WO2016158998A1 - 蓄電素子の製造方法及び蓄電素子の製造装置 - Google Patents
蓄電素子の製造方法及び蓄電素子の製造装置 Download PDFInfo
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- WO2016158998A1 WO2016158998A1 PCT/JP2016/060228 JP2016060228W WO2016158998A1 WO 2016158998 A1 WO2016158998 A1 WO 2016158998A1 JP 2016060228 W JP2016060228 W JP 2016060228W WO 2016158998 A1 WO2016158998 A1 WO 2016158998A1
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- Prior art keywords
- welding
- jig
- storage element
- shield gas
- container
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- 238000003860 storage Methods 0.000 title claims abstract description 89
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 64
- 230000005611 electricity Effects 0.000 title claims abstract description 13
- 238000003466 welding Methods 0.000 claims abstract description 204
- 238000000034 method Methods 0.000 claims description 24
- 238000001816 cooling Methods 0.000 claims description 7
- 230000001678 irradiating effect Effects 0.000 claims description 6
- 239000007789 gas Substances 0.000 description 165
- 238000007664 blowing Methods 0.000 description 21
- 238000005304 joining Methods 0.000 description 10
- 230000004048 modification Effects 0.000 description 10
- 238000012986 modification Methods 0.000 description 10
- 238000004146 energy storage Methods 0.000 description 7
- 239000000470 constituent Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 239000002826 coolant Substances 0.000 description 3
- 239000011255 nonaqueous electrolyte Substances 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 201000005569 Gout Diseases 0.000 description 1
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
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- 229910001416 lithium ion Inorganic materials 0.000 description 1
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- 229910001220 stainless steel Inorganic materials 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/0029—Processes of manufacture
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/14—Working by laser beam, e.g. welding, cutting or boring using a fluid stream, e.g. a jet of gas, in conjunction with the laser beam; Nozzles therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/20—Bonding
- B23K26/21—Bonding by welding
- B23K26/24—Seam welding
- B23K26/26—Seam welding of rectilinear seams
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/16—Arc welding or cutting making use of shielding gas
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/78—Cases; Housings; Encapsulations; Mountings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/78—Cases; Housings; Encapsulations; Mountings
- H01G11/80—Gaskets; Sealings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/84—Processes for the manufacture of hybrid or EDL capacitors, or components thereof
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/058—Construction or manufacture
-
- H—ELECTRICITY
- 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
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/102—Primary casings; Jackets or wrappings characterised by their shape or physical structure
- H01M50/103—Primary casings; Jackets or wrappings characterised by their shape or physical structure prismatic or rectangular
-
- H—ELECTRICITY
- 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
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/147—Lids or covers
- H01M50/166—Lids or covers characterised by the methods of assembling casings with lids
- H01M50/169—Lids or covers characterised by the methods of assembling casings with lids by welding, brazing or soldering
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/36—Electric or electronic devices
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
-
- H—ELECTRICITY
- 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
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/147—Lids or covers
- H01M50/148—Lids or covers characterised by their shape
- H01M50/15—Lids or covers characterised by their shape for prismatic or rectangular cells
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/13—Energy storage using capacitors
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
-
- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
Definitions
- the present invention relates to a method for manufacturing a power storage element and a device for manufacturing a power storage element.
- the conventional laser welding apparatus may cause poor welding.
- the present invention has been made to solve the above-described problems, and an object of the present invention is to provide a method for manufacturing a storage element that can reduce the occurrence of poor welding.
- a method for manufacturing a power storage element is a method for manufacturing a power storage element that performs welding on a container of a power storage element.
- the flow direction of the shield gas supplied from two different directions toward the two welding target portions is changed by the jig after passing through the vicinity of each welding target portion. Specifically, it goes in the direction away from the container. That is, by arranging the jig between the two welding target portions, the two flows of the shielding gas are suppressed from joining at the two welding target portions. For this reason, generation
- a stable shield gas atmosphere can be formed in the welding target portion, and the occurrence of poor welding can be reduced.
- FIG. 1 is a diagram illustrating an external appearance of a power storage device manufacturing apparatus according to the present embodiment.
- FIG. 2 is a diagram for explaining the arrangement of jigs in the method for manufacturing the energy storage device according to the present embodiment.
- FIG. 3 is a view for explaining a welding path of the container of the electricity storage device according to the present embodiment.
- FIG. 4 is a perspective view showing an external appearance of the energy storage device according to the embodiment.
- FIG. 5A is a perspective view when the jig according to the embodiment is viewed from the upper oblique direction.
- FIG. 5B is a perspective view when the jig according to the embodiment is viewed from a lower oblique direction.
- FIG. 6 is an enlarged view of a part around the jig in the VI-VI sectional view of the manufacturing apparatus in FIG. 1 according to the embodiment.
- FIG. 7 is a flowchart showing a method for manufacturing the energy storage device according to the embodiment.
- FIG. 8 is a diagram showing an external appearance of a storage device manufacturing apparatus according to a modification.
- FIG. 9 is an enlarged view of a part around the jig in the IX-IX sectional view of the manufacturing apparatus in FIG.
- FIG. 10 is an enlarged view of a part around the jig in the XX sectional view of the manufacturing apparatus in FIG.
- FIG. 11 is a perspective view showing an appearance of a state in which the jig according to the modification is disposed at a predetermined position of the power storage element.
- the conventional laser welding apparatus may cause poor welding.
- the present invention has been made to solve the above-described problems, and an object of the present invention is to provide a method for manufacturing a storage element that can reduce the occurrence of poor welding by forming a stable shielding gas atmosphere.
- a method for manufacturing a power storage element is a method for manufacturing a power storage element that performs welding on a container of a power storage element.
- the flow direction of the shield gas supplied from two different directions toward the two welding target portions is changed by the jig after passing through the vicinity of each welding target portion. Specifically, it goes in the direction away from the container. That is, by arranging the jig between the two welding target portions, the two flows of the shielding gas are suppressed from joining at the two welding target portions. For this reason, generation
- the shield gas supplied to the welding target portion may flow along an inclined surface that is at least a part of the wall surface.
- each of the two flows of the shield gas supplied from two different directions can be easily flown along the wall surface of the jig. Therefore, the direction in which each of the two flows of shield gas flows can be changed so that turbulent flow does not occur. Thereby, the atmosphere of the stable shield gas can be formed in two welding object parts, and generation
- the jig may be placed in contact with the container.
- a cooling step for cooling the jig may be included.
- the heat generated by welding which is thermally conducted to the jig, can be released, and the high temperature can be suppressed by repeatedly using the jig.
- the container of an electrical storage element it can suppress that a high temperature jig
- tool can be extended.
- the two welding target portions may be welded by irradiating a laser beam from a predetermined position toward the two welding target portions while changing an irradiation angle.
- An electrical storage element manufacturing apparatus is an electrical storage element manufacturing apparatus for performing welding on an electrical storage element container, and includes two welding target portions to be welded.
- a jig having a wall surface disposed between the two welding target portions to which shield gas is supplied from two different directions is provided.
- the flow direction of the shield gas supplied from two different directions toward the two welding target portions is changed by the jig after passing through the vicinity of each welding target portion. Specifically, it goes in the direction away from the container. That is, by arranging the jig between the two welding target portions, the two flows of the shielding gas are suppressed from joining at the two welding target portions. For this reason, generation
- blowout ports that supply shield gas from the two different directions may be provided in the two welding target portions.
- the shielding gas can be easily supplied to the two welding target portions.
- At least a part of the wall surface may be inclined with respect to the direction in which the shield gas flows.
- the direction of the flow can be changed by causing each of the two flows of shield gas supplied from two different directions along the inclined surface of the jig. Therefore, the direction in which the shield gas flows can be changed so that turbulent flow does not occur. Thereby, the atmosphere of the stable shield gas can be formed in two welding object parts, and generation
- the container includes a main body having a rectangular opening and a long plate-like lid that closes the opening, and the two welding target portions are formed in a rectangular annular shape between the main body and the lid.
- the jig is disposed between the two long side portions, and at least a part of the wall surface is in a direction in which the shield gas flows.
- the shield gas may be inclined so as to move away from the container toward the downstream side in the flow direction.
- the distance between each other is short and the two welding distances are long portions. Since a jig is disposed between the long side portions, it is possible to suppress the joining of shield gases supplied from two different directions. Moreover, since the direction in which the shield gas flows can be changed to a direction away from the container, it is possible to suppress the shield gas supplied from two different directions from joining in the welding target portion of the container.
- FIG. 1 is a diagram showing an external appearance of a storage element manufacturing apparatus according to an embodiment.
- FIG. 2 is a view for explaining a jig and a plurality of fixing portions according to the embodiment.
- the Z-axis direction is shown as the vertical direction, and in the following, the Z-axis direction is the vertical direction (that is, the Z-axis direction plus side is upward, the Z-axis direction is Although there is a portion that is described as the minus side below), in the actual usage, the Z-axis direction is not always the vertical direction.
- manufacturing apparatus 10 for power storage element 500 includes welded portion 100, a plurality (four in this embodiment) of blowing portions 210 to 240, a jig 300, and a plurality of (this embodiment). 4) fixing portions 410 to 440.
- manufacturing apparatus 10 is an apparatus for welding main body 511 and lid 512 of container 510 of power storage element 500. That is, in the present embodiment, the weld target portion 530 to be welded of the container 510 of the power storage element 500 is a boundary portion between the main body 511 and the lid body 512.
- the welding unit 100 is a laser unit that welds the container of the electricity storage element 500 by irradiating the laser beam L1 (L2). Specifically, the welded portion 100 welds the welding target portion by irradiating the laser beam while changing the irradiation angle from a predetermined position P1 (above) toward the welding target portion of the container.
- the welding part 100 welds a part of welding object part with the angle of the laser beam L1, and then welds another part of welding object part with the angle of the laser beam L2.
- the welding unit 100 includes a scanner unit (for example, a galvano scanner unit) that scans by changing the angle of the laser beam emitted from the welding unit 100 by reflecting the laser beam to a mirror that can change the angle. Have.
- FIG. 3 is a view for explaining a welding path of the container of the electricity storage device according to the present embodiment.
- the welded portion 100 performs welding in the order of, for example, a long side portion 531, a short side portion 533, a long side portion 532, and a short side portion 534. . That is, the welded portion 100 performs welding on the container 510 by scanning the rectangular annular welding target portion 530 while changing the angle of the laser beam by one continuous laser beam irradiation.
- the plurality of blowing units 210 to 240 supply the shield gas toward the welding target portion 530 of the container 510 of the storage element 500.
- the plurality of blow-out portions 210 to 240 supply shield gas from both sides in the X-axis direction and both sides in the Y-axis direction to the upper surface of the container 510 where the welding target portion 530 is formed.
- the two outlets 210 and 220 are disposed on both sides of the container 510 in the Y-axis direction, and supply shield gas from both sides in the Y-axis direction toward the welding target portion 530 on the upper surface of the container 510.
- the two outlets 230 and 240 are arranged on both sides of the container 510 in the X-axis direction, and supply shield gas from both sides in the X-axis direction toward the welding target portion 530 on the upper surface of the container 510.
- the shield gas is not particularly limited as long as it is an inert gas that can suppress oxidation due to the metal at the welded portion coming into contact with the outside air, and examples thereof include N 2 gas, Ar gas, and He gas.
- Each of the plurality of outlets 210 to 240 has introduction ports 211, 221, 231, and 241 through which shield gas is introduced, and outlets 212, 222, 232, and 242 that blow out the shield gas toward the welding target portion 530.
- Each of the plurality of outlets 210 to 240 rectifies the shield gas while the gas Gin introduced from the inlets 211, 221, 231, and 241 flows through the flow paths to the outlets 212, 222, 232, and 242. It also has a function as a rectifier. That is, the gas Gout blown by the plurality of blowing units 210 to 240 is a gas that is rectified by the plurality of blowing units 210 to 240 and has reduced turbulent flow.
- FIG. 4 is a perspective view showing an external appearance of the energy storage device according to the embodiment.
- the storage element 500 is a secondary battery that can charge and discharge electricity, and more specifically, is a non-aqueous electrolyte secondary battery such as a lithium ion secondary battery.
- the power storage element 500 is applied to an electric vehicle (EV), a plug-in hybrid electric vehicle (PHEV), a hybrid electric vehicle (HEV), or the like.
- the electrical storage element 500 is not limited to a nonaqueous electrolyte secondary battery, A secondary battery other than a nonaqueous electrolyte secondary battery may be sufficient, and a capacitor may be sufficient as it.
- the power storage element 500 includes a container 510 including a main body 511 having a rectangular cylindrical shape and a bottom, and a lid 512 that is a plate-like member that closes an opening of the main body 511, and a positive electrode terminal 521. And a negative electrode terminal 522.
- the lid 512 the plate-like outer edge portion of the lid 512 faces the inner wall surface of the opening of the main body 511 in a state where the opening of the main body 511 is closed.
- the opening of the main body 511 is provided with a stepped portion 511a (see FIG. 6) that supports the lower surface of the lid body 512, and the upper end of the main body 511 and the upper surface of the lid body 512 are at the same position (level). It is comprised so that it may become. That is, the welding target portion 530 is formed on the upper surface of the container 510.
- This container 510 is capable of sealing the inside by accommodating the electrode body and the like and then welding the lid body 512 and the main body 511.
- the material of the lid 512 and the main body 511 is not particularly limited, but is preferably a weldable metal such as stainless steel, aluminum, or aluminum alloy.
- the positive terminal 521 and the negative terminal 522 are attached to the lid 512.
- the positive terminal 521 and the negative terminal 522 are formed to protrude upward from the upper surface of the lid 512.
- the positive electrode terminal 521 and the negative electrode terminal 522 are electrode terminals that are electrically connected to each electrode of an electrode body (not shown) and output electric power stored inside or store electric power from outside. is there.
- power storage element 500 has a long plate shape in which lid body 512 of container 510 has two long sides parallel to the X-axis direction and two short sides parallel to the Y-axis direction. It is a member. Therefore, as shown in FIG. 3, the welding target portion 530 of the container 510 has two long side portions 531 and 532 parallel to the X-axis direction and the Y-axis, similar to the outer shape when the lid 512 is viewed from above. It is a rectangular annular portion having two short side portions 533 and 534 parallel to the direction.
- the blowout part 210 has the blower outlet 212 which faces the long side part 531 and has a width longer than the length of the long side part 531.
- the blowout part 220 has a blower outlet 222 that faces the long side portion 532 and has a width longer than the length of the long side portion 532.
- the two outlets 210 and 220 supply the shielding gas from two different directions to the two long side portions 531 and 532 parallel to the X-axis direction of the welding target portion 530, and the two long side portions. Shield gas is supplied over the whole of 531 and 532.
- the two blowing parts 210 and 220 supply shield gas at substantially the same timing.
- the blowout part 230 has the blower outlet 232 which faces the short side part 533 and has a width longer than the length of the short side part 533.
- the blowing part 240 has a blower outlet 242 that faces the short side portion 534 and has a width longer than the length of the short side portion 534.
- the two outlets 210 and 220 and the two outlets 230 and 240 supply shield gas at substantially the same timing. That is, the four outlets 210, 220, 230, and 240 supply shield gas at substantially the same timing and during substantially the same period.
- the jig 300 is a jig for preventing the shielding gas supplied from a plurality of different directions from colliding with each other. As shown in FIG. 2, the jig 300 is disposed at a predetermined position P ⁇ b> 2 on the upper surface of the container 510 of the power storage element 500 before welding by the welded portion 100 is performed.
- the predetermined position P2 is a position between two welding target parts (in this embodiment, two long side parts 531 and 532) to which shield gas is supplied from two different directions.
- the jig 300 has wall surfaces A11 and A12 facing the two long side portions 531 and 532 in a state where the jig 300 is disposed at a predetermined position P2.
- the wall surfaces A11 and A12 are wall surfaces for shielding the shielding gas.
- the material of the jig 300 is not particularly limited, but since the heat generated by welding can be dissipated, it is preferably a member having thermal conductivity.
- the material of the jig 300 is preferably a member having heat resistance that can withstand the heat generated by welding.
- the jig 300 is preferably a metal such as aluminum, an aluminum alloy, copper, or a copper alloy.
- the plurality of fixing portions 410 to 440 are jigs for positioning the electric storage element 500 with respect to the welding portion 100. Specifically, as shown in FIG. 2, the two fixing portions 410 and 420 face each other in the Y-axis direction, and sandwich the long side surface of the container 510 of the storage element 500 from both sides in the Y-axis direction.
- the power storage element 500 is fixed at a predetermined position in the Y-axis direction.
- the two fixing portions 430 and 440 are opposed to each other in the X-axis direction, and the power is stored at a predetermined position in the X-axis direction by sandwiching the short side surface of the container 510 of the power storage element 500 from both sides in the X-axis direction.
- the element 500 may be located.
- the position of the electricity storage element 500 in the Z-axis direction is determined by placing the electricity storage element 500 on a pedestal (not shown).
- the power storage element 500 is fixed in a state where it is positioned at predetermined positions in the X-axis direction, the Y-axis direction, and the Z-axis direction by the plurality of fixing portions 410 to 440. Even if it replaces and fixes to this electrical storage element 500, the positional relationship of another electrical storage element 500 and the welding part 100 can be made into a fixed relationship.
- FIG. 5A is a perspective view when the jig according to the embodiment is viewed from the upper oblique direction.
- FIG. 5B is a perspective view when the jig according to the embodiment is viewed from a lower oblique direction.
- the jig 300 has a base portion 310 on the negative side in the Z-axis direction and a wall portion 320 protruding from the base portion 310 toward the positive side in the Z-axis direction.
- the base 310 is a part for being arranged on the upper surface of the container 510.
- base 310 has a side surface facing in the Y-axis direction, but may not have a side surface.
- the wall part 320 has wall surfaces A11 and A12.
- the outer shape of the jig 300 may be any shape that does not block the irradiation of the laser beam to the welding target portion when the jig 300 is disposed in the container 510 and the container 510 is welded with the laser beam. .
- the jig 300 has a groove 330 formed on the lower surface of the base 310.
- the groove 330 has a shape for arranging the jig 300 without interfering with the positive electrode terminal 521 and the negative electrode terminal 522 when the jig 300 is arranged on the upper surface of the power storage element 500. Accordingly, since the positive electrode terminal 521 and the negative electrode terminal 522 can be accommodated inside the groove portion 330 of the base portion 310 of the jig 300, the jig is placed with the lower surface of the jig 300 in contact with the upper surface of the container 510. 300 can be arranged at a predetermined position P2 of the container 510.
- the positive electrode terminal 521 and the negative electrode terminal 522 can be accommodated inside the jig 300, it is possible to suppress the shield gas from hitting the positive electrode terminal 521 and the negative electrode terminal 522, and the flow of the shield gas is disturbed. Generation of flow can be reduced.
- the groove portion 330 has side surfaces on both sides in the X axis direction of the positive electrode terminal 521 and the negative electrode terminal 522 (a side surface on the negative side in the X axis direction of the positive electrode terminal 521 and a side surface on the positive side in the X axis direction of the negative electrode terminal 522).
- the size is preferably such that the jig 300 can be positioned in the X-axis direction and the Y-axis direction by contacting the side surfaces on both sides in the axial direction.
- the size of the groove 330 may be such that a predetermined gap is generated between the side surfaces on both sides in the X-axis direction and the side surfaces on both sides in the Y-axis direction of the positive electrode terminal 521 and the negative electrode terminal 522. . Moreover, the depth of the groove part 330 should just be larger than the height of the positive electrode terminal 521 and the negative electrode terminal 522. FIG. In FIG. 6 described later, the predetermined gap is not shown.
- the groove 330 is formed in such a size that the jig 300 is not in contact with the positive electrode terminal 521 and the negative electrode terminal 522 in a state where the jig 300 is disposed at the predetermined position P2 of the container 510, so that the heat of laser welding is increased. And transmission to the negative terminal 522 can be suppressed.
- the jig 300 may be in contact with the positive terminal 521 and the negative terminal 522.
- the measure for preventing the heat of laser welding from being transmitted is, for example, a heat insulating material between the groove portion 330 of the jig 300 and the positive terminal 521 and the negative terminal 522 in a state where the jig 300 is disposed at the predetermined position P2 of the container 510. It is to provide. That is, the jig 300 may have a heat insulating material provided along the surface of the groove 330.
- FIG. 6 is an enlarged view of a part around the jig in the VI-VI sectional view of the manufacturing apparatus in FIG. 1 according to the embodiment.
- the two blow-out portions 210 and 220 that are arranged to face each other in the Y-axis direction have shield gas directed toward the welding target portion 530 while sandwiching the welding target portion 530 in the Y-axis direction.
- the blow-out portion 210 disposed on the negative side in the Y-axis direction of the energy storage device 500 supplies the shielding gas toward the long side portion 531 that is a part of the welding target portion 530 on the negative side in the Y-axis direction.
- the blow-out portion 220 disposed on the Y axis direction plus side of the power storage element 500 supplies a shielding gas toward the long side portion 532 that is a part on the Y axis direction plus side of the welding target portion 530.
- the two blow-out portions 210 and 220 supply a shielding gas to a space at a predetermined interval from the upper surface of the container 510 of the power storage element 500 where the welding target portion 530 is formed.
- the two outlets 210 and 220 are arranged such that the lower ends of the outlets 212 and 222 for blowing out the shielding gas are at the same height as the upper surface of the container 510.
- the flow of gas blown out from the opening diffuses in the width direction of the flow, so that the flow has a width larger than the size of the opening. That is, by arranging the lower ends of the air outlets 212 and 222, which are openings, so as to be the same height as the upper surface of the container 510, the shield gas flows while reliably contacting the upper surface of the container 510. .
- the flow F11 of the shielding gas supplied by the blow-out part 210 hits the wall surface A11 of the wall part 320 of the jig 300 after passing over the long side part 531. Accordingly, the flow direction of the shield gas flow F11 that has flowed along the horizontal direction (Y-axis direction) is changed along the wall surface A11 and is directed upward (Z-axis direction plus side).
- the flow F12 of the shield gas supplied by the blow-out part 220 hits the wall surface A12 of the wall part 320 of the jig 300 after passing over the long side part 532. Accordingly, the flow direction of the shield gas flow F12 flowing along the horizontal direction (Y-axis direction) is changed along the wall surface A12 and is directed upward (Z-axis direction plus side).
- the shield gas blown out from the blow-out portions 210 and 220 flows with the jig 300 changing the flow direction by a predetermined angle (90 degrees in the present embodiment).
- the shielding gas flows along the surface of the jig 300 to at least the end of the jig 300 on the plus side in the Z-axis direction.
- Shield gas blown from two different directions flows in the same direction (Z-axis direction plus side) by changing the flow direction by the jig 300.
- the jig 300 can align the flow directions of the shield gas blown from two different directions, turbulent flow is generated when the shield gas blown from the two different directions collides with each other. Can be effectively suppressed.
- the wall portion 320 of the jig 300 is formed so that the interval between the wall surface A11 and the wall surface A12 becomes shorter toward the plus side in the Z-axis direction. That is, part of the wall surfaces A11 and A12 is inclined with respect to the Y-axis direction in which the shield gas flows. Specifically, a part of the wall surfaces A11 and A12 is inclined with respect to the direction in which the shield gas flows so as to move away from the lid 512 toward the downstream side in the direction in which the shield gas flows.
- the wall surface A11 and the wall surface A12 are formed such that the portion on the plus side in the Z-axis direction is more steeply set than the portion on the minus side in the Z-axis direction.
- the portion is formed so as to be substantially orthogonal to the lid 512. That is, it can be said that the inclined surface is a curved curved surface and is curved so as to be convex inside the wall surface A11 and the wall surface A12.
- the jig 300 is arranged at a predetermined position P2 of the container 510, and the height from the upper surface of the container 510 is the height of the outlets 212, 222, 232, 242 of the plurality of outlets 210-240.
- This is a higher configuration. Thereby, it can suppress that the shielding gas blown out from the blower outlets 212, 222, 232, 242 collides with the welding target portion 530.
- FIG. 7 is a flowchart showing a method for manufacturing the energy storage device according to the embodiment.
- power storage element 500 it is assumed that power storage element 500 is already positioned by a plurality of fixing portions 410 to 440.
- the jig 300 is arranged at a predetermined position P2 on the upper surface of the container 510 of the electricity storage element 500 (S10: arrangement step). Specifically, the jig 300 in which the wall surfaces A11 and A12 are formed is disposed between the two long side portions 531 and 532 to which the container 510 is welded. In the placement step S10, the jig 300 is preferably placed in contact with the two long side portions 531 and 532.
- positioning step S10 may be performed by the manufacturing apparatus 10, and an operator (person) may perform it. For example, if the manufacturing apparatus 10 has a mechanism for moving the jig 300 to the predetermined position P2 of the container 510, the manufacturing apparatus 10 may perform the arrangement step S10.
- the welding target portion 530 is welded while supplying the shielding gas toward the welding target portion 530 (S20: welding step). Specifically, the shielding gas is directed toward the two long side portions 531 and 532 and the two short side portions 533 and 534 of the welding target portion 530 from four different directions by the plurality of blowing portions 210 to 240, respectively. Supply.
- the shield gas supplied to the welding target portion flows along the inclined surface by hitting the inclined surface (curved surface) of the jig 300. And the welding part 100 welds the welding object part 530 in the state by which shield gas was supplied.
- jig 300 having a wall surface formed between two long side portions 531 and 532 to be welded is disposed.
- the two long side portions 531 and 532 are welded while supplying the shielding gas to the two long side portions 531 and 532 from two different directions.
- the flowing direction is changed by A11 and A12. Specifically, the direction is away from the container 510. That is, by arranging the jig 300 between the two long side portions 531 and 532, the two flows F11 and F12 of the shielding gas are suppressed from joining at the two long side portions 531 and 532. . For this reason, the occurrence of turbulent flow due to the shield gas in the two long side portions 531 and 532 can be reduced, and a stable shield gas atmosphere can be formed in the two long side portions 531 and 532. Therefore, the occurrence of poor welding can be reduced.
- the shield gas supplied to the welding target portion 530 flows along an inclined surface that is a part of the wall surfaces A11 and A12 of the jig 300. Therefore, each of the two flows F11 and F12 of the shield gas supplied from two different directions can be easily flown along the wall surfaces A11 and A12 of the jig 300. Therefore, the direction in which each of the two flows F11 and F12 of the shield gas flows can be changed so that turbulent flow does not occur. Thereby, a stable shield gas atmosphere can be formed in the two long side portions 531 and 532, and the occurrence of poor welding can be reduced.
- the jig 300 is arranged in contact with the container 510. For this reason, it can suppress that the two flows F11 and F12 of the shield gas supplied from two directions merge in the two long side parts 531 and 532. Moreover, since the heat generated in the container 510 by welding can be conducted to the jig 300, the two welding target portions can be cooled.
- the two long side portions 531 and 532 are welded by irradiating the laser beam L1 from the predetermined position toward the two long side portions 531 and 532 while changing the irradiation angle.
- the two long side portions 531 and 532 are provided with two outlets 212 and 222 for supplying shield gas from two different directions. According to this, the shield gas can be easily supplied to the two long side portions 531 and 532.
- a part of wall surface A11, A12 inclines with respect to the direction where shield gas flows. In this way, the flow of the shield gas supplied from two different directions is changed along the inclined surface of the jig 300 to change the direction of the flow. The generation of turbulent flow caused by hitting can be reduced. Thereby, a stable shield gas atmosphere can be formed in the two long side portions 531 and 532, and the occurrence of poor welding can be reduced.
- the container 510 includes a main body 511 having a rectangular opening and a long plate-like lid body 512 that closes the opening, and the two welding target portions are rectangular annular shapes of the main body 511 and the lid body 512.
- Two long-side portions 531 and 532 facing each other in the boundary portion (welding target portion 530), and the jig 300 is disposed between the two long-side portions 531 and 532. That is, in the two opposing portions of the rectangular annular boundary portion between the main body 511 and the lid body 512 that are the welding target portions 530, the distance between each other is short and the two welding distances are long portions. Since a jig is disposed between the long side portions 531 and 532, it is possible to suppress the joining of shield gases supplied from two different directions.
- part of the wall surfaces A11 and A12 is inclined with respect to the direction in which the shield gas flows so as to move away from the container 510 toward the downstream side in the direction in which the shield gas flows. That is, since the direction in which the shield gas flows can be changed to a direction away from the container 510, the shield gas supplied from two different directions is prevented from joining in the two long side portions 531 and 532 of the container 510. it can.
- the jig 300 having the wall surfaces A11 and A12 including the surface inclined with respect to the Y-axis direction is employed, but not limited thereto, as shown in FIGS.
- a jig 300a having wall surfaces A23 and A24 including surfaces inclined with respect to the X-axis direction may be employed as the wall surfaces A21 and A22 including surfaces inclined with respect to the Y-axis direction.
- FIG. 8 is a diagram showing an external appearance of a storage element manufacturing apparatus according to a modification.
- FIG. 9 is an enlarged view of a part around the jig in the IX-IX sectional view of the manufacturing apparatus in FIG.
- FIG. 10 is an enlarged view of a part around the jig in the XX sectional view of the manufacturing apparatus in FIG. Since the configuration other than the jig 300a of the manufacturing apparatus 10a in FIG. 8 is the same as the configuration other than the jig 300 of the manufacturing apparatus 10 described above, the same reference numerals are given and the description is omitted.
- the jig 300a is formed so that the interval between the wall surface A21 and the wall surface A22 becomes shorter toward the plus side in the Z-axis direction. That is, the jig 300a has a surface inclined with respect to the Y-axis direction in which the shield gas flows. As shown in FIG. 10, the jig 300a is formed so that the interval between the wall surface A23 and the wall surface A24 becomes shorter toward the Z axis plus side. That is, the jig 300a has a surface inclined with respect to the X-axis direction through which the shield gas flows.
- the flow F21 of the shield gas supplied by the blow-out part 210 hits the wall surface A21 of the jig 300a after passing over the long side portion 531.
- the flow direction of the shield gas flow F21 flowing along the horizontal direction (Y-axis direction) is changed along the wall surface A21 and is directed upward (Z-axis direction plus side).
- the shield gas flow F ⁇ b> 22 supplied by the blow-out unit 220 hits the wall surface A ⁇ b> 22 of the jig 300 a after passing over the long side portion 532.
- the flow direction of the shield gas flow F22 flowing along the horizontal direction (Y-axis direction) is changed along the wall surface A22, and is directed upward (Z-axis direction plus side).
- the flow F23 of the shield gas supplied by the blowing unit 230 hits the wall surface A23 of the jig 300a after passing over the short side portion 533.
- the shield gas flow F23 flowing along the horizontal direction (X-axis direction) is directed upward (Z-axis direction plus side) along the wall surface A23.
- the flow F24 of the shielding gas supplied by the blowing part 240 hits the wall surface A24 of the jig 300a after passing over the short side portion 534.
- the shield gas flow F24 flowing along the horizontal direction (X-axis direction) is directed upward (Z-axis direction plus side) along the wall surface A24.
- the shielding gas blown out from the blowing portions 210, 220, 230, and 240 flows with the jig 300a changing the flowing direction by a predetermined angle (90 degrees in the present embodiment).
- the shield gas flows along the surface of the jig 300a to at least the end of the jig 300a on the plus side in the Z-axis direction.
- Shield gas blown from four different directions flows in the same direction (Z-axis direction plus side) by changing the flow direction by the jig 300a.
- the jig 300a can align the flow directions of the shield gas blown from four different directions, the shield gas blown from the four different directions collides to generate turbulent flow. Can be effectively suppressed.
- the flow of the shield gas supplied from the four different directions can be directed upward. For this reason, it can suppress that shield gas joins in the welding object part 530, and can reduce that a turbulent flow generate
- the method for manufacturing the energy storage device may further include a cooling step for cooling the jigs 300 and 300a.
- the heat transfer characteristics may be improved by providing irregularities on the wall surface in the Y-axis direction of the jig so that heat exchange with the shielding gas is further performed, and the jig may be cooled by the shielding gas.
- a jig having improved heat transfer characteristics by providing a groove along the direction in which the shield gas flows may be employed.
- the cooling step may be performed when the welding step is performed, or may be performed at another timing.
- the heat generated by the welding conducted to the jig can be released to the outside, and the high temperature can be suppressed by repeatedly using the jig. .
- the container of an electrical storage element it can suppress that a high temperature jig
- tool can be extended.
- the jig 300 is formed with the groove portion 330 including both the positive electrode terminal 521 and the negative electrode terminal 522 in a state where the jig 300 is disposed at the predetermined position P2 of the container 510.
- the groove portion 330 is formed.
- the present invention is not limited to this, and two recesses containing each of the positive electrode terminal 521 and the negative electrode terminal 522 may be formed.
- a groove portion or a concave portion for enclosing the portion may be formed.
- the welding target portion 530 to be welded of the container 510 of the power storage element 500 is a boundary portion between the main body 511 and the lid 512.
- the present invention is not limited to this, and the container is in other parts.
- the storage element manufacturing method and storage element manufacturing apparatus of the present invention can be applied to other parts.
- the present invention can be applied when welding is performed to form the side surface of the container, and can also be applied when welding is performed to form the bottom surface of the container.
- the four blow-out portions 210 to 240 supply the shielding gas to the four portions 531 to 534 of the welding target portion 530, respectively, so that the atmosphere of the shielding gas is given to the welding target portion 530.
- the shield gas may not be supplied by the four outlets 210 to 240.
- only the two blowing parts 210 and 220 may be configured to supply the shielding gas to the two long side parts 531 and 532 of the welding target part 530. That is, in the welding step, the two welding target portions may be welded while supplying the shielding gas from the two different directions to the two welding target portions corresponding to the two welding target portions.
- the two long side portions 531 and 532 of the welding target portion 530 are parallel at a predetermined interval, but may not be parallel as long as they are separated by a predetermined interval.
- the welding object part 530 is substantially rectangular shape, not only this but oval shape, elliptical shape, and circular shape may be sufficient.
- the cover body 512 is arrange
- the welding is not limited to this.
- the lid may be disposed on the upper end of the main body, and may be applied to a container that is welded by irradiating a laser beam from the horizontal direction (X-axis direction and Y-axis direction).
- the laser beam is scanned from a plurality of directions by providing a plurality of welded portions that irradiate the laser beam on the lateral side of the container.
- the laser beam scanning method may not be used, and the method can also be applied to a method of welding by moving the laser head that irradiates the laser beam, and welding is performed by moving the pedestal to which the container is fixed. It can also be applied to the method.
- a mirror for reflecting the laser beam irradiated from above in the horizontal direction is provided on the entire side of the lid of the container, the laser beam irradiation method from above in the above embodiment is also possible. realizable.
- the wall surfaces A11, A12, A21 to A24 of the jigs 300 and 300a are inclined with respect to the flow direction of the shield gas, but may not be inclined.
- a jig having a wall surface perpendicular to the flow direction of the shield gas may be used as long as the shield gas supplied from different directions can be prevented from joining at the welding target portion.
- the plurality of blow-out portions 210 to 240 are directed from both sides in the X-axis direction and both sides in the Y-axis direction toward the welding target portion 530 of the container 510 of the power storage element 500.
- the shielding gas is supplied in the direction along the direction or the Y-axis direction, the shielding gas may not be supplied in the direction along the X-axis direction or the Y-axis direction.
- the plurality of blow-out portions 210 to 240 supply shield gas from the positions on both sides in the X-axis direction, both sides in the Y-axis direction, and on the plus side in the Z-axis direction (that is, obliquely upward) toward the welding target portion 530. May be. Further, the plurality of blow-out portions 210 to 240 supply shield gas from, for example, both sides in the X-axis direction, both sides in the Y-axis direction, and the negative side in the Z-axis direction (that is, obliquely downward) toward the welding target portion 530. May be.
- two of the plurality of blowing portions 210 to 240 are, for example, two blowing portions 210 and 220 that are obliquely crossed with respect to the direction in which the long side portions 531 and 532 of the welding target portion 530 extend (oblique oblique lateral direction). Shielding gas may be supplied.
- the remaining two blowing portions 230 and 240 of the plurality of blowing portions 210 to 240 are, for example, directions that obliquely intersect with the direction in which the short side portions 533 and 534 of the welding target portion 530 extend.
- the shielding gas may be supplied from (obliquely lateral direction).
- the blow-out portions 210 to 240 supply the shielding gas from the obliquely upward, obliquely downward, or obliquely lateral directions to the welding target portion 530, the jigs 300 and 300a are viewed from different directions. It can suppress that the shield gas supplied merges in the welding target part 530.
- tool 300,300a is a solid member, However, If it is a member which has a surface on the both sides of a Y-axis direction, it may not be a solid member. And the member in which the two walls which have the wall surface corresponding to each of the two long side parts 531 and 532 of the welding object part 530 may be formed.
- the jigs 300 and 300a are configured to cover the positive electrode terminal 521 and the negative electrode terminal 522 of the power storage element 500, but are not limited thereto.
- the positive electrode terminal 521a and the negative electrode If the jig is configured to cover the terminal 522a, the jig interferes with the welding target portion 530 and laser welding cannot be performed.
- FIG. 11 is a perspective view showing the appearance of a state in which the jig according to the modification is disposed at a predetermined position of the power storage element.
- the present invention is useful as a method for manufacturing an electricity storage element that can form a stable shield gas atmosphere in a portion to be welded and can reduce the occurrence of poor welding.
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Abstract
Description
まず、蓄電素子500の製造装置10について、説明する。
100 溶接部
210、220、230、240 吹出部
211、221、231、241 導入口
212、222、232、242 吹出口
300、300a、300b 治具
310、310b 基部
320 壁部
330、330b 溝部
410、420、430、440 固定部
500、500a 蓄電素子
510 容器
511 本体
511a 段差部
512 蓋体
521、521a 正極端子
522、522a 負極端子
530 溶接対象部分
531、532 長辺部分
533、534 短辺部分
A11、A12、A21~A24、A31、A32 壁面
F11、F12、F21、F22 シールドガスの流れ
P1、P2 所定の位置
Claims (9)
- 蓄電素子の容器に対して溶接を行う蓄電素子の製造方法であって、
前記溶接が行われる2つの溶接対象部分の間に、壁面が形成された治具を配置する配置ステップと、
前記2つの溶接対象部分に対応して、2つの異なる方向からシールドガスを前記2つの溶接対象部分に供給しながら、前記2つの溶接対象部分を溶接する溶接ステップと、を含む
蓄電素子の製造方法。 - 前記溶接ステップでは、前記溶接対象部分に供給されたシールドガスが前記壁面の少なくとも一部である傾斜面に沿って流れる
請求項1に記載の蓄電素子の製造方法。 - 前記配置ステップでは、前記治具を前記容器に当接させて配置する
請求項1または2に記載の蓄電素子の製造方法。 - さらに、
前記治具を冷却する冷却ステップを含む
請求項1から3のいずれか1項に記載の蓄電素子の製造方法。 - 前記溶接ステップでは、所定の位置から前記2つの溶接対象部分に向けて、照射角度を変えながらレーザビームを照射して、前記2つの溶接対象部分を溶接する
請求項1から4のいずれか1項に記載の蓄電素子の製造方法。 - 蓄電素子の容器に対して溶接を行うための蓄電素子の製造装置であって、
前記溶接が行われる2つの溶接対象部分であって、2つの異なる方向からシールドガスが供給される前記2つの溶接対象部分の間に配置される壁面が形成された治具を備える
蓄電素子の製造装置。 - さらに、
前記2つの溶接対象部分に、前記2つの異なる方向からシールドガスを供給する2つの吹出口を備える
請求項6に記載の蓄電素子の製造装置。 - 前記壁面の少なくとも一部は、前記シールドガスが流れる方向に対して傾斜している
請求項6または7に記載の蓄電素子の製造装置。 - 前記容器は、矩形状の開口を有する本体と、前記開口を塞ぐ長尺板状の蓋体と、を備え、
前記2つの溶接対象部分は、前記本体と前記蓋体との矩形環状の境界部分のうちの互いに対向する2つの長辺部分であり、
前記治具は、前記2つの長辺部分の間に配置され、
前記壁面の少なくとも一部は、前記シールドガスが流れる方向に対して、当該シールドガスが流れる方向の下流側に向かうほど前記容器から遠ざかるように傾斜している
請求項6から8のいずれか1項に記載の蓄電素子の製造装置。
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DE112016001546.1T DE112016001546T5 (de) | 2015-03-31 | 2016-03-29 | Verfahren zur herstellung eines energiespeichergeräts und vorrichtung zur herstellung eines energiespeichergeräts |
JP2017510050A JP6819574B2 (ja) | 2015-03-31 | 2016-03-29 | 蓄電素子の製造方法及び蓄電素子の製造装置 |
CN201680014370.8A CN107431148B (zh) | 2015-03-31 | 2016-03-29 | 蓄电元件的制造方法以及蓄电元件的制造装置 |
US15/546,600 US10637010B2 (en) | 2015-03-31 | 2016-03-29 | Method for manufacturing energy storage device and apparatus for manufacturing energy storage device |
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JP2020064747A (ja) * | 2018-10-16 | 2020-04-23 | トヨタ自動車株式会社 | 電池の製造方法 |
JP2020149814A (ja) * | 2019-03-12 | 2020-09-17 | トヨタ自動車株式会社 | 電池の製造方法 |
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JP2018113160A (ja) * | 2017-01-11 | 2018-07-19 | トヨタ自動車株式会社 | 電池ケースの封止方法および密閉型電池の製造方法 |
JP2020064747A (ja) * | 2018-10-16 | 2020-04-23 | トヨタ自動車株式会社 | 電池の製造方法 |
JP7100802B2 (ja) | 2018-10-16 | 2022-07-14 | トヨタ自動車株式会社 | 電池の製造方法 |
JP2020149814A (ja) * | 2019-03-12 | 2020-09-17 | トヨタ自動車株式会社 | 電池の製造方法 |
JP7194333B2 (ja) | 2019-03-12 | 2022-12-22 | トヨタ自動車株式会社 | 電池の製造方法 |
Also Published As
Publication number | Publication date |
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US10637010B2 (en) | 2020-04-28 |
CN107431148B (zh) | 2020-08-25 |
JP6819574B2 (ja) | 2021-01-27 |
CN107431148A (zh) | 2017-12-01 |
DE112016001546T5 (de) | 2018-01-04 |
JPWO2016158998A1 (ja) | 2018-01-25 |
US20180006276A1 (en) | 2018-01-04 |
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