JPH076766A - Lead-acid battery - Google Patents

Lead-acid battery

Info

Publication number
JPH076766A
JPH076766A JP5168461A JP16846193A JPH076766A JP H076766 A JPH076766 A JP H076766A JP 5168461 A JP5168461 A JP 5168461A JP 16846193 A JP16846193 A JP 16846193A JP H076766 A JPH076766 A JP H076766A
Authority
JP
Japan
Prior art keywords
ear
strap
corrosion
lead
base
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
Application number
JP5168461A
Other languages
Japanese (ja)
Other versions
JP3417976B2 (en
Inventor
Masaki Okumura
正樹 奥村
Katsuhiro Takahashi
勝弘 高橋
Yasuhiko Suzui
康彦 鈴井
Nobuyuki Takami
宣行 高見
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP16846193A priority Critical patent/JP3417976B2/en
Publication of JPH076766A publication Critical patent/JPH076766A/en
Application granted granted Critical
Publication of JP3417976B2 publication Critical patent/JP3417976B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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)
  • Connection Of Batteries Or Terminals (AREA)

Abstract

PURPOSE:To restrict the discontinuity due to the corrosion of a lug itself, which is exposed at a melted area, and to improve the safety of a maintenance-free lead-acid battery by providing a base material organization layer at a part near the base of a lug exposed under a strap. CONSTITUTION:A base material organization layer is provided at a part near the base of a lug 2, which is exposed under a strap, so as to prevent the corrosion due to the grain boundary of rough crystals generated by the heat at the time of forming the strap. Namely, an organization 8, which is mainly formed of fiber crystal nearly equal to a central position H of the height of a lug exposed at a part separated from the strap, is provided in the cross section of the lug 2 in the thickness direction. Corrosion in the disconnecting direction is restricted by the organization 8 to reduce the disconnection due to the corrosion. Namely, corrosion of the lug 2 of a negative electrode made of lead- calcium group alloy and formed by rolling is restricted to improve the reliability and the safety of a lead-acid battery.

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【産業上の利用分野】本発明は、鉛蓄電池に関するもの
であり、さらに詳しくは、シート状鉛合金基材から成型
された格子耳を集合してストラップを形成する構成の鉛
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 a lead storage battery, and more particularly, to an improvement of a lead storage battery having a structure in which lattice ears formed from a sheet-shaped lead alloy base material are assembled to form a strap. Is.

【０００２】[0002]

【従来の技術】鉛蓄電池は、一般に複数枚の同極性の極
板の格子の耳を合金の棚に集合溶接して群棚を構成し製
造される。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
や、極板の耳を櫛状の金型で挟持して上部に耳を突出さ
せた凹部を形成し、この凹部に鉛合金を溶融して流し込
むか、足し鉛の形で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採用されている。2. Description of the Related Art Lead acid batteries are generally manufactured by collectively welding the ears of a grid of a plurality of polar plates of the same polarity to an alloy shelf to form a group shelf. As the method of collective welding, there is a cast-on method in which the ears of the electrode plate group are inverted and inserted into the molten alloy in the mold to solidify, or the ears of the electrode plate are sandwiched by a comb-shaped mold and the ears are projected above. A burning method is used in which a concave portion is formed and a lead alloy is melted and poured into the concave portion, or the lead alloy is melted with a flame together with a part of the ear in the form of lead.

【０００３】[0003]

【発明が解決しようとする課題】この種の構成の鉛蓄電
池においては、電池使用中に負極のストラップが電解液
から露出すると、ストラップの下の耳の付け根の近傍
で、急速に耳自体が腐食し断線するという腐食現象が従
来より散見されていた。さらに、近年になってカルシウ
ム電池やハイブリッド電池などメンテナンスフリー化へ
の取り組みが進み、負極格子に鉛−カルシウム−スズ合
金などのカルシウム合金系の圧延シートなどシート状鉛
合金が機械加工されて採用されるようになって、上記腐
食現象は一層増加する傾向にあることが判ってきた。こ
の現象は、ストラップから露出した領域で起こる腐食現
象であって、一般に対象になる溶接界面腐食と並んで確
率の高い現象である。また、溶接界面の状態を改善しよ
うとして十分熱量を与えるほどこの耳腐食は増加する傾
向にある。In the lead-acid battery of this kind of construction, when the strap of the negative electrode is exposed from the electrolyte during use of the battery, the ear itself is rapidly corroded in the vicinity of the base of the ear under the strap. The corrosion phenomenon of wire breakage has been observed in the past. Furthermore, in recent years, efforts have been made toward maintenance-free applications such as calcium batteries and hybrid batteries, and sheet-shaped lead alloys such as rolled sheets of calcium alloys such as lead-calcium-tin alloys have been machined and adopted for the negative electrode grid. As a result, it has been found that the corrosion phenomenon tends to further increase. This phenomenon is a corrosion phenomenon that occurs in a region exposed from the strap, and is a phenomenon with a high probability as well as generally targeted weld interface corrosion. Further, the ear corrosion tends to increase as a sufficient amount of heat is applied to improve the condition of the weld interface.

【０００４】いずれにしても減少した電解液の上部での
耳の腐食断線は、性能劣化だけでなくスパークの発生に
よる引火破裂にもつながる危険があるので、極力抑制す
ることが必要である。従って、本発明は、この種のスト
ラップにおける溶融領域から露出する耳自体の腐食断線
を抑制し、メンテナンスフリー鉛蓄電池の安全性を高め
ることを目的とする。In any case, the reduced corrosive disconnection of the ears at the top of the electrolytic solution may lead to not only performance deterioration but also ignition and bursting due to the occurrence of sparks, so it is necessary to suppress it as much as possible. Therefore, it is an object of the present invention to suppress corrosion breakage of the ear itself exposed from the melting region in this type of strap, and improve the safety of the maintenance-free lead acid battery.

【０００５】[0005]

【課題を解決するための手段】上記課題を解決する具体
的手段として本発明は、鉛合金の圧延体を耳に持つ複数
枚の負極板の耳を集合した極板群のストラップを備える
構成において、少なくともストラップ下から露出する耳
の付け根近傍において、耳の厚さ方向の断面内に、スト
ラップから離れて露出する耳の高さの中央部とほぼ同等
の繊維状結晶を主体とする基材組織層を備える構造の鉛
蓄電池を提供する。As a concrete means for solving the above problems, the present invention provides a strap of an electrode plate group in which the ears of a plurality of negative electrode plates having a rolled body of lead alloy in the ears are assembled. , At least in the vicinity of the base of the ear exposed from below the strap, in the cross section in the thickness direction of the ear, a base tissue mainly composed of fibrous crystals that is almost the same as the center of the height of the ear exposed away from the strap A lead storage battery having a structure including layers is provided.

【０００６】[0006]

【作用】本発明は、前述の腐食現象のメカニズム、すな
わち圧延によりつくられた耳そのものの繊維状結晶主体
の組織の中に、ストラップ形成時の熱によって粗大な結
晶が生成し、その粒界が腐食に関与するというメカニズ
ム、さらには、同じストラップから露出した耳の連続体
でありながら熱の影響が少ない耳の高さの中央部ではた
とえ腐食の起こりやすい電解液のしみ上がり状態にあっ
ても、腐食が起こりにくいという事実の発見に基づいて
いる。本発明による結晶組織を備えることによって、上
記耳の付け根近傍の厚さ断面方向の断線に至る腐食を抑
制することができる。According to the present invention, the mechanism of the above-mentioned corrosion phenomenon, that is, coarse crystals are generated by the heat at the time of strap formation in the structure of the ears themselves, which is mainly composed of fibrous crystals formed by rolling, and its grain boundaries are The mechanism of being involved in corrosion, and even the continuous body of the ears exposed from the same strap, which is less affected by heat, even in the middle of the height of the ears, even if the electrolyte is prone to corrosion , Based on the discovery of the fact that corrosion is less likely to occur. By providing the crystal structure according to the present invention, it is possible to suppress the corrosion leading to the disconnection in the thickness sectional direction near the root of the ear.

【０００７】[0007]

【実施例】以下、実施例によって本発明を詳細に説明す
る。図１は本発明の組織構成を実現するための一実施例
において、極板の耳に櫛状金型をセットした状態を示す
要部断面側面図である。図２及び図３は本発明のストラ
ップの耳の付け根近傍の結晶組織を拡大した模式図であ
り、図２は耳付け根部が少量のストラップ合金で覆われ
た構成を示し、図３はストラップ付け根部がストラップ
本体の平面部から直接突出した構成例を示している。図
４は従来例において、溶接時の熱に対する管理が不十分
のまま溶接界面を十分に溶接するように加熱して製造さ
れたストラップの耳の付け根近傍の組織の例を示してい
る。The present invention will be described in detail below with reference to examples. FIG. 1 is a cross-sectional side view of essential parts showing a state in which a comb-shaped mold is set on the ears of an electrode plate in one embodiment for realizing the tissue structure of the present invention. 2 and 3 are enlarged schematic views of the crystal structure near the base of the ear of the strap of the present invention, FIG. 2 shows a structure in which the base of the ear is covered with a small amount of strap alloy, and FIG. 3 shows the base of the strap. The structural example in which the part directly protrudes from the flat part of the strap body is shown. FIG. 4 shows an example of a structure in the vicinity of the base of the ear of the strap manufactured by heating so that the welding interface is sufficiently welded while the management for heat during welding is insufficient in the conventional example.

【０００８】これらの図において、１は負極板、２は格
子の耳、３は櫛状金型、４は凹部、５は鉛合金の足し鉛
であり、バーナの火炎で凹部４の合金の全部または一部
を溶解する。また、６は金型冷却管、７は耳の付け根に
設けた金型の切り欠き部であって、本発明の構成を実現
する手段の一例である。８は耳高さｈの中央位置Ｈ近傍
の圧延による繊維状結晶主体の組織、９は熱によって生
成された粗大粒子で、ときには繊維状組織をこえて成長
する。１０はその粒界である。１１は耳付け根の先端部
を覆う少量の覆い部である。ここで、本発明における棚
下から露出する位置とは、Ｋで示した位置であり、覆い
部１１があるときは覆い部の先端を意味する。In these figures, 1 is a negative electrode plate, 2 is a lattice ear, 3 is a comb-shaped die, 4 is a concave portion, 5 is lead alloy lead, and all the alloy of the concave portion 4 is present in the burner flame. Or dissolve a part. Further, 6 is a mold cooling pipe, and 7 is a notch of the mold provided at the base of the ear, which is an example of means for realizing the configuration of the present invention. 8 is a structure mainly composed of fibrous crystals by rolling near the center position H of the ear height h, 9 is coarse particles generated by heat, and sometimes grows beyond the fibrous structure. 10 is the grain boundary. Reference numeral 11 is a small amount of cover for covering the tip of the ear root. Here, the position exposed from under the shelf in the present invention is the position indicated by K, and when the cover 11 is present, it means the tip of the cover.

【０００９】上記の構成において、冷却管６を備えた金
型を用いる場合は、金型に接する耳の付け根は放熱によ
って熱が削減される。また、切り欠き部７を備えた金型
を用いる場合は、熱の履歴の大きい部分を覆い部１１で
覆い、その切り欠き部の溶融熱による熱の履歴は溶融物
が少量に制限されることによって削減される。この他、
表面処理あるいはフラックスや低融点物質の耳表面への
適用によって溶解温度を下げ、熱の履歴を削減する方法
やこれらの組み合わせによって、耳露出部Ｋの近傍に粗
大な組織の生成が少ない組織層８を形成することができ
る。一方、キャストオン方式によるときは、フラックス
や低融点物質などで溶融エネルギを下げる工夫の他、冷
却風や冷却体によって耳から放熱しつつストラップ形成
するなどの方法が有効な手段の例である。In the above-mentioned structure, when a mold provided with the cooling pipe 6 is used, the heat of the base of the ear which is in contact with the mold is reduced by heat radiation. Further, when a mold having the cutout 7 is used, the portion having a large heat history is covered with the cover 11, and the heat history due to the heat of fusion of the cutout is limited to a small amount of the melt. Reduced by. Besides this,
By the method of lowering the melting temperature by applying a surface treatment or a flux or a low melting point substance to the ear surface to reduce the heat history, or a combination thereof, a tissue layer 8 in which a coarse tissue is less likely to be generated in the vicinity of the ear exposed portion K Can be formed. On the other hand, in the case of the cast-on method, a method of forming a strap while radiating heat from the ear with a cooling air or a cooling body is an example of an effective means in addition to a device for reducing the melting energy with a flux or a low melting point substance.

【００１０】鉛−カルシウム系合金の場合、圧延シート
は組成によっては常温環境でも再結晶が起きるが、実際
には１００℃以下での時効硬化過程で発達するデンドラ
イトは、その大きさや数においてストラップの熱で発生
する程度とは比較にならない程穏やかである。また、そ
の粒界も顕微鏡レベルで不鮮明であって、繊維状結晶組
織によって断線方向の腐食は抑制され、腐食断線に寄与
する可能性は極めて少ない。実質的には、耳の高さのお
よそ中央部では時効時の不鮮明な少量のデンドライトが
混在していてもＨ位置でのこの種の腐食は起こらない。
したがって、Ｋ位置より下の露出耳のうち最も熱の影響
を受けたＫ近傍にＨ近傍の組織があれば断線をくいとめ
る効果が生まれる。その層の厚さは多ければ多いほどよ
いが、９０℃以上の厳しい使用温度においてほぼ完全に
断線を抑制するには、耳厚さの１／３以上を占めること
が望ましい。もちろん１００％がＨ位置の組織であれば
好ましいことはいうまでもない。逆に言えば、表面部に
粗大な組織が生成発達しても熱履歴による粗大な粒界が
繊維状組織をこえて耳の表裏の間を連結しなければ、実
質的には断線の確率は極めて小さいと言える。In the case of a lead-calcium alloy, the rolled sheet recrystallizes even in a room temperature environment depending on the composition, but in reality, the dendrite that develops during the age hardening process at 100 ° C. or less has the same size and number as the strap. It is so calm that it cannot be compared with the degree of heat generation. Further, the grain boundaries are also unclear at the microscopic level, and the fibrous crystal structure suppresses corrosion in the disconnection direction, and the possibility of contributing to corrosion disconnection is extremely low. Substantially no such corrosion at the H position occurs in the middle of the ear level, even with a small amount of obscured dendrites during aging.
Therefore, if there is a tissue in the vicinity of H in the vicinity of K that is most affected by heat in the exposed ear below the K position, an effect of suppressing the disconnection is produced. The thicker the layer, the better. However, in order to almost completely prevent disconnection at a severe operating temperature of 90 ° C. or higher, it is desirable that the layer accounts for 1/3 or more of the thickness of the ear. Needless to say, it is preferable that 100% of the structure is in the H position. Conversely, even if a coarse structure is generated and developed on the surface, if the coarse grain boundaries due to heat history do not connect the front and back of the ear beyond the fibrous structure, the probability of disconnection is practically It can be said that it is extremely small.

【００１１】上記の効果をさらに明らかにするために、
耳に鉛−０．１％カルシウム−０．５％スズ合金の圧延
シートを用い、ストラップの足し鉛に鉛−３％スズ合金
を用いた実施例によって得られた構成Ａ，Ｂと図４の従
来の構成Ｃの電池を構成し、正負両極にセルあたり２．
４Ｖを加えて６０℃で３０日の過充電後、ストラップの
付け根部を約１〜３ｍｍ露出するまで液面を下げて８０
℃で過充電を続け、露出部耳断線の確率を調べた。その
結果、従来例では、３週間後３０％の断線発生率であっ
たのに対して、本発明のＡ、Ｂはいずれもこの時点での
断線発生はなかった。なお、エッチングして腐食状況を
顕微鏡で観察したところ、従来例ではＨ位置には存在し
ない大きな粒界に沿って腐食断線した状況が観察され
た。一方、Ａ、ＢではＫ位置の表面近傍にＣ同様の粒界
腐食が進行してはいたが、Ｈ位置近傍と同等の繊維状組
織の中央層のところで大きな粒界が不連続となり、腐食
のさらなる侵入が阻止されていた。In order to further clarify the above effect,
Configurations A and B obtained by the example using a rolled sheet of lead-0.1% calcium-0.5% tin alloy in the ears and lead-3% tin alloy in the lead of the strap and FIG. 1. A battery of the conventional configuration C is configured, and the positive and negative electrodes have 2. cells per cell.
After applying 4V and overcharging at 60 ° C for 30 days, lower the liquid level until the base of the strap is exposed about 1 to 3 mm, and then 80
The overcharge was continued at ℃, and the probability of wire breakage in the exposed part was examined. As a result, in the conventional example, the rate of occurrence of wire breakage was 30% after 3 weeks, whereas in A and B of the present invention, wire breakage did not occur at this point. In addition, when the state of corrosion was observed by a microscope after etching, the state of corrosion breakage along a large grain boundary not existing at the H position in the conventional example was observed. On the other hand, in A and B, although the intergranular corrosion similar to that in C progressed in the vicinity of the surface at the K position, large grain boundaries became discontinuous in the central layer of the fibrous structure equivalent to the vicinity of the H position, resulting in corrosion Further invasion was thwarted.

【００１２】この効果はすでに明らかなように、足し鉛
の合金種類には関係なく、耳の中の組織構造を如何に適
切にするかにかかっており、熱履歴によって大きな粒界
が生成する可能性のある圧延組織の耳を備えた格子を用
いる限り、足し鉛に鉛−アンチモン合金を用いた場合や
その他の合金成分を添加した場合も有効である。また、
本実施例では熱履歴によって最も粗大な結晶粒になりや
すいロール式圧延シートの耳を用いたが、熱履歴により
粗大な組織ができやすいドラム式などのその他のシート
状合金にも有効である。[0012] As is already clear, this effect depends on how to optimize the tissue structure in the ear regardless of the type of lead alloy added, and it is possible that large grain boundaries are generated by thermal history. As long as the lattice having the rolled textured ears is used, it is also effective when a lead-antimony alloy is used for the additional lead or when other alloy components are added. Also,
In this embodiment, the roll-type rolled sheet ears that tend to be the coarsest crystal grains due to the heat history are used, but the present invention is also effective for other sheet-type alloys such as the drum type where a coarse texture is likely to be formed due to the heat history.

【００１３】[0013]

【発明の効果】以上のように、本発明は圧延によって形
成された鉛−カルシウム系合金の負極の耳の腐食を抑制
し、鉛蓄電池の信頼性と安全性を高めるものであって、
メンテナンスフリー電池の一層の普及に極めて有用であ
る。As described above, the present invention suppresses the corrosion of the ears of the negative electrode of the lead-calcium alloy formed by rolling and enhances the reliability and safety of the lead storage battery.
It is extremely useful for the further spread of maintenance-free batteries.

【図面の簡単な説明】[Brief description of drawings]

【図１】本発明の一実施例において極板の耳に櫛状金型
をセットした状態を示す要部断面側面図である。FIG. 1 is a cross-sectional side view of essential parts showing a state where a comb-shaped mold is set on an ear of an electrode plate in one embodiment of the present invention.

【図２】本発明の一実施例におけるストラップの耳の付
け根近傍の結晶組織を示す模式図である。FIG. 2 is a schematic view showing a crystal structure in the vicinity of a base of an ear of a strap according to an embodiment of the present invention.

【図３】本発明の他の実施例におけるストラップの耳の
付け根近傍の結晶組織を示す模式図である。FIG. 3 is a schematic diagram showing a crystal structure in the vicinity of a base of an ear of a strap according to another embodiment of the present invention.

【図４】従来のストラップの耳の付け根近傍の結晶組織
を示す模式図である。FIG. 4 is a schematic diagram showing a crystal structure near the base of the ear of a conventional strap.

【符号の説明】[Explanation of symbols]

１ 負極板 ２ 格子の耳 ３ 櫛状金型 ４ 凹部 ５ 鉛合金の足し鉛 ６ 金型冷却管 ７ 耳の付け根に設けた金型の切り欠き部 ８ 耳の高さの中央位置近傍の圧延による繊維状結晶
主体の組織 ９ 熱影響部の粗大粒子 １０ 熱影響部の粗大粒子の粒界 １１ 覆い部 ｈ 耳の高さ Ｈ 耳の高さの中央位置 Ｋ 耳の露出位置1 Negative electrode plate 2 Lattice ears 3 Comb-shaped dies 4 Recesses 5 Lead alloy added lead 6 Mold cooling tube 7 Notch of die provided at the base of the ears 8 By rolling near the center position of the ears Structure mainly composed of fibrous crystals 9 Coarse particles in heat-affected zone 10 Grain boundaries of coarse particles in heat-affected zone 11 Cover h Ear height H Center position of ear height K Ear exposed position

───────────────────────────────────────────────────── フロントページの続き (72)発明者 高見 宣行 大阪府門真市大字門真1006番地 松下電器 産業株式会社内 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Nobuyuki Takami 1006 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd.

Claims (3)

【特許請求の範囲】[Claims] 【請求項１】 シート状鉛合金基材を加工した耳を持つ
複数枚の負極板の耳を集合して構成した極板群のストラ
ップを備え、少なくともストラップ下から露出する耳の
付け根近傍において、耳の厚さ方向の断面内に、ストラ
ップから離れて露出する耳の高さの中央部とほぼ同等の
結晶組織を主体とする基材組織層を有することを特徴と
する鉛蓄電池。1. A strap of an electrode plate group constituted by assembling a plurality of tabs of a negative electrode plate having tabs processed from a sheet-shaped lead alloy base material, and at least in the vicinity of the base of the tabs exposed from under the straps. A lead acid battery having a base texture layer mainly having a crystal texture substantially equal to a center portion of the ear height exposed away from the strap in a cross section in the thickness direction of the ear. 【請求項２】 前記基材組織層が、繊維状の圧延組織で
あって、耳の厚さの少なくとも１／３以上を占めること
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 base structure layer is a fibrous rolled structure and occupies at least 1/3 or more of the thickness of the ear. 【請求項３】 前記露出する耳の付け根近傍における耳
の断面は、耳の基材組織層の圧延繊維状組織をこえて溶
接の熱履歴により生成した結晶の粒界で連続していない
ことを特徴とする請求項１または２記載の鉛蓄電池。3. The cross section of the ear in the vicinity of the exposed root of the ear is not continuous with grain boundaries of crystals generated by the heat history of welding beyond the rolled fibrous structure of the base structure layer of the ear. The lead acid battery according to claim 1 or 2, which is characterized.
JP16846193A 1993-06-14 1993-06-14 Lead storage battery Expired - Fee Related JP3417976B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16846193A JP3417976B2 (en) 1993-06-14 1993-06-14 Lead storage battery

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16846193A JP3417976B2 (en) 1993-06-14 1993-06-14 Lead storage battery

Publications (2)

Publication Number Publication Date
JPH076766A true JPH076766A (en) 1995-01-10
JP3417976B2 JP3417976B2 (en) 2003-06-16

Family

ID=15868547

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16846193A Expired - Fee Related JP3417976B2 (en) 1993-06-14 1993-06-14 Lead storage battery

Country Status (1)

Country Link
JP (1) JP3417976B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005045956A1 (en) * 2003-11-07 2005-05-19 Gs Yuasa Corporation Lead acid battery and method of manufacturing the same
JP2009064720A (en) * 2007-09-07 2009-03-26 Gs Yuasa Corporation:Kk Lead acid battery
JP2011181321A (en) * 2010-03-01 2011-09-15 Panasonic Corp Lead-acid battery

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005045956A1 (en) * 2003-11-07 2005-05-19 Gs Yuasa Corporation Lead acid battery and method of manufacturing the same
JP2009064720A (en) * 2007-09-07 2009-03-26 Gs Yuasa Corporation:Kk Lead acid battery
JP2011181321A (en) * 2010-03-01 2011-09-15 Panasonic Corp Lead-acid battery

Also Published As

Publication number Publication date
JP3417976B2 (en) 2003-06-16

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