JPH05190201A - Sealed alkaline storage battery - Google Patents
Sealed alkaline storage batteryInfo
- Publication number
- JPH05190201A JPH05190201A JP4024525A JP2452592A JPH05190201A JP H05190201 A JPH05190201 A JP H05190201A JP 4024525 A JP4024525 A JP 4024525A JP 2452592 A JP2452592 A JP 2452592A JP H05190201 A JPH05190201 A JP H05190201A
- Authority
- JP
- Japan
- Prior art keywords
- battery
- valve
- coil spring
- valve body
- compression coil
- 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
-
- 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
- H01M50/30—Arrangements for facilitating escape of gases
- H01M50/317—Re-sealable arrangements
-
- 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
- H01M50/30—Arrangements for facilitating escape of gases
- H01M50/317—Re-sealable arrangements
- H01M50/325—Re-sealable arrangements comprising deformable valve members, e.g. elastic or flexible valve members
- H01M50/333—Spring-loaded vent valves
-
- 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
- H01M50/30—Arrangements for facilitating escape of gases
- H01M50/317—Re-sealable arrangements
- H01M50/325—Re-sealable arrangements comprising deformable valve members, e.g. elastic or flexible valve members
-
- 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Gas Exhaust Devices For Batteries (AREA)
- Secondary Cells (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、密閉形アルカリ蓄電池
に係わり、さらに詳しくはその防爆安全機構の改良に関
する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sealed alkaline storage battery, and more particularly to improvement of its explosion-proof safety mechanism.
【０００２】[0002]
【従来の技術】一般に、密閉形アルカリ蓄電池では、電
池反応に伴う発生ガスによって電池の内圧が異常に上昇
した場合、電池ケースの破裂や封口蓋の飛び出しなどに
よる電池破壊が生じる危険性があることから、ある程度
の内圧に達した際に発生ガスを電池外部へ逃がして上記
破壊を未然に防止する、いわゆる防爆安全機構が必要と
される。2. Description of the Related Art Generally, in a sealed alkaline storage battery, if the internal pressure of the battery rises abnormally due to the gas generated by the battery reaction, there is a risk that the battery may break due to rupture of the battery case or popping of the sealing lid. Therefore, there is a need for a so-called explosion-proof safety mechanism that allows the generated gas to escape to the outside of the battery when the internal pressure reaches a certain level to prevent the above destruction.
【０００３】そして、そのような防爆安全機構として、
一般に封口蓋の弁室に弁体とバネを収容し、該バネによ
って弁体を封口板に押圧し、上記弁体で封口板の中央部
に設けた弁孔を閉塞する構成が採用され、その弁体を押
圧するバネとしては、たとえば実開昭６２−２０４６０
号公報に示されるように、端部まで同径である圧縮コイ
ルバネ、あるいは円錐コイルバネが使用されている。As such an explosion-proof safety mechanism,
In general, a valve body and a spring are housed in a valve chamber of a sealing lid, the valve body is pressed against the sealing plate by the spring, and the valve hole provided in the central portion of the sealing plate is closed by the valve body. As a spring for pressing the valve element, for example, the actual open sho 62-20460
As shown in the publication, a compression coil spring or a conical coil spring having the same diameter up to the end is used.
【０００４】[0004]
【発明が解決しようとする課題】しかし、上記バネは、
それぞれ欠点を有していて、その目的を充分に達成する
ことができない。たとえば、前者の圧縮コイルバネは、
圧縮した時に中心からズレて、封口板と端子板との接合
部分にひっかかってしまい、充分に圧縮できなかった
り、圧縮状態から元の状態に復帰できないなどの欠点が
ある。However, the above spring is
Each has its own drawbacks and it is not possible to achieve its purpose. For example, the former compression coil spring is
When compressed, it shifts from the center and gets caught in the joint between the sealing plate and the terminal plate, and there are drawbacks such as not being able to fully compress and returning from the compressed state to the original state.
【０００５】また、後者の円錐コイルバネは、バネの特
性が非線形な荷重とたわみの関係になり、弁孔から多量
の発生ガスを放出したい場合には、より大きな力が必要
となって、俊敏な動きを要求される場合に充分に対応す
ることができないという問題があった。The latter conical coil spring has a characteristic that the spring has a non-linear load and a flexure relationship, and when a large amount of generated gas is to be discharged from the valve hole, a larger force is required, which is agile. There was a problem in that it was not possible to adequately respond when movement was required.
【０００６】したがって、本発明は、上記従来技術にお
ける問題点を解決し、確実に作動する防爆安全機構を備
えた安全性の高い密閉形アルカリ蓄電池を提供すること
を目的とする。Therefore, an object of the present invention is to solve the above problems in the prior art and to provide a highly safe sealed alkaline storage battery provided with an explosion-proof safety mechanism that operates reliably.
【０００７】[0007]
【課題を解決するための手段】上記目的を達成するため
の本発明の構成をその実施例に対応する図１を用いて説
明すると、本発明は、弁体１２を押圧するバネとして、
一方の端部１５ａがピッグテールエンドの圧縮コイルバ
ネ１５を用い、そのピッグテールエンド側の端部１５ａ
で弁体１２を押圧して弁孔１０を閉塞する構成を採用し
たものである。The structure of the present invention for achieving the above object will be described with reference to FIG. 1 corresponding to the embodiment. The present invention provides a spring for pressing the valve body 12,
A compression coil spring 15 whose one end 15a is a pigtail end is used, and the end 15a on the pigtail end side is used.
In this configuration, the valve body 12 is pressed to close the valve hole 10.
【０００８】[0008]
【作用】弁体１２を押圧する圧縮コイルバネ１５の一方
の端部１５ａがピッグテールエンドになっていて、その
ピッグテールエンド側の端部１５ａが他の部分より径が
小さいので、圧縮したときに、その端部１５ａが封口板
７と端子板８との接合部分にひっかかることがない。し
たがって、圧縮はもとより、その圧縮状態から元の状態
への復帰がスムーズに行われる。The one end 15a of the compression coil spring 15 that presses the valve body 12 is a pigtail end, and the end 15a on the pigtail end side has a smaller diameter than the other parts. The end portion 15a does not get caught in the joint portion between the sealing plate 7 and the terminal plate 8. Therefore, not only the compression but also the restoration from the compressed state to the original state is smoothly performed.
【０００９】また、バネ特性は、円錐コイルバネのよう
な非線形な荷重とたわみとの関係ではなく、線形な荷重
とたわみの関係になるので、防爆安全機構の作動のバラ
ツキが少ない。したがって、電池内圧が急速に上昇した
場合にも確実に対応することができ、高い安全性が確保
される。Further, the spring characteristic has a linear load-deflection relationship, rather than a non-linear load-deflection relationship like that of a conical coil spring, so there is little variation in the operation of the explosion-proof safety mechanism. Therefore, even when the internal pressure of the battery rapidly rises, it is possible to reliably deal with it, and high safety is secured.
【００１０】[0010]
【実施例】つぎに、本発明を図示の実施例に基づいて具
体的に説明する。EXAMPLES Next, the present invention will be specifically described based on the illustrated examples.
【００１１】図１は本発明の密閉形アルカリ蓄電池の一
実施例を示す要部破断正面図であり、この図１におい
て、１は有底円筒状で金属製の電池ケースで、２は封口
蓋であり、３は環状ガスケットである。FIG. 1 is a fragmentary front view showing an embodiment of a sealed alkaline storage battery of the present invention. In FIG. 1, 1 is a cylindrical battery case with a bottom and is made of metal, and 2 is a sealing lid. And 3 is an annular gasket.
【００１２】４は正極で、５は負極であり、６はセパレ
ータであって、正極４、負極５ともシート状をしてお
り、これらの正極４と負極５とはそれらの間にセパレー
タ６を介在させて渦巻状に巻回して渦巻状電極体にし
て、上記電池ケース１内に収容されている。Reference numeral 4 is a positive electrode, 5 is a negative electrode, 6 is a separator, and both the positive electrode 4 and the negative electrode 5 are sheet-shaped. The positive electrode 4 and the negative electrode 5 have a separator 6 therebetween. It is housed in the battery case 1 by being interposed and spirally wound to form a spiral electrode body.
【００１３】上記正極４には正極活物質として水酸化ニ
ッケルが用いられ、負極５には負極活物質として水素を
可逆的に吸蔵・放出できる水素吸蔵合金が用いられてい
る。そして、上記電池ケース１内には水酸化カリウム水
溶液からなるアルカリ電解液が注入され、その開口部に
環状ガスケット３を介して封口蓋２が配置され、電池ケ
ース１の開口縁部をかしめることによって、電池ケース
１の開口部は封口蓋２と環状ガスケット３とで封口され
ている。Nickel hydroxide is used as the positive electrode active material in the positive electrode 4 and a hydrogen storage alloy capable of reversibly storing and releasing hydrogen is used as the negative electrode active material in the negative electrode 5. Then, an alkaline electrolyte made of an aqueous potassium hydroxide solution is injected into the battery case 1, and a sealing lid 2 is arranged in the opening of the battery case 1 with an annular gasket 3 interposed therebetween, and the opening edge of the battery case 1 is caulked. Thus, the opening of the battery case 1 is sealed by the sealing lid 2 and the annular gasket 3.
【００１４】封口蓋２は、封口板７と端子板８とでその
骨格部分が構成され、封口板７はその中央部が凹部にな
っていて、端子板８は中央部が凸部になっており、上記
封口板７と端子板８とは、それらの周縁部で溶接一体化
され、それらの中央部間には弁室９が形成されている。The sealing lid 2 has a skeleton portion composed of a sealing plate 7 and a terminal plate 8. The central portion of the sealing plate 7 is a concave portion and the central portion of the terminal plate 8 is a convex portion. The sealing plate 7 and the terminal plate 8 are welded and integrated at their peripheral portions, and a valve chamber 9 is formed between their central portions.
【００１５】上記封口板７には、その凹部のほぼ中心部
に電池内部と上記弁室９とに連通する弁孔１０が設けら
れ、上記端子板８には、その凸部の側面に電池外部と上
記弁室９とに連通する排気孔１１が設けられている。The sealing plate 7 is provided with a valve hole 10 which communicates with the inside of the battery and the valve chamber 9 at approximately the center of the recess, and the terminal plate 8 is provided with the outside of the battery on the side surface of the projection. And an exhaust hole 11 communicating with the valve chamber 9 is provided.
【００１６】そして、上記弁室９の内部には、弁体１２
と圧縮コイルバネ１５とが収容され、弁体１２はゴムで
形成された弾性体１３と金属板１４とで構成され、その
金属板１４に上記圧縮コイルバネ１５の一方の端部１５
ａが当接して、弁体１２は該圧縮コイルバネ１５によっ
て封口板７に押圧され、その弾性体１３が前記弁孔１０
を閉塞して電池内部を密閉状態にしている。Inside the valve chamber 9, the valve body 12
And the compression coil spring 15 are housed, and the valve body 12 is composed of an elastic body 13 made of rubber and a metal plate 14, and the metal plate 14 has one end 15 of the compression coil spring 15 attached thereto.
a comes into contact with the valve body 12, the compression coil spring 15 presses the valve body 12 against the sealing plate 7, and the elastic body 13 of the valve body 12 presses the valve hole 10.
Is closed to keep the inside of the battery airtight.
【００１７】上記圧縮コイルバネ１５は、一方の端部１
５ａがピッグテールエンドであってそのピッグテールエ
ンド側の端部１５ａが上記弁体１２の金属板１４に当接
し、他方の端部１５ｂは端子板８の凸部の上部内面に当
接している。The compression coil spring 15 has one end 1
5a is a pigtail end, and the end portion 15a on the pigtail end side abuts on the metal plate 14 of the valve body 12, and the other end portion 15b abuts on the upper inner surface of the convex portion of the terminal plate 8.
【００１８】この圧縮コイルバネ１５は、圧縮した状態
で弁室９に収容され、弁体１２を押圧し、該弁体１２が
弁孔１０を閉塞するようにしているが、より強い力がか
かった場合にはさらに圧縮可能であって、電池の内圧が
上昇した場合には、圧縮し、それによって弁体１２と弁
孔１０との間に隙間が生じ、電池内部のガスを電池外部
に放出させ得る。The compression coil spring 15 is accommodated in the valve chamber 9 in a compressed state and presses the valve body 12 so that the valve body 12 closes the valve hole 10, but a stronger force is applied. In this case, it can be further compressed, and when the internal pressure of the battery rises, the internal pressure of the battery is compressed, whereby a gap is created between the valve body 12 and the valve hole 10, and the gas inside the battery is released to the outside of the battery. obtain.
【００１９】正極４と封口蓋２の封口板７とは、リード
体１６で接続され、それによって封口蓋２の端子板８は
正極端子として作用する。そして、渦巻状電極体上には
絶縁材１７が配設され、この絶縁材１７によって封口板
７と負極５との接触が防止される。The positive electrode 4 and the sealing plate 7 of the sealing lid 2 are connected by a lead body 16, whereby the terminal plate 8 of the sealing lid 2 acts as a positive electrode terminal. An insulating material 17 is disposed on the spiral electrode body, and the insulating material 17 prevents the sealing plate 7 and the negative electrode 5 from coming into contact with each other.
【００２０】この図１では図示していないが、負極５と
電池ケース１とは、電池ケース１の底部において、リー
ド体で接続され、それによって電池ケース１は負極端子
としての作用を兼ねるようになる。また、図示していな
いが、渦巻状電極体の下部にも絶縁材が配設され、電池
ケース１と正極４との接触による内部短絡の発生が防止
されるように構成されている。なお、本発明において、
電池ケース１内に収容される電池要素とは、前記の正極
４、負極５、セパレータ６、電解液などをはじめ、リー
ド体、絶縁材などを含んだものをいう。Although not shown in FIG. 1, the negative electrode 5 and the battery case 1 are connected by a lead body at the bottom of the battery case 1, so that the battery case 1 also functions as a negative electrode terminal. Become. Although not shown, an insulating material is also provided below the spiral electrode body so that an internal short circuit due to contact between the battery case 1 and the positive electrode 4 is prevented. In the present invention,
The battery element accommodated in the battery case 1 includes the positive electrode 4, the negative electrode 5, the separator 6, the electrolytic solution and the like, as well as the lead body and the insulating material.
【００２１】上記構成の密閉形アルカリ蓄電池において
は、電池内圧が低い状態では、圧縮コイルバネ１５の押
圧により弁体１２が弁孔１０を閉塞しているので、電池
内部が密閉状態に保たれる。In the sealed alkaline storage battery having the above structure, when the internal pressure of the battery is low, the valve body 12 closes the valve hole 10 by pressing the compression coil spring 15, so that the inside of the battery is kept sealed.
【００２２】しかし、電池内部にガスが発生して、電池
の内圧が設定圧力（本実施例では１５ｋｇ／ｃｍ2 に設
定されているが、一般には電池の種類に応じて１５〜２
０ｋｇ／ｃｍ2 程度に設定される）に達した場合には、
圧縮コイルバネ１５が圧縮して、弁孔１０と弁体１２と
の間に隙間が生じ、電池内部のガスは弁孔１０および排
気孔１１を通って電池外部に放出され、電池ケース１が
破裂したり、封口蓋２が飛び出すなどの電池破壊が未然
に防止される。However, gas is generated inside the battery, and the internal pressure of the battery is set to a set pressure (15 kg / cm 2 in this embodiment, but generally 15 to 2 depending on the type of battery).
0kg / cm 2 is set),
The compression coil spring 15 compresses to create a gap between the valve hole 10 and the valve body 12, the gas inside the battery is discharged to the outside of the battery through the valve hole 10 and the exhaust hole 11, and the battery case 1 bursts. It is possible to prevent the battery from being destroyed, such as the sealing lid 2 popping out.
【００２３】圧縮コイルバネ１５の弁体１２を押圧する
側の端部１５ａは、ピッグテールエンドであって、他の
部分より径が小さいので、上記圧縮時に封口板７と端子
板８との接合部分にひっかかることがなく、圧縮はもと
より、圧縮状態から元の状態への復帰もスムーズに行い
得る。Since the end portion 15a of the compression coil spring 15 on the side that presses the valve body 12 is a pigtail end and has a smaller diameter than the other portions, the end portion 15a is connected to the sealing plate 7 and the terminal plate 8 at the time of compression. It is possible to smoothly perform not only the compression but also the restoration from the compressed state to the original state without being caught.
【００２４】また、圧縮コイルバネ１５は、基本的には
等ピッチコイルバネであり、そのたわみと荷重の関係は
直線式であるので、事故や誤使用などにより電池反応が
急激に進行し、電池内部に大量のガスが発生して、電池
内圧が急激に上昇した場合にも充分に対応することがで
きるので、高い安全性が確保できる。Further, the compression coil spring 15 is basically an equal pitch coil spring, and since the relationship between the deflection and the load is linear, the battery reaction rapidly progresses due to accident or misuse and the inside of the battery Even when a large amount of gas is generated and the internal pressure of the battery suddenly rises, it is possible to sufficiently cope with it, so that high safety can be secured.
【００２５】そして、電池内部のガスを電池外部に放出
して内圧が低下すると、圧縮コイルバネ１５が元の状態
に復帰して弁体１２を押圧し、該弁体１２が弁孔１０を
閉塞するので、ガス漏れや液漏れを生じることなく、電
池は本来の充放電機能を発揮することができる。When the gas inside the battery is discharged to the outside of the battery and the internal pressure decreases, the compression coil spring 15 returns to its original state and presses the valve body 12, and the valve body 12 closes the valve hole 10. Therefore, the battery can exert its original charging / discharging function without causing gas leakage or liquid leakage.
【００２６】なお、実施例では、活物質が水酸化ニッケ
ル−水素吸蔵合金系の密閉形アルカリ蓄電池について説
明したが、本発明はそれのみに限られるものではなく、
たとえばニッケル−カドミウム系の電池や二酸化マンガ
ン−水素吸蔵合金系の電池など、電池内部にガスが発生
する可能性のある密閉形アルカリ蓄電池のいずれに対し
ても適用することができる。In the embodiment, the sealed alkaline storage battery whose active material is nickel hydroxide-hydrogen storage alloy is explained, but the present invention is not limited to this.
For example, the present invention can be applied to any sealed alkaline storage battery in which gas may be generated inside the battery, such as a nickel-cadmium battery and a manganese dioxide-hydrogen storage alloy battery.
【００２７】[0027]
【発明の効果】以上説明したように、本発明では、電池
内圧の異常上昇時に電池内部の発生ガスを電池外部に放
出させて電池破壊を防止する防爆安全機構として、一方
の端部１５ａがピッグテールエンドである圧縮コイルバ
ネ１５を用い、この圧縮コイルバネ１５で弁体１２を押
圧して弁孔１０を閉塞する構成を採用しているので、防
爆安全機構がスムーズに作動し、かつ急速な電池内圧の
上昇にも確実に対応でき、高い安全性が得られるように
なった。As described above, according to the present invention, one end 15a is a pigtail as an explosion-proof safety mechanism that releases the gas generated inside the battery to the outside of the battery when the internal pressure of the battery rises abnormally to prevent the battery from being destroyed. Since the compression coil spring 15 which is the end is used and the valve body 12 is pressed by the compression coil spring 15 to close the valve hole 10, the explosion-proof safety mechanism operates smoothly and a rapid battery internal pressure We were able to respond reliably to climbs and gained high safety.
【００２８】また、本発明によれば、電池内部のガスを
電池外部に放出して内圧が低下したときは、圧縮コイル
バネ１５が元の状態に復帰して、再び密閉状態が維持さ
れるので、電池はガス漏れや液漏れを生じることなく、
本来の充放電機能を支障なく発揮することができる。Further, according to the present invention, when the gas inside the battery is discharged to the outside of the battery and the internal pressure drops, the compression coil spring 15 returns to its original state and the sealed state is maintained again. The battery does not leak gas or liquid,
The original charge / discharge function can be exerted without any trouble.
【図１】本発明の密閉形アルカリ蓄電池の一実施例を示
す要部破断正面図である。FIG. 1 is a fragmentary front view showing an embodiment of a sealed alkaline storage battery of the present invention.
１ 電池ケース ２ 封口蓋 ３ 環状ガスケット ４ 正極 ５ 負極 ６ セパレータ ７ 封口板 ８ 端子板 ９ 弁室 １０ 弁孔 １１ 排気孔 １２ 弁体 １３ 弾性体 １４ 金属板 １５ 圧縮コイルバネ １５ａ 一方の端部 1 Battery Case 2 Sealing Lid 3 Annular Gasket 4 Positive Electrode 5 Negative Electrode 6 Separator 7 Sealing Plate 8 Terminal Plate 9 Valve Chamber 10 Valve Hole 11 Exhaust Hole 12 Valve Disc 13 Elastic Body 14 Metal Plate 15 Compression Coil Spring 15a One End
Claims (1)
部を封口蓋２と環状ガスケット３とで封口してなる密閉
形アルカリ蓄電池において、上記封口蓋２は、封口板７
と端子板８を有し、封口板７の中央部と端子板８の中央
部との間には弁室９が形成され、上記封口板７には電池
内部と上記弁室９とに連通する弁孔１０が設けられ、上
記端子板８には電池外部と上記弁室９とに連通する排気
孔１１が設けられ、上記弁室９には弁体１２と圧縮コイ
ルバネ１５とが収容され、上記弁体１２は弾性体１３と
金属板１４とで構成され、上記圧縮コイルバネ１５の一
方の端部１５ａはピッグテールエンドであって、そのピ
ッグテールエンド側の端部１５ａが上記弁体１２の金属
板１４に当接して弁体１２を封口板７に押圧し、該弁体
１２の弾性体１４が上記弁孔１０を閉塞していることを
特徴とする密閉形アルカリ蓄電池。1. A sealed alkaline storage battery in which an opening of a battery case 1 accommodating a battery element is sealed by a sealing lid 2 and an annular gasket 3, wherein the sealing lid 2 is a sealing plate 7.
And a terminal plate 8, and a valve chamber 9 is formed between the central portion of the sealing plate 7 and the central portion of the terminal plate 8. The sealing plate 7 communicates with the inside of the battery and the valve chamber 9. A valve hole 10 is provided, an exhaust hole 11 that communicates with the outside of the battery and the valve chamber 9 is provided in the terminal plate 8, and a valve body 12 and a compression coil spring 15 are accommodated in the valve chamber 9, The valve body 12 is composed of an elastic body 13 and a metal plate 14, one end 15a of the compression coil spring 15 is a pigtail end, and the end 15a on the pigtail end side is the metal plate 14 of the valve body 12. The sealed alkaline storage battery is characterized in that the valve body 12 is pressed against the sealing plate 7 by abutting against it, and the elastic body 14 of the valve body 12 closes the valve hole 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP02452592A JP3209438B2 (en) | 1992-01-14 | 1992-01-14 | Sealed alkaline storage battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP02452592A JP3209438B2 (en) | 1992-01-14 | 1992-01-14 | Sealed alkaline storage battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05190201A true JPH05190201A (en) | 1993-07-30 |
| JP3209438B2 JP3209438B2 (en) | 2001-09-17 |
Family
ID=12140575
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP02452592A Expired - Fee Related JP3209438B2 (en) | 1992-01-14 | 1992-01-14 | Sealed alkaline storage battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3209438B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20010066067A (en) * | 1999-12-31 | 2001-07-11 | 이계안 | Spring vent system for Ni-MH battery |
| KR100615160B1 (en) * | 1999-11-05 | 2006-08-25 | 삼성에스디아이 주식회사 | Cap assembly for a battery |
| EP2561563A1 (en) * | 2010-04-23 | 2013-02-27 | BYD Company Limited | Explosion-proof device and power battery and battery module comprising the same |
| CN112366428A (en) * | 2020-11-05 | 2021-02-12 | 武汉力神动力电池系统科技有限公司 | Lithium ion energy storage battery |
-
1992
- 1992-01-14 JP JP02452592A patent/JP3209438B2/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100615160B1 (en) * | 1999-11-05 | 2006-08-25 | 삼성에스디아이 주식회사 | Cap assembly for a battery |
| KR20010066067A (en) * | 1999-12-31 | 2001-07-11 | 이계안 | Spring vent system for Ni-MH battery |
| EP2561563A1 (en) * | 2010-04-23 | 2013-02-27 | BYD Company Limited | Explosion-proof device and power battery and battery module comprising the same |
| EP2561563A4 (en) * | 2010-04-23 | 2013-10-02 | Byd Co Ltd | Explosion-proof device and power battery and battery module comprising the same |
| CN112366428A (en) * | 2020-11-05 | 2021-02-12 | 武汉力神动力电池系统科技有限公司 | Lithium ion energy storage battery |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3209438B2 (en) | 2001-09-17 |
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|---|---|---|---|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
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