JPS5810364A - Sealing of battery - Google Patents

Sealing of battery

Info

Publication number
JPS5810364A
JPS5810364A JP56109581A JP10958181A JPS5810364A JP S5810364 A JPS5810364 A JP S5810364A JP 56109581 A JP56109581 A JP 56109581A JP 10958181 A JP10958181 A JP 10958181A JP S5810364 A JPS5810364 A JP S5810364A
Authority
JP
Japan
Prior art keywords
battery
lid
laser light
opening end
irradiated
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
JP56109581A
Other languages
Japanese (ja)
Inventor
Konosuke Ikeda
宏之助 池田
Hisao Oishi
大石　久夫
Tsurumi Kuga
久我　鶴美
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sanyo Electric Co Ltd
Sanyo Denki Co Ltd
Original Assignee
Sanyo Electric Co Ltd
Sanyo Denki Co Ltd
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 Sanyo Electric Co Ltd, Sanyo Denki Co Ltd filed Critical Sanyo Electric Co Ltd
Priority to JP56109581A priority Critical patent/JPS5810364A/en
Publication of JPS5810364A publication Critical patent/JPS5810364A/en
Pending legal-status Critical Current

Links

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
    • H01M50/10—Primary casings, jackets or wrappings of a single cell or a single battery
    • H01M50/147—Lids or covers
    • H01M50/166—Lids or covers characterised by the methods of assembling casings with lids
    • H01M50/169—Lids or covers characterised by the methods of assembling casings with lids by welding, brazing or soldering
    • 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

Abstract

PURPOSE:To enable the welding between a battery case and a battery lid to be securely performed even when the case and the lid are not sufficiently in close contact with one another by making laser light to reach at least one part of the lid and the can by irradiating laser light from a direction different from that of the joint surface between the opening end of the can and the rising periphery of the lid. CONSTITUTION:A rising periphery 51 of a battery lid 5 is connected to an opening end 11 of a battery can 1 in which a generation element 2 is installed. After that, the battery is fixed to a tool 6, which is slanted at an angle of alpha. When a laser light 7 is irradiated on the joint surface between the opening end 11 and the rising periphery 51, a fused part 8 is formed by fusion, and the battery is sealed.

Description

【発明の詳細な説明】 本発明は金属製の電池缶の開口縁に同じく金属製の電池
蓋を嵌着し、これらの接合部を溶着して封口する構造の
電池に係り、特にその封目方法の改良に関するものであ
る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a battery having a structure in which a metal battery lid is fitted onto the opening edge of a metal battery can and the joints are welded to seal the lid. It concerns improvements in the method.

この種電池は第１図に示すように電解液を含む発電素体
（２）を収納した正極端子兼用の電池缶（１）と。As shown in FIG. 1, this type of battery has a battery can (1) that also serves as a positive terminal and houses a power generation element body (2) containing an electrolyte.

中心透孔に絶縁体（３）を介して負極端子ピン（４）を
貫通固定せる電池蓋（５）とを備え、電池缶（１）の開
口縁（１１１に電池蓋（５）の立上り周縁（５］）を装
着した後、それらの接合部にレーザ光を照射し溶接によ
り封口している。而して、電池缶（］）及び電池蓋１５
１などの電池部品はトリミング法や切り絞り法といった
成型法で加工されているため、接合部の密着性が不充分
であり、部端な場合には間隙が存在していることがある
。一方レーザ溶接法によれば瞬時的に溶接が可能である
という利点を有する反面、レーザ光は非常に直進性が良
く、巨焦点が極めて小さいために材料の合せ面、即ち電
池缶（］）と電池蓋（５）との接合部に間隙が存在して
いるとレーザ光が間隙を通過して接合部の溶接が行なわ
れなくなり、且通過したレーザ光を受けて電池内が発熱
し電解液が吹出すといった不都合を生じる懸念がある。The battery cover (5) is provided with a central through hole through which a negative terminal pin (4) is fixed through an insulator (3), and the opening edge of the battery can (1) (111 is a rising edge of the battery cover (5)). (5]), the joints are irradiated with a laser beam and sealed by welding.Thus, the battery can (]) and the battery lid 15 are sealed.
Since battery parts such as No. 1 are processed by a molding method such as a trimming method or a cutting method, the adhesion of the joints is insufficient, and gaps may exist at the ends. On the other hand, the laser welding method has the advantage of instantaneous welding, but on the other hand, the laser beam travels in a very straight line and has an extremely small macrofocal point. If there is a gap at the joint with the battery lid (5), the laser beam will pass through the gap and the joint will not be welded, and the inside of the battery will heat up due to the laser beam that passed through, causing the electrolyte to leak. There is a concern that inconveniences such as blowing may occur.

未発明は従来の上記問題を解消すべくなされたものであ
り、以下その一実施例を図面に基づき説明する。′ まず、従来と同じように、発電素体（２）を内蔵した電
池缶（１）の開口縁（１１）に電池蓋（５）の立上り周
縁（５１）を移合し、ついで第２図に示すように電池な
治具（６）に固定する。この治具（６）は、レーザ光（
７）の照射方向と折子の角度（α）をもって傾けられて
いる。すなわち、第３図に示すようζニレーザ光（７）
が開口縁０１１と立上り周縁（５１）との接合面と所定
角度（α）をもって照射されるようになっている。そし
て、前記治具（６）に固定された電池の開口縁Ｇ刀と立
上り周縁（５１）との接合部に、レーザ光（７）を照射
すれば、第４図に示すように、電池缶（１）の開口＆ａ
１１及び電池Ｗ（５）の立上り周縁（５］）が溶融して
、溶着部（８）が形成され封口される。The present invention has been made to solve the above-mentioned conventional problems, and one embodiment thereof will be described below with reference to the drawings. ' First, as in the conventional case, the rising edge (51) of the battery cover (5) is fitted to the opening edge (11) of the battery can (1) containing the power generation element (2), and then Fix it to the battery jig (6) as shown in the figure. This jig (6) uses a laser beam (
7) is tilted at an angle (α) between the irradiation direction and the folding plate. That is, as shown in Fig. 3, the ζni laser beam (7)
is irradiated at a predetermined angle (α) with respect to the joint surface between the opening edge 011 and the rising edge (51). Then, if the laser beam (7) is irradiated to the joint between the opening edge G of the battery fixed to the jig (6) and the rising edge (51), the battery can can be fixed as shown in FIG. (1) Opening &a
11 and the rising edge (5]) of the battery W (5) are melted to form a welded part (8) and sealed.

本発明法によると、レーザ光は電池缶の開口縁と電池蓋
の立上り周縁との接合面とは異なった方向から照射され
るので、たとえ、電池缶と電池蓋との接合部の密着性が
不充分であっても、レーザ光は電池缶または電池蓋のい
ずれかの部分には必ず到達して、その部分を溶融して・
接合部の溶接が確実に行なえるとともに、レーザ光が直
接電池内に照射されることがなくなり、電池内が発熱し
て、電解液などが吹出すといった不都合を解消しうるも
のであり、この種電池の封口方法においてその工業的価
値は極めて大である。According to the method of the present invention, the laser beam is irradiated from a direction different from the joint surface between the opening edge of the battery can and the rising edge of the battery lid, so even if the adhesiveness of the joint between the battery can and the battery lid is Even if the laser light is insufficient, it will always reach some part of the battery can or battery cover and melt that part.
In addition to being able to reliably weld joints, the laser light is not directly irradiated into the battery, which eliminates the inconvenience of heat generation inside the battery and electrolyte etc. blowing out. Its industrial value in the battery sealing method is extremely large.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本発明法が適用される電池の縦断面図、３図は
本発明法を説明するための接合部の拡大断面図、第４図
は本発明法による溶着部を示す断面図である。 （１）・・・電池缶％（５）・・・電池蓋、（７）・・
・レーザ光。 第１図 り 第２図 第３図 第４図Figure 1 is a longitudinal cross-sectional view of a battery to which the method of the present invention is applied, Figure 3 is an enlarged cross-sectional view of a joint to explain the method of the present invention, and Figure 4 is a cross-sectional view showing a welded part by the method of the present invention. be. (1)...Battery can% (5)...Battery cover, (7)...
・Laser light. Figure 1 Figure 2 Figure 3 Figure 4

Claims (1)

【特許請求の範囲】[Claims] （１）電池缶の開口縁に電池蓋の立上り周縁を嵌合し％
前記開口縁と立上り周縁との接合部に、前記開口縁と立
上り周縁との接合面とは異なった方向からレーザ光を照
射して、溶接することを特徴とする電池の封口方法。(1) Fit the rising edge of the battery cover to the opening edge of the battery can.
A method for sealing a battery, characterized in that the joining portion between the opening edge and the rising edge is irradiated with a laser beam from a direction different from the joining surface between the opening edge and the rising edge for welding.
JP56109581A 1981-07-13 1981-07-13 Sealing of battery Pending JPS5810364A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56109581A JPS5810364A (en) 1981-07-13 1981-07-13 Sealing of battery

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56109581A JPS5810364A (en) 1981-07-13 1981-07-13 Sealing of battery

Publications (1)

Publication Number Publication Date
JPS5810364A true JPS5810364A (en) 1983-01-20

Family

ID=14513891

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56109581A Pending JPS5810364A (en) 1981-07-13 1981-07-13 Sealing of battery

Country Status (1)

Country Link
JP (1) JPS5810364A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61285655A (en) * 1985-06-12 1986-12-16 Hitachi Maxell Ltd Manufacture of thin enclosed cell
WO1999017386A1 (en) * 1997-09-30 1999-04-08 Matsushita Electric Industrial Co., Ltd. Method of manufacturing a rectangular battery
WO2000025374A1 (en) * 1998-10-27 2000-05-04 Matsushita Electric Industrial Co., Ltd. Method for producing square cell
US6264708B1 (en) 1997-09-30 2001-07-24 Matsushita Electric Industrial Co., Ltd. Method of manufacturing a prismatic battery
KR100489017B1 (en) * 1999-12-27 2005-05-11 에스케이씨 주식회사 the Method of Sealing Covered Battery
JP2015011948A (en) * 2013-07-02 2015-01-19 日立オートモティブシステムズ株式会社 Battery, and method for manufacturing battery

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4024014Y1 (en) * 1964-08-24 1965-08-16
JPS54147459A (en) * 1978-05-11 1979-11-17 Gte Sylvania Inc Container for battery

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4024014Y1 (en) * 1964-08-24 1965-08-16
JPS54147459A (en) * 1978-05-11 1979-11-17 Gte Sylvania Inc Container for battery

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61285655A (en) * 1985-06-12 1986-12-16 Hitachi Maxell Ltd Manufacture of thin enclosed cell
WO1999017386A1 (en) * 1997-09-30 1999-04-08 Matsushita Electric Industrial Co., Ltd. Method of manufacturing a rectangular battery
US6264708B1 (en) 1997-09-30 2001-07-24 Matsushita Electric Industrial Co., Ltd. Method of manufacturing a prismatic battery
KR100471169B1 (en) * 1997-09-30 2005-03-07 마츠시타 덴끼 산교 가부시키가이샤 Method of manufacturing a rectangular battery
WO2000025374A1 (en) * 1998-10-27 2000-05-04 Matsushita Electric Industrial Co., Ltd. Method for producing square cell
US6627348B1 (en) 1998-10-27 2003-09-30 Matsushita Electric Industrial Co., Ltd. Method for producing rectangular cell
KR100489017B1 (en) * 1999-12-27 2005-05-11 에스케이씨 주식회사 the Method of Sealing Covered Battery
JP2015011948A (en) * 2013-07-02 2015-01-19 日立オートモティブシステムズ株式会社 Battery, and method for manufacturing battery

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