving stage 50 from the side of the electrode foil 10 held by the coated portion suction head 2a. Position accuracy is secured by mounting.

  In some cases, before mounting the electrode foil 10 on the receiving stage 50, the uncoated portion suction head 2b is lowered to make the uncoated portion suction head 2b the same height as the coated portion suction head 2a. After the head body 3 is lowered and the electrode foil 10 is received and transferred onto the stage, vacuum suction of the coated portion suction head 2a and the uncoated portion suction head 2b may be stopped.

  However, the upper and lower positional relationship between the coated portion suction head 2a and the uncoated portion suction head 2b when transferring the electrode foil 10 to the receiving stage 50 and the positional relationship between the receiving stage 50 are limited to the above-described embodiment. It is possible to make various aspects instead.

(4) Then, while moving the receiving stage 50 to, for example, a handler of the next step, the upper surface suction cleaner 60 sucks and removes contaminants on the upper surface of the electrode foil 10. Then, when the second and subsequent electrode foils have been attached until this time, the upper surface suction cleaner 60 adsorbs the second and subsequent electrode foils other than the electrode foil directly adsorbed by the receiving stage 50. Can be peeled off. When the electrode foil is peeled, the sensor 61 detects the peeling of the electrode foil. After the peeling of the electrode foil is detected, for example, the suction of the upper surface suction cleaner 60 is temporarily stopped to remove the peeled electrode foil, and then the upper surface of the electrode foil 10 adsorbed to the receiving stage 50 is cleaned again Do.
By operating as described above using the electrode foil transport device of this embodiment, it becomes possible to reliably transport the electrode foils one by one.

  As described above, the electrode foil conveyance device of this embodiment includes the suction head 2 that holds the electrode foil 10 stacked in the magazine 1 by suction, the head main body 3 that holds the suction head 2, and the head main body 3. A head drive mechanism 4 for moving the head vertically and horizontally, and a lower surface suction cleaner 30 for suctioning and cleaning the lower surface of the electrode foil 10 when transporting the electrode foil 10 adsorbed by the adsorption head 2 In the case where the suction head 2 holds a plurality of electrode foils 10, the lower surface suction cleaner 30 sucks and peels the electrode foils other than the electrode foil 10 that is directly adsorbed by the suction head 2. Is configured.

  Therefore, even when the coated film is peeled off and the coated film piece adheres to the lower surface of the electrode foil when taken out from the magazine 1, the lower surface of the electrode foil 10 is cleaned by the lower surface suction cleaner 30, Contamination can be prevented.

  In addition, temporarily, when the two electrode foils 10 in which the coated portions 11 are in close contact with each other are simultaneously held by the suction pad 2 and transported, the electrode foil 10 is peeled off by the lower surface suction cleaner 30 to Can be reliably transported one by one.

  In addition, since the upper surface suction cleaner 60 is provided, the upper surface of the electrode foil 10 transported to the receiving stage 50 can be cleaned to prevent the contamination from being mixed.

  In addition, even if the two electrode foils 10 in which the coating portions 11 are in close contact with each other pass through the lower surface suction cleaner 30 and are conveyed to the receiving stage 50, the electrode foil 10 is not removed by the upper surface suction cleaner 60. Can be peeled off. Also, in this case, the electrode foil other than the electrode foil 10 adsorbed by the receiving stage 50 is peeled off by the upper surface suction cleaner 60, and then the upper surface of the electrode foil adsorbed by the receiving stage is cleaned again by the upper surface suction cleaner 60. It is possible to avoid contamination of foreign matter.

  Therefore, by using the electrode foil transport device of this embodiment, it becomes possible to reliably transport the electrode foils free of contaminants such as a coated film piece one by one, and efficiently manufacturing a laminated battery. You will be able to

  Further, in the electrode foil conveyance device of the above embodiment, the uncoated portion suction head 2b constituting the suction head 2 can be moved in the vertical direction independently of the coated portion suction head 2a. The electrode foil 10 can be deformed between the uncoated portion 12 and the coated portion 11 to promote peeling.

  Also, by making the uncoated portion suction head drive mechanism as shown in FIGS. 4A and 4B described above, a cylinder or the like for moving the uncoated portion suction head in the vertical direction It is possible to move the uncoated portion suction head with a simple configuration without requiring a mechanism. In addition, when the suction (suction) operation is started, the uncoated portion suction head is automatically raised, so it is not necessary to control the rise timing that is required when using a cylinder. Become.

  The present invention is not limited to the above embodiment, and various applications and modifications can be made within the scope of the invention.

Reference Signs List 1 magazine 2 suction head 2a coated portion suction head 2b uncoated portion suction head 3 head main body 4 head drive mechanism 5 uncoated portion suction head drive mechanism 6 communicating member (nozzle)
6a Vacuum suction passage 6b Outer peripheral surface of communicating member 7 Vacuum header 7a Internal space 7b Sliding surface with outer peripheral surface of communicating member (inner peripheral surface)
8 biasing means 9 contact member (suction pad)
DESCRIPTION OF SYMBOLS 10 electrode foil 11 coated part 11a electrode material 12 uncoated part 15 rod-shaped fulcrum member 16 gas injection nozzle (gas injection means)
20 electrode foil main body 30 lower surface suction cleaner 30a suction hole of lower surface suction cleaner 31 sensor provided at lower surface suction cleaner 50 receiving stage 50a suction hole 50b for attracting and fixing electrode foil 10 position close to outer edge of electrode foil mounting area Suction hole 50c disposed in the suction hole 60c located at a position near the outer edge of the area outside the electrode foil placement area 60 top suction cleaner 60a suction hole on the top suction cleaner 61 sensor provided on the top suction cleaner

Claims (9)

It has a coated part by which electrode material was applied to a predetermined field of both principal surfaces of electrode foil main part, and an uncoated part to which the electrode material of the peripheral part predetermined area of electrode foil main part is not applied, A conveying device for conveying electrode foils stacked in a magazine to a receiving stage one by one.
An adsorption head for adsorbing and holding the electrode foil of the uppermost layer of the plurality of electrode foils stacked in the magazine;
A head body for holding the suction head;
A head drive mechanism for moving the head body vertically and horizontally;
While suctioning and cleaning the lower surface of the electrode foil adsorbed by the adsorption head, and other than the electrode foil which is adsorbed by the adsorption head when the adsorption head holds a plurality of the electrode foils And a lower surface suction cleaner for suctioning and peeling off unnecessary electrode foil.   The lower surface suction cleaner is characterized by including a sensor for detecting that the unnecessary electrode foil is peeled when the electrode foil other than the electrode foil directly adsorbed by the suction head is sucked and peeled off. The conveying apparatus of electrode foil of Claim 1 made into the said. The receiving stage is configured to adsorb and hold the transported electrode foil, and
While suctioning and cleaning the upper surface of the transported electrode foil on the upper surface side of the receiving stage, the receiving stage is directly adsorbed when a plurality of electrode foils are transported on the receiving stage The upper surface suction cleaner which attracts | sucks and peels electrode foils other than electrode foil is provided. The conveying apparatus of electrode foil of Claim 1 or 2 characterized by the above-mentioned.   The upper surface suction cleaner includes a sensor for detecting that the electrode foil is peeled when the electrode foil other than the electrode foil directly adsorbed by the receiving stage is sucked and peeled off. The conveying apparatus of the electrode foil of claim 3.   The electrode according to any one of claims 1 to 4, wherein a suction hole is provided in a region near the outer edge of the inner side of the region where the transported electrode foil is to be placed on the receiving stage. Foil transport device. As the suction head, a suction head comprising a coated portion suction head for suctioning the coated portion of the electrode foil and an uncoated portion suction head for suctioning the uncoated portion of the electrode foil is used. And,
An uncoated portion suction head drive mechanism for moving the uncoated portion suction head in the vertical direction independently of vertical movement of the head main body by the head drive mechanism;
The gas injection means which injects gas to the said uncoated part from the side surface side of the said peripheral part predetermined area of the said electrode foil main body in which the said uncoated part is located is characterized by the above-mentioned. The conveying apparatus of electrode foil in any one of-.   A position between the coated portion of the electrode foil and the vicinity of the boundary between the uncoated portion of the electrode foil, between the electrode foil and the head main body adsorbed by the coated portion suction head and the uncoated portion suction head When the uncoated portion of the electrode foil is lifted by the upward movement of the uncoated portion suction head, a rod-like fulcrum member which contacts the electrode foil and serves as a fulcrum of bending of the electrode foil is disposed. The conveyance apparatus of electrode foil of Claim 6 characterized by the above-mentioned. The uncoated portion suction head drive mechanism is
A communicating member provided with a vacuum suction passage inside;
A vacuum header provided with a sliding surface sliding relative to each other between an internal space communicating with the vacuum suction passage of the communication member and a predetermined surface of the communication member;
Biasing means disposed in the interior space of the vacuum header and biasing the communication member downward;
And a contact member provided on the lower end side of the communication member and in contact with the electrode foil to adsorb the electrode foil.
The communication member and the contact member are mechanisms configured to move in the vertical direction as the volume of the internal space changes according to the degree of vacuum suction. The conveying apparatus of electrode foil as described in-.   The manufacturing apparatus of the laminated type battery provided with the conveyance apparatus of electrode foil in any one of Claims 1-8.

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