JPH0770317B2 - Manufacturing method of electrode plate for lead-acid battery - Google Patents
Manufacturing method of electrode plate for lead-acid batteryInfo
- Publication number
- JPH0770317B2 JPH0770317B2 JP62299135A JP29913587A JPH0770317B2 JP H0770317 B2 JPH0770317 B2 JP H0770317B2 JP 62299135 A JP62299135 A JP 62299135A JP 29913587 A JP29913587 A JP 29913587A JP H0770317 B2 JPH0770317 B2 JP H0770317B2
- Authority
- JP
- Japan
- Prior art keywords
- lead
- lead powder
- electrode plate
- manufacturing
- raw material
- 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
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
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/48—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
- H01M4/56—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of lead
- H01M4/57—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of lead of "grey lead", i.e. powders containing lead and lead oxide
-
- 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)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Battery Electrode And Active Subsutance (AREA)
Description
【発明の詳細な説明】 産業上の利用分野 本発明は鉛蓄電池用極板の製造法の改良に関するもので
ある。Description: FIELD OF THE INVENTION The present invention relates to an improvement in a method for manufacturing an electrode plate for a lead storage battery.
従来の技術 鉛蓄電池におけるペースト式極板製造法によるものは、
従来から原料鉛粉と水、硫酸および合成樹脂繊維添加剤
または有機添加剤を練合してペーストを得て鉛格子体に
塗着して、これらの極板を組み立て鉛蓄電池としてい
る。Conventional technology The lead-type electrode plate manufacturing method for lead-acid batteries is
Conventionally, a raw material lead powder and water, sulfuric acid and a synthetic resin fiber additive or an organic additive are kneaded to obtain a paste, which is applied to a lead grid, and these electrode plates are assembled into a lead storage battery.
このときの原料鉛粉は、一般的な粉体と同様に使用され
る前までの10日間以上大気中で保管し、安定化させる。The raw material lead powder at this time is stored and stabilized in the air for 10 days or more before being used, like the general powder.
発明が解決しようとする問題点 最終的な電池性能を決定してしまう因子の一つに原料鉛
粉性状の安定性がある。すなわち、安定した電池性能を
確保するためには鉛粉性状の安定化が問題となる。Problems to be Solved by the Invention One of the factors that determines the final battery performance is the stability of the raw material lead powder. That is, in order to secure stable battery performance, stabilization of lead powder properties becomes a problem.
電池性能の初期特性、放置特性および使用中の充放電挙
動や特性は陽極板によって主に支配されるが、それは陽
極活物質構造が電解液の希硫酸との反応性および硫酸の
物質移動を決定するためである。陰極板においてもこの
現象には変わりない。さらに陽極活物質構造は、極板形
態における化成前後とペースト練合によっても変化する
が、原料鉛粉の凝集状態が全ての工程を経ても維持さ
れ、構造の骨格自体も形成されてしまう。このため鉛粉
の凝集状態を制御し安定性を確保することが鉛蓄電池製
造上の問題となる。The initial characteristics of battery performance, storage characteristics, and charge / discharge behavior and characteristics during use are mainly governed by the anode plate, which determines the reactivity of the anode active material structure with the dilute sulfuric acid of the electrolyte and the mass transfer of sulfuric acid. This is because This phenomenon does not change even in the cathode plate. Further, the structure of the anode active material changes depending on before and after the formation of the electrode plate and by kneading the paste, but the agglomeration state of the raw material lead powder is maintained even after all the steps, and the skeleton of the structure itself is formed. Therefore, controlling the agglomeration state of the lead powder and ensuring stability is a problem in manufacturing lead acid batteries.
現在は鉛粉の安定化を計るため大気中に10日間放置して
いるが、これは時間的な価格高になる欠点も有してい
る。第４図は大気中放置中の吸着水分量の変化と鉛粉安
定性の目安となる鉛粉に含まれる金属鉛量との関係を示
すもので、吸着水分量の安定には７日必要であることが
わかる。At present, it is left in the atmosphere for 10 days to stabilize the lead powder, but this also has the drawback of increasing the price over time. Figure 4 shows the relationship between the change in the amount of adsorbed water during standing in the atmosphere and the amount of metallic lead contained in the lead powder, which is a measure of lead powder stability. It takes 7 days for the adsorbed water amount to stabilize. I know there is.
問題点を解決するための手段 本発明は、上記の点に鑑みなされたもので、原料鉛粉と
硫酸、水および合成樹脂繊維添加剤または有機添加剤を
練合してペーストとし、該ペーストを格子体に塗着して
極板とする鉛蓄電池用極板の製造法であって、前記原料
鉛粉は、その製造後に湿り空気中に通して鉛粉粒子表面
層に水分を強制的に吸着させ運搬移動させることによ
り、鉛粉の凝集状態を変化させ、鉛粉粒子の平均粒子径
を増大させたものを使用する、ことを特徴とする。Means for Solving Problems The present invention has been made in view of the above points, and a raw material lead powder and sulfuric acid, water and a synthetic resin fiber additive or an organic additive are kneaded into a paste, and the paste is A method for producing an electrode plate for a lead storage battery, which is applied to a grid to form an electrode plate, wherein the raw material lead powder is passed through moist air after its manufacture to forcibly adsorb moisture on the surface layer of the lead powder particles. It is characterized in that the lead powder is changed in the agglomeration state by carrying and moving the lead powder to increase the average particle diameter of the lead powder.
作用 各々の鉛粉粒子を早期にしかも均一な凝集状態とするこ
とができ、化成後活物質構造の骨格が確保されることに
より、電池性能の向上を計る。Action The respective lead powder particles can be brought into an early and uniform agglomerated state, and the skeleton of the active material structure after chemical conversion is secured, thereby improving the battery performance.
実施例 本発明では製造直後の鉛粉を30〜50℃の100％湿り空気
中を通過させ、鉛粉粒子表面層における吸着水分量を強
制的に確保するものである。吸着水分によって鉛粉の凝
集状態が変化することを凝集鉛粉粒子の平均粒子径で表
わしたものが第１図である。本発明品Ａは従来品Ｂと比
較した場合、平衡に達する平均粒子径が大きくなる。こ
のことは水分を強制的に吸着させ運搬移動させることに
より造粒効果が起こることを示している。さらに第２図
は本発明品Ａの吸着水分量とそのときの鉛粉中の金属Pb
量の変化を大気中放置日数に対して調べたものを示す。
本発明品Ａは初期の吸着水分量を0.035wt％を確保する
ことにより、鉛粉の安定性の目安となる金属鉛量も早期
に減少し、放置日数３日程度で安定化してくることがわ
かる。尚、初期の吸着水分量を0.05％まで確保すると、
大気中放置日数はわずかでよい。Example In the present invention, the lead powder immediately after production is passed through 100% humid air at 30 to 50 ° C. to forcibly secure the adsorbed water content in the surface layer of the lead powder particles. FIG. 1 shows the change in the aggregation state of lead powder due to the adsorbed water, which is represented by the average particle diameter of the aggregated lead powder particles. When compared with the conventional product B, the product A of the present invention has a larger average particle size reaching equilibrium. This indicates that the granulation effect occurs when water is forcibly adsorbed and transported. Further, FIG. 2 shows the amount of adsorbed water of the product A of the present invention and the metal Pb in the lead powder at that time.
The figure shows the change in the amount compared with the number of days left in the atmosphere.
In the product A of the present invention, by securing the initial amount of adsorbed water of 0.035 wt%, the amount of metallic lead, which is a measure of the stability of the lead powder, is also reduced early, and it can be stabilized in about 3 days of standing. Recognize. If you secure the initial amount of adsorbed water to 0.05%,
Only a few days left in the atmosphere is sufficient.
鉛粉を凝集させたことによる効果をEB−100電池（100A
h）の初期容量によって調べ第３図に示す。吸着水分量
が増加するのに伴い0.2c放電持続時間がのびてくること
がわかる。また吸着水分量が増加しても0.2c放電持続時
間は飽和してしまう。このことは凝集鉛粉粒子の大きさ
が放電持続時間を支配してしまうことを示している。即
ち、凝集鉛粉粒子の平均粒子径が大きく確保できる本発
明の方法は電池性能の向上を可能にする。EB-100 battery (100A
The initial capacity of h) was examined and shown in FIG. It can be seen that the 0.2c discharge duration extends as the amount of adsorbed water increases. Moreover, even if the amount of adsorbed water increases, the 0.2c discharge duration becomes saturated. This indicates that the size of the agglomerated lead powder particles dominates the discharge duration. That is, the method of the present invention, which can secure a large average particle size of agglomerated lead powder particles, enables improvement of battery performance.
発明の効果 上述したように本発明は次の如き効果を奏し得る。
（１）吸着水分量を大気中放置前から確保することによ
り鉛粉粒子を早期に安定化できる。（２）原料鉛粉製造
直後に湿り空気中を通過させることにより凝集鉛粉粒子
径を大きくできる。（３）凝集鉛粉粒子径を大きくする
ことにより電池性能とくに初期容量の向上が可能とな
る。EFFECTS OF THE INVENTION As described above, the present invention can exert the following effects.
(1) Lead powder particles can be stabilized early by ensuring the amount of adsorbed water before being left in the atmosphere. (2) The particle size of agglomerated lead powder can be increased by passing it through moist air immediately after producing the raw lead powder. (3) It is possible to improve the battery performance, especially the initial capacity, by increasing the particle size of the agglomerated lead powder.
第１図は吸着水分量と鉛粉粒子の平均粒子径の関係を示
す曲線図、第２図は吸着水分量とそのときの鉛粉中の金
属Pb量の変化を放置日数に対して調べた曲線図、第３図
は吸着水分量と電池の初期性能を示す曲線図、第４図は
従来法による放置日数に対する吸着水分量と鉛粉中Pb量
の変化を示す曲線図である。Fig. 1 is a curve diagram showing the relationship between the amount of adsorbed water and the average particle size of lead powder particles, and Fig. 2 is a graph showing the change in the amount of adsorbed water and the amount of metal Pb in the lead powder with respect to the number of days left. A curve diagram, FIG. 3 is a curve diagram showing the adsorbed water content and the initial performance of the battery, and FIG. 4 is a curve diagram showing the changes in the adsorbed water content and the Pb content in the lead powder with respect to the number of days left to stand by the conventional method.
Claims (2)
加剤または有機添加剤を練合してペーストとし、該ペー
ストを格子体に塗着して極板とする鉛蓄電池用極板の製
造法であって、 前記原料鉛粉は、その製造後に湿り空気中に通して鉛粉
粒子表面層に水分を強制的に吸着させ運搬移動させるこ
とにより、鉛粉の凝集状態を変化させ、鉛粉粒子の平均
粒子径を増大させたものを使用する、 ことを特徴とする鉛蓄電池用極板の製造法。1. A lead-acid battery electrode plate comprising a raw material lead powder, sulfuric acid, water, a synthetic resin fiber additive or an organic additive kneaded to form a paste, and the paste is applied to a grid to form an electrode plate. In the manufacturing method, the raw material lead powder is changed in the agglomeration state of the lead powder by forcibly adsorbing and transporting moisture to the surface layer of the lead powder particles by passing it through humid air after its production, A method for manufacturing an electrode plate for a lead storage battery, comprising using powder particles having an increased average particle diameter.
着水分量が0.03〜0.05wt％である特許請求の範囲第１項
記載の鉛蓄電池用極板の製造法。2. The method for producing a lead storage battery electrode plate according to claim 1, wherein the adsorbed water content of the raw material lead powder after passing through humid air is 0.03 to 0.05 wt%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62299135A JPH0770317B2 (en) | 1987-11-27 | 1987-11-27 | Manufacturing method of electrode plate for lead-acid battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62299135A JPH0770317B2 (en) | 1987-11-27 | 1987-11-27 | Manufacturing method of electrode plate for lead-acid battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01143143A JPH01143143A (en) | 1989-06-05 |
| JPH0770317B2 true JPH0770317B2 (en) | 1995-07-31 |
Family
ID=17868577
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62299135A Expired - Lifetime JPH0770317B2 (en) | 1987-11-27 | 1987-11-27 | Manufacturing method of electrode plate for lead-acid battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0770317B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6476481B2 (en) | 1998-05-05 | 2002-11-05 | International Rectifier Corporation | High current capacity semiconductor device package and lead frame with large area connection posts and modified outline |
| CN109244358A (en) * | 2018-10-31 | 2019-01-18 | 江苏华兴电气科技有限公司 | A kind of ultralow partial size lead powder extraction element |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63143748A (en) * | 1986-12-08 | 1988-06-16 | Furukawa Battery Co Ltd:The | Manufacture of electrode plate for clad type lead storage battery |
-
1987
- 1987-11-27 JP JP62299135A patent/JPH0770317B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01143143A (en) | 1989-06-05 |
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