JPH0523017B2 - - Google Patents
Info
- Publication number
- JPH0523017B2 JPH0523017B2 JP59204352A JP20435284A JPH0523017B2 JP H0523017 B2 JPH0523017 B2 JP H0523017B2 JP 59204352 A JP59204352 A JP 59204352A JP 20435284 A JP20435284 A JP 20435284A JP H0523017 B2 JPH0523017 B2 JP H0523017B2
- Authority
- JP
- Japan
- Prior art keywords
- tube
- mandrel
- active material
- storage battery
- resin
- 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 - Fee Related
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
- H01M4/14—Electrodes for lead-acid accumulators
- H01M4/16—Processes of manufacture
-
- 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
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (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
本発明はバツテリーフオークリフトなどの電気
車や長寿命形の据置電池などに使用される蓄電池
の陽極板とその製造法に関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to an anode plate of a storage battery used in electric vehicles such as battery forklifts, long-life stationary batteries, etc., and a method for manufacturing the same.
従来技術とその問題点
バツテリーフオークリフトなどの電気車や長寿
命形の据置電池にはクラツド式蓄電池陽極板が多
く使用される。このクラツド式蓄電池陽極板はチ
ユーブ内に活物質としての鉛粉または鉛酸化物粉
末を充填した後、該活物質の脱落を防止する底詰
樹脂を嵌入したものであるが、底詰樹脂の嵌入は
樹脂とチユーブとの位置合わせが微妙であるう
え、チユーブと樹脂との僅かな透き間から活物質
が脱落したり、製造工程の機械化が困難であると
いう問題点があつた。このため底詰を射出成形に
より行なう方法が提案されているが、射出成形時
の圧力によつて溶融した樹脂がチユーブ内に充填
された活物質の鉛粉または鉛酸化物粉末中に食い
込み、活物質を介してチユーブを内部から圧迫
し、チユーブを破裂させることがあつた。この状
況を第４図の従来のクラツド式蓄電池陽極板の一
部の要部切欠き図により説明する。第４図におい
て１はチユーブ、２は心金、３は鉛粉または鉛酸
化物粉末からなる活物質、４は射出成形により底
詰された樹脂である。この従来の陽極板は活物質
３が粉末状態の時に底詰する樹脂４を射出成形す
るため、その圧力により樹脂４がチユーブ１の奥
まで食い込み、活物質３を介してチユーブ１を内
部から圧迫してチユーブ１を破裂させる。さらに
樹脂４が心金２を直接包み込むため、長期間の使
用において生じる心金２の伸びに対して樹脂４が
応力を受け、その結果チユーブ１が軸方向の張力
を受けてチユーブ１に亀裂を発生させ、そこから
活物質を脱落させてしまうことがあつた。Conventional technology and its problems Clad storage battery anode plates are often used in electric vehicles such as battery forklifts and long-life stationary batteries. This closed-type storage battery anode plate is made by filling a tube with lead powder or lead oxide powder as an active material, and then inserting a bottom-filling resin to prevent the active material from falling off. However, there were problems in that the alignment between the resin and the tube was delicate, the active material could fall out from the slight gap between the tube and the resin, and it was difficult to mechanize the manufacturing process. For this reason, a method of filling the bottom by injection molding has been proposed, but the pressure during injection molding causes the molten resin to bite into the active material, lead powder or lead oxide powder, filled in the tube, causing the tube to become active. In some cases, the tube was compressed from inside through the substance, causing the tube to burst. This situation will be explained with reference to FIG. 4, which is a cutaway diagram of a part of the main part of a conventional closed-loop storage battery anode plate. In FIG. 4, 1 is a tube, 2 is a metal core, 3 is an active material made of lead powder or lead oxide powder, and 4 is a resin filled by injection molding. This conventional anode plate is made by injection molding the resin 4 that fills up when the active material 3 is in a powder state, so the pressure causes the resin 4 to bite deep into the tube 1, compressing the tube 1 from the inside through the active material 3. to rupture tube 1. Furthermore, since the resin 4 directly wraps the mandrel 2, the resin 4 is subjected to stress due to the elongation of the mandrel 2 that occurs during long-term use, and as a result, the tube 1 is subjected to axial tension, causing cracks in the tube 1. This caused the active material to fall out.
発明の目的
本発明は上記の如き欠点を解消するクラツド式
蓄電池陽極板とその製造法に関するもので、この
種の陽極板を用いた蓄電池の長寿命化と製造工程
の機械化を容易にすることを目的とする。Purpose of the Invention The present invention relates to an anode plate for a clad storage battery that eliminates the above-mentioned drawbacks, and a method for manufacturing the same. purpose.
発明の構成
本発明のクラツド式蓄電池陽極板とその製造法
は、活物質としての鉛粉または鉛酸化物粉末を硫
酸に浸漬すると硫酸鉛に変化して固化することに
着目してなされたもので、心金にチユーブ下端よ
り内側へ後退させたものを用い、チユーブ内に活
物質を充填後硫酸に浸漬して乾燥、固化させてか
ら該活物質を心金下端部の近傍まで除去し、底詰
する樹脂を射出成形してなるものである。Structure of the Invention The clad storage battery anode plate and the manufacturing method thereof of the present invention were developed based on the fact that when lead powder or lead oxide powder as an active material is immersed in sulfuric acid, it changes to lead sulfate and solidifies. , the mandrel is set back inward from the bottom end of the tube, and after filling the tube with the active material, it is immersed in sulfuric acid to dry and solidify, and then the active material is removed to the vicinity of the bottom end of the mandrel. It is made by injection molding the filling resin.
実施例
以下実施例により詳述する。第１図は本発明に
関るクラツド式蓄電池陽極板の一部の要部切り欠
き図で、数字はすべて第４図と共通にし、１′は
チユーブ１の下端部、２′は心金２の下端部、
３′は活物質３の除去後の端面である。第１図に
おいて心金２の下端部２′をチユーブ１の下端部
１′より内側へ後退させておき、チユーブ１内に
活物質３を充填後硫酸に浸漬して乾燥させると、
該活物質３は硫酸鉛となつて固化する。その後チ
ユーブ１の下端部１′から錐などをねじ込み、固
化した活物質を心金２の下端部２′近傍まで粉末
化し、吸引などの方法によつて除去するととも
に、その部分に底詰する樹脂４を射出成形してな
る。このような本発明のクラツド式蓄電池陽極板
では、底詰する樹脂４は活物質３の除去後の端面
３′から内側へ食い込むことはなく、チユーブを
内側から圧迫することはない。EXAMPLES The following examples will be described in detail. FIG. 1 is a cutaway diagram of a part of the main part of the anode plate of a clad storage battery according to the present invention, and all the numbers are the same as in FIG. the lower end of
3' is the end surface after the active material 3 has been removed. In FIG. 1, the lower end 2' of the mandrel 2 is set back inward from the lower end 1' of the tube 1, and after filling the tube 1 with the active material 3, it is immersed in sulfuric acid and dried.
The active material 3 becomes lead sulfate and solidifies. After that, a drill or the like is screwed into the lower end 1' of the tube 1, and the solidified active material is pulverized to the vicinity of the lower end 2' of the core 2, and removed by a method such as suction, and the part is filled with resin. 4 is injection molded. In the clad type storage battery anode plate of the present invention, the resin 4 filling the bottom does not dig inward from the end face 3' after the active material 3 is removed, and does not press the tube from the inside.
一方本発明の製造法において、心金２の下端部
２′をチユーブ１の下端部１′より後退させておく
ことは、固化した活物質を除去する際、錐などを
ねじ込んで粉末化するといつた機械的手段により
行なうことができ、しかも除去する深さも均一に
することができるため製造工程の機械化を容易な
らしめる。さらに底詰する樹脂４が心金２の下端
部２′を直接包み込むことはなく、従来の如きチ
ユーブ１に亀裂を発生させることもない。なお心
金２の下端部２′と活物質を除去した後の端面
３′との距離は、長期間の使用において生じる心
金２の伸びがあつても端面３′から心金２の下端
部２′が突出しない程度とするのが適当である。 On the other hand, in the manufacturing method of the present invention, the lower end 2' of the mandrel 2 is set back from the lower end 1' of the tube 1, so that when the solidified active material is removed, a drill or the like is screwed in to turn it into powder. This can be done by mechanical means, and the removal depth can be made uniform, making it easy to mechanize the manufacturing process. Furthermore, the bottom-filling resin 4 does not directly wrap the lower end 2' of the mandrel 2, and no cracks are generated in the tube 1 as in the conventional case. Note that the distance between the lower end 2' of the mandrel 2 and the end face 3' after removing the active material is the distance from the end face 3' to the lower end of the mandrel 2, even if the mandrel 2 stretches during long-term use. It is appropriate that 2' not protrude.
次に上記本発明の陽極板と、従来の陽極板とし
て心金２の下端部２′が活物質３の除去後の端面
３′から突出したものについて、射出成形により
底詰された樹脂の耐引張性、およびこの陽極板を
用いて蓄電池を組み立てた時のサイクル寿命試験
とこれに伴う活物質の脱落量を比較する。 Next, regarding the anode plate of the present invention and the conventional anode plate in which the lower end 2' of the mandrel 2 protrudes from the end surface 3' after the removal of the active material 3, the resin filled at the bottom by injection molding is used. We will compare tensile properties, cycle life tests when a storage battery is assembled using this anode plate, and the amount of active material falling off as a result.
長さが275mm、内径が９mmのチユーブ14本から
なるクラツド式蓄電池陽極板に鉛粉を充填後、硫
酸に浸漬、乾燥、固化させてから該鉛粉を除去す
る。本発明品(A)は心金２の下端部２′を突出させ
ないようにし、従来品(B)は心金２の下端部２′を
突出させ、各々底詰を220℃に溶融させた高密度
ポリエチレンを圧力25Kg／cm2で射出成形した。本
発明品(A)と従来品(B)との底詰された樹脂の耐引張
性は本発明品(A)が13〜18Kg／本の範囲でチユーブ
からはずれたのに対し、従来品(B)は９〜23Kg／本
の範囲でチユーブからはずれた。従来品が耐引張
性にバラツキがあるのは、チユーブ内の除去され
た鉛粉、特に心金とチユーブとの間にバラツキが
あるためで、樹脂とチユーブとの接触面積の大小
によるものと考えられる。 A closed-type storage battery anode plate consisting of 14 tubes with a length of 275 mm and an inner diameter of 9 mm is filled with lead powder, then immersed in sulfuric acid, dried, and solidified, and then the lead powder is removed. The product of the present invention (A) does not allow the lower end 2' of the mandrel 2 to protrude, and the conventional product (B) has the lower end 2' of the mandrel 2 protruding. Density polyethylene was injection molded at a pressure of 25 Kg/cm 2 . Regarding the tensile resistance of the bottom-filled resin of the present invention product (A) and the conventional product (B), the present invention product (A) was removed from the tube in the range of 13 to 18 kg/piece, whereas the conventional product ( B) was off the tube in the range of 9 to 23 kg/piece. The reason why conventional products have variations in tensile resistance is thought to be due to variations in the removed lead powder inside the tube, especially between the mandrel and the tube, and also due to the size of the contact area between the resin and the tube. It will be done.
さらに各陽極板をそれぞれ５枚ずつ組み込み、
250AH／5HRの容量の蓄電池を制作し、放電を63A
×3H、充電を45A×5H、周囲温度30℃、電解液と
しての硫酸の比重を20℃で１。280のものを用い、
サイクル寿命試験を行ない、その結果を第２図に
示す。また第３図はこれに伴う活物質の脱落量
を、従来品(B)を用いた蓄電池の1200サイクル時の
脱落量を100％とした時の比を示す。第２図から
本発明品(A)を用いた蓄電池は寿命が1500サイクル
まで達成できたのに対し、従来品(B)を用いた蓄電
池は1200サイクルにとどまつた。さらに第３図に
おいて本発明品(A)を用いた蓄電池の1200サイクル
時の活物質の脱落量は従来品(B)を用いた蓄電池の
65％であつた。 In addition, 5 of each anode plate were installed,
Created a storage battery with a capacity of 250 AH /5HR and discharged at 63 A.
×3 H , charging at 45 A ×5 H , ambient temperature 30°C, specific gravity of sulfuric acid as electrolyte at 20°C, using 1.280.
A cycle life test was conducted and the results are shown in Figure 2. Moreover, FIG. 3 shows the ratio of the amount of active material falling off due to this, when the amount of falling off at 1200 cycles of the storage battery using the conventional product (B) is taken as 100%. As shown in FIG. 2, the battery using the present invention product (A) achieved a lifespan of up to 1500 cycles, while the battery using the conventional product (B) only had a life of 1200 cycles. Furthermore, in Figure 3, the amount of active material shed during 1200 cycles of the storage battery using the invention product (A) is the same as that of the storage battery using the conventional product (B).
It was 65%.
このことから活物質の脱落量とサイクル寿命と
は相互に関連する一方、サイクル寿命試験後半に
おいて、従来品(B)を用いた蓄電池は心金の伸びに
よつてチユーブに亀裂が生じ、この部分から相当
量の活物質が脱落した形跡が認められた。 Therefore, while the amount of active material shedding and the cycle life are interrelated, in the second half of the cycle life test, cracks appeared in the tube of the storage battery using the conventional product (B) due to the elongation of the mandrel, and this area Evidence that a considerable amount of active material had fallen off was observed.
なお上記実施例において、樹脂の種類はポリエ
チレンに限定するものではなく、耐酸、耐熱性に
すぐれたポリプロピレン、スチロール樹脂、
ABS樹脂なども適用でき、使用する樹脂に応じ
て射出成形の条件も任意に定め得るものである。 In the above examples, the type of resin is not limited to polyethylene, but may include polypropylene, styrene resin, which has excellent acid resistance and heat resistance,
ABS resin can also be used, and injection molding conditions can be arbitrarily determined depending on the resin used.
発明の効果
以上詳述した如く本発明のクラツド式蓄電池陽
極板とその製造法は、活物質を固化して射出成形
時の樹脂の浸入を防いでいるのでチユーブの破裂
を防ぐことができる。また、心金を固化させた活
物質の端面より後退させておくことにより、長期
間の使用における心金の伸びによつて生じるチユ
ーブの亀裂とそこからの活物質の脱落を防止する
ことができ、蓄電池を長寿命化させ得るとともに
製造工程の機械化も容易ならしめることができ
る。Effects of the Invention As detailed above, the clad storage battery anode plate of the present invention and its manufacturing method solidify the active material to prevent resin from infiltrating during injection molding, thereby preventing the tube from bursting. In addition, by setting the mandrel back from the end face of the solidified active material, it is possible to prevent the tube from cracking and the active material from falling out due to elongation of the mandrel during long-term use. , the life of the storage battery can be extended, and the manufacturing process can be easily mechanized.
さらに本発明の効果を高めるために、射出成形
により底詰された樹脂の深さすなわち活物質を除
去する深さは２〜10mmとし、また心金は活物質除
去後の端面に一致させてもよく、該端面から後退
させる場合その深さは２mm以内とするのが適当で
ある。さらに心金は活物質を充填した後固化させ
る前に適当な長さに切断するものであつてもよ
い。 Furthermore, in order to enhance the effect of the present invention, the depth of the resin filled by injection molding, that is, the depth at which the active material is removed, is set to 2 to 10 mm, and the mandrel may be aligned with the end surface after the active material is removed. When retreating from the end face, it is appropriate that the depth be within 2 mm. Further, the mandrel may be cut into an appropriate length after being filled with the active material and before solidification.
第１図は本発明に関るクラツド式蓄電池陽極板
の一部の要部切欠き図、第２図、第３図は本発明
に関るクラツド式蓄電池陽極板を用いて製作した
蓄電池と、従来のクラツド式蓄電池陽極板を用い
て製作した蓄電池とのサイクル寿命試験における
容量、活物質の脱落量を比較した図、第４図は従
来のクラツド式蓄電池陽極板の一部の要部切欠き
図である。
１……チユーブ、１′……該チユーブの下端部、
２……心金、２′……該心金の下端部、３……活
物質、３′……該活物質除去後の端面、４……樹
脂。
FIG. 1 is a cutaway view of a part of the main part of the anode plate for a clad storage battery according to the present invention, and FIGS. 2 and 3 show a storage battery manufactured using the anode plate for a clad storage battery according to the present invention, A diagram comparing the capacity and amount of active material shedding in a cycle life test with a storage battery manufactured using a conventional clad-type storage battery anode plate. Figure 4 shows a cut-out of a part of the main part of a conventional clad-type storage battery anode plate. It is a diagram. 1...tube, 1'...lower end of the tube,
2... Mandrel, 2'... Lower end of the mandrel, 3... Active material, 3'... End face after removal of the active material, 4... Resin.
Claims (1)
ーブとの間隙に活物質を充填してなるクラツド式
蓄電池陽極板において、心金の下端部をチユーブ
の下端部より内側に後退させるとともに、該チユ
ーブ内に活物質を充填し、硫酸に浸漬して乾燥、
固化され、この固化させた活物質を心金が突出し
ない程度まで除去し、この除去した部分に底詰す
る樹脂を射出成形してなることを特徴とするクラ
ツド式蓄電池陽極板。 ２ 心金にチユーブを嵌合させた時、心金の下端
部がチユーブの下端部より内側に後退したものを
使用し、前記心金とチユーブとの間隙に活物質を
充填するとともに硫酸に浸漬し乾燥、固化された
後、前記固化させた活物質を心金の下端部近傍ま
で粉末化し、吸引等によりこれを除去した後、こ
の除去した部分に底詰する樹脂を射出成形するこ
とを特徴とするクラツド式蓄電池陽極板の製造
法。 ３ 心金にチユーブを嵌合させ、前記心金とチユ
ーブとの間隙に活物質を充填するとともに心金の
下端部をチユーブの下端部から後退させるように
切断した後、硫酸に浸漬、乾燥、固化させた後前
記固化させた活物質を心金の下端部近傍まで粉末
化し、吸引等によりこれを除去した後、この除去
した部分に底詰する樹脂を射出成形することを特
徴とするクラツド式蓄電池陽極板の製造法。[Scope of Claims] 1. In a clad type storage battery anode plate in which a tube is fitted to a mandrel and an active material is filled in the gap between the mandrel and the tube, the lower end of the mandrel is placed closer to the lower end of the tube. While retreating inward, the active material is filled into the tube, immersed in sulfuric acid, and dried.
1. An anode plate for a clad type storage battery, characterized in that the solidified active material is removed to the extent that the core metal does not protrude, and a resin is injection molded to fill the removed portion. 2. When the tube is fitted to the mandrel, the lower end of the mandrel is retracted inward from the lower end of the tube, and the gap between the mandrel and the tube is filled with active material and immersed in sulfuric acid. After being dried and solidified, the solidified active material is pulverized to the vicinity of the lower end of the mandrel, and after this is removed by suction or the like, resin is injection molded to fill the removed part. A manufacturing method for a closed-loop storage battery anode plate. 3 Fit the tube to the mandrel, fill the gap between the mandrel and the tube with an active material, and cut the lower end of the mandrel so as to recede from the lower end of the tube, then immerse in sulfuric acid, dry, After solidification, the solidified active material is pulverized to the vicinity of the lower end of the mandrel, and after this is removed by suction etc., the resin to be filled in the removed part is injection molded. Manufacturing method for storage battery anode plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59204352A JPS6182668A (en) | 1984-09-28 | 1984-09-28 | Cathode plate of clad type storage battery and its producing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59204352A JPS6182668A (en) | 1984-09-28 | 1984-09-28 | Cathode plate of clad type storage battery and its producing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6182668A JPS6182668A (en) | 1986-04-26 |
| JPH0523017B2 true JPH0523017B2 (en) | 1993-03-31 |
Family
ID=16489082
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59204352A Granted JPS6182668A (en) | 1984-09-28 | 1984-09-28 | Cathode plate of clad type storage battery and its producing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6182668A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS632248A (en) * | 1986-06-20 | 1988-01-07 | Yuasa Battery Co Ltd | Manufacture of clad type plate |
| JPS6345750A (en) * | 1986-08-11 | 1988-02-26 | Yuasa Battery Co Ltd | Manufacture of clad type electrode plate |
| JPS6355855A (en) * | 1986-08-27 | 1988-03-10 | Yuasa Battery Co Ltd | Manufacture of cladding type electrode plate |
| JPH0642364B2 (en) * | 1986-09-08 | 1994-06-01 | 株式会社ユアサコーポレーション | Cladding type electrode plate manufacturing method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5873959A (en) * | 1981-10-27 | 1983-05-04 | Yuasa Battery Co Ltd | Clad type anode plate |
-
1984
- 1984-09-28 JP JP59204352A patent/JPS6182668A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6182668A (en) | 1986-04-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |