JPH0612666B2 - Sealed lead acid battery - Google Patents
Sealed lead acid batteryInfo
- Publication number
- JPH0612666B2 JPH0612666B2 JP60104594A JP10459485A JPH0612666B2 JP H0612666 B2 JPH0612666 B2 JP H0612666B2 JP 60104594 A JP60104594 A JP 60104594A JP 10459485 A JP10459485 A JP 10459485A JP H0612666 B2 JPH0612666 B2 JP H0612666B2
- Authority
- JP
- Japan
- Prior art keywords
- valve body
- battery
- temperature
- sealed lead
- acid 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.)
- Expired - Lifetime
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
- 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
- Gas Exhaust Devices For Batteries (AREA)
Description
【発明の詳細な説明】 産業上の利用分野 本発明は酸素サイクル反応による密閉形鉛蓄電池に関す
るものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sealed lead acid battery by an oxygen cycle reaction.
従来の技術とその問題点 酸素サイクル反応による密閉形鉛蓄電池は種々の機器に
組込まれて用いられているが、機器の発熱の影響を受け
特に夏期には40℃を越える高温度の雰囲気にさらされ
る。電池は定電圧充電することが多いが、高温度のとき
には大電流が流れる。このときの電力は電池内で酸素サ
イクル反応に消費され熱を発生するので電池は環境温度
よりも高温になる。周知のように電槽材料としては主と
して熱可塑性プラスチックが用いられているから、高温
下では小さな力で著しく変形する。Conventional technology and its problems Sealed lead acid batteries by oxygen cycle reaction are used by being incorporated in various devices, but they are exposed to the heat of the devices and exposed to high temperature atmosphere exceeding 40 ° C especially in summer. Be done. Batteries are often charged with a constant voltage, but a large current flows at a high temperature. The electric power at this time is consumed by the oxygen cycle reaction in the battery to generate heat, so that the temperature of the battery becomes higher than the ambient temperature. As is well known, since thermoplastics are mainly used as the battery case material, they are remarkably deformed by a small force at high temperature.
一方、密閉電池では排気部に弁機能を持たせることが必
須の要件となっており、電池は弁によって定まるある加
圧状態に保持される。したがって、高温になると電槽が
膨れて極板とセパレータとに間隙を生じて充放電性能が
低下したり、また電槽の変形によって組込まれた機器か
ら電池を脱着することができなくなるといった問題があ
った。On the other hand, in the sealed battery, it is an essential requirement that the exhaust part have a valve function, and the battery is held in a certain pressurized state determined by the valve. Therefore, when the temperature rises, the battery case swells to form a gap between the electrode plate and the separator, which deteriorates charge / discharge performance, and the battery cannot be detached from the assembled device due to the deformation of the battery container. there were.
問題点を解決するための手段 本発明は酸素サイクル反応による密閉形鉛蓄電池におい
て、排気筒の開口部に装着された弾力性材料からなるキ
ャップ状の弁体と、温度の変化に応じて変形し、弁体上
面を押圧するための枠体とを有し、この枠体は弁体上面
を押圧するものであり、かつ温度上昇に応じて弁体への
押圧力が軽減する方向に変形するものであって、高温に
なるほど低い圧力で動作する弁を有することにある。MEANS FOR SOLVING THE PROBLEMS The present invention relates to a sealed lead-acid battery by an oxygen cycle reaction, which is a cap-shaped valve body made of an elastic material attached to an opening of an exhaust stack and is deformed according to a change in temperature. A frame for pressing the upper surface of the valve body, the frame body pressing the upper surface of the valve body, and deforming in a direction in which the pressing force on the valve body is reduced in response to a temperature rise. However, the higher the temperature is, the lower the pressure is to operate.
この種の密閉形鉛蓄電池には、セパレータとして、ガラ
スやプラスチックの多孔体に電解液を含浸、保持させた
ものと、電解液をコロイダルシリカやアルミナでゲル化
したものがある。This type of sealed lead-acid battery includes, as a separator, one in which a porous body of glass or plastic is impregnated with and held by an electrolytic solution, and one in which the electrolytic solution is gelled with colloidal silica or alumina.
密閉反応には、過充電などで正極板で発生した酸素ガス
がセパレータを透過、拡散して負極板に到達して接触
し、次式にしたがって負極活物質である鉛を酸化して硫
酸鉛を生成することにある。Ｐｂ＋1/2Ｏ２＋Ｈ２SO4→
ＰｂSO4＋Ｈ２Ｏ 電池内がある加圧状態となったときはじめてガスを放出
するという弁の機能は、正極板から発生した酸素ガスを
電池内に滞溜させて負極板と反応させるのに役立ってい
る。この密閉反応は高温であるほど速やかであり、弁は
低い圧力で作動しても充分な密閉反応が確保できる。In the closed reaction, oxygen gas generated in the positive electrode plate due to overcharging, etc. permeates and diffuses through the separator to reach the negative electrode plate and come into contact with it. To generate. Pb + 1 / 2O 2 + H 2 SO 4 →
The function of the valve, which releases gas only when the PbSO 4 + H 2 O battery is in a certain pressurized state, helps to retain the oxygen gas generated from the positive electrode plate in the battery and react it with the negative electrode plate. ing. The higher the temperature, the faster the closed reaction, and a sufficient closed reaction can be secured even if the valve operates at a low pressure.
実施例 本発明になる排気部の実施例を第１図によって説明す
る。１は電槽の蓋、２は排気筒で蓋１に気密に設けられ
ており、２′で開口している。３は耐酸性、弾力性材料
たとえばニトリルゴム、イソプレンゴム、ブチルゴム、
弗素ゴムなどからなるキャップ状の弁体で排気筒の開口
部２′に装着しこれを閉じている。４は円弧状枠体で線
膨脹係数の小さな材料からなる部分４′と大きな材料か
らなる部分４″とが一体になっている。この枠体４の一
端は蓋１の突出体５に固定されており、他端は弁体３上
面のほぼ中央部を押さえる構造となっている。６はカバ
ーである。Embodiment An embodiment of the exhaust unit according to the present invention will be described with reference to FIG. Reference numeral 1 is a lid of the battery case, 2 is an exhaust pipe, which is hermetically provided on the lid 1, and is open at 2 '. 3 is an acid resistant and elastic material such as nitrile rubber, isoprene rubber, butyl rubber,
A cap-shaped valve element made of fluororubber or the like is attached to the opening 2'of the exhaust tube and is closed. Reference numeral 4 denotes an arcuate frame body, which is integrated with a portion 4'made of a material having a small linear expansion coefficient and a portion 4 "made of a large material. One end of the frame body 4 is fixed to a projecting body 5 of the lid 1. The other end of the valve body 3 has a structure for pressing the center of the upper surface of the valve body 3. Reference numeral 6 is a cover.
常温においては、弁体３上面が枠体４の一端で押圧され
ているので、弁体３は排気筒２の上端部分に圧接され、
電池内圧がある程度以上になった時に内部のガスを放出
する。At room temperature, since the upper surface of the valve body 3 is pressed by one end of the frame body 4, the valve body 3 is pressed against the upper end portion of the exhaust pipe 2,
Internal gas is released when the internal pressure of the battery exceeds a certain level.
高温になると枠体４は円弧状の内側部分４の方が外側部
分４′よりも膨脹し矢印の方向に曲がるので、弁体３を
押える力が小さくなり、内圧の保持は主として排気筒外
周における弁体自体の弾力性による密着力のみによるも
のとなり、小さな圧力差で弁が作動する。すなわち、低
い圧力で内部のガスを放出する。When the temperature becomes high, the arcuate inner part 4 of the frame 4 expands more than the outer part 4'and bends in the direction of the arrow, so the force pressing the valve body 3 becomes small, and the inner pressure is retained mainly in the outer circumference of the exhaust pipe. Only the adhesion force due to the elasticity of the valve body itself is used, and the valve operates with a small pressure difference. That is, the gas inside is released at a low pressure.
発明の効果 本発明になる弁は温度の高いときに低い圧力で内部のガ
スを放出するので、電池が高温となると電池内外の圧力
差が小さくなる。そこで電槽が高温となって変形しやす
い状態であっても、膨脹、変形を小さくする作用、効果
がある。EFFECTS OF THE INVENTION Since the valve according to the present invention releases the internal gas at a low pressure when the temperature is high, the pressure difference between the inside and the outside of the battery becomes small when the temperature of the battery becomes high. Therefore, even if the battery case is in a high temperature and is easily deformed, there is an action and an effect of reducing expansion and deformation.
したがって、電槽材料として熱可塑性プラスチックを用
いるとともに、電槽肉厚を小さくすることができる。Therefore, it is possible to reduce the thickness of the battery case while using thermoplastic as the battery case material.
第１図は本発明になる密閉形鉛蓄電池の排気部の構造を
示す要部縦断面図である。 １…電槽蓋、２…排気筒、３…弁体、４…円弧状枠体FIG. 1 is a longitudinal sectional view of a main part showing a structure of an exhaust portion of a sealed lead-acid battery according to the present invention. 1 ... Battery case lid, 2 ... Exhaust pipe, 3 ... Valve body, 4 ... Arc frame
Claims (1)
らなるキャップ状の弁体と、温度の変化に応じて変形
し、弁体上面を押圧するための枠体とを有し、該枠体は
弁体上面を押圧するものであり、かつ温度上昇に応じて
弁体への押圧力が軽減する方向に変形するものであっ
て、 高温になるほど低い圧力で動作する弁を有することを特
徴とする、 酸素サイクル反応による密閉形鉛蓄電池。1. A cap-shaped valve body made of an elastic material, which is attached to an opening of an exhaust pipe, and a frame body which is deformed according to a change in temperature and presses an upper surface of the valve body. The frame body presses the upper surface of the valve body, and is deformed in a direction in which the pressing force on the valve body is reduced according to a temperature rise, and has a valve that operates at a lower pressure as the temperature becomes higher. A sealed lead-acid battery with an oxygen cycle reaction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60104594A JPH0612666B2 (en) | 1985-05-15 | 1985-05-15 | Sealed lead acid battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60104594A JPH0612666B2 (en) | 1985-05-15 | 1985-05-15 | Sealed lead acid battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61263042A JPS61263042A (en) | 1986-11-21 |
| JPH0612666B2 true JPH0612666B2 (en) | 1994-02-16 |
Family
ID=14384752
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60104594A Expired - Lifetime JPH0612666B2 (en) | 1985-05-15 | 1985-05-15 | Sealed lead acid battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0612666B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0193051A (en) * | 1987-10-02 | 1989-04-12 | Shin Kobe Electric Mach Co Ltd | Sealed lead-acid battery |
| JPH076621Y2 (en) * | 1989-03-06 | 1995-02-15 | 株式会社ユアサコーポレーション | Sealed storage battery |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59146865U (en) * | 1983-03-19 | 1984-10-01 | 日立マクセル株式会社 | sealed battery |
-
1985
- 1985-05-15 JP JP60104594A patent/JPH0612666B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61263042A (en) | 1986-11-21 |
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