JP3042150B2 - Manufacturing method of grid for lead-acid battery - Google Patents
Manufacturing method of grid for lead-acid batteryInfo
- Publication number
- JP3042150B2 JP3042150B2 JP4066781A JP6678192A JP3042150B2 JP 3042150 B2 JP3042150 B2 JP 3042150B2 JP 4066781 A JP4066781 A JP 4066781A JP 6678192 A JP6678192 A JP 6678192A JP 3042150 B2 JP3042150 B2 JP 3042150B2
- Authority
- JP
- Japan
- Prior art keywords
- thin film
- lead
- alloy
- expanded
- 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 - Lifetime
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 Electrode Carriers And Collectors (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、鉛蓄電池のとくにその
エキスパンド格子体の製造法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lead-acid battery, and more particularly to a method for producing an expanded grid.
【０００２】[0002]
【従来の技術】従来、鉛蓄電池用の格子体としては鉛−
アンチモン−ヒ素（Ｐｂ−Ｓｂ−Ａｓ）系合金が用いら
れていたが、この合金を格子体に用いた電池では過充電
による電解液の減少やアンチモン（Ｓｂ）による自己放
電の問題があり、近年、鉛−カルシウム−錫（Ｐｂ−Ｃ
ａ−Ｓｎ）系合金が格子体として用いられるようになっ
た。2. Description of the Related Art Conventionally, lead-acid batteries have been used as lead
Antimony-arsenic (Pb-Sb-As) -based alloys have been used. However, batteries using this alloy as a lattice have problems of a decrease in electrolyte due to overcharge and self-discharge due to antimony (Sb). , Lead-calcium-tin (Pb-C
a-Sn) -based alloys have come to be used as lattices.
【０００３】Ｐｂ−Ｃａ−Ｓｎ合金を格子体に用いた鉛
蓄電池はＰｂ−Ｓｂ−Ａｓ合金を格子体に用いた鉛蓄電
池に比べ、電解液の減少や自己放電を防止することがで
き、メンテナンスフリー化に適しているが、過放電放置
後の充電受入性や深い充放電を行うサイクル寿命特性に
は問題があった。[0003] A lead-acid battery using a Pb-Ca-Sn alloy for a grid can prevent a decrease in electrolyte and self-discharge as compared with a lead-acid battery using a Pb-Sb-As alloy for a grid. It is suitable for freeing, but has problems in charge acceptability after overdischarge standing and cycle life characteristics for deep charge / discharge.
【０００４】これらの原因は、格子体と活物質との界面
に不動態膜が生成されることにあるが、この問題を解決
するために格子体の表面にＳｎやＳｂを多く含む層を設
ける技術が提案されている。具体的には、鉛−カルシウ
ム−錫（Ｐｂ−Ｃａ−Ｓｎ）系合金の連続鋳造体の片面
に鉛−錫（Ｐｂ−Ｓｎ）あるいは鉛−錫−アンチモン
（Ｐｂ−Ｓｎ−Ｓｂ）合金の薄膜を重ねて、これらを冷
間圧延して一体化した鉛合金シートを作製し、この鉛合
金シートをダイスまたはロータリーカッターでエキスパ
ンド加工してエキスパンド格子体を作製するものであ
る。[0004] These problems are caused by the formation of a passivation film at the interface between the lattice and the active material. To solve this problem, a layer containing a large amount of Sn or Sb is provided on the surface of the lattice. Technology has been proposed. Specifically, a thin film of a lead-tin (Pb-Sn) or lead-tin-antimony (Pb-Sn-Sb) alloy is formed on one surface of a continuous cast body of a lead-calcium-tin (Pb-Ca-Sn) alloy. Are stacked and cold rolled to produce an integrated lead alloy sheet, and the lead alloy sheet is expanded by a die or a rotary cutter to produce an expanded lattice.
【０００５】[0005]
【発明が解決しようとする課題】しかしながら、Ｐｂ−
Ｃａ−Ｓｎ合金の連続鋳造体の片面にＰｂ−Ｓｎあるい
はＰｂ−Ｓｎ−Ｓｂ合金を重ねて圧延一体化させ、これ
をエキスパンド加工した格子体を電池に用いると、電池
特性に大きなバラツキが生じていた。However, Pb-
When a Pb-Sn or Pb-Sn-Sb alloy is rolled and integrated on one side of a continuous cast body of a Ca-Sn alloy and rolled and integrated, and used for a battery, a large variation occurs in battery characteristics. Was.
【０００６】この原因として、エキスパンド加工の方法
が図２に示すような方法であることが考えられる。As a cause of this, it is conceivable that the expanding method is a method as shown in FIG.
【０００７】すなわち、図２に示したようにＰｂ−Ｃａ
−Ｓｎ合金の連続鋳造体１の片面にＰｂ−Ｓｎあるいは
Ｐｂ−Ｓｎ−Ｓｂ合金の薄膜２を重ねてこれらを冷間圧
延して鋳造体と薄膜が一体化した鉛合金シートを作製し
た後、この鉛合金シートにおいて薄膜２を一体化した面
とは反対の面からダイスあるいはロータリーカッター３
によりエキスパンド加工するものである。That is, as shown in FIG.
After forming a thin film 2 of Pb-Sn or Pb-Sn-Sb alloy on one surface of a continuous cast body 1 of a -Sn alloy and cold rolling these to form a lead alloy sheet in which the cast body and the thin film are integrated, In this lead alloy sheet, a die or a rotary cutter 3 is used from the surface opposite to the surface on which the thin film 2 is integrated.
Expand processing is performed.
【０００８】これにより、エキスパンド加工した鋳造体
４の表面ではエキスパンド加工時に薄膜５の剥離６が起
こり、部分的に格子体の表面に薄膜が一体化されていな
い面が生じて格子体における薄膜の効果にバラツキが生
じたと考えられる。As a result, peeling 6 of the thin film 5 occurs on the surface of the expanded casting 4 at the time of the expanding processing, and a surface where the thin film is not integrated is partially formed on the surface of the lattice, and the thin film in the lattice is formed. It is considered that the effect varied.
【０００９】本発明はこのような課題を解決するもので
あり、Ｐｂ−Ｃａ−Ｓｎ合金の連続鋳造体の片面にＰｂ
−ＳｎあるいはＰｂ−Ｓｎ−Ｓｂ合金の薄膜を重ね合わ
せ、これらを一体化した鉛合金シートにダイスあるいは
ロータリーカッターを挿入してエキスパンド格子体を作
製するときに、薄膜が格子体から剥離することによる薄
膜の効果のバラツキを防止するとともに格子体に対する
薄膜の効果を増大させることができる鉛蓄電池用格子体
の製造法を提供するものである。The present invention has been made in order to solve such a problem, and Pb-Ca-Sn alloy has a continuous cast Pb on one side.
When a thin film of -Sn or Pb-Sn-Sb alloy is superimposed and a die or a rotary cutter is inserted into a lead alloy sheet in which these are integrated to produce an expanded lattice, the thin film is peeled off from the lattice. An object of the present invention is to provide a method of manufacturing a grid for a lead-acid battery, which can prevent variations in the effect of the thin film and increase the effect of the thin film on the grid.
【００１０】[0010]
【課題を解決するための手段】このような課題を解決す
るために、本発明の鉛蓄電池用エキスパンド格子体の製
造法は、鉛−カルシウム−錫（Ｐｂ−Ｃａ−Ｓｎ）合金
の連続鋳造体の片面に鉛−錫（Ｐｂ−Ｓｎ）あるいは鉛
−錫−アンチモン（Ｐｂ−Ｓｎ−Ｓｂ）合金の薄膜を重
ね合わせ、これらを冷間圧延して薄膜と鋳造体が一体化
した鉛合金シートを作製した後、この鉛合金シートを前
記薄膜が一体化された面から他面に向けてダイスまたは
ロータリーカッターでエキスパンド加工するものであ
る。In order to solve the above-mentioned problems, a method for producing an expanded lattice body for a lead-acid battery according to the present invention comprises a continuous casting of a lead-calcium-tin (Pb-Ca-Sn) alloy. A thin film of a lead-tin (Pb-Sn) or lead-tin-antimony (Pb-Sn-Sb) alloy is overlaid on one side of the above, and these are cold-rolled to form a lead alloy sheet in which the thin film and the casting are integrated. After the production, the lead alloy sheet is expanded from a surface where the thin film is integrated to another surface by a die or a rotary cutter.
【００１１】[0011]
【作用】本発明の鉛蓄電池用エキスパンド格子体の製造
法は、Ｐｂ−Ｃａ−Ｓｎ合金の連続鋳造体の片面にＰｂ
−ＳｎまたはＰｂ−Ｓｎ−Ｓｂ合金の薄膜を重ね合わ
せ、冷間圧延して一体化した鉛合金シートを作製した
後、この鉛合金シートを薄膜が一体化された面から他面
に向けてダイスまたはロータリーカッターでエキスパン
ド加工するので、ダイスやカッターが薄膜の一体化され
た面から他面に向けて切断を行い、その切断面を展開す
るにつれて、薄膜が本来、薄膜の付与されていない鋳造
体の切断面を包み込むように覆うため、薄膜の効果の範
囲を拡大することができる。The method for producing an expanded lattice body for a lead-acid battery according to the present invention is characterized in that Pb-Ca-Sn alloy
-Sn or Pb-Sn-Sb alloy thin films are stacked and cold rolled to produce an integrated lead alloy sheet, and the lead alloy sheet is diced from the surface where the thin film is integrated to the other surface. Or because the rotary cutter expands, the die or cutter cuts from the integrated surface of the thin film to the other surface, and as the cut surface is expanded, the thin film is originally a cast body without a thin film In this case, the range of the effect of the thin film can be expanded.
【００１２】また、このエキスパンド加工時に薄膜が連
続鋳造体に食い込むように密着するため、薄膜が連続鋳
造体上で部分的に剥離することもない。In addition, since the thin film comes into close contact with the continuous casting during the expanding process, the thin film does not peel off partially on the continuous casting.
【００１３】したがって、本発明の製造法ではエキスパ
ンド格子体における薄膜の効果の範囲を拡大できるとと
もに、薄膜の部分的な剥離による薄膜の効果のバラツキ
を防止することができるため、鉛蓄電池の電池特性のバ
ラツキを防止することができる。Therefore, in the manufacturing method of the present invention, the range of the effect of the thin film in the expanded lattice can be expanded, and the effect of the thin film due to partial peeling of the thin film can be prevented from being varied. Variation can be prevented.
【００１４】とくに、薄膜にＰｂ−Ｃａ−Ｓｂ合金を用
いた場合には、Ｓｂを含むために薄膜の延展性が乏しく
なり、薄膜と鋳造体の一体化は困難であったが、本発明
の製造法では薄膜を鋳造体に食い込ませることにより薄
膜と鋳造体の密着性を高め、薄膜が鋳造体から剥離する
ことなく一体化させることができる。In particular, when a Pb-Ca-Sb alloy is used for the thin film, the thin film has poor ductility due to the inclusion of Sb, and it is difficult to integrate the thin film and the cast body. In the manufacturing method, the adhesion between the thin film and the casting is improved by making the thin film bite into the casting, and the thin film can be integrated without peeling from the casting.
【００１５】[0015]
【実施例】以下、本発明の実施例を図面を参照にしなが
ら説明する。Embodiments of the present invention will be described below with reference to the drawings.
【００１６】図１に本発明の鉛蓄電池用エキスパンド格
子体の製造法を示す。図１に示したように、本発明の鉛
蓄電池用エキスパンド格子体の製造法はＣａを０．０７
ｗｔ％、Ｓｎを０．５ｗｔ％含むＰｂ−Ｃａ−Ｓｎ合金
の連続鋳造体１の片面に、Ｓｎを５．０ｗｔ％、Ｓｂを
５．０ｗｔ％含むＰｂ−Ｓｎ−Ｓｂ合金の薄膜を重ね合
わせてこれらを冷間圧延して薄膜と鋳造体が一体化した
鉛合金シートを作製する。そしてこの鉛合金シートを前
記薄膜が一体化された面から他面に向けてダイスまたは
ロータリーカッターでエキスパンド加工する。FIG. 1 shows a method of manufacturing an expanded lattice body for a lead storage battery according to the present invention. As shown in FIG. 1, the method for producing an expanded lattice body for a lead storage battery of the present invention has a Ca content of 0.07.
A thin film of a Pb-Sn-Sb alloy containing 5.0 wt% of Sn and 5.0 wt% of Sb is superimposed on one surface of a continuous cast body 1 of a Pb-Ca-Sn alloy containing 0.5 wt% of Sn and 0.5 wt% of Sn. These are cold rolled to produce a lead alloy sheet in which the thin film and the casting are integrated. The lead alloy sheet is expanded by a die or a rotary cutter from the surface where the thin film is integrated to the other surface.
【００１７】これにより、薄膜２が鋳造体１の切断面を
包み込むように覆って鋳造体１に食い込むため、薄膜の
効果を拡大することができるとともに薄膜と鋳造体の密
着性を高めることができる。As a result, the thin film 2 covers the cut surface of the casting 1 so as to cover the cut surface of the casting 1 and bites into the casting 1, so that the effect of the thin film can be expanded and the adhesion between the thin film and the casting can be improved. .
【００１８】したがって、エキスパンド加工した鋳造体
４の片面をエキスパンド加工した薄膜５が完全に被覆す
るので薄膜の剥離はなく、格子体における薄膜の効果の
バラツキを防止することができる。Accordingly, since the expanded thin film 5 completely covers one side of the expanded cast body 4, the thin film does not peel off, and the effect of the thin film on the lattice can be prevented from being varied.
【００１９】次に、本発明の製造法により作製したエキ
スパンド格子体を用いた鉛蓄電池と図２に示したような
製造法により作製したエキスパンド格子体を用いた鉛蓄
電池を各５０個作製し、充放電サイクル寿命試験を行っ
た。Next, 50 lead storage batteries each using the expanded lattice produced by the production method of the present invention and 50 lead storage batteries using the expanded lattice produced by the production method as shown in FIG. A charge / discharge cycle life test was performed.
【００２０】ここで、電池は公称容量４８Ａｈ（５時間
率）とし、充放電サイクル寿命試験は、４０℃において
充電を５Ａの電流で５時間行い、放電を２０Ａの電流で
１時間行ってこれを１サイクルとした。Here, the battery has a nominal capacity of 48 Ah (5 hour rate), and the charge / discharge cycle life test is performed at 40 ° C. at a current of 5 A for 5 hours and at a current of 20 A for 1 hour. One cycle.
【００２１】充放電サイクル寿命試験の結果を図３に示
す。図３の（Ｂ）に示したように、図２に示した製造法
により作製したエキスパンド格子体を用いた鉛蓄電池で
は充放電サイクル寿命が１５０サイクルから３５０サイ
クルまで大きくばらついていた。しかし本発明の製造法
により作製したエキスパンド格子体を用いた鉛蓄電池で
は、図３（Ａ）に示すように充放電サイクル寿命は３０
０〜３５０サイクルにほぼ一定していた。FIG. 3 shows the results of the charge / discharge cycle life test. As shown in FIG. 3B, in the lead-acid battery using the expanded lattice body manufactured by the manufacturing method shown in FIG. 2, the charge / discharge cycle life greatly varied from 150 cycles to 350 cycles. However, in the lead-acid battery using the expanded lattice body manufactured by the manufacturing method of the present invention, the charge / discharge cycle life is 30 as shown in FIG.
It was almost constant between 0 and 350 cycles.
【００２２】これは、本発明の鉛蓄電池用エキスパンド
格子体の製造法では、Ｐｂ−Ｃａ−Ｓｎ合金の鋳造体と
Ｐｂ−Ｓｎ−Ｓｂ合金の薄膜の密着性が高められ、格子
体上での薄膜の部分的な剥離を防止することができたの
で、格子体における薄膜の効果のバラツキを防止するこ
とができ、充放電サイクル寿命特性のバラツキを低減す
ることができたためと考えられる。This is because, in the method for producing an expanded lattice body for a lead-acid battery according to the present invention, the adhesion between the cast Pb-Ca-Sn alloy and the thin film of the Pb-Sn-Sb alloy is enhanced, and It is considered that the partial separation of the thin film was prevented, so that the variation in the effect of the thin film in the lattice body could be prevented, and the variation in the charge-discharge cycle life characteristics could be reduced.
【００２３】[0023]
【発明の効果】以上のように、本発明の鉛蓄電池用エキ
スパンド格子体の製造法では、鉛−カルシウム−錫（Ｐ
ｂ−Ｃａ−Ｓｎ）合金の連続鋳造体の片面に鉛−錫（Ｐ
ｂ−Ｓｎ）あるいは鉛−錫−アンチモン（Ｐｂ−Ｓｎ−
Ｓｂ）合金の薄膜を重ね合わせ、冷間圧延して鋳造体と
薄膜が一体化した鉛合金シートを作製した後、この鉛合
金シートを薄膜が一体化された面から他面に向けてダイ
スまたはロータリーカッターでエキスパンド加工するこ
とにより格子体を作製するものであるので、エキスパン
ド加工するときに薄膜が鋳造体の切断面を包み込むよう
に覆って鋳造体に食い込むため、エキスパンド格子体上
での薄膜の効果を増大させることができる。しかも加工
時に薄膜の剥離を防止することができて、格子体上での
薄膜の効果のバラツキを防止することができる。したが
って、格子体における薄膜の効果のバラツキによる鉛蓄
電池の特性のバラツキを防止することができる。As described above, according to the method for producing an expanded lattice body for a lead storage battery of the present invention, lead-calcium-tin (P
b-Ca-Sn) alloy on one side of a continuous cast body of lead-tin (P
b-Sn) or lead-tin-antimony (Pb-Sn-
Sb) After laminating the alloy thin films and cold rolling them to produce a lead alloy sheet in which the casting and the thin film are integrated, the lead alloy sheet is diced or diced from the surface where the thin film is integrated to the other surface. Since the grid is made by expanding with a rotary cutter, the thin film covers the cut surface of the casting and bites into the casting when expanding, so the thin film on the expanded grid is The effect can be increased. In addition, peeling of the thin film during processing can be prevented, and variations in the effect of the thin film on the lattice can be prevented. Therefore, it is possible to prevent variations in the characteristics of the lead storage battery due to variations in the effect of the thin film in the lattice body.
【図１】本発明の鉛蓄電池用エキスパンド格子体の製造
法を示す図FIG. 1 is a diagram showing a method for producing an expanded lattice body for a lead storage battery of the present invention.
【図２】薄膜が付与されている面と反対の面からダイス
またはロータリーカッターでエキスパンド加工する製造
法を示す図FIG. 2 is a diagram showing a manufacturing method in which a die or a rotary cutter is used to expand a surface opposite to a surface on which a thin film is provided.
【図３】（Ａ）本発明の製造法により作製したエキスパ
ンド格子体を用いた鉛蓄電池のサイクル寿命特性を示す
図 （Ｂ）従来の製造法により作製したエキスパンド格子体
を用いた鉛蓄電池のサイクル寿命特性を示す図FIG. 3A shows a cycle life characteristic of a lead storage battery using an expanded grid manufactured by the manufacturing method of the present invention. FIG. 3B shows a cycle of a lead storage battery using an expanded grid manufactured by a conventional manufacturing method. Diagram showing life characteristics
１ Ｐｂ−Ｃａ−Ｓｎ合金の連続鋳造体 ２ Ｐｂ−Ｓｎ−Ｓｂ合金の薄膜 ３ ダイスまたはロータリーカッター ４ エキスパンド加工した連続鋳造体 ５ エキスパンド加工した薄膜 ６ 薄膜の剥離 DESCRIPTION OF SYMBOLS 1 Continuous cast of Pb-Ca-Sn alloy 2 Thin film of Pb-Sn-Sb alloy 3 Die or rotary cutter 4 Continuous cast body expanded 5 Expanded thin film 6 Thin film peeling
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭60−80599（ＪＰ，Ａ) 特開 昭63−237358（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) H01M 4/74 H01M 4/68 B21D 31/04 ────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-60-80599 (JP, A) JP-A-63-237358 (JP, A) (58) Fields investigated (Int. Cl. 7 , DB name) H01M 4/74 H01M 4/68 B21D 31/04
Claims (1)
合金の連続鋳造体の片面に鉛−錫（Ｐｂ−Ｓｎ）あるい
は鉛−錫−アンチモン（Ｐｂ−Ｓｎ−Ｓｂ）合金の薄膜
を重ね合わせ、これらを冷間圧延して薄膜と鋳造体が一
体化した鉛合金シートを作製した後、この鉛合金シート
を、前記薄膜が一体化された面から他面に向けてダイス
またはロータリーカッターでエキスパンド加工する鉛蓄
電池用格子体の製造法。1. Lead-calcium-tin (Pb-Ca-Sn)
A thin film of a lead-tin (Pb-Sn) or lead-tin-antimony (Pb-Sn-Sb) alloy is overlaid on one side of a continuous casting of the alloy, and these are cold-rolled to integrate the thin film and the casting. A method for manufacturing a grid for a lead-acid battery, in which, after producing a lead alloy sheet, the lead alloy sheet is expanded from a surface where the thin film is integrated to another surface with a die or a rotary cutter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4066781A JP3042150B2 (en) | 1992-03-25 | 1992-03-25 | Manufacturing method of grid for lead-acid battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4066781A JP3042150B2 (en) | 1992-03-25 | 1992-03-25 | Manufacturing method of grid for lead-acid battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05275085A JPH05275085A (en) | 1993-10-22 |
| JP3042150B2 true JP3042150B2 (en) | 2000-05-15 |
Family
ID=13325757
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4066781A Expired - Lifetime JP3042150B2 (en) | 1992-03-25 | 1992-03-25 | Manufacturing method of grid for lead-acid battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3042150B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10257186A1 (en) * | 2002-12-06 | 2004-07-15 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Process for the production of coated expanded metals and the use of such metals as current conductors in electrical engineering components |
-
1992
- 1992-03-25 JP JP4066781A patent/JP3042150B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH05275085A (en) | 1993-10-22 |
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