JP2007227118A - Method of manufacturing electrode plate group for lead-acid battery, and lead-acid battery using the same - Google Patents
Method of manufacturing electrode plate group for lead-acid battery, and lead-acid battery using the same Download PDFInfo
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- JP2007227118A JP2007227118A JP2006046144A JP2006046144A JP2007227118A JP 2007227118 A JP2007227118 A JP 2007227118A JP 2006046144 A JP2006046144 A JP 2006046144A JP 2006046144 A JP2006046144 A JP 2006046144A JP 2007227118 A JP2007227118 A JP 2007227118A
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- 239000002253 acid Substances 0.000 title claims abstract description 17
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 14
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims abstract description 28
- 238000000034 method Methods 0.000 claims abstract description 28
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 23
- 239000000956 alloy Substances 0.000 claims abstract description 23
- 229910020220 Pb—Sn Inorganic materials 0.000 claims abstract description 21
- 238000003466 welding Methods 0.000 claims abstract description 20
- 230000004907 flux Effects 0.000 claims abstract description 15
- 238000007747 plating Methods 0.000 claims abstract description 15
- HPGGPRDJHPYFRM-UHFFFAOYSA-J tin(iv) chloride Chemical compound Cl[Sn](Cl)(Cl)Cl HPGGPRDJHPYFRM-UHFFFAOYSA-J 0.000 claims abstract description 12
- HWSZZLVAJGOAAY-UHFFFAOYSA-L lead(II) chloride Chemical compound Cl[Pb]Cl HWSZZLVAJGOAAY-UHFFFAOYSA-L 0.000 claims abstract description 6
- 210000005069 ears Anatomy 0.000 claims description 33
- 238000003860 storage Methods 0.000 claims description 10
- 238000007654 immersion Methods 0.000 abstract description 6
- 229910000978 Pb alloy Inorganic materials 0.000 abstract description 3
- 230000015572 biosynthetic process Effects 0.000 abstract description 3
- 238000000576 coating method Methods 0.000 abstract description 2
- 230000000052 comparative effect Effects 0.000 description 7
- 230000007547 defect Effects 0.000 description 7
- 238000006073 displacement reaction Methods 0.000 description 7
- 238000011835 investigation Methods 0.000 description 5
- 230000007797 corrosion Effects 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 229910001128 Sn alloy Inorganic materials 0.000 description 2
- 238000007598 dipping method Methods 0.000 description 2
- 239000003792 electrolyte Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000005304 joining Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 239000011149 active material Substances 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
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- Chemically Coating (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
Description
本発明は、高品質な鉛蓄電池用極板群の製造方法および前記極板群を用いた長寿命の鉛蓄電池に関する。 The present invention relates to a method for producing a high quality lead-acid battery electrode group and a long-life lead-acid battery using the electrode group.
鉛蓄電池用極板群は、例えば、図３に示すように、複数の正極板１と複数の負極板２とをセパレータ３を介して交互に積層し、この積層体の正極耳部１ａ同士と負極耳部２ａ同士をそれぞれ溶接したものであり、前記溶接部はストラップ７と称する。図中８は極柱である。 For example, as shown in FIG. 3, the lead-acid battery electrode group includes a plurality of positive electrode plates 1 and a plurality of negative electrode plates 2 that are alternately stacked via separators 3. The negative electrode ears 2a are welded to each other, and the weld is referred to as a strap 7. In the figure, 8 is a pole.
前記溶接は、図４に示すように、極板１、２を倒立させて耳部１ａ、２ａを鋳型９内の溶融鉛１０に浸漬し、溶融鉛１０を耳部１ａ、２ａの周囲に冷却凝固させるキャストオン方式（以下ＣＯＳ方式と称す。）、或いは耳部に鉛棒を配置し、この鉛棒をバーナー加熱により溶融し凝固させるバーナー溶接法などにより行われている。前記ＣＯＳ方式は極板群を電槽に挿入後に行うこともできる。
前記ＣＯＳ方式は、ストラップ７と一緒に極柱８或いはセル間接続体も形成でき、また溶融鉛１０の温度管理が容易であり、さらに自動化も可能なため広く用いられている。
In the welding, as shown in FIG. 4, the electrode plates 1 and 2 are inverted and the ears 1a and 2a are immersed in the molten lead 10 in the mold 9, and the molten lead 10 is cooled around the ears 1a and 2a. It is carried out by a cast-on method for solidifying (hereinafter referred to as COS method) or a burner welding method in which a lead bar is arranged at the ear and this lead bar is melted and solidified by burner heating. The COS method may be performed after the electrode plate group is inserted into the battery case.
The COS method is widely used because it can form the pole column 8 or the inter-cell connection body together with the strap 7, and the temperature control of the molten lead 10 is easy and can be automated.
前記溶接に当たっては、活物質充填時に耳部に付着したペースト或いは熟成や乾燥時に生成した酸化皮膜は予め除去するが、除去が不十分な場合は溶融鉛１０の濡れ性が悪化し、図５に示すように耳部２ａとストラップ７間に隙間１１が生じた。 In the welding, the paste adhering to the ears when filling the active material or the oxide film formed during aging or drying is removed in advance, but if the removal is insufficient, the wettability of the molten lead 10 deteriorates, and FIG. As shown, a gap 11 was formed between the ear 2a and the strap 7.
また溶融鉛１０の濡れ性を良くするため両極耳部１ａ、２ａにフラックスを塗布した場合は、溶接熱でフラックスがガス化してストラップ７にブローホール（図示せず）が発生することがあった。
そして隙間１１やブローホールは耳部１ａ、２ａとストラップ７間の接合強度を低下させ、また電池使用中に隙間１１やブローホールに電解液が侵入して両極耳部１ａ、２ａ或いはストラップ７が腐食するといった問題があった。これらの問題はＣＯＳ方式でもバーナー加熱方式でも同じように発生し、電池寿命の低下の原因になっていた。
In addition, when flux is applied to both ears 1a and 2a in order to improve the wettability of molten lead 10, the flux may be gasified by welding heat and a blow hole (not shown) may be generated in strap 7. .
The gap 11 and the blowhole reduce the bonding strength between the ears 1a and 2a and the strap 7, and the electrolyte enters the gap 11 and the blowhole while the battery is in use, so that the bipolar ears 1a, 2a or the strap 7 There was a problem of corrosion. These problems occur in the same way in both the COS method and the burner heating method, causing a reduction in battery life.
このようなことから、耳部をＰｂ−Ｓｎ合金溶湯に浸漬して耳部にＰｂ−Ｓｎ合金層を形成してから溶接する方法（特許文献１）、或いは前記耳部浸漬時にＰｂ−Ｓｎ合金溶湯に超音波振動を付与する方法（特許文献２）が提案された。 For this reason, a method of welding after forming the Pb—Sn alloy layer on the ear by immersing the ear in a molten Pb—Sn alloy (Patent Document 1), or a Pb—Sn alloy during the immersion of the ear. A method (Patent Document 2) for applying ultrasonic vibration to a molten metal has been proposed.
しかしながら、特許文献１、２の方法では、耳部の表面皮膜を合金溶湯浸漬法で形成するため、耳部に残存したペーストや酸化皮膜を十分除去できず耳部とストラップの耐食性を安定して高めることは難しい。特許文献１では耳部とストラップの機械的強度は上がっているが断面組織観察では内部欠陥が多く存在している。
本発明は、耳部とストラップ間にフィレットが良好に形成された高品質の鉛蓄電池用極板群を製造する方法および前記極板群を用いた長寿命の鉛蓄電池の提供を目的とする。
However, in the methods of Patent Documents 1 and 2, since the surface film of the ear part is formed by the molten alloy dipping method, the paste and oxide film remaining on the ear part cannot be sufficiently removed, and the corrosion resistance of the ear part and the strap is stabilized. It is difficult to increase. In Patent Document 1, the mechanical strength of the ear part and the strap is increased, but many internal defects exist in the cross-sectional structure observation.
An object of the present invention is to provide a method for producing a high-quality lead-acid battery group in which a fillet is well formed between an ear part and a strap, and a long-life lead-acid battery using the electrode group.
請求項１記載発明は、複数の正極板および負極板の耳部にＳｎ層またはＰｂ−Ｓｎ合金層を形成し、前記正極板の耳部同士および負極板の耳部同士をそれぞれ溶接する鉛蓄電池用極板群の製造方法において、前記耳部にＳｎ層またはＰｂ−Ｓｎ合金層を塩化錫／塩酸系浴または塩化錫＋塩化鉛／塩酸系浴を用いた置換メッキ法により形成し、かつ前記耳部同士の溶接をフラックスを用いずに行うことを特徴とする鉛蓄電池用極板群の製造方法である。 According to a first aspect of the present invention, there is provided a lead storage battery in which a Sn layer or a Pb—Sn alloy layer is formed on the ears of a plurality of positive plates and negative plates, and the ears of the positive plates and the ears of the negative plate are welded to each other. In the manufacturing method of the electrode plate group, an Sn layer or a Pb—Sn alloy layer is formed on the ear by a substitution plating method using a tin chloride / hydrochloric acid bath or a tin chloride + lead chloride / hydrochloric acid bath, and It is a manufacturing method of the electrode plate group for lead acid batteries characterized by performing welding between ear parts, without using flux.
請求項２記載発明は、前記耳部同士の溶接を、前記耳部を予熱して行うことを特徴とする請求項１記載の鉛蓄電池用極板群の製造方法である。 The invention according to claim 2 is the method for producing the electrode plate group for a lead storage battery according to claim 1, wherein the welding of the ears is performed by preheating the ears.
請求項３記載発明は、請求項１または２記載の製造方法により製造された鉛蓄電池用極板群が用いられていることを特徴とする鉛蓄電池である。 According to a third aspect of the present invention, there is provided a lead storage battery in which the electrode plate group for a lead storage battery manufactured by the manufacturing method according to the first or second aspect is used.
本発明では、耳部の溶接（ストラップの形成）に先立ち、耳部にＳｎ層またはＰｂ−Ｓｎ合金層を置換メッキ法により形成するので、耳部に残存するペーストや酸化皮膜は置換メッキ浴中で溶解または還元され十分除去される。従って、Ｓｎ層またはＰｂ−Ｓｎ合金層が耳部に良好に置換メッキされる。また前記置換メッキ層は鉛合金溶湯との濡れ性がよいため耳部とストラップ間にフィレットが良好に形成される。また本発明では、フラックスを用いないためブローホールが発生しない。従って本発明によれば、耳部とストラップ間の接合強度が高く、かつ耳部およびストラップが腐食し難い高品質の鉛蓄電池用極板群が得られる。前記高品質の極板群を用いた本発明の鉛蓄電池は長寿命である。 In the present invention, the Sn layer or the Pb—Sn alloy layer is formed on the ear portion by displacement plating prior to the welding of the ear portion (formation of the strap). It is dissolved or reduced with a sufficient removal. Therefore, the Sn layer or the Pb—Sn alloy layer is satisfactorily plated on the ear portion. Further, since the displacement plating layer has good wettability with the molten lead alloy, a fillet is favorably formed between the ear portion and the strap. In the present invention, since no flux is used, blow holes are not generated. Therefore, according to the present invention, it is possible to obtain a high-quality electrode plate group for a lead storage battery that has a high bonding strength between the ear part and the strap and is resistant to corrosion by the ear part and the strap. The lead storage battery of the present invention using the high-quality electrode plate group has a long life.
本発明は、図１（イ）に示すように、複数の正極板１および負極板２をセパレータ３を介して積層した積層体の各極板の耳部１ａ、２ａを塩化錫／塩酸系浴または塩化錫＋塩化鉛／塩酸系浴４に浸漬して、図１（ロ）に示すように、各極板の耳部１ａ、２ａにＳｎ層またはＰｂ−Ｓｎ合金層５を置換メッキし、その後、前記正極板１の耳部１ａ同士および負極板２の耳部２ａ同士をフラックスを塗布せずにＣＯＳ方式（図４参照）またはバーナー溶接法により溶接する鉛蓄電池用極板群の製造方法である。 In the present invention, as shown in FIG. 1 (a), the ears 1a and 2a of each electrode plate of a laminate in which a plurality of positive electrode plates 1 and negative electrode plates 2 are laminated via a separator 3 are used as a tin chloride / hydrochloric acid bath. Alternatively, it is immersed in a tin chloride + lead chloride / hydrochloric acid bath 4 and, as shown in FIG. 1 (b), the Sn layer or the Pb—Sn alloy layer 5 is substituted and plated on the ears 1a, 2a of each electrode plate, Then, the manufacturing method of the electrode plate group for lead acid batteries which welds the ear | edge parts 1a of the said positive electrode plate 1 and the ear | edge parts 2a of the negative electrode plate 2 by a COS system (refer FIG. 4) or a burner welding method, without apply | coating a flux. It is.
本発明において、耳部にＳｎ層またはＰｂ−Ｓｎ合金層を、塩化錫／塩酸系浴または塩化錫＋塩化鉛／塩酸系浴を用いた置換メッキ法により形成する理由は、前記塩酸系浴により耳部に残存するペーストや酸化皮膜が十分除去され、耳部と溶融鉛の濡れ性が向上し、図２に示すように、耳部２ａとストラップ７の接合部にフィレット６が良好に形成され、耳部２ａとストラップ７間に隙間が生じなくなるためである。 In the present invention, the reason why the Sn layer or the Pb—Sn alloy layer is formed in the ear portion by the substitution plating method using the tin chloride / hydrochloric acid bath or the tin chloride + lead chloride / hydrochloric acid bath is that the hydrochloric acid bath is used. The paste and oxide film remaining in the ears are sufficiently removed, the wettability between the ears and the molten lead is improved, and the fillet 6 is well formed at the joint between the ear 2a and the strap 7 as shown in FIG. This is because there is no gap between the ear 2a and the strap 7.
本発明において、置換メッキ中に、置換メッキ浴に超音波振動を付与することにより、ペーストや酸化皮膜がより十分に除去される。 In the present invention, by applying ultrasonic vibration to the displacement plating bath during displacement plating, the paste and oxide film are more sufficiently removed.
本発明において、正極板の耳部同士および負極板の耳部同士の溶接には、任意の方法が適用できるが、作業性に優れるＣＯＳ方式またはバーナー溶接法を推奨される。特にＣＯＳ方式は溶接温度を管理し易いなどの利点を有し望ましい。 In the present invention, any method can be applied to welding the ears of the positive electrode plates and the ears of the negative electrode plates, but a COS method or a burner welding method excellent in workability is recommended. In particular, the COS method is desirable because it has advantages such as easy control of the welding temperature.
本発明において、溶接時にフラックスを塗布しない理由は、フラックスが溶接熱でガス化してブローホールが発生し、耳部とストラップ間の接合強度が低下し、さらに電池使用中に前記ブローホールに電解液が侵入して耳部およびストラップが腐食するためである。 In the present invention, the reason why the flux is not applied at the time of welding is that the flux is gasified by welding heat and blow holes are generated, the bonding strength between the ears and the strap is lowered, and the electrolyte is applied to the blow holes during battery use. This is because ears and straps corrode due to intrusion.
本発明において、溶接前に耳部を予熱しておくと、溶融鉛の湯流れ性が向上し、耳部にフィレットがより良好に形成され望ましい。 In the present invention, it is desirable to preheat the ears before welding, so that the molten lead flowability is improved and a fillet is more favorably formed in the ears.
ペーストおよび酸化皮膜が残存している正極板３枚および負極板４枚をガラス繊維を抄造したリテーナマット（セパレータ）を介して交互に積層し、この積層体の極板の耳部にＳｎ層またはＰｂ−５０％Ｓｎ合金層を塩酸系浴を用いて１０〜１５μｍ厚みに置換メッキし、水洗、乾燥後、同極性耳群同士をＰｂ−１５％Ｓｎ合金溶湯を用いたＣＯＳ方式により群溶接して鉛蓄電池用極板群（図３参照）を製造した。耳部へのフラックス塗布および耳部の予熱は行わなかった。 Three positive electrode plates and four negative electrode plates in which the paste and oxide film remain are alternately laminated via a retainer mat (separator) made of glass fiber, and an Sn layer or The Pb-50% Sn alloy layer is displacement-plated to a thickness of 10-15 μm using a hydrochloric acid bath, washed with water and dried, then the same polarity ear groups are group welded by the COS method using Pb-15% Sn alloy molten metal. Thus, an electrode plate group for lead storage batteries (see FIG. 3) was manufactured. Flux application to the ears and preheating of the ears were not performed.
得られた極板群について、耳部とストラップ間の隙間の有無、ストラップにおけるブローホールの有無を調べた。 About the obtained electrode group, the presence or absence of a gap between the ear portion and the strap and the presence or absence of a blow hole in the strap were examined.
前記群溶接を置換メッキ後の耳部を予熱して行った他は、実施例１と同じ方法により極板群を製造し、実施例１と同じ調査を行った。 The electrode plate group was manufactured by the same method as in Example 1 except that the group welding was performed by preheating the ears after displacement plating, and the same investigation as in Example 1 was performed.
［比較例１］
前記溶接を耳部にフラックスを塗布し、また耳部を予熱して溶接した他は、実施例２と同じ方法により極板群を製造し、実施例２と同じ調査を行った。
[Comparative Example 1]
The electrode plate group was manufactured by the same method as in Example 2 except that the welding was performed by applying flux to the ears and preheating the ears, and the same investigation as in Example 2 was performed.
［比較例２］
耳部にＳｎ層またはＰｂ−Ｓｎ合金層を形成せず、耳部にフラックスを塗布した他は、実施例２と同じ方法により極板群を製造し、実施例２と同じ調査を行った。
[Comparative Example 2]
The electrode plate group was manufactured by the same method as in Example 2 except that the Sn layer or the Pb—Sn alloy layer was not formed in the ear part and the flux was applied to the ear part, and the same investigation as in Example 2 was performed.
［比較例３］
耳部にＳｎ層またはＰｂ−Ｓｎ合金層を、従来の合金溶湯浸漬法により形成した他は、実施例２と同じ方法により極板群を製造し、実施例２と同じ調査を行った。
[Comparative Example 3]
The electrode plate group was manufactured by the same method as in Example 2 except that a Sn layer or a Pb—Sn alloy layer was formed on the ear by a conventional molten alloy dipping method, and the same investigation as in Example 2 was performed.
実施例１、２および比較例１〜３の調査結果を表１に示す。
表１には、耳部とストラップ間に隙間が存在した極板群（フィレット不良）の個数、およびストラップにブローホールが存在した極板群（ブローホール不良）の個数を示した。調査個数（ｎ）は各２０個とした。
The investigation results of Examples 1 and 2 and Comparative Examples 1 to 3 are shown in Table 1.
Table 1 shows the number of electrode plate groups (fillet failure) in which a gap exists between the ear part and the strap, and the number of electrode plate groups (blow hole failure) in which a blow hole exists in the strap. The number of surveys (n) was 20 each.
表１から明らかなように、本発明例品（実施例１、２）はフィレット不良（図５参照）個数が１以下であった。これは溶接前にＳｎ層またはＰｂ−Ｓｎ合金層を置換メッキ法により形成したため、ペーストや酸化皮膜が置換メッキ浴中で除去されたためである。またフラックスを用いなかったためブローホール不良の個数は０であった。特に耳部を予熱したもの（実施例２）は鉛合金溶湯の湯流れ性が向上しフィレットが極めて良好に形成された。 As is apparent from Table 1, the number of fillet defects (see FIG. 5) of the products of the present invention (Examples 1 and 2) was 1 or less. This is because the paste or oxide film was removed in the displacement plating bath because the Sn layer or the Pb—Sn alloy layer was formed by displacement plating before welding. Further, since no flux was used, the number of blowhole defects was zero. In particular, in the case where the ear portion was preheated (Example 2), the flowability of the molten lead alloy was improved, and the fillet was formed extremely well.
一方、比較例１はフラックスを塗布したためブローホール不良が２〜３個発生した。比較例２はＳｎ層またはＰｂ−Ｓｎ合金層を形成せず、しかもフラックスを塗布したため、フィレット不良が６個、ブローホール不良が４個発生した。比較例３はＳｎ層またはＰｂ−Ｓｎ合金層を溶湯浸漬法により形成したためペーストおよび酸化皮膜が除去されずフィレット不良が３〜４個発生した。 On the other hand, since Comparative Example 1 applied the flux, 2 to 3 blowhole defects occurred. In Comparative Example 2, the Sn layer or the Pb—Sn alloy layer was not formed, and the flux was applied, so that six fillet defects and four blow hole defects occurred. In Comparative Example 3, since the Sn layer or the Pb—Sn alloy layer was formed by the molten metal immersion method, the paste and oxide film were not removed, and 3 to 4 fillet defects occurred.
実施例１、２で製造した極板群のうちフィレットが良好に形成された極板群を用いて、２Ｖ、定格容量７Ａｈの制御弁式鉛蓄電池を組み立ててサイクル寿命試験を行った。
前記サイクル寿命試験は、前記制御弁式鉛蓄電池を２５℃の恒温槽に入れて、放電０．２５Ｃ×２時間（ＤＯＤ５０％）、充電０．１Ｃ×６時間、充電量１２０％の条件で行った。定格容量の７０％を切った時点のサイクル数が４００回以上をサイクル寿命特性が優れると判定した。試験個数は各２個ずつとした。
A cycle life test was conducted by assembling a control valve type lead storage battery having a rated capacity of 7 Ah using the electrode plate group in which the fillet was well formed among the electrode plate groups manufactured in Examples 1 and 2.
The cycle life test is conducted under the condition that the control valve type lead-acid battery is placed in a constant temperature bath at 25 ° C., and the discharge is 0.25 C × 2 hours (DOD 50%), the charging is 0.1 C × 6 hours, and the charging amount is 120%. It was. When the number of cycles at the time when 70% of the rated capacity was cut was 400 times or more, it was determined that the cycle life characteristics were excellent. The number of tests was two each.
その結果、いずれの制御弁式鉛蓄電池も前記サイクル数が４００回以上であり、サイクル寿命特性に優れることが確認された。試験後の電池を解体して極板群を調べたが、耳部とストラップ間の剥離や腐食などは全く認められなかった。 As a result, it was confirmed that any of the valve-regulated lead-acid batteries had a cycle number of 400 times or more and was excellent in cycle life characteristics. The battery after the test was disassembled and the electrode plate group was examined. No peeling or corrosion between the ear and the strap was observed.
１ 正極板
１ａ正極板の耳部
２ 負極板
２ａ負極板の耳部
３ セパレータ
４ 塩化錫／塩酸系浴または塩化錫＋塩化鉛／塩酸系浴
５ Ｓｎ層またはＰｂ−Ｓｎ合金層
６ フィレット
７ ストラップ
８ 極柱
９ 鋳型
１０溶融鉛
１１耳部とストラップ間の隙間
DESCRIPTION OF SYMBOLS 1 Positive electrode plate 1a Ear part of positive electrode plate 2 Negative electrode plate 2a Ear part of negative electrode plate 3 Separator 4 Tin chloride / hydrochloric acid bath or tin chloride + lead chloride / hydrochloric acid bath 5 Sn layer or Pb-Sn alloy layer 6 Fillet 7 Strap 8 pole 9 mold 10 molten lead 11 gap between ear and strap
Claims (3)
A lead-acid battery, characterized in that the lead-acid battery electrode group produced by the production method according to claim 1 or 2 is used.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016119278A (en) * | 2014-12-24 | 2016-06-30 | 株式会社Ｇｓユアサ | Control valve type lead-acid battery |
| CN108370071A (en) * | 2015-12-11 | 2018-08-03 | 日立化成株式会社 | Lead accumulator |
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2006
- 2006-02-23 JP JP2006046144A patent/JP4794315B2/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016119278A (en) * | 2014-12-24 | 2016-06-30 | 株式会社Ｇｓユアサ | Control valve type lead-acid battery |
| CN105742555A (en) * | 2014-12-24 | 2016-07-06 | 株式会社杰士汤浅国际 | Valve-regulated lead storage battery |
| CN105742555B (en) * | 2014-12-24 | 2020-05-22 | 株式会社杰士汤浅国际 | Valve-controlled lead accumulator |
| CN108370071A (en) * | 2015-12-11 | 2018-08-03 | 日立化成株式会社 | Lead accumulator |
| EP3389130A4 (en) * | 2015-12-11 | 2018-10-17 | Hitachi Chemical Co., Ltd. | Lead storage battery |
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