JPH0817460A - Lead acid battery - Google Patents
Lead acid batteryInfo
- Publication number
- JPH0817460A JPH0817460A JP6147545A JP14754594A JPH0817460A JP H0817460 A JPH0817460 A JP H0817460A JP 6147545 A JP6147545 A JP 6147545A JP 14754594 A JP14754594 A JP 14754594A JP H0817460 A JPH0817460 A JP H0817460A
- Authority
- JP
- Japan
- Prior art keywords
- melting point
- low melting
- point alloy
- lead
- alloy layer
- 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
-
- 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)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、鉛蓄電池の改善に関す
るものであり、さらに詳しくは、耳腐食の抑制を目的と
した電池の製造法の改善を図るものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a lead storage battery, and more specifically to an improvement in a battery manufacturing method for suppressing ear corrosion.
【０００２】[0002]
【従来の技術】鉛蓄電池の電極群は、一般に複数枚の極
板の耳を同極性について合金製の棚に集合溶接して製造
する。その集合溶接する方法には、型内の溶融合金に極
板群の耳を倒立挿入し凝固させるキャストオン方式と、
極板の耳を櫛状の金型に挟持し、極板耳を上部に突出さ
せた凹部を形成し、上記凹部に鉛合金を溶融して流し込
んだり、足し鉛の形で供給した合金を耳の一部とともに
火炎で溶解するバーニング方式がある。2. Description of the Related Art Generally, an electrode group of a lead storage battery is manufactured by collectively welding the ears of a plurality of electrode plates to a shelf made of an alloy having the same polarity. The method of collective welding includes a cast-on method in which the ears of the electrode plate group are invertedly inserted into the molten alloy in the mold and solidified,
The ears of the electrode plate are sandwiched between comb-shaped molds, and the recesses are formed by protruding the electrode plate ears to the upper part.The lead alloy is melted and poured into the recessed parts, or the alloy supplied in the form of lead is added to the ears. There is a burning method that melts with a flame along with a part of.
【０００３】近年になって、陰極格子に鉛−カルシウム
−スズなどのカルシウム合金系の圧延シートなどシート
状鉛合金がエキスパンド加工されて採用されるようにな
り、ハイブリッド電池や、陽極格子にもカルシウム合金
を採用したカルシウム電池などが登場し、メンテナンス
フリー化への取り組みが進んでいる。しかし、これらの
電池においても、蒸発や水の電気分解反応等による電解
液の減少が本質的に不可避の問題である。また近年の自
動車のエンジンルームの高温化等、電池の使用条件の悪
化によって減液が加速されてもいる。In recent years, sheet-shaped lead alloys such as rolled sheets of calcium alloys such as lead-calcium-tin have been expanded and adopted for the cathode grid, and have been adopted for hybrid batteries and anode grids. With the advent of alloy-based calcium batteries, efforts are being made to make them maintenance-free. However, even in these batteries, the reduction of the electrolytic solution due to evaporation, electrolysis reaction of water, etc. is essentially an unavoidable problem. In addition, liquid reduction has been accelerated due to deterioration of battery use conditions such as a recent increase in temperature of an automobile engine room.
【０００４】[0004]
【発明が解決しようとする課題】この種の構成の電池に
おいて、従来より使用中に陰極の接続棚が電解液から露
出すると、棚下側の耳の付け根の近傍で腐食が進行し、
断線するという現象が生ずる場合がある。この現象は棚
と耳の間に隙間がある時に顕著に見られる。この隙間を
なくす方法の一つとして、特開昭５８−２２５５６８
号、特開昭６３−２３７３５４号などにみられるよう
に、耳の表面に低融点合金層（例えば鉛−スズ合金）を
形成して棚と耳の濡れ性を向上させ、溶接性を改善する
方法がある。このとき、耳の表面に低融点合金を形成す
る方法としては、一般に鉛合金シートの表面の極板の耳
にあたる部分に低融点合金層として低融点合金リボンを
圧延により圧着する方法が用いられている。しかし、こ
の方法では、鉛合金シートと低融点合金層との間に圧延
時における伸びに差があり、鉛合金シートと低融点合金
層との間にすべりが生じるため、うまく圧着されず、後
工程で多くの不良極板が発生する。In the battery of this type, when the cathode connection shelf is exposed from the electrolyte during use, corrosion progresses in the vicinity of the base of the ear below the shelf,
The phenomenon of disconnection may occur. This phenomenon is noticeable when there is a gap between the shelf and the ear. As one of methods for eliminating this gap, Japanese Patent Laid-Open No. 225568/1983
No. 63-237354, a low melting point alloy layer (for example, a lead-tin alloy) is formed on the surface of the ear to improve the wettability of the shelf and the ear and improve the weldability. There is a way. At this time, as a method of forming the low-melting point alloy on the surface of the ear, a method of generally pressure-bonding a low-melting point alloy ribbon as a low-melting point alloy layer to a part of the surface of the lead alloy sheet corresponding to the ear of the electrode plate is used. There is. However, in this method, there is a difference in elongation at the time of rolling between the lead alloy sheet and the low melting point alloy layer, and slippage occurs between the lead alloy sheet and the low melting point alloy layer, so that it is not crimped well, Many defective plates are generated in the process.
【０００５】そこで、本発明は、低融点合金層の耳部へ
の密着性を向上し、棚と耳部の間の腐食を良好に抑制す
ることのできる鉛蓄電池を提供することを目的とする。Therefore, it is an object of the present invention to provide a lead acid battery which can improve the adhesion of the low melting point alloy layer to the ears and satisfactorily suppress the corrosion between the shelf and the ears. .
【０００６】[0006]
【課題を解決するための手段】本発明は、陰極板の耳部
の表面に低融点合金層を備えた鉛蓄電池において、前記
低融点合金層が、該低融点合金層の圧延伸び率と陰極耳
母材の圧延伸び率との間の圧延伸び率を有する少なくと
も１層の中間層を介して前記耳部に圧着されていること
を特徴とするものである。The present invention relates to a lead-acid battery having a low melting point alloy layer on the surface of the edge of a cathode plate, wherein the low melting point alloy layer is a rolling elongation ratio of the low melting point alloy layer and a cathode. It is characterized in that it is pressure-bonded to the ears through at least one intermediate layer having a rolling elongation between the ears of base metal.
【０００７】前記中間層の圧延伸び率は、前記陰極耳母
材の圧延伸び率と前記低融点合金層の圧延伸び率のほぼ
中間の値に設定されていることが望ましい。また、前記
中間層も低融点合金で形成され、前記低融点合金層およ
び中間層が、共に鉛−スズ系合金で形成されていること
が望ましい。It is desirable that the rolling elongation of the intermediate layer is set to an intermediate value between the rolling elongation of the cathode selvage base material and the rolling elongation of the low melting point alloy layer. Further, it is preferable that the intermediate layer is also formed of a low melting point alloy, and both the low melting point alloy layer and the intermediate layer are formed of a lead-tin alloy.
【０００８】[0008]
【作用】本発明においては、鉛合金製の耳部と低融点合
金層との間に両者の中間の圧延伸び率を有する中間層、
特に上記低融点合金層とは別の中間低融点合金層を介在
させることによって、耳部と低融点合金層との圧延圧着
時においての両者の伸びの差により生ずるすべりを防止
し、良好な圧延状態を得ることができるため、全体の圧
着結合性が向上し、圧着以降の加工工程において低融点
合金層が剥離しない極板を得ることができる。In the present invention, between the lead alloy ear and the low melting point alloy layer, an intermediate layer having a rolling elongation ratio intermediate between the two,
In particular, by interposing an intermediate low-melting-point alloy layer different from the low-melting-point alloy layer, it is possible to prevent slippage caused by the difference in elongation between the selvage portion and the low-melting point alloy layer during rolling and pressure bonding, and to achieve good rolling. Since the state can be obtained, the entire pressure bonding bondability is improved, and it is possible to obtain an electrode plate in which the low melting point alloy layer does not separate in the processing steps after pressure bonding.
【０００９】[0009]
【実施例】以下、本発明の実施例を図面を参照しながら
説明する。Embodiments of the present invention will be described below with reference to the drawings.
【００１０】図１に本発明の鉛蓄電池の陰極棚部分の断
面図を示す。図２に図１の陰極耳１の断面の拡大図を示
す。鉛合金シート４（Ｐｂ−０．１％Ｃａ−０．３％Ｓ
ｎ、伸び１１％）と低融点合金リボン５（Ｐｂ−５０％
Ｓｎ、伸び９３％）との間に鉛合金シート４と低融点合
金リボン５の中間程度の圧延伸び率を有する別の低融点
合金リボン６（Ｐｂ−１０％Ｓｎ、伸び４５％）が介在
している。溶接性を向上させるにはＰｂ−５０％Ｓｎ付
近の組成が好ましいが、伸びが鉛合金シートに比べ著し
く大きい。一方、Ｐｂ−１０％Ｓｎ合金は伸びは比較的
鉛合金シートに近いため、鉛合金シート４に対し圧着性
が良好である。なお、％はすべて重量％である。FIG. 1 shows a sectional view of the cathode shelf portion of the lead storage battery of the present invention. FIG. 2 shows an enlarged view of the cross section of the cathode ear 1 of FIG. Lead alloy sheet 4 (Pb-0.1% Ca-0.3% S
n, elongation 11%) and low melting point alloy ribbon 5 (Pb-50%)
Sn, elongation 93%), another low-melting-point alloy ribbon 6 (Pb-10% Sn, elongation 45%) having an intermediate rolling elongation between the lead alloy sheet 4 and the low-melting point alloy ribbon 5 is interposed. ing. A composition near Pb-50% Sn is preferable to improve weldability, but the elongation is remarkably larger than that of the lead alloy sheet. On the other hand, since the Pb-10% Sn alloy has an elongation relatively close to that of the lead alloy sheet, it has a good pressure-bonding property to the lead alloy sheet 4. All percentages are by weight.
【００１１】図３に、本実施例の上記構造の耳を有する
陰極板を用いた鉛蓄電池Ａと、鉛合金シート４に低融点
合金リボン５を直接圧着した耳構造を有する陰極板を用
いた鉛蓄電池Ｂの極板加工工程での不良極板（極板耳部
分のリボンが剥離したもの）の数を示す。図３から分か
るように、鉛蓄電池Ａでは低融点合金リボン５および鉛
合金シート４と、低融点合金リボン５の中間程度の伸び
を有する別の低融点合金リボン６が鉛合金シート４から
剥離することがないため工程での不良極板の数は鉛蓄電
池Ｂに比べて著しく減少した。FIG. 3 shows a lead storage battery A using the cathode plate having the ears of the above structure of this embodiment, and a cathode plate having the ears structure in which the low melting point alloy ribbon 5 is directly pressure-bonded to the lead alloy sheet 4. The number of defective electrodes (those in which the ribbon of the electrode plate is peeled off) in the electrode plate processing step of the lead storage battery B is shown. As can be seen from FIG. 3, in the lead storage battery A, the low-melting-point alloy ribbon 5 and the lead-alloy sheet 4 and another low-melting-point alloy ribbon 6 having an intermediate elongation of the low-melting-point alloy ribbon 5 are separated from the lead-alloy sheet 4. As a result, the number of defective electrodes in the process was significantly reduced as compared with the lead storage battery B.
【００１２】本実施例の鉛蓄電池Ａ、上記の鉛蓄電池
Ｂ、および鉛合金シート４のみを用いた鉛蓄電池Ｃの３
種の鉛蓄電池を作製し、電解液を棚下で保持し、すなわ
ち棚が電解液から露出した状態を保ち、９０℃、１３．
８V で定電圧充電試験を４週間行って腐食断線する割合
を調べた。その結果を表１に示す。Lead-acid battery A of this embodiment, lead-acid battery B described above, and lead-acid battery C using only lead alloy sheet 4
A lead acid battery of the kind described above was prepared and the electrolytic solution was held under the shelf, that is, the shelf was kept exposed from the electrolytic solution,
A constant voltage charging test was conducted at 8 V for 4 weeks to examine the rate of corrosion breakage. Table 1 shows the results.
【００１３】[0013]
【表１】 [Table 1]
【００１４】Ｃの電池では大半の耳が断線していた。Ｂ
の電池ではわずかに断線が見られた。これは低融点合金
リボン５が鉛合金シートに完全に密着していない部分が
あり、この部分が試験中に剥離して腐食断線が起ったも
のと考えられる。Ａの電池ではリボンの密着性が良いた
めリボンの剥離はなく、断線も全くなかった。Most of the ears of the C battery were broken. B
There was a slight disconnection in the battery. It is considered that there is a portion where the low melting point alloy ribbon 5 is not completely adhered to the lead alloy sheet, and this portion was peeled off during the test to cause corrosion disconnection. In the battery of A, the adhesion of the ribbon was good, so that the ribbon was not peeled off and the wire was not broken at all.
【００１５】なお、上記実施例では低融点合金層として
鉛−スズ合金を用いたが、鉛−カドミウム合金を用いて
も同様の結果が得られた。Although the lead-tin alloy is used as the low melting point alloy layer in the above-mentioned embodiment, the same result is obtained by using the lead-cadmium alloy.
【００１６】[0016]
【発明の効果】以上のように本発明の鉛蓄電池は不良極
板の数を減少させたうえで腐食断線を抑制し、メンテナ
ンスフリー電池の安全性を高めるものである。As described above, the lead-acid battery of the present invention reduces the number of defective electrode plates, suppresses corrosion breakage, and enhances the safety of the maintenance-free battery.
【図１】本発明の実施例による陰極棚部分の断面図であ
る。FIG. 1 is a sectional view of a cathode shelf portion according to an embodiment of the present invention.
【図２】図１の陰極耳の断面拡大図である。FIG. 2 is an enlarged cross-sectional view of the cathode ear of FIG.
【図３】本発明の実施例による電池と従来の構造の電池
の製造工程で発生する不良極板の数の比較のグラフ図で
ある。FIG. 3 is a graph showing a comparison of the number of defective plates generated in a manufacturing process of a battery according to an embodiment of the present invention and a battery having a conventional structure.
１ 陰極耳 ２ 陰極棚 ３ 陰極板 ４ 鉛合金シート ５ 低融点合金リボン ６ ４と５の中間程度の伸びを有する別の低融点合金リ
ボンDESCRIPTION OF SYMBOLS 1 Cathode ear 2 Cathode shelf 3 Cathode plate 4 Lead alloy sheet 5 Low melting point alloy ribbon 6 Another low melting point alloy ribbon having an elongation in the middle of 4 and 5
Claims (4)
に低融点合金層を備えた鉛蓄電池において、前記低融点
合金層が、該低融点合金層の圧延伸び率と陰極耳母材の
圧延伸び率との間の圧延伸び率を有する少なくとも１層
の中間層を介して前記耳部に圧着されていることを特徴
とする鉛蓄電池。1. A lead-acid battery having a low melting point alloy layer on the surface of an edge of a cathode plate made of a lead alloy, wherein the low melting point alloy layer is a rolling elongation of the low melting point alloy layer and a cathode ear mother. A lead storage battery, wherein the lead storage battery is pressure-bonded to the ears via at least one intermediate layer having a rolling elongation between the rolling elongation of the material.
母材の圧延伸び率と前記低融点合金層の圧延伸び率のほ
ぼ中間の値に設定されている請求項１の鉛蓄電池。2. The lead acid battery according to claim 1, wherein the rolling elongation of the intermediate layer is set to a value approximately halfway between the rolling elongation of the cathode selvage base material and the rolling elongation of the low melting point alloy layer.
求項１または２の鉛蓄電池。3. The lead acid battery according to claim 1, wherein the intermediate layer is made of a low melting point alloy.
鉛−スズ系合金で形成された請求項１ないし３の鉛蓄電
池。4. The lead storage battery according to claim 1, wherein the low melting point alloy layer and the intermediate layer are both formed of a lead-tin alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6147545A JPH0817460A (en) | 1994-06-29 | 1994-06-29 | Lead acid battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6147545A JPH0817460A (en) | 1994-06-29 | 1994-06-29 | Lead acid battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0817460A true JPH0817460A (en) | 1996-01-19 |
Family
ID=15432751
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6147545A Pending JPH0817460A (en) | 1994-06-29 | 1994-06-29 | Lead acid battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0817460A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006049295A1 (en) | 2004-11-08 | 2006-05-11 | Gs Yuasa Corporation | Negative electrode current collector for lead storage battery and lead storage battery including the same |
| CN103282548A (en) * | 2010-10-26 | 2013-09-04 | 新日铁住金株式会社 | Antioxidant and method for producing metal material |
-
1994
- 1994-06-29 JP JP6147545A patent/JPH0817460A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006049295A1 (en) | 2004-11-08 | 2006-05-11 | Gs Yuasa Corporation | Negative electrode current collector for lead storage battery and lead storage battery including the same |
| CN103282548A (en) * | 2010-10-26 | 2013-09-04 | 新日铁住金株式会社 | Antioxidant and method for producing metal material |
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