JPS63310553A - Sealed lead-acid battery - Google Patents
Sealed lead-acid batteryInfo
- Publication number
- JPS63310553A JPS63310553A JP62147614A JP14761487A JPS63310553A JP S63310553 A JPS63310553 A JP S63310553A JP 62147614 A JP62147614 A JP 62147614A JP 14761487 A JP14761487 A JP 14761487A JP S63310553 A JPS63310553 A JP S63310553A
- Authority
- JP
- Japan
- Prior art keywords
- acid battery
- sealed lead
- rubber plate
- groove
- safety valve
- 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
- 239000002253 acid Substances 0.000 title claims abstract description 23
- 229920002545 silicone oil Polymers 0.000 claims abstract description 7
- 230000002093 peripheral effect Effects 0.000 abstract 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 5
- 229910001882 dioxygen Inorganic materials 0.000 description 5
- 239000007789 gas Substances 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007773 negative electrode material Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000019635 sulfation Effects 0.000 description 1
- 238000005670 sulfation reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- H01M50/30—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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Gas Exhaust Devices For Batteries (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、密閉形鉛蓄電池の安全弁に関するものである
。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a safety valve for a sealed lead-acid battery.
従来の技術
近年、密閉形鉛蓄電池は、ボータプル電源をはシメコン
ピュータのバックアップ電源などとして需要が拡大しつ
つある。このような密閉形鉛蓄電池は、充電中に水の電
気分解により正極板から発生した酸素ガスを負極活物質
である海線状鉛と夏応させて回収するとともに負極板を
部分的に未充電状頗にすることにより、負極板からの水
素ガス発生がおこらない機構を備えているので、通常は
電池外部にガスが散逸することはない。しかしながら、
大電流で過充電した場合には、負極板での酸素ガス吸収
能力よりも、正極板で発生する酸素ガス発生量が多いう
えに負極板からも水素ガスが発生するため、完全密閉す
ると電池内部の圧力がかなり上がる。そのため、電池内
圧が上昇すると自然に開弁し、内部ガスを電池外部の放
出するような安全弁が設けられている。また、密閉形蓄
電池においては、自然放置すると負極板がさらに酸素ガ
スを吸収するため減圧状態となる。この場合、電池内の
気密性が保持されていないと、空気中に存在する酸素ガ
スを吸込み、負極板が急激に劣化（サルフエーション）
してしまう。し九がって、排気ロｑノ内壁と安全弁との
接触面には平滑密着さが要求され、安全弁の気密性に対
する注意がはられれている。BACKGROUND OF THE INVENTION In recent years, the demand for sealed lead-acid batteries has been increasing as a backup power source for computers that use multiple power sources. Such a sealed lead-acid battery collects oxygen gas generated from the positive electrode plate through electrolysis of water during charging by reacting with the linear lead that is the negative electrode active material, and also recovers the negative electrode plate partially uncharged. By making the battery shaped like this, a mechanism is provided to prevent hydrogen gas from being generated from the negative electrode plate, so normally gas will not escape to the outside of the battery. however,
When overcharging with a large current, the amount of oxygen gas generated at the positive electrode plate is greater than the oxygen gas absorption capacity of the negative electrode plate, and hydrogen gas is also generated from the negative electrode plate. pressure increases considerably. Therefore, a safety valve is provided that automatically opens when the internal pressure of the battery increases and releases the internal gas to the outside of the battery. In addition, in a sealed storage battery, if left alone, the negative electrode plate further absorbs oxygen gas, resulting in a reduced pressure state. In this case, if the airtightness inside the battery is not maintained, oxygen gas present in the air will be inhaled, causing rapid deterioration of the negative electrode plate (sulfation).
Resulting in. Therefore, the contact surface between the inner wall of the exhaust chamber and the safety valve is required to have smooth and close contact, and attention is paid to the airtightness of the safety valve.
以下に一般的な密閉形鉛蓄電池について説明する。第３
図は一般的な密閉形鉛蓄電池の構造を示すものであり、
この密閉形鉛蓄電池は、電槽１１と、ふ７？−１２と、
端子１３と、さらに正極板１４、負極板１５およびセパ
レータ１６よりなる極板群１７とから構成されている。A typical sealed lead-acid battery will be explained below. Third
The figure shows the structure of a typical sealed lead-acid battery.
This sealed lead-acid battery has a battery case 11 and a case 7? -12 and
It consists of a terminal 13 and a plate group 17 comprising a positive plate 14, a negative plate 15, and a separator 16.
ふた１２には、安全弁１８が設けられている。A safety valve 18 is provided on the lid 12.
次に、従来の密閉形鉛蓄電池の安全弁について説明する
。第２図は従来の密閉形鉛蓄電池の安全弁の構造の一例
を示すものであり、電槽にある排気口１９の内壁および
周囲上面にシリコーンオイルを塗布し、この個所に安全
弁となるゴム板２０を密着させ、これをクッション材２
１を介して電槽ふ几２２Ｖｃより押えつけて電池内の気
密性を保持している。Next, a safety valve for a conventional sealed lead-acid battery will be explained. Figure 2 shows an example of the structure of a conventional safety valve for a sealed lead-acid battery. Silicone oil is applied to the inner wall and upper surface of the exhaust port 19 in the battery case, and a rubber plate 20 that serves as a safety valve is placed at this location. and attach it to the cushion material 2.
1 from the battery case valve 22Vc to maintain airtightness inside the battery.
発明が解決しようとする問題点
しかしながら上記の従来の構成では、長期にわたって電
池を使用する場合に、徐々にではあるが、シリコーンオ
イルが揮発やガス排気時の飛散などにより減少するため
、長期にわたって電池内の気密性を保持することができ
ないという欠点を有していた。塘た、使用途中で安全弁
にオイ／Ｖを塗布しなおすなどということは現実的には
不可能に近いことである。Problems to be Solved by the Invention However, with the above conventional configuration, when the battery is used for a long period of time, silicone oil gradually decreases due to volatilization and scattering during gas exhaust. It had the disadvantage of not being able to maintain airtightness inside. However, it is practically impossible to reapply O/V to the safety valve during use.
本発明は、上記問題点を解決するもので、簡単な構成で
電池の気密性を長期間保持することのできる密閉形鉛蓄
電池を提供することを目的とする。The present invention solves the above-mentioned problems, and aims to provide a sealed lead-acid battery that can maintain airtightness of the battery for a long period of time with a simple structure.
問題点を解決するための手段
上記問題点を解決する几め、本発明の密閉形鉛蓄電池は
、電槽に設は九排気口の周囲上面にシリコーンオイ〃を
塗布するとともにオイル溜め用の溝を設け、この排気口
を覆うようにゴム板を設置して安全弁を構成したもので
ある。Means for Solving the Problems In order to solve the above problems, the sealed lead-acid battery of the present invention is provided in a battery case by applying silicone oil to the upper surface around the exhaust port and installing a groove for an oil reservoir. A safety valve is constructed by installing a rubber plate to cover the exhaust port.
作用
上記構成によれば、排気口の周囲上面に設けられたオイ
ル溜め用の溝からのオイ／Ｌ／ｖｃより、排気口を覆う
ように設置されたゴム板に常時オイルが供給されること
になるので、電池を長期にわたって使用する場合でも安
全弁の気密性は保持される。Effect According to the above configuration, oil is constantly supplied to the rubber plate installed to cover the exhaust port from the oil/L/vc from the oil reservoir groove provided on the upper surface around the exhaust port. Therefore, the airtightness of the safety valve is maintained even when the battery is used for a long period of time.
実施例
以下本発明の一実施例について、図面に基づいて説明す
る。EXAMPLE An example of the present invention will be described below based on the drawings.
第１図は本発明の一実施例における密閉形鉛蓄電池の安
全弁の断面図である。第１図において、ｌは直径約７ｆ
ｌの排気口であり、その周囲上面部１ａに直径約８ｆｌ
の同心円状に幅１ｍ、深さ０．７＋ｏ＋のオイル溜め用
の溝２が設けられ、排気口ｌの上面部１ａとこの上面部
１ａに設けられた溝２を覆うようにゴム板３が設置され
、このゴふ板３と排気口ｌの上面部１ａとの間および溝
２の中にシリコーンオイ／Ｉ／４を充填して安全弁が構
成されており、ゴム板３はクッション５を介して電槽ふ
几６により押さえられている、
以上の構成において、第１図に示す本発明の安全弁構造
を有する密閉形鉛蓄電池と、第２図に示す従来の安全弁
構造を有する密閉形鉛蓄電池とを各２０個ずつ準備して
２年間作存し九後、ヒートショック試験を行つ九。その
結果本発明の安全弁の構造をもつ鉛蓄電池は、容量、気
密性ともに問題はなかつ穴が、第２図の従来の安全弁の
構造をもつ鉛蓄電池では、気密不良や容量低下のものが
２個見られ九〇
以上のように本実施例によれば、排気口ｌの周囲上面に
設けられｔオイル溜め用の溝２ｒｃより、排気口を覆う
ように設置されｔゴム板に常時オイルが供給されるので
、電池を長期にわたって使用する場合でも安全弁の気密
性は保持される。FIG. 1 is a sectional view of a safety valve of a sealed lead-acid battery according to an embodiment of the present invention. In Figure 1, l is approximately 7f in diameter.
It is an exhaust port with a diameter of about 8fl on the upper surface part 1a around it.
A groove 2 for an oil reservoir with a width of 1 m and a depth of 0.7+o+ is provided in a concentric circle, and a rubber plate 3 is installed to cover the upper surface 1a of the exhaust port l and the groove 2 provided on the upper surface 1a. A safety valve is constructed by filling silicone oil/I/4 between the gofu plate 3 and the upper surface 1a of the exhaust port 1 and into the groove 2. In the above configuration, a sealed lead-acid battery having the safety valve structure of the present invention shown in FIG. 1 and a sealed lead-acid battery having the conventional safety valve structure shown in FIG. We prepared 20 of each type and allowed them to survive for two years, after which time we conducted a heat shock test. As a result, the lead-acid battery with the safety valve structure of the present invention had no problems with either capacity or airtightness and had no holes, whereas the lead-acid battery with the conventional safety valve structure shown in Figure 2 had two holes with poor airtightness or reduced capacity. As shown in Figure 90, according to this embodiment, oil is constantly supplied to the rubber plate installed to cover the exhaust port from the oil reservoir groove 2rc provided on the upper surface around the exhaust port l. Therefore, the airtightness of the safety valve is maintained even when the battery is used for a long period of time.
発明の効果
以上のように本発明によれば、排気口の周囲上面にオイ
ル溜め用の溝を設けたことにより、排気口を覆うように
設置されたゴム板に常時オイ／ｌ／を供給することがで
きるので、気密性ｔｉ持でき、密閉形鉛蓄電池の寿命を
伸ばし、かつ容量を安定化できるものであり、その工業
的価値は大である。Effects of the Invention As described above, according to the present invention, oil is constantly supplied to the rubber plate installed to cover the exhaust port by providing an oil reservoir groove on the upper surface around the exhaust port. Therefore, it is possible to maintain airtightness, extend the life of the sealed lead-acid battery, and stabilize the capacity, and its industrial value is great.
第１図は本発明の一実施例を示す密閉形鉛蓄電池の安全
弁の断面図、第２図は従来の密閉形鉛蓄電池の安全弁の
断面図、第３図は従来の密閉形鉛蓄電池の一部断面針視
図である。
１・・・排気口、２・・・溝、３・・・ゴム板、４・・
・シリコーンオイル、６・・・電槽ふｔ０
第１図
３−−−フゞム１友Fig. 1 is a sectional view of a safety valve of a sealed lead-acid battery showing an embodiment of the present invention, Fig. 2 is a sectional view of a safety valve of a conventional sealed lead-acid battery, and Fig. 3 is a sectional view of a safety valve of a conventional sealed lead-acid battery. It is a partial cross-sectional needle view. 1...Exhaust port, 2...Groove, 3...Rubber plate, 4...
・Silicone oil, 6...Battery case foot 0 Figure 1 3 --- Film 1 friend
Claims (1)
収納した電槽に排気口を備え、この排気口の周囲上面に
シリコーンオイルを塗布するとともにオイル溜め用の溝
を設け、これを覆うようにゴム板を設置して安全弁を構
成した密閉形鉛蓄電池。1. A battery case containing a group of electrode plates consisting of a positive electrode plate, a negative electrode plate, and a separator is equipped with an exhaust port, and silicone oil is applied to the upper surface around the exhaust port, and a groove for an oil reservoir is provided to cover this. A sealed lead-acid battery with a rubber plate installed to form a safety valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62147614A JPS63310553A (en) | 1987-06-12 | 1987-06-12 | Sealed lead-acid battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62147614A JPS63310553A (en) | 1987-06-12 | 1987-06-12 | Sealed lead-acid battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63310553A true JPS63310553A (en) | 1988-12-19 |
Family
ID=15434305
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62147614A Pending JPS63310553A (en) | 1987-06-12 | 1987-06-12 | Sealed lead-acid battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63310553A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012156489A (en) * | 2011-01-06 | 2012-08-16 | Mitsubishi Electric Corp | Storage element |
-
1987
- 1987-06-12 JP JP62147614A patent/JPS63310553A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012156489A (en) * | 2011-01-06 | 2012-08-16 | Mitsubishi Electric Corp | Storage element |
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