JP2002231302A - Control valve type lead-acid battery - Google Patents
Control valve type lead-acid batteryInfo
- Publication number
- JP2002231302A JP2002231302A JP2001022651A JP2001022651A JP2002231302A JP 2002231302 A JP2002231302 A JP 2002231302A JP 2001022651 A JP2001022651 A JP 2001022651A JP 2001022651 A JP2001022651 A JP 2001022651A JP 2002231302 A JP2002231302 A JP 2002231302A
- Authority
- JP
- Japan
- Prior art keywords
- positive electrode
- current collector
- control valve
- valve type
- acid battery
- 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.)
- Abandoned
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)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、制御弁式鉛蓄電池
に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a control valve type lead storage battery.
【０００２】[0002]
【従来の技術】制御弁式鉛蓄電池は安価で信頼性が高い
という特徴を有するため、無停電電源装置や電力貯蔵用
として広く使用されている。最近、これらに使用される
制御弁式鉛蓄電池の長寿命化が強く要求されている。2. Description of the Related Art A control valve type lead storage battery is widely used for an uninterruptible power supply and for power storage because of its features of being inexpensive and having high reliability. Recently, there is a strong demand for a longer life of a control valve type lead storage battery used for these.
【０００３】制御弁式鉛蓄電池の主な寿命の要因は、正
極板に用いる集電体の腐食によるものである。すなわ
ち、正極用の集電体が腐食すると、伸びが発生して負極
板やその上部に位置する負極用ストラップとショートす
るという問題点がある。そして、正極板と負極板とのシ
ョートは、負極板の耳部付近で発生しやすいことが知ら
れている。[0003] A major factor of the life of a control valve type lead-acid battery is due to corrosion of a current collector used for a positive electrode plate. That is, when the current collector for the positive electrode is corroded, there is a problem that elongation occurs and short-circuits with the negative electrode plate and the negative electrode strap located above the negative electrode plate. It is known that a short circuit between the positive electrode plate and the negative electrode plate easily occurs near the ears of the negative electrode plate.
【０００４】[0004]
【発明が解決しようとする課題】一般に正極用集電体と
して、鉛−カルシウム−錫合金が用いられており、その
耐食性を向上させる手法として、使用する鉛合金組成の
最適化が検討されている。しかしながら、これらの検討
によっても正極用集電体の大幅な耐腐食性能の向上は得
られていないのが現状である。In general, a lead-calcium-tin alloy is used as a current collector for a positive electrode, and optimization of the composition of a lead alloy to be used has been studied as a technique for improving its corrosion resistance. . However, the current situation is that the corrosion resistance of the positive electrode current collector has not been significantly improved by these studies.
【０００５】正極用集電体の腐食による伸びを減少させ
る手法として、それを形成する骨格を太くして、腐食を
進みにくくさせる手法が検討されてきた。しかしなが
ら、前記正極用集電体の骨格を太くすると、制御弁式鉛
蓄電池の質量が重くなることや、充填される活物質量が
少なくなるために放電容量が低下するという問題点があ
る。[0005] As a method of reducing elongation due to corrosion of the positive electrode current collector, a method of making the skeleton forming it thicker to make it difficult for corrosion to proceed has been studied. However, when the skeleton of the positive electrode current collector is made thicker, there is a problem that the mass of the control valve type lead-acid battery is increased and the discharge capacity is reduced because the amount of the filled active material is reduced.
【０００６】また、正極用集電体の周辺を形成する枠骨
部分の断面積は、電極板の枚数構成やペースト状活物質
の充填時や充填後のハンドリング性などから規定される
ため、寸法や形状の大幅な変更は難しい。The cross-sectional area of the frame portion forming the periphery of the current collector for the positive electrode is determined by the configuration of the number of electrode plates and the handling properties at the time of filling and after filling with the paste-like active material. It is difficult to change the shape and shape significantly.
【０００７】本発明の目的は、正極用集電体の形状を改
良することによって、負極板の耳部付近で正極板とショ
ートすることを抑制し、長寿命な制御弁式鉛蓄電池を提
供することにある。An object of the present invention is to provide a control valve type lead storage battery having a long life by improving the shape of the current collector for the positive electrode, thereby suppressing short-circuit with the positive electrode near the ear of the negative electrode. It is in.
【０００８】[0008]
【課題を解決するための手段】上記した課題を解決する
ため、本発明は、略長方形状をしており、上方向に突出
した正極耳部を有する正極板と、略長方形状をしてお
り、上方向に突出した負極耳部を有する負極板とを、セ
パレータを介して積層し、溶接して極板群を作製して用
いる制御弁式鉛蓄電池において、前記正極板は、正極用
集電体にペースト状活物質を充填して作製したものであ
り、前記正極用集電体の周囲部分は、縦枠骨と横枠骨と
で形成されており、前記正極用集電体の内側部分は、上
下方向に複数の縦中骨及び縦細骨とで形成されており、
前記縦中骨の断面積は、前記縦細骨の断面積の２倍以上
を有するものであり、前記縦中骨のいずれかが、前記負
極耳部の突出方向と重なるように積層されていることを
特徴としている。In order to solve the above-mentioned problems, the present invention has a substantially rectangular shape, a positive electrode plate having a positive lug protruding upward, and a substantially rectangular shape. And a negative electrode plate having a negative electrode lug protruding upward, laminated through a separator, and welded to form a group of electrode plates. The positive electrode current collector is formed by filling the body with a paste-like active material. Is formed with a plurality of vertical medial bones and vertical fine bones in the vertical direction,
The cross-sectional area of the longitudinal medial bone has at least twice the cross-sectional area of the longitudinal medial bone, and any of the longitudinal medial bones is laminated so as to overlap the projecting direction of the negative electrode ear. It is characterized by:
【０００９】[0009]
【発明の実施の形態】正極用集電体の原材料として、従
来から使用されている鉛−カルシウム−錫合金を用いて
制御弁式鉛蓄電池を作成して実験した。以下に、本発明
の実施の形態を説明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS A control valve type lead-acid battery was prepared using a conventionally used lead-calcium-tin alloy as a raw material of a current collector for a positive electrode, and an experiment was conducted. Hereinafter, an embodiment of the present invention will be described.
【００１０】１．正極用集電体の作製 カルシウム量が０．０９質量％、錫量が１．２質量％、
残部が鉛からなる組成の鉛合金を使用した。彫り込み形
状の異なる鋳型を１８０℃〜２００℃にあらかじめ加熱
しておき、約５００℃に溶融した前記鉛合金の溶湯を前
記鋳型に流し込んで凝固させた後、離型して図１、２に
示すような２種類の正極用集電体を作製した。[0010] 1. Preparation of current collector for positive electrode The amount of calcium was 0.09% by mass, the amount of tin was 1.2% by mass,
A lead alloy having a composition consisting of lead in the remainder was used. The molds having different engraving shapes are heated in advance to 180 ° C to 200 ° C, and the melt of the lead alloy melted at about 500 ° C is poured into the mold to solidify, and then released, as shown in FIGS. Two types of such positive electrode current collectors were produced.
【００１１】正極用集電体は、略長方形状をしており、
上方向に突出した正極耳部7aを有しており、該正極耳部
7aを除いた外形寸法は、ｗ４３ｍｍ×ｌ７０ｍｍ×
ｔ３．０ｍｍである。The positive electrode current collector has a substantially rectangular shape.
It has a positive electrode ear 7a projecting upward,
The outer dimensions excluding 7a are w 43 mm x l 70 mm x
t is 3.0 mm.
【００１２】前記正極用集電体の周囲部分は、縦枠骨2
と横枠骨1とで形成されており、その内側部分は、上下
方向に複数の縦中骨5及び縦細骨6とで形成されている。
そして、縦中骨5の断面積は、縦細骨6の断面積の２倍に
した（図１、２）。なお、２種類の正極用集電体の質量
は、ともに２５ｇにした。A peripheral portion of the positive electrode current collector is
And a horizontal frame bone 1, and an inner portion thereof is formed by a plurality of vertical medial bones 5 and vertical fine bones 6 in the vertical direction.
Then, the cross-sectional area of the longitudinal medial bone 5 was set to twice the cross-sectional area of the longitudinal fine bone 6 (FIGS. 1 and 2). The mass of the two types of positive electrode current collectors was 25 g.
【００１３】２．正極板及び制御弁式鉛蓄電池の作製 前記した正極用集電体に従来の手法でペースト状活物質
を充填し、熟成、乾燥して未化成のペースト式正極板を
作成する。作製したペースト式正極板を４枚、従来から
使用していた寸法がｗ４３ｍｍ×ｌ７０ｍｍ×ｔ２．０
ｍｍのペースト式負極板を５枚用い、ガラス繊維製のセ
パレータを介して組み合わせて極板群を作製する。な
お、ペースト式負極板に用いた集電体は、正極用集電体
と同様に略長方形状をしており、一方の短辺には上方向
に突出した略長方形状をした負極耳部7bを有している。2. Preparation of Positive Electrode Plate and Control Valve Lead-Acid Battery The above-mentioned positive electrode current collector is filled with a pasty active material by a conventional method, and aged and dried to prepare an unformed paste type positive electrode plate. 4 sheets of paste type positive electrode plate was produced, the dimensions have been used conventionally w 43mm × l 70mm × t 2.0
An electrode plate group is prepared by using five paste-type negative electrode plates having a thickness of 5 mm and combining them via a glass fiber separator. The current collector used for the paste-type negative electrode plate has a substantially rectangular shape similarly to the positive electrode current collector, and has a substantially rectangular negative electrode ear 7b protruding upward on one short side. have.
【００１４】前記極板群を電槽に挿入し、２７質量％の
希硫酸電解液を約８０ｇ注液した後、正極用活物質理論
容量の２３０％の課電量で電槽化成をして密閉し、２Ｖ
−７Ａｈ（公称容量；ただし、２０時間率容量）の制御
弁式鉛蓄電池を作製した。After inserting the electrode plate group into a battery case and injecting about 80 g of a 27% by mass diluted sulfuric acid electrolyte solution, the battery case was formed with a charge amount of 230% of the theoretical capacity of the active material for the positive electrode, and sealed. And 2V
A control valve type lead-acid battery having a capacity of -7 Ah (nominal capacity; however, capacity at a rate of 20 hours) was produced.
【００１５】３．初期の放電試験及び寿命試験 電槽化成した制御弁式鉛蓄電池は、２５℃、２１Ａ(３
ＣＡ)の定電流で放電（放電終止電圧：１．３Ｖ）して
初期の放電容量を測定し、異常がないことを確認する。3. Initial discharge test and life test The control valve type lead-acid battery formed in a battery case is 25 ° C, 21A (3
Discharge with a constant current of CA) (discharge end voltage: 1.3 V), and measure the initial discharge capacity to confirm that there is no abnormality.
【００１６】初期の放電試験をした制御弁式鉛蓄電池
は、６０℃の環境下において、２．２３Ｖの定電圧で連
続的に過充電し、３０日毎に、２５℃で２１Ａ(３ＣＡ)
の定電流で放電（放電終止電圧：１．３Ｖ）して放電
容量を確認する。そして、前記した過充電試験後の放電
容量と、初期の放電容量との比率を比較し（以下、容量
比と呼ぶ。）、該容量比が６０％以下となった時点を寿
命とした。The control valve type lead-acid battery which was subjected to the initial discharge test was continuously overcharged at a constant voltage of 2.23 V in an environment of 60 ° C., and every 30 days at 25 ° C. at 21 A (3 CA).
At a constant current (discharge end voltage: 1.3 V) to check the discharge capacity. Then, the ratio between the discharge capacity after the above-mentioned overcharge test and the initial discharge capacity was compared (hereinafter referred to as a capacity ratio), and the time when the capacity ratio became 60% or less was defined as the life.
【００１７】[0017]
【実施例】以下に本発明の実施例を詳細に説明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail.
【００１８】（実施例１）図１は、本発明を用いた極板
群構造の概略図である。負極耳部7bの突出方向と、正極
用集電体の縦中骨5のいずれかが重なるように積層され
ている。その他の制御弁式鉛蓄電池の作成条件や試験条
件等は上記したものである。(Embodiment 1) FIG. 1 is a schematic view of an electrode group structure using the present invention. The protruding direction of the negative electrode ears 7b and one of the longitudinal middle bones 5 of the positive electrode current collector are stacked so as to overlap. The preparation conditions and test conditions of the control valve type lead-acid battery are as described above.
【００１９】（比較例１）図２は、従来から使用してい
た極板群構造の概略図である。負極耳部7bの突出方向
と、正極用集電体の縦細骨6のいずれかが重なるように
積層されている。その他の制御弁式鉛蓄電池の作成条件
や試験条件等は上記したものである。(Comparative Example 1) FIG. 2 is a schematic view of a conventional electrode group structure. The protruding direction of the negative electrode ear 7b and one of the vertical fine bones 6 of the positive electrode current collector are stacked so as to overlap. The preparation conditions and test conditions of the control valve type lead-acid battery are as described above.
【００２０】上記したそれぞれの制御弁式鉛蓄電池につ
いて、寿命試験をした結果を表１に示す。表1からわか
るように、本発明を用いると、制御弁式鉛蓄電池を長寿
命化することができる。Table 1 shows the results of a life test of each of the above-described control valve type lead-acid batteries. As can be seen from Table 1, the use of the present invention can extend the life of the control valve type lead-acid battery.
【００２１】寿命となった制御弁式鉛蓄電池を解体調査
したところ、正極板11は、正極耳部7aから遠く離れた負
極耳部7bに対向する付近で、上方に大きく変形する傾向
が認められた。実施例１は、負極耳部7bの突出方向と、
正極用集電体の縦中骨5とが重なるように積層されてい
る。したがって、その部分では変形しにくくなってお
り、その結果、ショートしにくくなったためと考えられ
る。Disassembly of the control valve type lead-acid battery that has reached the end of its service life shows that the positive electrode plate 11 has a tendency to significantly deform upward near the negative electrode ear 7b far from the positive electrode ear 7a. Was. In the first embodiment, the projecting direction of the negative
The current collector for the positive electrode is laminated so as to overlap with the longitudinal center bone 5. Therefore, it is considered that the portion is hardly deformed, and as a result, a short circuit is hardly caused.
【００２２】[0022]
【表１】 [Table 1]
【００２３】[0023]
【発明の効果】上述したように、本発明を用いた制御弁
式鉛蓄電池は、長寿命化が可能となり工業上優れたもの
である。As described above, the control valve type lead-acid battery using the present invention has a long service life and is industrially excellent.
【図１】本発明を用いた極板群構造の概略図である。FIG. 1 is a schematic view of an electrode group structure using the present invention.
【図２】従来の極板群構造の概略図である。FIG. 2 is a schematic diagram of a conventional electrode group structure.
１：横枠骨、 ２：縦枠骨、 ３：横細骨、 ４：横中
骨、 ５：縦中骨、６：縦細骨、 ７ａ：正極耳部、 ７
ｂ：負極耳部、 １１：正極板、１２：負極板、 １３：
セパレータ1: horizontal frame bone, 2: vertical frame bone, 3: horizontal fine bone, 4: horizontal middle bone, 5: vertical middle bone, 6: vertical fine bone, 7a: positive electrode ear, 7
b: negative electrode ear, 11: positive electrode plate, 12: negative electrode plate, 13:
Separator
Claims (1)
た正極耳部を有する正極板と、略長方形状をしており、
上方向に突出した負極耳部を有する負極板とを、セパレ
ータを介して積層し、溶接して極板群を作製して用いる
制御弁式鉛蓄電池において、前記正極板は、正極用集電
体にペースト状活物質を充填して作製したものであり、
前記正極用集電体の周囲部分は、縦枠骨と横枠骨とで形
成されており、前記正極用集電体の内側部分は、上下方
向に複数の縦中骨及び縦細骨とで形成されており、前記
縦中骨の断面積は、前記縦細骨の断面積の２倍以上を有
するものであり、前記縦中骨のいずれかが、前記負極耳
部の突出方向と重なるように積層されていることを特徴
とする制御弁式鉛蓄電池。1. A positive plate having a substantially rectangular shape and having a positive lug protruding upward, and a substantially rectangular shape;
In a control valve type lead-acid battery, a negative electrode plate having a negative electrode lug protruding upward is laminated via a separator and welded to produce a positive electrode group, wherein the positive electrode plate is a positive electrode current collector. It is made by filling a paste-like active material into
A peripheral portion of the positive electrode current collector is formed of a vertical frame bone and a horizontal frame bone, and an inner portion of the positive electrode current collector is formed of a plurality of vertical medial bones and vertical fine bones in a vertical direction. And the cross-sectional area of the longitudinal medial bone is at least twice the cross-sectional area of the longitudinal medial bone. A control valve type lead-acid battery characterized in that it is laminated on a battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001022651A JP2002231302A (en) | 2001-01-31 | 2001-01-31 | Control valve type lead-acid battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001022651A JP2002231302A (en) | 2001-01-31 | 2001-01-31 | Control valve type lead-acid battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2002231302A true JP2002231302A (en) | 2002-08-16 |
Family
ID=18888037
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001022651A Abandoned JP2002231302A (en) | 2001-01-31 | 2001-01-31 | Control valve type lead-acid battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2002231302A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4892651B1 (en) * | 2010-10-18 | 2012-03-07 | 新神戸電機株式会社 | Lead acid battery |
| JP2012089511A (en) * | 2011-12-15 | 2012-05-10 | Shin Kobe Electric Mach Co Ltd | Lead storage battery |
| TWI413288B (en) * | 2012-03-02 | 2013-10-21 | Shin Kobe Electric Machinery | Lead battery |
-
2001
- 2001-01-31 JP JP2001022651A patent/JP2002231302A/en not_active Abandoned
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4892651B1 (en) * | 2010-10-18 | 2012-03-07 | 新神戸電機株式会社 | Lead acid battery |
| WO2012053025A1 (en) * | 2010-10-18 | 2012-04-26 | 新神戸電機株式会社 | Lead storage battery |
| CN102640334A (en) * | 2010-10-18 | 2012-08-15 | 新神户电机株式会社 | Lead storage battery |
| US8586243B2 (en) | 2010-10-18 | 2013-11-19 | Shin-Kobe Electric Machinery Co., Ltd. | Lead acid storage battery |
| CN102640334B (en) * | 2010-10-18 | 2014-09-17 | 新神户电机株式会社 | Lead storage battery |
| US8841028B2 (en) | 2010-10-18 | 2014-09-23 | Shin-Kobe Electric Machinery Co., Ltd. | Lead acid storage battery |
| JP2012089511A (en) * | 2011-12-15 | 2012-05-10 | Shin Kobe Electric Mach Co Ltd | Lead storage battery |
| TWI413288B (en) * | 2012-03-02 | 2013-10-21 | Shin Kobe Electric Machinery | Lead battery |
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