JP4923313B2 - 密閉型電池およびその製造方法 - Google Patents
密閉型電池およびその製造方法 Download PDFInfo
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- JP4923313B2 JP4923313B2 JP2011525750A JP2011525750A JP4923313B2 JP 4923313 B2 JP4923313 B2 JP 4923313B2 JP 2011525750 A JP2011525750 A JP 2011525750A JP 2011525750 A JP2011525750 A JP 2011525750A JP 4923313 B2 JP4923313 B2 JP 4923313B2
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- 238000004519 manufacturing process Methods 0.000 title claims description 20
- 238000007789 sealing Methods 0.000 claims description 157
- 238000003466 welding Methods 0.000 claims description 85
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- 238000010438 heat treatment Methods 0.000 description 11
- 229910052751 metal Inorganic materials 0.000 description 11
- 239000002184 metal Substances 0.000 description 11
- 229910052782 aluminium Inorganic materials 0.000 description 10
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 10
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 9
- 229910001416 lithium ion Inorganic materials 0.000 description 9
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- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 2
- 239000002033 PVDF binder Substances 0.000 description 2
- -1 but in general Chemical compound 0.000 description 2
- 239000003792 electrolyte Substances 0.000 description 2
- 239000011888 foil Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000011255 nonaqueous electrolyte Substances 0.000 description 2
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
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- 239000006230 acetylene black Substances 0.000 description 1
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- 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
-
- 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
- H01M50/528—Fixed electrical connections, i.e. not intended for disconnection
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/147—Lids or covers
- H01M50/148—Lids or covers characterised by their shape
- H01M50/152—Lids or covers characterised by their shape 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
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/147—Lids or covers
- H01M50/166—Lids or covers characterised by the methods of assembling casings with lids
- H01M50/171—Lids or covers characterised by the methods of assembling casings with lids using adhesives or sealing agents
-
- 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
- H01M50/538—Connection of several leads or tabs of wound or folded electrode stacks
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/147—Lids or covers
- H01M50/155—Lids or covers characterised by the material
- H01M50/157—Inorganic material
- H01M50/159—Metals
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/147—Lids or covers
- H01M50/166—Lids or covers characterised by the methods of assembling casings with lids
- H01M50/167—Lids or covers characterised by the methods of assembling casings with lids by crimping
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/49108—Electric battery cell making
- Y10T29/4911—Electric battery cell making including sealing
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Connection Of Batteries Or Terminals (AREA)
- Sealing Battery Cases Or Jackets (AREA)
- Secondary Cells (AREA)
- Battery Electrode And Active Subsutance (AREA)
Description
2 負極板
3 セパレータ
4 電極群
5 電池ケース
6 ガスケット
7、8 絶縁板
9 溶接部
10 封口板
11、18 リード
11a 加熱領域
12 レーザ光
12a レーザ加工ヘッド
13 溶接部の端部
14 高圧プラズマ
17 キーホール
40 封口板
41 電極群
42 リード
42a 加熱領域
43 溶接部
44 レーザ光
45 溶接部
46 高圧プラズマ
47 スパッタ
49 異物
50 隙間
51 穴開き
Claims (9)
- 正極板および負極板をセパレータを介して捲回または積層してなる電極群を電池ケース内に収容し、この電池ケースの開口部を封口板で封口した密閉型電池であって、
前記電極群のいずれか一方の極板から導出されたリードが前記封口板にライン状にレーザ溶接されており、
前記リードと前記封口板とのライン状の溶接部において、該溶接部の端部の溶融幅が、前記溶接部の中央部の溶融幅より小さい、密閉型電池。 - 前記リードと前記封口板との溶接部において、該溶接部の溶融終了側の端部の溶融幅が、前記溶接部の中央部の溶融幅より小さい、請求項1に記載の密閉型電池。
- 前記溶接部の端部の溶融幅が前記溶接部の中央部の溶融幅の1/5以下である、請求項1に記載の密閉型電池。
- 正極板および負極板をセパレータを介して捲回または積層して電極群を形成する工程と、
前記電極群のいずれか一方の極板に、リードの一端を接続する工程と、
前記電極群を電池ケース内に収容する工程と、
前記リードの他端を封口板に当接させて、前記リードの厚みよりも小さいスポット径を有するレーザ光を連続的に走査しながら前記リード側から照射することによって、前記リードの他端を前記封口板にライン状にレーザ溶接する工程と、
電池ケースの開口部を前記封口板で封口する工程と
を含み、
前記レーザ溶接により溶接された前記リードと前記封口板とのライン状の溶接部は、該溶接部の端部の溶融幅が、前記溶接部の中央部の溶融幅より小さくなっている、密閉型電池の製造方法。 - 前記レーザ溶接により溶接された前記リードと前記封口板との溶接部は、該溶接部の溶融終了側の端部の溶融幅が、前記溶接部の中央部の溶融幅より小さくなっている、請求項4に記載の密閉型電池の製造方法。
- 前記レーザ光のスポット径が前記リードの厚みの1/10〜1/2である、請求項4に記載の密閉型電池の製造方法。
- 前記レーザ光を照射する際に、前記リードと前記封口板との溶接部の周辺を負圧にする、請求項4に記載の密閉型電池の製造方法。
- 前記レーザ光を照射する際に、前記リードと前記封口板との溶接部の周辺を吸引する、請求項4に記載の密閉型電池の製造方法。
- 前記レーザ光を照射する際に、前記リードと前記封口板との溶接部の周辺に磁力を発生させながら吸引する、請求項8に記載の密閉型電池の製造方法。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2011525750A JP4923313B2 (ja) | 2009-08-05 | 2010-07-21 | 密閉型電池およびその製造方法 |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009182154 | 2009-08-05 | ||
JP2009182154 | 2009-08-05 | ||
PCT/JP2010/004671 WO2011016194A1 (ja) | 2009-08-05 | 2010-07-21 | 密閉型電池およびその製造方法 |
JP2011525750A JP4923313B2 (ja) | 2009-08-05 | 2010-07-21 | 密閉型電池およびその製造方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP4923313B2 true JP4923313B2 (ja) | 2012-04-25 |
JPWO2011016194A1 JPWO2011016194A1 (ja) | 2013-01-10 |
Family
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Family Applications (1)
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JP2011525750A Active JP4923313B2 (ja) | 2009-08-05 | 2010-07-21 | 密閉型電池およびその製造方法 |
Country Status (5)
Country | Link |
---|---|
US (1) | US9634298B2 (ja) |
JP (1) | JP4923313B2 (ja) |
KR (1) | KR101306410B1 (ja) |
CN (1) | CN102473889B (ja) |
WO (1) | WO2011016194A1 (ja) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104737328B (zh) * | 2012-10-26 | 2017-03-08 | 三洋电机株式会社 | 电源装置以及具备电源装置的电动车辆及蓄电装置、电源装置的制造方法 |
KR101866614B1 (ko) | 2015-03-09 | 2018-06-11 | 주식회사 엘지화학 | 레이저 용접용 지그를 이용한 레이저 용접 방법 |
WO2017098690A1 (ja) * | 2015-12-10 | 2017-06-15 | パナソニックIpマネジメント株式会社 | 電池 |
US10201876B2 (en) * | 2016-03-09 | 2019-02-12 | Ngk Spark Plug Co., Ltd. | Laser welding method, method for manufacturing welded body, method for manufacturing electrode for spark plug, and method for manufacturing spark plug |
JP6852279B2 (ja) * | 2016-04-27 | 2021-03-31 | 三洋電機株式会社 | 非水電解質二次電池 |
US11130196B2 (en) * | 2017-03-30 | 2021-09-28 | Nio Usa, Inc. | Single-position sequential laser welding system |
WO2019044265A1 (ja) * | 2017-08-30 | 2019-03-07 | 三洋電機株式会社 | 密閉電池及びその製造方法 |
EP4333142A1 (en) * | 2021-10-14 | 2024-03-06 | LG Energy Solution, Ltd. | Cylindrical secondary battery to which laser welding is applied and fabricating method thereof, battery pack and vehicle comprising same |
CN115424865A (zh) * | 2022-10-13 | 2022-12-02 | 中国振华(集团)新云电子元器件有限责任公司(国营第四三二六厂) | 一种电容器及其制造方法 |
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JP2000299099A (ja) * | 1999-04-13 | 2000-10-24 | Matsushita Electric Ind Co Ltd | 電池の製造方法 |
JP2001160387A (ja) * | 1999-09-21 | 2001-06-12 | Sanyo Electric Co Ltd | 非水電解液二次電池及びその製造方法 |
JP2005038866A (ja) * | 2004-11-05 | 2005-02-10 | Hitachi Maxell Ltd | 角形密閉式蓄電池およびその製造方法 |
JP2007234276A (ja) * | 2006-02-28 | 2007-09-13 | Matsushita Electric Ind Co Ltd | 非水電解液電池 |
WO2010016182A1 (ja) * | 2008-08-08 | 2010-02-11 | パナソニック株式会社 | 密閉型二次電池及びその製造方法 |
WO2011016200A1 (ja) * | 2009-08-05 | 2011-02-10 | パナソニック株式会社 | 密閉型電池およびその製造方法 |
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KR100675700B1 (ko) * | 1999-08-10 | 2007-02-01 | 산요덴키가부시키가이샤 | 비수 전해액 이차 전지 및 그 제조 방법 |
JP3951526B2 (ja) * | 1999-11-26 | 2007-08-01 | 松下電器産業株式会社 | 円筒型蓄電池 |
JP4504600B2 (ja) * | 2000-11-30 | 2010-07-14 | パナソニック株式会社 | 角形密閉式電池及びその製造方法 |
JP2003109576A (ja) * | 2001-09-28 | 2003-04-11 | Sanyo Electric Co Ltd | 電池の製造方法および電池製造用の接合装置 |
JP2005347415A (ja) * | 2004-06-01 | 2005-12-15 | Miyachi Technos Corp | 電気部品実装方法 |
US20060108335A1 (en) * | 2004-10-29 | 2006-05-25 | Hailiang Zhao | Laser penetration weld |
-
2010
- 2010-07-21 US US13/381,858 patent/US9634298B2/en active Active
- 2010-07-21 JP JP2011525750A patent/JP4923313B2/ja active Active
- 2010-07-21 KR KR1020117031355A patent/KR101306410B1/ko not_active IP Right Cessation
- 2010-07-21 WO PCT/JP2010/004671 patent/WO2011016194A1/ja active Application Filing
- 2010-07-21 CN CN201080034448.5A patent/CN102473889B/zh active Active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2000299099A (ja) * | 1999-04-13 | 2000-10-24 | Matsushita Electric Ind Co Ltd | 電池の製造方法 |
JP2001160387A (ja) * | 1999-09-21 | 2001-06-12 | Sanyo Electric Co Ltd | 非水電解液二次電池及びその製造方法 |
JP2005038866A (ja) * | 2004-11-05 | 2005-02-10 | Hitachi Maxell Ltd | 角形密閉式蓄電池およびその製造方法 |
JP2007234276A (ja) * | 2006-02-28 | 2007-09-13 | Matsushita Electric Ind Co Ltd | 非水電解液電池 |
WO2010016182A1 (ja) * | 2008-08-08 | 2010-02-11 | パナソニック株式会社 | 密閉型二次電池及びその製造方法 |
WO2011016200A1 (ja) * | 2009-08-05 | 2011-02-10 | パナソニック株式会社 | 密閉型電池およびその製造方法 |
Also Published As
Publication number | Publication date |
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JPWO2011016194A1 (ja) | 2013-01-10 |
CN102473889A (zh) | 2012-05-23 |
US20120121954A1 (en) | 2012-05-17 |
US9634298B2 (en) | 2017-04-25 |
KR101306410B1 (ko) | 2013-09-09 |
KR20120027416A (ko) | 2012-03-21 |
WO2011016194A1 (ja) | 2011-02-10 |
CN102473889B (zh) | 2014-02-19 |
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