JP2001126752A - Paste-type sealed lead-acid battery and manufacturing method therefor - Google Patents
Paste-type sealed lead-acid battery and manufacturing method thereforInfo
- Publication number
- JP2001126752A JP2001126752A JP30022499A JP30022499A JP2001126752A JP 2001126752 A JP2001126752 A JP 2001126752A JP 30022499 A JP30022499 A JP 30022499A JP 30022499 A JP30022499 A JP 30022499A JP 2001126752 A JP2001126752 A JP 2001126752A
- Authority
- JP
- Japan
- Prior art keywords
- paste
- electrolyte
- sealed lead
- battery
- 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.)
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Classifications
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- 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
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- Secondary Cells (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、ペースト式密閉形
鉛蓄電池およびその製造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pasted sealed lead-acid battery and a method of manufacturing the same.
【０００２】[0002]
【従来の技術】密閉形鉛電池は、メンテナンス不要の利
点から、各種用途に使用されているが、近年は装置の小
型化や、出力の低下などにより、電池も小型化し、また
設置環境も場所も選べず、電源の周辺や、さらには海外
など、高温、低湿度の環境下で使用されることが多くな
っていた。2. Description of the Related Art Sealed lead batteries are used for various purposes because of the advantage of requiring no maintenance. In recent years, batteries have been reduced in size due to downsizing of devices and reduction in output, and the installation environment has been limited. They cannot be selected, and are often used in high-temperature, low-humidity environments, such as around power supplies and overseas.
【０００３】一般に、正極板、負極板にペースト式極板
を使用した電池は、正極活物質、負極活物質、セパレー
タに電解液を保持させ、その安全性の観点から流動液が
残らないような、つまり、電池がどのような方向で使用
されても、電解液が流れ出さないような電解液量を維持
させている。In general, a battery using a paste-type electrode plate as a positive electrode plate and a negative electrode plate has a positive electrode active material, a negative electrode active material, and an electrolyte held by a separator. That is, the amount of the electrolytic solution is maintained such that the electrolytic solution does not flow out regardless of the direction in which the battery is used.
【０００４】この電解液には希硫酸や、成層化防止など
を目的としたゲル状のものなどを用いたりしている（特
願昭６０−１７６０２７）。As the electrolytic solution, dilute sulfuric acid or a gel-like one for the purpose of preventing stratification or the like is used (Japanese Patent Application No. 60-176027).
【０００５】[0005]
【発明が解決しようとする課題】一般的に、電池内から
の水蒸気透過量は、電槽の厚さに反比例し、電池内外の
水蒸気分圧差に比例する。上記のような電池の小型化は
電槽壁の薄型化を余儀なくし、さらに高温、低湿度環境
化での使用もあいまって、電池内外水蒸気分圧差を増加
させていた。Generally, the amount of water vapor permeated from the inside of the battery is inversely proportional to the thickness of the battery case, and is proportional to the difference in partial pressure of water vapor inside and outside the battery. The miniaturization of the battery as described above has necessitated a reduction in the thickness of the battery case wall, and the use of the battery in a high-temperature, low-humidity environment has increased the difference in the partial pressure of water vapor inside and outside the battery.
【０００６】つまり、電池内部から電槽壁を通して、水
蒸気が透過し、密閉形鉛蓄電池の重大な寿命劣化原因の
一つであるドライアウトを加速させていた。That is, water vapor permeates from the inside of the battery through the battery case wall, and accelerates dryout, which is one of the serious causes of the life degradation of the sealed lead-acid battery.
【０００７】さらに、密閉形鉛蓄電池のどのような方向
で使用されても電解液が流れ出さないというこの特徴
は、密閉形の長所でありながら、作用物質の一つである
電解液量を制限することとなり、ドライアウトに対して
は非常に短所であった。[0007] Furthermore, this feature that the electrolyte does not flow out in any direction of the sealed lead-acid battery does not limit the amount of the electrolyte, which is one of the active substances, while being an advantage of the sealed type. This was a very disadvantage for dryout.
【０００８】そこで、本発明の課題は、ドライアウトを
抑制し、高率放電性能を維持しつつ寿命性能を向上させ
ることを目的としたペースト式密閉形鉛蓄電池を提供す
ることにある。Accordingly, an object of the present invention is to provide a paste-type sealed lead-acid battery for suppressing dryout and improving the life performance while maintaining high-rate discharge performance.
【０００９】[0009]
【課題を解決するための手段】前記課題を解決する、本
発明のペースト式密閉形鉛蓄電池は、ペースト式正負極
板および電解液を保持したセパレータを電槽内部に有す
る密閉形鉛蓄電池において、電槽とセパレータと極板と
の間隙部分の少なくとも一部にゲル状電解質が充填され
てなることを特徴とする。Means for Solving the Problems To solve the above problems, a sealed lead-acid battery of the present invention is a sealed lead-acid battery having a paste-type positive / negative electrode plate and a separator holding an electrolytic solution inside a battery case. At least a part of the gap between the battery case, the separator, and the electrode plate is filled with a gel electrolyte.
【００１０】ドライアウトを抑制し、寿命性能を大きく
向上させることができる。[0010] Dryout can be suppressed, and the life performance can be greatly improved.
【００１１】前記ゲル状電解質は、ＳｉＯ2を含有する
かＡｌ2Ｏ3を含有するかあるいはその両方を含有するも
のが好ましい。The gel electrolyte preferably contains SiO 2 , Al 2 O 3 , or both.
【００１２】前記セパレータはガラス繊維セパレータが
好ましい。The separator is preferably a glass fiber separator.
【００１３】前記課題を解決する、本発明のペースト式
密閉形鉛蓄電池の製造方法は、電解液を注液して該電解
液を前記ガラス繊維のセパレータに保持させ、充電した
後、前記間隙部分にゾル状電解質を注入して、該ゾル状
電解質をゲル化させてゲル状電解質とすることを特徴と
する。[0013] In order to solve the above-mentioned problems, a method of manufacturing a pasted sealed lead-acid battery according to the present invention is characterized in that an electrolytic solution is injected, the electrolytic solution is held on the glass fiber separator, and after charging, the gap portion is formed. A sol-like electrolyte is injected into the mixture, and the sol-like electrolyte is gelled to form a gel-like electrolyte.
【００１４】初充電後に流動性のあるゾル状電解質を注
入することにより電槽内の間隙部分に容易にゲル状電解
質を配置することができる。また、初充電後に上記のゲ
ル状電解質を配置することにより、初充電時のガス発生
によるゲルの電池外への飛散を回避することができる。By injecting a fluid sol electrolyte after the initial charge, the gel electrolyte can be easily arranged in the gap in the battery case. Further, by disposing the gel electrolyte after the initial charge, it is possible to prevent the gel from scattering out of the battery due to gas generation during the initial charge.
【００１５】[0015]
【発明の実施の形態】以下、本発明の実施の形態を説明
する。Embodiments of the present invention will be described below.
【００１６】ペースト式密閉形鉛蓄電池は、正極、負極
ともにペースト式極板を用いた鉛蓄電池である。[0016] The paste-type sealed lead-acid battery is a lead-acid battery using a paste-type electrode plate for both the positive electrode and the negative electrode.
【００１７】ペースト式極板は、調整したペーストを格
子や鉛板などに充填したものであって、調整方法やペー
ストの組成、充填方法などは特に限定されるものではな
い。The paste-type electrode plate is prepared by filling the prepared paste into a grid or a lead plate, and the method of preparation, the composition of the paste, the filling method, and the like are not particularly limited.
【００１８】セパレータは、特に限定されるものではな
いが、電解液を保持できるものであればよく、好ましく
はガラス繊維セパレータであり、吸水性に優れたシート
状多孔性セパレータがより好ましい。さらに好ましく
は、溶融したガラスを吹き飛ばして製造した、平均直径
１μｍ以下の微細ガラス短繊維を抄紙法でマット状にし
たものなどである。必要に応じて、少量の直径１μｍ以
上の太いガラス繊維、プラスチック繊維、接合剤、シリ
カ微粉末を添加することができる。この場合、セパレー
タとしての機能のほかに電解液の保持や酸素ガスの透過
などの機能を備えていることが好ましい。The separator is not particularly limited, but may be any as long as it can hold an electrolytic solution, and is preferably a glass fiber separator, and more preferably a sheet-like porous separator having excellent water absorption. More preferably, it is obtained by blowing fine glass short fibers having an average diameter of 1 μm or less into a mat by a papermaking method, which is produced by blowing molten glass. If necessary, small amounts of thick glass fibers having a diameter of 1 μm or more, plastic fibers, a bonding agent, and fine silica powder can be added. In this case, in addition to the function as a separator, it is preferable to have a function of retaining an electrolytic solution and transmitting oxygen gas.
【００１９】間隙部分に配置するゲル状電解質は、鉛蓄
電池の電解液である硫酸を有するものであれば特に限定
するものではないが、無機酸化物と希硫酸とを混合した
ものなどを用いることができる。無機酸化物としては、
ＳｉＯ2やＡｌ2Ｏ3などが好ましい。ゲル電解質の密度
や無機酸化物の濃度など、電池の使用温度や電気化学的
特性に応じて適宜選択すれば良い。The gel electrolyte disposed in the gap is not particularly limited as long as it has sulfuric acid which is an electrolyte of a lead storage battery, but a mixture of an inorganic oxide and dilute sulfuric acid may be used. Can be. As the inorganic oxide,
SiO 2 and Al 2 O 3 are preferred. The density of the gel electrolyte, the concentration of the inorganic oxide, and the like may be appropriately selected depending on the operating temperature and electrochemical characteristics of the battery.
【００２０】またゲル状電解質中の硫酸濃度は、電解液
中の硫酸濃度と等しくすることが好ましい。濃度勾配が
小さくなるからである。The concentration of sulfuric acid in the gel electrolyte is preferably equal to the concentration of sulfuric acid in the electrolyte. This is because the concentration gradient becomes smaller.
【００２１】上記ゲル状電解質を電槽とセパレータと極
板との間隙部分の少なくとも一部に配置する。The gel electrolyte is disposed at least in a part of a gap between the battery case, the separator and the electrode plate.
【００２２】好ましくは、ゲル状電解質を前記間隙部分
の全体に配置する。ドライアウトの抑制をより十分なも
のとすることができるからである。Preferably, a gel electrolyte is disposed over the entire gap. This is because dryout can be more sufficiently suppressed.
【００２３】ゲル状電解質の配置は、特に限定するもの
ではないが、電池を横置きにしても形状を保つようにす
ることが好ましい。また、電池を横置きしたり、振動し
ても形状を保てるよう、ゲル電解質を調整することが好
ましい。Although the arrangement of the gel electrolyte is not particularly limited, it is preferable that the shape be maintained even when the battery is placed horizontally. Further, it is preferable to adjust the gel electrolyte so that the shape can be maintained even if the battery is placed horizontally or vibrated.
【００２４】上述ゲル状電解質の前記間隙部分への充填
を、初充電後にゾル状の無機酸化物含有希硫酸を注入
し、ゲル化させることにより行い、上記ペースト式密閉
形鉛蓄電池を製造する。ゲル状電解質の配置が容易であ
り、また初充電後に配置することにより、初充電時のガ
ス発生によりゲルが電池外へ飛び出すことを回避するこ
とができるからである。The above-mentioned gel electrolyte is filled in the gap portion by injecting a sol-form diluted sulfuric acid containing an inorganic oxide after the initial charge and gelling, thereby producing the paste-type sealed lead-acid battery. This is because the arrangement of the gel electrolyte is easy, and by arranging the electrolyte after the initial charge, it is possible to prevent the gel from jumping out of the battery due to gas generation during the initial charge.
【００２５】ゾル状電解質は、電池内部で容易にゲル化
するものであればよく、例えば、無機酸化物含有ゾル状
希硫酸を用いることができる。好ましくは、前記無機酸
化物がシリカ（ＳｉＯ2）あるいはアルミナ（Ａｌ
2Ｏ3）であるか、もしくはその両方である。さらに好ま
しくは、６重量％以上の前記無機酸化物を含有したもの
である。The sol electrolyte may be any one that easily gels inside the battery. For example, sol diluted sulfuric acid containing an inorganic oxide can be used. Preferably, the inorganic oxide is silica (SiO 2 ) or alumina (Al
2 O 3 ) or both. More preferably, it contains 6% by weight or more of the inorganic oxide.
【００２６】[0026]
【実施例】以下に、本発明の実施例を、比較例とあわせ
て説明する。EXAMPLES Examples of the present invention will be described below together with comparative examples.
【００２７】電池は容量約４０Ａｈで、ペースト式正極
板３枚とペースト式負極板４枚とで構成し、セパレータ
は微細ガラス繊維からなる吸水性に優れたシート状の多
孔性セパレータを使用した。そして、従来どおりペース
ト式の密閉形鉛蓄電池を製作し、初充電まで完了させ
た。該電池を電池Ａとした。The battery had a capacity of about 40 Ah, and was composed of three paste-type positive electrode plates and four paste-type negative electrode plates. The separator used was a sheet-like porous separator made of fine glass fibers and excellent in water absorption. Then, a sealed lead-acid battery of the paste type was manufactured as before, and completed up to the first charge. The battery was designated as battery A.
【００２８】上記電池Ａの電解液がすべて、極板の活物
質およびセパレータに吸収された後（本実施例では２４
時間経過後）、比重１．２６０の硫酸にＳｉＯ2を６重
量％含ませたゾル状電解質を保持液量（電池Ａ中の電解
液量）に対して１０重量％の量を注液した。これを電池
Ｂとした。After all of the electrolyte of the battery A is absorbed by the active material of the electrode plate and the separator (in this embodiment, 24
After a lapse of time), a 10% by weight of a sol electrolyte obtained by adding 6% by weight of SiO 2 to sulfuric acid having a specific gravity of 1.260 was injected with respect to the amount of the retained solution (the amount of the electrolyte in the battery A). This was designated as Battery B.
【００２９】また、電解液にもＳｉＯ2を６重量％添加
させたこと以外は電池Ｂと同じ電池を製作し、これを電
池Ｃとした。A battery C was manufactured in the same manner as the battery B except that 6% by weight of SiO 2 was added to the electrolyte.
【００３０】前記電池の初期容量試験を行い、その後、
高温トリクル加速試験、６０℃、５％ＲＨ気相中で２．
２７５Ｖ／セルにてトリクル充電し、２ヶ月毎に５時間
率、３０分間率の容量試験を行った。初期容量結果を表
１に、寿命試験結果を図１にそれぞれ示す。An initial capacity test of the battery was performed.
1. High temperature trickle acceleration test, 60 ° C., 5% RH gas phase
Trickle charging was performed at 275 V / cell, and a capacity test was performed every two months at a rate of 5 hours and a rate of 30 minutes. Table 1 shows the results of the initial capacity, and FIG. 1 shows the results of the life test.
【００３１】[0031]
【表１】 [Table 1]
【００３２】初期容量は、２０時間率では顕著な差異は
確認できなかったが、３０分間率では、電解液をすべて
ゲル状とした電池Ｃが最も低い容量であり、残り２つの
電池は同レベルであった。これは、ゲル状電解液のイオ
ン伝導度が低いために、容量が低下したと考えられる。
一方、極板間にゲル状電解液を含んでいない電池Ａ、電
池Ｂは、ともに電池Ｃよりも高い初期容量を示した。No significant difference was found in the initial capacity at the 20-hour rate, but at the 30-minute rate, the battery C in which all the electrolytes were in a gel state had the lowest capacity, and the remaining two batteries had the same level. Met. This is thought to be because the capacity was reduced because the ionic conductivity of the gel electrolyte was low.
On the other hand, the batteries A and B, which did not contain the gel electrolyte between the electrode plates, both exhibited higher initial capacities than the battery C.
【００３３】寿命試験では、図１に示したように、３０
分間率、５時間率ともに電池Ｂが最も寿命性能が良いこ
とがわかった。特に、３０分間率では従来型の電池Ａ、
Ｃは６から７ヶ月目で初期の５０％以下に容量が低下し
た。一方電池Ｂは良好な寿命性能が得られた。これは、
電池全体としての減液量は制限されているが、ゲル状と
して余分に補液している量が全体の液量を増加させるこ
とができたためであると考えられる。In the life test, as shown in FIG.
It was found that the battery B had the best life performance at both the minute rate and the 5-hour rate. In particular, at the 30 minute rate, the conventional battery A,
The capacity of C decreased to 50% or less of the initial value in 6 to 7 months. On the other hand, the battery B had good life performance. this is,
It is considered that the amount of liquid reduction for the whole battery is limited, but the amount of extra fluid replacement in the form of gel was able to increase the total amount of liquid.
【００３４】[0034]
【発明の効果】本発明にかかるペースト式密閉形鉛蓄電
池は、高率放電性能を損なうことなく、寿命性能を著し
く高めることができる。The paste-type sealed lead-acid battery according to the present invention can significantly improve the life performance without impairing the high-rate discharge performance.
【図１】電池の寿命試験結果を示す図。FIG. 1 is a diagram showing a life test result of a battery.
Claims (5)
たセパレータを電槽内部に有する密閉形鉛蓄電池におい
て、電槽とセパレータと極板との間隙部分の少なくとも
一部にゲル状電解質が充填されてなることを特徴とする
ペースト式密閉形鉛蓄電池。In a sealed lead-acid battery having a paste type positive / negative electrode plate and a separator holding an electrolytic solution inside a battery case, at least a part of a gap between the battery case, the separator and the electrode plate is filled with a gel electrolyte. A paste-type sealed lead-acid battery characterized by being manufactured.
とを特徴とする請求項１に記載のペースト式密閉形鉛蓄
電池。2. The paste-type sealed lead-acid battery according to claim 1, wherein said gel electrolyte contains SiO 2 .
とを特徴とする請求項１または２に記載のペースト式密
閉形鉛蓄電池。3. The sealed lead-acid battery according to claim 1, wherein the gel electrolyte contains Al 2 O 3 .
あることを特徴とする請求項１から３に記載のペースト
式密閉形鉛蓄電池。4. The paste-type sealed lead-acid battery according to claim 1, wherein the separator is a glass fiber separator.
であって、電解液を注液して該電解液を前記ガラス繊維
のセパレータに保持させ、充電した後、前記間隙部分に
ゾル状電解質を注入して、該ゾル状電解質をゲル化させ
てゲル状電解質とすることを特徴とする請求項１から４
に記載のペースト式密閉形鉛蓄電池の製造方法。5. The method for producing a paste-type sealed lead-acid battery according to claim 1, wherein an electrolyte is injected, the electrolyte is held on the glass fiber separator, and after charging, the sol electrolyte is added to the gap. 5. The sol-like electrolyte is gelled by injecting the sol-like electrolyte into a gel-like electrolyte.
3. The method for producing a paste-type sealed lead-acid battery according to item 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30022499A JP2001126752A (en) | 1999-10-21 | 1999-10-21 | Paste-type sealed lead-acid battery and manufacturing method therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30022499A JP2001126752A (en) | 1999-10-21 | 1999-10-21 | Paste-type sealed lead-acid battery and manufacturing method therefor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2001126752A true JP2001126752A (en) | 2001-05-11 |
Family
ID=17882222
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP30022499A Pending JP2001126752A (en) | 1999-10-21 | 1999-10-21 | Paste-type sealed lead-acid battery and manufacturing method therefor |
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| Country | Link |
|---|---|
| JP (1) | JP2001126752A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100397069B1 (en) * | 2001-11-26 | 2003-09-06 | 한국타이어 주식회사 | Electrolyte composition for a lead storage battery and lead storage battery comprising it |
| CN115692871A (en) * | 2022-10-27 | 2023-02-03 | 安徽艾克瑞德科技有限公司 | Lead-carbon battery structure convenient for filling colloidal electrolyte |
| US11688859B2 (en) | 2018-03-20 | 2023-06-27 | Betolar Oy | Voltage source with an electrolyte containing ash, and method for manufacturing the voltage source |
-
1999
- 1999-10-21 JP JP30022499A patent/JP2001126752A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100397069B1 (en) * | 2001-11-26 | 2003-09-06 | 한국타이어 주식회사 | Electrolyte composition for a lead storage battery and lead storage battery comprising it |
| US11688859B2 (en) | 2018-03-20 | 2023-06-27 | Betolar Oy | Voltage source with an electrolyte containing ash, and method for manufacturing the voltage source |
| CN115692871A (en) * | 2022-10-27 | 2023-02-03 | 安徽艾克瑞德科技有限公司 | Lead-carbon battery structure convenient for filling colloidal electrolyte |
| CN115692871B (en) * | 2022-10-27 | 2023-06-13 | 安徽艾克瑞德科技有限公司 | Lead-carbon battery structure convenient for filling colloid electrolyte |
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