WO2014087884A1 - 電気デバイスのセパレータ搬送装置およびその搬送方法 - Google Patents
電気デバイスのセパレータ搬送装置およびその搬送方法 Download PDFInfo
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- WO2014087884A1 WO2014087884A1 PCT/JP2013/081790 JP2013081790W WO2014087884A1 WO 2014087884 A1 WO2014087884 A1 WO 2014087884A1 JP 2013081790 W JP2013081790 W JP 2013081790W WO 2014087884 A1 WO2014087884 A1 WO 2014087884A1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
- H01M4/139—Processes of manufacture
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/20—Layered products comprising a layer of metal comprising aluminium or copper
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B32B18/00—Layered products essentially comprising ceramics, e.g. refractory products
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/06—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
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- B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
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- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
- B32B37/24—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer not being coherent before laminating, e.g. made up from granular material sprinkled onto a substrate
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- B65H20/00—Advancing webs
- B65H20/10—Advancing webs by a feed band against which web is held by fluid pressure, e.g. suction or air blast
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- B65H35/04—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers from or with transverse cutters or perforators
- B65H35/06—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers from or with transverse cutters or perforators from or with blade, e.g. shear-blade, cutters or perforators
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- H01M4/04—Processes of manufacture in general
- H01M4/0471—Processes of manufacture in general involving thermal treatment, e.g. firing, sintering, backing particulate active material, thermal decomposition, pyrolysis
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- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
- H01M50/403—Manufacturing processes of separators, membranes or diaphragms
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- H—ELECTRICITY
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- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
- H01M50/409—Separators, membranes or diaphragms characterised by the material
- H01M50/449—Separators, membranes or diaphragms characterised by the material having a layered structure
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- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
- H01M50/46—Separators, membranes or diaphragms characterised by their combination with electrodes
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- B32B2307/20—Properties of the layers or laminate having particular electrical or magnetic properties, e.g. piezoelectric
- B32B2307/202—Conductive
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- B65H2301/50—Auxiliary process performed during handling process
- B65H2301/51—Modifying a characteristic of handled material
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- B65H2404/00—Parts for transporting or guiding the handled material
- B65H2404/10—Rollers
- B65H2404/14—Roller pairs
- B65H2404/143—Roller pairs driving roller and idler roller arrangement
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
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Definitions
- the present invention relates to an electrical device separator transport apparatus and a transport method thereof.
- an electric device such as a secondary battery seals a power generating element that is charged and discharged with an exterior material.
- the power generation element is configured by laminating an electrode and a separator.
- the separator easily contracts when heated. When the separator contracts, an electrical short circuit occurs locally and the output of the electrical device decreases.
- Patent Document 1 considers the difference in easiness of peeling due to the difference in material when transporting a long member formed by laminating other members on a base material, and its feed dimensions It is not the structure which conveys with the precision of this.
- the present invention has been made to solve the above-described problems, and is an electrical device separator that can be transported with a constant feed dimension of a separator formed by laminating a heat-resistant material on a molten material as a base material.
- An object of the present invention is to provide a transport device and a transport method thereof.
- the separator transport device for an electrical device that achieves the above object is to transport first electrodes and second electrodes having different polarities from the first electrodes, alternately stacked via separators.
- a separator including a molten material as a base material and a heat-resistant material laminated on one surface of the molten material and having a melting temperature higher than that of the molten material is used.
- the driving member abuts on the molten material portion of the separator.
- the separator transport method of the electrical device according to the present invention that achieves the above object is to transport the first electrode and the second electrode having a polarity different from that of the first electrode, alternately stacked via the separator. It is.
- a separator including a molten material as a base material and a heat-resistant material laminated on one surface of the molten material and having a melting temperature higher than that of the molten material is used.
- the separator is transported using a drive member that contacts the separator and transports the separator, and a pressure member that follows the drive member while urging the drive member through the separator.
- the driving member abuts on the molten material portion of the separator.
- FIG. 4 is a cross-sectional view taken along line 4-4 shown in FIG. 3 according to the present embodiment.
- FIG. 1 is a perspective view showing an electrical device 1 in which a separator 30 is joined by a separator joining device 100 including separator transport devices 500 and 600.
- FIG. FIG. 2 is an exploded perspective view showing the electric device 1 in which the separator 30 is joined by the separator joining apparatus 100 including the separator conveying apparatuses 500 and 600.
- FIG. 3 is a perspective view showing a state in which the negative electrode 20 is stacked on both ends of a bagging electrode 50 formed by packing the positive electrode 10 with a pair of separators 30 by the separator bonding apparatus 100 including the separator conveying apparatuses 500 and 600. It is. 4 is a cross-sectional view taken along line 4-4 shown in FIG.
- the electrical device 1 corresponds to, for example, a lithium ion secondary battery, a polymer lithium battery, a nickel-hydrogen battery, or a nickel-cadmium battery.
- the electric device 1 has a power generation element 60 that is charged and discharged sealed with an exterior material 40.
- the power generation element 60 is configured by alternately laminating the packed electrode 50 in which the positive electrode 10 is sandwiched and bonded by a pair of separators 30 and the negative electrode 20.
- the positive electrode 10 corresponds to a first electrode, and as shown in FIG. 2, a positive electrode active material 12 is formed on both surfaces of a positive electrode current collector 11 which is a conductor.
- the positive electrode terminal 11 a for taking out electric power is formed to extend from a part of one end of the positive electrode current collector 11.
- a plurality of the positive electrode terminals 11a of the positive electrodes 10 stacked together are fixed to each other by welding or adhesion.
- the material of the positive electrode current collector 11 of the positive electrode 10 is, for example, aluminum expanded metal, aluminum mesh, or aluminum punched metal.
- the material of the positive electrode active material 12 of the positive electrode 10 includes various oxides (lithium manganese oxide such as LiMn2O4; manganese dioxide; lithium nickel oxide such as LiNiO2) when the electric device 1 is a lithium ion secondary battery.
- Lithium cobalt oxide such as LiCoO 2; lithium-containing nickel cobalt oxide; lithium-containing amorphous vanadium pentoxide) or chalcogen compound (titanium disulfide, molybdenum disulfide) or the like is used.
- the negative electrode 20 corresponds to a second electrode having a polarity different from that of the first electrode (positive electrode 10).
- a negative electrode active material 22 is bound on both surfaces of a negative electrode current collector 21 which is a conductor. Formed.
- the negative electrode terminal 21 a extends from a part of one end of the negative electrode current collector 21 so as not to overlap the positive electrode terminal 11 a formed on the positive electrode 10.
- the length of the negative electrode 20 in the longitudinal direction is longer than the length of the positive electrode 10 in the longitudinal direction.
- the length of the negative electrode 20 in the short direction is the same as the length of the positive electrode 10 in the short direction.
- a plurality of negative electrode terminals 21a of the negative electrode 20 stacked on each other are fixed to each other by welding or adhesion.
- the material of the negative electrode current collector 21 of the negative electrode 20 of the negative electrode 20 for example, copper expanded metal, copper mesh, or copper punched metal is used.
- a carbon material that occludes and releases lithium ions is used as the material of the negative electrode active material 22 of the negative electrode 20.
- carbon materials for example, natural graphite, artificial graphite, carbon black, activated carbon, carbon fiber, coke, or organic precursors (phenol resin, polyacrylonitrile, or cellulose) are heat-treated in an inert atmosphere and synthesized. Carbon is used.
- the separator 30 is provided between the positive electrode 10 and the negative electrode 20, and electrically isolates the positive electrode 10 and the negative electrode 20 from each other.
- the separator 30 holds an electrolytic solution between the positive electrode 10 and the negative electrode 20 to ensure ion conductivity.
- the separator 30 is formed in a rectangular shape. The length in the longitudinal direction of the separator 30 is longer than the length in the longitudinal direction of the negative electrode 20 excluding the portion of the negative electrode terminal 21a.
- the separator 30 is formed by, for example, laminating a heat-resistant material 32 on one surface of a molten material 31.
- the heat resistant material 32 has a higher melting temperature than the molten material 31.
- irregularities are generated on the surface of the heat-resistant material 32 and the frictional force changes.
- the heat-resistant material 32 laminated on the molten material 31 is peeled off, the surface of the molten material 31 is exposed.
- Adjacent pairs of separators 30 are joined with the heat-resistant materials 32 facing each other. Therefore, even if the heat-resistant material 32 is, for example, a powder that easily spreads after being applied to the molten material 31 and dried, the powder can be confined and sealed in a pair of adjacent separators 30. . That is, even if the electric device 1 vibrates or receives an impact, the heat-resistant material 32 of the separator 30 can be prevented from scattering in the electric device 1.
- polypropylene is used as the material of the melting material 31 of the separator 30.
- the molten material 31 is impregnated with a nonaqueous electrolytic solution prepared by dissolving an electrolyte in a nonaqueous solvent.
- a polymer is included in order to hold the non-aqueous electrolyte.
- the material of the heat-resistant material 32 of the separator 30 is, for example, ceramic formed by molding an inorganic compound at a high temperature.
- the ceramic is made of a porous material formed by bonding a ceramic particle such as silica, alumina, zirconium oxide, titanium oxide or the like and a binder.
- the material of the heat-resistant material 32 is not limited to ceramics, and it is sufficient that the melting temperature is higher than that of the melting material 31.
- the ceramic particles correspond to powder, and for example, the bonding force varies depending on the bonding condition and density of the binder and affects the peel strength.
- the exterior material 40 is composed of, for example, laminate sheets 41 and 42 each provided with a metal plate, and covers and seals the power generation element 60 from both sides.
- the power generating element 60 is sealed with the laminate sheets 41 and 42, a part of the periphery of the laminate sheets 41 and 42 is opened, and the other periphery is sealed by heat welding or the like.
- An electrolyte solution is injected from the open portions of the laminate sheets 41 and 42, and the separator 30 and the like are impregnated with the charge solution. While decompressing the inside from the open portions of the laminate sheets 41 and 42, the open portions are also heat-sealed and completely sealed.
- the material of the laminate sheets 41 and 42 for example, three kinds of laminated materials are used. Specifically, for example, polyethylene (PE), ionomer, or ethylene vinyl acetate (EVA) is used as the material of the first layer of the heat-fusible resin adjacent to the negative electrode 20.
- PE polyethylene
- EVA ethylene vinyl acetate
- Al foil or Ni foil is used for the second layer metal foil.
- rigid polyethylene terephthalate (PET) or nylon is used for the third layer resin film.
- FIG. 5 is a perspective view showing a separator joining apparatus 100 that includes separator transport apparatuses 500 and 600 and joins the separator 30 of the electric device 1.
- FIG. 6 is a side view showing the vicinity of the separator conveyance device 500.
- FIG. 7 is a side view showing the vicinity of the separator transport device 1000 according to the comparative example.
- the positive electrode 10 may be inserted between the pair of separators 30.
- a description will be given of a configuration in which the separators 30 sandwiching the positive electrode 10 in the process of being conveyed are joined to each other by being pressurized while being heated by the heating and pressing member 710.
- the positive electrode 10 is wound around a positive electrode winding roller 210 in a roll shape and held.
- the positive winding roller 210 has a cylindrical shape and rotates in the clockwise direction following the rotation of a suction conveyor 310 described later.
- the positive electrode 10 unloaded from the positive electrode winding roller 210 is conveyed through a conveyance roller 220 toward the vacuum suction conveyance drums 540 and 640 described later.
- the suction conveyor 310 is composed of an endless belt, and a plurality of suction ports are provided on the surface.
- a plurality of rotating rollers 320 are provided on the inner peripheral surface of the suction conveyor 310.
- One of the plurality of rotating rollers 320 is a driving roller provided with power, and the other is a driven roller.
- Two sets of suction conveyors 310 rotated clockwise by a plurality of rotating rollers 320 are disposed, for example, on the downstream side and the upstream side in the transport direction of the positive electrode 10 with respect to the vacuum suction transport drums 540 and 640.
- Cutting members 410 and 420 for cutting the positive electrode 10 are disposed between the two sets of suction conveyors 310 disposed on the downstream side in the conveyance direction of the positive electrode 10 with respect to the vacuum suction conveyance drums 540 and 640.
- the cutting member 410 is provided with a straight and sharp cutting blade at the tip, and cuts one end of the continuous positive electrode 10.
- the cutting member 420 is provided with a sharp cutting blade refracted at the tip, and cuts the other end of the positive electrode 10 immediately after one end is cut.
- the shape of the cutting blade refracted by the cutting member 420 corresponds to the shape of the positive electrode terminal 11a.
- One separator 30 of the pair of separators 30 is wound around a separator winding roller 510 in a roll shape and held.
- the molten material 31 side of one separator 30 is in contact with the axis of the separator winding roller 510.
- Separator winding roller 510 has a cylindrical shape, and rotates counterclockwise following the rotation of vacuum suction transfer drum 540 corresponding to the transfer device.
- One separator 30 is nipped between the pressure roller 520 and the nip roller 530 and conveyed in a state where a certain tension is applied, and is rotated counterclockwise while being vacuum-adsorbed by the vacuum suction conveyance drum 540.
- the vacuum suction transfer drum 540 has a cylindrical shape and is provided with a plurality of suction ports.
- One separator 30 is cut at a constant width by a cutting member 430 provided in the vicinity of the vacuum suction transfer drum 540 and provided with a sharp cutting blade at the tip.
- Separator transport device 500 includes a pressure roller 520 and a nip roller 530.
- the nip roller 530 corresponds to a driving member.
- the nip portion 530a that contacts the molten material 31 of the separator 30 is made of a rubber member such as urethane, and is formed in a rotatable columnar shape or cylindrical shape.
- the nip roller 530 is rotated by a drive motor 531 via a transmission gear or the like.
- the pressure roller 520 corresponds to a pressure member.
- a portion of the separator 30 that contacts the heat-resistant material 32 is made of metal, and is formed in a rotatable columnar shape or a cylindrical shape.
- the separator 30 is sandwiched by a gap 500 s between the nip roller 530 and the pressure roller 520.
- the nip rollers 530 and 630 are in contact with the portion of the molten material 31 that is the base material, not the portion of the heat resistant material 32 that may be scraped off or peeled off. Therefore, the separator 30 formed by laminating the heat-resistant material 32 on the molten material 31 can be conveyed with a constant feed dimension. Since the portion of the molten material 31 of the separator 30 contacts the side of the nip rollers 530 and 630 that contact the separator 30 and convey the separator 30, excessive stress is not applied to the heat resistant material 32. Therefore, it is possible to prevent the heat-resistant material 32 of the separator 30 from being peeled off from the molten material 31 or causing contact damage to the heat-resistant material 32.
- the other separator 30 of the pair of separators 30 is wound around the separator winding roller 610 in a roll shape and held.
- the part of the molten material 31 of the other separator 30 is in contact with the axis of the separator winding roller 610.
- the separator winding roller 610 has a cylindrical shape, and rotates in the clockwise direction following the rotation of a vacuum suction conveyance drum 640 corresponding to the conveyance device.
- the other separator 30 is nipped by the pressure roller 620 and the nip roller 630 and conveyed in a state where a certain tension is applied, and is rotated clockwise while being vacuum-adsorbed by the vacuum suction conveyance drum 640.
- the vacuum suction transfer drum 640 has a cylindrical shape and is provided with a plurality of suction ports.
- the other separator 30 is cut with a certain width by a cutting member 440 provided close to the vacuum suction conveyance drum 640 and provided with a sharp cutting blade at the tip.
- Separator transport device 600 has the same configuration as separator transport device 500.
- Separator transport device 600 includes a pressure roller 620 and a nip roller 630.
- the nip roller 630 corresponds to a driving member.
- the nip portion that contacts the molten material 31 of the separator 30 is made of a rubber member such as urethane, and is formed in a rotatable columnar shape or cylindrical shape.
- the nip roller 630 is rotated by a drive motor (not shown) via a transmission gear or the like.
- the pressure roller 620 corresponds to a pressure member.
- a portion of the separator 30 that contacts the heat-resistant material 32 is made of metal, and is formed in a rotatable columnar shape or a cylindrical shape.
- the separator 30 is sandwiched between the nip roller 630 and the pressure roller 620.
- the one separator 30, the positive electrode 10, and the other separator 30 are transported in a stacked state so that the pair of separators 30 sandwich the positive electrode 10 in the space between the vacuum suction transport drums 540 and 640.
- the heating / pressurizing member 710 is disposed above and below both ends of the pair of separators 30 in the longitudinal direction, and moves up and down so that the pair of separators 30 is sandwiched and separated.
- the pair of separators 30 sandwiching the positive electrode 10 are joined to each other, and the packaged electrode 50 is formed.
- the pair of separators 30 are arranged so that the heat-resistant materials 32 face each other.
- the heating and pressing member 710 is made of stainless steel or copper, for example, and is formed in a rectangular shape.
- the heating and pressing member 710 moves up and down by a driving unit (not shown).
- the heating and pressing member 710 is heated by, for example, a heating wire or a heater bulb.
- the plurality of heating and pressurizing members 710 sandwich both ends of the pair of separators 30 in the longitudinal direction from above and below, and join the pair of separators 30 together.
- the pair of separators 30 are heated and pressurized by the heating and pressing member 710.
- the heating and pressing member 710 is set to a temperature at which the melting material 31 of the pair of separators 30 is melted and the heat-resistant material 32 is not melted. Therefore, the molten material 31 melted by the heating and pressing member 710 is pressurized, and the separators 30 are joined. Thereafter, the plurality of heating and pressing members 710 are separated from the pair of bonded separators 30.
- the heating and pressing member 710 pressurizes the pair of separators 30 sandwiching the positive electrode 10 while heating them, and joins the pair of separators 30 together.
- Such a joining process of the pair of separators 30 corresponds to a process of forming a so-called packaged electrode 50 which is excellent in terms of mass productivity and quality.
- the packaged electrode suction pad 810 temporarily places the completed packaged electrode 50 on a predetermined mounting table 850.
- the packaged electrode suction pad 810 is formed in a plate shape, and a plurality of suction ports are provided on the surface that contacts the packaged electrode 50.
- the packaged electrode suction pad 810 is connected to one end of a telescopic part 820 that can be telescopically powered by, for example, an air compressor (not shown).
- the other end of the expansion / contraction part 820 is connected to a plate-like support member 830.
- the support member 830 reciprocates along the pair of rails 840 by, for example, a rotation motor (not shown).
- the bagging electrode suction pad 810 sucks and moves the bagging electrode 50 conveyed by the suction conveyor 310 by the expansion / contraction part 820, the support member 830, and the pair of rails 840, and moves to the mounting table 850. Place.
- the separator conveying apparatuses 500 and 600 of the electric device 1 convey the positive electrode 10 and the negative electrode 20 having a polarity different from that of the positive electrode 10 by alternately stacking them via the separator 30.
- a separator 30 including a molten material 31 that is a base material and a heat-resistant material 32 that is laminated on one surface of the molten material 31 and has a higher melting temperature than the molten material 31 is used.
- Nip rollers 530 and 630 that contact the separator 30 and transport the separator 30, and pressure rollers 520 and 620 that follow the nip rollers 530 and 630 while urging the nip rollers 530 and 630 through the separator 30 Yes.
- the nip rollers 530 and 630 are in contact with the part of the molten material 31 of the separator 30.
- the separator 30 formed by laminating the heat-resistant material 32 on the molten material 31 can be conveyed with a constant feed dimension.
- the electrical device 1 in which the electrodes and the separators 30 are alternately stacked can prevent the deterioration of the electrical characteristics due to the positional deviation of the separators 30.
- the portion of the molten material 31 of the separator 30 abuts on the side of the nip rollers 530 and 630 that abut against the separator 30 and apply the force for conveying the separator 30, and therefore the heat resistant material 32. Excessive stress is not applied. Therefore, it is possible to prevent the heat-resistant material 32 of the separator 30 from being peeled off from the molten material 31 or causing contact damage to the heat-resistant material 32.
- the amount of the heat-resistant material 32 of the separator 30 that is scraped and scattered can be suppressed, so that it is not necessary to provide a cleaning mechanism for cleaning the heat-resistant material 32 that has been scraped and scattered. Even if a cleaning mechanism is provided, the structure can be greatly simplified.
- the separator transport apparatus 500 of the present embodiment when the conventional apparatus is improved and the separator transport apparatus 500 of the present embodiment is configured, it is only necessary to replace the arrangement of the nip rollers 530 and 630 and the pressure rollers 520 and 620.
- the device can be easily remodeled, the device can be remodeled in a short time, and the cost of remodeling the device is low.
- the nip rollers 530 and 630 are formed of an elastic material at the portion that contacts the molten material 31 of the separator 30, and the pressure rollers 520 and 620 are formed of a metal at the portion that contacts the heat resistant material 32 of the separator 30. It can be set as the structure formed by.
- nip rollers 530 and 630 are made of an elastic body having good followability with respect to the shape of the separator 30, when the pressure rollers 520 and 620 are urged, a part of the nip is recessed. 530a or the like can be formed. Therefore, a constant frictional force is generated with respect to the molten material 31 of the separator 30 at the nip portion 530a and the like, and the separator 30 can be transported in a state where the feed dimension is maintained with high accuracy.
- the pressure rollers 520 and 620 are made of metal at the portion that contacts the heat-resistant material 32 of the separator 30, so that it is easy to polish the surface and reduce the friction coefficient.
- the metal having a reduced friction coefficient can make it difficult to adhere the heat-resistant material 32 of the separator 30.
- the pressure rollers 520 and 620 are rollers that are driven by the nip rollers 530 and 630, so that the accuracy of the feed dimension of the separator 30 is affected. There is no.
- the heat-resistant material 32 of the separator 30 to be conveyed can be configured to include powder that is applied to the molten material 31 and dried.
- abuts to the pressure roller 520 will be a powder which is easy to be cut
- the powder can be formed of ceramics.
- the heat-resistant material 32 in contact with the pressure roller 520 is a powder that is very easy to be scraped, such as a ceramic formed with an inorganic compound at a high temperature. Even when the unevenness is generated and the frictional force fluctuates greatly, the nip rollers 530 and 630 that control the feed dimension of the separator 30 are not affected by the contact with the molten material.
- the nip roller 1030 corresponding to the driving member contacts the heat-resistant material 32 of the separator 30, and the pressure roller 1020 corresponding to the pressure member is the molten material 31 of the separator 30. Abut.
- the nip roller 1030 is rotated by a drive motor 1031 via a transmission gear or the like.
- the nip roller 1030 is urged by the pressure roller 1020 to form a nip portion 1030a having a partially recessed portion.
- the separator 30 is sandwiched by a gap 1000 s between the nip roller 1030 and the pressure roller 1020.
- the nip roller 1030 that controls the feed dimension of the separator 30 is brought into contact with the heat-resistant material 32 that is more easily scraped or peeled off than the molten material 31.
- the frictional force between them becomes unstable, and the separator 30 cannot be conveyed with high accuracy.
- the nip rollers 530 and 630 are not the part of the heat-resistant material 32 that may be scraped or peeled off, but the part of the molten material 31 that is a base material. Abut. Therefore, according to this embodiment, unlike the comparative example, the separator 30 formed by laminating the heat-resistant material 32 on the molten material 31 can be conveyed with a constant feed dimension.
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Fluid Mechanics (AREA)
- Physics & Mathematics (AREA)
- Materials Engineering (AREA)
- Ceramic Engineering (AREA)
- Cell Separators (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Battery Electrode And Active Subsutance (AREA)
- Laminated Bodies (AREA)
Abstract
Description
まず、本実施形態に係るセパレータ搬送装置500および600を備えたセパレータ接合装置100によってセパレータ30が搬送され、そのセパレータ30同士が接合される電気デバイス1の構成について、図1~図4を参照しながら説明する。
10 正極(第1電極)、
11 正極集電体、
11a 正極電極端子、
12 正極活物質、
20 負極(第2電極)、
21 負極集電体、
21a 負極電極端子、
22 負極活物質、
30 セパレータ、
31 溶融材、
32 耐熱材、
40 外装材、
41,42 ラミネートシート、
50,70 袋詰電極、
60 発電要素、
100 セパレータ接合装置、
210 正極巻付ローラ、
220 搬送ローラ、
310 サクションコンベア、
320 回転ローラ、
410,420,430,440 切断部材、
500,600,1000 セパレータ搬送装置、
500s,1000s 隙間、
510,610 セパレータ巻付ローラ、
520,620,1020 加圧ローラ(加圧部材)、
530,630,1030 ニップローラ(駆動部材)、
530a,1030a ニップ部、
540,640 真空吸引搬送ドラム、
710 加熱加圧部材、
810 袋詰電極吸着パッド、
820 伸縮部、
830 支持部材、
840 レール、
850 載置台。
Claims (5)
- 第1電極と、前記第1電極とは極性の異なる第2電極とを、セパレータを介して交互に積層して搬送する搬送装置であって、
基材である溶融材と、前記溶融材の片面に積層し前記溶融材よりも溶融温度が高い耐熱材と、を含む前記セパレータを用い、
前記セパレータに当接して前記セパレータを搬送する駆動部材と、前記セパレータを介して前記駆動部材を付勢しつつ、前記駆動部材に従動する加圧部材とを有し、
前記駆動部材は、前記セパレータの前記溶融材の部分に当接する電気デバイスのセパレータ搬送装置。 - 前記駆動部材は、前記セパレータの前記溶融材と当接する部分を弾性材で形成し、
前記加圧部材は、前記セパレータの前記耐熱材と当接する部分を金属で形成した請求項1に記載の電気デバイスのセパレータ搬送装置。 - 搬送する前記セパレータの前記耐熱材は、前記溶融材に塗布して乾燥させた粉体を含む請求項1または2に記載の電気デバイスのセパレータ搬送装置。
- 前記粉体は、セラミックスで形成した請求項3に記載の電気デバイスのセパレータ搬送装置。
- 第1電極と、前記第1電極とは極性の異なる第2電極とを、セパレータを介して交互に積層して搬送する搬送方法であって、
基材である溶融材と、前記溶融材の片面に積層し前記溶融材よりも溶融温度が高い耐熱材と、を含む前記セパレータを用い、
前記セパレータに当接して前記セパレータを搬送する駆動部材と、前記セパレータを介して前記駆動部材を付勢しつつ、前記駆動部材に従動する加圧部材とを用いて、前記セパレータを搬送し、
前記駆動部材は、前記セパレータの前記溶融材の部分に当接する電気デバイスのセパレータ搬送方法。
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US14/646,243 US20150349311A1 (en) | 2012-12-05 | 2013-11-26 | Conveying apparatus and a conveying method of separator of electric device |
KR1020157012490A KR101605665B1 (ko) | 2012-12-05 | 2013-11-26 | 전기 디바이스의 세퍼레이터 반송 장치 및 그 반송 방법 |
CN201380059819.9A CN104838523B (zh) | 2012-12-05 | 2013-11-26 | 电气装置的隔膜输送装置及其输送方法 |
EP13861307.0A EP2930772B1 (en) | 2012-12-05 | 2013-11-26 | Electrical device separator conveyance method |
JP2014551049A JP5983766B2 (ja) | 2012-12-05 | 2013-11-26 | 電気デバイスのセパレータ搬送装置およびその搬送方法 |
US15/298,014 US9941500B2 (en) | 2012-12-05 | 2016-10-19 | Conveying apparatus and a conveying method of separator of electric device |
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US15/298,014 Division US9941500B2 (en) | 2012-12-05 | 2016-10-19 | Conveying apparatus and a conveying method of separator of electric device |
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US9799910B2 (en) | 2012-12-28 | 2017-10-24 | Nissan Motor Co., Ltd. | Welding apparatus and a welding method for separator of electrical device |
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KR101826142B1 (ko) * | 2015-08-27 | 2018-02-07 | 삼성에스디아이 주식회사 | 전극 조립체 및 그 제조 방법과 이차 전지 |
DE102017216133A1 (de) | 2017-09-13 | 2019-03-14 | Robert Bosch Gmbh | Verfahren zum Trennen bandförmigen Elektroden- und Separatormaterials auf einer gekrümmten Oberfläche |
WO2020203113A1 (ja) * | 2019-03-29 | 2020-10-08 | パナソニック株式会社 | 積層電極体及び積層電極体の接着装置 |
CN217172649U (zh) * | 2022-02-28 | 2022-08-12 | 宁德时代新能源科技股份有限公司 | 一种穿带装置及烘烤设备 |
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KR101605665B1 (ko) | 2016-03-22 |
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US20170047568A1 (en) | 2017-02-16 |
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