JPS6240818B2 - - Google Patents
Info
- Publication number
- JPS6240818B2 JPS6240818B2 JP56016500A JP1650081A JPS6240818B2 JP S6240818 B2 JPS6240818 B2 JP S6240818B2 JP 56016500 A JP56016500 A JP 56016500A JP 1650081 A JP1650081 A JP 1650081A JP S6240818 B2 JPS6240818 B2 JP S6240818B2
- Authority
- JP
- Japan
- Prior art keywords
- diameter
- battery
- electrode body
- spiral electrode
- sealing
- 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.)
- Expired
Links
- 238000007789 sealing Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 7
- 238000012856 packing Methods 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims 1
- 230000002093 peripheral effect Effects 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229920001778 nylon Polymers 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
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/543—Terminals
- H01M50/552—Terminals characterised by their shape
- H01M50/559—Terminals adapted for cells having curved cross-section, e.g. round, elliptic or button cells
- H01M50/56—Cup shaped terminals
-
- 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
Description
【発明の詳細な説明】
本発明は円筒型電池の製造法に関するものであ
る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing a cylindrical battery.
例えば、第１図に示すような円筒型ニツケル−
カドミウム電池１は陰、陽極板２，３をセパレー
タ４を介して巻取つた渦巻電極体５を陰極端子兼
用の有底筒状外装缶６内に挿入し、電解液を注入
したる後陽極端子キヤツプ７を付設した封口蓋８
を絶縁パツキング９を介して外装缶６の開口部に
装着し、ついで外装缶の開口折曲縁６′により封
口して製造されている。 For example, cylindrical nickel as shown in Figure 1.
A cadmium battery 1 is constructed by inserting a spiral electrode body 5 in which negative and anode plates 2 and 3 are wound together via a separator 4 into a bottomed cylindrical outer can 6 which also serves as a cathode terminal, and after injecting an electrolyte into the anode terminal. Sealing lid 8 with cap 7 attached
is attached to the opening of the outer can 6 via the insulating packing 9, and then sealed by the bent edge 6' of the outer can.
而して、この製法においては渦巻電極体５を外
装缶６内に挿入する際、円滑に行いうるように渦
巻電極体５の外径を外装缶６の内径より若干小さ
くするように配慮されている。これは渦巻電極体
５の挿入時にその外周部が外装缶の内周面と接し
て極板崩れが生じることを防止するためである。 Therefore, in this manufacturing method, care has been taken to make the outer diameter of the spiral electrode body 5 slightly smaller than the inner diameter of the outer can 6 so that the spiral electrode body 5 can be inserted smoothly into the outer can 6. There is. This is to prevent the outer peripheral portion of the spiral electrode body 5 from coming into contact with the inner peripheral surface of the outer can when the spiral electrode body 5 is inserted, thereby preventing the electrode plate from collapsing.
ところが、この少間隙の存在のために、外装缶
内への挿入後の渦巻電極体はゆるみを生じ陰、陽
極板の緊縛度が低下して電池性能に悪影響が生じ
ることになる。又、上記せる不都合を解消するた
め及び組立工程の簡略化を計るために渦巻電極体
の外周部をテーピングして緊縛度を保持する方法
も考えられているが、この場合には少間隙が存在
していると渦巻電極体が外装缶内で揺動可能であ
るため、リード片のちぎれなどの新たな問題が生
じることになる。 However, due to the existence of this small gap, the spiral electrode body becomes loose after being inserted into the outer can, and the tightness of the negative and anode plates decreases, which adversely affects the battery performance. In addition, in order to eliminate the above-mentioned disadvantages and to simplify the assembly process, a method has been considered in which the outer periphery of the spiral electrode body is taped to maintain tightness, but in this case, there is a small gap. If this happens, the spiral electrode body can swing within the outer can, resulting in new problems such as breakage of the lead pieces.
本発明は上記せる問題に鑑みなされたものであ
り、以下その一実施例を図面に基づき説明する。 The present invention has been made in view of the above problems, and one embodiment thereof will be described below with reference to the drawings.
第２図において１は第１図に示す電池であつ
て、その外装缶の径はφＡである。Ａはその出口
部の径が外装缶の径より若干小さいφＢを有する
管状治具であり、前記電池１を押圧治具Ｂを用い
て前記管状治具Ａを通過させることにより外装缶
の径がφＢである本発明電池１０を得る。 In FIG. 2, numeral 1 is the battery shown in FIG. 1, and the diameter of the outer can is φA. A is a tubular jig whose exit part has a diameter φB that is slightly smaller than the diameter of the outer can, and by passing the battery 1 through the tubular jig A using a pressing jig B, the diameter of the outer can is reduced. A battery 10 of the present invention having a diameter of φB is obtained.
また前記実施例においては、縮径の度合、つま
りφＡとφＢとの差を0.2〜0.5mm程度としてい
る。尚、たとえば絶縁パツキングとしてナイロン
製のものを用いた場合、径方向において封口蓋端
縁と外装缶内面に保持される部分のパツキングの
厚みが25〜30％小さくなるように、縮径させるこ
とが好ましい。また、縮径によりパツキングの厚
みを50％以上小さくした場合には、封口蓋の浮き
上りなどの問題が生じる恐れがある。 Further, in the embodiment described above, the degree of diameter reduction, that is, the difference between φA and φB, is about 0.2 to 0.5 mm. For example, when using nylon as the insulating packing, it is possible to reduce the diameter so that the thickness of the packing is 25 to 30% smaller in the radial direction at the portion held on the edge of the sealing lid and the inner surface of the outer can. preferable. Furthermore, if the thickness of the packing is reduced by 50% or more by diameter reduction, problems such as lifting of the sealing lid may occur.
尚、管状治具として実施例では出口部のみ径小
にしたが、治具内を出口部が最径小となるような
テーパー状としても良い。 Incidentally, in the embodiment of the tubular jig, only the diameter of the outlet portion is made small, but the inside of the jig may be tapered so that the diameter of the outlet portion is the smallest.
上述した如く本発明法に依れば、外装缶と渦巻
電極体との間に少間隙が存在していても外装缶の
径より径小の管状治具中を通過させて外装缶の径
を縮小せしめるものであるため、外装缶と渦巻電
極体とは強固に密着した状態に維持されることに
なり、外装缶と渦巻電極体との少間隙を因とする
前述の問題点を解消することができる。 As described above, according to the method of the present invention, even if there is a small gap between the outer can and the spiral electrode body, the diameter of the outer can can be reduced by passing the outer can through a tubular jig whose diameter is smaller than the diameter of the outer can. Since the structure is made smaller, the outer can and the spiral electrode body are maintained in a tightly adhered state, which solves the above-mentioned problem caused by the small gap between the outer can and the spiral electrode body. Can be done.
更に、外装缶を管状治具中に通過させて縮径さ
せると、外装缶外周面に均一な力がかかり、ムラ
なく均一に径を縮小することができる。その結
果、封口蓋と外装缶との間に存在する絶縁パツキ
ングはその周囲全体にわたつて圧縮されると共
に、また外装缶の開口折曲縁が更に中心方向に押
圧されることになるため、封口精度が高められ、
耐漏液性の向上が計れる。尚、電池外装缶を径方
向から、縮径後の外装缶外径に一致するような内
部空間に電池を保持する、たとえば二つ割りの、
治具を用いて、プレスにより外装缶を縮径した場
合には、圧力を均一に付加するのが難しく好まし
くない。 Further, when the outer can is passed through a tubular jig to reduce its diameter, a uniform force is applied to the outer peripheral surface of the outer can, and the diameter can be reduced evenly and uniformly. As a result, the insulating packing that exists between the sealing lid and the outer can is compressed over its entire periphery, and the bent edge of the opening of the outer can is further pressed toward the center, so that the sealing Accuracy is increased,
Improved leakage resistance can be measured. It should be noted that, from the radial direction of the battery outer can, the battery is held in an internal space that matches the outer diameter of the outer can after diameter reduction.
When the diameter of the outer can is reduced by pressing using a jig, it is difficult to apply pressure uniformly, which is not preferable.
第１図は本発明の対象とする円筒型電池の縦断
面図、第２図は本発明法を説明するための図、第
３図は本発明法により得た円筒型電池の正面図を
夫々示す。
１０……本発明電池、５……渦巻電極体、６…
…外装缶、６′……開口折曲縁、８……封口蓋、
９……絶縁パツキング、Ａ……管状治具、Ｂ……
押圧治具。
FIG. 1 is a longitudinal cross-sectional view of a cylindrical battery that is the object of the present invention, FIG. 2 is a diagram for explaining the method of the present invention, and FIG. 3 is a front view of a cylindrical battery obtained by the method of the present invention. show. 10 ... Battery of the present invention, 5... Spiral electrode body, 6...
...Outer can, 6'... Opening folded edge, 8... Sealing lid,
9... Insulation packing, A... Tubular jig, B...
Pressing jig.
Claims (1)
した渦巻電極体を収納した電池外装缶の開口部
を、外装缶の開口折曲縁により絶縁パツキングを
介して封口蓋で封口した後、前記外装缶の外径よ
り小なる内径を有する管状治具中に通過させ、封
口部を含めて前記外装缶全体の径を縮小せしめる
ことを特徴とする円筒型電池の製造法。1. After sealing the opening of the battery exterior can housing the spiral electrode body formed by winding negative and anode plates through a separator with a sealing lid via insulating packing using the bent edge of the opening of the exterior can, A method for manufacturing a cylindrical battery, characterized by passing the battery through a tubular jig having an inner diameter smaller than the outer diameter of the can to reduce the diameter of the entire outer can including the sealing part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56016500A JPS57130368A (en) | 1981-02-05 | 1981-02-05 | Manufacture of cylindrical battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56016500A JPS57130368A (en) | 1981-02-05 | 1981-02-05 | Manufacture of cylindrical battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57130368A JPS57130368A (en) | 1982-08-12 |
| JPS6240818B2 true JPS6240818B2 (en) | 1987-08-31 |
Family
ID=11917992
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56016500A Granted JPS57130368A (en) | 1981-02-05 | 1981-02-05 | Manufacture of cylindrical battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57130368A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4835382U (en) * | 1971-08-31 | 1973-04-27 | ||
| JPS4835384U (en) * | 1971-08-31 | 1973-04-27 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56107667U (en) * | 1980-01-22 | 1981-08-21 |
-
1981
- 1981-02-05 JP JP56016500A patent/JPS57130368A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4835382U (en) * | 1971-08-31 | 1973-04-27 | ||
| JPS4835384U (en) * | 1971-08-31 | 1973-04-27 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57130368A (en) | 1982-08-12 |
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