JPH08315792A - Button type alkaline battery - Google Patents
Button type alkaline batteryInfo
- Publication number
- JPH08315792A JPH08315792A JP7123349A JP12334995A JPH08315792A JP H08315792 A JPH08315792 A JP H08315792A JP 7123349 A JP7123349 A JP 7123349A JP 12334995 A JP12334995 A JP 12334995A JP H08315792 A JPH08315792 A JP H08315792A
- Authority
- JP
- Japan
- Prior art keywords
- sealing
- alkaline battery
- type alkaline
- insulating gasket
- agent
- 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.)
- Granted
Links
Classifications
-
- 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
- Gasket Seals (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は封口部を改良したボタン
型アルカリ電池に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a button type alkaline battery having an improved sealing portion.
【０００２】[0002]
【従来の技術】従来のボタン型アルカリ電池の封口部は
次のように形成されていた。合成樹脂または合成ゴムか
らなる絶縁ガスケットを負極端子を兼ねた金属封口板に
嵌合し、次にこれを正極端子を兼ねた正極ケースに嵌合
し、そして正極ケースの開口部を内方向にかしめて封口
する。その際に、電池の漏液を防止するために、シール
剤としてポリアミド系樹脂、アスファルト、クロロスル
フォン化ポリエチレン、エポキシ樹脂、あるいはこれら
の混合物を絶縁ガスケットの全面に塗布するか、または
これらのシール剤を負極端子を兼ねた金属封口板に当接
する箇所にのみ注入するかしていた。2. Description of the Related Art The sealing portion of a conventional button type alkaline battery has been formed as follows. Fit an insulating gasket made of synthetic resin or synthetic rubber to the metal sealing plate that also serves as the negative electrode terminal, then fit it to the positive electrode case that also serves as the positive electrode terminal, and insert the opening of the positive electrode case inward. Close and seal. At that time, in order to prevent leakage of the battery, polyamide resin, asphalt, chlorosulfonated polyethylene, epoxy resin, or a mixture thereof is applied as a sealing agent to the entire surface of the insulating gasket, or these sealing agents are used. Was injected only into the portion that abuts on the metal sealing plate that also serves as the negative electrode terminal.
【０００３】[0003]
【発明が解決しようとする課題】上記従来の封口方法の
うち、シール剤を絶縁ガスケットの全面に塗布する方法
では、耐漏液特性は良好になるが、全面に塗布されたシ
ール剤によって絶縁ガスケット同士がくっつき合い、そ
のためこれをほぐす作業が後工程として必要となる。一
方、シール剤を負極端子を兼ねた金属封口板に当接する
箇所にのみ注入する方法では、上記のような作業上の問
題は発生しないが、耐漏液特性に劣っている。したがっ
て、作業性と耐漏液特性との両方を満足する封口方法が
望まれる。本発明は上記問題に対処してなされたもの
で、耐漏液特性に優れ、かつ作業性にも優れたボタン型
アルカリ電池を提供することを目的とする。Among the conventional sealing methods described above, the method of applying the sealant to the entire surface of the insulating gasket provides good leakage resistance, but the sealing agent applied to the entire surface allows the insulating gaskets to adhere to each other. They stick to each other, and therefore work to loosen them is required as a post process. On the other hand, in the method of injecting the sealing agent only into the portion in contact with the metal sealing plate which also serves as the negative electrode terminal, the above-mentioned problems in work do not occur, but the liquid leakage resistance is inferior. Therefore, a sealing method that satisfies both workability and leakage resistance is desired. The present invention has been made to address the above problems, and an object of the present invention is to provide a button-type alkaline battery having excellent liquid leakage resistance and workability.
【０００４】[0004]
【課題を解決するための手段】本発明のボタン型アルカ
リ電池は、絶縁ガスケットの全面にシール剤を塗布し、
さらにその表面に滑り剤を塗布することによって上記目
的を達成した。すなわち、本発明は、負極端子を兼ねた
金属封口板の端部と正極端子を兼ねた正極ケースの端部
との間に絶縁ガスケットが介在して封口部を形成してい
るボタン型アルカリ電池において、絶縁ガスケットの全
面にシール剤が塗布され、さらに該シール剤の表面に滑
り剤が塗布されていることを特徴とする。The button-type alkaline battery of the present invention has a sealing agent applied to the entire surface of an insulating gasket,
Further, the above object was achieved by applying a lubricant to the surface. That is, the present invention provides a button-type alkaline battery in which an insulating gasket is interposed between the end of the metal sealing plate also serving as the negative electrode terminal and the end of the positive electrode case also serving as the positive electrode terminal to form the sealing portion. A sealant is applied to the entire surface of the insulating gasket, and a lubricant is applied to the surface of the sealant.
【０００５】上記において、絶縁ガスケットとしては合
成樹脂、合成ゴム等、通常絶縁ガスケットとして使用さ
れるものならばいずれでもよい。また、シール剤として
は、ポリアミド系樹脂、アスファルト、クロロスルフォ
ン化ポリエチレン、エポキシ樹脂、あるいはこれらの混
合物等、シール機能を有するものならば使用することが
できる。滑り剤としては、カーボンブラック、グラファ
イト、シリカ、タルク、マイカ、またはそれらの混合物
等が好ましい。In the above, the insulating gasket may be synthetic resin, synthetic rubber or the like as long as it is usually used as an insulating gasket. As the sealing agent, any one having a sealing function such as polyamide resin, asphalt, chlorosulfonated polyethylene, epoxy resin, or a mixture thereof can be used. The slip agent is preferably carbon black, graphite, silica, talc, mica, or a mixture thereof.
【０００６】[0006]
【作用】本発明のボタン型アルカリ電池は、絶縁ガスケ
ットの全面にシール剤が塗布されているので、耐漏液特
性が良好であり、しかもその上に塗布された滑り剤によ
って絶縁ガスケット同士の接着を防止できるので、封口
時の作業性も良好である。したがって、耐漏液特性と作
業性の両方を向上させることができる。In the button type alkaline battery of the present invention, the sealing agent is applied to the entire surface of the insulating gasket, so that the liquid leakage resistance is good, and the sliding agent applied on the button prevents the insulating gaskets from adhering to each other. Since it can be prevented, workability at the time of sealing is also good. Therefore, it is possible to improve both the liquid leakage resistance property and the workability.
【０００７】[0007]
【実施例】本発明の実施例を図面を参照して説明する。
図１は本発明のボタン型アルカリ電池（酸化銀電池ＳＲ
６２１ＳＷ型、直径６．８ｍｍ、高さ２．１５ｍｍ）の
一実施例を示す断面図である。また、図２はこのボタン
型アルカリ電池で使用した絶縁ガスケットの拡大図であ
る。図１および図２において、１は負極端子を兼ねた封
口板、２はナイロン樹脂よりなるガスケット、３ａはシ
ール剤、３ｂは滑り剤、４は正極ケース、５は正極合
剤、６はセパレータ、７は液保持材、８は負極作用物質
である。An embodiment of the present invention will be described with reference to the drawings.
FIG. 1 shows a button type alkaline battery (silver oxide battery SR of the present invention.
621SW type, diameter 6.8mm, height 2.15mm) is a cross-sectional view showing an example. FIG. 2 is an enlarged view of the insulating gasket used in this button type alkaline battery. 1 and 2, 1 is a sealing plate that also serves as a negative electrode terminal, 2 is a gasket made of nylon resin, 3a is a sealing agent, 3b is a slip agent, 4 is a positive electrode case, 5 is a positive electrode mixture, 6 is a separator, 7 is a liquid holding material, and 8 is a negative electrode acting substance.
【０００８】図２に示されるように、本発明のボタン型
アルカリ電池の絶縁ガスケットは、その全面にシール剤
３ａが塗布され、さらにその上に滑り剤３ｂが塗布され
ている。本実施例ではシール剤３ａとして以下の配合物
を使用し、これをスプレー式の流動層塗布機を用いて絶
縁ガスケット全面に塗布した。 シール剤： 脂肪酸ポリアミド樹脂…２０ｗｔ％、 イ
ソプロピルアルコール…４０ｗｔ％、 トルエン…４０
ｗｔ％。As shown in FIG. 2, the insulating gasket of the button type alkaline battery of the present invention has a sealant 3a applied to the entire surface thereof, and a lubricant 3b applied thereon. In this example, the following composition was used as the sealing agent 3a, and this was applied to the entire surface of the insulating gasket by using a spray type fluidized bed coating machine. Sealant: Fatty acid polyamide resin: 20 wt%, isopropyl alcohol: 40 wt%, toluene: 40
wt%.
【０００９】上記シール剤を塗布した後、以下の配合の
滑り剤３ｂを塗布した。 滑り剤： タルク…５ｗｔ％、 イソプロピルアルコー
ル…４５ｗｔ％、 エチルアルコール…５０ｗｔ％。After applying the above-mentioned sealing agent, a lubricant 3b having the following composition was applied. Lubricants: Talc ... 5 wt%, Isopropyl alcohol ... 45 wt%, Ethyl alcohol ... 50 wt%.
【００１０】滑り剤を塗布する場合には、タルクがスプ
レー容器に沈降しやすいので、攪拌しながら塗布する。
塗布量はシール剤中の脂肪酸ポリアミド樹脂の固形分に
対してタルクが０．５ｗｔ％になるように調製した。When the lubricant is applied, talc tends to settle in the spray container, so the talc is applied with stirring.
The coating amount was adjusted so that talc was 0.5 wt% with respect to the solid content of the fatty acid polyamide resin in the sealant.
【００１１】次に、本発明との比較のために、比較例１
として上記シール剤を絶縁ガスケットの全面に塗布して
滑り剤を塗布しないもの、比較例２として上記シール剤
を注射器により絶縁ガスケットの金属封口板１に当接す
る箇所に注入したもの、をそれぞれ使用し、本発明の実
施例電池と同じ型の電池を作成した。Next, for comparison with the present invention, Comparative Example 1
As the comparative example 2, a sealant is applied to the entire surface of the insulating gasket without applying a slipping agent, and as the comparative example 2, the sealant is injected by a syringe into a portion of the insulating gasket that abuts on the metal sealing plate 1. A battery of the same type as the example battery of the present invention was prepared.
【００１２】本発明の実施例電池と比較例１および２の
電池のそれぞれ５０個を、温度４５℃、湿度９３％の環
境下に、４０日、８０日、１２０日貯蔵した後、２０倍
の顕微鏡でそれらの漏液発生数を調べた。結果を表１に
示す。Fifty pieces of each of the battery of Example of the present invention and the batteries of Comparative Examples 1 and 2 were stored in an environment of a temperature of 45 ° C. and a humidity of 93% for 40 days, 80 days, 120 days, and then stored 20 times. The numbers of those leaks were examined with a microscope. The results are shown in Table 1.
【００１３】[0013]
【表１】 [Table 1]
【００１４】また、作業性については、実施例および比
較例２の絶縁ガスケットはパッキング同士のくっつきが
なく、ほぐし工程が必要なかったが、比較例１の場合は
くっつきが発生してほぐし作業をしなければならなかっ
た。Regarding workability, the insulating gaskets of Example and Comparative Example 2 had no sticking between packings and did not require a loosening step, but in Comparative Example 1, sticking occurred and the loosening work was performed. I had to.
【００１５】なお、上記実施例ではシール剤として脂肪
酸ポリアミド樹脂を使用したが、本発明はこれに限定さ
れるものではなく、他にアスファルト、クロロスルホン
化ポリエチレン、エポキシ樹脂、またはこれらの混合物
等を使用しても同様の効果が得られる。また、滑り剤と
しても、上記のタルク以外にシリカ、マイカ、カーボン
ブラック、グラファイト等も同様に使用できる。Although the fatty acid polyamide resin was used as the sealant in the above-mentioned examples, the present invention is not limited to this, and other materials such as asphalt, chlorosulfonated polyethylene, epoxy resin, or a mixture thereof may be used. The same effect can be obtained when used. Further, as the slip agent, silica, mica, carbon black, graphite and the like can be similarly used in addition to the above talc.
【００１６】[0016]
【発明の効果】以上説明したように、本発明のボタン型
アルカリ電池は、封口部分を改良したことにより、耐漏
液特性が優れ、かつ封口の際の作業性もよいという効果
を有する。As described above, the button-type alkaline battery of the present invention has the advantages that the sealing portion is improved and thus the liquid leakage resistance is excellent and the workability at the time of sealing is good.
【図１】本発明の一実施例のボタン型アルカリ電池の断
面図。FIG. 1 is a cross-sectional view of a button type alkaline battery according to an embodiment of the present invention.
【図２】本発明のボタン型アルカリ電池に用いられる絶
縁ガスケットの一実施例の断面図。FIG. 2 is a sectional view of an example of an insulating gasket used in the button type alkaline battery of the present invention.
１…負極端子を兼ねた封口板、２…ガスケット、３ａ…
シール剤、３ｂ…滑り剤、４…正極ケース、５…正極合
剤、６…セパレータ、７…液保持材、８…負極作用物
質。1 ... Sealing plate also serving as a negative electrode terminal, 2 ... Gasket, 3a ...
Sealing agent, 3b ... Sliding agent, 4 ... Positive electrode case, 5 ... Positive electrode mixture, 6 ... Separator, 7 ... Liquid holding material, 8 ... Negative acting substance.
Claims (2)
極端子を兼ねた正極ケースの端部との間に絶縁ガスケッ
トが介在して封口部を形成しているボタン型アルカリ電
池において、絶縁ガスケットの全面にシール剤が塗布さ
れ、さらに該シール剤の表面に滑り剤が塗布されている
ことを特徴とするボタン型アルカリ電池。1. A button type alkaline battery in which an insulating gasket is interposed between an end of a metal sealing plate also serving as a negative electrode terminal and an end of a positive electrode case also serving as a positive electrode terminal to form a sealing portion, A button-type alkaline battery, wherein a sealing agent is applied to the entire surface of the insulating gasket, and a slip agent is further applied to the surface of the sealing agent.
イト、シリカ、タルク、マイカ、またはそれらの混合物
である請求項１記載のボタン型アルカリ電池。2. The button type alkaline battery according to claim 1, wherein the slip agent is carbon black, graphite, silica, talc, mica, or a mixture thereof.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12334995A JP3717968B2 (en) | 1995-05-23 | 1995-05-23 | Button-type alkaline battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12334995A JP3717968B2 (en) | 1995-05-23 | 1995-05-23 | Button-type alkaline battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08315792A true JPH08315792A (en) | 1996-11-29 |
| JP3717968B2 JP3717968B2 (en) | 2005-11-16 |
Family
ID=14858374
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12334995A Expired - Fee Related JP3717968B2 (en) | 1995-05-23 | 1995-05-23 | Button-type alkaline battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3717968B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006058467A1 (en) * | 2004-12-02 | 2006-06-08 | Chung Pak Battery Works Ltd. | A Button-Shaped Alkaline Battery |
| JP2006351305A (en) * | 2005-06-15 | 2006-12-28 | Fdk Energy Co Ltd | Alkaline battery |
-
1995
- 1995-05-23 JP JP12334995A patent/JP3717968B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006058467A1 (en) * | 2004-12-02 | 2006-06-08 | Chung Pak Battery Works Ltd. | A Button-Shaped Alkaline Battery |
| JP2006351305A (en) * | 2005-06-15 | 2006-12-28 | Fdk Energy Co Ltd | Alkaline battery |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3717968B2 (en) | 2005-11-16 |
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