JPH0714603A - Clad type sealed lead-acid battery - Google Patents
Clad type sealed lead-acid batteryInfo
- Publication number
- JPH0714603A JPH0714603A JP5179894A JP17989493A JPH0714603A JP H0714603 A JPH0714603 A JP H0714603A JP 5179894 A JP5179894 A JP 5179894A JP 17989493 A JP17989493 A JP 17989493A JP H0714603 A JPH0714603 A JP H0714603A
- Authority
- JP
- Japan
- Prior art keywords
- separator
- electrode plate
- acid battery
- sealed lead
- negative electrode
- 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
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
Landscapes
- Cell Separators (AREA)
- Secondary Cells (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明はクラッド式正極板を用い
た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 using a clad type positive electrode plate.
【０００２】[0002]
【従来の技術】一般に正極板にクラッド式極板を用いた
鉛蓄電池は正極活物質がチューブ内に充填されているた
め、充放電を繰り返しても活物質の脱落がなく、ペース
ト式正極板を用いた鉛蓄電池に比べて長寿命であること
が知られている。従来、鉛蓄電池を密閉化する場合、正
・負極板の間に微細なガラスマットを配置して、このガ
ラスマットに電解液を保持させるリテーナ方式やＳｉＯ
2 等の無機酸化物を添加したゾル状の希硫酸を注液して
電池内でゲル化させ、電解液の非流動化をはかるゲル電
解液方式が採用されているが、クラッド式正極板を使用
した鉛蓄電池を密閉化する場合は、リテーナ方式では正
極板とガラスマットとの接触が悪いため、ゲル電解液方
式が一般に採用されている。2. Description of the Related Art Generally, a lead-acid battery using a clad type electrode plate as a positive electrode plate has a positive electrode active material filled in a tube, so that the active material does not fall off even if charging and discharging are repeated. It is known that it has a longer life than the lead acid battery used. Conventionally, when a lead storage battery is hermetically sealed, a fine glass mat is placed between the positive and negative electrode plates, and a retainer system or SiO that holds the electrolytic solution in the glass mat is used.
A gel electrolyte solution system is adopted in which sol-like dilute sulfuric acid added with an inorganic oxide such as 2 is poured and gelled in the battery to make the electrolyte non-fluidized. When the used lead-acid battery is to be hermetically sealed, a gel electrolyte solution method is generally adopted because the retainer method makes poor contact between the positive electrode plate and the glass mat.
【０００３】[0003]
【発明が解決しようとする課題】密閉形鉛蓄電池におい
ては、充電末期に正極板から発生する酸素ガスを負極板
に吸収させることにより、水分解による電解液中の水分
減少を防いでいる。リテーナ方式ではガラスマット中に
適度なポアが存在し、正極板から発生したガスはこのポ
アを通って負極板表面へ移動し、負極活物質に吸収され
る。これに対して、ゲル電解液を使用した場合は、ゲル
中のクラックおよびセパレータのポアがガスの通過経路
になる。しかし、初期の段階ではセパレータのポアは電
解液で満たされており、ガスはセパレータに沿って上部
へ抜けやすく、負極板のガス吸収効率はリテーナ方式に
比べて劣る。この結果、ゲル電解液方式のクラッド式密
閉形鉛蓄電池においては電解液の減少が多くなり、減液
により容量低下が生じて長寿命であるクラッド式極板の
特長を十分に生かすことが困難であった。In the sealed lead-acid battery, the oxygen gas generated from the positive electrode plate at the end of charging is absorbed by the negative electrode plate to prevent the decrease in water content in the electrolytic solution due to water decomposition. In the retainer method, appropriate pores exist in the glass mat, and the gas generated from the positive electrode plate moves to the surface of the negative electrode plate through the pores and is absorbed by the negative electrode active material. On the other hand, when the gel electrolyte is used, cracks in the gel and pores of the separator serve as gas passage paths. However, in the initial stage, the pores of the separator are filled with the electrolytic solution, the gas easily escapes to the upper portion along the separator, and the gas absorption efficiency of the negative electrode plate is inferior to that of the retainer method. As a result, in the gel-electrolyte-type clad closed-type lead-acid battery, the amount of electrolyte decreases a lot, and it is difficult to take full advantage of the features of the clad-type electrode plate, which has a long service life due to a decrease in capacity due to liquid reduction. there were.
【０００４】本発明は上記問題点に鑑みてなされたもの
であって、その目的とするところは、電解液の減少を防
止し、長寿命のクラッド式密閉形鉛蓄電池を提供するこ
とにある。The present invention has been made in view of the above problems, and an object of the present invention is to provide a clad-type sealed lead-acid battery that prevents a decrease in electrolyte and has a long life.
【０００５】[0005]
【課題を解決するための手段】上記目的を達成するため
に、本発明は、ゲル電解液５を用いたクラッド式密閉形
鉛蓄電池において、繊維径が０．４〜０．９μｍのガラ
ス繊維からなるセパレータＡ（３）と繊維径１０〜３０
μｍのガラス繊維からなるセパレータＢ（４）の２層の
セパレータをセパレータＢ（４）が負極板２表面に当接
するように正極板１と負極板２の間に配置したことを特
徴とするものである。In order to achieve the above-mentioned object, the present invention provides a clad-type sealed lead-acid battery using a gel electrolyte solution 5, which comprises a glass fiber having a fiber diameter of 0.4 to 0.9 μm. Separator A (3) and fiber diameter 10-30
A two-layer separator B (4) made of a glass fiber having a thickness of μm is arranged between the positive electrode plate 1 and the negative electrode plate 2 so that the separator B (4) contacts the surface of the negative electrode plate 2. Is.
【０００６】[0006]
【作 用】セパレータＡ（３）はリテーナ方式で用いら
れる微細なガラスマットと同様のガラスマットであり、
ポアは小さくゲル電解液５中のＳｉＯ2 粉末はポア内に
入らないためゲル化せずに、正極板１から発生するガス
の通過を容易にするとともに電解液保持材および短絡を
防止する隔離体としての作用を有する。また、正極板１
のチューブとセパレータＡ（３）との隙間にはゲル電解
液５が存在するため正極板１とセパレータ間の接触抵抗
は小さい。一方、セパレータＢ（４）は粗いガラスマッ
トであるためゲル電解液５中のＳｉＯ2 粉末はガラスマ
ット中に入りゲル化するが、ガラス繊維がゲル電解液５
のクラックの核となり、小さなクラックを生じせしめ正
極板１から発生するガスが負極板２へ移動しやすくな
る。この結果、負極板２のガス吸収効率が向上して減液
が抑制される。[Operation] Separator A (3) is a glass mat similar to the fine glass mat used in the retainer system,
Since the pores are small and the SiO 2 powder in the gel electrolyte solution 5 does not enter the pores, it does not gel and facilitates passage of the gas generated from the positive electrode plate 1 and an electrolyte holding material and a separator that prevents a short circuit. Has the function of. In addition, the positive electrode plate 1
Since the gel electrolyte solution 5 exists in the gap between the tube and the separator A (3), the contact resistance between the positive electrode plate 1 and the separator is small. On the other hand, since the separator B (4) is a coarse glass mat, the SiO 2 powder in the gel electrolyte solution 5 enters the glass mat and gels, but the glass fiber is not the gel electrolyte solution 5.
The gas generated from the positive electrode plate 1 easily becomes a core of the crack and causes a small crack to easily move to the negative electrode plate 2. As a result, the gas absorption efficiency of the negative electrode plate 2 is improved and liquid reduction is suppressed.
【０００７】[0007]
【実施例】本発明の実施例を図面に基づいて説明する。
図１は本発明の一実施例を示す横断面図であり、１はク
ラッド式正極板、２はペースト式負極板、３は繊維径が
０．４〜０．９μｍのガラス繊維からなるセパレータ
Ａ、４は繊維径が１０〜３０μｍのガラス繊維からなる
セパレータＢ、５はゲル電解液、６は電槽である。Embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a cross-sectional view showing an embodiment of the present invention. 1 is a clad type positive electrode plate, 2 is a paste type negative electrode plate, and 3 is a separator A made of glass fiber having a fiber diameter of 0.4 to 0.9 μm. 4 is a separator B made of glass fiber having a fiber diameter of 10 to 30 μm, 5 is a gel electrolyte, and 6 is a battery case.
【０００８】図１のように幅１４７ｍｍ、高さ２００ｍ
ｍ、チューブ径９ｍｍのクラッド式正極板３枚と、幅１
４７ｍｍ、高さ２００ｍｍ、厚さ４ｍｍのペースト式負
極板４枚と、セパレータＡ（３）とセパレータＢ（４）
の２層のセパレータをセパレータＢ（４）が負極板２表
面に当接するように正極板１と負極板２の間に配置して
極板群を組み立て、電槽６に挿入後電解液を注入して１
００Ａｈの密閉形鉛蓄電池を製作した。なお、正極板１
の心金１ａおよび負極板の格子体にはＰｂ−Ｃａ−Ｓｎ
合金を使用し、電解液５には一次粒子径が約１２ｎｍの
ＳｉＯ2 微粉末を添加した比重１．２６のゾル状電解液
を使用し、ゲル化させた。また、比較のために微孔を有
する合成樹脂セパレータを使用した従来の密閉形鉛蓄電
池も同時に製作した。これらの鉛蓄電池を５Ａの電流で
２０００時間過充電して、この時の減液量を調べるとと
もに、過充電前後に５時間率の電流で容量試験を行い容
量の変化を調べた。表１にこの結果を示す。なお、減液
量および容量は初期に対するパーセントで示した。Width 147 mm and height 200 m as shown in FIG.
m, 3 clad-type positive electrode plates with a tube diameter of 9 mm, and a width of 1
47 mm, height 200 mm, thickness 4 mm, paste type negative electrode plate 4, separator A (3) and separator B (4)
The two-layer separator is placed between the positive electrode plate 1 and the negative electrode plate 2 so that the separator B (4) is in contact with the surface of the negative electrode plate 2, and the electrode plate group is assembled. Then 1
A sealed lead acid battery of 00Ah was manufactured. The positive plate 1
Pb-Ca-Sn is contained in the lattice of the core metal 1a and the negative electrode plate of
An alloy was used, and as the electrolytic solution 5, a sol-like electrolytic solution having a specific gravity of 1.26 to which SiO 2 fine powder having a primary particle diameter of about 12 nm was added was used for gelation. For comparison, a conventional sealed lead-acid battery using a synthetic resin separator having micropores was also manufactured at the same time. These lead acid batteries were overcharged at a current of 5 A for 2000 hours, and the amount of liquid reduction at this time was examined, and a capacity test was conducted at a 5 hour rate current before and after overcharging to examine the change in capacity. Table 1 shows this result. The liquid reduction amount and the volume are shown as a percentage of the initial amount.
【０００９】[0009]
【表１】 [Table 1]
【００１０】表１から明らかなように、本発明による２
層構造のセパレータを使用すると、過充電における減液
量が少なくなり、容量低下も少なく長寿命となることが
わかる。本発明ではセパレータＢ（４）が負極板２に当
接するように配置しているが、セパレータＡ（３）のみ
を使用した場合や、セパレータＡ（３）を負極板２側に
配置した場合は、電解液の減少に伴って内部抵抗の増加
が見られ、容量の低下率が大きかった。これは負極板２
のポア内に存在している電解液が減少した場合、セパレ
ータＡ（３）のポアに存在する電解液が負極板２に吸収
され、この結果セパレータＡ（３）が枯渇状態になり内
部抵抗が増加したものと思われる。As can be seen from Table 1, 2 according to the invention
It can be seen that when a layered separator is used, the amount of liquid reduction due to overcharge is reduced, the capacity is less reduced, and the life is long. In the present invention, the separator B (4) is arranged so as to be in contact with the negative electrode plate 2. However, when only the separator A (3) is used or when the separator A (3) is arranged on the negative electrode plate 2 side. The internal resistance increased with the decrease of the electrolyte, and the rate of capacity decrease was large. This is the negative electrode plate 2
When the amount of the electrolytic solution present in the pores of the separator A is reduced, the electrolytic solution present in the pores of the separator A (3) is absorbed by the negative electrode plate 2, and as a result, the separator A (3) becomes exhausted and the internal resistance is reduced. It seems to have increased.
【００１１】[0011]
【発明の効果】本発明は、上述の通り構成されているの
で、電解液の減少がなくなり、長寿命のクラッド式密閉
鉛蓄電池を提供することができる。EFFECTS OF THE INVENTION Since the present invention is configured as described above, it is possible to provide a clad-type sealed lead acid battery that has a long life and does not reduce the amount of electrolyte.
【図１】本発明の一実施例を示す横断面図である。FIG. 1 is a cross-sectional view showing an embodiment of the present invention.
１ クラッド式正極板 ２ ペースト式負極板 ３ セパレータＡ ４ セパレータＢ ５ ゲル電解液 1 Clad type positive electrode plate 2 Paste type negative electrode plate 3 Separator A 4 Separator B 5 Gel electrolyte
Claims (1)
（５）を用いた密閉形鉛蓄電池において、繊維径が０．
４〜０．９μｍのガラス繊維からなるセパレータＡ
（３）と繊維径１０〜３０μｍのガラス繊維からなるセ
パレータＢ（４）の２層のセパレータをセパレータＢ
（４）が負極板（２）表面に当接するように正極板
（１）と負極板（２）の間に配置していることを特徴と
するクラッド式密閉形鉛蓄電池1. A sealed lead-acid battery using a clad positive electrode plate (1) and a gel electrolyte (5) having a fiber diameter of 0.
Separator A made of 4-0.9 μm glass fiber
Separator B consisting of (3) and a separator B (4) made of glass fiber having a fiber diameter of 10 to 30 μm
(4) is disposed between the positive electrode plate (1) and the negative electrode plate (2) so that the surface of the negative electrode plate (2) contacts the clad type sealed lead acid battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5179894A JPH0714603A (en) | 1993-06-24 | 1993-06-24 | Clad type sealed lead-acid battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5179894A JPH0714603A (en) | 1993-06-24 | 1993-06-24 | Clad type sealed lead-acid battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0714603A true JPH0714603A (en) | 1995-01-17 |
Family
ID=16073767
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5179894A Pending JPH0714603A (en) | 1993-06-24 | 1993-06-24 | Clad type sealed lead-acid battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0714603A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998015020A1 (en) * | 1996-09-30 | 1998-04-09 | Amer-Sil S.A. | Absorbing plate separator for valve-regulated lead-acid electric batteries |
-
1993
- 1993-06-24 JP JP5179894A patent/JPH0714603A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998015020A1 (en) * | 1996-09-30 | 1998-04-09 | Amer-Sil S.A. | Absorbing plate separator for valve-regulated lead-acid electric batteries |
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