WO2012063381A1 - 電池モジュールと電池モジュール溶接方法 - Google Patents

電池モジュールと電池モジュール溶接方法 Download PDF

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Publication number
WO2012063381A1
WO2012063381A1 PCT/JP2011/003353 JP2011003353W WO2012063381A1 WO 2012063381 A1 WO2012063381 A1 WO 2012063381A1 JP 2011003353 W JP2011003353 W JP 2011003353W WO 2012063381 A1 WO2012063381 A1 WO 2012063381A1
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WO
WIPO (PCT)
Prior art keywords
battery
negative electrode
battery module
connection plate
welding
Prior art date
Application number
PCT/JP2011/003353
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
英俊 宇津呂
西川　幸男
知実 田中
俊樹 糸井
Original Assignee
パナソニック株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by パナソニック株式会社 filed Critical パナソニック株式会社
Priority to KR1020137004244A priority Critical patent/KR101525331B1/ko
Priority to CN201180025976.9A priority patent/CN102906902B/zh
Priority to JP2012542786A priority patent/JP5528571B2/ja
Publication of WO2012063381A1 publication Critical patent/WO2012063381A1/ja

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • 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
    • 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
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/271—Lids or covers for the racks or secondary casings
    • H01M50/273—Lids or covers for the racks or secondary casings characterised by the material
    • H01M50/278—Organic material
    • 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
    • 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
    • B23K26/22—Spot welding
    • 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
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
    • H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
    • H01M50/213—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for cells having curved cross-section, e.g. round or elliptic
    • 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
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/218—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the material
    • H01M50/22—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the material of the casings or racks
    • H01M50/227—Organic material
    • 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
    • H01M50/503—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing characterised by the shape of the interconnectors
    • 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
    • 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
    • H01M50/521—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing characterised by the material
    • H01M50/522—Inorganic material
    • 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
    • B23K2101/38—Conductors
    • 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

Definitions

  • the present invention relates to a battery module formed by combining a plurality of batteries.
  • This battery module is configured by mounting a plurality of batteries in order to obtain a desired voltage and capacity.
  • Examples of the battery used here include secondary batteries such as nickel hydride, nickel cadmium, and lithium ion that can be used repeatedly from the viewpoint of resource saving and energy saving.
  • the lithium ion secondary battery is lightweight. Since the electromotive force is high and the energy density is high, expectations are high as batteries for battery modules.
  • the cylindrical lithium ion secondary battery includes a positive electrode 2 having a positive electrode lead 1 made of aluminum, and a negative electrode 4 having a negative electrode lead 3 made of copper and facing the positive electrode 2. .
  • the electrode group 6 in which the positive electrode 2 and the negative electrode 4 are wound through the separator 5 is inserted into the battery case 8 with the insulating plates 7a and 7b attached to the upper and lower sides thereof, and the other end of the positive electrode lead 1 is attached.
  • the sealing plate 10 is welded to the bottom of the other battery case 8 of the negative electrode lead 3.
  • a non-aqueous electrolyte that electrolyzes lithium ions is injected into the battery case 8, and the open end of the battery case 8 is caulked together with the sealing plate 10 and the like via the gasket 9.
  • 11 is a positive electrode cap.
  • the battery module 12 configured by connecting a plurality of cylindrical lithium ion secondary batteries is configured as shown in FIGS.
  • the battery module 12 has a casing 13 and a lid 14 made of an insulating resin material such as polycarbonate resin, and houses a wiring board 15 and a plurality of cylindrical batteries 16 therein. It is configured.
  • the wiring board 15 is made of, for example, a glass-epoxy substrate, and is connected to the connection terminal 17 connected to the positive electrode of each cylindrical battery 16, and to the negative electrode of each cylindrical battery 16.
  • the power supply wiring (power line not shown) which connects the adjacent connection terminal 17 and the connection board 18 is provided.
  • connection terminal 17 and the connection plate 18 are made of, for example, a nickel plate or a lead wire, and are connected to the power supply wiring formed of copper foil or the like.
  • an insulator 19 is interposed between the wiring board 15 and the battery case 8.
  • the positive electrode cap 11 of the cylindrical battery 16 is connected to the connection terminal 17 of the wiring substrate 15 at the positive electrode welding portion 20.
  • the negative electrode 21 of each cylindrical battery 16, 16,... is connected to the connection plate 18 at the negative electrode welded portion 22.
  • connection plate 18 is necessary to perform negative electrode welding at the bottom of the cylindrical battery, which increases the material cost and increases the volume and weight. .
  • connection plate 18 has a problem that the efficiency is lowered.
  • An object of the present invention is to realize a low-cost, small and lightweight battery module and a battery module that can efficiently raise and cool the battery.
  • the battery module of the present invention is a battery module in which the electrodes of a plurality of tubular batteries are electrically connected, and the curvature of the battery case of the tubular battery at the end of the tubular battery on the side where the positive electrode protrusion is disposed.
  • the shoulder part having the above and the connecting plate are connected by a negative electrode welded part.
  • a battery plate is crimped and a shoulder plate having a curvature is placed in the same direction, a connection plate is placed on the shoulder portion of the plurality of cylindrical batteries, and the battery of the connection plate A laser beam is irradiated from the surface opposite to the contact portion with the shoulder portion of the case, and the connection plate and the timing between immediately before and immediately after the laser beam is supposed to touch or cross the expected position of the contact portion
  • the battery case is formed with a negative electrode welded portion electrically connected thereto.
  • the negative electrode is welded to the connection plate at the shoulder of the cylindrical battery, it is not necessary to provide the negative electrode connection plate at the bottom of the cylindrical battery. Further, even if there is a variation in the length of the cylindrical battery, it can be connected without being affected by it. In usage forms that require temperature rise and cooling of the battery module, the entire end of the tubular battery can be brought into contact with the temperature-adjusted intermediate material, etc., so that heat can be exchanged efficiently. Can improve.
  • FIG. 1 is a cross-sectional view showing welded portions of a positive electrode and a negative electrode of a tubular battery welded in Embodiment 1 according to the present invention.
  • Cross-sectional view of a welded joint of a cylindrical battery according to the first embodiment of the present invention The top view which shows the laser locus which welds a cylindrical battery in Embodiment 1 which concerns on this invention.
  • the perspective view which shows the battery module welded in Embodiment 1 which concerns on this invention.
  • Embodiment 1 to 4 show Embodiment 1 of the present invention.
  • FIG. 1 shows the battery module 12 according to the first embodiment, which is configured by electrically connecting the negative electrodes 21 of a plurality of cylindrical batteries 16, 16,.
  • Reference numeral 24 denotes a negative electrode welding portion between the negative electrode 21 and the connection plate 23, which is laser-welded.
  • the positive electrode cap 11 as the positive electrode protrusion is electrically connected to the connection terminal 17 of the wiring board 15 by the positive electrode welded part 20.
  • An insulator 19 is interposed between the wiring board 15 and the connection plate 23.
  • each cylindrical battery 16, 16,... Is the same as that shown in FIG.
  • the connecting structure is different from that shown in FIGS.
  • the electrode group 6 in which the positive electrode 2 and the negative electrode 4 are wound through the separator 5 is inserted into the battery case 8 with the insulating plates 7a and 7b mounted on the upper and lower sides thereof.
  • the other end of the lead 1 is welded to the sealing plate 10 and the bottom of the other battery case 8 of the negative electrode lead 3.
  • a non-aqueous electrolyte that electrolyzes lithium ions is injected into the battery case 8, and the open end of the battery case 5 is sealed with a sealing plate 10 or the like via a gasket 9.
  • the negative electrode 21 and the connection plate 23 are connected as follows.
  • the cylindrical battery 16 sealed by caulking the open end of the battery case 8 has a curved surface on the shoulder 21 a of the negative electrode 21 of the battery case 8.
  • the contact portion between the connection plate 23 and the shoulder portion of the battery case 8 becomes a circumferential contact portion 25 indicated by a two-dot chain line in FIG.
  • the surface opposite to the contact surface of the connection plate 23 with the battery case 8 is scanned so as to follow the contact portion 25 for each tubular battery 16 to irradiate the laser beam 26 circumferentially,
  • the contact portions of the connection plate 23 and the battery case 8 are sequentially welded to form the negative electrode welded portion 24, and the negative electrodes of the plurality of cylindrical batteries 16, 16,... Are welded to the connection plate 23 as shown in FIG. Assembled into a finished state.
  • connection terminal 17 and the wiring board 15 are joined at the positive electrode weld 20, but the connection plate 23 and the wiring board 15 are insulated by the insulator 19, and the connection terminal 17 and the wiring board 15 are connected. Are connected by solder or the like.
  • connection of the negative electrode 21 of the adjacent battery cell 16 corresponds to the positive electrode cap 11 of the adjacent battery cell 16 between the shoulder portions 21a of the negative electrode 21 positioned around the positive electrode cap 11 of each battery cell 16. Since the holes 48 are formed and the connection is made only on the side of the positive electrode cap 11 of the cylindrical battery 16 via the connection plate 23 that does not come into contact with the positive electrode cap 11, the length of the cylindrical battery 16 varies. Can be connected without being affected.
  • the battery module 16 can be used in a usage mode in which the battery module needs to be heated or cooled. Since the entire end 49 can be brought into contact with temperature-adjusted liquid or an intermediate material such as a gel that has both a shock absorbing function and a temperature transfer function, the heat can be efficiently exchanged, improving the heating and cooling efficiency. it can.
  • this slight misalignment may cause uneven welding strength and variations in welding strength, and may cause welding distortion due to scanning the laser in a circumferential shape. Furthermore, when two or more batteries are welded, it is necessary to weld them one by one in time series.
  • the scanning of the laser beam 26 is changed from that in the first embodiment, thereby making it unnecessary to align the battery module and the laser locus during welding.
  • connection plate 23 (not shown in FIG. 6) on the plurality of adjacent cylindrical batteries 16, 16, 16. Then, the laser is irradiated so as to cross an expected position which is considered to be a close contact portion 25 with the shoulder portion of each cylindrical battery 16.
  • the laser scanning is performed along the trajectories L1, L2, L3, and L4 along the arrangement direction (the direction of the arrow 28) of the plurality of tubular batteries 16, 16, 16.
  • the laser irradiation power is switched to a power that can be welded only at the timings T1, T2, T3, T4, T5, and T6 from the immediately preceding to the immediately following, which seems to cross the close contact portion 25 of each cylindrical battery 16, and is connected.
  • the negative electrode welded portion 24 is formed by welding the plate 23 and the top of the shoulder portion 21 a of the caulking portion of the battery case 8. At this time, the shape of the negative electrode welded portion 24 is linear.
  • Reference numeral 50 denotes a line passing through the center of the positive electrode cap 11 of each cylindrical battery 16. Here, the center of the positive electrode of the cylindrical battery 16 and the center of the positive electrode cap 11 coincide.
  • the trajectory L2 is scanned by moving the laser irradiation position in a direction crossing the direction of arrangement of the plurality of cylindrical batteries 16, 16, 16. Switching the laser irradiation power to a power that can be welded only at the timings T7, T8, T9, T10, T11, and T12 immediately before and after the time when it seems to cross the contact portion 25 of the battery 16, the top part of the cylindrical battery caulking portion and the connection plate 23 is welded.
  • the trajectories L3 and L4 are similarly scanned to switch the laser irradiation power to a power that can be welded only at the timings T13 to T18 and T19 to T24, so that the connection plate 23 and the shoulder 21a of the caulking portion of the battery case 8 are switched. Weld the top.
  • the number of the negative electrode welds 24 in each tubular battery 16 formed in this way is a plurality of eight places, and all are point-symmetric with respect to the center of the positive electrode cap 11 of each tubular battery 16.
  • the extension line of any of the linear negative electrode welds 24 does not intersect the positive electrode cap 11 of each cylindrical battery 16.
  • the eight negative electrode welded portions 24 are formed in a distributed manner in the circumferential direction of the battery case 8, there is no current concentration, and electric power can be taken out satisfactorily.
  • the plurality of negative electrode welded portions 24 are passed through the centers of the positive electrode caps 11 of the plurality of cylindrical batteries 16, with respect to the line 50 along the arrangement direction 28 of the plurality of cylindrical batteries 16. Are arranged in a line-symmetric shape.
  • This welding method has the advantage that positioning is not required because the laser trajectory always crosses the closely contacted part. Also, since a plurality of cylindrical batteries 16 are welded together in a straight line, welding is possible in a short time. It is. Further, it is possible to equalize and stabilize the strength by eliminating welding strength unevenness and welding strength variation, and to improve welding accuracy and mechanical accuracy by eliminating welding distortion.
  • the negative electrode welded portion 24 is formed by scanning along the arrangement direction 28 of the plurality of cylindrical batteries 16 and irradiating the laser beam 26, welding of the single cylindrical battery 16 to the connection plate 23 is completed. Compared to the case where the next battery cell 16 is welded to the connection plate 23, the influence of heat per unit time on the one battery cell 16 is small, and the distortion of the connection plate 23 is also small.
  • connection plate 23 when one side of the plurality of tubular batteries 16 is welded with the common connection plate 23, the distortion of the connection plate 23 is very small in that the connected plurality of tubular batteries 16 can be maintained in an aligned state. It is preferable, and it is effective when manufacturing a vehicle-mounted battery etc. by accommodating many cylindrical batteries in a limited space.
  • the scanning of the laser beam 26 is moved along the trajectories L1, L2, L3, L4 in the arrangement direction (arrow 28 direction) of the plurality of cylindrical batteries 16, 16, 16.
  • a rectangular shape as shown in FIG.
  • the junction area is small, heat generation at the junction when current flows during battery module operation increases, and the temperature rise may not be within the allowable range. In that case, as shown in FIG.
  • the joint area and joint strength can be improved.
  • the laser scanning position is moved along the locus L ⁇ b> 1 so as to come into contact with the contact portion 25 of each battery cell 16, or it is assumed that the contact portion 25 of the battery cell 16 is crossed.
  • the power of the laser irradiation is switched to a power that can be welded only at timings T1 to T8 immediately after the welding, and the top of the shoulder 21a of the caulking portion of the battery case 8 is welded.
  • the welding is performed in the same manner for the tubular battery 16 before welding adjacent to the tubular battery 16 after the welding.
  • the power of the laser irradiation is switched to a power that can be welded only at timings T1 to T8, and the connection plate 23 and the battery case 8 are formed by a plurality of intermittent welding points arranged along the outer periphery of one cylindrical battery. Since the negative electrode welded portion 24 with the shoulder portion 21a is formed, the heat acting on each of the battery cells 16 and the connecting plate 23 is compared with the case where welding is performed by laser irradiation continuously along the contact portion 25. The impact is small.
  • the laser scanning position is moved along the locus L1 and welding is performed in the same manner as in FIG. 7, the laser scanning position is moved to the locus L2 on the inner circumference side of the locus L1, and the contact
  • the connection plate 23 and the battery case are switched to the power capable of welding the laser irradiation power only at the timings T9 to T16 from the immediately preceding to the immediately following which seems to be in contact with the portion 25 or cross the contact portion 25 of the cylindrical battery 16.
  • the top of the caulking portion of 8 is welded. The welding is performed in the same manner for the tubular battery 16 before welding adjacent to the tubular battery 16 after the welding.
  • the laser welding mode is a heat conduction type
  • the laser power is very low so that the laser does not penetrate the battery case 8 and the temperature of the battery case 8 does not rise too much.
  • the temperature of the battery case 8 is within a range where stress relaxation of the gasket 9 does not occur by adopting keyhole welding with a high scanning speed as a laser welding mode in each embodiment. It is possible to perform welding so that the rise is suppressed and the electrolyte does not leak, and the connection plate 23 and the cylindrical battery 16 can be welded more easily and in a short time.
  • a laser beam 26 having a higher output than that in the case of heat conduction laser welding is used so that the laser beam 26 reaches the surface of the negative electrode 21 through the connection plate 23.
  • the connection plate 23 at the laser irradiation position and the shoulder of the negative electrode 21 are partially melted by the heat of the laser to form a molten pool 40 that is a pool of molten metal.
  • a laser penetrates the connecting plate 23 at the tip of the molten pool 40 to form a keyhole 41.
  • an arrow 42 indicates the welding progress direction
  • an arrow 43 indicates the flow of melting in the molten pool 40
  • 44 indicates bubbles
  • 45 indicates voids
  • 46 indicates spatter.
  • the amount of plasma emission is measured and the amount of plasma emission obtained by the measurement is measured.
  • the output power of the laser beam 26 so as to approach the target plasma emission amount when is the target keyhole depth, the elongated shape of the keyhole 41 can be stabilized.
  • a hybrid laser in which the fiber laser 29 and the semiconductor laser 30 are overlapped is preferably used.
  • the laser barrel 31 has mirrors 32 and 33 and a lens 34.
  • the fiber laser 29 incident on the laser barrel 31 is reflected by the mirror 32, passes through the mirror 33 and the lens 34, and is irradiated toward the negative electrode weld.
  • the semiconductor laser 30 incident on the laser barrel 31 is reflected by the mirror 33, passes through the lens 34, and is irradiated toward the negative electrode weld.
  • the penetration depth with the fiber laser 29 and securing the welding width with the semiconductor laser 30 it is possible to obtain a sufficient welding width with a penetration depth that is a dimension stop relative to the thickness of the battery case. it can.
  • the hybrid laser it is possible to suppress the occurrence of spatter and blow holes and improve the welding quality.
  • the present invention is useful as a battery module having a plurality of batteries mounted thereon and a welding method thereof for use in a power source for driving a motor of an automobile or the like, which requires high performance and reliability as well as resource saving and energy saving.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Optics & Photonics (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Inorganic Chemistry (AREA)
  • Plasma & Fusion (AREA)
  • Mechanical Engineering (AREA)
  • Connection Of Batteries Or Terminals (AREA)
  • Battery Mounting, Suspending (AREA)
  • Sealing Battery Cases Or Jackets (AREA)
PCT/JP2011/003353 2010-11-08 2011-06-14 電池モジュールと電池モジュール溶接方法 WO2012063381A1 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
KR1020137004244A KR101525331B1 (ko) 2010-11-08 2011-06-14 전지 모듈과 전지 모듈 용접 방법
CN201180025976.9A CN102906902B (zh) 2010-11-08 2011-06-14 电池组件及电极组件焊接方法
JP2012542786A JP5528571B2 (ja) 2010-11-08 2011-06-14 電池モジュールと電池モジュール溶接方法

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2010-249250 2010-11-08
JP2010249250 2010-11-08

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Publication Number Publication Date
WO2012063381A1 true WO2012063381A1 (ja) 2012-05-18

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JP (1) JP5528571B2 (ko)
KR (1) KR101525331B1 (ko)
CN (1) CN102906902B (ko)
WO (1) WO2012063381A1 (ko)

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CN104411444A (zh) * 2012-06-20 2015-03-11 Sk新技术株式会社 电池模块焊接方法及焊接结构
JP2016143656A (ja) * 2015-02-05 2016-08-08 株式会社Ｇｓユアサ 蓄電素子、蓄電素子を備えた蓄電装置、蓄電素子の製造方法、及び蓄電装置の製造方法
CN108044263A (zh) * 2017-12-08 2018-05-18 安徽六和同心风能设备有限公司 锂电池焊接设备
JP2019003837A (ja) * 2017-06-15 2019-01-10 株式会社豊田自動織機 電極組立体
JP2019511824A (ja) * 2017-01-19 2019-04-25 エルジー・ケム・リミテッド 電極端子接続プレートを備えている電池パック
CN110120487A (zh) * 2019-05-17 2019-08-13 河南顺之航能源科技有限公司 一种单面焊接的电池模组及其制作方法
CN114824672A (zh) * 2022-03-30 2022-07-29 北京海博思创科技股份有限公司 电池模组的制备方法及电池模组
WO2023047757A1 (ja) * 2021-09-27 2023-03-30 パナソニックＩｐマネジメント株式会社 円筒型電池

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KR102140212B1 (ko) 2014-02-07 2020-07-31 삼성에스디아이 주식회사 배터리모듈 및 그 제조방법
CN105562930B (zh) * 2016-03-03 2017-10-03 武汉华工激光工程有限责任公司 一种动力电池外壳的激光焊接方法
KR102072481B1 (ko) * 2016-03-23 2020-02-25 주식회사 엘지화학 압력게이지를 사용하여 용접 상태를 검사하는 방법
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