JP2012216447A - Carrier device for electrode foil and device for manufacturing laminate battery - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a carrier device for an electrode foil capable of surely preventing such failure that a plurality of electrode foils are lifted at once at the time of electrode foil transportation, and to provide a device for manufacturing a laminate battery.SOLUTION: Electrode foils 6 are stacked so that all non-painted parts 8 are positioned on the same side, on a pedestal part 18. Firstly, the non-painted part 8 of the electrode foil 6 at a top layer is sucked by a multi-state bellows suction pad 36 for upward movement. Here, a compressed air is jetted from an air blow nozzle 42 on the side of the non-painted part 8. As a result, an end edge of a painting part 7 of the electrode foil 6 at the top layer is separated from the end edge of the painting part 7 of the electrode foil 6 at the layer directly below the top layer, and then, the entire electrode foil 6 is moved upward. The non-painted part 8 whose thickness is less than the painting part 7, being not tightly contacted, is preferentially lifted. The end edge of the painting part 7 of the electrode foil 6 at the top layer is easy to be separated from the end edge of the painting part 7 of the electrode foil 6 at the layer directly below the top layer, and only the electrode foil 6 at the top layer is more surely lifted.

Description

  The present invention relates to an electrode foil conveying device and a laminated battery manufacturing device used in a manufacturing process of a laminated battery and the like.

  In the manufacturing process of the laminated structure type battery, the positive electrode foil and the negative electrode foil in the form of a sheet are alternately laminated via separators. Each of the positive electrode foil and the negative electrode foil is configured by applying an active material to a predetermined metal electrode foil main body. The separator is made of, for example, an electrically insulating porous resin film.

  Conventionally, when laminating these positive electrode foil, negative electrode foil, and separator, various methods are employed. For example, there is a technique in which a plurality of conveying devices are prepared corresponding to each of the positive foil, the negative foil, and the separator, and the electrode foils and the separators are alternately laminated at predetermined lamination positions by using each conveying device. In addition, each electrode foil or separator is supplied to a predetermined position using a transport device, and the electrode foil or separator supplied to each predetermined position is stacked at a position different from the predetermined position using a separate stacking device. There is also a technique to do this (see, for example, Patent Document 1).

  Regardless of which method is employed, the positive foil and the negative foil that are laminated at a predetermined lamination position or supplied to the predetermined position need to be conveyed one by one. For this reason, at the time of conveyance, suction means such as a suction pad is used to suck only one upper electrode foil.

  However, even if a suction pad or the like is used, there is a concern that a plurality of electrode foils may be lifted at once if the electrode foils are in close contact with each other. On the other hand, a plurality of rows of suction pads are brought into contact with the uppermost sheet material, a part thereof is lifted, and then compressed air is blown into the gap with the lowermost sheet material, and then the uppermost sheet material. A technique of lifting the whole is disclosed (for example, refer to Patent Document 2 etc .; however, Patent Document 2 differs from the present application in that it is an ultra-large aluminum sheet material having a thickness of 5 mm).

JP 2008-282756 A JP-A-9-194056

  However, even when the technique described in Patent Document 2 is applied to the conveyance of the electrode foil, the edge of the uppermost electrode foil and the edge of the electrode foil immediately below it are in close contact with each other. If it is, it can happen that two sheets are still lifted simultaneously. In this case, no matter how the compressed air is blown in the state where the two sheets are lifted at the same time, the compressed air is only blown between the second and third sheets. They are not separated. Therefore, even if it has the said technique, the concern that several electrode foil will be lifted at once cannot be wiped off.

  The present invention has been made in view of the above circumstances, and when conveying an electrode foil, an electrode foil conveying apparatus that can more reliably prevent a problem that a plurality of electrode foils are lifted at once, and One of the main purposes is to provide an apparatus for manufacturing a laminated battery.

  In the following, each means suitable for solving the above-described object will be described in terms of items. In addition, the effect specific to the means to respond | corresponds as needed is added.

Means 1. An electrode foil body made of a metal foil, and an active material coated and formed on both front and back surfaces of the electrode foil body, and a coating portion formed by coating the active material, and extending from an edge of the coating portion An electrode foil for a laminated battery having an uncoated portion formed by exposing the electrode foil main body, from the first position where the uncoated portions are all laminated on the same side, from the first position An electrode foil transport device for transporting one sheet at a time to a second position different from the first position,
A coating portion adsorbing means capable of adsorbing the coating portion of the uppermost electrode foil among the electrode foils laminated in the first position;
A vertical movement means capable of moving at least the coating part adsorption means in the vertical direction;
Horizontal movement means capable of moving at least the coating part adsorption means in a horizontal direction;
Provided separately from the coated part adsorption means, uncoated part adsorption means capable of adsorbing the uncoated part of the uppermost electrode foil,
An uncoated part vertical movement means provided separately from the vertical movement means and capable of moving the uncoated part adsorption means in the vertical direction;
By operating the uncoated part up-and-down moving means, the uncoated part adsorption means adsorbs the uncoated part of the uppermost electrode foil and moves it up, thereby applying the uppermost electrode foil. After the edge of the working part is separated from the edge of the coating part of the electrode foil immediately below it, the uppermost electrode in the suction state by the coating part suction means by operating the vertical movement means An apparatus for transporting an electrode foil, wherein the foil coating part is moved up.

  In the present invention including the above means 1, all of the present invention have electrode foils laminated at the first position having a coated part and an uncoated part, and the uncoated parts are all on the same side. It was made paying attention to the point laminated | stacked so that it may be located. That is, the thickness of the uncoated portion is smaller than the thickness of the coated portion by a certain amount of the active material. Therefore, in the above-described laminated state of the electrode foil, although there is a possibility that the coated parts are in close contact with each other, a gap is easily formed between the uncoated parts, and the adhesion is unlikely to occur. In view of this point, each invention of the present application has a technical feature in that it is first preferentially lifted (separated) from the uncoated portion side.

  Now, according to the means 1, the uncoated part up-and-down moving means is operated first, and the uncoated part of the uppermost electrode foil is adsorbed and moved up by the uncoated part adsorption means. Along with this, the edge of the coating portion of the uppermost electrode foil is separated from the edge of the coating portion of the immediately lower electrode foil, and then the vertical movement means is operated, and the coating is performed. The coating portion of the uppermost electrode foil in the suction state by the portion suction means is moved up.

  As described above, in the first means, the uncoated portion where no adhesion has occurred is first lifted preferentially, so that the edge of the coated portion of the uppermost electrode foil is the coated portion of the immediately lower electrode foil. As a result, the uppermost electrode foil and the electrode foil immediately below it are separated from each other. For this reason, only the uppermost electrode foil can be lifted more reliably, and as a result, it is possible to more reliably prevent the problem that a plurality of electrode foils are lifted at once.

Mean 2. An electrode foil body made of a metal foil, and an active material coated and formed on both front and back surfaces of the electrode foil body, and a coating portion formed by coating the active material, and extending from an edge of the coating portion An electrode foil for a laminated battery having an uncoated portion formed by exposing the electrode foil main body, from the first position where the uncoated portions are all laminated on the same side, from the first position An electrode foil transport device for transporting one sheet at a time to a second position different from the first position,
A coating portion adsorbing means capable of adsorbing the coating portion of the uppermost electrode foil among the electrode foils laminated in the first position;
A vertical movement means capable of moving at least the coating part adsorption means in the vertical direction;
Horizontal movement means capable of moving at least the coating part adsorption means in a horizontal direction;
Gas injection means capable of injecting gas from the side of the uncoated part,
By moving the uncoated portion of the uppermost electrode foil with the gas sprayed by the gas spraying means, the edge of the coated portion of the uppermost electrode foil becomes the electrode foil immediately below it. After moving away from the edge of the coating portion, the vertical movement means is operated to move up the coating portion of the uppermost electrode foil that is in the suction state by the coating portion suction means Electrode foil transport device.

  According to the means 2, since the uncoated portion of the uppermost electrode foil and the uncoated portion of the immediately lower electrode foil are not in close contact, gas is injected from the side of the uncoated portion. First, the uncoated portion of the uppermost electrode foil is blown up. As a result, the edge of the coating portion of the uppermost electrode foil is separated from the edge of the coating portion of the electrode foil immediately below it, and then the vertical movement means is operated so that the coating is performed. The coating portion of the uppermost electrode foil that is in the suction state by the work portion suction means is moved up.

  In this way, in the means 2, first, the uncoated part where no adhesion occurs is preferentially blown up, so that the edge of the coated part of the uppermost electrode foil is the coated part of the electrode foil immediately below it. As a result, the uppermost electrode foil and the electrode foil immediately below it are separated from each other. For this reason, only the uppermost electrode foil can be lifted more reliably, and as a result, it is possible to more reliably prevent the problem that a plurality of electrode foils are lifted at once.

  It is more effective to adopt the following means 3 and 4.

Means 3. An electrode foil body made of a metal foil, and an active material coated and formed on both front and back surfaces of the electrode foil body, and a coating portion formed by coating the active material, and extending from an edge of the coating portion An electrode foil for a laminated battery having an uncoated portion formed by exposing the electrode foil main body, from the first position where the uncoated portions are all laminated on the same side, from the first position An electrode foil transport device for transporting one sheet at a time to a second position different from the first position,
A coating portion adsorbing means capable of adsorbing the coating portion of the uppermost electrode foil among the electrode foils laminated in the first position;
A vertical movement means capable of moving at least the coating part adsorption means in the vertical direction;
Horizontal movement means capable of moving at least the coating part adsorption means in a horizontal direction;
Provided separately from the coated part adsorption means, uncoated part adsorption means capable of adsorbing the uncoated part of the uppermost electrode foil,
An uncoated part vertical movement means provided separately from the vertical movement means and capable of moving the uncoated part adsorption means in the vertical direction;
An electrode foil transport apparatus comprising gas injection means capable of injecting gas from a side of the uncoated portion.

  Means 4. The uncoated part up-and-down moving means is operated to adsorb the uncoated part of the uppermost electrode foil by the uncoated part adsorption means, and in a state where the uncoated part is moved up, gas is supplied from the gas injection means. Spraying, the edge of the coating portion of the uppermost electrode foil can be separated from the edge of the coating portion of the electrode foil immediately below it, and the vertical movement means is operated to move the coating portion adsorption means 4. The electrode foil transport device according to claim 3, wherein the coating portion of the uppermost electrode foil in the adsorbed state is moved up.

  According to the above means 3, by means of the synergistic action of the uncoated part adsorbing means and the uncoated part vertical movement means and the gas injection means capable of injecting gas from the side of the uncoated part, Lifting as described can be achieved. For this reason, the malfunction that several electrode foil will be lifted at once can be prevented more reliably.

  In particular, according to the means 4, the uncoated part up-and-down moving means is operated, and the uncoated part of the uppermost electrode foil is adsorbed and moved up by the uncoated part adsorption means. The gas is injected from the side of the uncoated part from the gas injection means. As a result, the edge of the coating portion of the uppermost electrode foil can be separated from the edge of the coating portion of the immediately lower electrode foil, and the vertical movement means is operated to apply the coating portion suction means. The coated portion of the uppermost electrode foil in the adsorbed state is moved up. For this reason, the above-mentioned operation effect is more certainly produced.

  Means 5. The electrode foil transport device according to the means 1, 3 or 4, wherein the uncoated portion suction means comprises a suction pad that can be tilted in the vertical direction.

  As described above, when the uncoated parts are all laminated on the same side, the thickness of the uncoated part is smaller than the thickness of the coated part, so the uncoated part hangs diagonally as a whole. It can be said that there is a tendency to be laminated.

  In this respect, according to the means 5, since the uncoated portion suction means includes a suction pad that can be tilted with respect to the vertical direction, even if the uncoated portion of the uppermost electrode foil hangs diagonally. Then, the suction pad tilts following the sagging, and the uncoated portion can be more reliably sucked. Therefore, it is possible to more reliably avoid the problem that the uncoated part is not attracted.

  Means 6. The means 1, 3, 4 or 5 characterized in that the uncoated part suction means and the uncoated part vertical movement means are provided so as to be vertically movable together with the vertical movement by the vertical movement means. Electrode foil transport device.

  According to the means 6, the uncoated part adsorbing means and the uncoated part vertical moving means are moved up and down together with the vertical movement by the vertical moving means. For this reason, when the coated portion of the uppermost electrode foil in the adsorbed state by the coated portion adsorption means is moved upward, the uncoated portion adsorption means and the uncoated portion vertical movement means are independently operated. At least, the uncoated portion of the uppermost electrode foil can be moved in accordance with the upward movement or the like. In this sense, the entire apparatus can be simplified. In addition, as a configuration example for realizing the means 6, for example, “Attaching the coated portion suction means to a predetermined base member, and the uncoated portion suction means and the base member, “Making the uncoated part up-and-down moving means integrated”.

  Moreover, it can also be embodied like the following means 7 using each said means.

  Mean 7 An apparatus for manufacturing a laminated battery, comprising the electrode foil transport device according to any one of means 1 to 6.

It is a schematic block diagram which shows the conveying apparatus in one Embodiment. It is a schematic block diagram which shows a part of manufacturing apparatus of a laminated battery. It is a perspective view which shows the concept of a laminated body. (A) is a top view which shows electrode foil (positive electrode foil, negative electrode foil), (b) is an expanded partial sectional view of the JJ line | wire of (a). (A) is a side view which shows the electrode foil (positive electrode foil, negative electrode foil) in a lamination | stacking state in a 1st position, (b), (c) shows the conveyance process of electrode foil (positive electrode foil, negative electrode foil). It is a partial expanded sectional view. (A)-(d) is process drawing explaining the conveyance process of electrode foil (positive electrode foil, negative electrode foil).

  Hereinafter, an embodiment will be described with reference to the drawings.

  As shown in FIG. 3, the laminated body 4 which comprises a laminated battery is laminated | stacked so that the negative electrode foil 1, the separator 2, the positive electrode foil 3, and the separator 2 may be repeatedly piled up in this order from the bottom ( Of course, the positive electrode foil 3 may be positioned in the lowermost layer, and the separator 2, the negative electrode foil 1, the separator 2, the positive electrode foil 3,. As shown in FIGS. 4A and 4B, each of the negative electrode foil 1 and the positive electrode foil 3 includes a planar rectangular portion and a protruding portion protruding from a part thereof, and an electrode foil main body 1A made of a metal foil. , 3A and active materials 1B, 3B applied and formed on both front and back surfaces of the electrode foil bodies 1A, 3A. The electrode foil main body 1A of the negative electrode foil 1 is made of copper, and the electrode foil main body 3A of the positive electrode foil 3 is made of aluminum. Hereinafter, when it is not particularly necessary to distinguish between positive and negative, the negative electrode foil 1 and the positive electrode foil 3 are collectively referred to as “electrode foil 6”. The electrode foil 6 has a coated portion 7 formed by applying active materials 1B and 3B, and an uncoated portion 8 corresponding to the projecting portion and exposed from the electrode foil main bodies 1A and 3A. ing.

  Returning to FIG. 3, the separator 2 is made of an electrically insulating sheet-like porous resin film, and is slightly more than the planar rectangular portion (the coating portion 7) of the negative electrode foil 1 and the positive electrode foil 3. It has a large rectangular shape. In an appropriate layered state, the rectangular portions (coating portion 7) of the positive electrode foil 3 and the negative electrode foil 1 are completely covered (not protruding) by the separator 2, and the positive foil 3 and the negative electrode foil 1 are covered. Each projecting portion, that is, only the uncoated portion 8 projects from the separator 2 at different positions. Each uncoated portion 8 corresponds to a negative electrode tab and a positive electrode tab, and is an area electrically connected to the negative electrode and the positive electrode of the electrode terminal inside the laminated battery.

  FIG. 2 is a schematic configuration diagram (plan view) showing a main part of a laminated battery manufacturing apparatus (apparatus for obtaining a laminated body) 10. As shown in the figure, the manufacturing apparatus 10 includes a separator supply stage 11, an electrode foil supply stage 12, and a lamination stage 13. On the separator supply stage 11, the separator 2 is supplied one by one for each stacking. Moreover, the negative electrode foil 1 and the positive electrode foil 3 are alternately supplied to the electrode foil supply stage 12 one by one every time of lamination.

  The manufacturing apparatus 10 also includes a guide rail 14 provided so as to pass above the center of each of the stages 11 to 13. The guide rail 14 is supported by a support (not shown). A transport arm 15 is supported in a suspended state on the guide rail 14, and a suction pad 16 is provided at the lower end of the transport arm 15.

  The transfer arm 15 is provided so as to be movable along the guide rail 14 by a driving unit such as a motor (not shown), and is extended and contracted in the vertical direction (the depth direction in FIG. 1) by a separate driving unit such as a cylinder. It is possible. As the transfer arm 15 moves along the guide rail 14, the suction pad 16 also moves along the guide rail 14. Further, the suction pad 16 moves up and down as the transfer arm 15 expands and contracts. The suction pad 16 is connected to a suction means (not shown) and configured to be able to suck air from the lower end surface of the suction pad 16 based on the suction operation of the suction means. In this embodiment, the separator 2 and the electrode foil 6 (the negative electrode foil 1 and the positive electrode foil 3) can be adsorbed by the adsorption pad 16 with this configuration.

  The stacking of the laminate 4 using the manufacturing apparatus 10 will be further described. In stacking, first, the transport arm 15 is guided onto the separator supply stage 11, and the transport arm 15 is extended at that position. At this time, the separator 2 has already been supplied at a predetermined angle to a predetermined position on the separator supply stage 11 by a separator supply means (not shown). Then, suction by the suction pad 16 is started by the suction means. Then, the separator 2 is attracted to the lower surface of the suction pad 16.

  Next, after the transport arm 15 is once contracted from this state, the transport arm 15 is guided onto the electrode foil supply stage 12, and the transport arm 15 is extended at that position. At this time, on the electrode foil supply stage 12, one negative electrode foil 1 has already been supplied at a predetermined angle to a predetermined position by a negative electrode foil supply means described later. Then, the negative electrode foil 1 is adsorbed to the adsorption pad 16 through the separator 2. This is because the separator 2 is made of a porous material, and the negative electrode foil 1 is sucked through fine holes.

  Then, with the separator 2 and the negative electrode foil 1 being sucked by the suction pad 16, the transfer arm 15 is contracted again, and this time it is guided onto the stacking stage 13. Therefore, the transfer arm 15 is extended again and the suction is temporarily stopped. Thereby, adsorption | suction of the separator 2 and the negative electrode foil 1 is cancelled | released, and it is made to mount in the predetermined position of the lamination | stacking stage 13. FIG. At the time of mounting, the separator 2 and the negative electrode foil 1 are pressed by a pressing unit (not shown) so as not to cause positional displacement as much as possible.

  Next, the transfer arm 15 is guided onto the separator supply stage 11 in the same manner as described above, and the transfer arm 15 is extended at that position. At this time, another separator 2 has already been supplied onto the separator supply stage 11. Then, when the suction by the suction pad 16 is resumed by the suction means, the separator 2 is sucked on the lower surface of the suction pad 16.

  Subsequently, after the transport arm 15 is once contracted from the state, the transport arm 15 is guided onto the electrode foil supply stage 12, and the transport arm 15 is extended at that position. At this time, since one positive foil 3 is already supplied onto the electrode foil supply stage 12 by the positive foil supply means described later, the positive foil 3 is adsorbed to the adsorption pad 16 via the separator 2. It is done. Then, with the separator 2 and the positive electrode foil 3 being sucked by the suction pad 16, the transport arm 15 is contracted again and guided onto the lamination stage 13. Thereafter, the transfer arm 15 is extended again and suction is temporarily stopped. Thereby, the adsorption | suction of the separator 2 and the positive electrode foil 3 is cancelled | released, and it mounts on the said separator 2 of the lamination | stacking stage 13. FIG. Also in the mounting, the separator 2 and the positive electrode foil 3 are pressed by a pressing unit (not shown) so as not to cause positional displacement as much as possible.

  By repeating the above operation a predetermined number of times, the negative electrode foil 1, the separator 2, the positive electrode foil 3, and the separator 2 are repeatedly stacked in order from the bottom. Thereby, the laminated body 4 mentioned above is obtained.

  Next, the negative foil supply means and the positive foil supply means for supplying the negative foil 1 and the positive foil 3 one by one onto the electrode foil supply stage 12 will be described. The negative foil 1 and the positive foil 3 are laminated in advance so that the uncoated portions 8 are all located on the same side at different positions. In the example shown in FIG. 1, the electrode foil 6 (the negative electrode foil 1 or the positive electrode foil 3) is laminated on a predetermined pedestal portion 18 so that the uncoated portion 8 faces the left side of the drawing. In this case, the pedestal 18 that is the initial stacking position corresponds to the “first position”, and the electrode foil supply stage 12 corresponds to the “second position”.

  Further, the negative electrode foil supply means and the positive foil supply means described above constitute an electrode foil supply apparatus, and will be referred to as electrode foil supply means 21 hereinafter. The electrode foil supply means 21 includes a guide rail (not shown) as described in the manufacturing apparatus 10. The guide rail connects the pedestal 18 and the electrode foil supply stage 12. As shown in FIG. 1, the transfer arm 22 is supported in a suspended state on the guide rail, and the lower end of the transfer arm 22 is provided with a base via a driving means 25 in which a ball screw 23 and a servo motor 24 are integrated. The member 26 is connected. The transfer arm 22, the base member 26, and the like are integrally provided so as to be movable in the horizontal direction along the guide rail by a separate motor (not shown). In the present embodiment, these motors and guide rails constitute horizontal moving means.

  The base member 26 and the like are moved up and down by the operation of the servo motor 24. In the present embodiment, the servo motor 24 or the like constitutes vertical movement means. On the lower surface of the base member 26, a sheet-like porous suction pad 27 is provided as a coating portion suction means. The porous suction pad 27 has substantially the same shape and area as the coating part 7. A suction hole (not shown) is formed in the base member 26, and one end of a vacuum hose 28 is connected to one end of the suction hole. The other end side of the suction hole is branched into a plurality of holes and communicates with a plurality of locations of the porous suction pad 27. Further, a main vacuum pump (not shown) is connected to the other end of the vacuum hose 28. Then, when the main vacuum pump is turned on, suction from the porous suction pad 27 is performed via the vacuum hose 28 and the suction hole.

  A bracket 31 is erected on the base member 26, and a cylinder 32 is provided as a means for vertically moving the uncoated part via the bracket 31. A rod 33 is provided in a lower portion of the cylinder 32 so as to be able to protrude and retract, and an arm 34 and a cylindrical member 35 are provided at a lower end of the rod 33. A multi-stage bellows suction pad 36 as an uncoated portion suction means is provided at the lower end of the cylindrical member 35. The multi-stage bellows suction pad 36 has flexibility and can be tilted (slightly curved) in the vertical direction (vertical line). One end of a vacuum hose 37 is connected to the upper end of the cylindrical member 35, and a sub vacuum pump (not shown) is connected to the other end of the vacuum hose 37. When the sub vacuum pump is turned on, suction from the multistage bellows suction pad 36 is performed via the vacuum hose 37 and the tubular member 35.

  A bracket 41 is fixed to the end edge of the base member 26 in a suspended state, and an air blow nozzle 42 is provided on the bracket 41. An air blower (not shown) is connected to the air blow nozzle 42, and compressed air from the air blower 42 can be output from the air blow nozzle 42. The air blow nozzle 42 is positioned slightly below the porous suction pad 27 and can be positioned on the side of the uncoated portion 8 of the electrode foil 6 when the electrode foil 6 is sucked. Yes. In the present embodiment, the air blow nozzle 42 and the air blower constitute gas injection means.

  Next, the operation | movement at the time of conveying the electrode foil 6 sheet by sheet using the electrode foil supply means 21 mentioned above is demonstrated.

  First, as shown in FIG. 6A, when the base member 26 and the like are at a predetermined position just above the electrode foil 6, both the main vacuum pump and the sub vacuum pump are turned off, and the air blower is also turned on. It is turned off.

  When the servo motor 24 is operated from this state, the base member 26 and the like are moved downward as shown in FIG. 6B. In this embodiment, the height position of the uppermost layer of the laminated electrode foil 6 (coating portion 7) is set in advance, and the base member 26 and the like are moved downward in accordance with this height position. Thereby, the porous suction pad 27 comes into contact with the coating portion 7. In addition, the cylinder 32 is operated along with the downward movement (may be immediately after the downward movement). Then, as shown in the figure, the rod 33, the arm 34, the cylindrical member 35, and the multi-stage bellows suction pad 36 move downward with respect to the base member 26, and the multi-stage bellows suction pad 36 contacts the uncoated portion 8. It will be.

  Further, at least from the stage where the multi-stage bellows suction pad 36 comes into contact with the uncoated part 8, the sub vacuum pump is turned on. As a result, the uncoated portion 8 of the uppermost electrode foil 6 is adsorbed to the multi-stage bellows adsorption pad 36.

  Then, as shown in FIG. 6C, the cylinder 32 is operated while the suction state is maintained. Then, the rod 33 is immersed in the cylinder 33, and the rod 33, the arm 34, the cylindrical member 35, and the multistage bellows suction pad 36 move upward with respect to the base member 26. As a result, as shown in FIG. 5 (a), the uncoated portion 8 of the uppermost electrode foil 6 (6U) that has been suspended until then is sucked and lifted. And in this embodiment, as shown in FIG.5 (b), the coating part of the uppermost electrode foil 6 (6U) is first lifted preferentially by the uncoated part 8 in which contact | adherence has not occurred. 7 is separated from the edge of the coating portion of the electrode foil 6 (6L) in the immediately lower layer, and as a result, the uppermost electrode foil 6U and the electrode foil 6L in the immediately lower layer are separated from each other. . In the lifting, it is preferable that the edge of the uncoated portion 8 is lifted to a position substantially the same as or slightly higher than the coated portion 7.

  Furthermore, in this embodiment, the air blower is turned on along with the lifting. As a result, as shown in the figure, compressed air is jetted from the air blow nozzle 42 on the side of the uncoated portion 8, and the edge of the coated portion 7 of the uppermost electrode foil 6U is directly It becomes easier to be further separated from the edge of the coating portion 7 of the lower electrode foil 6L.

  In addition, the main vacuum pump is turned on from this stage (after the time when the porous suction pad 27 contacts the coating portion 7). As a result, the coating portion 7 of the uppermost electrode foil 6 </ b> U is attracted to the porous suction pad 27. However, at this time, the base member 26 and the like are still maintained in the downward movement state.

  Next, when the servo motor 24 is operated in the reverse rotation to the previous one, the base member 26 and the like are moved up as shown in FIG. As a result, the uppermost electrode foil 6 is lifted in a state in which the coated portion 7 is sucked by the porous suction pad 27 and the uncoated portion 8 is sucked by the multi-stage bellows suction pad 36. . The jet of compressed air from the air blow nozzle 42 is lifted and continued for a while. As a result, even if the coating portions 7 are in close contact with each other, they are more reliably separated from each other. Moreover, if the electrode foil 6 does not fall only by the suction of the coating part 7, the suction of the uncoated part 8 may be released at this point.

  Then, the motor (not shown) or the like is operated with at least the coating part 7 sucked by the porous suction pad 27, and the base member 26 and the like move in the horizontal direction along with the electrode foil 6 along the guide rail (not shown). Be made. Thereafter, when reaching above the electrode foil supply stage 12, the servo motor 24 is actuated again, and the base member 26 and the like are moved downward. Then, the main vacuum pump (and the sub vacuum pump) is turned off, and the suction of the electrode foil 6 is released. As a result, one electrode foil 6 is supplied onto the electrode foil supply stage 12. After the supply is completed, the servo motor 24 is operated again, the base member 26 and the like are moved up, and further moved to the position of the pedestal 18.

  By repeating this operation, one electrode foil 6 is repeatedly supplied onto the electrode foil supply stage 12. In addition, the said electrode foil supply means 21 is provided corresponding to the negative electrode foil 1 and the positive electrode foil 3, respectively, and is supplied on the electrode foil supply stage 12 by turns in order of the negative electrode foil 1 and the positive electrode foil 3. .

  As described above in detail, according to the present embodiment, the electrode foils 6 stacked on the pedestal portion 18 are stacked such that all the uncoated portions 8 are located on the same side. Since the thickness of the uncoated portion 8 is considerably smaller than the thickness of the coated portion 7, there is a possibility that the coated portions 7 are in close contact with each other in the laminated state of the electrode foil 6. However, a gap is easily formed between the uncoated portions 8 and adhesion is difficult to occur. In view of this point, in the present embodiment, it is first preferentially lifted from the uncoated portion 8 side. More specifically, first, the uncoated portion 8 of the uppermost electrode foil 6 is adsorbed and moved up by the multi-stage bellows adsorbing pad 36. Along with this, the edge of the coating portion 7 of the uppermost electrode foil 6 (6U) is separated from the edge of the coating portion 7 of the electrode foil 6 (6L) immediately below, and then the electrode foil The whole 6 is moved up.

  At this time, while the uncoated portion 8 is lifted, compressed air is jetted from the air blow nozzle 42 on the side of the uncoated portion 8. Thereby, the edge of the coating part 7 of the uppermost electrode foil 6 (6U) is more easily separated from the edge of the coating part 7 of the electrode foil 6 (6L) in the immediately lower layer. In this embodiment, these two operations (suction, lifting and air blow of the uncoated portion 8) are combined, and the edge of the coated portion 7 of the uppermost electrode foil 6 (6U) is directly The lower electrode foil 6 (6L) is separated from the edge of the coating portion 7, and as a result, the uppermost electrode foil 6 (6U) and the immediately lower electrode foil 6 (6L) are separated from each other. For this reason, only the uppermost electrode foil 6 (6U) can be lifted more reliably, and as a result, the problem that a plurality of electrode foils 6 are lifted at once can be prevented more reliably.

  In the present embodiment, the multi-stage bellows suction pad 36 for sucking the uncoated portion 8 can tilt with respect to the vertical direction. As described above, when the uncoated portions 8 are all laminated on the same side, the thickness of the uncoated portion 8 is smaller than the thickness of the coated portion 7, so the uncoated portion 8 is entirely As shown in FIG. In this regard, even if the uncoated portion 8 of the uppermost electrode foil 6 (6U) hangs diagonally, the multi-stage bellows suction pad 36 tilts following the sag, and the uncoated portion 8 Can be more reliably adsorbed. Accordingly, it is possible to more reliably avoid the problem that the uncoated portion 8 is missed.

  Furthermore, in this embodiment, the porous suction pad 27 is provided on the base member 26, and the cylinder 32 and the like are integrated with the base member 26. For this reason, the cylinder 32 and the multistage bellows suction pad 36 can move up and down as the base member 26 moves up and down as the servo motor 32 operates. For this reason, when the uppermost electrode foil 6 (6U) adsorbed by the porous adsorption pad 27 is moved upward, the electrode foil 6 (6U) is not applied without operating the cylinder 32 or the like independently. The working part 8 can be moved together with the upward movement or the like. In this sense, the entire apparatus can be simplified.

  In addition, you may implement as follows, for example, without being limited to the description content of embodiment mentioned above.

  (A) In the above embodiment, the air blower and the air blow nozzle 42 are provided, and the compressed air is jetted from the air blow nozzle 42 on the side of the uncoated portion 8. On the other hand, the air blower and the air blow nozzle 42 may be omitted. That is, the uncoated portion 8 of the uppermost electrode foil 6 (6U) is adsorbed and moved up by the multistage bellows suction pad 36, and the edge of the coated portion 7 of the uppermost electrode foil 6 (6U) is The electrode foil 6 (6L) in the immediately lower layer may be separated from the edge of the coating portion 7 and then the entire electrode foil 6 may be moved upward, and the compressed air may not be sprayed. Even in this case, it is possible to lift only the uppermost electrode foil 6 (6U), and as a result, it is possible to more reliably prevent a problem that a plurality of electrode foils 6 are lifted at a time.

  (B) Contrary to the above (a), a configuration in which the multistage bellows suction pad 36, the cylinder 32, etc. are omitted and an air blower and an air blow nozzle 42 are provided may be adopted. That is, the uncoated portion 8 of the uppermost electrode foil 6 (6U) and the uncoated portion 8 of the immediately lower electrode foil 6 (6L) are not in close contact with each other. First, the uncoated portion 8 of the uppermost electrode foil 6 (6U) is blown up. As a result, the edge of the coating portion 7 of the uppermost electrode foil 6 (6U) is separated from the edge of the coating portion 7 of the immediately lower electrode foil 6 (6L). It is good also as a structure which the motor 24 is operated and the coating part 7 of the uppermost electrode foil 6 (6U) in an adsorption | suction state is moved up by the porous adsorption pad 27. FIG. Even in this case, it is possible to lift only the uppermost electrode foil 6 (6U), and as a result, it is possible to more reliably prevent a problem that a plurality of electrode foils 6 are lifted at a time.

  (C) In the above embodiment, the electrode foil supply means 21 is provided corresponding to each of the negative electrode foil 1 and the positive electrode foil 3, and only the negative electrode foil 1 or only the positive electrode foil 3 is provided on each pedestal portion 18. However, the present invention can be embodied in the case where the negative foil 1 and the positive foil 3 are alternately laminated on one pedestal portion 18.

  (D) In the above-described embodiment, the electrode foil supply stage 12 common to the negative electrode foil 1 and the positive electrode foil 3 is provided. However, the electrode foil supply stage 12 may be provided separately. That is, the negative electrode foil supply stage and the positive electrode foil supply stage may be provided separately.

  (E) In the above-described embodiment, the separator 2 and the negative electrode foil 1 (or the positive foil 3) are transported to the stacking stage 13 at a time with respect to the suction pad 16, but are transported separately. And may be laminated.

  (F) In the above embodiment, each electrode foil 6 and the like is supplied to a predetermined position (electrode foil supply stage 12 and the like) using the electrode foil supply means 21 and the like, and is supplied to each predetermined position (electrode foil supply stage 12 and the like). The case where the supplied electrode foil 6 (1, 3) and the separator 2 are stacked on a stacking stage 13 different from the predetermined position by using a separate manufacturing apparatus 10 is embodied. On the other hand, a plurality of transfer devices (electrode foil supply means 21 etc.) are prepared corresponding to the positive electrode foil 3, the negative electrode foil 1 and the separator 2, and each transfer device (electrode foil supply means 21 etc.) is prepared. The positive foil 3 and the negative foil 1 and the separator 2 may be alternately laminated at a predetermined lamination position (lamination stage 13). In any case, the technical idea related to the electrode foil supply means 21 described in the above embodiment can be embodied as various conveying devices when the positive foil 3 and the negative foil 1 need to be conveyed one by one.

  (G) In the above embodiment, compressed air is jetted from the air blow nozzle 42, but other gas (inert gas such as nitrogen or argon) may be jetted.

  (H) Instead of the guide rail used in the above embodiment, other horizontal moving means such as a chain conveyor may be used.

  DESCRIPTION OF SYMBOLS 1 ... Negative electrode foil, 2 ... Separator, 3 ... Positive electrode foil, 4 ... Laminated body, 10 ... Manufacturing apparatus, 12 ... Electrode foil supply stage (2nd position), 18 ... Base part (1st position), 21 ... Electrode foil Supply means (electrode foil transport means), 24 ... Servo motor (up / down movement means), 27 ... Porous suction pad (coating part suction means), 32 ... Cylinder (uncoated part up / down movement means), 36 ... Multi-stage bellows Adsorption pad (uncoated part adsorption means) 42... Air blow nozzle (gas injection means).

Claims (7)

An electrode foil body made of a metal foil, and an active material coated and formed on both front and back surfaces of the electrode foil body, and a coating portion formed by coating the active material, and extending from an edge of the coating portion An electrode foil for a laminated battery having an uncoated portion formed by exposing the electrode foil main body, from the first position where the uncoated portions are all laminated on the same side, from the first position An electrode foil transport device for transporting one sheet at a time to a second position different from the first position,
A coating portion adsorbing means capable of adsorbing the coating portion of the uppermost electrode foil among the electrode foils laminated in the first position;
A vertical movement means capable of moving at least the coating part adsorption means in the vertical direction;
Horizontal movement means capable of moving at least the coating part adsorption means in a horizontal direction;
Provided separately from the coated part adsorption means, uncoated part adsorption means capable of adsorbing the uncoated part of the uppermost electrode foil,
An uncoated part vertical movement means provided separately from the vertical movement means and capable of moving the uncoated part adsorption means in the vertical direction;
By operating the uncoated part up-and-down moving means, the uncoated part adsorption means adsorbs the uncoated part of the uppermost electrode foil and moves it up, thereby applying the uppermost electrode foil. After the edge of the working part is separated from the edge of the coating part of the electrode foil immediately below it, the uppermost electrode in the suction state by the coating part suction means by operating the vertical movement means An apparatus for transporting an electrode foil, wherein the foil coating part is moved up. An electrode foil body made of a metal foil, and an active material coated and formed on both front and back surfaces of the electrode foil body, and a coating portion formed by coating the active material, and extending from an edge of the coating portion An electrode foil for a laminated battery having an uncoated portion formed by exposing the electrode foil main body, from the first position where the uncoated portions are all laminated on the same side, from the first position An electrode foil transport device for transporting one sheet at a time to a second position different from the first position,
A coating portion adsorbing means capable of adsorbing the coating portion of the uppermost electrode foil among the electrode foils laminated in the first position;
A vertical movement means capable of moving at least the coating part adsorption means in the vertical direction;
Horizontal movement means capable of moving at least the coating part adsorption means in a horizontal direction;
Gas injection means capable of injecting gas from the side of the uncoated part,
By moving the uncoated portion of the uppermost electrode foil with the gas sprayed by the gas spraying means, the edge of the coated portion of the uppermost electrode foil becomes the electrode foil immediately below it. After moving away from the edge of the coating portion, the vertical movement means is operated to move up the coating portion of the uppermost electrode foil that is in the suction state by the coating portion suction means Electrode foil transport device. An electrode foil body made of a metal foil, and an active material coated and formed on both front and back surfaces of the electrode foil body, and a coating portion formed by coating the active material, and extending from an edge of the coating portion An electrode foil for a laminated battery having an uncoated portion formed by exposing the electrode foil main body, from the first position where the uncoated portions are all laminated on the same side, from the first position An electrode foil transport device for transporting one sheet at a time to a second position different from the first position,
A coating portion adsorbing means capable of adsorbing the coating portion of the uppermost electrode foil among the electrode foils laminated in the first position;
A vertical movement means capable of moving at least the coating part adsorption means in the vertical direction;
Horizontal movement means capable of moving at least the coating part adsorption means in a horizontal direction;
Provided separately from the coated part adsorption means, uncoated part adsorption means capable of adsorbing the uncoated part of the uppermost electrode foil,
An uncoated part vertical movement means provided separately from the vertical movement means and capable of moving the uncoated part adsorption means in the vertical direction;
An electrode foil transport apparatus comprising gas injection means capable of injecting gas from a side of the uncoated portion.   The uncoated part up-and-down moving means is operated to adsorb the uncoated part of the uppermost electrode foil by the uncoated part adsorption means, and in a state where the uncoated part is moved up, gas is supplied from the gas injection means. Spraying, the edge of the coating portion of the uppermost electrode foil can be separated from the edge of the coating portion of the electrode foil immediately below it, and the vertical movement means is operated to move the coating portion adsorption means The electrode foil transport device according to claim 3, wherein the coating portion of the uppermost electrode foil in the adsorbed state is moved up.   5. The electrode foil transport device according to claim 1, wherein the uncoated portion suction means includes a suction pad that can tilt with respect to a vertical direction.   The said uncoated part adsorption | suction means and the said uncoated part vertical movement means are provided so that a vertical movement is possible with the vertical movement by the said vertical movement means, It is characterized by the above-mentioned. The electrode foil conveying apparatus as described.   The manufacturing apparatus of a laminated battery provided with the conveying apparatus of the electrode foil of any one of Claims 1 thru | or 6.

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