WO2007032273A1 - Module de dispositif electrique et son procede de production - Google Patents
Module de dispositif electrique et son procede de production Download PDFInfo
- Publication number
- WO2007032273A1 WO2007032273A1 PCT/JP2006/317850 JP2006317850W WO2007032273A1 WO 2007032273 A1 WO2007032273 A1 WO 2007032273A1 JP 2006317850 W JP2006317850 W JP 2006317850W WO 2007032273 A1 WO2007032273 A1 WO 2007032273A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- electrode tabs
- film
- device module
- electrode
- welding
- Prior art date
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 13
- 238000001816 cooling Methods 0.000 claims abstract description 66
- 238000003466 welding Methods 0.000 claims abstract description 36
- 238000000034 method Methods 0.000 claims abstract description 11
- 239000007769 metal material Substances 0.000 claims description 8
- 238000004806 packaging method and process Methods 0.000 claims description 4
- 239000011261 inert gas Substances 0.000 claims description 3
- 230000000712 assembly Effects 0.000 claims 1
- 238000000429 assembly Methods 0.000 claims 1
- 238000006073 displacement reaction Methods 0.000 claims 1
- 239000005001 laminate film Substances 0.000 description 7
- 239000007789 gas Substances 0.000 description 6
- 239000003990 capacitor Substances 0.000 description 5
- 229910052744 lithium Inorganic materials 0.000 description 5
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000002844 melting Methods 0.000 description 4
- 230000008018 melting Effects 0.000 description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 2
- 241001128518 Tabris Species 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910001416 lithium ion Inorganic materials 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- OJIJEKBXJYRIBZ-UHFFFAOYSA-N cadmium nickel Chemical compound [Ni].[Cd] OJIJEKBXJYRIBZ-UHFFFAOYSA-N 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000011889 copper foil Substances 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 229910052743 krypton Inorganic materials 0.000 description 1
- DNNSSWSSYDEUBZ-UHFFFAOYSA-N krypton atom Chemical compound [Kr] DNNSSWSSYDEUBZ-UHFFFAOYSA-N 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 229910003002 lithium salt Inorganic materials 0.000 description 1
- 159000000002 lithium salts Chemical class 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052987 metal hydride Inorganic materials 0.000 description 1
- 229910052754 neon Inorganic materials 0.000 description 1
- GKAOGPIIYCISHV-UHFFFAOYSA-N neon atom Chemical compound [Ne] GKAOGPIIYCISHV-UHFFFAOYSA-N 0.000 description 1
- -1 nickel metal hydride Chemical class 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000007774 positive electrode material Substances 0.000 description 1
- 229910052704 radon Inorganic materials 0.000 description 1
- SYUHGPGVQRZVTB-UHFFFAOYSA-N radon atom Chemical compound [Rn] SYUHGPGVQRZVTB-UHFFFAOYSA-N 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910052724 xenon Inorganic materials 0.000 description 1
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- H01G11/10—Multiple hybrid or EDL capacitors, e.g. arrays or modules
-
- 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
- H01G11/14—Arrangements or processes for adjusting or protecting hybrid or EDL capacitors
- H01G11/18—Arrangements or processes for adjusting or protecting hybrid or EDL capacitors against thermal overloads, e.g. heating, cooling or ventilating
-
- 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
- H01G11/74—Terminals, e.g. extensions of current collectors
-
- 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
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
- H01M50/505—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing comprising a single busbar
-
- 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
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
- H01M50/514—Methods for interconnecting adjacent batteries or cells
- H01M50/516—Methods for interconnecting adjacent batteries or cells by welding, soldering or brazing
-
- 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
- H01G11/82—Fixing or assembling a capacitive element in a housing, e.g. mounting electrodes, current collectors or terminals in containers or encapsulations
-
- 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
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/531—Electrode connections inside a battery casing
- H01M50/534—Electrode connections inside a battery casing characterised by the material of the leads or tabs
-
- 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
- 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 an electric device module in which a predetermined number of electric devices such as film-clad batteries are housed in a case and a method for manufacturing the same.
- FIG. 1 is an exploded perspective view of a battery module constituting the assembled battery.
- FIG. 2 is a perspective view showing an entire assembled battery constructed by stacking the battery modules of FIG.
- FIG. 3 is a cross-sectional view showing a connection portion between electrode tabs drawn from each battery cell.
- the assembled battery 180 includes a plurality of battery modules 150 assembled in a stacked state.
- Each battery module 150 contains two battery cells 120 each.
- Each battery cell 120 includes, for example, a lithium secondary battery.
- a battery element and an electrolytic solution are accommodated in a package that also has a laminating film force.
- a sheet-like electrode tab 125 extends from the outer peripheral portion of the film package so that a voltage can be taken out from the electrode tab 125.
- the two electrode tabs 125 are shown with no particular distinction. One is a positive electrode tab, and the other is a negative electrode tab.
- the two battery snares 120 are accommodated in a case 130 constituted by a lower case 135 and two lid members 136A and 136B.
- a bus bar 115 is disposed between the two battery cells 120.
- the electrode tabs 125 extending from each battery cell force are connected to each other on the bus bar 115 as shown in FIG.
- laser welding or ultrasonic welding can be used for the connection between the two electrode tabs 125 and the bus bar 115.
- the two battery cells 120 are arranged in the lower case. Since it is possible to weld the electrode tabs in a state of being arranged in a plane on 135, the workability of welding can be improved.
- a technique for arranging a plurality of battery cells in a plane to constitute one module is also disclosed in, for example, Japanese Patent Application Laid-Open No. 2005-116456.
- the length Lt (see FIG. 3) of the electrode tab 125 has been set to be long. In other words, by increasing the distance between the position where welding is performed (welded part) and the base of the tab, the temperature rise at the base of the tab is suppressed to prevent melting of the laminate film.
- the power for explaining the problems of the prior art using the battery cell and the battery module using the battery cell as an example.
- the above problems do not occur only in the battery.
- the same problem may occur in an electric device having a capacitor or the like instead of a battery element.
- the present invention has been made in view of the above-described problems, and an object of the present invention is to provide an electrical connection in a configuration in which electrode tabs from which a film-clad electrical device force is also drawn are joined by welding. An object of the present invention is to provide an electric device module and a method for manufacturing the same that can reduce the size of the entire device module.
- the method for producing an electric device module of the present invention comprises a film packaging body strength sheet-shaped electrode tab having two or more film-clad electrical devices with bow I cut out, and the film-clad packaging.
- a case for accommodating an electrical device, and adjacent to each other A method of manufacturing an electrical device module in which the electrode tabs of a film-clad electrical device are joined together by welding, wherein each of the film-clad electrical devices is disposed in the case, and the electrode tabs are partially connected to each other.
- the cooling air supply position may be a region between the base portion of the electrode tab and the welded portion. Further, in the case where the overlapping portion of the electrode tabs is welded to a nos bar having a metal material force, the welding step may include supplying cooling air to the bus bar. ⁇ .
- the cooling air may be simple air, but is preferably an inert gas.
- the electrical device module of the present invention has two or more film-clad electrical devices in which sheet-like electrode tabs are drawn out from the film package, and a case that accommodates the film-clad electrical device, An electric device module in which the electrode tabs of the film-covered electrical devices adjacent to each other are joined by welding, and the case is cooled to a position between the film-covered electrical devices adjacent to each other.
- the cooling structure portion is provided with a hole for supplying cooling air to the vicinity of the overlapping portion of the electrode tabs.
- the cooling structure portion has one opening. It is preferable that a through hole is formed in the upper surface and the other opening is located on the back side of the case, and cooling air is sent to the hole through the through hole. Further, a bus bar made of a metal material force may be arranged between the overlapping portion of the electrode tabs and the upper surface of the cooling structure portion. Cold The rejection structure portion may be a member having a metallic material force provided separately from the case.
- FIG. 1 is an exploded perspective view showing a configuration example of a conventional battery module.
- FIG. 2 is a perspective view showing an entire assembled battery formed by stacking battery modules.
- FIG. 3 is a cross-sectional view showing a connection portion between electrode tabs drawn from each battery cell.
- FIG. 4 is an exploded perspective view of a battery module according to an embodiment of the present invention.
- FIG. 5 is a perspective view showing a battery cell in a single state.
- FIG. 6 is a perspective view showing a configuration of a cooling structure provided in a part of the case.
- FIG. 7 is a cross-sectional view showing a configuration around a cooling structure when welding is performed.
- FIG. 8 is a perspective view showing only the through hole of the cooling structure portion of FIG.
- FIG. 9A is a perspective view showing another form of the cooling structure.
- FIG. 9B is a perspective view showing another form of the cooling structure.
- FIG. 4 is an exploded perspective view of the battery module of the present embodiment.
- FIG. 5 is a perspective view showing the battery cell in a single state.
- the illustration of the lid member (corresponding to the lid members 136A and 136B in FIG. 1) is omitted.
- the battery module 50 of the present embodiment is mainly characterized in that a cooling structure 31 is provided at the center of the lower case 35, and other structural parts. Is configured in the same manner as the conventional battery module shown in FIG. Therefore, structural parts having the same function are indicated by reference numerals corresponding to those in FIGS.
- the battery cell 20 is a conventional general film-clad battery. As shown in FIG. 5, a thin battery element 22 that outputs a predetermined electromotive force (eg, 3.6 V) is sealed by a film package 24. It is sealed. Laminate films are fused to the outer periphery of film packaging 24 A sealed portion 23 is formed. From each short side of the sealing portion 23, a sheet-like electrode tab 25a for a positive electrode and an electrode tab 25b for a negative electrode both extend.
- a predetermined electromotive force eg, 3.6 V
- each electrode tab has a thickness of, for example, about ⁇ to 300 / ⁇ m and is electrically connected to the internal battery element 22 respectively.
- the material of the electrode tab 25a for the positive electrode either aluminum, an aluminum alloy, or an anodized or resin-coated material (referred to as “aluminum-based material”) is selected.
- the electrode tab 25b for the negative electrode may be made of copper, a copper alloy, or a metal plating (for example, nickel plating) applied to them. ) Is selected.
- the battery module 50 of the present embodiment is configured to accommodate two battery cells 20 in one case 30 (only the lower case 35 is shown in FIG. 4). .
- the battery modules 50 thus modularized are stacked in a plurality of stages, and the modules are electrically connected to form a final assembled battery.
- Both the lower case 35 and the lid member are made of a resin material.
- the lower case 35 has two accommodating portions 39A and 39B in which one battery cell 20 is disposed, and one groove 37 is formed between the accommodating portions 39A and 39B.
- the cooling structure 31 is formed in the groove 37.
- the bus bar 15 is arranged on the upper surface of the cooling structure 31 as described later.
- the nose bar 15 is made of a conductive material (metal material), and functions as a voltage extraction terminal corresponding to each battery cell 20 by connecting the electrode tabs 25a and 25b. That is, although not shown in the figure, by connecting a predetermined electric circuit to the bus bar 15, the voltage of each battery cell 20 is managed, or when an abnormality occurs in one battery cell 20. It is possible to install a fuse so that the circuit of the entire assembled battery is not damaged.
- the cooling structure 31 is a structure that protrudes upward from the bottom surface of the groove 37. More specifically, the cooling structure 31 has a structure as shown in FIGS. ing. That is, the cooling structure Two inclined surfaces 32 (see FIG. 6) are formed on the outer peripheral surface of the structure portion 31, and each of the inclined surfaces 32 has a plurality of holes 32. The hole 33 functions as an outlet for cooling air, as will be described later. On the upper surface of the cooling structure 31, there are 34 long openings.
- both the hole 32 and the opening 34 communicate with a through hole 38 formed inside the cooling structure 31.
- the through hole 38 is a through hole whose upper side opens as an opening 34 and whose lower side opens as an opening 38a.
- Cooling air can be introduced uniformly from 38a, and as a result, variation in the amount of cooling air delivered from each hole 33 is reduced.
- the cooling structure 31 has a force S that can be variously changed in addition to such a structure, which will be described later with reference to other drawings.
- the cooling structure 31 may be configured as a separate member from the lower case 35, or may be configured as an integral member. When configured as a separate member, the cooling structure 31 can be made of a metal material, for example. In order to attach such a cooling structure 31 to the case, for example, an opening (not shown) is provided in the groove 37 of the lower case 35, and the cooling structure 31 is attached to this opening. Good.
- the bus bar 15 is arranged on the upper surface of the cooling structure 31, the battery cells 20 are accommodated in the housing portions 39A, 39B of the lower case 35 so that the tip sides of the electrode tabs 25a, 25b overlap each other. Place each of them. Further, by using the holding jig 90 to hold the electrode tab 25a from the upper surface side, the two electrode tabs and the bus bar can be in good contact with each other.
- an adhesive may be used, or a screw may be used.
- the holding jig 90 is not particularly limited, but is preferably made of a good heat conductor. As a result, the heat applied to the electrode tab during welding is satisfactorily absorbed by the holding jig 90, and as a result, the temperature rise of the electrode tab is suppressed.
- the laser beam is irradiated from the upper surface side of the electrode tabs, and the electrode tabs and the electrodes Join the tab and busbar.
- cooling air is sent into the through-hole 38, and a part of the air is passed through the hole 33 to the lower surfaces of the electrode tabs 25a and 25b (specifically, the region between the welded portion and the base portion). Being able to be sprayed.
- the electrode tab is cooled, and the temperature rise at the base of the electrode tabs 25a and 25b is suppressed.
- the remaining part of the cooling air is blown to the lower surface of the bus bar 15 exposed at the opening 34, so that the bus bar 15 and the electrode tab arranged thereon are also the same. It will be P
- the cooling air may be mere air, but inert gas (for example, helium gas, neon gas, argon gas, krypton gas, xenon) so as not to affect the focusing of the laser beam. Gas or radon gas). Further, the timing for starting the supply of the cooling air may be simultaneous with the irradiation of the laser beam, but is not limited thereto. Even after the start of irradiation, if the temperature of the electrode tab does not rise that much, it is considered that the problem of melting the laminate film does not occur.Therefore, supply of cooling air is started after a predetermined time has elapsed from the start of irradiation. You can do it!
- inert gas for example, helium gas, neon gas, argon gas, krypton gas, xenon
- the electrode tabs 25a and 25b are electrically connected to each other, and the electrode tab and the bus bar 15 are electrically connected to each other. Further, the subsequent steps until the battery module 50 is completed (for example, the lid member attaching step) can be performed in the same manner as before.
- the present invention can be variously modified in addition to the above.
- the electrode tabs are connected to each other using laser welding.
- the present invention is not limited to laser welding, but a welding method (accurately) that raises the temperature of the electrode tabs during welding. This also covers welding methods in which the temperature of the electrode tab rises to such an extent that a problem of melting of the laminate film can occur.
- the cooling structure may be configured as shown in FIGS. 9A and 9B, for example.
- the cooling structure 31A shown in FIG. 9A is formed with an introduction hole 38A extending in the lateral direction instead of the through hole 38 (see FIG. 7).
- the introduction hole 38A is opened only on one of the side surfaces of the cooling structure 31A, and this opening force cooling air is sent.
- the sent cooling air is blown out through the holes 33 as described above.
- a cooling structure 31B shown in FIG. 9B is formed by forming a single elongated hole 33A in place of the plurality of holes 33 (see FIG. 6). Even if the cooling structures 31 A and 3 IB are configured in this way, it is possible to cool the electrode tabs by sending cooling air from the holes 33 and 33 A during welding. The same effect as the form can be obtained.
- the cooling air is supplied from the cooling structure 31 provided in the case.
- the present invention is not limited to this, and for example, the cooling air supply mechanism is provided on the holding jig 90 side. May be provided to cool the electrode tab during welding.
- the battery element 22 used in the battery cell 20 is
- Lithium-ion secondary batteries and more specifically, lithium 'positive electrode plates with positive electrode active materials such as manganese composite oxide and lithium cobaltate coated on both sides of aluminum foil, etc .; and lithium-doped' undoped ' A negative electrode plate coated with a possible carbon material on both sides, such as copper foil, may be opposed to each other through a separator and impregnated with an electrolyte containing a lithium salt.
- battery elements are battery elements of other types of chemical batteries such as nickel metal hydride batteries, nickel cadmium batteries, lithium metal primary batteries or secondary batteries, and lithium polymer batteries. Also good.
- the battery element is not limited to a laminated type, and a positive electrode side active electrode is obtained by stacking a belt-like positive electrode side active electrode and a negative electrode side active electrode through a separator, and then compressing the same into a flat shape. And a negative electrode having a structure in which the negative electrode side active electrode is laminated alternately.
- an electric device element an element that stores and outputs (charges and discharges) electric energy, such as a capacitor element exemplified by a capacitor such as an electric double layer capacitor or an electrolytic capacitor, is used. Also good.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
L'invention concerne un procédé ou analogue permettant de produire un module de pile capable de réduire l'ensemble du module en une structure dans laquelle des languettes d'électrode sortant des piles sont jointes par soudage. Le module de pile (50) présente des piles (20) qui ont des languettes d'électrode sous forme de feuille (25a, 25b) sortant d'emballages en film, et des boîtiers logeant les piles. Le procédé de production du module de pile (50) consiste à disposer chaque pile (20) dans chaque boîtier de façon que les languettes d'électrode (25a, 25b) se chevauchent, et à souder ensemble lesdites languettes tout en les refroidissant en leur amenant de l'air froid.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005265284 | 2005-09-13 | ||
JP2005-265284 | 2005-09-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2007032273A1 true WO2007032273A1 (fr) | 2007-03-22 |
Family
ID=37864867
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2006/317850 WO2007032273A1 (fr) | 2005-09-13 | 2006-09-08 | Module de dispositif electrique et son procede de production |
Country Status (1)
Country | Link |
---|---|
WO (1) | WO2007032273A1 (fr) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013001595A1 (fr) * | 2011-06-27 | 2013-01-03 | トヨタ自動車株式会社 | Unité de logement d'élément capacitif |
EP2544263A1 (fr) * | 2011-07-06 | 2013-01-09 | Samsung SDI Co., Ltd. | Bloc-batteries |
JP2013218935A (ja) * | 2012-04-10 | 2013-10-24 | Denso Corp | 電池パックの熱伝導構造 |
EP3454404A1 (fr) * | 2017-09-12 | 2019-03-13 | Robert Bosch GmbH | Méthode pour la formation d'un empilement d'électrodes |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003187781A (ja) * | 2001-12-21 | 2003-07-04 | Sony Corp | 電池及びその製造方法、並びに電池モジュール及びその製造方法 |
JP2004071179A (ja) * | 2002-08-01 | 2004-03-04 | Nissan Motor Co Ltd | ラミネート外装電池、組電池および組電池モジュール |
JP2004103258A (ja) * | 2002-09-04 | 2004-04-02 | Nissan Motor Co Ltd | 組電池 |
JP2004174529A (ja) * | 2002-11-26 | 2004-06-24 | Suzuki Motor Corp | レーザ溶接装置 |
JP2005108750A (ja) * | 2003-10-01 | 2005-04-21 | Nissan Motor Co Ltd | 電池モジュール、および、組電池 |
JP2005138126A (ja) * | 2003-11-05 | 2005-06-02 | Mitsubishi Heavy Ind Ltd | 溶接システム |
-
2006
- 2006-09-08 WO PCT/JP2006/317850 patent/WO2007032273A1/fr active Application Filing
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003187781A (ja) * | 2001-12-21 | 2003-07-04 | Sony Corp | 電池及びその製造方法、並びに電池モジュール及びその製造方法 |
JP2004071179A (ja) * | 2002-08-01 | 2004-03-04 | Nissan Motor Co Ltd | ラミネート外装電池、組電池および組電池モジュール |
JP2004103258A (ja) * | 2002-09-04 | 2004-04-02 | Nissan Motor Co Ltd | 組電池 |
JP2004174529A (ja) * | 2002-11-26 | 2004-06-24 | Suzuki Motor Corp | レーザ溶接装置 |
JP2005108750A (ja) * | 2003-10-01 | 2005-04-21 | Nissan Motor Co Ltd | 電池モジュール、および、組電池 |
JP2005138126A (ja) * | 2003-11-05 | 2005-06-02 | Mitsubishi Heavy Ind Ltd | 溶接システム |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013001595A1 (fr) * | 2011-06-27 | 2013-01-03 | トヨタ自動車株式会社 | Unité de logement d'élément capacitif |
CN103608880A (zh) * | 2011-06-27 | 2014-02-26 | 丰田自动车株式会社 | 电容元件收置单元 |
JPWO2013001595A1 (ja) * | 2011-06-27 | 2015-02-23 | トヨタ自動車株式会社 | 容量素子収納ユニット |
EP2725594A4 (fr) * | 2011-06-27 | 2015-03-11 | Toyota Motor Co Ltd | Unité de logement d'élément capacitif |
EP2544263A1 (fr) * | 2011-07-06 | 2013-01-09 | Samsung SDI Co., Ltd. | Bloc-batteries |
US9017836B2 (en) | 2011-07-06 | 2015-04-28 | Samsung Sdi Co., Ltd. | Battery pack |
JP2013218935A (ja) * | 2012-04-10 | 2013-10-24 | Denso Corp | 電池パックの熱伝導構造 |
EP3454404A1 (fr) * | 2017-09-12 | 2019-03-13 | Robert Bosch GmbH | Méthode pour la formation d'un empilement d'électrodes |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US7776466B2 (en) | Structure of layering unit cells for high power lithium polymer battery | |
JP6443951B2 (ja) | 電池の製造方法 | |
US7732092B2 (en) | Case for high-power rechargeable lithium battery | |
JP5105390B2 (ja) | 大電流放電用薄形二次電池及び電池モジュール | |
JP6743312B2 (ja) | 保護回路モジュールを備えたパウチ型二次電池パック | |
JP4977615B2 (ja) | フィルム外装電気デバイス収納システム | |
JP4977475B2 (ja) | フィルム外装電気デバイス用ケース | |
CN114223096A (zh) | 二次电池及其制造方法 | |
JP6743664B2 (ja) | 蓄電装置及び蓄電装置の製造方法 | |
JP2006040901A (ja) | 二次電池 | |
TW201203655A (en) | Battery and method for producing same | |
JP2004071290A (ja) | 自動車用電池 | |
JP2008288186A (ja) | パウチ型二次電池 | |
JP7038964B2 (ja) | 電極タブの溶接特性を改善した電極及びこれを含む二次電池 | |
US20200373544A1 (en) | Battery pack and manufacturing method therefor | |
WO2006059434A1 (fr) | Ensemble d’appareils electriques | |
US10749204B2 (en) | Electric power storage device and method of manufacturing the same | |
JP2008004274A (ja) | 蓄電素子 | |
KR101297858B1 (ko) | 다공성 구조의 이차전지 및 이를 포함하는 전지모듈 | |
US20200161598A1 (en) | Cylindrical secondary battery module | |
CN114204096A (zh) | 二次电池 | |
CN114223088A (zh) | 二次电池及其制造方法 | |
JP2000200584A (ja) | 角型電池 | |
WO2007032273A1 (fr) | Module de dispositif electrique et son procede de production | |
JP2006164784A (ja) | フィルム外装電気デバイス |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
NENP | Non-entry into the national phase |
Ref country code: DE |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 06797704 Country of ref document: EP Kind code of ref document: A1 |
|
NENP | Non-entry into the national phase |
Ref country code: JP |