JPH07307148A - Lead-acid battery - Google Patents
Lead-acid batteryInfo
- Publication number
- JPH07307148A JPH07307148A JP6124566A JP12456694A JPH07307148A JP H07307148 A JPH07307148 A JP H07307148A JP 6124566 A JP6124566 A JP 6124566A JP 12456694 A JP12456694 A JP 12456694A JP H07307148 A JPH07307148 A JP H07307148A
- Authority
- JP
- Japan
- Prior art keywords
- strap
- current collecting
- lead
- lattice
- cell
- 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.)
- Granted
Links
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
Landscapes
- Connection Of Batteries Or Terminals (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は鉛蓄電池の改良に関する
もので、特に正および負極板にエキスパンド格子を用い
た鉛蓄電池の寿命性能を改善するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a lead storage battery, and more particularly to improving the life performance of a lead storage battery using expanded grids on the positive and negative plates.
【０００２】[0002]
【従来の技術とその課題】現在、鉛蓄電池用格子の製法
としては、鋳造方式またはエキスパンド方式が主流とな
っている。2. Description of the Related Art At present, a casting method or an expanding method is predominantly used as a method for producing a grid for a lead storage battery.
【０００３】鋳造方式の長所は、任意の形状、例えば電
気抵抗が小さくなる形状などを形成できる、格子の周囲
をとり囲む枠（以後、額縁と呼ぶ）が形成可能なため、
機械的に変形しにくい格子を作ることができる、といっ
たことがあげられる。短所としては、バッチ式であるた
めに生産性に劣る、ペースト充填などの後工程に連結し
た一貫ラインとすることが困難である、鉛−カルシウム
系合金など強度の劣る合金の場合には鋳造が困難である
ことなどである。The advantage of the casting method is that it is possible to form a frame (hereinafter referred to as a frame) that surrounds the periphery of the lattice, which can form an arbitrary shape, for example, a shape having a low electric resistance.
It is possible to make a grid that is not easily mechanically deformed. As a disadvantage, it is inferior in productivity because it is a batch type, it is difficult to form an integrated line that is connected to a later process such as paste filling, and in the case of an alloy having poor strength such as a lead-calcium alloy, casting is difficult. It is difficult.
【０００４】エキスパンド方式は、圧延などにより作製
した鉛合金シートを展開して網目状格子とするものであ
る。展開方式は、シートに回転する刃物で切れ目を入れ
た後引き伸ばすロータリー方式と、上下に運動するＶ字
状の刃物でシートを切断しながら引き伸ばすレシプロ方
式の２つが主流である。いずれも連続的に生産が可能で
あり、ペースト充填・乾燥工程まで一貫したラインを設
置できることから、鋳造方式に比べて極めて生産性が高
いという特徴を持つ。さらに、鉛−カルシウム系合金や
鉛−カルシウム−錫系合金等であっても、容易に鉛合金
シートを作製できる。一方短所としては、展開により形
成できる格子形状がある程度限定される、格子に縦方向
の額縁が形成不可能なため機械的強度が劣り変形しやす
いといった点である。The expanding method is a method in which a lead alloy sheet produced by rolling or the like is developed into a mesh lattice. There are two main development methods: a rotary method in which a sheet is cut by a rotating blade and then stretched, and a reciprocating method in which a sheet is stretched while being cut by a V-shaped blade that moves up and down. All of them are capable of continuous production, and since they can set up a consistent line for paste filling and drying processes, they have the characteristic of being extremely high in productivity compared to the casting method. Furthermore, a lead alloy sheet can be easily produced even with a lead-calcium alloy, a lead-calcium-tin alloy, or the like. On the other hand, the disadvantages are that the lattice shape that can be formed by expansion is limited to some extent, and since the vertical frame cannot be formed in the lattice, the mechanical strength is poor and the lattice is easily deformed.
【０００５】鉛蓄電池の正極格子では、格子表面のＰｂ
が体積の大きなＰｂＯ2 へと変化するため、格子に引っ
張り力がかかり、格子の伸び・変形がおこりやすい。特
にエキスパンド格子を用いた場合には、格子強度が劣る
ため変形が大きくなり、早期に電池が寿命となってしま
うという問題点がある。In the positive electrode grid of a lead-acid battery, Pb on the grid surface is used.
Changes to PbO 2 having a large volume, so that a tensile force is applied to the lattice and the lattice is likely to expand and deform. In particular, when the expanded lattice is used, there is a problem in that the lattice strength is inferior and the deformation becomes large and the battery has a short life.
【０００６】[0006]
【課題を解決するための手段】本発明は、エキスパンド
格子を正および負極板に用いた場合でも、格子の変形を
抑制でき、寿命性能を改善する方法を提供するものであ
る。その要旨は、鉛合金シートをエキスパンド加工して
作製した格子にペーストを充填した正および負極板を備
えた鉛蓄電池において、該正および負極板の集電耳部の
センター位置が極板幅Ｗに対して端から１／５Ｗ以上４
／５Ｗ以下であり、同極性の集電耳部を接続するストラ
ップはキャスト・オン・ストラップ法により形成された
ものであり、セル間接続部のセンター位置と集電耳部の
センター位置とを一致させたことを特徴とするものであ
る。DISCLOSURE OF THE INVENTION The present invention provides a method for suppressing the deformation of the lattice and improving the life performance even when the expanded lattice is used for the positive and negative plates. The gist of the present invention is to provide a lead-acid battery having positive and negative electrodes in which a grid is prepared by expanding a lead alloy sheet and filled with a paste, in which the center position of the current collecting ears of the positive and negative electrodes is the electrode plate width W. On the other hand, 1 / 5W or more from the end 4
/ 5W or less, the strap that connects the current collecting ears of the same polarity is formed by the cast-on-strap method, and the center position of the cell-to-cell connecting part matches the center position of the current collecting ears. It is characterized by having done.
【０００７】[0007]
【作用】セル間接続部と集電耳部のセンター位置を一致
させているので極板はストラップおよびセル間接続部に
より固定され、ストラップの位置を極板の中央寄りとす
ることによりストラップ位置から極板端部までの距離が
短くなるので端部における極板伸びが少なくなり、極板
全体の変形が抑制されることになる。[Function] Since the center positions of the cell-to-cell connecting portion and the current collecting ear portion are made to coincide with each other, the electrode plate is fixed by the strap and the cell-to-cell connecting portion. Since the distance to the end of the electrode plate is shortened, the electrode plate elongation at the end is reduced, and the deformation of the entire electrode plate is suppressed.
【０００８】[0008]
【実施例】エキスパンド格子を用いた電池の寿命原因
は、そのほとんどが格子の変形によるものであるため、
これを防止するための電池構造を種々検討した。[Examples] Most of the causes of battery life using the expanded grid are deformations of the grid.
Various studies have been made on battery structures for preventing this.
【０００９】図１は本発明による電池構造の一例、図２
はエキスパンド格子の一例を示した図である。エキスパ
ンド格子の集電耳１はストラップ２により同極性どうし
が接続されており、さらにストラップはセル間接続部３
によって隣接セルと接続されている。隣接セルとの接続
は、例えば押し出し電気抵抗溶接により行われる。これ
は、隣あったセルのセル間接続部どうしをチップ付の電
極でプレスし、隔壁に開けられた穴を通してセル間接続
部をチップの形状に突き出して接合させ、接合させた状
態で電流を流し、電気抵抗溶接するものである。FIG. 1 shows an example of a battery structure according to the present invention, FIG.
FIG. 3 is a diagram showing an example of an expanded lattice. The collecting ears 1 of the expanded lattice are connected to each other with the same polarity by the straps 2, and the straps are connected between the cells 3
Is connected to an adjacent cell by. The connection with the adjacent cell is performed by, for example, extrusion electric resistance welding. This is because the cell-to-cell connecting portions of adjacent cells are pressed with electrodes with chips, the cell-to-cell connecting portions are projected into the shape of the chip through the holes made in the partition wall, and the current is applied in the bonded state. Sinking and electric resistance welding.
【００１０】ストラップの形成方法は、現在バーナー溶
接およびキャスト・オン・ストラップ方式（以後、ＣＯ
Ｓと略す）が主流である。バーナー溶接は集電耳部にく
し状の治具を差し込み、その上にセル間接続用の部品を
置き、バーナーでこれらを溶接する方法である。図３
（ａ）にバーナー溶接によって成形したストラップ・セ
ル間接続部を示した。この方法では、セル間接続部のセ
ンター位置と集電耳部のセンター位置とを一致させるこ
とが作業上困難なためにストラップが大きくなり、電気
抵抗が大きくなってしまう。さらにストラップと溶接部
との距離が長くなることから、格子の縦方向の変形力を
十分に抑えることができず、格子やストラップ自体が変
形し易い、といった欠点を有している。The strap is currently formed by burner welding and cast-on-strap method (hereinafter referred to as CO
(Abbreviated as S) is the mainstream. Burner welding is a method in which a comb-shaped jig is inserted into the current collecting ear portion, parts for cell connection are placed on the jig, and these are welded with a burner. Figure 3
The strap-cell connection formed by burner welding is shown in (a). In this method, it is difficult to match the center position of the inter-cell connecting portion with the center position of the current collecting ear portion, and therefore the strap becomes large and the electric resistance becomes large. Further, since the distance between the strap and the welded portion becomes long, the lattice deforming force in the vertical direction cannot be sufficiently suppressed, and the lattice and the strap itself are easily deformed.
【００１１】一方、ＣＯＳは、ストラップ・セル間接続
部が形成された鋳型に溶融鉛を流し込んでおき、そこに
極板の集電耳を浸せき・凝固させるものである。図１は
ＣＯＳによりストラップ・セル間接続部を行ったもので
ある。この方法は、セル間接続部のセンター位置と集電
耳部のセンター位置を一致させることができるため、格
子の縦方向の変形力を接続部でささえることになり、格
子やストラップ自体が変形しにくい、また電気抵抗が小
さい、使用鉛量を少なくできるといった長所を有してい
る。従って、エキスパンド格子のように変形し易い格子
を使用するには、ＣＯＳ法が適しており、さらにストラ
ップの厚みを一定値以上に設定することで、格子の変形
を抑制することができる。On the other hand, COS is a method in which molten lead is poured into a mold in which a strap-cell connecting portion is formed, and the current collecting ears of the electrode plate are dipped and solidified therein. FIG. 1 shows the connection between the strap and the cell made by COS. With this method, the center position of the cell-to-cell connecting part and the center position of the current collecting ear part can be matched, so that the vertical deformation force of the lattice is supported by the connecting part, and the lattice and strap itself are deformed. It has the advantages of being difficult, having low electrical resistance, and reducing the amount of lead used. Therefore, the COS method is suitable for using a lattice that is easily deformed, such as an expanded lattice, and the deformation of the lattice can be suppressed by setting the strap thickness to a certain value or more.
【００１２】エキスパンド格子は、図２に示したように
上部額縁４の下方に、鉛シートの展開により作られた網
状部５がある構造となっている。鋳造格子の例を図４に
示した。鋳造格子にみられる縦の額縁６が、エキスパン
ド格子では形成できない。そのためエキスパンド格子
は、鋳造格子に比べて縦方向に変形し易い。しかし、集
電耳部だけはストラップ・セル間接続部により固定され
ているので、集電耳の下部の網状体はほとんど変形しな
い。また集電耳から離れた位置の網状体ほど縦方向への
変形が大きくなるものと考えられる。従って格子全体と
しての変形を少なくするためには、集電耳の位置を格子
のセンターにもってくるのが理想である。しかし、集電
耳がセンターにあると、正および負極耳が同位置にくる
ことになり、正、負極ストラップが形成できなくなるた
め、図２のように集電耳の位置をややずらす必要があ
る。そこで、格子変形がそれほど大きくならずにすむ集
電耳の位置の範囲を検討した。As shown in FIG. 2, the expanding lattice has a structure in which a net-like portion 5 formed by expanding a lead sheet is provided below the upper frame 4. An example of a cast grid is shown in FIG. The vertical frame 6 found in the cast grid cannot be formed in the expanded grid. Therefore, the expanded lattice is more likely to be deformed in the vertical direction than the cast lattice. However, since only the current collecting ears are fixed by the strap-cell connecting portion, the mesh body below the current collecting ears is hardly deformed. Further, it is considered that the mesh body located farther from the current collecting ear is more deformed in the vertical direction. Therefore, in order to reduce the deformation of the entire grid, it is ideal to bring the position of the current collecting ear to the center of the grid. However, if the current collecting ears are located in the center, the positive and negative electrode ears will be in the same position, and the positive and negative electrode straps cannot be formed. Therefore, it is necessary to slightly shift the position of the current collecting ears as shown in FIG. . Therefore, the range of the position of the current collecting ears where the lattice deformation does not become so large was examined.
【００１３】表１に示すような構成の自動車用電池（３
６Ｂ２０，１２Ｖ，２８Ａｈ／５ｈＲ）を作製し、試験
を行った。A battery for an automobile (3
6B20, 12V, 28Ah / 5hR) was prepared and tested.
【００１４】[0014]
【表１】 [Table 1]
【００１５】電池Ｎｏ．１〜４は、集電耳の位置を比較
するためのもの、Ｎｏ．４〜６はストラップ厚みを比較
するためのもの、Ｎｏ．４，７は溶接方法を比較するた
めのものである。図２にも示したように、集電耳の位置
Ａは極板の端から集電耳センターまでの距離であり、極
板幅Ｗに対する割合で表している（極板の別端からいえ
ばそれぞれ９／１０Ｗ、８／１０Ｗ、７／１０Ｗ、６／
１０Ｗとなるが、ここでは最小値で表記した）。Battery No. Nos. 1 to 4 are for comparing the positions of the current collecting ears. Nos. 4 to 6 are for comparing strap thickness, No. Reference numerals 4 and 7 are for comparing welding methods. As shown in FIG. 2, the position A of the current collecting ear is the distance from the end of the electrode plate to the center of the current collecting ear and is expressed as a ratio to the electrode plate width W (from the other end of the electrode plate. 9 / 10W, 8 / 10W, 7 / 10W, 6 /
Although it is 10 W, the minimum value is shown here).
【００１６】正極のエキスパンド格子に用いる鉛シート
の合金組成は、Ｐｂ−０．０６ｗｔ％Ｃａ−１．５ｗｔ
％Ｓｎ、負極用の鉛シートの合金組成はＰｂ−０．０６
ｗｔ％Ｃａ−０．５ｗｔ％Ｓｎである。いずれも冷間圧
延法により作製し、その厚みは正極用で１．１ｍｍ、負
極用で０．７ｍｍとした。鉛シート中のＣａ量が０．１
ｗｔ％以下の場合、Ｓｎ量が約２ｗｔ％まではＳｎ量が
多いほど引張強度が増加することが一般的に知られてい
る。正極用鉛シートのＳｎ量を多くし、厚みも大きくし
たのはシートの強度および耐食性を上げるためである。The alloy composition of the lead sheet used for the expanded lattice of the positive electrode is Pb-0.06 wt% Ca-1.5 wt.
% Sn, the alloy composition of the lead sheet for the negative electrode is Pb-0.06.
wt% Ca-0.5 wt% Sn. Both were manufactured by the cold rolling method, and the thickness was 1.1 mm for the positive electrode and 0.7 mm for the negative electrode. The amount of Ca in the lead sheet is 0.1
It is generally known that when the Sn content is up to about 2 wt%, the tensile strength increases as the Sn content increases, when the Sn content is up to about 2 wt%. The reason for increasing the Sn content and increasing the thickness of the lead sheet for positive electrode is to improve the strength and corrosion resistance of the sheet.
【００１７】これらの鉛シートは、レシプロ方式による
エキスパンド機により、図２に示した形状に展開・切断
を行い格子を作製した。格子形状は上部、下部の網状部
が密で、中央部が粗、さらに網状部と上部額縁との接続
部が他の接続部に比べて広くとったものとした。これ
は、格子の電気抵抗や強度を少しでも上げるためで、公
知の方法である。格子寸法は縦１００ｍｍ、横１００ｍ
ｍの大きさとした。今回はレシプロ方式により格子を作
製したが、ロータリー展開によってももちろんかまわな
い。These lead sheets were developed and cut into the shape shown in FIG. 2 by an expander of the reciprocating system to produce a grid. The lattice shape was such that the upper and lower mesh portions were dense, the central portion was rough, and the connecting portion between the mesh portion and the upper frame was wider than the other connecting portions. This is a known method in order to raise the electric resistance and strength of the lattice as much as possible. Lattice size is 100 mm long and 100 m wide
The size is m. This time, the grid was made by the reciprocating method, but of course it does not matter if it is developed by rotary.
【００１８】鉛シートの両面は、展開前にブラッシング
により粗面化処理されている。一般に圧延シートの表面
は、平滑であるために極板としたときに格子と活物質の
密着性が悪くなる。粗面化処理することでこの密着性が
向上し、活物質が脱落しにくいエキスパンド格子とする
ことができる。Both surfaces of the lead sheet are roughened by brushing before spreading. In general, the surface of the rolled sheet is smooth, so that when it is used as an electrode plate, the adhesion between the lattice and the active material deteriorates. By the roughening treatment, this adhesion is improved, and an expanded lattice in which the active material does not easily fall off can be obtained.
【００１９】正極用ペーストは、Ｙ−ＰｂＯが７０〜８
０％、金属鉛を３０〜２０％含む鉛粉に少量の鉛丹を添
加した原料１ｋｇに対して、比重１．１７の硫酸を０．
２リットルの割合で添加・練こうしたものを用いた。正
極ペーストは、一般的に添加する硫酸の液量が少ないほ
ど活物質密度が高くなるため機械的に強くなり、寿命が
長くなることが知られている。エキスパンド格子では、
活物質が脱落しやすいことから、硫酸の液量は０．３リ
ットル以下とするのが望ましい。The positive electrode paste contains Y-PbO of 70 to 8
To 1 kg of a raw material obtained by adding a small amount of lead tin to a lead powder containing 0% and metallic lead of 30 to 20%, sulfuric acid having a specific gravity of 1.17 was added to 0.1%.
Add and knead at a rate of 2 liters. It is known that the positive electrode paste is generally mechanically strong and has a long life because the active material density increases as the amount of sulfuric acid added decreases. In the expanded lattice,
The liquid amount of sulfuric acid is preferably 0.3 liters or less because the active material is easily dropped off.
【００２０】ペーストを充填した極板は、７０℃、湿度
９６％の恒温恒湿槽に１８時間入れて熟成を行った。高
温、高湿の雰囲気中では、活物質中に四塩基性硫酸鉛が
生成し、極板寿命が向上するといわれている。しかし、
四塩基性硫酸鉛の生成量が多くなりすぎると、化成が困
難になってしまう。従って、鉛粉に添加する硫酸イオン
の量を制限して四塩基性硫酸鉛の生成量を抑制する。硫
酸イオンの量は、今回は鉛粉１ｋｇに対して５．６ｗｔ
％としたが、多くても６ｗｔ％程度とするのが望まし
い。The electrode plate filled with the paste was aged in a thermo-hygrostat at 70 ° C. and a humidity of 96% for 18 hours. It is said that tetrabasic lead sulfate is generated in the active material in an atmosphere of high temperature and high humidity to improve the life of the electrode plate. But,
If the amount of tetrabasic lead sulfate produced is too large, chemical conversion will become difficult. Therefore, the amount of sulfate ions added to the lead powder is limited to suppress the amount of tetrabasic lead sulfate produced. The amount of sulfate ion is 5.6 wt for 1 kg of lead powder this time.
%, But at most about 6 wt% is desirable.
【００２１】負極板は、自動車用鉛電池に通常用いられ
ているペーストを格子に充填して作製した。The negative electrode plate was prepared by filling a grid with a paste usually used in lead batteries for automobiles.
【００２２】次に正極板を、袋状の微孔性ポリエチレン
セパレータに入れた。正極板に当接する面にはリブが形
成されている。セパレータはポリエチレンシートを２つ
折りにし、両サイドを一対の歯車により圧着（メカニカ
ルシール）することにより作製した。メカニカルシール
は、従来から米国のテクマック社などが行っており、当
業者間では一般的に知られている手法である。もちろん
負極板をセパレータに入れてもかまわないが、その場合
にはリブ面を逆に（正極板に当接）して使用する。リブ
を正極に当接する理由は、正極板の酸化作用によるセパ
レータの破損をおこりにくくするためである。Next, the positive electrode plate was put into a bag-shaped microporous polyethylene separator. A rib is formed on the surface that contacts the positive electrode plate. The separator was produced by folding a polyethylene sheet in two and crimping (mechanical sealing) both sides with a pair of gears. The mechanical seal has been performed by Tekumac Corporation in the United States, etc., and is a method generally known to those skilled in the art. Of course, the negative electrode plate may be put in the separator, but in that case, the rib surface is used in reverse (abutting on the positive electrode plate). The reason why the rib is brought into contact with the positive electrode is to prevent the separator from being damaged due to the oxidation action of the positive electrode plate.
【００２３】セパレータに入れた正極板５枚、負極板６
枚を交互に重ね合わせ、集電耳をＣＯＳ、またはバーナ
ー溶接することでエレメントを作製した。６個のエレメ
ントを電槽に挿入し、押し出し電気抵抗溶接によりセル
間接続を行い、ふたを溶着して３６Ｂ２０（１２Ｖ、２
８Ａｈ／５ｈＲ）の電池を組み立てた。Five positive plates and six negative plates placed in a separator
An element was produced by alternately stacking the sheets and welding the current collecting ears by COS or burner welding. Insert the 6 elements into the battery case, connect the cells by extrusion electric resistance welding, and weld the lid to 36B20 (12V, 2V).
A battery of 8Ah / 5hR) was assembled.
【００２４】この電池に電解液として硫酸を注入し、電
槽化成を行った。通電は最初１Ａで１時間、次に１０Ａ
で２０時間というように２ステップで行った。一般に化
成電流密度が大きいと、正極板の化成効率が悪いことか
ら、化成初期において格子と活物質界面での酸素ガス発
生が激しくなり、該界面に隙間が生じやすくなる。隙間
が生じると、放電時に濃度の高い硫酸が浸入し、不働態
層が形成して早期に容量低下することがある。化成初期
の電流を小さくすることで、このガス発生による隙間の
形成をおこりにくくでき、早期容量低下を防止すること
ができる。１ステップ目の電流は正極板に対して０．０
５〜０．５Ａ／ｄｍ2 、電気量は正極活物質の理論化成
電気量の１〜５０％とするのが望ましい。化成終了後の
電解液比重は１．２８０とした。Sulfuric acid was injected into this battery as an electrolytic solution to form a battery case. Energization is 1A for 1 hour, then 10A
It was done in 2 steps like 20 hours. In general, when the formation current density is large, the formation efficiency of the positive electrode plate is poor, so that oxygen gas is strongly generated at the interface between the lattice and the active material in the early stage of formation, and a gap is likely to be formed at the interface. If a gap is formed, high-concentration sulfuric acid may infiltrate during discharge, and a passivation layer may be formed to reduce the capacity early. By reducing the electric current in the initial stage of formation, it is possible to prevent the formation of the gap due to the gas generation and prevent the early capacity decrease. The first step current is 0.0 with respect to the positive plate
The amount of electricity is preferably 5 to 0.5 A / dm 2 , and the amount of electricity is preferably 1 to 50% of the theoretical formation electricity of the positive electrode active material. The specific gravity of the electrolytic solution after completion of the chemical conversion was 1.280.
【００２５】次にこれらの電池を高温過充電寿命試験に
供した。電池は７５℃の水槽に入れ、電流４．５Ａで３
０日間の連続通電を行った。通電終了後の５時間率容量
と初期５時間率容量との比較（初期容量を１００とす
る）および正極板の変形量の測定を行った。結果を表２
に示した。Next, these batteries were subjected to a high temperature overcharge life test. Batteries are placed in a water tank at 75 ° C, and current is 4.5A
Continuous energization was performed for 0 days. The 5 hour rate capacity after completion of energization and the initial 5 hour rate capacity were compared (the initial capacity is 100) and the deformation amount of the positive electrode plate was measured. The results are shown in Table 2.
It was shown to.
【００２６】[0026]
【表２】 [Table 2]
【００２７】集電耳位置が１／１０Ｗの電池Ｎｏ．１
は、正極板が著しく変形して短絡していた。電池Ｎｏ．
２、３、４では多少変形がみられたものの、短絡はみら
れなかった。ストラップの厚みが３ｍｍと薄い電池Ｎ
ｏ．５は、正極板のみならずストラップも変形してい
た。ストラップ厚みが５ｍｍの電池Ｎｏ．６では、極板
の変形が少なく、ストラップの変形は全くみられなかっ
た。バーナー溶接した電池Ｎｏ．７は、セル間接続部と
ストラップとの間の部分が変形していた［図３
（ｂ）］。Battery No. 1 having a collecting ear position of 1/10 W 1
The positive electrode plate was significantly deformed and short-circuited. Battery No.
Although there was some deformation in Nos. 2, 3, and 4, no short circuit was observed. Battery N with a thin strap of 3 mm
o. In No. 5, not only the positive electrode plate but also the strap was deformed. Battery No. with a strap thickness of 5 mm In No. 6, the electrode plate was little deformed, and the strap was not deformed at all. Burner welded battery No. In No. 7, the portion between the cell connecting portion and the strap was deformed [Fig.
(B)].
【００２８】これらの結果から、集電耳の位置は２／１
０Ｗ（１／５Ｗ）以上、ＣＯＳ溶接品、さらに好ましく
はストラップ厚みが４ｍｍ以上、とすれば極板の変形や
ストラップの変形などを抑えることができ、そのため電
池性能も向上することがわかった。From these results, the position of the current collecting ear is 2/1.
It has been found that when the thickness is 0 W (1/5 W) or more, the COS welded product is more preferable, and the strap thickness is 4 mm or more, it is possible to suppress the deformation of the electrode plate, the deformation of the strap, and the like, and thus improve the battery performance.
【００２９】[0029]
【発明の効果】以上、本文中で述べたように、本発明に
よればエキスパンド格子を正および負極板に用いた場合
でも優れた寿命性能の電池が得られ、その工業的価値は
甚だ大なるものである。As described above, according to the present invention, a battery having an excellent life performance can be obtained even when the expanding lattice is used for the positive and negative plates, and its industrial value is extremely large. It is a thing.
【図１】本発明による電池の模式図FIG. 1 is a schematic diagram of a battery according to the present invention.
【図２】エキスパンド格子の一例を示す図FIG. 2 is a diagram showing an example of an expanded lattice.
【図３】バーナー溶接ストラップの模式図および寿命後
の状態を示す図FIG. 3 is a schematic view of the burner welding strap and a view showing a state after the life of the strap.
【図４】鋳造格子の一例を示す図FIG. 4 is a diagram showing an example of a casting grid.
１．集電耳 ２．ストラップ ３．セル間接続部 ４．上部額縁 ５．網状部 1. Current collecting ear 2. Strap 3. Inter-cell connection section 4. Upper frame 5. Net part
Claims (2)
製した格子にペーストを充填した正および負極板を備え
た鉛蓄電池において、該正および負極板の集電耳部のセ
ンター位置が極板幅Ｗに対して端から１／５Ｗ以上４／
５Ｗ以下であり、同極性の集電耳部を接続するストラッ
プはキャスト・オン・ストラップ法により形成されたも
のであり、かつセル間接続部のセンター位置と集電耳部
のセンター位置とを一致させたことを特徴とする鉛蓄電
池。1. A lead-acid battery having positive and negative electrodes in which a grid is formed by expanding a lead alloy sheet and filled with paste, and the center position of the current collecting ears of the positive and negative plates is the electrode plate width W. From the end 1 / 5W or more 4 /
The strap for connecting the current collecting ears of 5 W or less and having the same polarity is formed by the cast-on-strap method, and the center position of the cell-to-cell connecting part matches the center position of the current collecting ears. Lead acid battery characterized by having been made.
上であることを特徴とする請求項１記載の鉛蓄電池。2. The lead acid battery according to claim 1, wherein the formed strap has a thickness of 4 mm or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12456694A JP3637603B2 (en) | 1994-05-12 | 1994-05-12 | Lead acid battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12456694A JP3637603B2 (en) | 1994-05-12 | 1994-05-12 | Lead acid battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07307148A true JPH07307148A (en) | 1995-11-21 |
| JP3637603B2 JP3637603B2 (en) | 2005-04-13 |
Family
ID=14888658
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12456694A Expired - Lifetime JP3637603B2 (en) | 1994-05-12 | 1994-05-12 | Lead acid battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3637603B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002222662A (en) * | 2001-01-26 | 2002-08-09 | Matsushita Electric Ind Co Ltd | Lead storage battery |
| JP2004119106A (en) * | 2002-09-25 | 2004-04-15 | Matsushita Electric Ind Co Ltd | Control valve lead storage battery |
| CN105990584A (en) * | 2015-01-30 | 2016-10-05 | 松下蓄电池(沈阳)有限公司 | Grid, pole plate and pole plate group used for lead storage battery, and lead storage battery |
-
1994
- 1994-05-12 JP JP12456694A patent/JP3637603B2/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002222662A (en) * | 2001-01-26 | 2002-08-09 | Matsushita Electric Ind Co Ltd | Lead storage battery |
| JP2004119106A (en) * | 2002-09-25 | 2004-04-15 | Matsushita Electric Ind Co Ltd | Control valve lead storage battery |
| CN105990584A (en) * | 2015-01-30 | 2016-10-05 | 松下蓄电池(沈阳)有限公司 | Grid, pole plate and pole plate group used for lead storage battery, and lead storage battery |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3637603B2 (en) | 2005-04-13 |
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