JP7213209B2 - 金属部材の溶接構造、金属部材の溶接方法および蓄電モジュール - Google Patents
金属部材の溶接構造、金属部材の溶接方法および蓄電モジュール Download PDFInfo
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- 229910052751 metal Inorganic materials 0.000 title claims description 61
- 239000002184 metal Substances 0.000 title claims description 61
- 238000003466 welding Methods 0.000 title claims description 46
- 238000000034 method Methods 0.000 title claims description 11
- 238000003860 storage Methods 0.000 title claims description 8
- 239000000463 material Substances 0.000 claims description 9
- 210000000352 storage cell Anatomy 0.000 claims description 5
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 230000001678 irradiating effect Effects 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000004381 surface treatment Methods 0.000 claims description 2
- 230000002708 enhancing effect Effects 0.000 claims 1
- 210000004027 cell Anatomy 0.000 description 16
- 230000000052 comparative effect Effects 0.000 description 11
- 230000000694 effects Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000002093 peripheral effect Effects 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000005611 electricity Effects 0.000 description 2
- 230000000452 restraining effect Effects 0.000 description 2
- 238000003892 spreading Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 230000004308 accommodation Effects 0.000 description 1
- 238000010306 acid treatment Methods 0.000 description 1
- 239000010953 base metal Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052987 metal hydride Inorganic materials 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
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- 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
- B23K26/211—Bonding by welding with interposition of special material to facilitate connection of the parts
-
- 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
-
- 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
- B23K26/32—Bonding taking account of the properties of the material involved
- B23K26/323—Bonding taking account of the properties of the material involved involving parts made of dissimilar metallic material
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- 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
- B23K26/70—Auxiliary operations or equipment
- B23K26/702—Auxiliary equipment
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- 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
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G2/00—Details of capacitors not covered by a single one of groups H01G4/00-H01G11/00
- H01G2/02—Mountings
- H01G2/06—Mountings specially adapted for mounting on a printed-circuit support
-
- 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
- H01M50/509—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing characterised by the type of connection, e.g. mixed connections
- H01M50/51—Connection only in series
-
- 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
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/02—Soldered or welded connections
- H01R4/029—Welded connections
-
- 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
- H01G11/76—Terminals, e.g. extensions of current collectors specially adapted for integration in multiple or stacked hybrid or EDL capacitors
-
- 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
- H01G2/00—Details of capacitors not covered by a single one of groups H01G4/00-H01G11/00
- H01G2/10—Housing; Encapsulation
- H01G2/106—Fixing the capacitor in a housing
-
- 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
- H01G9/004—Details
- H01G9/008—Terminals
-
- 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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Chemical & Material Sciences (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Laser Beam Processing (AREA)
- Connection Of Batteries Or Terminals (AREA)
Description
R1>R2,
T2>T1,
0.8≦D1/T1≦1.2
である。
Claims (8)
- 第1対向面を有する第1部材と、
前記第1対向面に対向する第2対向面を有する第2部材と、
前記第1部材と前記第2部材とを固定する溶接部とを備え、
前記第1対向面と前記第2対向面との間に隙間が形成され、
前記溶接部は、前記第1部材を貫通し、前記隙間に面する前記第2対向面から前記第2部材の内部に向かって延びるように形成され、
前記隙間における前記溶接部の幅をR1、前記第1部材の前記第1対向面上における前記溶接部の幅をR2としたときに、R1>R2であり、
前記溶接部が形成された部分における前記第2部材の厚みをT2、前記第1部材の厚みをT1としたときに、T2>T1であり、
前記第2部材における前記第2対向面からの前記溶接部の深さをD1としたときに、0.8≦D1/T1≦1.2であり、
前記第1対向面上および前記第2対向面上の少なくとも一方に突起または凹部が形成され、前記突起または前記凹部により前記隙間が形成され、
前記第1部材の前記第1対向面上に前記突起が形成され、
前記第1部材の前記第1対向面と反対側の面が、前記突起と対向する位置と前記突起に隣接する位置との間で平坦に形成される、金属部材の溶接構造。 - 前記第1部材および前記第2部材は、いずれもアルミニウム材により構成される、請求項1に記載の金属部材の溶接構造。
- 前記第1部材および前記第2部材の厚み方向に沿った前記隙間の幅は0.05mm以上0.1mm以下である、請求項1または請求項2に記載の金属部材の溶接構造。
- 前記第1部材の厚みT1および前記第2部材の厚みT2は、いずれも0.08mm以上2.0mm以下である、請求項1から請求項3のいずれか1項に記載の金属部材の溶接構造。
- 前記溶接部は、前記隙間に面する前記第2対向面から前記第2部材を貫通せずに前記第2部材の内部に達するように形成される、請求項1から請求項4のいずれか1項に記載の金属部材の溶接構造。
- 第1対向面を有する第1部材と、
前記第1対向面に対向する第2対向面を有する第2部材と、
前記第1部材と前記第2部材とを固定する溶接部とを備え、
前記第1対向面と前記第2対向面との間に隙間が形成され、
前記溶接部は、前記第1部材を貫通し、前記隙間に面する前記第2対向面から前記第2部材の内部に向かって延びるように形成され、
前記隙間における前記溶接部の幅をR1、前記第1部材の前記第1対向面上における前記溶接部の幅をR2としたときに、R1>R2であり、
前記溶接部が形成された部分における前記第2部材の厚みをT2、前記第1部材の厚みをT1としたときに、T2>T1であり、
前記第2部材における前記第2対向面からの前記溶接部の深さをD1としたときに、0.8≦D1/T1≦1.2であり、
前記第1対向面上および前記第2対向面上の少なくとも一方に突起または凹部が形成され、前記突起または前記凹部により前記隙間が形成され、
前記溶接部は、前記隙間に面する前記第2対向面から前記第2部材を貫通するように形成される、金属部材の溶接構造。 - 電極端子を各々有し、所定の方向に沿って配列された複数の蓄電セルと、
前記複数の蓄電セルの前記電極端子どうしを接続するバスバーと、
前記第1部材としての前記バスバーおよび前記第2部材としての前記電極端子を含む、請求項1から請求項6のいずれかに記載の金属部材の溶接構造とを備えた、蓄電モジュール。 - 第1対向面を有する第1部材と、第2対向面を有する第2部材とを、前記第1対向面および前記第2対向面を対向させ、かつ前記第1対向面および前記第2対向面の間に隙間を形成した状態で重ねる工程と、
前記第1部材における前記第1対向面と反対側の面からレーザ光を照射して前記第1部材および前記第2部材をレーザ溶接する工程とを備え、
前記レーザ溶接する工程により形成される溶接部は、前記第1部材を貫通し、前記隙間に面する前記第2対向面から前記第2部材の内部に向かって延びるように形成され、
前記隙間における前記溶接部の幅をR1、前記第1部材の前記第1対向面上における前記溶接部の幅をR2としたときに、R1>R2であり、
前記溶接部が形成された部分における前記第2部材の厚みをT2、前記第1部材の厚みをT1としたときに、T2>T1であり、
前記第2部材における前記第2対向面からの前記溶接部の深さをD1としたときに、0.8≦D1/T1≦1.2であり、
前記レーザ溶接する工程よりも前に、前記第1対向面および前記第2対向面の少なくとも一方に、レーザ溶接時の溶融金属との濡れ性を高める表面処理を行う工程をさらに備えた、金属部材の溶接方法。
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JP2020139363A JP7213209B2 (ja) | 2020-08-20 | 2020-08-20 | 金属部材の溶接構造、金属部材の溶接方法および蓄電モジュール |
US17/398,001 US11791520B2 (en) | 2020-08-20 | 2021-08-10 | Welding structure of metal members, method of welding metal members, and power storage module |
CN202110952362.0A CN114074222B (zh) | 2020-08-20 | 2021-08-19 | 金属构件的焊接结构、金属构件的焊接方法和蓄电模块 |
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WO2017022238A1 (ja) | 2015-08-05 | 2017-02-09 | パナソニックIpマネジメント株式会社 | レーザ溶接方法 |
JP2017168349A (ja) | 2016-03-17 | 2017-09-21 | 株式会社Gsユアサ | 蓄電装置 |
JP2020028902A (ja) | 2018-08-23 | 2020-02-27 | パナソニックIpマネジメント株式会社 | 溶接構造および溶接方法 |
WO2020050379A1 (ja) | 2018-09-05 | 2020-03-12 | 古河電気工業株式会社 | 溶接方法および溶接装置 |
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JPS59133985A (ja) | 1983-01-21 | 1984-08-01 | Toshiba Corp | レ−ザ溶接方法 |
JP2004148334A (ja) | 2002-10-29 | 2004-05-27 | Nippon Steel Corp | 重ね継手の疲労強度向上方法 |
US20130188296A1 (en) * | 2012-01-19 | 2013-07-25 | Ford Global Technologies, Llc | Material And Coating For Interconnector Busbars |
JP2015119072A (ja) | 2013-12-19 | 2015-06-25 | 富士電機株式会社 | レーザ溶接方法、レーザ溶接治具、半導体装置 |
JP6376221B2 (ja) | 2014-10-30 | 2018-08-22 | 新日鐵住金株式会社 | レーザ溶接継手及びその製造方法 |
JP6587072B2 (ja) * | 2017-10-30 | 2019-10-09 | パナソニックIpマネジメント株式会社 | 金属部材の溶接構造および溶接方法 |
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WO2017022238A1 (ja) | 2015-08-05 | 2017-02-09 | パナソニックIpマネジメント株式会社 | レーザ溶接方法 |
JP2017168349A (ja) | 2016-03-17 | 2017-09-21 | 株式会社Gsユアサ | 蓄電装置 |
JP2020028902A (ja) | 2018-08-23 | 2020-02-27 | パナソニックIpマネジメント株式会社 | 溶接構造および溶接方法 |
WO2020050379A1 (ja) | 2018-09-05 | 2020-03-12 | 古河電気工業株式会社 | 溶接方法および溶接装置 |
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US11791520B2 (en) | 2023-10-17 |
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JP2022035212A (ja) | 2022-03-04 |
US20220059907A1 (en) | 2022-02-24 |
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