JPS58158857A - Manufacturing method for sealed type battery - Google Patents
Manufacturing method for sealed type batteryInfo
- Publication number
- JPS58158857A JPS58158857A JP57040244A JP4024482A JPS58158857A JP S58158857 A JPS58158857 A JP S58158857A JP 57040244 A JP57040244 A JP 57040244A JP 4024482 A JP4024482 A JP 4024482A JP S58158857 A JPS58158857 A JP S58158857A
- Authority
- JP
- Japan
- Prior art keywords
- battery
- battery container
- container
- flange section
- end edge
- 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 6
- 230000001105 regulatory effect Effects 0.000 claims abstract description 6
- 238000000034 method Methods 0.000 claims description 18
- 229910052751 metal Inorganic materials 0.000 claims description 7
- 239000002184 metal Substances 0.000 claims description 7
- 238000003466 welding Methods 0.000 abstract description 21
- 230000002093 peripheral effect Effects 0.000 abstract description 3
- 239000003792 electrolyte Substances 0.000 description 7
- 239000007788 liquid Substances 0.000 description 5
- 239000011521 glass Substances 0.000 description 4
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 3
- 229910052744 lithium Inorganic materials 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229910000963 austenitic stainless steel Inorganic materials 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 230000001678 irradiating effect Effects 0.000 description 2
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 239000011149 active material Substances 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel 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
- H01M50/166—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
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、例えばリチウム電池やアルカリ電池などのよ
うな有機液体や水溶液かとを電解液として用いる密閉形
電池に係り、特にそれの電池容器と電池蓋の溶接部に関
するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a sealed battery such as a lithium battery or an alkaline battery that uses an organic liquid or an aqueous solution as an electrolyte, and particularly relates to a welded portion between a battery container and a battery lid. It is.
第１図は、この櫨電池の組立工程を説明するための図で
ある。陰極端子を兼ねる電池容器ｌの内側には、例えば
リチウムからなる陰極２と、二酸化マンガンを主体とす
る１ｍ）他３と、両者間に介在されたセパレータ４とが
装填され、電池容器ｌの開口部は電池ＩＩ５で封口され
ている。電池蓋５の中央部にはガラス層６を介して集電
体７が支持され、集電体７０大部分は陰極３に埋設され
ている。FIG. 1 is a diagram for explaining the assembly process of this Haji battery. The inside of the battery container l, which also serves as a cathode terminal, is loaded with a cathode 2 made of, for example, lithium, a cathode 3 mainly made of manganese dioxide, and a separator 4 interposed between the two. The section is sealed with battery II5. A current collector 7 is supported in the center of the battery lid 5 via a glass layer 6, and most of the current collector 70 is buried in the cathode 3.
電池Ｉｆ５と集電体７はガラス層６によって電気的に絶
縁されているから、電池蓋５の外周部と電池容器１の上
端開口部とはその全周にわたって溶接により一体に接合
されている。前述の電池蓋５−カラス層６−集電体７の
間におけるメタル−ガラス−メタル接合ならびに電池容
器１−電池１ｉ１５の間におけるメタル−メタル接合に
より、各接合部の気液密性が維持されるようになってい
る。Since the battery If5 and the current collector 7 are electrically insulated by the glass layer 6, the outer periphery of the battery lid 5 and the upper opening of the battery container 1 are integrally joined by welding over the entire circumference. Due to the metal-glass-metal bond between the battery lid 5, the glass layer 6, and the current collector 7, and the metal-metal bond between the battery container 1 and the battery 1i15, the air-liquid tightness of each joint is maintained. It has become so.
ところで、発電要素を内填した電池容器ｌの開口部に電
池蓋５Ｙｔ嵌合して両者を溶接する際、その溶接部は一
瞬の間にせよ金属の融点まで温度上昇する０例えば電池
容器１ならびに電池蓋５の材質がとも−にステンレス鋼
の場合１４００−１５００ ’Ｃに加熱されることにな
り、従って電池容器１の同部もかなシ温度上昇する。そ
のため有機液体など沸点の低い電解液は電池蓋ＳＹｒ電
池容器ＩＫ溶接したのち注入する方が有利である。この
電解液を注入する手段として、電池蓋に予め電解液注入
口を穿設してそこから注入する方法と、第１図に示すよ
うに貫通した中空穴９ｖｒ有するパイプ状の集電体７を
用い、その中空穴９ｔ−電解液注入穴として電解液１０
を注入する方法とがある。前者の方法では、電池蓋の１
つ１つに電解液注入口を穿設する必要があり、工程数が
増えコスト高になる。これに対し後者の方法ではパイプ
状の素材を所定寸法に切断すればよいだけであるから、
量産に適し安価であるばかりでなく、発電要素の内部に
電解液１０を迅速に供給することができるなどの利点を
有している。By the way, when the battery lid 5Yt is fitted into the opening of the battery container 1 containing the power generation element and welded together, the temperature of the welded part rises to the melting point of the metal, even if only for a moment. If the material of the battery cover 5 is stainless steel, it will be heated to 1400-1500'C, and therefore the temperature of the same part of the battery case 1 will also rise. Therefore, it is advantageous to inject an electrolytic solution with a low boiling point, such as an organic liquid, after the battery lid SYr battery container is IK welded. As a means for injecting this electrolyte, there are two methods: one is to drill an electrolyte inlet in the battery lid in advance and inject from there, and the other is to use a pipe-shaped current collector 7 having a hollow hole 9vr passing through it, as shown in FIG. The hollow hole 9t and the electrolyte 10 are used as the electrolyte injection hole.
There is a method of injecting. In the former method, 1 of the battery cover
It is necessary to drill an electrolyte injection port in each one, which increases the number of steps and increases costs. On the other hand, with the latter method, all you have to do is cut the pipe-shaped material to the specified size.
It not only is suitable for mass production and is inexpensive, but also has advantages such as being able to quickly supply the electrolyte 10 inside the power generation element.
第２図および第３図は、従来のこの種電池の電池容器１
と電池蓋５の溶接方法を説明するための図である。第２
図に示す方法では、電池蓋５の外周部に比較的肉薄の外
７ランク部１１が突設されており、それの外径は電池容
器１における開口端縁の外径とほぼ同寸に設計されてい
る。従って電池蓋５で電池容＠１０開口部を閉塞すると
、前記外フランジ部１１で電池容器１の開口端面全体が
覆われた形になる。そしてこの外フランジ部１１の上か
ら例えばレーザービーム１２など全照射することによフ
、゛外フランジ部１１と開口端縁１３との接合部ｔＳ融
して溶接８を行なう方法である。FIGS. 2 and 3 show a battery container 1 of a conventional battery of this type.
FIG. 4 is a diagram for explaining a method of welding the battery lid 5. FIG. Second
In the method shown in the figure, a relatively thin outer rank portion 11 is provided protruding from the outer periphery of the battery lid 5, and its outer diameter is designed to be approximately the same size as the outer diameter of the opening edge of the battery container 1. has been done. Therefore, when the opening of the battery container @10 is closed with the battery lid 5, the entire open end surface of the battery container 1 is covered with the outer flange portion 11. Then, by irradiating the entire surface of the outer flange portion 11 with a laser beam 12, for example, the welding 8 is performed by melting the joint tS between the outer flange portion 11 and the opening edge 13.
しかしこの方法では、外７ランク部１１の厚さｔが余り
厚過ぎると電池容器１の開口端縁まで十分に＠馳せず、
その九めに溶接不良を生じる。一方、外７ランク部１１
の厚さｔが余夛薄過ぎると、溶接の際にその部分が溶融
してなくなり、浴接部付近に孔がおいて気液密性が損な
わｆｌ、諸種の弊害を生じる。However, in this method, if the thickness t of the outer seventh rank part 11 is too thick, it will not reach the opening edge of the battery container 1 sufficiently.
Ninth, welding defects occur. On the other hand, the outer 7 rank part 11
If the thickness t is too thin, that part will melt and disappear during welding, creating holes near the bath contact area, impairing air-liquid tightness, and causing various other problems.
第３図に示す方法は、電池蓋５の外径を電池容器１の開
口端縁１３における内径とほぼ同寸にし、電池蓋５を電
池容器１の開口部に内嵌して、電池容器１の内周部と電
池蓋５の外周部との接合部にレーザービーム１２などを
照射することによって溶接８する方法である。In the method shown in FIG. 3, the outer diameter of the battery lid 5 is made approximately the same as the inner diameter at the opening edge 13 of the battery container 1, the battery lid 5 is fitted into the opening of the battery container 1, and the battery container 1 is This is a method of welding 8 by irradiating a laser beam 12 or the like to the joint between the inner peripheral part of the battery cover 5 and the outer peripheral part of the battery cover 5.
ところでこの方法では、溶接の際に電池容器１の内周部
ならびに電池！５の外周部の一部が溶融してなくなるな
め、接合部付近に隙間（ｆｖがおいてレーザービーム１
２が電池容器１の内部まで入り込んでリチウム陰ｆｉ２
などにあたり、活物質の劣化などを生じる。By the way, in this method, when welding, the inner circumference of the battery container 1 and the battery! Since a part of the outer circumference of 5 melts and disappears, a gap (fv) is left near the joint and the laser beam 1
2 enters the inside of the battery container 1 and the lithium negative fi2
etc., resulting in deterioration of the active material.
本発明の目的は、このような従来技術の欠点を解消し、
電池容器と電池蓋の接合部に孔があくようなことがなく
、接合部での溶接が確実に行なわれる密閉形電池の製造
方法を提供するにある。The purpose of the present invention is to eliminate such drawbacks of the prior art,
To provide a method for manufacturing a sealed battery in which no holes are formed at the joint between a battery container and a battery lid, and welding at the joint is reliably performed.
この目的を達成するため、本発明は、金属製電池蓋に外
７ランク部を設け、金属製電池容器の開口部を電池蓋で
閉塞して前記外フランジ部を電池容器の開口端縁に載量
せしめ、外７ランク部と開口端縁とを溶接する密閉形電
池の製造方法において、前記溶接の際に外フランジ部の
外周縁が電池容器開口端縁の内周縁と外周縁との間のほ
ぼ中央に位置するように、電池蓋の外フランジ部と電池
容器の開口端縁との寸法が規制されていることを特徴と
するものである。In order to achieve this object, the present invention provides a metal battery lid with an outer 7-rank portion, closes the opening of the metal battery container with the battery lid, and places the outer flange portion on the edge of the opening of the battery container. In the manufacturing method of a sealed battery in which the outer 7 rank part and the opening edge are welded, the outer periphery of the outer flange part is between the inner periphery and the outer periphery of the battery container opening edge during the welding. It is characterized in that the dimensions of the outer flange of the battery lid and the opening edge of the battery container are regulated so that they are located approximately in the center.
次に本発明の実施例【第４図とともに呂兄明する。Next, an embodiment of the present invention will be explained with reference to FIG.
電池容器１はオーステナイト系ステンレス鋼からなる素
材ｔＳ絞９加工することによって作られ、上方に開口端
ｉｌｌ ３’を有する。電池蓋５もオーステナイト系ス
テンレス鋼から作られ、それの中央透孔にはガラス層６
を介してパイプ状の集電体７が支持されている。電池蓋
５の外周部には従来よりも肉厚の外フランジ部１１が突
設されており、その外フランジ部１１の外周縁が電池容
器１における開口端縁１３の内周縁と外周縁との間のほ
ぼ中央の位置にくるように、外フランジ部１１の外径（
１）２）と、電池容器１における開口端縁１３の内径（
Ｄｌ）と、開口端縁１３の外径（Ｄ３）とがそれぞれ寸
法規制されている。The battery container 1 is made by processing a material tS made of austenitic stainless steel, and has an open end 3' at the top. The battery cover 5 is also made of austenitic stainless steel, with a glass layer 6 in the central hole.
A pipe-shaped current collector 7 is supported through the pipe. An outer flange portion 11 that is thicker than the conventional one is protruded from the outer periphery of the battery lid 5, and the outer periphery of the outer flange portion 11 meets the inner periphery and outer periphery of the opening edge 13 of the battery container 1. The outer diameter of the outer flange portion 11 (
1) 2) and the inner diameter (
Dl) and the outer diameter (D3) of the opening edge 13 are each regulated in size.
これらＤＩ、Ｄ２ならびにＤ３の寸法公差の一例を示せ
ば次の表の通りである。An example of the dimensional tolerances of these DI, D2, and D3 is shown in the following table.
表
を池の他の構成などは、＃！１図を用いて説明し九もの
と同様であるので、それらの説明は省略する。Other configurations of the pond table, etc. #! The explanation will be made using Figure 1, and since it is the same as the nine explanations, the explanation thereof will be omitted.
前記実施例ではレーザービームを用いて溶接を行なった
が、その他の電子ビームやプラズマアークなど他の高エ
ネルギー密度溶接法で溶接を行なうこともできる。Although welding was performed using a laser beam in the above embodiments, welding may also be performed using other high energy density welding methods such as electron beam or plasma arc.
本発明は前述のような構成になっているから。This is because the present invention has the configuration as described above.
電池容器の開口端縁と電池蓋の外フランジ部とにほぼ等
量のエネルギーが与えられるから、溶接不良を生じるこ
とがなく、信頼性の高い浴接ができて優れた気液密性か
得られる。また、外７ランジ部の厚さが規制されないか
ら、溶接の際に孔＜Ｖ間）がおいてレーザービームなど
が電池容器内に入るようなことがなく、電池性能の劣化
が防止できる。Since almost the same amount of energy is applied to the opening edge of the battery container and the outer flange of the battery lid, there is no welding failure, highly reliable bath welding is possible, and excellent air-liquid tightness is achieved. It will be done. Furthermore, since the thickness of the outer 7 flange portions is not restricted, there is no possibility that a hole < V will be formed during welding and a laser beam will enter the battery container, thereby preventing deterioration of battery performance.
第１図は密閉形電池の組立工程全説明する念めの断面図
、第２図および第３因は従来の電池容器と電池蓋の溶接
方法を説明するための要部拡大断面図、第４図は本発明
の実施例に係る電池容器と電池蓋の溶接方法を説明する
念めの要部拡大断面図である。
１・・・電池容器、５・・・電池蓋、８・・・溶接、１
１・・・外フランジ部、１２・・・レーザービーム、１
３・・・開口端縁。
第１図
第３図
第２図
第４図Figure 1 is a cross-sectional view to explain the entire process of assembling a sealed battery, Figures 2 and 3 are enlarged cross-sectional views of important parts to explain the conventional welding method of the battery container and battery lid, and Figure 4 The figure is an enlarged cross-sectional view of a main part for explaining a method of welding a battery container and a battery lid according to an embodiment of the present invention. 1...Battery container, 5...Battery cover, 8...Welding, 1
1...Outer flange portion, 12...Laser beam, 1
3...Opening edge. Figure 1 Figure 3 Figure 2 Figure 4
Claims (1)
開口部を電池蓋で閉塞して前記外フランジ部を電池容器
の開口端縁に載置せしめ、外７ランク部と開口端縁とを
浴接する密閉形電池の製造方法において、前記溶接の際
に外フランジ部の外周縁が電池容器開口端縁の内周縁と
外周縁との間のほぼ中央に位置するように、電池蓋の外
フランジ部と電池容器の開口端縁との寸法が規制されて
いることを特徴とする密閉形電池の製造方法。A metal battery lid is provided with an outer 7 rank portion, the opening of the metal battery container is closed with the battery lid, the outer flange portion is placed on the opening edge of the battery container, and the outer 7 rank portion and the opening edge are closed. In the method for manufacturing a sealed battery in which the battery is in bath contact with A method for manufacturing a sealed battery, characterized in that the dimensions of the outer flange and the opening edge of the battery container are regulated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57040244A JPS58158857A (en) | 1982-03-16 | 1982-03-16 | Manufacturing method for sealed type battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57040244A JPS58158857A (en) | 1982-03-16 | 1982-03-16 | Manufacturing method for sealed type battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58158857A true JPS58158857A (en) | 1983-09-21 |
Family
ID=12575293
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57040244A Pending JPS58158857A (en) | 1982-03-16 | 1982-03-16 | Manufacturing method for sealed type battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58158857A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5286339A (en) * | 1991-01-12 | 1994-02-15 | Deutsche Automobilgesellschaft Mbh | Process and apparatus for the hermetic adhesive bonding of plastic casing parts of a battery or of a galvanic cell |
| EP1062704A1 (en) * | 1998-03-11 | 2000-12-27 | Duracell Inc. | Prismatic battery housing |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58145058A (en) * | 1982-02-24 | 1983-08-29 | Hitachi Ltd | Vessel construction of cell |
-
1982
- 1982-03-16 JP JP57040244A patent/JPS58158857A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58145058A (en) * | 1982-02-24 | 1983-08-29 | Hitachi Ltd | Vessel construction of cell |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5286339A (en) * | 1991-01-12 | 1994-02-15 | Deutsche Automobilgesellschaft Mbh | Process and apparatus for the hermetic adhesive bonding of plastic casing parts of a battery or of a galvanic cell |
| EP1062704A1 (en) * | 1998-03-11 | 2000-12-27 | Duracell Inc. | Prismatic battery housing |
| EP1062704A4 (en) * | 1998-03-11 | 2004-08-04 | Duracell Inc | Prismatic battery housing |
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