JPS59139550A - Method for manufacturing cylindrical cell - Google Patents

Method for manufacturing cylindrical cell

Info

Publication number
JPS59139550A
JPS59139550A JP58001977A JP197783A JPS59139550A JP S59139550 A JPS59139550 A JP S59139550A JP 58001977 A JP58001977 A JP 58001977A JP 197783 A JP197783 A JP 197783A JP S59139550 A JPS59139550 A JP S59139550A
Authority
JP
Japan
Prior art keywords
stepped portion
opening
sealing plate
cell
inwardly
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
JP58001977A
Other languages
Japanese (ja)
Inventor
Koji Fujita
宏次 藤田
Shintaro Suzuki
信太郎 鈴木
Yoshiaki Asami
阿佐美　義明
Fumiko Honma
本間　富美子
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.)
FDK Twicell Co Ltd
Original Assignee
Toshiba Battery 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 Toshiba Battery Co Ltd filed Critical Toshiba Battery Co Ltd
Priority to JP58001977A priority Critical patent/JPS59139550A/en
Publication of JPS59139550A publication Critical patent/JPS59139550A/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
    • H01M50/148—Lids or covers characterised by their shape
    • H01M50/154—Lid or cover comprising an axial bore for receiving a central current collector
    • 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 provide a cell having an improved storage performance and a better leakproof characteristic, first by mounting a sealing plate on a stepped portion which is previously prepared in a smaller size and then by bending the portion at the opening of the cell case inwardly and, at the same time, making the stepped portion larger, thereby attaining a complete seal. CONSTITUTION:A smaller size of stepped portion 6' which just receives a sealing plate thereon is provided at the lower part of the opening 5 of a cell case 4, and a sealing plate 8 provided with a positive-pole terminal 7 therein is mounted on the stepped portion 6'. Then, the portion at the opening of the cell case 4 is bent and caulked inwardly, and, at the same time, the upper supporting member 9 is pushed inwardly thereby to form a larger stepped portion 6 of a predetermined size. At the time the stepped portion 6 is formed, the bottom and the periphery of the cylindrical cell is pressed by the lower supporting member 10 inwardly and receive a caulking pressure together with the stepped portion 6, whereby, at the same time as the portion at the opening is caulked, the stepped portion is larged bulged inwardly by the upper supporting member to a predetermined size. Since the entire surface of the cell is supported by the lower supporting member, the caulking pressure does not escape to any other place and strongly acts on the sealing plate both from above and from below. Thus, the leakproof characteristic, storage performance, etc. of the cell are improved.

Description

【発明の詳細な説明】 本発明は円筒形電池の封口方法の改良に関するものであ
る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a method for sealing a cylindrical battery.

従来の円筒形電池は、発磁要素全収納した電池ケースの
開口部の下方近傍に、内方へ張り出すように環状段部を
設け、該段部に封口板全載置し、開口部全内方に折曲し
てかしめて封口していた。In conventional cylindrical batteries, an annular step is provided near the bottom of the opening of the battery case in which all the magnetizing elements are housed so as to project inward, and the entire sealing plate is placed on the step. It was bent inward and crimped to seal it.

このため、上記段部は帯状の正極と負極とセパソータを
介して渦巻き状に巻き回わしてなる発磁要素が、振動等
で動かないように支持体の役割をはたし、また、開口部
をかしめる時の受は台の役割もしていた。Therefore, the stepped portion serves as a support to prevent the magnetizing element, which is formed by spirally winding the band-shaped positive and negative electrodes and a separator, from moving due to vibrations, etc., and also serves as a support for the opening. The receiver also served as a stand when caulking.

しかし、従来は電池ケース開口部を内方へ折曲する時、
強く封口すると開口部近傍に設けられた段部が変形して
しまい結局封口板の圧縮率を上げることができなかった
。さらに変形が激しい場合には、封口板と一本形成され
ている正極端子が発４要素金圧迫して内部短絡等奮起こ
したりした。However, conventionally, when bending the battery case opening inward,
If the sealing plate is strongly sealed, the step provided in the vicinity of the opening is deformed, making it impossible to increase the compression ratio of the sealing plate. If the deformation was severe, the positive electrode terminal, which was formed as a single piece with the sealing plate, would press against the four-element metal, causing an internal short circuit.

一方段部が変形しない様に折曲圧力を下げると、封目板
と４池ケースの密着が不充分になってしまい、いｒれも
充分な封口が得られなかった。On the other hand, if the bending pressure was lowered so as not to deform the stepped portion, the sealing plate and the four-pond case would not come into close contact with each other, and a sufficient seal could not be obtained in either case.

本発明は段部金子め小さく形成し、封口板を載置し、電
池ケースの開口部を内方に折曲するときと同時に、該段
部を大さく形成することによシ、完全な封口金得て、貯
蔵性能、耐漏液性能の憂れた電池を得ることを目的とし
ている。According to the present invention, the step part is made smaller, a sealing plate is placed thereon, and the step part is made larger at the same time as the opening of the battery case is bent inward, thereby achieving complete sealing. The aim is to make money and obtain batteries that have poor storage performance and leakage resistance.

以丁本発明の一実施例ｄ池を図面に基づいて説明する。One embodiment of the present invention will now be described with reference to the drawings.

ケース４内に収納する。次に１池ケース４の開口部５の
下方近傍に封口板の載る程度の小さい段部６′ヲ形成す
る。この段部６′に正極端子７を備えた封口板８を載置
する。次に電池ケース４の開口部５全内方に折曲してか
しめるのと同時に、上支持体９を内方へ押出して第１図
のような所定の大きな段部６を形成する。段部６の形成
時に下支持体１０で円筒形電池の底部と側面部を押え、
段部６と共にかしめ圧を受けている。Store it in case 4. Next, a small step 6' is formed near the bottom of the opening 5 of the single-cell case 4, on which a sealing plate can rest. A sealing plate 8 provided with a positive electrode terminal 7 is placed on this stepped portion 6'. Next, the entire opening 5 of the battery case 4 is bent inward and caulked, and at the same time, the upper support 9 is pushed inward to form a predetermined large step 6 as shown in FIG. When forming the stepped portion 6, press the bottom and side portions of the cylindrical battery with the lower support 10,
Together with the stepped portion 6, it is subjected to caulking pressure.

本発明は開口部のかしめと同時に上支持体で段部を大き
く所定の寸法まで張フ出し、下支持体で′シ池全本全支
持しているので、かしめ圧を逃がさず、かつ、封目板を
上下から強圧することになり、耐漏液性能、保存性能等
を同上できる。In the present invention, at the same time as the opening is caulked, the upper support member extends the stepped portion to a predetermined size, and the lower support body fully supports the entire reservoir, so that the caulking pressure is not released and the seal is sealed. Strong pressure is applied to the battens from above and below, improving leakage resistance and storage performance.

次に本発明の渦巻式円筒形非水峨解液鴫池の一実施例電
池（Ａ）と、従来法による同形電池ＣＢ）と？比較する
。総高３３．０ｍｍ、外径１６．５ｍｍの形状の非水電
池の本発明４池〔Ａ’）と従来゛電池［Ｂ）とを、それ
ぞれ２００個製造し、かしめた後段部の変形による不良
′（ｉ−調査した詰釆を表に示した。Next, what is an embodiment of the spiral cylindrical non-aqueous lysate battery (A) of the present invention and the same type battery CB) made by a conventional method? compare. We manufactured 200 each of the four non-aqueous batteries of the present invention [A') and the conventional battery [B], each having a total height of 33.0 mm and an outer diameter of 16.5 mm, and found that they were defective due to deformation of the rear section after caulking. '(i-The investigated containers are shown in the table.

表 また所定形状・Ｅ池〔Ａ）　、　［Ｂ）を５０個ずつ６
０℃で貯蔵し、礒池重量の変化を第象図に示す。In addition, 50 pieces each of E ponds [A] and [B) of the specified shape 6
It was stored at 0°C, and the change in weight of the Isoike is shown in the diagram.

表より明らかな様に本発明品は全て所定寸法に亡き上り
、段部変化による不良を完全になくすこλ とができる。一方第入図に示めされた重量減は、１池内
部からの電解液の飛散瀘全示しており、本発明４池は、
従米磁池に較べ、重量減が非膚に少なく、封口性が大巾
に向上していることがわかる。As is clear from the table, all of the products of the present invention have a predetermined size, and defects caused by changes in the step portion can be completely eliminated. On the other hand, the weight loss shown in the first drawing indicates the scattering of the electrolyte from inside the first pond, and the fourth pond of the present invention is
It can be seen that the weight loss is extremely small and the sealing performance is greatly improved compared to the conventional porcelain pond.

このため優れた貯蔵性能、耐漏液性能の円筒形電池が得
られる。Therefore, a cylindrical battery with excellent storage performance and leakage resistance can be obtained.

以上のように、（池ケースの開口部近傍に予め小さく段
部ｒ形成し、封目板を載置し、開口部全内側に折曲する
のと同時に上支持体で、再び段部を所定の大きさに形成
することにより、完全゛封口金得て、貯蔵性能、耐漏液
性能の擾几た円筒形電池金得ることができる。As described above, (a small step r is formed in advance near the opening of the pond case, a sealing plate is placed, the opening is bent completely inside, and at the same time, the upper support is used to set the step again in a predetermined manner. By forming the cylindrical battery metal to the size of , it is possible to obtain a complete sealing cap and obtain a cylindrical battery metal with excellent storage performance and leakage resistance performance.

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

第１図は本発明の実施例である円筒形非水、遂解液礁池
の半載断面図で、第２図は電解液の飛散量の比較図であ
る。 ４・・′電池ケース　　　５　・開口部６　段部　　　
　　　８　封口板 ９　・上支持体　　　　１０　　Ｆ支持体特許出願人の
名称 第１図 ０　　　　　２０　　　　４０　　　　　４０　　　　
５１０　　　　１００Ｈ？Ｊ龜已数（５）FIG. 1 is a half-mounted sectional view of a cylindrical non-aqueous liquid reef pond according to an embodiment of the present invention, and FIG. 2 is a comparison diagram of the amount of electrolyte splashed. 4...'Battery case 5 ・Opening 6 Stepped part
8 Sealing plate 9 ・Upper support 10 F support Patent applicant name Figure 1 0 20 40 40
510 100H? J Kakumi number (5)

Claims (1)

【特許請求の範囲】 円筒状４池ケースに′電池発成要素を収納し、電池ケー
スの開口部近傍に、内側に張りだす形状の段部を形成し
、段部に封口板を載置し％電池ケース開口部を内側に折
曲して封口してなる円筒形電池において、 該段部金子め小石く形成し、封口板を載置し、′電池ケ
ースの開口部を内側に折曲するのと同時に、再び該段部
音大きく形成すること全特徴とする円筒形電池の製造方
法。[Scope of Claims] A battery generating element is housed in a cylindrical four-cell case, a stepped portion extending inward is formed near the opening of the battery case, and a sealing plate is placed on the stepped portion. % In a cylindrical battery formed by bending the opening of the battery case inward and sealing it, the stepped part is shaped like a pebble, a sealing plate is placed on it, and the opening of the battery case is bent inward. At the same time, the step part is again made louder.
JP58001977A 1983-01-10 1983-01-10 Method for manufacturing cylindrical cell Pending JPS59139550A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP58001977A JPS59139550A (en) 1983-01-10 1983-01-10 Method for manufacturing cylindrical cell

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58001977A JPS59139550A (en) 1983-01-10 1983-01-10 Method for manufacturing cylindrical cell

Publications (1)

Publication Number Publication Date
JPS59139550A true JPS59139550A (en) 1984-08-10

Family

ID=11516596

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58001977A Pending JPS59139550A (en) 1983-01-10 1983-01-10 Method for manufacturing cylindrical cell

Country Status (1)

Country Link
JP (1) JPS59139550A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0795915A3 (en) * 1996-03-13 1998-09-30 Matsushita Electric Industrial Co., Ltd. Flat elliptical battery case can having an annular groove to support a sealing plate, a method and an apparatus for manufacture of the same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0795915A3 (en) * 1996-03-13 1998-09-30 Matsushita Electric Industrial Co., Ltd. Flat elliptical battery case can having an annular groove to support a sealing plate, a method and an apparatus for manufacture of the same
US6125677A (en) * 1996-03-13 2000-10-03 Matsushita Electric Industrial Co., Ltd. Apparatus for processing battery case can, a battery, and a manufacturing method of battery

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