JP2022550524A - 電池モジュールおよびその製造方法 - Google Patents
電池モジュールおよびその製造方法 Download PDFInfo
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 14
- 229910052751 metal Inorganic materials 0.000 claims abstract description 61
- 239000002184 metal Substances 0.000 claims abstract description 61
- 239000002244 precipitate Substances 0.000 claims abstract description 19
- 238000003466 welding Methods 0.000 claims description 65
- 238000000034 method Methods 0.000 claims description 28
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 14
- 238000006243 chemical reaction Methods 0.000 claims description 14
- 230000005496 eutectics Effects 0.000 claims description 12
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 8
- 229910052802 copper Inorganic materials 0.000 claims description 8
- 239000010949 copper Substances 0.000 claims description 8
- 229910045601 alloy Inorganic materials 0.000 claims description 7
- 239000000956 alloy Substances 0.000 claims description 7
- 229910052759 nickel Inorganic materials 0.000 claims description 7
- 229910052782 aluminium Inorganic materials 0.000 claims description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 6
- 238000007747 plating Methods 0.000 claims description 6
- 230000001939 inductive effect Effects 0.000 claims description 4
- 229910000765 intermetallic Inorganic materials 0.000 description 12
- 238000001556 precipitation Methods 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 5
- 230000001965 increasing effect Effects 0.000 description 5
- 230000000704 physical effect Effects 0.000 description 5
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- 238000007906 compression Methods 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- WPPDFTBPZNZZRP-UHFFFAOYSA-N aluminum copper Chemical compound [Al].[Cu] WPPDFTBPZNZZRP-UHFFFAOYSA-N 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000035515 penetration Effects 0.000 description 3
- 238000010583 slow cooling Methods 0.000 description 3
- 230000006866 deterioration Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
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- 238000010587 phase diagram Methods 0.000 description 2
- 239000006104 solid solution Substances 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 229910018565 CuAl Inorganic materials 0.000 description 1
- 229910002056 binary alloy Inorganic materials 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
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- 238000004146 energy storage Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000002803 fossil fuel Substances 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
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- 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
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- H01M50/50—Current conducting connections for cells or batteries
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- B23K1/00—Soldering, e.g. brazing, or unsoldering
- B23K1/005—Soldering by means of radiant energy
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- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
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- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
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- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
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- B23K26/244—Overlap seam welding
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- 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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- B23K3/00—Tools, devices, or special appurtenances for soldering, e.g. brazing, or unsoldering, not specially adapted for particular methods
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- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—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
- H01M50/209—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
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- 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
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- H—ELECTRICITY
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- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—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
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- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/531—Electrode connections inside a battery casing
- H01M50/536—Electrode connections inside a battery casing characterised by the method of fixing the leads to the electrodes, e.g. by welding
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- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/531—Electrode connections inside a battery casing
- H01M50/54—Connection of several leads or tabs of plate-like electrode stacks, e.g. electrode pole straps or bridges
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
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Abstract
Description
本出願は2020年4月13日付韓国特許出願第10-2020-0044829号に基づいた優先権の利益を主張し、当該韓国特許出願の文献に開示された全ての内容は本明細書の一部として含まれる。
280:バスバー
FI:溶接界面
WP:溶接部
Claims (15)
- 複数の電池セルが積層されている電池セル積層体、
前記電池セル積層体に連結されたバスバーフレーム、
前記電池セル積層体に連結され、第1金属を含む電極リード、および
前記電極リードと重畳し、第2金属を含むバスバーを含み、
前記電極リードと前記バスバーが溶接によって溶接部を形成し、
前記溶接部は、前記電極リードと前記バスバーの境界面を基準にして前記電極リード内に中心部が位置する第1領域および前記バスバー内に中心部が位置する第2領域を含み、
前記第1金属と前記第2金属の析出物は前記第1領域と前記第2領域の両方ともに分布する、電池モジュール。 - 前記電池セル積層体に含まれている電池セルのうちの互いに隣接の電池セルからそれぞれ突出したセルテラスをさらに含み、
前記電極リードは前記セルテラスからそれぞれ突出し、同一な極性を有する複数の電極リードを含み、
前記電極リードは一つのバスバーと重畳している、請求項1に記載の電池モジュール。 - 前記電極リードと前記バスバーの間で、前記バスバー上に第3金属でメッキされているメッキ層をさらに含む、請求項1または2に記載の電池モジュール。
- 前記第1金属はアルミニウムを含み、前記第2金属は銅を含む、請求項3に記載の電池モジュール。
- 前記メッキ層はニッケルを含む、請求項4に記載の電池モジュール。
- 前記析出物は前記溶接部内で分散されている、請求項1~5のいずれか一項に記載の電池モジュール。
- 複数の電池セルを積層して電池セル積層体を形成する段階、
前記電池セルのうちの互いに隣接の電池セルからそれぞれ突出した電極リードのうちの少なくとも一つを同一なバスバーに重畳させる段階、および
前記電極リードと前記バスバーを溶接させる段階を含み、
前記電極リードと前記バスバーを溶接させる段階は、
第1エネルギーを有するレーザで前記電極リードを予熱する段階、および
第2エネルギーを有するレーザで前記予熱された電極リードと前記バスバーを溶接する段階を含み、
前記第1エネルギーは前記第2エネルギーより低い、電池モジュール製造方法。 - 前記電極リードと前記バスバーを溶接させる段階は、前記電極リードに含まれる第1金属と前記バスバーに含まれる第2金属の共晶反応を誘導する段階を含む、請求項7に記載の電池モジュール製造方法。
- 前記電極リードと前記バスバーを溶接させる段階で、前記第1金属に混合される前記第2金属の合金濃度は22wt%~52wt%である、請求項8に記載の電池モジュール製造方法。
- 前記電極リードを予熱する段階の溶接速度は、予熱された前記電極リードと前記バスバーを溶接する速度より大きい、請求項7~9のいずれか一項に記載の電池モジュール製造方法。
- 前記電極リードと前記バスバーを溶接させる段階以前に、前記バスバー上に第3金属でメッキされているメッキ層を形成する段階をさらに含む、請求項7~10のいずれか一項に記載の電池モジュール製造方法。
- 前記レーザは、中心から外郭にレーザビームが照射されるパターンを有する、請求項7~11のいずれか一項に記載の電池モジュール製造方法。
- 前記レーザは、トルネード溶接ビームを有する、請求項12に記載の電池モジュール製造方法。
- 電極リードとバスバーを溶接する方法において、
第1エネルギーを有するレーザで前記電極リードを予熱する段階、および
第2エネルギーを有するレーザで前記予熱された電極リードと前記バスバーを溶接する段階を含み、
前記第1エネルギーは前記第2エネルギーより低く、前記電極リードに含まれる第1金属と前記バスバーに含まれる第2金属の共晶反応を誘導する段階を含む溶接方法。 - 請求項1~6のいずれか一項による電池モジュールを含む電池パック。
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Application Number | Priority Date | Filing Date | Title |
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KR1020200044829A KR20210127009A (ko) | 2020-04-13 | 2020-04-13 | 전지 모듈 및 그 제조 방법 |
KR10-2020-0044829 | 2020-04-13 | ||
PCT/KR2021/004195 WO2021210829A1 (ko) | 2020-04-13 | 2021-04-05 | 전지 모듈 및 그 제조 방법 |
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JP2022550524A true JP2022550524A (ja) | 2022-12-02 |
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US (1) | US20220344779A1 (ja) |
EP (1) | EP4020697A1 (ja) |
JP (1) | JP2022550524A (ja) |
KR (1) | KR20210127009A (ja) |
CN (1) | CN114503354A (ja) |
WO (1) | WO2021210829A1 (ja) |
Citations (6)
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JP2018012125A (ja) * | 2016-07-21 | 2018-01-25 | パナソニックIpマネジメント株式会社 | 溶接金属部材とその溶接金属部材を有する電池 |
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JP5800677B2 (ja) * | 2011-10-27 | 2015-10-28 | 本田技研工業株式会社 | 金属部材の接合方法 |
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FR3004369B1 (fr) * | 2013-04-12 | 2015-08-21 | Thales Sa | Procede d'etablissement d'une liaison permanente entre un alliage ferreux et un aluminium ou un alliage d'aluminium |
JP5982652B2 (ja) * | 2014-04-15 | 2016-08-31 | パナソニックIpマネジメント株式会社 | 異材金属接合体 |
CN105215550A (zh) * | 2015-08-12 | 2016-01-06 | 上海航天精密机械研究所 | 双焦点激光束焊接异种材料界面反应调控方法 |
KR20170078362A (ko) * | 2015-12-29 | 2017-07-07 | 에이치엘그린파워 주식회사 | 금속 가열 마찰 용접 장치 및 방법 |
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JP2012089254A (ja) * | 2010-10-15 | 2012-05-10 | Kobe Steel Ltd | 導電性連結部材、導電性連結部材の製造方法、及び導電性連結部材が電極とされたバッテリ |
JP2016100210A (ja) * | 2014-11-21 | 2016-05-30 | 株式会社オートネットワーク技術研究所 | 蓄電モジュール |
WO2017047050A1 (ja) * | 2015-09-15 | 2017-03-23 | 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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JP2018012125A (ja) * | 2016-07-21 | 2018-01-25 | パナソニックIpマネジメント株式会社 | 溶接金属部材とその溶接金属部材を有する電池 |
KR20190008135A (ko) * | 2017-07-14 | 2019-01-23 | 주식회사 엘지화학 | 배터리 모듈 |
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EP4020697A1 (en) | 2022-06-29 |
WO2021210829A1 (ko) | 2021-10-21 |
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