JPH10154492A - Sealed battery and its manufacture - Google Patents
Sealed battery and its manufactureInfo
- Publication number
- JPH10154492A JPH10154492A JP8314750A JP31475096A JPH10154492A JP H10154492 A JPH10154492 A JP H10154492A JP 8314750 A JP8314750 A JP 8314750A JP 31475096 A JP31475096 A JP 31475096A JP H10154492 A JPH10154492 A JP H10154492A
- Authority
- JP
- Japan
- Prior art keywords
- battery
- adhesive
- sealed
- ultraviolet rays
- polyphenylene ether
- 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
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
- Sealing Battery Cases Or Jackets (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は密閉式電池及びその
製造法に関するものである。The present invention relates to a sealed battery and a method for manufacturing the same.
【０００２】[0002]
【従来の技術】密閉式電池、中でも密閉式鉛蓄電池の電
槽材料にはＡＢＳ樹脂が多く使用されてきた。ＡＢＳ樹
脂を電槽や蓋に使用した場合、電槽と蓋との嵌合部、端
子封口部等の密閉箇所はエポキシ樹脂系接着剤で封止
し、電池の密閉を実現してきた。ＡＢＳ樹脂電槽のエポ
キシ系接着剤による封止は強固なものであり、電池の密
閉性は信頼性の高いものであった。しかしながらＡＢＳ
樹脂は透湿が大きいため、長期間使用される電池では電
槽からの透湿による電解液の減少による電池性能の低下
が大きな問題となっていた。そこで、透湿が小さく、耐
薬品性、耐衝撃性にも優れた電槽材料として特開平６−
２０３８１４号公報ではポリフェニレンエーテル系樹脂
を提案している。2. Description of the Related Art ABS resin has been widely used as a battery case material for sealed batteries, especially for sealed lead-acid batteries. When ABS resin is used for a battery case or a lid, a sealed portion such as a fitting portion between the battery case and the lid or a terminal sealing portion is sealed with an epoxy resin-based adhesive to realize a sealed battery. The sealing of the ABS resin container with the epoxy adhesive was strong, and the sealing performance of the battery was highly reliable. However, ABS
Since the resin has a high moisture permeability, in a battery used for a long period of time, a decrease in the battery performance due to a decrease in the electrolyte due to the moisture permeation from the battery case has been a serious problem. Therefore, as a battery case material having low moisture permeability and excellent in chemical resistance and impact resistance, Japanese Unexamined Patent Publication No.
JP 203814 proposes a polyphenylene ether-based resin.
【０００３】[0003]
【発明が解決しようとする課題】しかし上記ポリフェニ
レンエーテル系樹脂は、電槽材料として優れた特性を持
ちながら接着性が悪く、ＡＢＳ樹脂を使用した場合のよ
うに強固な封止部を得られないという問題点があった。
電槽と蓋との嵌合部、端子封口部等の密閉箇所に強固な
封止部が得られないと、当然ながら電池内圧が上昇した
場合や電池が衝撃を受けた場合に封止部に亀裂、剥離に
よる隙間が生じる。このような隙間が生じると電池の気
密が保てなくなり、電池内部の電解液が電池外へ漏洩し
てしまい、電池性能が保てなくなるだけでなく電池周囲
の機器が電解液によって破壊されるおそれがある。本発
明が解決しようとする課題は、ポリフェニレンエーテル
系樹脂を電槽材料として用いた場合でも強固な封止部が
得られる密閉式電池を提供することである。However, the above-mentioned polyphenylene ether-based resin has excellent properties as a battery case material but has poor adhesiveness, so that a strong sealing portion cannot be obtained as in the case of using ABS resin. There was a problem.
If a strong sealing part is not obtained in the sealed part such as the fitting part of the battery case and the lid, the terminal sealing part, etc., the sealing part will naturally be formed when the internal pressure of the battery rises or the battery receives an impact. A gap is formed due to cracking and peeling. If such a gap occurs, the airtightness of the battery cannot be maintained, the electrolyte inside the battery leaks out of the battery, and not only the battery performance cannot be maintained but also the devices around the battery may be damaged by the electrolyte. There is. The problem to be solved by the present invention is to provide a sealed battery in which a strong sealed portion can be obtained even when a polyphenylene ether-based resin is used as a battery case material.
【０００４】[0004]
【課題を解決するための手段】上記課題を解決するため
に本発明のポリフェニレンエーテル系樹脂を電槽材料と
する密閉式電池は、予め紫外線照射した密閉箇所が接着
剤で封止されていることを特徴とする。上記密閉箇所と
は、例えば電槽と蓋との嵌合部、端子封口部等である。
また上記ポリフェニレンエーテル系樹脂の具体例は、ポ
リフェニレンエーテル樹脂とポリスチレン樹脂を主体と
したポリマーアロイ合成樹脂等である。また、上記電槽
材料には電槽のほか蓋が含まれていてもよい。端子封口
部とは、正極外部端子と負極外部端子を電池内から蓋上
に引き出す部分である。ポリフェニレンエーテル系樹脂
は、他の合成樹脂とのアロイ樹脂、また、難燃剤、ガラ
スフレーク等の添加剤が添加されたものも含むものとす
る。In order to solve the above-mentioned problems, a sealed battery using a polyphenylene ether-based resin of the present invention as a battery case material has a sealed portion previously irradiated with ultraviolet rays sealed with an adhesive. It is characterized by. The hermetically sealed portion is, for example, a fitting portion between a battery case and a lid, a terminal sealing portion, and the like.
Specific examples of the polyphenylene ether-based resin include a polymer alloy synthetic resin mainly composed of a polyphenylene ether resin and a polystyrene resin. The battery case material may include a lid in addition to the battery case. The terminal sealing portion is a portion where the positive external terminal and the negative external terminal are pulled out from the inside of the battery onto the lid. The polyphenylene ether-based resin includes an alloy resin with another synthetic resin, and a resin to which additives such as a flame retardant and glass flake are added.
【０００５】ポリフェニレンエーテル系樹脂に紫外線を
照射することで樹脂表面が改質され、接着性が向上す
る。そのため電池の密閉箇所に接着剤による強固な封止
部を形成でき、電池内圧が上昇した場合や電池が衝撃を
受けた場合に封止部に隙間を生じることなく電池の気密
を保つことができる。[0005] By irradiating the polyphenylene ether-based resin with ultraviolet rays, the resin surface is modified and the adhesiveness is improved. Therefore, a strong sealing portion made of an adhesive can be formed in the sealed portion of the battery, and when the battery internal pressure increases or the battery is subjected to an impact, the battery can be kept airtight without forming a gap in the sealing portion. .
【０００６】[0006]
【発明の実施の形態】本発明の実施の形態の一例を以下
に詳述する。密閉式鉛蓄電池用電槽及び蓋として、ポリ
フェニレンエーテル樹脂とポリスチレン樹脂を主体とし
難燃性剤を添加したポリマーアロイ合成樹脂（ＵＬ規格
の難燃性Ｖ−０グレード）を成形したものを用意する。
この電槽と蓋との嵌合部、端子封口部に紫外線を照射す
る。このとき電槽や蓋のその他の部分にも紫外線が照射
されても構わない。紫外線の照射には、１１０Ｗの紫外
線照射用の低圧水銀ランプを用いた。ランプ照射強度は
１０ｍＷ／ｃｍ2、ランプと被照射物（電槽と蓋との嵌
合部、端子封口部）距離を２０ｍｍ、照射時間を６０秒
とする。この電槽及び蓋を使用して１２Ｖ−７Ａｈの密
閉式鉛蓄電池を作製する。接着剤としてはエポキシ系の
接着剤を用いる。エポキシ系の接着剤を電槽と蓋の嵌合
部、及び端子封口部に塗布ないし充填し、前記接着剤を
硬化させる。DESCRIPTION OF THE PREFERRED EMBODIMENTS One example of an embodiment of the present invention will be described in detail below. As the battery case and lid for a sealed lead-acid battery, a molded product of a polymer alloy synthetic resin (UL flame-retardant V-0 grade based on polyphenylene ether resin and polystyrene resin and a flame retardant added) is prepared. .
Ultraviolet rays are applied to the fitting portion between the battery case and the lid and the terminal sealing portion. At this time, ultraviolet rays may be applied to the battery case and other parts of the lid. A low-pressure mercury lamp for UV irradiation of 110 W was used for UV irradiation. The irradiation intensity of the lamp is 10 mW / cm 2 , the distance between the lamp and the object to be irradiated (the fitting portion between the battery case and the lid, the terminal sealing portion) is 20 mm, and the irradiation time is 60 seconds. Using this battery case and lid, a sealed lead-acid battery of 12V-7Ah is produced. An epoxy adhesive is used as the adhesive. An epoxy-based adhesive is applied or filled into the fitting part between the battery case and the lid and the terminal sealing part, and the adhesive is cured.
【０００７】紫外線を密閉箇所に照射するタイミングは
電槽及び蓋を成形した後、接着剤を使用する前であれば
任意に設定可能である。また紫外線照射条件について
は、ランプの出力、ランプと被照射物間距離など、任意
に設定可能である。本発明は、密閉式鉛蓄電池以外の密
閉式電池にも適用可能である。但し、陰極ガス吸収式二
次電池の場合、過充電時に電池内圧が高まり密閉部への
応力付与が大きいため、特に本発明は効果的である。[0007] The timing of irradiating the ultraviolet ray to the sealed portion can be set arbitrarily as long as the container and the lid are formed and before the adhesive is used. In addition, the UV irradiation conditions can be arbitrarily set, such as the output of the lamp and the distance between the lamp and the object to be irradiated. The present invention is also applicable to sealed batteries other than the sealed lead storage battery. However, in the case of a cathode gas absorption type secondary battery, the present invention is particularly effective because the internal pressure of the battery increases during overcharge and a large amount of stress is applied to the sealed portion.
【０００８】[0008]
（実験１）ポリフェニレンエーテル系樹脂の接着強度を
評価するに当たり、ポリフェニレンエーテル樹脂とポリ
スチレン樹脂を主体としたポリマーアロイ合成樹脂への
紫外線照射量とその表面の濡れ性の関係を調べた。濡れ
性の測定には、ＪＩＳ Ｋ６７６８準拠の濡れ指数標準
液（濡れ指示薬とも言う）を用い、これを電槽表面に滴
下してそのはじける状態を観察する手法を用いた。紫外
線の照射には、１１０Ｗの紫外線照射用の低圧水銀ラン
プを用いた。ランプ照射強度は１０ｍＷ／ｃｍ２、ラン
プと被照射物距離を２０ｍｍとした。照射時間を０〜９
０秒と変化させることにより紫外線照射量を調整した。
表１にその結果を示す。表中の○は、それぞれの濡れ指
数標準液をポリフェニレンエーテル系樹脂がはじかない
ことを示し、表中の×は、それぞれの濡れ指数標準液を
ポリフェニレンエーテル系樹脂がはじくことを示す。表
中のＮｏ．の大きい濡れ指数標準液をはじかないほど濡
れ性が良好なことを示す。濡れ性が良好であればあるほ
ど接着剤を使用した際の接着強度が高まる。(Experiment 1) In evaluating the adhesive strength of the polyphenylene ether-based resin, the relationship between the amount of ultraviolet radiation applied to a polymer alloy synthetic resin mainly composed of a polyphenylene ether resin and a polystyrene resin and the wettability of the surface were examined. For the measurement of the wettability, a method was used in which a wetting index standard solution (also referred to as a wetting indicator) according to JIS K6768 was used, which was dropped onto the surface of the battery case, and the state of repelling was observed. A low-pressure mercury lamp for UV irradiation of 110 W was used for UV irradiation. The lamp irradiation intensity was 10 mW / cm 2, and the distance between the lamp and the object to be irradiated was 20 mm. Irradiation time 0-9
The amount of ultraviolet irradiation was adjusted by changing the time to 0 second.
Table 1 shows the results. ○ in the table indicates that the polyphenylene ether-based resin does not repel each of the wetting index standard solutions, and X in the table indicates that the polyphenylene ether-based resin repels the respective wetting index standard solutions. No. in the table. It indicates that the wettability is good enough not to repel the standard solution having a large wettability index. The better the wettability, the higher the adhesive strength when the adhesive is used.
【０００９】[0009]
【表１】 [Table 1]
【００１０】表１から明らかなように、紫外線をポリフ
ェニレンエーテル系樹脂に照射することで、ポリフェニ
レンエーテル系樹脂表面の濡れ性が向上し、紫外線照射
量が多いほど濡れ性は良好になっていくこともわかる。
表１の濡れ性の測定結果と、ポリフェニレンエーテル系
樹脂部材同士をエポキシ系接着剤にて接着後、引っ張り
試験による接着強度を測定した結果とはほぼ比例関係に
あった。つまり図１に示すように紫外線を照射した場合
は照射しない場合に比べ接着強度が高まり、紫外線照射
量（紫外線照射時間）が多いほど接着強度が高まった。As is evident from Table 1, by irradiating the polyphenylene ether-based resin with ultraviolet rays, the wettability of the surface of the polyphenylene ether-based resin is improved, and the greater the amount of ultraviolet irradiation, the better the wettability. I understand.
The measurement result of the wettability in Table 1 and the result of measuring the adhesion strength by a tensile test after bonding the polyphenylene ether-based resin members with an epoxy-based adhesive were almost in a proportional relationship. That is, as shown in FIG. 1, the adhesive strength was higher when ultraviolet light was applied than when no ultraviolet light was applied, and the adhesive strength was higher as the amount of ultraviolet light irradiation (ultraviolet irradiation time) was larger.
【００１１】（実験２）発明の実施の形態に記載した製
法により作製した密閉式鉛蓄電池（実施例）と、紫外線
照射を全く行わない以外は実施例と同条件で作製した鉛
蓄電池（従来例）について比較検討した。実施例、従来
例の密閉式鉛蓄電池それぞれ５０個を周囲温度６０℃で
０．０２Ｃ（１４０ｍＡ）で１００日間充電する過充電
試験に供した。表２に漏液発生数を示す。(Experiment 2) A sealed lead-acid battery manufactured by the manufacturing method described in the embodiment of the invention (Example) and a lead-acid battery manufactured under the same conditions as in the example except that no ultraviolet irradiation was performed (conventional example) ) Were compared. An overcharge test was performed in which 50 sealed lead storage batteries of the examples and the conventional example were charged at 0.02 C (140 mA) for 100 days at an ambient temperature of 60 ° C. Table 2 shows the number of leaks.
【００１２】[0012]
【表２】 [Table 2]
【００１３】表２から、ポリフェニレンエーテル系樹脂
を電槽材料として用いた場合でも、密閉箇所に紫外線を
照射した後、接着剤により封止することにより、接着強
度が大きくなり、電池の気密を保つことができることが
明らかになった。As can be seen from Table 2, even when the polyphenylene ether-based resin is used as the battery case material, the sealing strength is increased by irradiating the sealed portion with ultraviolet rays and then sealing with an adhesive, thereby maintaining the airtightness of the battery. It became clear that we could do that.
【００１４】[0014]
【発明の効果】本発明により、ポリフェニレンエーテル
系樹脂を電槽材料として用いた場合でも電池の気密を保
つことができる密閉式電池を得ることができた。According to the present invention, a sealed battery which can maintain the airtightness of a battery even when a polyphenylene ether-based resin is used as a battery case material can be obtained.
【図１】ポリフェニレンエーテル系樹脂部材への紫外線
照射時間と接着強度の関係を示した図である。FIG. 1 is a view showing a relationship between an ultraviolet irradiation time and a bonding strength to a polyphenylene ether-based resin member.
Claims (2)
とする密閉式電池において、予め紫外線照射した密閉箇
所が接着剤で封止されていることを特徴とする密閉式電
池。1. A sealed battery using a polyphenylene ether-based resin as a battery case material, wherein a sealed portion irradiated with ultraviolet rays in advance is sealed with an adhesive.
とし、密閉箇所を接着剤で封止する密閉式電池の製造法
において、 密閉箇所に紫外線を照射した後、接着剤で封止すること
により密閉することを特徴とする密閉式電池の製造法。2. A method of manufacturing a sealed battery in which a polyphenylene ether resin is used as a battery case material and a sealed portion is sealed with an adhesive, wherein the sealed portion is irradiated with ultraviolet rays and then sealed with an adhesive. A method for producing a sealed battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8314750A JPH10154492A (en) | 1996-11-26 | 1996-11-26 | Sealed battery and its manufacture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8314750A JPH10154492A (en) | 1996-11-26 | 1996-11-26 | Sealed battery and its manufacture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH10154492A true JPH10154492A (en) | 1998-06-09 |
Family
ID=18057141
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8314750A Pending JPH10154492A (en) | 1996-11-26 | 1996-11-26 | Sealed battery and its manufacture |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH10154492A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6087479B1 (en) * | 2015-09-30 | 2017-03-01 | 三菱電機株式会社 | Stopper device and unit |
-
1996
- 1996-11-26 JP JP8314750A patent/JPH10154492A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6087479B1 (en) * | 2015-09-30 | 2017-03-01 | 三菱電機株式会社 | Stopper device and unit |
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