JP3185300B2 - Sealed lead-acid battery - Google Patents
Sealed lead-acid batteryInfo
- Publication number
- JP3185300B2 JP3185300B2 JP34780591A JP34780591A JP3185300B2 JP 3185300 B2 JP3185300 B2 JP 3185300B2 JP 34780591 A JP34780591 A JP 34780591A JP 34780591 A JP34780591 A JP 34780591A JP 3185300 B2 JP3185300 B2 JP 3185300B2
- Authority
- JP
- Japan
- Prior art keywords
- sealed lead
- electrode plate
- positive electrode
- acid battery
- grid
- 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 - Fee Related
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
-
- 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
- Cell Electrode Carriers And Collectors (AREA)
- Secondary Cells (AREA)
Description
【０００１】[0001]
【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。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a sealed lead-acid battery.
【０００２】[0002]
【従来の技術】ポータブル機器用電源やバックアップ用
電源として頻繁に使用されるようになった密閉形鉛蓄電
池は、充電中に正極板から発生する酸素ガスを負極板で
再結合させる、いわゆる酸素サイクルを利用して密閉化
を計っている。そのため密閉形鉛電池は、正極板と負極
版ならびに微細ガラス繊維を主成分とする隔離体あるい
はシリカコロイドに電解液を含浸保持させ、さらに格子
合金に水素過電圧の高いアンチモンフリー合金を使用し
ている。2. Description of the Related Art A sealed lead-acid battery, which has been frequently used as a power supply for portable equipment or a backup power supply, is a so-called oxygen cycle in which oxygen gas generated from a positive electrode plate during charging is recombined at a negative electrode plate. Is used to make the seal. For this reason, sealed lead batteries use an antimony-free alloy with a high hydrogen overvoltage for the grid alloy, in which the electrolyte is impregnated and held in a positive electrode plate, a negative electrode plate, and a separator or silica colloid composed mainly of fine glass fibers. .
【０００３】[0003]
【発明が解決しようとする課題】これらの電池はトリク
ル用途やサイクル用途に幅広く活用されているが、電池
が過充電されたり、深い放電が行なわれたりする場合が
多い。このような場合正極板の劣化、すなわち活物質と
格子との界面に不働態層が形成したり、活物質と格子と
の密着が悪くなり、早期に容量低下を生じやすかった。
この問題点は、特にＰｂ−Ｃａ系合金に顕著に現われる
が、根本的な解決策がなく、経験的に従来より正極格子
を太くしたり、活物質密度を高くして対処していた。し
かし、これらの方法は、いずれもエネルギー密度の低下
につながるため、得策ではなかった。Although these batteries are widely used for trickle applications and cycle applications, they are often overcharged or deeply discharged. In such a case, the deterioration of the positive electrode plate, that is, a passivation layer is formed at the interface between the active material and the lattice, or the adhesion between the active material and the lattice is deteriorated, and the capacity is easily reduced at an early stage.
This problem is particularly conspicuous in Pb-Ca alloys, but there is no fundamental solution, and it has been empirically dealt with by making the positive electrode grid thicker or increasing the active material density. However, none of these methods is advantageous because it leads to a decrease in energy density.
【０００４】[0004]
【問題点を解決するための手段】本発明は、正極格子幅
をａ、格子幅方向の電槽内寸をｂとしたとき、（ｂ−
ａ）／ａを２％以下にしたことを特徴とする密閉形鉛蓄
電池を提供するものであり、もって上記課題を解決する
ものである。According to the present invention, when the positive electrode grid width is a and the inner size of the battery case in the grid width direction is b, (b−
a) To provide a sealed lead-acid battery characterized in that / a is set to 2% or less, thereby solving the above problem.
【０００５】[0005]
【作用】Ｐｂ−Ｃａ系合金を格子に用いた鉛蓄電池は、
深い放電や過放電されると、活物質の膨張（放電時）、
収縮（充電時）および正極格子の腐食が進行することに
よって、極板の変形が生じる。そのため、格子と活物質
との密着あるいは活物質間の結合力が低下して容量低下
になると考えられる。そこで正極格子幅と格子幅方向の
電槽内寸との差を小さくして極板幅方向への伸びを抑制
し、活物質と格子の密着性あるいは活物質粒子間の結合
力を高めることができる。The lead-acid battery using a Pb-Ca-based alloy for the grid is:
When deep discharge or overdischarge occurs, the active material expands (during discharge),
As the shrinkage (during charging) and the corrosion of the positive electrode grid progress, the electrode plate is deformed. For this reason, it is considered that the adhesion between the lattice and the active material or the bonding force between the active materials is reduced and the capacity is reduced. Therefore, it is necessary to reduce the difference between the positive electrode grid width and the inner size of the battery case in the grid width direction to suppress the elongation in the electrode plate width direction, and to enhance the adhesion between the active material and the grid or the bonding force between the active material particles. it can.
【０００６】[0006]
【実施例】以下本発明をその実施例について図面に基ず
き詳述する。図１は本発明の一実施例における平面の部
分断面図を示したものであり、図２はその正面の断面図
である。これらの図において、１は正極板、２はセパレ
ータ、３は負極板であり、正極板１としてＰｂ−Ｃａ−
Ｓｎ合金よりなる格子に鉛粉と水と硫酸からなるペース
トを充填し、化成を行った厚さ２．９ｍｍ、高さ６７ｍ
ｍ、幅４３ｍｍのものを使用した。一方、負極板２は同
じくＰｂ−Ｃａ−Ｓｎ合金よりなる格子に鉛粉、水、硫
酸、硫酸バリウムおよび有機添加物よりなるペーストを
充填し、化成を行った厚さ１．７ｍｍ、高さ６７ｍｍ、
幅４３ｍｍのものを使用した。これらの正極板１と負極
板２をそれぞれ４枚と５枚をセパレータ２を介して交互
に組み合わせ極板群とした。４は電槽であり、比較のた
め電槽内寸が５０ｍｍ、４７ｍｍ、４５ｍｍ、４４ｍｍ
および４３ｍｍとしたものを試作した。BRIEF DESCRIPTION OF THE DRAWINGS FIG. FIG. 1 is a partial cross-sectional view of a plane according to an embodiment of the present invention, and FIG. 2 is a front cross-sectional view thereof. In these figures, 1 is a positive electrode plate, 2 is a separator, 3 is a negative electrode plate, and Pb-Ca-
A grid made of Sn alloy was filled with a paste made of lead powder, water, and sulfuric acid, and was subjected to chemical conversion. The thickness was 2.9 mm, and the height was 67 m.
m and a width of 43 mm were used. On the other hand, the negative electrode plate 2 is formed by filling a grid made of a Pb-Ca-Sn alloy with a paste made of lead powder, water, sulfuric acid, barium sulfate, and an organic additive, and performing a chemical conversion to a thickness of 1.7 mm and a height of 67 mm. ,
One having a width of 43 mm was used. Four and five positive electrode plates 1 and negative electrode plates 2 were alternately interposed via a separator 2 to form an electrode plate group. Reference numeral 4 denotes a battery case, and the size of the battery case is 50 mm, 47 mm, 45 mm, and 44 mm for comparison.
And a prototype having a diameter of 43 mm were produced.
【０００７】これらの電槽に上記の極板群を挿入し、比
重１．３２／２０℃の硫酸を注液した６Ｖ、２０時間率
放電容量８Ａｈの密閉形鉛蓄電池を作成し、０．８Ａの
定電流で連続通電し、過充電試験を行った。なお、通電
１００時間毎に２Ａ放電（終止電圧１．７０Ｖ／セル）
を行い、放電容量を確認し、初期容量の５０％に容量が
低下した時点を寿命終了とした。[0007] The above-mentioned electrode group was inserted into these battery containers, and a sealed lead-acid battery having a 6 V, 20 hour rate discharge capacity of 8 Ah into which sulfuric acid having a specific gravity of 1.32 / 20 ° C was injected was prepared. , And an overcharge test was performed. In addition, 2A discharge every 100 hours of energization (final voltage 1.70V / cell)
The discharge capacity was confirmed, and the point in time when the capacity was reduced to 50% of the initial capacity was defined as the end of life.
【０００８】図３は、正極格子幅をａ、格子幅方向の電
槽内寸をｂとしたとき、（ｂ−ａ）／ａと過充電寿命と
の関係を示す。（ｂ−ａ）／ａを２％以下にすると過充
電寿命が大幅に改善されることが分かる。FIG. 3 shows the relationship between (ba) / a and the overcharge life when the positive electrode grid width is a and the inner size of the battery case in the grid width direction is b. It can be seen that when (ba) / a is 2% or less, the overcharge life is greatly improved.
【０００９】なお、電槽は極板の伸びによって破壊しな
いよう強化しておくことは言うまでもない。また、（ｂ
−ａ）／ａが０以下の条件では蓄電池が構成されえない
ことは等業者において自明のことである。It is needless to say that the battery case is strengthened so as not to be broken by the extension of the electrode plate. Also, (b
It is obvious to those skilled in the art that a storage battery cannot be formed under the condition that -a) / a is 0 or less.
【００１０】[0010]
【発明の効果】以上述べた如く、本発明によれば、エネ
ルギー密度を低下させることなく過充電時や深放電時の
早期特性を向上させることができる。As described above, according to the present invention, the early characteristics at the time of overcharge or deep discharge can be improved without lowering the energy density.
【図１】本発明の一実施例における平面の部分断面図で
ある。FIG. 1 is a partial sectional view of a plane according to an embodiment of the present invention.
【図２】本発明の一実施例における正面の断面図であ
る。FIG. 2 is a front sectional view of one embodiment of the present invention.
【図３】過充電寿命特性を示す図である。FIG. 3 is a diagram showing overcharge life characteristics.
１ 正極板 ２ セパレータ ３ 負極板 ４ 電槽 ａ 正極格子幅 ｂ 格子幅方向の電槽内寸 DESCRIPTION OF SYMBOLS 1 Positive electrode plate 2 Separator 3 Negative electrode plate 4 Battery case a Positive electrode grid width b Battery case size in the grid width direction
Claims (1)
をｂとしたとき、（ｂ−ａ）／ａを２％以下にしたこと
を特徴とする密閉形鉛蓄電池。1. A sealed lead-acid battery wherein (ba) / a is set to 2% or less, where a is a positive electrode grid width and b is a battery case size in a grid width direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP34780591A JP3185300B2 (en) | 1991-12-02 | 1991-12-02 | Sealed lead-acid battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP34780591A JP3185300B2 (en) | 1991-12-02 | 1991-12-02 | Sealed lead-acid battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05159797A JPH05159797A (en) | 1993-06-25 |
| JP3185300B2 true JP3185300B2 (en) | 2001-07-09 |
Family
ID=18392708
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP34780591A Expired - Fee Related JP3185300B2 (en) | 1991-12-02 | 1991-12-02 | Sealed lead-acid battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3185300B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2778270B1 (en) * | 1998-04-30 | 2000-07-13 | Centre Nat Rech Scient | LEAD ACCUMULATOR OF IMPROVED PERFORMANCE |
| EP3553871A4 (en) * | 2016-12-07 | 2020-01-15 | Hitachi Chemical Company, Ltd. | Liquid type lead storage battery and production method therefor |
-
1991
- 1991-12-02 JP JP34780591A patent/JP3185300B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH05159797A (en) | 1993-06-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| S111 | Request for change of ownership or part of ownership |
Free format text: JAPANESE INTERMEDIATE CODE: R313111 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| LAPS | Cancellation because of no payment of annual fees |