JPH0458466A - Sealed lead-acid battery - Google Patents
Sealed lead-acid batteryInfo
- Publication number
- JPH0458466A JPH0458466A JP2166040A JP16604090A JPH0458466A JP H0458466 A JPH0458466 A JP H0458466A JP 2166040 A JP2166040 A JP 2166040A JP 16604090 A JP16604090 A JP 16604090A JP H0458466 A JPH0458466 A JP H0458466A
- Authority
- JP
- Japan
- Prior art keywords
- explosion
- space
- proof
- battery
- sealed lead
- 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 20
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims abstract description 18
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000008119 colloidal silica Substances 0.000 claims abstract description 7
- 239000000945 filler Substances 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 15
- 238000001816 cooling Methods 0.000 abstract description 8
- 239000000567 combustion gas Substances 0.000 abstract description 5
- 238000004880 explosion Methods 0.000 abstract description 3
- 229910052681 coesite Inorganic materials 0.000 abstract 1
- 229910052906 cristobalite Inorganic materials 0.000 abstract 1
- 239000000377 silicon dioxide Substances 0.000 abstract 1
- 235000012239 silicon dioxide Nutrition 0.000 abstract 1
- 229910052682 stishovite Inorganic materials 0.000 abstract 1
- 229910052905 tridymite Inorganic materials 0.000 abstract 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 6
- 229910001882 dioxygen Inorganic materials 0.000 description 6
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 5
- 238000002485 combustion reaction Methods 0.000 description 5
- 239000001257 hydrogen Substances 0.000 description 5
- 229910052739 hydrogen Inorganic materials 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 239000007789 gas Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000003792 electrolyte Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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
-
- 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
- Secondary Cells (AREA)
Abstract
Description
【発明の詳細な説明】 ［産業上の利用分野］ 本発明は、密閉形鉛蓄電池の改良に関するものである。[Detailed description of the invention] [Industrial application field] The present invention relates to improvements in sealed lead-acid batteries.
［従来の技術］
従来の密閉形鉛蓄電池は、第４図に示すように、正、負
の極板１及び電解液を浸漬させたリテーナ２により構成
された極板群３が蓋４で密閉された電槽５内に収納され
、同極性の極板１はストラップ６でそれぞれ並列接続さ
れ、各ストラップ６には極柱７が立設され、各極柱７は
蓋４を気密に貫通して外部に導出された構造になってい
た。なお、８は蓋４に設けられている安全弁である。こ
のような密閉形鉛蓄電池は、電槽５内で極板群３．スト
ラップ６、極柱７の周囲に空間９が構造上存在する。[Prior Art] As shown in FIG. 4, in a conventional sealed lead-acid battery, a plate group 3 consisting of positive and negative plates 1 and a retainer 2 immersed in electrolyte is sealed with a lid 4. The pole plates 1 of the same polarity are connected in parallel with each other by straps 6, and each strap 6 has a pole pole 7 erected, and each pole pole 7 passes through the lid 4 in an airtight manner. The structure was derived externally. Note that 8 is a safety valve provided on the lid 4. Such a sealed lead-acid battery has a group of electrode plates 3. A space 9 exists structurally around the strap 6 and pole column 7.
このような密閉形鉛蓄電池では、過充電時に水の電気分
解が起り、この際に発生する水素、酸素ガスがこの空間
９に滞溜する。In such a sealed lead-acid battery, electrolysis of water occurs during overcharging, and hydrogen and oxygen gas generated at this time accumulate in this space 9.
［発明が解決しようとする課題］
しかしながら、このように空間９に水素、酸素ガスが滞
溜すると、何等かの理由、例えば静電気等により火花が
生じると、滞溜していた水素、酸素ガスが引火し、爆発
して電池を破損させる可能性がある。[Problems to be Solved by the Invention] However, when hydrogen and oxygen gas accumulate in the space 9 in this way, if a spark is generated due to some reason, such as static electricity, the accumulated hydrogen and oxygen gas May ignite and explode, damaging batteries.
本発明の目的は、爆発を防止できる密閉形鉛蓄電池を提
供することにある。An object of the present invention is to provide a sealed lead-acid battery that can prevent explosion.
［課題を解決するための手段］
上記の目的を達成するための本発明の構成を説明すると
次の通りである。[Means for Solving the Problems] The structure of the present invention for achieving the above object will be explained as follows.
請求項（１）に記載の発明は、密閉された電槽内に極板
群が収納された密閉形鉛蓄電池において、前記電槽内の
空間にその一部を残して防爆用詰物が充填されているこ
とを特徴とする
請求項（２）に記載の発明は、請求項（１）において、
前記防爆用詰物がコロイダルシリカと希硫酸によるゲル
である。The invention according to claim (1) provides a sealed lead-acid battery in which a group of electrode plates is housed in a sealed battery case, in which a part of the space inside the battery case is filled with an explosion-proof filler. The invention according to claim (2) is characterized in that, in claim (1),
The explosion-proof filling is a gel made of colloidal silica and dilute sulfuric acid.
［作用］
密閉形鉛蓄電池の電槽内空間のように密閉された空間で
のガスの燃焼による圧力上昇は、空間周囲の壁での燃焼
ガスの冷却作用に大きく関係する。[Function] The pressure increase due to combustion of gas in a sealed space such as the space inside the container of a sealed lead-acid battery is largely related to the cooling effect of the combustion gas on the walls surrounding the space.
同一の空間形状の場合、空間容積が小さくなる程、容積
に対する空間周囲の壁の面積が増加し、冷却効果が増大
して燃焼時の圧力上昇が抑制される。In the case of the same space shape, as the space volume becomes smaller, the area of the wall around the space increases relative to the volume, the cooling effect increases, and pressure rise during combustion is suppressed.
本発明では、電槽内の空間の容積又は容積に対する壁の
面積の割合を、電槽内空間に防爆用詰物を充填して、あ
る範囲の値に調整することて、冷却効果を増し、電槽内
でガスの燃焼が生じても、その際の圧力上昇を電槽強度
以下に抑制することができる。In the present invention, the volume of the space inside the battery case or the ratio of the area of the wall to the volume is adjusted to a certain range by filling the space inside the battery case with explosion-proof filling, thereby increasing the cooling effect and charging the battery. Even if gas combustion occurs in the tank, the pressure increase at that time can be suppressed to below the strength of the battery tank.
また、請求項（２）のように防爆用詰物としてコロイダ
ルシリカと希硫酸とによるゲルを用いると、該ゲルは多
量の水分を有することから、燃焼ガスに対する冷却効果
が電槽壁に対して犬であり、本発明の防爆効果を更に強
化することができる。Furthermore, when a gel made of colloidal silica and dilute sulfuric acid is used as an explosion-proof filler as claimed in claim (2), since the gel contains a large amount of water, the cooling effect on the combustion gas is less effective against the wall of the container. Therefore, the explosion-proof effect of the present invention can be further strengthened.
Ｅ実施例コ
以下、本発明の実施例を図面を参照して詳細に説明する
。E. Embodiment Embodiments of the present invention will now be described in detail with reference to the drawings.
第１図は、本発明に係る密閉形鉛蓄電池の一実施例を示
したものである。なお、前述した第４図と対応する部分
には、同一符号を付けて示している。FIG. 1 shows an embodiment of a sealed lead acid battery according to the present invention. Note that portions corresponding to those in FIG. 4 described above are indicated with the same reference numerals.
本実施例の密閉形鉛蓄電池では、電槽５内の空間９にそ
の一部を残して防爆用詰物１０が充填されている点に特
徴がある。防爆用詰物１０としては、例えば５ｉｎ２
（濃度１０％）、硫酸（電池の電解液の濃度と同等）と
からなるコロイダルシリカと希硫酸とのゲルを用いる。The sealed lead-acid battery of this embodiment is characterized in that the space 9 in the battery case 5 is filled with an explosion-proof filling 10, leaving a portion of the space 9. As the explosion-proof filling 10, for example, 5in2
A gel of colloidal silica and dilute sulfuric acid (concentration 10%) and sulfuric acid (equivalent to the concentration of battery electrolyte) is used.
第２図は、２０ＯＡｈ形の密閉形鉛蓄電池の空間９に対
する防爆用詰物１０の充填量を変化させて過充電状態で
内部の水素、酸素ガスに火花を与えたときの最大圧力を
測定した結果を示す。即ち、該第２図は電槽内空間９の
容積、該空間９の最短部長さ（蓋４の下面と極板群３の
上面との間の長さ）と、２０ＯＡｈ形密閉形鉛蓄電池の
過充電状態で電槽内空間９の水素、酸素ガスに点火した
際の電槽内の最大圧力との関係を示す。図に示すように
、防爆用詰物１０の充填量を多くするにつれて、即ち電
槽内空間９を小さくするにつれて最大圧力は小さくなり
、電槽内空間９が５００ｃ１１ｉ′以下では電槽５の破
損は生じなかった。しかし、電槽内空間９を更に小さく
し、２００（−１／以下にすると、蓄電池の温度が４０
℃以上に上昇した場合に防爆用詰物１０が安全弁８より
吹き出し、通気部の閉塞等の問題点が認められた。Figure 2 shows the results of measuring the maximum pressure when a spark is given to the hydrogen and oxygen gas inside a 20OAh type sealed lead-acid battery by varying the filling amount of the explosion-proof filler 10 in the space 9 in an overcharged state. shows. That is, FIG. 2 shows the volume of the battery case internal space 9, the shortest length of the space 9 (the length between the bottom surface of the lid 4 and the top surface of the electrode plate group 3), and the 20OAh sealed lead-acid battery. It shows the relationship with the maximum pressure inside the battery case when hydrogen and oxygen gas in the space 9 inside the battery case are ignited in an overcharged state. As shown in the figure, as the amount of explosion-proof filling 10 increases, that is, as the space 9 inside the battery case becomes smaller, the maximum pressure decreases. It did not occur. However, if the space 9 inside the battery case is further reduced to 200 (-1/) or less, the temperature of the storage battery will be 40
When the temperature rises above .degree. C., the explosion-proof filling 10 blows out from the safety valve 8, causing problems such as blockage of the ventilation section.
第３図は、防爆用詰物１０による爆防効果のある範囲と
、防爆用詰物１０を入れ過ぎた場合に該防爆用詰物１０
が熱膨脹により吹き出す範囲とから、防爆用詰物１０の
最適範囲を示す図である。FIG. 3 shows the range in which the explosion-proof filling 10 has an explosion-proof effect and the extent to which the explosion-proof filling 10
It is a figure which shows the optimal range of the explosion-proof filling 10 from the range which blows out by thermal expansion.
なお、本実施例で防爆用詰物１０として用いたコロイダ
ルシリカと希硫酸とによるゲルは、多量の水分を有する
ことから、燃焼ガスに対する冷却効果が電槽壁に対して
犬であり、本発明の防爆効果を更に強化して好適である
。Note that the gel made of colloidal silica and dilute sulfuric acid used as the explosion-proof filling 10 in this example has a large amount of water, so the cooling effect on the combustion gas is weak against the wall of the container. This is preferable because it further enhances the explosion-proof effect.
［発明の効果Ｊ
以上説明したように本発明に係る密閉形鉛蓄電池は、電
槽内空間にその一部を残して防爆用詰物を充填したので
、該電槽内空間が小さくなり、このため空間容積に対す
る空間周囲の壁の面積が増加し、冷却効果が増大して燃
焼時の圧力上昇を抑制することができる。このため、本
発明によれば、電槽内でガスの燃焼が生じても、その際
の圧力上昇を電槽強度以下に抑制でき、電槽の爆発を防
止することかできる。[Effects of the Invention J As explained above, in the sealed lead-acid battery according to the present invention, the explosion-proof filling is filled leaving a part of the space inside the battery case, so the space inside the battery case becomes smaller. The area of the wall around the space increases relative to the space volume, the cooling effect increases, and pressure rise during combustion can be suppressed. Therefore, according to the present invention, even if gas combustion occurs within the battery case, the pressure increase at that time can be suppressed to below the strength of the battery case, and explosion of the battery case can be prevented.
特に、請求項（２）のように防爆用詰物としてコロイダ
ルシリカと希硫酸とによるゲルを用いると、該ゲルは多
量の水分を有することから、燃焼ガスに対する冷却効果
か電槽壁に対して大であり、本発明の防爆効果を更に強
化することができる。In particular, when a gel made of colloidal silica and dilute sulfuric acid is used as an explosion-proof filler as claimed in claim (2), since the gel contains a large amount of water, the cooling effect on the combustion gas may be large. Therefore, the explosion-proof effect of the present invention can be further strengthened.
第１図は本発明に係る密閉形鉛蓄電池の一実施例の縦断
面図、第２図は密閉形鉛蓄電池の空間に対する防爆用詰
物の充電量を変化させて過充電状態で内部の水素、酸素
ガスに火花を与えたときの最大圧力の関係を示す線図、
第３図は防爆用詰物による爆発防止効果のある範囲と、
防爆用詰物を入れ過ぎた場合に該防爆用詰物が熱膨張に
よる吹き出す範囲と、防爆用詰物の最適範囲の関係を示
す説明図、第４図は従来の密閉形鉛蓄電池の縦断面図で
ある。
１・・・極板、２・・・リテーナ、３・・・極板群、４
・・・蓋、５・・・電槽、６・・・ストラップ、７・・
・極柱、８・・・安全弁、９・・・電槽内空間、１０・
・・防爆用詰物。FIG. 1 is a vertical cross-sectional view of an embodiment of a sealed lead-acid battery according to the present invention, and FIG. 2 is a longitudinal cross-sectional view of an embodiment of a sealed lead-acid battery according to the present invention. Diagram showing the relationship between maximum pressure when sparking oxygen gas,
Figure 3 shows the range where explosion-proof filling has an explosion-preventing effect, and
An explanatory diagram showing the relationship between the range in which the explosion-proof filling blows out due to thermal expansion when too much explosion-proof filling is put in, and the optimal range of the explosion-proof filling. FIG. 4 is a longitudinal cross-sectional view of a conventional sealed lead-acid battery. . 1... Electrode plate, 2... Retainer, 3... Electrode plate group, 4
... Lid, 5... Battery case, 6... Strap, 7...
・Pole pole, 8... Safety valve, 9... Space inside the battery case, 10.
・Explosion-proof filling.
Claims (2)
蓄電池において、前記電槽内の空間にその一部を残して
防爆用詰物が充填されていることを特徴とする密閉形鉛
蓄電池。(1) A sealed lead-acid battery in which a group of electrode plates is housed in a sealed battery case, characterized in that a part of the space inside the battery case is filled with an explosion-proof filler. lead-acid battery.
るゲルである請求項（１）に記載の密閉形鉛蓄電池。(2) The sealed lead-acid battery according to claim 1, wherein the explosion-proof filling is a gel made of colloidal silica and dilute sulfuric acid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2166040A JPH0458466A (en) | 1990-06-25 | 1990-06-25 | Sealed lead-acid battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2166040A JPH0458466A (en) | 1990-06-25 | 1990-06-25 | Sealed lead-acid battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0458466A true JPH0458466A (en) | 1992-02-25 |
Family
ID=15823838
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2166040A Pending JPH0458466A (en) | 1990-06-25 | 1990-06-25 | Sealed lead-acid battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0458466A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0608590A1 (en) * | 1992-12-03 | 1994-08-03 | Globe-Union Inc. | Lead-acid battery of the absorptive mat type with improved heat transfer |
| WO2003079481A1 (en) * | 2002-03-05 | 2003-09-25 | Knauer Davis J | Battery with gel blanket |
| US7682738B2 (en) | 2002-02-07 | 2010-03-23 | Kvg Technologies, Inc. | Lead acid battery with gelled electrolyte formed by filtration action of absorbent separators and method for producing it |
-
1990
- 1990-06-25 JP JP2166040A patent/JPH0458466A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0608590A1 (en) * | 1992-12-03 | 1994-08-03 | Globe-Union Inc. | Lead-acid battery of the absorptive mat type with improved heat transfer |
| US7682738B2 (en) | 2002-02-07 | 2010-03-23 | Kvg Technologies, Inc. | Lead acid battery with gelled electrolyte formed by filtration action of absorbent separators and method for producing it |
| WO2003079481A1 (en) * | 2002-03-05 | 2003-09-25 | Knauer Davis J | Battery with gel blanket |
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