JPS58198860A - Lead storage battery - Google Patents

Lead storage battery

Info

Publication number
JPS58198860A
JPS58198860A JP57083688A JP8368882A JPS58198860A JP S58198860 A JPS58198860 A JP S58198860A JP 57083688 A JP57083688 A JP 57083688A JP 8368882 A JP8368882 A JP 8368882A JP S58198860 A JPS58198860 A JP S58198860A
Authority
JP
Japan
Prior art keywords
lead
current
current collector
collecting body
pure
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
Application number
JP57083688A
Other languages
Japanese (ja)
Inventor
Yoshikazu Ishikura
石倉　良和
Akira Watanabe
明 渡辺
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.)
Sanyo Electric Co Ltd
Sanyo Denki Co Ltd
Original Assignee
Sanyo Electric Co Ltd
Sanyo Denki 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 Sanyo Electric Co Ltd, Sanyo Denki Co Ltd filed Critical Sanyo Electric Co Ltd
Priority to JP57083688A priority Critical patent/JPS58198860A/en
Publication of JPS58198860A publication Critical patent/JPS58198860A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/64—Carriers or collectors
    • H01M4/70—Carriers or collectors characterised by shape or form
    • H01M4/72—Grids
    • H01M4/73—Grids for lead-acid accumulators, e.g. frame plates
    • 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

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Cell Electrode Carriers And Collectors (AREA)

Abstract

PURPOSE:To increase the performance of a lead storage battery by preventing any separation of grains by forming a pure lead layer over the surface of a self- supporting current-collecting body made of a lead alloy by casting so that the entire surface of the current-collecting body is coated with the pure lead layer. CONSTITUTION:A current-collecting body 1 is formed by subjecting a lead-calcium alloy to casting or punching. Next the current-collecting body 1 is immersed in pure lead molten at 327 deg.C, thereafter being lifted and cooled so as to provide a pure lead layer 2 over the entire surface of the current-collecting body 1, thereby making a current-collecting member for a lead storage battery by taking advantage of the difference between the melting point (327 deg.C) of pure lead and that (more than 327 deg.C) of the calcium alloy. As a result, since separation of grains which may be caused due to the difference between the corroding mechanisms of charging and discharging is hardly caused, decrease in the characteristic of the battery which might be caused by long-period charge-and- discharge cycles can be prevented by preventing any cutting or the like of the current-collecting member.

Description

【発明の詳細な説明】 本発明は鉛蓄電池用集電体の改良に関するものである。[Detailed description of the invention] The present invention relates to improvements in current collectors for lead-acid batteries.

現在集電体として多く用いられているのは鉛−アンチモ
ン合金であシ、鋳造性が良いという利点の反面、自己放
電が大きく従って長期保存に難点がある。そうした観点
から低アンチモン合金、あるいは鉛−力ｐシウム合金が
用いられるようになってきた。しかし鉛−アンチモンあ
るいは鉛−カルシウム合金等の鉛合金では充・放電によ
り集電体が粒界腐食すなわち、集電体を構成するｇｒａ
ｉｎ境界を選択的に腐食し、ｇｒａ　ｉｎの脱落が生じ
るため集電体の切断等が生じ、電池特性が低下していた
。Currently, lead-antimony alloys are widely used as current collectors, which have the advantage of good castability, but suffer from large self-discharge, making long-term storage difficult. From this point of view, low antimony alloys or lead-p-sium alloys have come to be used. However, in lead alloys such as lead-antimony or lead-calcium alloys, the current collector undergoes intergranular corrosion due to charging and discharging, resulting in grain boundary corrosion of the current collector.
The in boundaries were selectively corroded and the grains fell off, causing disconnection of the current collector, resulting in deterioration of battery characteristics.

一方、本発明の如く鉛合金集電体表面に純鉛を配すると
その腐食機構が異なシ表面の全面腐食となシ粒界を選択
的にアタックしｇｒａｉｎの脱落を生じさせるといつた
現象が起こりにくいために長期間の充・放電サイクルに
よる電池特性の低下も起とシにくい利点をもっている。On the other hand, when pure lead is placed on the surface of a lead alloy current collector as in the present invention, the corrosion mechanism is different, such as general corrosion of the surface and selective attack of grain boundaries, causing grains to fall off. This has the advantage that deterioration of battery characteristics due to long-term charge/discharge cycles is less likely to occur.

本発明は、か＼る点を鑑みてなされたものであり、その
要旨とするところは鉛合金集電体を溶融純船中に浸漬し
、引き上げて冷却し、該集電体表面に純鉛層を形成した
集電棒金用いることにより電池特性の向上を計るもので
ある。The present invention has been made in view of the above points, and its gist is that a lead alloy current collector is immersed in a molten pure vessel, pulled up and cooled, and pure lead is coated on the surface of the current collector. The purpose is to improve battery characteristics by using a current collector bar with layers formed on it.

以下、本発明の詳細を実施例により説明する。Hereinafter, the details of the present invention will be explained with reference to Examples.

鉛−カルシウム合金全鋳造あるいは打抜き等により集電
体を形成したのち、純鉛の融点（３２７℃）とカルシウ
ム合金の融点（３２７℃以上）の融点温度差金利用し３
２７℃で溶融した純船中に該合金よりなる集電体を浸漬
し引き上げて冷却して集電体（１）の表面に純鉛（２）
を配した（第１図参照）。以上の如き方法により得た本
発明集電体と従来の鉛−カルシウム合金集電体を厚み１
．’７　ｇとし、−酸化鉛と水とを練合してペースト状
とし、本発明集電体と従来集電休とに犬々塗着し極板と
し、ＩＡＨの電池を構成したのち、充・放電サイク／ｌ
／試験で両者を比較した。その結果第２図に示す如きサ
イクル特性を示し、鉛−カルシウム合金集電体を用いた
電池（比較電池）は、　１００サイクル以降急激な容量
低下がみられ、これを分解した結果、集電体一部が切断
していた。しかし鉛合金表面に純鉛を配した集電体を用
いた電池（本発明電池）は１５０サイクルにおいても特
性低下はみられず両者の差は顕著なものであった。これ
は前記、鉛白金集重体と鉛合金表面に純鉛を配した集電
体との腐食機構の差異によるものであると思われる。After forming a current collector by full casting or punching of a lead-calcium alloy, it is made using the melting point temperature difference between the melting point of pure lead (327°C) and the melting point of calcium alloy (327°C or higher).
A current collector made of the alloy is immersed in a pure vessel melted at 27°C, pulled up and cooled to coat the surface of the current collector (1) with pure lead (2).
(See Figure 1). The present invention current collector obtained by the above method and the conventional lead-calcium alloy current collector were mixed to a thickness of 1
．． '7 g, mixed with -lead oxide and water to form a paste, and applied it to the current collector of the present invention and the conventional current collector to form electrode plates. After configuring the IAH battery, it was charged.・Discharge cycle/l
/The two were compared in a test. The results showed cycle characteristics as shown in Figure 2, and the battery using a lead-calcium alloy current collector (comparison battery) showed a rapid decrease in capacity after 100 cycles. Some parts were cut off. However, in the battery using a current collector in which pure lead was arranged on the surface of a lead alloy (the battery of the present invention), no deterioration in characteristics was observed even after 150 cycles, and the difference between the two was remarkable. This is thought to be due to the difference in corrosion mechanism between the lead-platinum aggregate and the current collector in which pure lead is disposed on the lead alloy surface.

以上の如く、本発明による集電体を用いて電池を構成す
ることによりすぐれた電池特性を得ることができ、その
工業的価値は極めて大なるものである０As described above, excellent battery characteristics can be obtained by constructing a battery using the current collector according to the present invention, and its industrial value is extremely large.

【図面の簡単な説明】 第１図は、本発明による集電体の拡大説明図、第２図は
、本発明による集電体と従来の鉛合金を用いて構成した
鉛蓄電池の充・放電サイクル特性図（グラフ）である。 （１）：鉛合金、（２）：純鉛層。[Brief Description of the Drawings] Fig. 1 is an enlarged explanatory diagram of a current collector according to the present invention, and Fig. 2 is a charging/discharging diagram of a lead-acid battery constructed using a current collector according to the present invention and a conventional lead alloy. It is a cycle characteristic diagram (graph). (1): Lead alloy, (2): Pure lead layer.

Claims (1)

【特許請求の範囲】[Claims] １、鉛合金よりなる自己支持性集電体の表面に鋳造によ
り純鉛層を構成し、該純鉛層が集電体全面を被覆してな
る集電体を用いることを特徴とする鉛蓄電池。1. A lead-acid battery characterized by using a current collector in which a pure lead layer is formed by casting on the surface of a self-supporting current collector made of a lead alloy, and the pure lead layer covers the entire surface of the current collector. .
JP57083688A 1982-05-17 1982-05-17 Lead storage battery Pending JPS58198860A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57083688A JPS58198860A (en) 1982-05-17 1982-05-17 Lead storage battery

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57083688A JPS58198860A (en) 1982-05-17 1982-05-17 Lead storage battery

Publications (1)

Publication Number Publication Date
JPS58198860A true JPS58198860A (en) 1983-11-18

Family

ID=13809425

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57083688A Pending JPS58198860A (en) 1982-05-17 1982-05-17 Lead storage battery

Country Status (1)

Country Link
JP (1) JPS58198860A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5379502A (en) * 1993-06-10 1995-01-10 Derafe, Ltd. Methods for fabricating battery plates for lead/acid batteries
US5585209A (en) * 1993-06-10 1996-12-17 Feldstein; Robert S. Bipolar lead/acid batteries
US6939125B2 (en) 2000-10-12 2005-09-06 Asahi Glass Company, Limited Method for reducing nitrogen oxides in combustion gas from combustion furnace

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5070836A (en) * 1973-10-29 1975-06-12
JPS547542A (en) * 1977-06-20 1979-01-20 Matsushita Electric Ind Co Ltd Method of making grating for lead storage battery

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5070836A (en) * 1973-10-29 1975-06-12
JPS547542A (en) * 1977-06-20 1979-01-20 Matsushita Electric Ind Co Ltd Method of making grating for lead storage battery

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5379502A (en) * 1993-06-10 1995-01-10 Derafe, Ltd. Methods for fabricating battery plates for lead/acid batteries
US5585209A (en) * 1993-06-10 1996-12-17 Feldstein; Robert S. Bipolar lead/acid batteries
US6939125B2 (en) 2000-10-12 2005-09-06 Asahi Glass Company, Limited Method for reducing nitrogen oxides in combustion gas from combustion furnace

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