JPH0429191B2 - - Google Patents
Info
- Publication number
- JPH0429191B2 JPH0429191B2 JP58118977A JP11897783A JPH0429191B2 JP H0429191 B2 JPH0429191 B2 JP H0429191B2 JP 58118977 A JP58118977 A JP 58118977A JP 11897783 A JP11897783 A JP 11897783A JP H0429191 B2 JPH0429191 B2 JP H0429191B2
- Authority
- JP
- Japan
- Prior art keywords
- substrate
- plate
- lead
- lead alloy
- temperature
- 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
- 239000000758 substrate Substances 0.000 claims description 19
- 229910000978 Pb alloy Inorganic materials 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 9
- 239000002253 acid Substances 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 7
- 239000011149 active material Substances 0.000 description 6
- 238000005096 rolling process Methods 0.000 description 6
- 229910001245 Sb alloy Inorganic materials 0.000 description 4
- 229910045601 alloy Inorganic materials 0.000 description 4
- 239000000956 alloy Substances 0.000 description 4
- 238000009749 continuous casting Methods 0.000 description 4
- 238000007796 conventional method Methods 0.000 description 3
- 238000005266 casting Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000009864 tensile test Methods 0.000 description 2
- 229910000882 Ca alloy Inorganic materials 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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
- H01M4/82—Multi-step processes for manufacturing carriers for lead-acid accumulators
- H01M4/84—Multi-step processes for manufacturing carriers for lead-acid accumulators involving casting
-
- 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)
Description
この発明は、機械加工方式による鉛蓄電池用の
極板用基板の製造方法に関する。
鉛蓄電池の極板は、個々の格子基板に活物質を
充填して製造されているが、従来の格子基板は、
Sbを４〜７％（以下、「％」は重量％を表す。）
含有したPb−Sb係合金を鋳造方式で形成してい
た。しかし、最近は電池のメインテナスフリー化
が要求されるとともに、電池の軽量化、高容量
化、長寿命化が要求されるようになつてきた。
このため、従来の鉛合金の基板は、Sbを多く
含有するため、長寿命化の点で問題があり、また
鋳造方式のため格子基板を薄くすることが難し
く、電池の軽量化、高容量化を図ることができな
かつた。このことから、Sbを含有しないPb−Ca
係合金薄板を作成し、これを打抜き或いはエクス
パンド加工などの機械加工で格子基板を製造する
方法が開発され実用化されている。
しかし、メインテナンスフリー用鉛合金の板
は、機械的強度が弱く、このため鉛合金板から格
子基板を製造した場合、種々の問題を生じてい
た。
即ち、活物質の充填中に格子基板が容易に変形
したり、またこの基板から得られた極板を電池と
して組立て、使用している間に活物質が膨張した
り、また格子骨の腐食などによつて極板が伸び、
その結果、格子基板と活物質との密着性が阻害さ
れたり、或いは短絡を起して電池の寿命を早める
など、重大な問題を引き起こしていた。
この発明は、これらの問題を解消すべくなされ
たもので、その目的とするところは、メインテナ
ンスフリー用鉛合金の加工方式を改良することに
より、鉛合金の機械的強度を向上して、軽量化、
高容量化とともに長寿命化を図ることができる鉛
蓄電池用の極板用基板を得ようとするものであ
る。
即ち、この発明は、鋳造した鉛合金板を70〜
150°Cで加熱したのち急冷して硬化処理を施し、
次にこれを40〜100°Cの温度下で所定の厚さに圧
延加工し、これによつて得られた鉛合金薄板をエ
クスパンド加工して格子基板とすることを特徴と
する鉛蓄電池用の極板用基板の製造方法である。
以下に、この発明をさらに説明する。
この発明は、まずPb−Ca係合金、Pb−Sb係合
金、Pb−低Sb係合金などのメインテナンスフリ
ー用合金板を、連続鋳造或いは非連続的に製造す
る。この鉛合金板の厚さは、最終的に得ようとす
る格子基板の厚さ寸法より大きい寸法とする。次
いで、この鉛合金板に硬化処理を施す。ここでの
硬化処理は通常の硬化処理で、鉛合金板から粒子
を析出し、結晶粒を調整することにより硬化させ
るもので、ここでの加熱温度は合金組成によつて
も異なるが、Pb−Ca係合金では通常70〜150°C、
Pb−低Sb係合金では200°C以上とする。これらの
温度で加熱後急冷して硬化処理をする。
次に、この硬化処理をした鉛合金板を40〜
100°Cの下で圧延加工して所望の厚さとする。こ
こでの処理は、得られる鉛合金板の硬度を高める
ために40〜100°Cとする。後記の実験が示すよう
に、これが40°C以上でかつ100°C以下のときが強
度が最も高くなる。ここに得られたものを格子基
板の素材とする。この素材は、次に通常の方法で
エクスパンド加工をし、これに活物質をを充填し
て鉛蓄電池の極板とする。
以上の本発明によれば、圧延加工前の加熱、急
冷による硬化処理に加え、40〜100°Cの加熱下で
の圧延加工を施して硬度がさらに大きくなつてい
るので、電池の組立時、使用時などに極板の延び
が抑えられ、電池の長寿命を図ることが出来る。
次に、この発明の実施例を説明する。
実施例
Caを0.08％、Snを0.6％含有するPb合金の溶湯
から、公知の連続鋳造法によつて、厚さ1.6mmの
メインテナンスフリー用鉛合金板を製造し、これ
を120°Cで60分間加熱した後、急冷して硬化処理
をした。このものを図に示す温度で圧延加工し
て、厚さ0.85mmの圧延加工板を得た。このものの
引張り強度を調べ、図に曲線Ａとして示した。ま
た比較のため、連続鋳造法で得られたままのもの
を、上記と同じ温度で圧延したもの（従来品）に
ついて各引張強度を調べ、同じ図に曲線Ｂとして
示した。
この図で、縦軸は室温での引張試験で得られた
各材料の降伏強度σ0.2Ｔとσ0.2２０との比である。
σ0.2Ｔは、圧延温度Ｔ（°Ｃ）で圧延した板の降伏
強さ、σ0.2２０は、連続鋳造法で得られたままの
板厚1.6mmの室温での引張り試験における降伏強
度である。
図から明らかなように、本発明の場合は、従来
法のものより強度が大で、20〜120°Cで、特に40
〜100°Cで圧延加工するとよいことが分かる。
次に、本発明及び従来法で得られた圧延加工体
（いづれも加工温度100°Cで圧延後の厚さ1.1mmの
条）からエクスパンド基板を作成し、これで公称
容量50Ah／20HRの電池を作成した。これらの
電池についてJIS寿命試験80サイクルを行い、極
板の上下方向の延びを調べた。その結果を第１表
に示す。
The present invention relates to a method of manufacturing an electrode plate substrate for a lead-acid battery using a machining method. Lead-acid battery plates are manufactured by filling individual lattice substrates with active material, but conventional lattice substrates
4 to 7% Sb (hereinafter, "%" represents weight%)
The contained Pb-Sb alloy was formed by casting. However, recently there has been a demand for batteries to be maintenance-free, as well as for batteries to be lighter in weight, higher in capacity, and longer in life. For this reason, conventional lead alloy substrates contain a large amount of Sb, which poses problems in terms of longevity, and the casting method makes it difficult to make the lattice substrate thinner, making it easier to make batteries lighter and have higher capacity. I was unable to aim for this. From this, Pb−Ca containing no Sb
A method has been developed and put into practical use in which a lattice substrate is manufactured by creating a thin alloy plate and machining it by punching or expanding. However, maintenance-free lead alloy plates have low mechanical strength, and therefore various problems have arisen when grid substrates are manufactured from lead alloy plates. That is, the lattice substrate may easily deform during filling with the active material, the active material may expand while the electrode plate obtained from this substrate is assembled and used as a battery, and the lattice ribs may corrode. The electrode plate is stretched by
As a result, serious problems have occurred, such as the adhesion between the grid substrate and the active material being impaired, or short circuits occurring, shortening the life of the battery. This invention was made to solve these problems, and its purpose is to improve the mechanical strength of lead alloys and reduce their weight by improving the processing method for maintenance-free lead alloys. ,
The present invention aims to obtain an electrode plate substrate for a lead-acid battery that can increase the capacity and extend the service life. That is, this invention uses a cast lead alloy plate for 70~
After heating at 150°C, it is rapidly cooled and hardened.
This is then rolled to a predetermined thickness at a temperature of 40 to 100°C, and the resulting lead alloy thin plate is expanded to form a lattice substrate. This is a method for manufacturing an electrode plate substrate.
This invention will be further explained below. In the present invention, maintenance-free alloy plates such as Pb-Ca alloys, Pb-Sb alloys, Pb-low Sb alloys, etc. are manufactured by continuous casting or discontinuously. The thickness of this lead alloy plate is greater than the thickness of the grid substrate to be finally obtained. Next, this lead alloy plate is subjected to a hardening treatment. The hardening process here is a normal hardening process, in which particles are precipitated from a lead alloy plate and hardened by adjusting the crystal grains.The heating temperature here varies depending on the alloy composition, but the Pb- Usually 70-150°C for Ca-related alloys,
For Pb-low Sb alloys, the temperature should be 200°C or higher. After heating at these temperatures, the material is rapidly cooled and hardened. Next, this hardened lead alloy plate is
Roll it to the desired thickness at 100°C. The treatment here is carried out at 40 to 100°C to increase the hardness of the resulting lead alloy plate. As shown in the experiment below, the strength is highest when the temperature is above 40°C and below 100°C. The material obtained here will be used as the material for the lattice substrate. This material is then expanded using conventional methods and filled with active material to form the plates of lead-acid batteries. According to the present invention, in addition to the hardening treatment by heating and quenching before rolling, the hardness is further increased by rolling under heating at 40 to 100°C, so that when assembling the battery, This prevents the electrode plates from elongating during use, resulting in a longer battery life. Next, embodiments of the invention will be described. Example A maintenance-free lead alloy plate with a thickness of 1.6 mm was manufactured from a molten Pb alloy containing 0.08% Ca and 0.6% Sn by a known continuous casting method, and was heated at 120°C for 60 hours. After heating for a minute, it was rapidly cooled and hardened. This material was rolled at the temperature shown in the figure to obtain a rolled plate with a thickness of 0.85 mm. The tensile strength of this material was examined and shown as curve A in the figure. For comparison, the tensile strength of each product obtained by continuous casting and rolled at the same temperature as above (conventional product) was investigated and shown as curve B in the same figure. In this figure, the vertical axis is the ratio of yield strength σ 0.2 T to σ 0.2 20 of each material obtained in a tensile test at room temperature.
σ 0.2 T is the yield strength of a plate rolled at rolling temperature T (°C), and σ 0.2 20 is the yield strength in a tensile test at room temperature of a 1.6 mm thick plate obtained by the continuous casting method. . As is clear from the figure, the strength of the present invention is greater than that of the conventional method, especially at 20 to 120°C.
It can be seen that rolling at ~100°C is good. Next, expanded substrates were created from the rolled bodies obtained by the present invention and the conventional method (both strips with a thickness of 1.1 mm after rolling at a processing temperature of 100°C), and this was used to create a battery with a nominal capacity of 50Ah/20HR. It was created. These batteries were subjected to 80 cycles of a JIS life test, and the vertical extension of the electrode plates was examined. The results are shown in Table 1.
【表】
以上のように本発明によれば、鋳造したままの
鉛合金板を加熱、冷却による硬化処理をした後
に、さらに40〜100°Cで圧延加工して基板の機械
的強度を向上するので、この基板に活物質を充填
して電池極板を製造する際、及びその電池の使用
時に極板の延びを小さく抑えることができ、長寿
命化を図ることが出来るなど顕著な効果を期待す
ることができる。[Table] As described above, according to the present invention, after the as-cast lead alloy plate is hardened by heating and cooling, it is further rolled at 40 to 100°C to improve the mechanical strength of the board. Therefore, when manufacturing battery electrode plates by filling this substrate with active material, and when using the battery, it is possible to suppress the elongation of the electrode plate to a small extent, and we expect remarkable effects such as being able to extend the life of the battery. can do.
図は、圧延加工温度と降伏強度比の関係を示す
線図である。
The figure is a diagram showing the relationship between rolling temperature and yield strength ratio.
Claims (1)
ち急冷して硬化処理を施し、次にこれを40〜
100°Cの温度下で所定の厚さに圧延加工し、これ
によつて得られた鉛合金薄板をエクスパンド加工
して格子基板とすることを特徴とする鉛蓄電池用
の極板用基板の製造方法。1 A cast lead alloy plate is heated at 70 to 150°C, then rapidly cooled and hardened, and then heated at 40 to 150°C.
Manufacture of an electrode plate substrate for a lead-acid battery, characterized in that it is rolled to a predetermined thickness at a temperature of 100°C, and the resulting lead alloy thin plate is expanded to form a lattice substrate. Method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58118977A JPS6010563A (en) | 1983-06-30 | 1983-06-30 | Manufacture of lead storage battery plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58118977A JPS6010563A (en) | 1983-06-30 | 1983-06-30 | Manufacture of lead storage battery plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6010563A JPS6010563A (en) | 1985-01-19 |
| JPH0429191B2 true JPH0429191B2 (en) | 1992-05-18 |
Family
ID=14749959
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58118977A Granted JPS6010563A (en) | 1983-06-30 | 1983-06-30 | Manufacture of lead storage battery plate |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6010563A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100497769B1 (en) * | 1998-11-11 | 2005-09-15 | 한국타이어 주식회사 | Manufacturing method of lead acid battery alloy plate with improved corrosion resistance and deformation resistance |
-
1983
- 1983-06-30 JP JP58118977A patent/JPS6010563A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6010563A (en) | 1985-01-19 |
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