JPS59175553A - Cylindrical type battery and its manufacturing method - Google Patents
Cylindrical type battery and its manufacturing methodInfo
- Publication number
- JPS59175553A JPS59175553A JP58049425A JP4942583A JPS59175553A JP S59175553 A JPS59175553 A JP S59175553A JP 58049425 A JP58049425 A JP 58049425A JP 4942583 A JP4942583 A JP 4942583A JP S59175553 A JPS59175553 A JP S59175553A
- Authority
- JP
- Japan
- Prior art keywords
- container
- sealing plate
- opening
- battery
- deforming
- 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
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 7
- 238000007789 sealing Methods 0.000 claims abstract description 28
- 238000005452 bending Methods 0.000 claims abstract description 9
- 238000000034 method Methods 0.000 claims description 5
- 238000010248 power generation Methods 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 230000006835 compression Effects 0.000 abstract description 3
- 238000007906 compression Methods 0.000 abstract description 3
- 239000003792 electrolyte Substances 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000008151 electrolyte solution Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000004580 weight loss Effects 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
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
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は、封口を改良した円筒形電池及びその製造方法
に関する。、
従来、円筒形電池は、第１図に示すように有底円筒形電
池容器１に発電要素２を収納した後、同容器Ｉの開口部
外周に内側に突出するように段部３を形成し、この段部
３に封口板４を載置し、しかる後開口端を内側に折曲げ
て封口している。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a cylindrical battery with an improved seal and a method for manufacturing the same. Conventionally, in a cylindrical battery, a power generation element 2 is housed in a bottomed cylindrical battery container 1 as shown in FIG. A sealing plate 4 is then placed on this stepped portion 3, and then the open end is bent inward and sealed.
しかしこの電池は、容器Ｉの開口端を折曲げる際、折曲
圧力を上げると開口部近傍に設けられた段部３が変形し
てしまう。このため封口板４の圧縮率を上げることがで
き、ないとともに変形が激しい場合、封口板４及びこれ
と一体に設けた一極端子５が発電要素２を圧迫して内部
短絡等をおこす問題がある。一方段部３が変形しないよ
う折曲圧力を下げると、封口板４と容器Ｉの密着が不十
分になってしまい、いずれにしても十分な封口が得られ
ない。However, in this battery, when the opening end of the container I is bent, if the bending pressure is increased, the stepped portion 3 provided near the opening becomes deformed. Therefore, the compression ratio of the sealing plate 4 can be increased, and if there is no sealing plate 4 and the deformation is severe, the problem that the sealing plate 4 and the one-pole terminal 5 provided integrally with it may press against the power generating element 2 and cause an internal short circuit etc. can be avoided. be. On the other hand, if the bending pressure is lowered so as not to deform the stepped portion 3, the sealing plate 4 and the container I will not come into close contact with each other, and a sufficient sealing will not be obtained in any case.
本発明は、上記事情に鑑みてなされたもので、その目的
とするところは、折曲圧力を上げても段部が変形せず、
十分な封口を得ることができる円筒形電池及びその製造
方法を得んとするものである。The present invention has been made in view of the above circumstances, and its purpose is to prevent the stepped portion from deforming even if the bending pressure is increased.
The object of the present invention is to provide a cylindrical battery capable of obtaining a sufficient seal and a method for manufacturing the same.
すなわち本発明は、封口板の外周面に条溝を形成し、同
条溝に段部を嵌入形成する成形型で折曲圧力を受けるよ
うにし、更に得られた電池が条溝に段部を嵌入した構造
とすることを特徴 、とする。That is, in the present invention, grooves are formed on the outer circumferential surface of the sealing plate, and bending pressure is applied by a mold that fits and forms steps into the grooves, and the resulting battery has steps formed in the grooves. It is characterized by having an inlaid structure.
以下本発明を図面を参照して説明する。The present invention will be explained below with reference to the drawings.
第２図は本発明に係る円筒形電池の半裁図である。この
電池は、有底円筒形電池容器Ｉ内に、正極６と負極７と
をセパレータ８を介して渦巻状に巻回した発電要素２を
収納し、電解液を入れ、−極端子５と一体形成された封
口板４で密閉している。FIG. 2 is a half-cut view of a cylindrical battery according to the present invention. In this battery, a power generating element 2 in which a positive electrode 6 and a negative electrode 7 are spirally wound with a separator 8 in between is housed in a bottomed cylindrical battery container I, an electrolytic solution is put therein, and a negative electrode terminal 5 is integrated with the battery container I. It is sealed with a formed sealing plate 4.
上記封口板４は、外周面にその円周方向に沿う条溝９を
形成している。また電池容器Ｉの開口部外周に第１段部
３及び第２段部ｒｏを電池容器Ｉの内側へ突出するよう
に形成している。The sealing plate 4 has grooves 9 formed on its outer peripheral surface along the circumferential direction thereof. Further, a first step portion 3 and a second step portion ro are formed on the outer periphery of the opening of the battery container I so as to protrude into the inside of the battery container I.
第１段部３は、封口板４を載置するもので、又第２段部
１０は条溝９内に嵌入している。なお図中ＩＩ、１２は
絶縁板である。The first step portion 3 is for placing the sealing plate 4, and the second step portion 10 is fitted into the groove 9. Note that II and 12 in the figure are insulating plates.
この構造の円筒形電池は、次のようにして製造される。A cylindrical battery having this structure is manufactured as follows.
まず有底円筒形電池容器Ｉ内に発電要素２を収納し、電
解液を入れる。次いで電池容器Ｉの開口部外周を所定の
成形型を用いて変形せしめて第１段部３を形成し、この
上に第３図に示すように封口板４を載置する。次いで第
４図に示すように開口部外周を所定の成形型１３を用い
て変形せしめて封口板４の条溝９に嵌入させ、第２段部
ＩＯを形成する。この形成工程と同時に電池容器Ｉの開
口端を内側に折曲成形する。First, the power generation element 2 is housed in a bottomed cylindrical battery container I, and an electrolytic solution is poured therein. Next, the outer periphery of the opening of the battery container I is deformed using a predetermined mold to form a first step 3, on which a sealing plate 4 is placed as shown in FIG. Next, as shown in FIG. 4, the outer periphery of the opening is deformed using a predetermined mold 13 and fitted into the groove 9 of the sealing plate 4, thereby forming the second step portion IO. Simultaneously with this forming step, the open end of the battery container I is bent inward.
この製造方法によれは、成形型Ｉ３を第２段部ＩＯを介
して条溝９内に挿入した状態で、開口端を折曲げるので
、折曲圧力をこの成形型Ｉ３で受ける。このため第１段
部３が変形することなく圧縮率を上げることかでき、封
口板４と容器Ｉの密着を十分なものとすることができる
。According to this manufacturing method, the opening end is bent while the mold I3 is inserted into the groove 9 via the second step IO, so that the mold I3 receives bending pressure. Therefore, the compression ratio can be increased without deforming the first stage portion 3, and the sealing plate 4 and the container I can be brought into close contact with each other sufficiently.
更にこの方法で得られた電池は、条尋９に第２段部ＩＯ
を嵌入した構造であるので、その分だけ電池容器Ｉと封
口板４との接触部分が大きくなり、電池内部から外部へ
電解液が逸散するための経路が長くなるっ従って耐漏液
性に対して有利となる。Furthermore, the battery obtained by this method has a second stage IO in Article 9.
Since the structure has a structure in which the battery container I and the sealing plate 4 are fitted, the contact area between the battery container I and the sealing plate 4 becomes larger, and the path for the electrolyte to escape from the inside of the battery to the outside becomes longer. It will be advantageous.
次に本発明の実施例につき説明する。Next, examples of the present invention will be described.
実施例１
封口板に条溝を形成し、電池容器に第２段部を形成した
外径１５．５１１ｆｄ、総高３３．０ ＋ｕｒの渦巻式
円筒形電池（本発明電池Ａ）を２００個作製した。これ
と比較するために条溝及び第２段部を形成しない従来の
渦巻式円筒形電池Ｂを２００個作製した。Example 1 200 spiral-type cylindrical batteries (battery A of the present invention) with an outer diameter of 15.511 fd and a total height of 33.0 + ur were manufactured by forming grooves on the sealing plate and forming a second step on the battery container. did. For comparison, 200 conventional spiral cylindrical batteries B without grooves and second step portions were manufactured.
これら電池の不良発生数を調べた結果、第１表に示す通
りであった。The results of investigating the number of defects in these batteries are shown in Table 1.
第１表
上表中、従来電池で生じた不良品は、段部の変形が明ら
かで、総高が所定の３３． ＯＫＩｎとならなかったも
のである。このうち８個は電圧が出す、それを分解調査
した結果、封口板が電極群を押しつけ、内部短絡をおこ
していることが判明した。In the above table of Table 1, the defective products caused by the conventional batteries had obvious deformation of the step part and the total height was 33. This was not OKIn. Eight of them emitted voltage, and after disassembling them, it was discovered that the sealing plate was pressing against the electrode group, causing an internal short circuit.
実施例２
実施例１の本発明電池Ａ及び従来電池Ｂをそれぞれ１０
０個用意して、６０’Ｃ，−乾燥の環境で貯蔵した。そ
の時の電池のｍＭ減を第５図にＡ、Ｂで示す。Example 2 10 each of the present invention battery A and the conventional battery B of Example 1
0 pieces were prepared and stored in a dry environment at 60'C. The loss of mM in the battery at that time is shown in FIG. 5 by A and B.
＠５図から本発明電池ＡＦｉ、従来電池Ｂに比べて重量
減、即ち電解液の逸散が少なく、耐漏液性が非常に優れ
ていることがわかった。From Fig. 5, it was found that the battery AFi of the present invention has a weight reduction, that is, less electrolyte dissipation than the conventional battery B, and has very good leakage resistance.
以上の説明から明らかなように本発明にょれは、製造時
における段部の変形や短絡がなく、しかも十分な封口を
得ることができる顕著な効果を奏する。As is clear from the above description, the method of the present invention has the remarkable effect that there is no deformation or short circuit of the stepped portion during manufacturing, and that sufficient sealing can be obtained.
第１図は従来の円筒形電池の半裁図、第２図は本発明の
一実施例を示す円筒形電池の半裁図、第３図及び第４図
は同電池の製造工程を順に示す袈部拡犬図、第５図は本
発明に係る電池の貯蔵による重量減を従来電池のものと
比較して示す特性図である。
Ｉ・・・電池容器、２・・・発電、要素、３・・・段部
（第１段部）、４・・・封口板、５・・・−極端子、６
・・・正極、７・・・負極、８・・・セパレータ、９・
・・条溝、１０・・・第２段部、１１．１２・・・絶縁
板、Ｉ３・・・成形型。
出願人代理人 弁理士 鈴 圧式 彦
第１図
第２図
第３図
第４因
ぢFIG. 1 is a half-cut diagram of a conventional cylindrical battery, FIG. 2 is a half-cut diagram of a cylindrical battery showing an embodiment of the present invention, and FIGS. 3 and 4 are sectional views showing the manufacturing process of the battery in order. An enlarged view of FIG. 5 is a characteristic diagram showing the weight loss due to storage of the battery according to the present invention in comparison with that of a conventional battery. I...Battery container, 2...Power generation, element, 3...Step part (first step part), 4...Sealing plate, 5...-Pole terminal, 6
...Positive electrode, 7...Negative electrode, 8...Separator, 9.
...Groove, 10...Second step part, 11.12...Insulating plate, I3...Molding mold. Applicant's agent Patent attorney Hiko Rin Ushiki Figure 1 Figure 2 Figure 3 Figure 4
Claims (1)
容器の開口部内に封口板を取付けて、同容器の開口端を
内側に折曲げた円筒形電池において、上記封目板の外周
面にその円周方向に沿う条溝を形成し、かつ電池容器の
開口部外周に、同容器の内側へ突出すゐ封目板載置用第
１段部及び条清嵌入用第２段部ｆ：順に形成したことを
特徴とする円筒形電池つ （２）有底円筒形電池容器に発電要素を収納した後、同
容器の開口部に、内側に突出する第１段部を形成して、
外周面にその円周方向に沿う条溝を形成′した封口板を
載置し、しかる後容器開口部外周を条無内に嵌入して第
２段部を形成すると同時に同容器の開口端を内側に折曲
げることを特徴とする円筒形電池の製造方法。[Scope of Claims] (l+ A cylindrical battery in which a power generating element is housed in a bottomed cylindrical battery container, a sealing plate is attached to the opening of the container, and the open end of the container is bent inward. A groove is formed along the circumferential direction on the outer peripheral surface of the sealing plate, and a first stage part for placing the sealing plate and a groove are fitted on the outer periphery of the opening of the battery container, which protrudes into the inside of the battery container. (2) After storing a power generation element in a bottomed cylindrical battery container, a first stage portion f that protrudes inward is inserted into the opening of the container. forming a section,
A sealing plate with grooves formed along the circumferential direction is placed on the outer circumferential surface, and then the outer periphery of the opening of the container is fitted into the grooves to form the second step, and at the same time the opening end of the container is closed. A method for manufacturing a cylindrical battery characterized by bending it inward.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58049425A JPS59175553A (en) | 1983-03-24 | 1983-03-24 | Cylindrical type battery and its manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58049425A JPS59175553A (en) | 1983-03-24 | 1983-03-24 | Cylindrical type battery and its manufacturing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59175553A true JPS59175553A (en) | 1984-10-04 |
Family
ID=12830732
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58049425A Pending JPS59175553A (en) | 1983-03-24 | 1983-03-24 | Cylindrical type battery and its manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59175553A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008227472A (en) * | 2007-02-14 | 2008-09-25 | Matsushita Electric Ind Co Ltd | Capacitor |
| FR2986656A1 (en) * | 2012-02-07 | 2013-08-09 | Batscap Sa | DEVICE AND METHOD FOR MANUFACTURING AN ELECTRIC ENERGY STORAGE ASSEMBLY |
-
1983
- 1983-03-24 JP JP58049425A patent/JPS59175553A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008227472A (en) * | 2007-02-14 | 2008-09-25 | Matsushita Electric Ind Co Ltd | Capacitor |
| US8537526B2 (en) | 2007-02-14 | 2013-09-17 | Panasonic Corporation | Cylindrical capacitor employing electrolyte solution |
| FR2986656A1 (en) * | 2012-02-07 | 2013-08-09 | Batscap Sa | DEVICE AND METHOD FOR MANUFACTURING AN ELECTRIC ENERGY STORAGE ASSEMBLY |
| WO2013117651A1 (en) * | 2012-02-07 | 2013-08-15 | Batscap | Method for manufacturing a unit for storing electrical energy |
| WO2013117654A1 (en) * | 2012-02-07 | 2013-08-15 | Batscap | Cover for an energy storage unit, energy storage unit comprising said cover, and method for manufacturing such an energy storage unit |
| CN104094441A (en) * | 2012-02-07 | 2014-10-08 | 布鲁技术公司 | Cover for an energy storage unit, energy storage unit comprising said cover, and method for manufacturing such an energy storage unit |
| CN104094442A (en) * | 2012-02-07 | 2014-10-08 | 布鲁技术公司 | Method for manufacturing a unit for storing electrical energy |
| CN104094441B (en) * | 2012-02-07 | 2016-06-01 | 布鲁技术公司 | For the envelope lid of energy storage units, the energy storage units comprising described envelope lid and the manufacture method for such energy storage units |
| US9490078B2 (en) | 2012-02-07 | 2016-11-08 | Blue Solutions | Cover for an energy storage unit, energy storage unit comprising said cover, and method for manufacturing such an energy storage unit |
| US9502184B2 (en) | 2012-02-07 | 2016-11-22 | Blue Solutions | Method for manufacturing a unit for storing electrical energy |
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