JPS5830066A - Button type battery - Google Patents
Button type batteryInfo
- Publication number
- JPS5830066A JPS5830066A JP56128523A JP12852381A JPS5830066A JP S5830066 A JPS5830066 A JP S5830066A JP 56128523 A JP56128523 A JP 56128523A JP 12852381 A JP12852381 A JP 12852381A JP S5830066 A JPS5830066 A JP S5830066A
- Authority
- JP
- Japan
- Prior art keywords
- sealing
- sealing ring
- sealing plate
- ring
- battery
- 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
- 238000007789 sealing Methods 0.000 claims abstract description 82
- 239000000945 filler Substances 0.000 claims abstract description 14
- 230000000630 rising effect Effects 0.000 claims description 3
- 230000004308 accommodation Effects 0.000 claims 1
- NDVLTYZPCACLMA-UHFFFAOYSA-N silver oxide Chemical compound [O-2].[Ag+].[Ag+] NDVLTYZPCACLMA-UHFFFAOYSA-N 0.000 abstract description 8
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 abstract description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 4
- 239000003792 electrolyte Substances 0.000 abstract description 4
- UKWHYYKOEPRTIC-UHFFFAOYSA-N mercury(ii) oxide Chemical compound [Hg]=O UKWHYYKOEPRTIC-UHFFFAOYSA-N 0.000 abstract description 4
- 229910001923 silver oxide Inorganic materials 0.000 abstract description 4
- 239000004743 Polypropylene Substances 0.000 abstract description 2
- 229910052742 iron Inorganic materials 0.000 abstract description 2
- 229910052759 nickel Inorganic materials 0.000 abstract description 2
- -1 polypropylene Polymers 0.000 abstract description 2
- 229920001155 polypropylene Polymers 0.000 abstract description 2
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 abstract 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 abstract 1
- 229940101209 mercuric oxide Drugs 0.000 abstract 1
- 238000000034 method Methods 0.000 description 5
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 239000006182 cathode active material Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 229910000474 mercury oxide Inorganic materials 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000007773 negative electrode material Substances 0.000 description 2
- 239000007774 positive electrode material Substances 0.000 description 2
- 229920002367 Polyisobutene Polymers 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000000565 sealant 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
-
- 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
- H01M50/171—Lids or covers characterised by the methods of assembling casings with lids using adhesives or sealing agents
-
- 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、ボタン型電池における封口部の改良に関し、
一方の端子、例えば負極端子を兼ねた封目板と、他方の
、例えば正極端子を兼ねた電池ケースとの間に断面り字
形の絶縁封口リングを配して封口した電池において、断
面り字形の封口リングがその立上り壁部で上下に２分割
されているとともに、前記封口板と電池ケースとの間の
リング収容空間を充填剤で充填して封口部からの電解液
の漏出を防止することを目的としたものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement of a sealing part in a button type battery.
In a battery sealed by placing an insulating sealing ring with a diagonal cross section between one terminal, such as a sealing plate that also serves as a negative terminal, and the other terminal, such as a battery case that also serves as a positive terminal, The sealing ring is divided into upper and lower halves by its rising wall, and the ring housing space between the sealing plate and the battery case is filled with a filler to prevent electrolyte from leaking from the sealing part. This is the purpose.
従来、ボタン型電池を構成する場合を第４図で説明する
と、正極活物質１を充填した正極ケース２と、封口リン
グ３を周縁に嵌合した封口板４内に、負極活物質５と電
解液を充填注入した後、セパレータ６を介して正極ケー
ス２と封口板４を嵌合し、正極ケース２の開口部を封口
板４側に絶縁封口リング３を介して挾圧し、ボタン型電
池を製造していた。A conventional button-type battery is constructed using FIG. 4. A positive electrode case 2 filled with a positive electrode active material 1, a sealing plate 4 with a sealing ring 3 fitted around the periphery, and a negative electrode active material 5 and an electrolytic After filling and injecting the liquid, the positive electrode case 2 and the sealing plate 4 are fitted together via the separator 6, and the opening of the positive electrode case 2 is pressed against the sealing plate 4 side via the insulating sealing ring 3, and the button type battery is inserted. was manufacturing.
しかしこの方法ｔコ、封口リング３と封口板４、封口リ
ング３と正極ケース２との各部品間に、組み立てていく
都合上、わずかの間隙７をつくっておかなければならな
い。各部品間にわずかの間隙が存在しない場合は、ボタ
ン電池の製造上、無理が発生し、置屋化することはでき
ない。However, in this method, a small gap 7 must be created between the sealing ring 3 and the sealing plate 4, and between the sealing ring 3 and the positive electrode case 2 for ease of assembly. If there is not a small gap between each part, it will be difficult to manufacture the button battery, and it will not be possible to store it in a storage room.
この間隙７を残し゛たまま、電池を密封すると、各部品
間の間隙を通って電解液が外部に漏れ出し、漏液となる
。If the battery is sealed with this gap 7 left in place, the electrolyte will leak outside through the gaps between the parts, resulting in liquid leakage.
しかし過去、様々な工夫が検討され、その一つとして、
各部品間に、ゴム等の密封剤を塗布して組立て封口する
方法がある。この方法は、耐漏液性能に対して、ある程
度の効果を発揮するが、電池封日時、正極ケース２に２
〜３ トン肩の圧力を加え、正極ケース９開口部８を内
方へ折り曲げるため封口リング３≠−み、その形状を当
初の肉厚の状態のまま保つことが不可能になる。封口リ
ング３は正極ケース１の開口折り曲げ部と封口板４、封
口板４と正極側の金属支持リング９との間で著しく縮小
変形し、その影響で、封口リング３１ｄ、電池封口部の
外部へ押し出される。ここで用いた封口リング３Ｆｉ断
面り字形にｌ一体化されているため、封口リング３の上
下を縮小変形すると、その中間部が薄く、そして両端が
膨張するという現象が発生する。。そのため封口リング
３は当初の肉厚よりも薄くなり、各部品間に新座な間隙
７′が発生する。However, in the past, various ideas were considered, and one of them was
There is a method of assembling and sealing by applying a sealant such as rubber between each part. This method has some effect on the leakage resistance performance, but the battery sealing date and time and the positive electrode case 2
Since the opening 8 of the positive electrode case 9 is bent inward by applying a pressure of ~3 tons, the sealing ring 3 bends, making it impossible to maintain its shape with its original thickness. The sealing ring 3 is significantly reduced and deformed between the opening bent part of the positive electrode case 1 and the sealing plate 4, and between the sealing plate 4 and the metal support ring 9 on the positive electrode side, and as a result, the sealing ring 31d and the outside of the battery sealing part are being pushed out. Since the sealing ring 3Fi used here is integrated with an L-shaped cross section, when the upper and lower parts of the sealing ring 3 are reduced and deformed, a phenomenon occurs in which the middle part becomes thin and both ends expand. . Therefore, the sealing ring 3 becomes thinner than its original thickness, and a new gap 7' is generated between each part.
この間隙部７′ヲ解消させるために、本発明者らは、絶
縁封口リング３をその立上シ壁部で上下に二分割して、
リング収容空間に充填剤を充填して電池を組与立てる方
法を見出した。以下にその実施例を記述する。In order to eliminate this gap 7', the present inventors divided the insulating sealing ring 3 into upper and lower halves at its rising wall.
We have discovered a method for assembling a battery by filling the ring housing space with a filler. An example will be described below.
本発明のボタン型電池を第１図で説明すると、鉄ニニッ
ケルメッキされている正極ケース２の内底部に、酸化銀
、又は酸化水銀等の正極活物質１をその上部周縁に断面
り字形のニッケルリング９を介し抑圧成型する。To explain the button type battery of the present invention with reference to FIG. 1, a cathode active material 1 such as silver oxide or mercury oxide is placed on the inner bottom of a cathode case 2 plated with iron and nickel, and a cathode active material 1 such as silver oxide or mercury oxide is formed on the upper periphery of the cathode case 2. Pressure molding is performed via a nickel ring 9.
また封口板４は、封口リング３の一部である〜封口リン
グ下部３ａと液密に当接させて負極端子とし、負極−活
物質６である亜鉛粉末と電解液である水酸化力リ−ラム
の水溶液を充填注入する。そして、多孔質のポリプロピ
レンのセパレータ６を介し、この両者全嵌合する。この
時、封口リング下部３ａと封口板４、及び正極ケース２
の間に、間隙７が存在する。Further, the sealing plate 4 is in liquid-tight contact with the sealing ring lower part 3a, which is a part of the sealing ring 3, and is used as a negative electrode terminal. Fill and inject the aqueous solution of rum. Then, the two are fully fitted through a porous polypropylene separator 6. At this time, the sealing ring lower part 3a, the sealing plate 4, and the positive electrode case 2
A gap 7 exists between them.
この間隙７を密封充填剤１ｏで完全に埋めてしまうため
、本発明者らはポリイソブチレンをトルエンで希釈して
、５ｏｏｏ〜８０００ｃｐｓの粘度に調整したものを使
用した。In order to completely fill this gap 7 with the sealing filler 1o, the present inventors used polyisobutylene diluted with toluene and adjusted to a viscosity of 500 to 8000 cps.
密封充填剤１０は、正極ケース２と封口板４との間に注
入するだけで、部品の間隙部７は完全に埋められる。By simply injecting the sealing filler 10 between the positive electrode case 2 and the sealing plate 4, the gap 7 between the components is completely filled.
次に第２図に示す工程であるが、封口リング上部３ｂは
、すでに密封充填剤１０の充填されている正極ケース２
と封口板４との間に挿入する。封口リング上部３ｂはす
でに封口リング下部３ａに密封充填剤１ｏが付着してい
るため、この封口リング上Ｔａｂ、ｓａは密着固定さ−
る。Next, in the process shown in FIG.
and the sealing plate 4. Since the sealing filler 1o has already adhered to the sealing ring upper part 3b and the sealing ring lower part 3a, Tab and sa on this sealing ring are tightly fixed.
Ru.
最後に第３図の工程で、正極ケース２の開口部８を内方
へ折曲し、ボタン型電池を封口する。Finally, in the step shown in FIG. 3, the opening 8 of the positive electrode case 2 is bent inward to seal the button battery.
正極ケース２の開口部８を内方へ折曲する時、封口板４
と正極合剤１との間の封口リング下部３ａは縮小変形す
るため、その縮小した封口リング下部３ａの体積分が左
右へ押し出される。When bending the opening 8 of the positive electrode case 2 inward, the sealing plate 4
Since the sealing ring lower part 3a between the positive electrode mixture 1 and the positive electrode mixture 1 is reduced and deformed, the volume of the reduced sealing ring lower part 3a is pushed out to the left and right.
また同様に、正極ケース２開口部８と封口板４の間の封
口リング上部３ｂも変形するため、その縮小体積分が、
封口部外部と封口部内部の両方へ押し出される。Similarly, since the sealing ring upper part 3b between the positive electrode case 2 opening 8 and the sealing plate 4 also deforms, its reduced volume is
It is pushed out both to the outside of the sealing part and to the inside of the sealing part.
以上の理由で、正極ケース２と封口板４とに挾まれた封
口リングａａ、ｓｂと密封充填剤１０とは、非常に密な
接触状態となりボタン型電池を完壁に密封する。For the above reasons, the sealing rings aa, sb sandwiched between the positive electrode case 2 and the sealing plate 4 and the sealing filler 10 come into very close contact, completely sealing the button battery.
このような本発明の封口構造を採用することにより、従
来よりも密封効果の高い、すなわち耐漏液性能のすぐれ
たボタン型電池の構成が可能となり、直径１１．６ｍｍ
、高さ５．３ｍｍ（７）ｌｌ化銀電池においては耐漏性
能試験で次表の如き結果を得ることができた。By adopting the sealing structure of the present invention, it is possible to construct a button-type battery with a higher sealing effect than conventional ones, that is, with excellent leakage resistance.
, 5.3 mm (7) ll silver oxide batteries had the following results in the leak resistance test.
なお、Ａは従来の封口リング３に密封充填剤が塗布され
てない電池。Note that A is a battery in which the conventional sealing ring 3 is not coated with a sealing filler.
Ｂは従来あ断面り字形封口リング３に密封充填剤を塗布
した電池。B is a battery in which a sealing filler is applied to the conventional beveled sealing ring 3.
Ｃは本発明による上下に２分割した封口リングと充填剤
を採用して封口した電池を示す。C shows a battery sealed using a sealing ring divided into upper and lower halves and a filler according to the present invention.
試験電池数はいずれも６０個とし、表中で明らかな如く
製造初度と保存後の両条件で試験した。この結果から電
池ＣはＡ、Ｈの電池に比べて保存後における耐漏液性に
優れていることが明らかである。The number of batteries tested was 60 in each case, and as shown in the table, the tests were conducted both at the time of manufacture and after storage. From this result, it is clear that battery C has better leakage resistance after storage than batteries A and H.
第１図は本発明の実施例における上下に２分割された絶
縁封口リングのうち封口リング下部と充填剤を封目板と
電池ケースとの間に配した断面図、第２図は封口リング
上部をリング収容空間に配した封目前の断面図、第３図
は電池ケースの開口部を内方へ折曲して封口を完了した
ボタン型電池の断面図、第４図は従来の封口リングを用
いて封口したボタン型電池の断面図である。
１°゛°°°°正極活物質、２・・・・・・電池ケース
、３．３ａ、３ｂ・・・・・・絶縁封口リング、４・・
・・・・封口板、５・・・・・・負極活物質、６・・・
・・・セパレータ、７ ７’ ・・・・・・間隙、１ｏ
・・・・・・充填剤。
代理人の氏名 弁理士 中 尾 敏 男 ほか１名蘂１
図
８３図Fig. 1 is a cross-sectional view of an insulating sealing ring divided into two vertically in an embodiment of the present invention, with the lower part of the sealing ring and the filler arranged between the sealing plate and the battery case, and Fig. 2 is the upper part of the sealing ring. Fig. 3 is a cross-sectional view of a button-type battery with the opening of the battery case sealed inward by bending it inward, and Fig. 4 shows a conventional sealing ring. FIG. 1°゛°°°° Positive electrode active material, 2...Battery case, 3.3a, 3b...Insulating sealing ring, 4...
... Sealing plate, 5 ... Negative electrode active material, 6 ...
...Separator, 7 7' ...Gap, 1o
······filler. Name of agent: Patent attorney Toshio Nakao and 1 other person
Figure 83
Claims (1)
グを配して封口したボタン型電池であって、前記断面り
字形のリングはその立上り壁部で上下に２分割されてい
るとともに、前記封目板と電池ケースとの間のリング収
容空間が充填剤で充填されていることを特徴とするボタ
ン型電池。A button-type battery sealed by disposing an insulating sealing ring with an insulating sealing ring in cross section between a sealing plate and a battery case, wherein the ring with an insulating sealing ring in cross section is divided into upper and lower halves by its rising wall. . A button type battery, characterized in that a ring accommodation space between the sealing plate and the battery case is filled with a filler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56128523A JPS5830066A (en) | 1981-08-17 | 1981-08-17 | Button type battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56128523A JPS5830066A (en) | 1981-08-17 | 1981-08-17 | Button type battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5830066A true JPS5830066A (en) | 1983-02-22 |
Family
ID=14986844
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56128523A Pending JPS5830066A (en) | 1981-08-17 | 1981-08-17 | Button type battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5830066A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005006481A2 (en) * | 2003-06-30 | 2005-01-20 | Rayovac Corporation | Electrochemical cell having improved radial seal |
-
1981
- 1981-08-17 JP JP56128523A patent/JPS5830066A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005006481A2 (en) * | 2003-06-30 | 2005-01-20 | Rayovac Corporation | Electrochemical cell having improved radial seal |
| WO2005006481A3 (en) * | 2003-06-30 | 2005-05-19 | Ray O Vac Corp | Electrochemical cell having improved radial seal |
| US7651814B2 (en) | 2003-06-30 | 2010-01-26 | Rovcal, Inc. | Electrochemical cell having improved radial seal |
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