JP2016164865A - Manufacturing device and manufacturing method for electrode with separator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a manufacturing device and a manufacturing method for an electrode with a separator, capable of improving the position accuracy of the electrode to the separator.SOLUTION: A manufacturing device 20 for an electrode with a separator comprises: a transporting roller 24 which transports separator members 13a and 13b in a transportation direction along a longitudinal direction; a first heater roller 22 which forms a first welding region W1 by mutually welding the separator members 13a and 13b along a short direction; and a supply unit 30 which abuts the positive electrode 11 on the first welding region W1 by moving the positive electrode 11 along the transportation direction at a faster speed than a transportation speed of the separator members 13a and 13b. The supply unit 30 moves the positive electrode 11 supported by a support part along the transportation direction while sliding it to a guide member 40.SELECTED DRAWING: Figure 5

Description

  The present invention relates to a manufacturing apparatus for an electrode with a separator and a method for manufacturing an electrode with a separator.

  Patent Document 1 describes an electrode stacking apparatus that manufactures an electrode stack in which positive and negative electrodes are alternately stacked with separators in between. The electrode stacking device includes a roll pair for welding the first separator sheet and the second separator sheet, and a positive electrode supply device for supplying a positive electrode between the first separator sheet and the second separator sheet. . The roll pair welds the first separator sheet and the second separator sheet to form a welded portion that supports the lower portion of the positive electrode. The positive electrode supply device drops the positive electrode toward the welded portion at the timing when the welded portion is formed.

JP 2012-199210 A

  In the electrode laminating apparatus described in Patent Document 1, the lower part of the positive electrode dropped toward the welded portion is supported by the welded portion, thereby positioning the electrodes in the vertical direction. However, in the electrode stacking apparatus, the positive electrode positioning in a direction other than the vertical direction has not been sufficiently studied, and there is still room for improvement in the positional accuracy of the electrode with respect to the separator.

  Then, an object of this invention is to provide the manufacturing method of the electrode with a separator and the electrode with a separator which can improve the positional accuracy of the electrode with respect to a separator.

  The separator-attached electrode manufacturing apparatus according to the present invention is a separator-attached electrode manufacturing apparatus that manufactures an electrode with a separator by housing the electrode in a bag-like separator, and is a long sheet that constitutes a bag-like separator. A first welding unit that welds the pair of separator members in the transport direction along the longitudinal direction of the separator member and the pair of separator members transported by the transport unit to each other along the short direction of the separator member. A first welding portion that forms a region and a pair of separator members so that the electrode is brought into contact with the first welding region by moving the electrode along the transport direction at a speed greater than the transport speed of the separator member. A supply unit for supplying to the support unit, the supply unit supporting the electrode while being in contact with the electrode, and a support unit extending along the transport direction It has a guide portion provided, and a moving unit that moves along the transport direction while sliding the supported electrode guide portion by the support portion.

  The manufacturing method of an electrode with a separator according to the present invention is a manufacturing method of an electrode with a separator that manufactures an electrode with a separator by housing the electrode in a bag-shaped separator, and is a long sheet that constitutes a bag-shaped separator A conveying step for conveying the pair of separator members in a conveying direction along the longitudinal direction of the separator member, and a pair of separator members conveyed in the conveying step are welded together along the short direction of the separator member to perform first welding A first welding step for forming a region and a pair of separator members so that the electrode is brought into contact with the first welding region by moving the electrode along the transport direction at a speed greater than the transport speed of the separator member. A supply step for supplying the electrode to the electrode, and in the supply step, the electrode is supported by a support portion in contact with the electrode. While, is moved along the conveying direction while sliding on the guide portion extending along the electrodes in the conveyance direction.

  In these manufacturing apparatuses and manufacturing methods, the electrode is moved along the transport direction of the separator member at a speed larger than the transport speed of the separator member, and is supplied between the separator members. For this reason, an electrode is abutted against the 1st welding area | region formed along the transversal direction of the separator member. Therefore, when the electrodes are supplied, the electrodes are positioned with respect to the separator member in the longitudinal direction (conveyance direction) of the separator member with reference to the first welding region. In this manufacturing apparatus and manufacturing method, the electrode is supported while being in contact with the support portion, and is moved in the transport direction while sliding on a guide portion provided along the transport direction, and is supplied between the separator members. The Therefore, when the electrodes are supplied, the electrodes are positioned with respect to the separator member in the short direction of the separator member (the direction intersecting the transport direction) with reference to the guide portion. Thus, according to these manufacturing apparatuses and manufacturing methods, the electrode is positioned with respect to the separator member in a plurality of directions. Therefore, it is possible to improve the positional accuracy of the electrode with respect to the separator.

  In the apparatus for manufacturing an electrode with a separator according to the present invention, the supply unit includes a plurality of rollers that rotate around a rotation axis that intersects the conveyance direction, and the rollers are arranged along the conveyance direction. The outer peripheral surface is provided with a spiral convex portion extending around the roller about the rotation axis, the support portion is constituted by the top surface of the convex portion, and the moving portion is constituted by the roller, By rotating the convex portion with the rotation of the roller, the electrode may be moved along the transport direction while sliding on the guide portion. In this case, the frictional force between the top surface of the rotating spiral convex portion and the electrode can be used to move the electrode along the transport direction while sliding the electrode on the guide portion. That is, positioning can be performed as described above without using a complicated device.

  In the separator-attached electrode manufacturing apparatus according to the present invention, the roller is inclined along a predetermined direction including the vertical component while intersecting the transport direction, and rotates around a rotation axis along the predetermined direction. The part may support the electrode vertically above the guide part. In this case, in addition to the frictional force between the top surface of the rotating spiral convex portion and the electrode, a component along a predetermined direction of gravity applied to the electrode is used to slide the electrode on the guide portion. It can be moved along the transport direction.

  In the separator-attached electrode manufacturing apparatus according to the present invention, the supply section includes a plurality of rollers that intersect the transport direction and are inclined in a predetermined direction including a vertical component and rotated around a rotation axis along the predetermined direction. The rollers are arranged along the conveying direction, the support portion is constituted by the outer peripheral surface of the roller, and the electrode is supported vertically above the guide portion, and the moving portion is constituted by the roller. The electrode may be moved along the transport direction while sliding the electrode on the guide portion by rotating the roller. In this case, using the frictional force between the outer peripheral surface of the rotating roller and the electrode and the component along the predetermined direction of gravity applied to the electrode, the electrode moves along the conveying direction while sliding the electrode on the guide portion. Can be made. That is, positioning can be performed as described above without using a complicated device.

  The separator-attached electrode manufacturing apparatus according to the present invention is a separator-attached electrode manufacturing apparatus that manufactures an electrode with a separator by housing the electrode in a bag-like separator, and is a long sheet that constitutes a bag-like separator. A first welding unit that welds the pair of separator members in the transport direction along the longitudinal direction of the separator member and the pair of separator members transported by the transport unit to each other along the short direction of the separator member. A first welded portion that forms a region and a first welded portion that is disposed in front of the first welded portion and welds one edge in the short direction of a pair of separator members transported in the transport step to form a second welded region The electrode is moved in the first welding region by moving the electrode along the transport direction at a speed greater than the transport speed of the separator member and the second weld portion. A supply section that supplies the separator between the pair of separator members so as to make contact with each other, and the supply section supports the electrode while being in contact with the electrode, and the electrode supported by the support section is second welded. And a moving unit that moves along the transport direction while sliding in the region.

  The manufacturing method of an electrode with a separator according to the present invention is a manufacturing method of an electrode with a separator that manufactures an electrode with a separator by housing the electrode in a bag-shaped separator, and is a long sheet that constitutes a bag-shaped separator A conveying step for conveying the pair of separator members in a conveying direction along the longitudinal direction of the separator member, and a pair of separator members conveyed in the conveying step are welded together along the short direction of the separator member to perform first welding A first welding step for forming a region, and a first welding step for forming a second welding region by welding one edge portion in a short direction of a pair of separator members conveyed by the conveying unit to each other before the first welding step. By moving the electrodes along the transport direction at a speed greater than the transport speed of the two welding steps and the separator member And a supply step of supplying the electrode between the pair of separator members so as to contact the first welding region. In the supply step, the electrode is supported by the support portion that contacts the electrode, and the electrode is It is moved along the conveying direction while sliding in the welding area.

  In these manufacturing apparatuses and manufacturing methods, the electrode is moved along the transport direction of the separator member at a speed larger than the transport speed of the separator member, and is supplied between the separator members. For this reason, an electrode is abutted against the 1st welding area | region formed along the transversal direction of the separator member. Therefore, when the electrodes are supplied, the electrodes are positioned with respect to the separator member in the longitudinal direction (conveyance direction) of the separator member with reference to the first welding region. Further, in this manufacturing apparatus and manufacturing method, the electrode is supported while being in contact with the support portion, and in the transport direction while sliding on the second welding region provided at the edge in the short direction of the separator member. It is moved and supplied between the separator members. Therefore, when the electrode is supplied, the electrode is positioned with respect to the separator member in the short direction of the separator member (direction intersecting the transport direction) with reference to the second welding region. Thus, according to these manufacturing apparatuses and manufacturing methods, the electrode is positioned with respect to the separator member in a plurality of directions. Therefore, it is possible to improve the positional accuracy of the electrode with respect to the separator.

  The separator-attached electrode manufacturing apparatus according to the present invention is a separator-attached electrode manufacturing apparatus that manufactures an electrode with a separator by housing the electrode in a bag-like separator, and is a long sheet that constitutes a bag-like separator. A first welding unit that welds the pair of separator members in the transport direction along the longitudinal direction of the separator member and the pair of separator members transported by the transport unit to each other along the short direction of the separator member. A first welding portion that forms a region and a pair of separator members so that the electrode is brought into contact with the first welding region by moving the electrode along the transport direction at a speed greater than the transport speed of the separator member. A supply portion that is provided in parallel to the support portion so as to support the electrode while being in contact with the electrode, and to be along the transport direction. A guide unit, and a moving unit that moves the electrode supported by the support unit along the transport direction while contacting the guide unit, and the contact portion of the guide unit with the electrode depends on the speed of movement of the electrode It can be moved at a certain speed.

  The manufacturing method of an electrode with a separator according to the present invention is a manufacturing method of an electrode with a separator that manufactures an electrode with a separator by housing the electrode in a bag-shaped separator, and is a long sheet that constitutes a bag-shaped separator A conveying step for conveying the pair of separator members in a conveying direction along the longitudinal direction of the separator member, and a pair of separator members conveyed in the conveying step are welded together along the short direction of the separator member to perform first welding A first welding step for forming a region and a pair of separator members so that the electrode is brought into contact with the first welding region by moving the electrode along the transport direction at a speed greater than the transport speed of the separator member. A supply step for supplying the electrode to the electrode, and in the supply step, the electrode is supported by a support portion in contact with the electrode. While, the electrodes are moved along a transport direction while contacting the guide portion extending along the conveying direction, the contact portion between the electrodes in the guide section moves at a speed corresponding to the speed of movement of the electrode.

  In these manufacturing apparatuses and manufacturing methods, the electrode is moved along the transport direction of the separator member at a speed larger than the transport speed of the separator member, and is supplied between the separator members. For this reason, an electrode is abutted against the 1st welding area | region formed along the transversal direction of the separator member. Therefore, when the electrodes are supplied, the electrodes are positioned with respect to the separator member in the longitudinal direction (conveyance direction) of the separator member with reference to the first welding region. In this manufacturing apparatus and manufacturing method, the electrode is supported while being in contact with the support portion, and is moved in the transport direction while being in contact with the guide portion provided along the transport direction, and is supplied between the separator members. Is done. Therefore, when the electrodes are supplied, the electrodes are positioned with respect to the separator member in the short direction of the separator member (the direction intersecting the transport direction) with reference to the guide portion. Thus, according to these manufacturing apparatuses and manufacturing methods, the electrode is positioned with respect to the separator member in a plurality of directions. Therefore, it is possible to improve the positional accuracy of the electrode with respect to the separator. In particular, in these manufacturing apparatuses and manufacturing methods, the portion of the guide that contacts the electrode is movable (moves) at a speed corresponding to the moving speed of the electrode. For this reason, it is suppressed that an electrode rubs against a guide part and damages (for example, powder fall).

  In the separator-equipped electrode manufacturing apparatus according to the present invention, the supply unit includes a plurality of rollers that rotate around the rotation shaft, the rollers are arranged along the conveyance direction, and the support unit The rotating shaft is composed of an outer peripheral surface, and the rotating shaft is inclined so that a force is applied in the direction toward the guide portion with respect to the electrode on the outer peripheral surface when the roller rotates around the rotating shaft. The electrode may be moved along the transport direction while contacting the guide portion by rotating a roller. In this case, using the frictional force between the outer peripheral surface of the roller and the electrode, the electrode can be moved along the conveying direction while contacting the guide portion. That is, positioning can be performed as described above without using a complicated device.

  In the separator-equipped electrode manufacturing apparatus according to the present invention, the guide unit includes: a belt that contacts the electrode; and a drive unit that moves the contact portion at a speed corresponding to the speed of movement of the electrode by driving the belt. Can have. In this case, for example, the area of the contact portion can be increased as compared with the case where the guide portion is constituted by a plurality of rollers or the like. For this reason, the reaction force from the guide part to the electrode is dispersed, and damage to the electrode can be suppressed.

  In the separator-equipped electrode manufacturing apparatus according to the present invention, the guide portion may overlap the support portion when viewed from the direction intersecting the transport direction. In this case, the electrode can be prevented from coming out from between the support portion and the guide portion.

  The separator-attached electrode manufacturing apparatus according to the present invention is a separator-attached electrode manufacturing apparatus that manufactures an electrode with a separator by housing the electrode in a bag-like separator, and is a long sheet that constitutes a bag-like separator. A first welding unit that welds the pair of separator members in the transport direction along the longitudinal direction of the separator member and the pair of separator members transported by the transport unit to each other along the short direction of the separator member. A pair of the first welded portion forming the region and the electrode are moved along the transport direction at a speed matching the transport speed of the separator member so that the end of the electrode is along the end of the first welded region. A supply unit that supplies the separator between the support member, the support unit that supports the electrode while being in contact with the electrode, and a support unit that extends along the transport direction. It has a guide portion provided, and a moving unit that moves along the transport direction while sliding the supported electrode guide portion by the support portion.

  In this manufacturing apparatus, the electrode is moved along the transport direction of the separator member at a speed that matches the transport speed of the separator member, and is supplied between the separator members. At this time, the edge part of an electrode is made to follow the 1st welding area | region formed along the transversal direction of a separator member. Therefore, when the electrodes are supplied, the electrodes are positioned with respect to the separator member in the longitudinal direction (conveying direction) of the separator member. In this manufacturing apparatus, the electrode is supported while being in contact with the support portion, is moved in the transport direction while sliding on a guide portion provided along the transport direction, and is supplied between the separator members. Therefore, when the electrodes are supplied, the electrodes are positioned with respect to the separator member in the short direction of the separator member (the direction intersecting the transport direction) with reference to the guide portion. Thus, according to this manufacturing apparatus, the electrode is positioned with respect to the separator member in a plurality of directions. Therefore, it is possible to improve the positional accuracy of the electrode with respect to the separator.

  ADVANTAGE OF THE INVENTION According to this invention, the manufacturing apparatus of the electrode with a separator and the manufacturing method of an electrode with a separator which can improve the positional accuracy of the electrode with respect to a separator can be provided.

It is sectional drawing of an electrical storage apparatus provided with the positive electrode with a separator. It is sectional drawing along the II-II line of FIG. It is a figure which shows the positive electrode with a separator typically. It is the schematic which shows the manufacturing apparatus which concerns on 1st Embodiment. It is a figure which shows the supply part shown by FIG. In particular, (b) is a partial sectional view taken along line Vb-Vb in (a). It is a figure which shows a mode that a positive electrode is supplied. It is a figure which shows a modification. It is the schematic which shows the manufacturing apparatus which concerns on 2nd Embodiment. It is a figure which shows the supply part shown by FIG. It is a figure which shows a mode that a positive electrode is supplied. It is a figure which shows the modification of a supply part.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In the drawings, the same elements are denoted by the same reference numerals, and redundant description is omitted.

  FIG. 1 is a cross-sectional view of a power storage device including a positive electrode with a separator. FIG. 2 is a cross-sectional view taken along the line II-II in FIG. The power storage device 1 shown in FIGS. 1 and 2 is configured as an in-vehicle non-aqueous electrolyte secondary battery such as a lithium ion secondary battery.

  The power storage device 1 includes a hollow case 2 having a substantially rectangular parallelepiped shape, for example, and an electrode assembly 3 accommodated in the case 2. The case 2 is made of a metal such as aluminum. On the inner wall surface of the case 2, an insulating film (not shown) is provided. For example, a non-aqueous organic solvent-based electrolyte is injected into the case 2. In the electrode assembly 3, the positive electrode active material layer 15 of the positive electrode 11, the negative electrode active material layer 18 of the negative electrode 12, and the separator 13 described later are porous, and the pores are impregnated with the electrolytic solution. . On the upper surface of the case 2, the positive terminal 5 and the negative terminal 6 are disposed so as to be separated from each other. The positive electrode terminal 5 is fixed to the case 2 via an insulating ring 7, and the negative electrode terminal 6 is fixed to the case 2 via an insulating ring 8.

  The electrode assembly 3 includes a positive electrode (electrode) 11, a negative electrode 12, and a bag-like separator 13 disposed between the positive electrode 11 and the negative electrode 12. For example, the positive electrode 11 is accommodated in the separator 13. With the positive electrode 11 housed in the separator 13, the positive electrode 11 and the negative electrode 12 are alternately stacked via the separator 13. That is, the electrode assembly 3 has a positive electrode with a separator 10 (electrode with separator) configured by housing the positive electrode 11 in a bag-shaped separator 13.

  From the viewpoint of improving the space efficiency and increasing the volume of the electrode assembly 3 occupying the space in the case 2, as an example, the electrode assembly 3 is connected to the lower ends of the positive electrode with separator 10 and the negative electrode 12 (positive electrode terminal 5 And the end on the side opposite to the negative electrode terminal 6) can be accommodated in the case 2 so as to be in contact with the bottom surface of the case 2. An insulating member (not shown) is disposed on the inner surface of the case 2. Therefore, in this case, the lower ends of the positive electrode 10 with a separator and the negative electrode 12 are in contact with the bottom surface of the case 2 via an insulating member. However, a minute gap may be formed between the lower ends of the positive electrode with separator 10 and the negative electrode 12 and the bottom surface of the case 2 other than the space occupied by the insulating member.

  FIG. 3 is a diagram schematically showing a positive electrode with a separator. As shown in FIGS. 1 to 3, the positive electrode 11 includes a metal foil 14 made of, for example, an aluminum foil, and a positive electrode active material layer 15 formed on both surfaces of the metal foil 14. The metal foil 14 of the positive electrode 11 has a main body portion 14a and a tab 14b. The main body portion 14a has a rectangular shape. The main body portion 14a includes a lower end portion 14x, an upper end portion 14y opposite to the lower end portion 14x, and a pair of side end portions 14r and 14p that connect the lower end portion 14x and the upper end portion 14y to each other. The side end portions 14r and 14p intersect the lower end portion 14x and the upper end portion 14y. The tab 14 b protrudes from the upper end portion 14 y of the main body portion 14 a so as to correspond to the position of the positive electrode terminal 5. The tab 14b has a rectangular shape.

  The positive electrode active material layer 15 is a porous layer formed including a positive electrode active material and a binder. The positive electrode active material layer 15 is formed by supporting a positive electrode active material on at least a central portion between the lower end portion 14x and the upper end portion 14y on both surfaces of the main body portion 14a. Examples of the positive electrode active material include composite oxide, metallic lithium, and sulfur. The composite oxide includes, for example, at least one of manganese, nickel, cobalt, and aluminum and lithium. As an example, the positive electrode active material is not supported on the tab 14b here. However, an active material may be carried on the base end portion on the main body portion 14a side of the tab 14b. The tab 14 b extends upward from the upper end portion 14 y of the main body portion 14 a and is connected to the positive electrode terminal 5 via the conductive member 16.

  The negative electrode 12 includes a metal foil 17 made of, for example, copper foil, and a negative electrode active material layer 18 formed on both surfaces of the metal foil 17. The metal foil 17 of the negative electrode 12 has a main body portion 17a and a tab 17b. The main body portion 17a has a rectangular shape. The main body 17a includes a lower end, an upper end opposite to the lower end, and a pair of side ends that connect the lower end and the upper end to each other. The tab 17b protrudes from one end of the main body 17a so as to correspond to the position of the negative electrode terminal 6. The tab 17b has a rectangular shape.

  The negative electrode active material layer 18 is formed by supporting a negative electrode active material on at least a central portion between the lower end portion and the upper end portion on both surfaces of the main body portion 17a. The negative electrode active material layer 18 is a porous layer formed including a negative electrode active material and a binder. Examples of the negative electrode active material include carbon such as graphite, highly oriented graphite, mesocarbon microbeads, hard carbon, and soft carbon, alkali metals such as lithium and sodium, metal compounds, SiOx (0.5 ≦ x ≦ 1.5 ) And the like, and boron-added carbon. As an example, the negative electrode active material is not supported on the tab 17b here. However, an active material may be carried on the base end portion on the main body portion 17a side of the tab 17b. The tab 17 b extends upward from the upper end portion of the main body portion 17 a and is connected to the negative electrode terminal 6 through the conductive member 19.

  As an example, the separator 13 accommodates the positive electrode 11 therein. The separator 13 has a rectangular shape when viewed from the stacking direction of the positive electrode 11 and the negative electrode 12. The separator 13 is formed in a bag shape by welding a pair of long sheet-like separator portions to each other. Specifically, the separator 13 is a bag whose outer edge is defined by a first welding region W1, a second welding region W2, a third welding region W3, and a fourth welding region W4 formed by welding the separator portions to each other. Is. In addition, in FIG. 3, the 1st welding area | region W1-the 4th welding area | region W4 are shaded for description.

  The first welding region W1 is a region that faces the side end portion 14r of the main body portion 14a and extends along the side end portion 14r. The third welding region W3 is a region that faces the side end portion 14p of the main body portion 14a and extends along the side end portion 14p. The second welding region W2 is a region that faces the lower end portion 14x of the main body portion 14a and extends along the lower end portion 14x. The fourth welding region W4 is a region that faces the upper end portion 14y of the main body portion 14a and extends along the upper end portion 14y. The first welding region W1 to the fourth welding region W4 are connected to each other so as to form a rectangular ring shape. A non-welding region W5 is interposed in the fourth welding region W4.

  That is, the separator 13 is not closed in the non-welding region W5. In the separator 13, the tab 14b is protruded through the non-welding region W5. Examples of the material for forming the separator 13 include a porous film made of a polyolefin resin such as polyethylene (PE) and polypropylene (PP), a woven fabric or a non-woven fabric made of polypropylene, polyethylene terephthalate (PET), methylcellulose and the like. In addition, the 1st welding area | region W1-the 4th welding area | region W4 may be intermittently formed in the range in which the shift | offset | difference of the positive electrode 11 does not arise in the separator 13. FIG.

  Then, the main processes of the manufacturing method of the electrical storage apparatus 1 are demonstrated. First, a kneading step is performed. In the kneading step, active material particles, which are the main components of the active material layer, and particles such as a binder and a conductive auxiliary agent are kneaded in a solvent in a kneader to produce an electrode mixture having good dispersibility of each particle. . The binder may be a thermoplastic resin such as polyamideimide or polyimide, or may be a polymer resin having an imide bond in the main chain. The solvent may be an organic solvent such as NMP (N-methylpyrrolidone), methanol, methyl isobutyl ketone, or water. The conductive assistant is, for example, a carbon-based material such as acetylene black, carbon black, or graphite.

  Next, a coating process is implemented. In the coating process, a strip-shaped metal foil wound in a roll shape is fed out, and an electrode mixture is intermittently or continuously applied to the surface of the metal foil. The metal foil coated with the electrode mixture passes through the drying furnace immediately after the application of the electrode mixture. Thereby, the solvent contained in the electrode mixture is dried and removed, and a binder made of resin bonds the active material particles to each other. Thereby, an active material layer having fine gaps (holes) between the active material particles is formed.

  Next, a pressing process is performed. In the pressing step, the active material layer formed on the surface of the strip-shaped metal foil is pressed with a roll at a predetermined pressure. Thereby, the active material layer is compressed, and the density of the active material is increased to an appropriate value. Next, an appearance inspection process is performed. In the appearance inspection process, the surface state of the active material layer is confirmed with a camera or the like, and a non-defective product and a defective product are determined.

  Next, a vacuum drying step is performed. Here, the strip-shaped metal foil on which the active material layer is formed is accommodated in a vacuum drying furnace and dried by increasing the temperature under reduced pressure. Thereby, a slight solvent remaining in the active material layer is removed. Next, a punching process is performed. In the punching process, the positive electrode 11 and the negative electrode 12 are formed by punching the metal foil on which the active material layer is formed into a predetermined shape using a punching machine.

  Next, an electrode housing step is performed. In the electrode housing step, the positive electrode 10 with a separator is manufactured by housing the positive electrode 11 in the separator 13 while forming the rectangular bag-shaped separator 13 from the pair of long sheet-shaped separator portions. At this time, the positive electrode 11 is positioned with respect to the separator 13 (details will be described later).

  Next, a lamination process is performed. In the laminating step, the separator-attached positive electrodes 10 and negative electrodes 12 are alternately laminated sequentially. Next, an assembly process is performed. In the assembly process, the stacked body in which the positive electrode 11 and the negative electrode 12 are stacked via the separator 13 is integrated, and the tab 14b of the positive electrode 11 and the tab 17b of the negative electrode 12 are welded respectively. Thereby, the electrode assembly 3 is obtained. Then, the conductive member 16 and the conductive member 19 are welded to the tab 14b of the positive electrode 11 and the tab 17b of the negative electrode 12, respectively.

  Note that the separator-attached positive electrode 10 and the negative electrode 12 have substantially the same shape and size. That is, the width and height of the negative electrode 12 and the width and height of the positive electrode with separator 10 are substantially equal to each other. Therefore, the width and height of the main body portion 14 a of the positive electrode 11 are slightly smaller than the width and height of the main body portion 17 a of the negative electrode 12.

  Subsequently, with reference to FIGS. 4 to 6, the first embodiment of the electrode-separated manufacturing apparatus and the electrode housing step will be described in detail. A rectangular coordinate system S is shown in FIGS. In the orthogonal coordinate system S, the X direction and the Y direction indicate the horizontal direction, and the Z direction indicates the vertical direction. Here, the electrode housing step is a method for producing an electrode with a separator for producing a positive electrode with a separator (electrode with separator) 10 by housing the positive electrode (electrode) 11 in a bag-shaped separator 13. This manufacturing method is performed by the manufacturing apparatus 20. That is, the manufacturing apparatus 20 is an electrode manufacturing apparatus with a separator that manufactures the positive electrode with a separator 10 by housing the positive electrode 11 in a bag-shaped separator 13.

  First, the outline of the manufacturing apparatus 20 will be described. The manufacturing apparatus 20 includes a pair of guide rollers 21 facing each other, a first heater roller (first welding portion) 22, a second heater roller 23, a pair of transport rollers (transport portions) 24 facing each other, and a cutting portion 25. And a supply unit 30. The supply part 30, the guide roller 21, the 1st heater roller 22, the 2nd heater roller 23, the conveyance roller 24, and the cutting | disconnection part 25 are arranged in order along the X direction. Further, the rotation shafts of the guide roller 21, the first heater roller 22, the second heater roller 23, and the transport roller 24 are along the Y direction.

  Here, a pair of long sheet-like separator members 13a and 13b constituting the bag-like separator 13 (which is the basis of the separator 13) are prepared. Separator members 13a and 13b are each fed from a raw roll (not shown) and conveyed along the longitudinal direction thereof by conveying roller 24. At that time, the separator members 13a and 13b are guided by the guide roller 21 and are conveyed substantially parallel to each other along the X direction. Accordingly, here, the conveying direction of the separator members 13a and 13b is along the horizontal direction. In this case, the longitudinal direction of the separator members 13a and 13b is along the X direction, the short side direction is along the Y direction, and the thickness direction is along the Z direction. That is, the separator members 13a and 13b are along the horizontal plane at least at the rear stage of the guide roller 21.

  Subsequently, details of each part of the manufacturing apparatus 20 will be described. The transport roller 24 has a cylindrical shape and is disposed between the second heater roller 23 and the cutting portion 25. As described above, the transport roller 24 transports the pair of separator members 13a and 13b in the transport direction along the longitudinal direction. More specifically, the transport roller 24 transports the separator members 13a and 13b in the transport direction by rotating in the arrow direction while sandwiching the separator members 13a and 13b by a drive source (not shown).

  The first heater roller 22 is disposed between the guide roller 21 and the second heater roller 23. The first heater roller 22 includes a pair of cylindrical rollers 22a and 22b facing each other. The rollers 22 a and 22 b rotate as the separator members 13 a and 13 b are conveyed by the conveyance roller 24. However, the rollers 22 a and 22 b may be rotationally driven by a drive source independent of the transport roller 24. In this case, the rotational speeds of the rollers 22a and 22b are basically matched to the transport speed of the separator members 13a and 13b by the transport roller 24. In this case, the welding position can be adjusted by controlling the rotation speed of the rollers 22a and 22b.

  The first heater roller 22 welds the separator members 13a and 13b conveyed by the conveying roller 24 to each other along the short direction of the separator members 13a and 13b. Thereby, the 1st heater roller 22 forms the 1st welding field W1 and the 3rd welding field W3 which extend in the transversal direction of separator members 13a and 13b.

  The 1st welding area | region W1 and the 3rd welding area | region W3 can be formed as follows as an example. That is, for example, a protrusion extending in the rotation axis direction is provided on the roller 22a. A heater is provided inside the roller 22a. Then, the rollers 22a and 22b are rotated in the direction of the arrow while the separator members 13a and 13b are sandwiched between the top surface of the convex portion of the roller 22a heated by the heater and the outer peripheral surface of the roller 22b. Thereby, the separator member 13a and the separator member 13b are welded at intervals according to the length of the outer periphery of the roller 22a. Note that a heater may also be provided inside the roller 22b to heat both the roller 22a and the roller 22b.

  Thereby, the some 1st welding area | region W1 and the 3rd welding area | region W3 which were mutually spaced apart and arranged in the longitudinal direction of separator member 13a, 13b are formed. Here, for the sake of convenience, when a specific positive electrode 11 is supplied to the separator members 13a and 13b as described later, the welding region located on the side end portion 14r side of the specific positive electrode 11 is designated as a first region. The first welding region W1 is referred to as a welding region located on the side end portion 14p side and is referred to as a third welding region W3. Therefore, here, the first welding region W1 and the third welding region W3 are the same, and the names are changed according to the positional relationship with the positive electrode 11 of interest.

  The supply unit 30 supplies the positive electrode 11 to the separator members 13 a and 13 b being conveyed by the conveyance roller 24. More specifically, the supply unit 30 moves the positive electrode 11 along the transport direction at a speed larger than the transport speed of the separator members 13a and 13b, thereby bringing the positive electrode 11 into contact with the first welding region W1. Is supplied between the pair of separator members 13a and 13b. Details of the supply unit 30 will be described later.

  The second heater roller 23 is disposed between the first heater roller 22 and the transport roller 24. The second heater roller 23 includes a pair of cylindrical rollers 23a and 23b facing each other. The rollers 23 a and 23 b rotate as the separator members 13 a and 13 b are transported by the transport roller 24. However, the rollers 23 a and 23 b may be rotationally driven by a drive source independent of the transport roller 24.

  The second heater roller 23 forms the second welding region W2 by welding the separator members 13a and 13b conveyed by the conveying roller 24 to each other at one edge E2 in the short direction. The second heater roller 23 forms the fourth welding region W4 by welding the separator members 13a and 13b conveyed by the conveying roller 24 to each other at the other edge E4 in the short direction. The second welding region W2 and the fourth welding region W4 extend along the longitudinal direction of the separator members 13a and 13b. The 2nd welding area | region W2 and the 4th welding area | region W4 can be formed as follows as an example.

  That is, for example, a first protrusion that extends along the circumferential direction of the roller 23a is provided for the roller 23a. This 1st convex part is extended over the whole circumferential direction of the roller 23a, and becomes an annular | circular shape. That is, the start end and the end of the first convex portion coincide with each other. On the other hand, the 2nd convex part extended along the circumferential direction of the roller 23a is provided with respect to the roller 23a. The second convex portion is separated from the first convex portion along the rotation axis of the roller 23a and is substantially parallel to the first convex portion. Moreover, this 2nd convex part does not cover the whole circumferential direction of the roller 23a. That is, the start end and the end of the second convex portion do not coincide with each other, and a missing portion is provided between them. Further, a heater is provided inside the roller 23a. The rollers 23a and 23b are rotated in the direction of the arrow while the separator members 13a and 13b are sandwiched between the top surfaces of the first and second convex portions of the roller 23a heated by the heater and the outer peripheral surface of the roller 23b. Let

  Thereby, the separator member 13a and the separator member 13b are welded at the edge portions E2 and E4, and the second welding region W2 and the fourth welding region W4 are formed. Moreover, the separator member 13a and the separator member 13b are not welded at the missing portion of the second convex portion, and a non-welded region W5 is formed. The tab 14b of the positive electrode 11 is projected from the non-welded region W5. That is, the missing portion of the second convex portion is set so as to form the non-welded region W5 at a position corresponding to the tab 14b of the positive electrode 11. A heater may also be provided inside the roller 23b to heat both the roller 23a and the roller 23b.

  The cutting part 25 is disposed at the rear stage of the transport roller 24 in the transport direction of the separator members 13a and 13b. The cutting part 25 includes a fixed blade 25a and a rotary blade 25b. The cutting unit 25 cuts the separator members 13a and 13b transported by the transport roller 24 so as to be sandwiched between the fixed blade 25a and the rotary blade 25b. The cutting part 25 cuts the separator members 13a and 13b in each of the first welding region W1 and the third welding region W3. Thereby, the positive electrode 10 with a separator separated into pieces is obtained. Note that the cutting unit 25 is not limited to one using a fixed blade and a rotary blade. For example, the cutting unit 25 may use a rotary cutter that uses a pair of rotary blades that rotate around the upper and lower axes, or a fusing by heat.

  The supply unit 30 will be described in detail. The supply unit 30 includes a plurality of rollers 31 and a guide member (guide unit) 40. The rollers 31 are arranged along the conveying direction of the separator members 13a and 13b. The roller 31 has a cylindrical shape, and is held horizontally as an example. The roller 31 intersects with the conveyance direction (here, orthogonal) and rotates around a rotation axis along the horizontal direction. A convex portion 33 is provided on the outer peripheral surface 32 of the roller 31 (see particularly FIG. 5).

  The convex portion 33 has a spiral shape extending around the roller 31 around the rotation axis of the roller 31. In the supply unit 30, the positive electrode 11 is supported on the top surface 33 s of the convex portion 33. In other words, the top surface 33 s of the convex portion 33 is a support portion that supports the positive electrode 11 while being in contact with the positive electrode 11. The guide member 40 extends along the conveying direction of the separator members 13a and 13b, and is provided on the roller 31 (particularly on the top surface 33s of the convex portion 33) so as to be spanned by the plurality of rollers 31. Yes. And the convex part 33 inclines so that it may approach the guide member 40 as it goes to a conveyance direction, when it sees from the perpendicular | vertical upper direction so that the conveyance direction and transversal direction of separator member 13a, 13b may be crossed.

  The supply unit 30 configured as described above supplies the positive electrode 11 between the separator members 13a and 13b as follows. That is, the supply unit 30 rotates the roller 31 in a state where the positive electrode 11 is supported by the top surface 33 s of the convex portion 33 (the positive electrode 11 is placed on the rotating roller 31). Thereby, the positive electrode 11 is moved by the frictional force between the top surface 33 s of the convex portion 33 that rotates as the roller 31 rotates. At this time, the positive electrode 11 is moved in the arrow direction D in the drawing toward the transport direction and the short direction (direction toward the guide member 40) of the separator members 13a and 13b according to the spiral shape of the convex portion 33. . For this reason, the positive electrode 11 is moved in the conveying direction of the separator members 13 a and 13 b while sliding on the guide member 40. That is, the roller 31 is a moving unit that moves the positive electrode 11 along the conveying direction while sliding the positive electrode 11 on the guide member 40 by rotating the convex portion 33 with the rotation of the roller 31.

  The supply unit 30 sets the rotation speed of the roller 31 so that the moving speed of the positive electrode 11 along the conveying direction of the separator members 13a and 13b is larger than the moving speed of the separator members 13a and 13b. That is, the supply unit 30 moves the positive electrode 11 along the transport direction at a speed larger than the transport speed of the separator members 13a and 13b. Thus, the supply unit 30 supplies the positive electrode 11 between the separator members 13a and 13b so that the positive electrode 11 is brought into contact with the first welding region W1.

  The description will be continued for an example of the electrode housing step (the method for manufacturing the electrode with a separator) according to the first embodiment. In this manufacturing method, first, the separator rollers 13a and 13b are transported by the transport roller 24 in the transport direction (X direction) along the longitudinal direction of the separator members 13a and 13b (transport step). At this time, the separator members 13a and 13b are along a horizontal plane.

  Subsequently, the first heater roller 22 welds the separator members 13a and 13b transported in the transport step to each other along the short direction of the separator members 13a and 13b, and the first welding region W1 (third welding region W3). ) (First welding step).

  Subsequently, the positive electrode 11 is brought into contact with the first welding region W1 by moving the positive electrode 11 in the conveying direction of the separator members 13a and 13b by the supply unit 30 at a speed higher than the conveying speed of the separator members 13a and 13b. Then, the separator member 13a is supplied between the separator members 13a and 13b (supply step). At this time, in a state where the positive electrode 11 is in contact with and supported by the top surface 33 s of the convex portion 33 of the roller 31, the positive electrode 11 slides on the guide member 40 by the rotation of the convex portion 33 accompanying the rotation of the roller 31. Moved.

  For this reason, the positive electrode 11 is positioned on the basis of the guide member 40 in the short direction of the separator members 13a and 13b by abutment between the lower end portion 14x and the guide member 40 (see FIG. 6A). Furthermore, the positive electrode 11 is positioned with reference to the first welding region W1 in the longitudinal direction of the separator members 13a and 13b by abutment between the side end portion 14r and the first welding region W1 ((b) of FIG. 6). reference).

  Subsequently, the separator members 13a and 13b conveyed in the conveying step are welded to each other at the edges E2 and E4 in the short direction of the separator members 13a and 13b by the second heater roller 23, and the second welding region W2 and the second welding region W2 Four welding regions W4 are formed. Thereby, the separator 13 is formed with respect to the continuous separator members 13 a and 13 b, and the separator-attached positive electrode 10 in which the positive electrode 11 is accommodated in the separator 13 is configured.

  And by the cutting part 25, the separator members 13a and 13b conveyed in the conveyance step are cut in the first welding region W1 and the third welding region W3. Thereby, the separated positive electrode 10 with a separator is manufactured (cut out).

  As described above, in the manufacturing apparatus 20 and the manufacturing method (electrode housing step) according to the present embodiment, the positive electrode 11 is transported in the separator members 13a and 13b at a speed higher than the transport speed of the separator members 13a and 13b. And is supplied between the separator members 13a and 13b. For this reason, the positive electrode 11 is abutted against the first welding region W1 formed along the short direction of the separator members 13a and 13b. Therefore, when the positive electrode 11 is supplied, the positive electrode 11 is positioned with respect to the separator members 13a and 13b in the longitudinal direction (conveying direction) of the separator members 13a and 13b with reference to the first welding region W1.

  Further, in the manufacturing apparatus 20 and the manufacturing method according to the present embodiment, the positive electrode 11 is supported while being in contact with the top surface 33 s of the convex portion 33 of the roller 31 and is provided along the transport direction. Is moved in the conveying direction while being slid, and is supplied between the separator members 13a and 13b. Therefore, when the positive electrode 11 is supplied, the positive electrode 11 is positioned with respect to the separator members 13a and 13b in the short direction of the separator members 13a and 13b (direction intersecting the transport direction) with the guide member 40 as a reference. Thus, according to the manufacturing apparatus 20 and the manufacturing method according to the present embodiment, the positive electrode 11 is positioned with respect to the separator members 13a and 13b in a plurality of directions. Therefore, the positional accuracy of the positive electrode 11 with respect to the separator 13 can be improved.

  In general, when the positional accuracy of the positive electrode 11 with respect to the separator 13 is low, the positive electrode 11 is set sufficiently small with respect to the internal space of the separator 13 defined by the first welding region W1 to the fourth welding region W4. There is a need to. This is because even if the positional deviation of the positive electrode 11 with respect to the separator 13 is large, the first welding region W1 to the fourth welding region W4 and the positive electrode 11 are prevented from interfering with each other, and the positive electrode 11 is reliably attached to the separator 13. It is for accommodating.

  In this regard, according to the manufacturing apparatus 20 and the manufacturing method according to the present embodiment, since the positional accuracy of the positive electrode 11 with respect to the separator 13 is improved, an increase in the positional deviation of the positive electrode 11 with respect to the separator 13 is suppressed. For this reason, it is not necessary to consider the above circumstances, and the positive electrode 11 can be set relatively large. Therefore, the capacity of the power storage device 1 can be improved. Even when the positive electrode 11 is formed relatively large, the positive electrode 11 is reliably accommodated inside the separator 13, so that the positive electrode 11 is reliably insulated and safety is ensured.

  Moreover, in the manufacturing apparatus 20 which concerns on this embodiment, the supply part 30 has the some roller 31 rotated around the rotating shaft which cross | intersects a conveyance direction. The rollers 31 are arranged along the conveying direction, and a spiral convex portion 33 is provided on the outer peripheral surface 32 of the roller 31 so as to extend around the roller 31 around the rotation axis. The supply unit 30 causes the positive electrode 11 to slide on the guide member 40 by rotating the convex portion 33 as the roller 31 rotates while contacting and supporting the positive electrode 11 by the top surface 33 s of the convex portion 33. While moving along the transport direction. For this reason, the positive electrode 11 can be moved along the conveyance direction while sliding on the guide member 40 by utilizing the frictional force between the top surface 33 s of the rotating spiral convex portion 33 and the positive electrode 11. . That is, positioning can be performed as described above without using a complicated device.

  Furthermore, in the manufacturing apparatus 20 according to the present embodiment, when the positive electrode 11 is supplied between the separator members 13a and 13b, the conveyance (supply) of the positive electrode 11 and the positioning of the positive electrode 11 are performed in a single configuration (supply unit 30). ). For this reason, for example, compared with the case where the apparatus for positioning the positive electrode 11 is provided in the back | latter stage of the apparatus for conveying the positive electrode 11, the apparatus structure can be simplified.

  The above embodiment explains one Embodiment of the manufacturing apparatus of the electrode with a separator which concerns on this invention, and the electrode with a separator. Therefore, the manufacturing apparatus of the electrode with a separator and the electrode with a separator according to the present invention are not limited to those described above. The manufacturing apparatus of the electrode with a separator and the method of manufacturing the electrode with a separator according to the present invention can be arbitrarily changed from those described above without departing from the gist of each claim.

  For example, instead of the guide member 40, a welding region formed on the separator members 13a and 13b can be used as a reference for positioning the positive electrode 11 in the short direction of the separator members 13a and 13b. This aspect will be described more specifically. As shown in FIG. 7, in this case, the manufacturing apparatus 20 further includes a third heater roller (second welding portion) 26 provided in front of the first heater roller 22. The third heater roller 26 welds one edge E2 in the short direction of the separator members 13a and 13b conveyed by the conveying roller 24 to form a second welding region W2.

  Then, the supply unit 30 moves the positive electrode 11 along the transport direction at a speed larger than the transport speed of the separator members 13a and 13b, so that the separator member 13a is brought into contact with the first welding region W1. , 13b. At this time, the supply unit 30 supports the positive electrode 11 in contact with the top surface 33 s of the convex portion 33 of the roller 31. Further, the supply unit 30 rotates along the conveyance direction while sliding the positive electrode 11 supported by the top surface 33 s in the second welding region W <b> 2 by rotating the convex portion 33 with the rotation of the roller 31. Let

  That is, in the manufacturing method (electrode housing step), before the first welding step for forming the first welding region W1, one edge E2 in the short direction of the separator members 13a and 13b conveyed in the conveying step is formed. A second welding region W2 is formed by welding to each other (second welding step). In the supply step, the separator member 13a is brought into contact with the first welding region W1 by moving the positive electrode 11 along the transport direction at a speed larger than the transport speed of the separator members 13a and 13b. , 13b. In particular, in the supply step, the positive electrode 11 is supported by the top surface 33 s in contact with the positive electrode 11, and the positive electrode 11 is moved along the transport direction while sliding on the second welding region W <b> 2.

  Even in such a case, as in the above-described embodiment, first, the positive electrode 11 is positioned with respect to the separator members 13a and 13b in the longitudinal direction (conveying direction) of the separator members 13a and 13b with reference to the first welding region W1. The In this case, the positive electrode 11 is positioned with respect to the separator members 13a and 13b in the short direction of the separator members 13a and 13b (the direction intersecting the transport direction) with reference to the second welding region W2 instead of the guide member 40. Is made. Therefore, the position system of the positive electrode 11 with respect to the separator 13 can be improved.

  On the other hand, in the manufacturing apparatus 20, the roller 31 of the supply unit 30 may be inclined with respect to the horizontal plane. That is, the roller 31 may be inclined about a rotation axis along the predetermined direction that intersects the conveying direction of the separator members 13a and 13b and is inclined along a predetermined direction including a vertical component. In that case, in the supply unit 30, the positive electrode 11 is supported by the top surface 33 s of the convex portion 33 on the vertical upper side of the guide member 40. In this case, in addition to the frictional force between the top surface 33 s of the convex portion 33 and the positive electrode 11, a component along the predetermined direction of gravity applied to the positive electrode 11 is used to connect the positive electrode 11 to the guide member 40 (or It can be moved along the conveying direction while sliding on the second welding region W2).

  In this case, as a configuration for moving the positive electrode 11 toward the guide member 40 (or the second welding region W2), the convex portion 33 may not be provided on the outer peripheral surface 32 of the roller 31. When the convex portion 33 is not provided on the roller 31, the outer peripheral surface 32 of the roller 31 supports the positive electrode 11 while being in contact with the positive electrode 11 (that is, a support portion). Further, the supply unit 30 rotates the roller 31 to move the positive electrode 11 along the conveyance direction while sliding the positive electrode 11 on the guide member 40 (or the second welding region W2). In this case, the positive electrode 11 is slid on the guide member 40 using a frictional force between the outer peripheral surface 32 of the rotating roller 31 and the positive electrode 11 and a component along a predetermined direction of gravity applied to the positive electrode 11. It can be moved along the conveyance direction.

  Furthermore, in the manufacturing apparatus 20, the supply unit 30 changes (or adds to) the above-described spiral convex portion 33 or the inclination of the roller 31 and injects compressed air toward the positive electrode 11. The positive electrode 11 may be configured to move toward the guide member 40 (or the second welding region W2).

  Furthermore, in the said embodiment, the case where the positive electrode 11 was accommodated in the separator 13 was demonstrated. However, the negative electrode 12 may be accommodated in the separator 13. That is, any one of the positive electrode 11 and the negative electrode 12 may be accommodated in the separator 13 to form an electrode with a separator.

  Subsequently, with reference to FIGS. 8 to 10, the second embodiment of the separator manufacturing apparatus and the electrode housing step will be described in detail. An orthogonal coordinate system S is shown in FIGS. In the orthogonal coordinate system S, the X direction and the Y direction indicate the horizontal direction, and the Z direction indicates the vertical direction. Here, the electrode housing step is a method for producing an electrode with a separator for producing a positive electrode with a separator (electrode with separator) 10 by housing the positive electrode (electrode) 11 in a bag-shaped separator 13. This manufacturing method is performed by the manufacturing apparatus 20A. That is, the manufacturing apparatus 20 </ b> A is an electrode manufacturing apparatus with a separator that manufactures the positive electrode 10 with a separator by housing the positive electrode 11 in a bag-shaped separator 13.

  The manufacturing apparatus 20A is different from the manufacturing apparatus 20 in that it includes a supply unit 30A instead of the supply unit 30. Other configurations of the manufacturing apparatus 20 </ b> A are the same as those of the manufacturing apparatus 20. Similarly to the supply unit 30, the supply unit 30 </ b> A supplies the positive electrode 11 to the separator members 13 a and 13 b conveyed by the conveyance roller 24. More specifically, the supply unit 30A moves the positive electrode 11 along the transport direction at a speed larger than the transport speed of the separator members 13a and 13b, thereby bringing the positive electrode 11 into contact with the first welding region W1. Is supplied between the pair of separator members 13a and 13b.

  Supply unit 30A includes a plurality of rollers 31A and a guide unit 40A. The rollers 31A are arranged along the conveying direction of the separator members 13a and 13b. The roller 31A has a columnar shape, and is held horizontally as an example. In the supply unit 30A, the positive electrode 11 is supported by the outer peripheral surface 32A of the roller 31A. In other words, the outer peripheral surface 32 </ b> A of the roller 31 </ b> A is a support portion that supports the positive electrode 11 while being in contact with the positive electrode 11. The guide portion 40A is arranged in parallel with the roller 31A (that is, the support portion) so as to be along the transport direction.

  The roller 31A rotates around the rotation axis Ax along the horizontal plane. The rotation axis Ax is inclined with respect to the transport direction. More specifically, the rotation axis Ax is inclined such that the other end on the opposite side of the one end on the guide portion 40A side is positioned in front of the separator members 13a and 13b in the transport direction. In other words, the rotation axis Ax is inclined so that a force f is applied to the positive electrode 11 on the outer peripheral surface 32A in the direction toward the guide portion 40A when the roller 31A rotates around the rotation axis Ax. . The guide portion 40A includes an annular belt 41 and a pair of rollers 42 around which the belt 41 is bridged. The belt 41 is driven, for example, when the roller 42 rotates.

  The supply unit 30A configured as described above supplies the positive electrode 11 between the separator members 13a and 13b as follows. That is, the supply unit 30A rotates the roller 31A in a state where the positive electrode 11 is supported by the outer peripheral surface 32A of the roller 31A (the positive electrode 11 is placed on the rotating roller 31A). Thereby, the positive electrode 11 is moved by the frictional force between the outer peripheral surface 32A and the rotation of the roller 31A.

  At this time, the positive electrode 11 has an arrow in the drawing directed in the transport direction and the short direction (direction toward the guide portion 40A) of the separator members 13a and 13b in accordance with the rotation of the roller 31A around the rotation axis Ax. It is moved in direction D. For this reason, the positive electrode 11 is moved in the conveyance direction of the separator members 13a and 13b while being in contact with the guide portion 40A. That is, the roller 31 </ b> A is a moving unit that rotates and moves the positive electrode 11 along the conveying direction while contacting the positive electrode 11 with the guide unit 40 </ b> A. At this time, the positive electrode 11 contacts the outer surface 41s of the belt 41 in the guide portion 40A.

  As shown in FIG. 9B, the belt 41 of the guide portion 40A overlaps the roller 31A when viewed from a direction intersecting the transport direction (for example, the Y direction). In other words, the outer surface 41 s of the belt 41 includes an overlapping portion 41 a that overlaps the roller 31 </ b> A when viewed from the direction intersecting the transport direction. In other words, the guide portion 40A overlaps the support portion when viewed from the direction intersecting the transport direction.

  As described above, the belt 41 can be driven by the rotation of the roller 42. Therefore, the speed of the belt 41 and the speed of movement of the positive electrode 11 can be made substantially equal by appropriately setting the rotation speed of the roller 42. That is, the contact portion (the outer surface 41 s of the belt 41) of the guide portion 40 </ b> A with the positive electrode 11 is configured to be movable at a speed corresponding to the movement speed of the positive electrode 11. In other words, the roller 42 is a drive unit that moves the outer surface 41 s of the belt 41 at a speed corresponding to the speed of movement of the positive electrode 11 by rotating the belt 41. As a result, the relative speed between the outer surface 41s of the belt 41 and the positive electrode 11 can be made substantially zero, and rubbing between the outer surface 41s and the positive electrode 11 can be suppressed.

  Here, the supply unit 30A sets the rotation speed of the roller 31A so that the moving speed of the positive electrode 11 along the conveying direction of the separator members 13a and 13b is larger than the moving speed of the separator members 13a and 13b. That is, the supply unit 30A moves the positive electrode 11 along the transport direction at a speed larger than the transport speed of the separator members 13a and 13b. Accordingly, the supply unit 30A supplies the positive electrode 11 between the separator members 13a and 13b so that the positive electrode 11 is brought into contact with the first welding region W1.

  The description will be continued with respect to an example of the electrode housing step (a method for producing an electrode with a separator) according to the second embodiment. Note that description of steps similar to those of the first embodiment is omitted. In this manufacturing method, the positive electrode 11 is moved to the first welding region W1 by moving the positive electrode 11 in the conveying direction of the separator members 13a and 13b by the supply unit 30A at a speed larger than the conveying speed of the separator members 13a and 13b. Supply is performed between the separator members 13a and 13b so as to abut (supply step). At this time, in a state where the positive electrode 11 is supported while being in contact with the outer peripheral surface 32A of the roller 31A, the positive electrode 11 is moved in the conveyance direction while being in contact with the guide portion 40A (the outer surface 41s of the belt 41) as the roller 31A rotates. It is done. As described above, the outer surface 41 s that is a contact portion with the positive electrode 11 in the guide portion 40 </ b> A moves at a speed corresponding to the moving speed of the positive electrode 11.

  The positive electrode 11 is positioned on the basis of the outer surface 41s in the short direction of the separator members 13a and 13b by abutment between the lower end portion 14x and the outer surface 41s of the belt 41 (see FIG. 10A). Furthermore, the positive electrode 11 is positioned with reference to the first welding region W1 in the longitudinal direction of the separator members 13a and 13b by abutment between the side end portion 14r and the first welding region W1 ((b) of FIG. 10). reference).

  As described above, in the manufacturing apparatus 20A and the manufacturing method (electrode housing step) according to the present embodiment, the positive electrode 11 is transported in the separator members 13a and 13b at a speed higher than the transport speed of the separator members 13a and 13b. And is supplied between the separator members 13a and 13b. For this reason, the positive electrode 11 is abutted against the first welding region W1 formed along the short direction of the separator members 13a and 13b. Therefore, when the positive electrode 11 is supplied, the positive electrode 11 is positioned with respect to the separator members 13a and 13b in the longitudinal direction (conveying direction) of the separator members 13a and 13b with reference to the first welding region W1.

  Further, in the manufacturing apparatus 20A and the manufacturing method according to the present embodiment, the positive electrode 11 is supported while being in contact with the outer peripheral surface 32A of the roller 31A, and at the same time, the guide portion 40A (the belt 41 of the belt 41) provided along the transport direction. It moves in the transport direction while contacting the outer surface 41s), and is supplied between the separator members 13a and 13b. Therefore, when the positive electrode 11 is supplied, the positive electrode 11 is positioned with respect to the separator members 13a and 13b in the short direction of the separator members 13a and 13b (direction intersecting the transport direction) with reference to the guide portion 40A.

  Thus, according to the manufacturing apparatus 20A and the manufacturing method according to the present embodiment, the positive electrode 11 is positioned with respect to the separator members 13a and 13b in a plurality of directions. Therefore, the positional accuracy of the positive electrode 11 with respect to the separator 13 can be improved. In particular, in the manufacturing apparatus 20A and the manufacturing method according to the present embodiment, the contact portion (the outer surface 41s of the belt 41) of the guide portion 40A with the positive electrode 11 can move at a speed corresponding to the moving speed of the positive electrode 11. (Moving). For this reason, it is suppressed that the positive electrode 11 is rubbed and damaged (for example, powder fall) by the guide part 40A.

  Further, in the manufacturing apparatus 20A according to the present embodiment, the supply unit 30A includes a plurality of rollers 31A that rotate around the rotation axis Ax. The positive electrode 11 is supported by the outer peripheral surface 32A of the roller 31A. The rotation axis Ax is inclined so that a force f is applied to the positive electrode 11 on the outer peripheral surface 32A in a direction toward the guide portion 40A when the roller 31A rotates around the rotation axis Ax. And the positive electrode 11 moves along a conveyance direction, contacting the guide part 40A by rotation of the roller 31A. As described above, the positive electrode 11 can be moved along the conveying direction while being brought into contact with the guide portion 40A using the frictional force between the outer peripheral surface 32A of the roller 31A and the positive electrode 11. That is, positioning can be performed as described above without using a complicated device.

  Further, in the manufacturing apparatus 20A according to the present embodiment, the guide portion 40A includes an annular belt 41 that contacts the positive electrode 11, and an outer surface 41s of the belt 41 by rotating the belt 41 (contact portion with the positive electrode 11). ) At a speed corresponding to the speed of movement of the positive electrode 11. For this reason, the area of a contact part can be enlarged compared with the case where a guide part is comprised with a some roller, for example. For this reason, the reaction force from the guide part 40A to the positive electrode 11 can be dispersed, and damage to the positive electrode 11 can be suppressed.

  Further, in the manufacturing apparatus 20A according to the present embodiment, the guide portion 40A overlaps the outer peripheral surface 32A (support portion) of the roller 31A when viewed from the direction intersecting the transport direction. For this reason, it is suppressed that the positive electrode 11 slips out between the outer peripheral surface 32A of the roller 31A and the guide portion 40A.

  Furthermore, even in the manufacturing apparatus 20A and the manufacturing method according to the present embodiment, the capacity of the power storage device 1 can be improved and safety can be improved for the same reason as the manufacturing apparatus 20 and the manufacturing method according to the first embodiment. It can be secured.

  The above embodiment explains one Embodiment of the manufacturing apparatus of the electrode with a separator which concerns on this invention, and the electrode with a separator. Therefore, the manufacturing apparatus of the electrode with a separator and the electrode with a separator according to the present invention are not limited to those described above. The manufacturing apparatus of the electrode with a separator and the method of manufacturing the electrode with a separator according to the present invention can be arbitrarily changed from those described above without departing from the gist of each claim.

  For example, as shown in FIG. 11, in the manufacturing apparatus 20A, a supply unit 30B can be used instead of the supply unit 30A. Supply unit 30B includes a plurality of rollers 31B and a guide unit 40B. The rollers 31B are arranged along the conveying direction of the separator members 13a and 13b. The roller 31B has a cylindrical shape and is held inclined with respect to the horizontal plane. That is, the roller 31B is inclined along the predetermined direction including the vertical component while intersecting the transport direction of the separator members 13a and 13b, and rotates around the rotation axis Ax along the predetermined direction. Here, as an example, the rotation axis Ax is substantially orthogonal to the conveying direction of the separator members 13a and 13b. In the supply unit 30B, the positive electrode 11 is supported by the outer peripheral surface 32B of the roller 31B. In other words, the outer peripheral surface 32 </ b> B of the roller 31 </ b> B is a support portion that supports the positive electrode 11 while being in contact with the positive electrode 11.

  The guide part 40B is arranged in parallel with the roller 41B (that is, the support part) along the transport direction. In particular, here, the guide portion 40B is disposed vertically below the roller 41B. In other words, in the supply unit 30B, the positive electrode 11 is supported by the outer peripheral surface 32B of the roller 31B on the vertical upper side of the guide unit 40B. The guide portion 40B includes a plurality of rollers 43 and a support body 44 that rotatably supports the rollers 43.

  The roller 43 has a columnar shape, for example. The rollers 43 are arranged along the conveying direction of the separator members 13a and 13b. The roller 43 is inclined with respect to the horizontal plane. More specifically, the roller 43 is inclined with respect to the horizontal plane so as to form a substantially right angle with the roller 31B when viewed from the conveying direction of the separator members 13a and 13b. In other words, the roller 43 is inclined such that the end portion on the roller 31B side is positioned vertically below the end portion on the opposite side. For example, the roller 43 overlaps the roller 31B when viewed from the direction along the rotation axis Ax of the roller 31B. In other words, the outer peripheral surface 43s of the roller 43 includes an overlapping portion 43a that overlaps the roller 31B when viewed from the direction along the rotation axis Ax. In other words, the guide portion 40B overlaps the support portion when viewed from the direction along the rotation axis Ax.

  The supply unit 30B configured as described above supplies the positive electrode 11 between the separator members 13a and 13b as follows. That is, the supply unit 30B rotates the roller 31B in a state where the positive electrode 11 is supported by the outer peripheral surface 32B of the roller 31B (the positive electrode 11 is placed on the rotating roller 31B). Thereby, the positive electrode 11 is moved along the conveyance direction of separator member 13a, 13b with the frictional force between the outer peripheral surfaces 32B with rotation of the roller 31B.

  At this time, the force f in the direction toward the guide portion 40 </ b> B is applied to the positive electrode 11 by gravity applied to the positive electrode 11. Therefore, the positive electrode 11 is moved in the arrow direction D in the drawing toward the conveying direction and the short direction (direction toward the guide portion 40B) of the separator members 13a and 13b. For this reason, the positive electrode 11 is moved in the conveyance direction of the separator members 13a and 13b while being in contact with the guide portion 40B. In other words, the roller 31B is a moving unit that rotates and moves the positive electrode 11 along the conveying direction while contacting the positive electrode 11 with the guide unit 40B. At this time, the positive electrode 11 contacts the outer peripheral surface 43s of the roller 43 in the guide portion 40B.

  As described above, the roller 43 is rotatably supported by the support body 44. Accordingly, at this time, the roller 43 is rotated by the frictional force between the outer peripheral surface 43 s of the roller 43 and the positive electrode 11. Thereby, the contact portion with the positive electrode 11 on the outer peripheral surface 43 s moves at the same speed as the movement speed of the positive electrode 11. That is, the contact portion of the outer peripheral surface 43 s with the positive electrode 11 is configured to be movable at a speed corresponding to the speed of movement of the positive electrode 11. Therefore, rubbing does not occur between the outer peripheral surface 43s and the positive electrode 11.

  Here, the supply unit 30B sets the rotation speed of the roller 31B so that the moving speed of the positive electrode 11 along the conveying direction of the separator members 13a and 13b is larger than the moving speed of the separator members 13a and 13b. That is, the supply unit 30B moves the positive electrode 11 along the transport direction at a speed higher than the transport speed of the separator members 13a and 13b. Thereby, the supply part 30B supplies the positive electrode 11 between the separator members 13a and 13b so that the positive electrode 11 is brought into contact with the first welding region W1.

  Even when such a supply unit 30B is used, the same effect as that obtained when the supply unit 30A is used can be obtained. In particular, the supply unit 30B does not require a driving source for the roller 43 of the guide unit 40B, and thus the configuration is simplified. Also in the supply unit 30A, the belt 41 can be simply supported rotatably without the roller 42 being driven. In this case, the configuration can be similarly simplified.

  Further, in the supply unit 30B, the rotation axis Ax of the roller 31B may be inclined like the rotation axis Ax of the roller 31A. Moreover, you may further provide the helical convex part 33 similarly to 1st Embodiment with respect to each roller 31A, 31B of supply part 30A, 30B.

  Further, the supply units 30A and 30B, for example, instead of (or in addition to) the inclination of the rollers 31A and 31B described above, eject the compressed air toward the positive electrode 11, thereby causing the positive electrode 11 to be guided to the guide units 40A and 40B. You may be comprised so that it may move toward. Furthermore, also in this embodiment, any one electrode of the positive electrode 11 and the negative electrode 12 should just be accommodated in the separator 13, and an electrode with a separator should be comprised.

  And roller 31A, 31B may be used in the supply part 30 of the manufacturing apparatus 20 which concerns on 1st Embodiment, and the roller 31 may be used in supply part 30A, 30B of the manufacturing apparatus 20A which concerns on 2nd Embodiment. .

  Subsequently, still another embodiment of the separator manufacturing electrode manufacturing apparatus and the electrode housing step will be described. Since the configuration of the separator-equipped manufacturing apparatus according to another embodiment is the same as that of the manufacturing apparatus 20 according to the first embodiment, the illustration is omitted and common reference numerals are used. In the present embodiment, the supply unit 30 supplies the positive electrode 11 to the separator members 13 a and 13 b being conveyed by the conveyance roller 24. More specifically, the supply unit 30 supplies the positive electrode 11 between the separator members 13a and 13b in synchronization with the conveyance of the separator members 13a and 13b. That is, the supply unit 30 moves the positive electrode 11 along the transport direction at a speed that matches the transport speed of the separator members 13a and 13b, so that the end portion (for example, the side end portion 14r) of the positive electrode 11 is first welded. Supply is performed between the pair of separator members 13a and 13b along the end of the region W1. Here, the positive electrode 11 is not brought into contact with the first welding region W1. In addition, moving the positive electrode 11 at a speed that matches the transport speed means, for example, setting the moving speed of the positive electrode 11 to be substantially the same as the transport speed.

  Here, description is continued about an example of the electrode accommodation process (manufacturing method of an electrode with a separator) concerning this embodiment. Here, only steps different from those in the first embodiment will be described. In this manufacturing method, the positive electrode 11 is moved by the supply unit 30 along the transport direction of the separator members 13a and 13b at a speed that matches the transport speed of the separator members 13a and 13b. Is supplied between the pair of separator members 13a and 13b so as to be along the end of the first welding region W1 (supplying step). That is, the supply unit 30 supplies the positive electrode 11 between the separator members 13a and 13b in synchronization with the conveyance of the separator members 13a and 13b.

  As described above, in the manufacturing apparatus 20 and the manufacturing method (electrode housing step) according to the present embodiment, the positive electrode 11 is transported in the separator members 13a and 13b at a speed that matches the transport speed of the separator members 13a and 13b. And is supplied between the separator members 13a and 13b. At this time, the edge part of the positive electrode 11 is made to follow the 1st welding area | region W1 formed along the transversal direction of the separator members 13a and 13b. Therefore, when the positive electrode 11 is supplied, the positive electrode 11 is positioned with respect to the separator members 13a and 13b in the longitudinal direction (conveying direction) of the separator members 13a and 13b.

  Further, the positive electrode 11 is supported while being in contact with the top surface 33s of the convex portion 33 of the roller 31, and is moved in the transport direction while sliding on the guide member 40 provided along the transport direction, so that the separator member 13a. , 13b. Therefore, when the positive electrode 11 is supplied, the positive electrode 11 is positioned with respect to the separator members 13a and 13b in the short direction of the separator members 13a and 13b (direction intersecting the transport direction) with the guide member 40 as a reference. Thus, according to the manufacturing apparatus 20 and the manufacturing method according to the present embodiment, the positive electrode 11 is positioned with respect to the separator members 13a and 13b in a plurality of directions. Therefore, the positional accuracy of the positive electrode 11 with respect to the separator 13 can be improved.

  Note that the present embodiment can be modified in various ways as described above without departing from the spirit of the claims.

  DESCRIPTION OF SYMBOLS 10 ... Positive electrode with separator (electrode with separator), 11 ... Positive electrode (electrode), 13 ... Separator, 13a, 13b ... Separator member, 20, 20A ... Manufacturing apparatus (manufacturing apparatus of electrode with separator), 22 ... 1st heater roller ( First welding section), 24 ... Conveying roller (conveying section), 26 ... Third heater roller (second welding section), 30, 30A, 30B ... Supply section, 31, 31A, 31B ... Roller (moving section), 32 ... Outer peripheral surface, 32A, 32B ... outer peripheral surface (support portion), 33 ... convex portion, 33s ... top surface (support portion), E2 ... edge, 40 ... guide member (guide portion), 40A, 40B ... guide portion, 41 ... belt, 42 ... roller (driving unit), W1 ... first welding region, W2 ... second welding region, Ax ... rotating shaft.

Claims (13)

A separator-equipped manufacturing apparatus that manufactures an electrode with a separator by housing the electrode in a bag-shaped separator,
A transport unit configured to transport a pair of long sheet-shaped separator members constituting the bag-shaped separator in a transport direction along a longitudinal direction of the separator member;
A first welding portion that forms a first welding region by welding the pair of separator members conveyed by the conveying portion to each other along a short direction of the separator member;
Supplying between the pair of separator members so that the electrodes are brought into contact with the first welding region by moving the electrodes along the transport direction at a speed greater than the transport speed of the separator members And comprising
The supply unit
A support part for supporting the electrode while being in contact with the electrode;
A guide portion provided on the support portion so as to extend along the transport direction;
A moving part that moves along the transport direction while sliding the electrode supported by the support part on the guide part,
Equipment for manufacturing electrodes with separators. The supply unit includes a plurality of rollers that rotate around a rotation axis that intersects the transport direction;
The rollers are arranged along the conveying direction;
The outer peripheral surface of the roller is provided with a spiral convex portion extending around the roller about the rotation axis,
The support part is constituted by the top surface of the convex part,
The moving part is constituted by the roller, and moves the electrode along the transport direction while sliding the electrode on the guide part by rotating the convex part as the roller rotates.
The manufacturing apparatus of the electrode with a separator of Claim 1. The roller intersects the transport direction and is inclined along a predetermined direction including a vertical component, and rotates around a rotation axis along the predetermined direction.
The support portion supports the electrode vertically above the guide portion,
The manufacturing apparatus of the electrode with a separator of Claim 2. The supply unit includes a plurality of rollers that intersect with the transport direction and are inclined in a predetermined direction including a vertical component, and rotate around a rotation axis along the predetermined direction,
The rollers are arranged along the conveying direction;
The support portion is constituted by the outer peripheral surface of the roller, and supports the electrode on the vertical upper side than the guide portion,
The moving unit is constituted by the roller, and moves the electrode along the transport direction while sliding the electrode on the guide unit by rotating the roller.
The manufacturing apparatus of the electrode with a separator of Claim 1. A separator-equipped manufacturing apparatus that manufactures an electrode with a separator by housing the electrode in a bag-shaped separator,
A transport unit configured to transport a pair of long sheet-shaped separator members constituting the bag-shaped separator in a transport direction along a longitudinal direction of the separator member;
A first welding portion that forms a first welding region by welding the pair of separator members conveyed by the conveying portion to each other along a short direction of the separator member;
A second welding part that is arranged in front of the first welding part and forms a second welding region by welding one edge part in the short direction of the pair of separator members conveyed by the conveying part to each other; ,
Supplying between the pair of separator members so that the electrodes are brought into contact with the first welding region by moving the electrodes along the transport direction at a speed greater than the transport speed of the separator members And comprising
The supply unit
A support part for supporting the electrode while being in contact with the electrode;
A moving unit that moves the electrode supported by the support unit along the transport direction while sliding the electrode in the second welding region.
Equipment for manufacturing electrodes with separators. A method for producing an electrode with a separator for producing an electrode with a separator by accommodating the electrode in a bag-like separator,
A conveying step of conveying a pair of long sheet-like separator members constituting the bag-shaped separator in a conveying direction along a longitudinal direction of the separator member;
A first welding step in which a pair of the separator members conveyed in the conveying step are welded together along a short direction of the separator member to form a first welding region;
Supplying between the pair of separator members so that the electrodes are brought into contact with the first welding region by moving the electrodes along the transport direction at a speed greater than the transport speed of the separator members And comprising steps
In the supplying step, the electrode is supported by a support portion that contacts the electrode, and the electrode is moved along the transport direction while sliding on a guide portion extending along the transport direction.
Manufacturing method of electrode with separator. A method for producing an electrode with a separator for producing an electrode with a separator by accommodating the electrode in a bag-like separator,
A conveying step of conveying a pair of long sheet-like separator members constituting the bag-shaped separator in a conveying direction along a longitudinal direction of the separator member;
A first welding step in which a pair of the separator members conveyed in the conveying step are welded together along a short direction of the separator member to form a first welding region;
Before the first welding step, a second welding step for forming a second welding region by welding one edge of the pair of separator members conveyed in the conveying step to each other in the lateral direction;
Supplying between the pair of separator members so that the electrodes are brought into contact with the first welding region by moving the electrodes along the transport direction at a speed greater than the transport speed of the separator members And comprising steps
In the supplying step, the electrode is supported by a support portion that contacts the electrode, and the electrode is moved along the transport direction while sliding the electrode in the second welding region.
Manufacturing method of electrode with separator. A separator-equipped manufacturing apparatus that manufactures an electrode with a separator by housing the electrode in a bag-shaped separator,
A transport unit configured to transport a pair of long sheet-shaped separator members constituting the bag-shaped separator in a transport direction along a longitudinal direction of the separator member;
A first welding portion that forms a first welding region by welding the pair of separator members conveyed by the conveying portion to each other along a short direction of the separator member;
Supplying between the pair of separator members so that the electrodes are brought into contact with the first welding region by moving the electrodes along the transport direction at a speed greater than the transport speed of the separator members And comprising
The supply unit
A support part for supporting the electrode while being in contact with the electrode;
A guide portion arranged in parallel with the support portion along the transport direction;
A moving part that moves the electrode supported by the support part along the transport direction while contacting the guide part,
The contact portion of the guide portion with the electrode is configured to be movable at a speed corresponding to the speed of movement of the electrode.
Equipment for manufacturing electrodes with separators. The supply unit includes a plurality of rollers that rotate around a rotation axis;
The rollers are arranged along the conveying direction;
The support portion is constituted by an outer peripheral surface of the roller,
The rotating shaft is inclined so that a force is applied in a direction toward the guide portion with respect to the electrode on the outer peripheral surface when the roller rotates around the rotating shaft,
The moving unit is constituted by the roller, and moves the electrode along the transport direction while contacting the electrode with the guide unit by rotating the roller.
The manufacturing apparatus of the electrode with a separator of Claim 8. The guide unit includes a belt that contacts the electrode, and a drive unit that drives the belt to move the contact portion at a speed corresponding to the speed of movement of the electrode.
The manufacturing apparatus of the electrode with a separator of Claim 8 or 9. The guide portion overlaps the support portion as seen from the direction intersecting the transport direction.
The manufacturing apparatus of the electrode with a separator as described in any one of Claims 8-10. A method for producing an electrode with a separator for producing an electrode with a separator by accommodating the electrode in a bag-like separator,
A conveying step of conveying a pair of long sheet-like separator members constituting the bag-shaped separator in a conveying direction along a longitudinal direction of the separator member;
A first welding step in which a pair of the separator members conveyed in the conveying step are welded together along a short direction of the separator member to form a first welding region;
Supplying between the pair of separator members so that the electrodes are brought into contact with the first welding region by moving the electrodes along the transport direction at a speed greater than the transport speed of the separator members And comprising steps
In the supplying step, the electrode is supported by a support portion that contacts the electrode, and the electrode is moved along the transport direction while contacting the guide portion extending along the transport direction,
The contact portion of the guide portion with the electrode moves at a speed corresponding to the speed of movement of the electrode.
Manufacturing method of electrode with separator. A separator-equipped manufacturing apparatus that manufactures an electrode with a separator by housing the electrode in a bag-shaped separator,
A transport unit configured to transport a pair of long sheet-shaped separator members constituting the bag-shaped separator in a transport direction along a longitudinal direction of the separator member;
A first welding portion that forms a first welding region by welding the pair of separator members conveyed by the conveying portion to each other along a short direction of the separator member;
The electrode is moved at a speed that matches the transport speed of the separator member along the transport direction, so that the end of the electrode is aligned with the end of the first welding region. A supply section for supplying between,
The supply unit
A support part for supporting the electrode while being in contact with the electrode;
A guide portion provided on the support portion so as to extend along the transport direction;
A moving part that moves along the transport direction while sliding the electrode supported by the support part on the guide part,
Equipment for manufacturing electrodes with separators.

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